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WO2010089113A1 - Système d'aide au démarrage pour un véhicule - Google Patents

Système d'aide au démarrage pour un véhicule Download PDF

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Publication number
WO2010089113A1
WO2010089113A1 PCT/EP2010/000687 EP2010000687W WO2010089113A1 WO 2010089113 A1 WO2010089113 A1 WO 2010089113A1 EP 2010000687 W EP2010000687 W EP 2010000687W WO 2010089113 A1 WO2010089113 A1 WO 2010089113A1
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WO
WIPO (PCT)
Prior art keywords
voltage
starting
vehicle
battery
memory
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2010/000687
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German (de)
English (en)
Inventor
Heinz Wenzl
Hans-Peter Beck
André HAUBROCK
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Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to EP10704321A priority Critical patent/EP2394050A1/fr
Publication of WO2010089113A1 publication Critical patent/WO2010089113A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits specially adapted for starting of engines
    • F02N11/0862—Circuits specially adapted for starting of engines characterised by the electrical power supply means, e.g. battery
    • F02N11/0866—Circuits specially adapted for starting of engines characterised by the electrical power supply means, e.g. battery comprising several power sources, e.g. battery and capacitor or two batteries
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits specially adapted for starting of engines
    • F02N2011/0881—Components of the circuit not provided for by previous groups
    • F02N2011/0885—Capacitors, e.g. for additional power supply

Definitions

  • the invention relates to a starting aid system for a vehicle, comprising at least one power switch, in particular semiconductor switch, and a method for jump starting in a vehicle.
  • a portable multi-purpose starter device from DE 20 2007 004 272 U1 is known.
  • This has a housing for receiving a rechargeable battery, wherein in the housing electrical connection elements for connecting the battery are provided with provided in the housing electrical components.
  • DE 199 51 094 C2 discloses a method and a device for securing a network containing a battery against reverse polarity, short circuit and / or overvoltage, whereby a reduced current flow from a jump start point to the battery detected and only in the case of compliance with predetermined limits, a direct connection of the Fremdstartst Jardin whatsoevers to the battery and the electrical system is made.
  • DE 100 49 321 A1 discloses a device for external power supply in a motor vehicle for powering electrical consumers, which are internally connected to a power storage of a motor vehicle electrical system, wherein an inductive receiving device in the vehicle and an inductively from the outside inductively coupling means are provided ,
  • the nominal voltage or operating voltage of the on-board network corresponds to avoid the problem when connecting parallel voltage sources with different voltage.
  • start-up systems that are additionally connected in case of failure of the starting function of an internal combustion engine
  • fixed-mounted starting systems for improving the starting power are known in which in addition to the on-board battery, a second energy storage, i.a. a high-performance memory based on double-layer capacitors is used.
  • a second energy storage i.a. a high-performance memory based on double-layer capacitors is used.
  • These starting systems e.g. described in US 5,818,115, DE 10 2004 016 292 A1, DE 196 01 241 A1 and DE 41 35 025 A1, also have in common that the additional energy storage has the same rated voltage as the memory still required for the energy supply of the electrical system.
  • DE 10 2004 032 197 A1 and DE 196 01 241 A1 and DE 197 09 298 A1 disclose a starting system, in contrast to a start-up aid system, in which the energy store used primarily for the starting process has a higher voltage.
  • the performance of the second, for the Onboard energy storage responsible is either not used during the boot process or only to the extent that allows the performance of a DC / DC converter for voltage adjustment, or it is only possible when the voltage of the memory with high rated voltage to the voltage level of the second Energy storage drops.
  • EP 1 424 494 A1 which describes a hybrid drive system for the common application of drive torque from two different memories with very different nominal voltage
  • the power of the two memories is not connected in parallel, as long as the voltages are different, but over one, the Power limiting DC / DC adjuster, which causes additional costs and additional weight.
  • the requested electric power of the starter depends on the one hand on the design of the internal combustion engine, ie displacement, gasoline / diesel engine, etc., and on the other of the environmental conditions, such as temperature, oil, the previous resting phase, etc., dependent. Furthermore, the electrical resistance between battery and starter terminals must be considered.
  • a lower limit voltage must not be undershot during the starting process, so that the engine control remains functional.
  • the vehicle electrical system voltage must thus always be above this limit even during the starting process.
  • the battery for some vehicles before starting for a few seconds a high power for some startup required functions is taken, such as over 100 A for preheating a diesel engine or about 50 A for the engine control unit and other control units.
  • a startup assistance system must be able to deliver a certain minimum energy without significantly reducing the starting power. It is known that in principle the maximum power that can be delivered by batteries and double-layer capacitors is reached when the internal resistance and the load resistance are equal. However, it should be noted here that, especially with batteries, the internal resistance depends on the current.
  • the internal resistance changes during the startup process.
  • the differences in internal resistance depend on the age of the battery and the importance of diffusion and transport processes. These can significantly increase the internal resistance within one second.
  • the resistance of the starter motor (load resistance) is significantly influenced by the induced by induction counter tension of the starter motor, which in turn is speed dependent. Furthermore, this is influenced by the fluctuating torque requirement of the internal combustion engine in the compression and expansion phases. It is therefore not possible to operate the battery during startup always at the point of maximum power output. It is also to distinguish between the point of maximum power output at the start of the starting process (breakaway torque) and the maximum power output during the startup process.
  • the load resistance of the starter at standstill is given by the ohmic resistance of the windings and very low (in the range of about 2 milliohms to 5 milliohms).
  • the usually used in the vehicle battery is thus operated at the start of the boot almost in the short circuit and near the maximum power point and the terminal voltage is well below the rated or operating voltage at about 8 - 10 V.
  • an optimal power adjustment internal resistance of Battery equal load resistance (sum of all line resistances, including cable and starter windings)
  • the reverse voltage generated by induction is converted into a current-dependent or speed-dependent load resistance approx. 10 to 50 milliohms (m ⁇ ) and is thus much higher than at the beginning of the starting process.
  • the maximum power of the battery used could then be removed if the internal resistance of the battery at the respective currents flowing corresponds to the load resistance, that is to say the resistance of the starter during the starting process.
  • the internal resistance of a conventional lead-acid battery with 12 V nominal voltage is significantly lower in design and technology due to the currents flowing during the starting process, so that the battery does not output its maximum power and is significantly oversized and too heavy for the starting process.
  • a lightweight portable startup device that can provide a high starting current for a few seconds, wherein the peak current required within the first approximately 0.1 second need not be fully provided by a start-up aid system, since an existing (lead starter ) Battery can also provide a high current for a short time in the aged state and deep discharge.
  • an existing (lead starter ) Battery can also provide a high current for a short time in the aged state and deep discharge.
  • the possibility of a direct reloading of the auxiliary starting memory after the jump start via the electrical system of the motor vehicle would also be desirable, the charging time should be low.
  • the present invention is therefore an object of the invention to solve the above-mentioned problems and to provide a start-up system that allows a maximum power output of the battery or other energy storage, which flows at about 50% of its nominal voltage, this power can be optimally used and that it can be recharged both via the on-board network and via the public supply network.
  • a start-up assistance system characterized in that at least one internal starting aid memory with a predetermined, also provided below and above the nominal or operating voltage of the electrical system voltage rated voltage and the at least one circuit breaker is automatically switched by a control logic , At the same time with the current flow through an intended for starting electric drive and / or upon detection of a voltage drop below a predeterminable, dependent on the rest voltage of the starter battery threshold, the internal starting assistance memory for assisting in the power requirement during the startup to the starter battery is connected in parallel or switched ,
  • the object is achieved in that when connecting one or the jump start system to the electrical system of a vehicle, the vehicle electrical system voltage is measured at rest, a control logic of the starting assistance system is powered, the time for switching on the voltage of the auxiliary starting memory falls below a predeterminable threshold based on the voltage measured during clamping vehicle voltage reduced by an occurring voltage jump of n volts calculated or signaled by receiving a
  • a start assist system in which by providing the Start Decorated Grande, a start assist system is created, in which by providing the Start Decorated Grande, a start assist system is created, in which by providing the Start Decorated Itemss parallel to the starter battery this in the power requirement during a boot process or during the boot-initiating functions required by the operation. Discharging the booster battery and charging the starter battery before starting the boot process is prevented by the targeted connection, so that no unwanted charge balance between the memories occurs.
  • the nominal voltage of the internal auxiliary starting memory can differ significantly from the nominal or operating voltage of the vehicle electrical system.
  • the parallel connection of internal starting aid storage and starter battery takes place at very different voltages of both energy storage without previous voltage adjustment. This is an advantage that the prior art systems do not have.
  • the term "at the same time” not only means an absolutely simultaneous connection, but is also regarded as a simultaneous connection, in which a time delay for detecting a voltage dip is taken into account and in which there is a time delay due to the required computing time of a microcontroller
  • To trigger the switching of the circuit breaker is the signal of detecting a voltage dip as well as the activation with a signal from the engine control.
  • a load jump or voltage jump can be detected. It is also possible to query a corresponding signal of an engine control unit and in response thereto switch on the starting assistance memory.
  • a connection of the startup memory is in each case only when it is really necessary, a shutdown after the boot process. Compensating charges between the starter battery and the auxiliary battery in the form of the auxiliary starting memory are therefore not available.
  • the starting aid memory can be recharged via the vehicle electrical system to a specified end-of-charge voltage by closing the circuit breakers and direct recharging without a DC / DC controller or by recharging via an internal DC / DC controller with the circuit-breaker open.
  • the starting aid system also switches several times on and off; so that whenever the lower or upper threshold is reached, the power supply or the start assistance is turned on or interrupted. An interruption of the power or voltage supply can alternatively be done after a predetermined period of time.
  • the voltage of the auxiliary starting memory and the rated or vehicle electrical system voltage of the vehicle may differ considerably.
  • a rated voltage of at least about 10 V be useful in double-layer capacitors, for example, three double-layer capacitors can be provided with a nominal voltage of about 2.5 to 2.7 V, respectively.
  • the principle of performance adjustment can no longer be used.
  • the rated voltage and / or operating voltage of the auxiliary starting memory it would also be possible for the rated voltage and / or operating voltage of the auxiliary starting memory to correspond to the nominal voltage and / or operating voltage of the vehicle electrical system battery.
  • a starting aid battery or a starting aid memory with a higher rated voltage than is now commonly used so that the required power can be provided with a smallest possible battery.
  • the voltage limits during startup can still be met. If e.g. a battery with 18 V operating voltage and an internal resistance, which corresponds to the load resistance of the starter during startup, is used, the output voltage of the battery or the auxiliary starting memory during startup is about 9 V and the startup process can be performed easily.
  • the voltage of the Start Huaweiiquess with batteries is chosen so large that the optimum charging voltage of the booster battery is about twice as high as the vehicle electrical system voltage while the alternator is running.
  • the memory is made up of a series connection of individual cells with a defined internal resistance. The aim should be to choose the number of cells so that the internal resistance and the load resistance have an equal value, so that a Power adjustment with maximum output power and minimum losses is achieved.
  • a starting aid memory with an unusual rated or operating voltage is used, in particular a battery or a double-layer capacitor, with a nominal voltage of at least approximately 10 V.
  • the capacity of the starting aid battery can amount to at least approximately 2 Ah, in particular 2 to 10 Ah, in particular 6 to 7 Ah. Even a capacity of just under 2 Ah is possible in principle, but usually capacity values of more than 2 Ah will be used.
  • a nickel-metal hydride battery When a nickel-metal hydride battery is used, it may have, for example, a capacity of about 6.5 Ah and an internal resistance of about 1.3 to 1.6 m ⁇ per cell after a millisecond discharge with a discharge current in the range from about 600 to 800 A. ,
  • the internal resistance of the auxiliary starting memory is chosen or selected so that the internal resistance of the auxiliary starting memory corresponds approximately to the internal resistance of the starter in the operating state of a start.
  • the total voltage of the booster battery in the idle state can advantageously be about twice as high as an optimum voltage occurring during the starting process. Regardless of the rated voltage thus has the starting aid memory required for a starting operation on internal resistance area and the electrical system of the vehicle, the jump start is given, can be protected from a nominal voltage outside the permissible range.
  • a control device which controls the connection of the internal start-up memory of the jump start system to the electrical system, so that both batteries or storage, the on-board battery and the starting aid memory, are operated in parallel only during load time. Problems due to the design of the batteries or memory with different voltage can be avoided because due to the low load resistance and the then flowing from both memories currents the common voltage of both energy storage in the allowable voltage range remains. Separating diodes, which prevent a current flow from the auxiliary starting memory with its higher voltage in the electrical system battery with its lower voltage, and which are described in the above-described references of the prior art, are not required under the selected internal resistance conditions. The resulting costs as well as their additional internal resistance can be avoided.
  • the object can also be achieved by a method in which, with a favorable choice of the rated and operating voltage of the auxiliary starting memory, especially if it is below the operating voltage of the electrical system battery, the control logic and the switch operated by it by a passive Component, eg a diode, to be replaced.
  • the function of the control logic and the switch operated by it may thus be controlled by a passive semiconductor switch, e.g. a diode, which only becomes conductive when the voltage of the auxiliary starting memory is above the voltage of the starter battery, which is greatly reduced during the starting process.
  • a diode is connected between a starting aid memory with an operating voltage below the usual electrical system voltage in the idle state and the electrical system, which then allows a flow of current from the starting aid memory, if the vehicle electrical system voltage due to the voltage drop during startup under the voltage of the startup auxiliary memory sinks.
  • the task for a method for starting assistance in a vehicle can be achieved in that the starting assistance memory is manually switched on at low vehicle electrical system voltage or by connection to the Anlagenelektrik is automatically switched on when the starting process of the vehicle is actuated.
  • a boot process via the external start assist system without a built-in system battery is usually not provided, since the vehicle should remain functional after the startup and then running engine even after disconnecting the Jump Start system. This would not be possible without a battery in the vehicle. Further demands on the performance and voltage of the built-in system battery are not set up here.
  • the protective circuit comprises at least one resistor or a diode, via which the starting aid memory is discharged or discharged starting at a predefinable voltage which is above the voltage to be expected during operation of the vehicle electrical system voltage and the load of the vehicle electrical system.
  • the protective circuit is advantageously made of a diode, so that is shorted at a voltage exceeding the inadmissible current through this device.
  • the protective circuit is advantageously connected hard with the output terminals of the starting aid system, so it is always active. Advantageously, it is not engaged when loading the Start Huawei Boulevards. If a continuous load of this protective circuit acting as a bypass is not possible, advantageously an acoustic warning message can be issued, which prompts for disconnecting the starting aid system.
  • At least one device for smoothing the voltage is provided in the case of frequent switching operations by the control logic, in particular in the case of manual activation of the starting aid memory.
  • a smoothing device may e.g. be a smoothing capacitor.
  • An activation of a permanently installed start-up assistance system can take place simultaneously with the activation of the starter motor by the engine control.
  • a Activation of the starter assist system as an external device which is only connected in parallel to the vehicle power supply battery during startup problems, can take place when a load jump is detected by a voltage jump. Therefore, a device for detecting a load jump is advantageously provided, which is advantageously encompassed by the control logic and which emanates from the measured before the start of the vehicle electrical system voltage and switching on or Leitendinate a circuit breaker.
  • the booster battery is automatically connected via the circuit breaker and disconnected, so that a startup process via the Start Huawei Grande and a reload of this is done automatically by the on-board battery.
  • the starting aid battery can also be configured manually switchable when a load jump can not be detected and / or when the vehicle electrical system voltage is so low that the starting process of the vehicle by its control units is no longer einleitbar.
  • the jump start memory can also be automatically connected when connected to the vehicle control via the vehicle control upon application of a signal to start the engine.
  • the starting aid storage can be connected in parallel to the battery of the vehicle and, in particular, disconnected from the battery of the vehicle if the vehicle electrical system voltage rises above a predefinable limit value when the vehicle engine is running. Because at this time the jumper terminals have the same voltage as the on-board battery, there is no sparking when disconnected. Incidentally, no sparking occurs even when connecting the booster with the electrical system, since the terminals of the booster are de-energized. A protection against reverse polarity is automatically ensured by the control unit and the sequence when connecting and disconnecting is not relevant.
  • a circuit arrangement for directly charging the start-up memory in particular two halves of the start-up auxiliary memory or the starting aid battery, provided via the electrical system.
  • the starter assist system can advantageously be connected directly to the starter battery of the vehicle for recharging or remain connected after completion of the jump start, so that recharging takes place via this. There are no discharge and no equalization currents, so that consequently no problems when connecting and disconnecting occur.
  • the jump start memory can advantageously via an external Voltage source or an external charger that provides the desired charging voltage, or be recharged.
  • an internal charger may be provided for charging the start-up memory.
  • the charging power is advantageously designed so that in a short time, for example, about one minute, the charge taken in the jump start charge is again largely loaded into the starting aid memory, ie the charging current is for example a few 10 amps.
  • the separation of the starting aid memory in two halves, which can be loaded in parallel with half of the otherwise required voltage, is advantageous for direct charging via the electrical system.
  • the two halves of the Start Vietnamese acidss can be connected to each other via at least one switch and with the electrical system battery via other switches.
  • the one switch can be identical to the circuit breaker of the start assist system, which can be switched on via the control logic.
  • the switch may also be identical to the switch of the starter motor, which connects the starter motor during startup with the electrical system.
  • At least one device can be provided for evaluating the data of the start-up assistance system for assessing the onboard power supply battery. About such an evaluation can be quickly and easily determined whether, if necessary, the electrical system battery is damaged and, if necessary, must be replaced or whether a short circuit in the electrical system is present.
  • a data logger is advantageously designed as an independent unit of the start-up assistance system in order to be able to evaluate data and to be able to record further data even after the starting process and disconnection of the start-up assistance system. With a connected start-up assistance system, if necessary, an engine hood of a vehicle can no longer be closed, which is why the start-up assistance system should be removed in order to drive the vehicle into a workshop or other location.
  • the datalogger measures the voltage of the vehicle electrical system and stores it with a high temporal resolution, such as 1 kHz. It can be switched on manually and either begins to save the data by means of another manual intervention or it starts to save as soon as the voltage changes by more than a predefinable value, eg 0.5 V when switching on control units. For this purpose, a corresponding query and evaluation of the voltage values is provided.
  • the starting aid system is modular. Depending on the type of vehicle, the integrated starting aid memory can be individually adapted with regard to energy content, continuous power output, peak power, voltage, temperature behavior, etc.
  • the other components of the start-up assistance system can be used independently of the start-up assistance store in all embodiments of start-up assistance systems.
  • the housing With regard to the structure of the starting aid system, it proves to be advantageous to make the housing so that it is designed in the manner of a cover, which is in particular adapted to shape, can be placed on the weak electrical system battery. In case of an explosion there would be protection against splinters.
  • 1 shows a diagram with internal resistances of different NiMH modules with 6 cells at different current amplitudes
  • FIG. 2 shows a schematic illustration of the structure and the coupling of a starting aid according to the invention to a vehicle electrical system
  • FIG. 3 shows a diagram showing the voltage curve during a starting process (low-level battery) with indicated switching thresholds (U1, U2) of the starting assistance system,
  • 4a, 4b is a schematic representation of a direct charge circuit for recharging the booster battery, wherein the state of the circuit breaker between the on-board battery and the two halves of the booster battery during the startup process ( Figure 4a) and during the recharge ( Figure 4b) are shown
  • FIG. 5a, 5b is a schematic representation of a start-up procedure (FIG. 5a) and a charging process (FIG. 5b) for recharging the starting aid battery, wherein the state of the power switches between the onboard power supply battery and the two halves of the starting aid battery during the starting process (FIG. 5a) and during the recharging (FIG. 5b), and FIG. 6 shows a schematic representation of a device according to the invention
  • Figure 1 shows a diagram showing the internal resistances of various nickel-metal hydride modules with six cells at different current amplitudes. Values up to approx. 200 A represent the usual field of application for modules of hybrid vehicle applications.
  • the six cells of the nickel-metal hydride modules have a nominal voltage of 7.2 V in the example shown.
  • nickel-metal hydride modules or batteries having a capacity of approximately 6.5 Ah in the range of approximately 600 A have an internal resistance of approximately 1.3 to 1.6 m ⁇ per cell after one millisecond Have discharge. After one second, the value increases to approx. 2 to 2.3 m ⁇ per cell.
  • FIG 2 shows schematically the structure of a starting aid system 10 according to the invention, which can be connected to an electrical system 11 of a motor vehicle, including a starter, and a starter battery 12, when the starting process with the built-in electrical system battery alone can not be performed successfully.
  • the starting aid system 10 comprises a control logic 1 and an internal starting aid memory 2, for example, with a rated voltage above 12 V, which can be connected in parallel with the starter battery to assist in the power request during the startup process.
  • the switch-on and switch-off thresholds or criteria for the internal start help memory can be specified exactly to the control logic, so that the switching thresholds for the memory technology used can be adjusted accordingly.
  • the switching thresholds are dynamically changeable by the logic unit or control logic depending on the terminal voltage of the electrical system.
  • a schematic representation of the voltage curve during a starting operation of a weak battery can be seen together with the switching thresholds LM and U2 of the starting aid system in FIG.
  • control logic 1 is supplied with power by the starting aid memory 2. Therefore, the control logic 1 is provided with a switch or circuit breaker 7 for manually disconnecting the control logic of the starting aid memory 2, so that the starting aid memory in the form of a battery is not discharged at a standstill.
  • the start-up assistance system comprises a data logger 4, which is integrated between the starter battery and the control logic.
  • This data logger can be designed as a separate unit that can be separated from the other components of the startup assistance system.
  • Current, voltage and possibly temperature values can be recorded via this data logger 4 and stored with high temporal resolution, eg with a resolution of 1 kHz.
  • the data stored in the data logger 4 data can be read, for example via a USB port.
  • An evaluation can be made via a normal PC, which is not shown in Figure 2.
  • the start-up assistance system also has a 12 V vehicle electrical equipment 6.
  • this is not essential.
  • the 12 V onboard power supply device can generate a required vehicle electrical system voltage in the permissible range instead of the starting aid memory or in addition to this.
  • the onboard power supply 6 can be connected via a switch 8 to the electrical system 11.
  • the internal starting aid memory 2 usually has a different terminal voltage than the starter battery 12.
  • the voltage will be above the vehicle electrical system voltage, so that they can be operated in the range of their maximum power.
  • DSC double-layer capacitors
  • a lower voltage can be used to minimize the cost of the double-layer capacitors.
  • a voltage which is significantly above the maximum permissible vehicle electrical system voltage is usually not possible since very large double-layer capacitors close to the short circuit initially show only a small voltage dip.
  • the starting aid memory 2 normally has a significantly higher rated voltage than the vehicle electrical system.
  • the voltage of the auxiliary starting memory 2 will be in the range of about 20 V to about 26 V.
  • 20 V are provided by eg 15 NiMH cells with a rest voltage of about 1.32 V / cell
  • 26 V are realized by eg 18 NiMH cells with a voltage of about 1.45 V / cell, measured a short time after disconnection from the charge sustaining voltage.
  • the values are twice as high, that is, at about 40 V to about 52 V.
  • a protective circuit is provided (not visible in FIG. 2) which starts at a predefinable voltage which exceeds the expected during operation vehicle electrical system voltage and the consumer On-board network damaging voltage is, for example a voltage of about 15 V, the starting aid memory, e.g. a battery, discharges through a resistor.
  • the starting aid memory e.g. a battery
  • a Zener diode may be provided, which becomes conductive from a certain voltage.
  • Such a device may be a DC / DC converter, which uses the voltage of the electrical system, as soon as the electrical system has a voltage above about 13V.
  • a plug-in power supply or a conventional charger can be used as a device, the cigarette lighter of a vehicle and a DC / DC converter or a 240 V socket, a plug-in power supply or a conventional charger can be used.
  • the control logic monitors the charging process and releases the DC / DC converter. An overload of the memory is also prevented by the control logic.
  • the charging can also take place directly through the vehicle electrical system battery 16, as outlined in FIGS. 4a and 4b.
  • a circuit breaker 13 is inserted between the two halves of Start Decorate Grandes. This is closed during the starting process for connecting the two halves 20, 21 of the booster battery or the memory ( Figure 4a) and is for the reloading process opened ( Figure 4b).
  • the switch 13 corresponds to the switch 7.
  • Two other circuit breakers 14, 15, the two halves 20, 21 of the start-up memory 2 are connected to the electrical system battery at the two ends or poles.
  • the two circuit breakers 14, 15 are open during startup and are closed for reloading.
  • the vehicle electrical system voltage rises very quickly to over 13 V, so that then the booster battery can be charged.
  • FIGS. 5a and 5b correspond in principle to FIGS. 4a and 4b.
  • the starter motor 17 is shown in addition to the structure in FIGS. 4a and 4b, as is the internal resistance 18 of the vehicle electrical system battery 16.
  • the starter motor 17 is in each case parallel to the series connection of the two halves 20, 21 the booster battery and the circuit breaker 13 switched.
  • the starting assistance system is thus installed in the immediate vicinity of the starter motor 17 and loads the vehicle electrical system battery 16, so that they only have to deliver a comparatively small proportion of electricity during the starting process.
  • the power switch 13 may also be identical to the magnet switch of the starter motor, which is actuated via the engine control unit or the ignition key for switching on the starter motor.
  • FIG. 6 shows this variant.
  • the power switch 13 is formed as a magnetic switch and has a coil 19 for actuating the magnetic switch.
  • a parallel to the power switch 15 provided diode 22 is provided only in the event that the coil 19 of the magnetic switch 13 of the starter motor 17 and all other consumers of the circuit are not sufficiently high impedance, so for example, about 50 m ⁇ below, corresponding to a load current of 60 A. ,
  • the two power switches 14,15 for charging the two halves 20,21 of the booster battery can also be looped into the circuit for actuating the magnetic switch 13.
  • the charging voltage of a NiMH battery is for example in the range of 1, 4 to 1, 6 V / cell, ie in a nine-cell battery with a rated voltage of 10.8 V at a vehicle electrical system voltage between 12.6 and 14.4 V.
  • the advantage of in Figure 4a, b outlined charging circuit is that this does not require a DC / DC converter and thus is easier and cheaper.
  • the recharging of the auxiliary starting memory takes place immediately after the end of the starting process until the starting aid system is disconnected.
  • the charging circuit also has the advantage that standard chargers can be used for 12 V vehicle electrical systems.
  • the current of the starting aid memory is also advantageous to measure the current of the starting aid memory by the voltage drop across the circuit breakers 7 or 13, so that without additional components of the data logger can detect the power of the booster, and / or the battery current through a clamp meter.
  • the determination of the charging and discharging current is possible here in order to enable a monitoring of the state of charge, which is calculated via the current integral.
  • the starting aid memory can be used.
  • the smoothing capacitor can be charged to a voltage necessary for the initiation of the starting process voltage, for example 10 V.
  • the voltage will fluctuate relatively high for small and inexpensive capacitors. It is therefore also possible to use a small replacement battery, namely the onboard power supply unit 6, if the engine control units do not work properly with such high and large voltage fluctuations, even if they are within the permissible voltage range.
  • This replacement battery is capable of supplying a sufficiently high current for a short time, eg 10 seconds, eg a current of about 50 amps without the on-board voltage dropping below the voltage level at which the controller turns off.
  • 10 series-connected 2.5 Ah high-rate NiCd or NiMH cells or a 12V lead-acid battery in the capacity range of approx. 2-6 Ah or a small lithium battery (3 cells) are already sufficient for this purpose. From the voltage curve of the vehicle electrical system during and after the starting process can already be concluded without current measurement, but better with current measurement, on the state of the electrical system battery. If the voltage of the generator increases to the set voltage value of the electrical system, then it can be assumed that the charging capacity of the battery is low and it is sulphated.
  • Such a voltage jump or break is associated with a high current load of the electrical system battery, as it exists during the starting process.
  • the voltage supply is interrupted again, so the start assist system off as soon as the voltage is above a voltage U2, for example, of about 13 V, but at the latest after a predetermined time, such as 5 seconds.
  • the respective switching thresholds can be specified by the manufacturer, as can the time values, so that an adaptation to any on-board network topologies and starting aid memory is possible.
  • the voltage and Time values are no longer changed by the user, so that no damage to the electrical system of the vehicle by an incorrect setting of the values occur. Basically, however, a user-side adjustability of the voltage and time values can be provided.
  • the switch 7 can be operated manually, so that the starting assistance memory 2 is switched to the electrical system.
  • the vehicle electrical system voltage then rises immediately steeply and the switch 7 is operated via the control logic 1 so that the vehicle electrical system voltage remains in a likewise predeterminable voltage range, for example, a range between about 8 V and about 12 V.
  • the power switch 7 should conduct high currents with low loss and be inexpensive, which is why the use of eg a MOSFET proves to be suitable. Losses when switching on and off can usually be neglected. Because of the maximum low duty cycle of eg 5 seconds no special cooling is needed.
  • a particularly favorable structure results in the provision of a parallel connection of MOSFETs, since then also modules with a maximum current of well over 1000 A can be built by simply connecting several MOSFETs in parallel using a driver.
  • the start-up assistance system is placed on the battery to be started, e.g. with a shape-adapted housing, it is possible to make the cables used 5 for the connection of the start-up assistance system to the electrical system and the starter battery or vehicle power supply very short, e.g. to be provided with a length of about 30 cm.
  • cables can advantageously be saved and inductive overvoltages, which can have a negative effect on the electrical system, be avoided. Due to the small length, the cables can be relatively thin.
  • starting assistance systems and methods for starting aid can be formed numerous other, in each of which at least one circuit breaker, in particular semiconductor switches and at least one internal starting aid memory are provided, the starting auxiliary memory connected in parallel to the starter battery of the vehicle is or can be switched.
  • the nominal voltage or operating voltage of the auxiliary starting memory is higher than usual and differs in particular from the vehicle electrical system voltage.
  • the starting aid system described here can completely replace a starter battery, for example in vehicles in which, in addition to a vehicle power supply battery, a starter battery used only for the starting process is used, or in emergency power systems.
  • a DC / DC converter in combination with a small battery which does not have to be designed for high starting power, in this case provides for the stabilization of the low voltage electrical system and the starting process of the internal combustion engine is using a modified Version of the start assist system presented here.
  • the start assist system described here in the immediate vicinity of the starter motor can be permanently installed and load the onboard power supply battery, so that they only have to deliver a relatively small proportion of electricity during startup.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

L'invention concerne un système d'aide au démarrage (10) pour un véhicule, comprenant au moins un accumulateur interne d'aide au démarrage (2) avec une tension nominale prédéterminée. L'accumulateur interne d'aide au démarrage (2) est ou peut être commuté en parallèle avec la batterie de démarrage (12) du véhicule afin de fournir une assistance face à la puissance demandée pendant le processus de démarrage. Le système d'aide au démarrage (10) est commandé automatiquement en fonction du résultat de l'analyse du processus de démarrage. Dans un procédé d'aide au démarrage d'un véhicule, la tension du réseau de bord du véhicule est mesurée lors du raccordement d'un ou du système d'aide au démarrage (10) au réseau de bord d'un véhicule, une logique de commande (1) du système d'aide au démarrage (10) est alimentée en courant, l'instant de commutation de la tension de l'accumulateur interne d'aide au démarrage (2) est calculé à partir de la tension du réseau de bord mesurée lors de la connexion en le réduisant d'un saut de tension de n volts, et la fourniture de tension est interrompue dès que la tension du réseau de bord dépasse une tension prédéterminée (U2).
PCT/EP2010/000687 2009-02-04 2010-02-04 Système d'aide au démarrage pour un véhicule Ceased WO2010089113A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10704321A EP2394050A1 (fr) 2009-02-04 2010-02-04 Système d'aide au démarrage pour un véhicule

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009007545.3 2009-02-04
DE102009007545A DE102009007545A1 (de) 2009-02-04 2009-02-04 Starthilfesystem

Publications (1)

Publication Number Publication Date
WO2010089113A1 true WO2010089113A1 (fr) 2010-08-12

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9431180B2 (en) 2011-04-12 2016-08-30 Audi Ag Energy storage arrangement

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013226155A1 (de) * 2013-12-17 2015-06-18 Continental Automotive Gmbh Vorrichtung zum Schutz mindestens eines Energiespeichers eines Fahrzeugs sowie Starthilfekabel, elektrischer Energiespeicher und Fahrzeug mit einer solchen Vorrichtung
US20160233662A1 (en) * 2015-02-06 2016-08-11 Mathew Inskeep Jump Starter Auto Safety Jumper Module
CA3073575C (fr) * 2017-09-22 2023-02-28 The Noco Company Dispositif de demarrage de secours a batterie rechargeable dote d'un systeme de retroeclairage a commutateur de commande
CN114421575A (zh) * 2022-03-02 2022-04-29 深圳市正浩创新科技股份有限公司 多电池包的电量管理方法、装置和电源设备

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4135025A1 (de) 1990-10-25 1992-04-30 Magneti Marelli Spa System zum anlassen einer brennkraftmaschine fuer kraftfahrzeuge
DE4340350A1 (de) * 1993-11-26 1995-06-01 Audi Ag Schaltungsanordnung für ein Kraftfahrzeug
DE19601241A1 (de) 1995-01-17 1996-07-18 Fuji Heavy Ind Ltd Motorstartanlage für Kraftfahrzeug
DE19709298A1 (de) 1997-03-06 1998-09-24 Isad Electronic Sys Gmbh & Co Startersysteme für einen Verbrennungsmotor sowie Verfahren zum Start eines Verbrennungsmotors
US5818115A (en) 1995-07-17 1998-10-06 Nippondenso Co., Ltd. Starting and charging apparatus
DE29909348U1 (de) 1999-05-28 1999-08-12 Hauck, Erich, Dipl.-Ing., 76287 Rheinstetten Tragbarer 12 VDC / 230 VAC Batterie-Energiespeicher mit integriertem Wechselrichter und Wiederaufladeregeleinrichtung für Solar- und Windgeneratoren
US6212054B1 (en) 1999-09-21 2001-04-03 Powerpro Inc. Spark proof booster cable system
DE10049321A1 (de) 2000-10-05 2002-04-11 Hella Kg Hueck & Co Vorrichtung zur externen Spannungseinspeisung
US6373152B1 (en) * 1999-12-17 2002-04-16 Synergy Scientech Corp. Electrical energy storage device
DE19951094C2 (de) 1999-10-23 2002-04-18 Daimler Chrysler Ag Verfahren und Vorrichtung zur Sicherung eines eine Batterie enthaltenden Netzes
EP1424494A1 (fr) 2002-11-27 2004-06-02 Continental ISAD Electronic Systems GmbH & Co. oHG Dispositif de propulsion hybride et méthode pour l'application commune d'un couple de propulsion
DE102004032197A1 (de) 2003-07-03 2005-02-24 Remy Inc. (N.D.Ges.D. Staates Delaware), Anderson Leistungsmodul für Kraftfahrzeuge
DE102004016292A1 (de) 2004-04-02 2005-10-20 Man Nutzfahrzeuge Ag Schaltungsanordnung und Verfahren zum Steuern einer Starter- und Energieversorgungsanlage eines Kraftfahrzeuges
US20070113814A1 (en) * 2005-11-21 2007-05-24 Goro Tamai Method of starting a hybrid vehicle
DE202007004272U1 (de) 2006-03-27 2007-06-06 Hess, Axel Tragbares Mehrzweckstartergerät
WO2008124342A1 (fr) * 2007-04-04 2008-10-16 Cooper Technologies Company Procédés et systèmes d'alimentation en puissance d'une charge

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004062939B4 (de) * 2004-12-28 2019-02-21 Volkswagen Ag Verfahren und Vorrichtung zum optimierten Starten eines Verbrennungsmotors
DE202006015805U1 (de) * 2006-04-01 2007-04-19 Kromberg & Schubert Gmbh & Co. Kg Starthilfegerät

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4135025A1 (de) 1990-10-25 1992-04-30 Magneti Marelli Spa System zum anlassen einer brennkraftmaschine fuer kraftfahrzeuge
DE4340350A1 (de) * 1993-11-26 1995-06-01 Audi Ag Schaltungsanordnung für ein Kraftfahrzeug
DE19601241A1 (de) 1995-01-17 1996-07-18 Fuji Heavy Ind Ltd Motorstartanlage für Kraftfahrzeug
US5818115A (en) 1995-07-17 1998-10-06 Nippondenso Co., Ltd. Starting and charging apparatus
DE19709298A1 (de) 1997-03-06 1998-09-24 Isad Electronic Sys Gmbh & Co Startersysteme für einen Verbrennungsmotor sowie Verfahren zum Start eines Verbrennungsmotors
DE29909348U1 (de) 1999-05-28 1999-08-12 Hauck, Erich, Dipl.-Ing., 76287 Rheinstetten Tragbarer 12 VDC / 230 VAC Batterie-Energiespeicher mit integriertem Wechselrichter und Wiederaufladeregeleinrichtung für Solar- und Windgeneratoren
US6212054B1 (en) 1999-09-21 2001-04-03 Powerpro Inc. Spark proof booster cable system
DE19951094C2 (de) 1999-10-23 2002-04-18 Daimler Chrysler Ag Verfahren und Vorrichtung zur Sicherung eines eine Batterie enthaltenden Netzes
US6373152B1 (en) * 1999-12-17 2002-04-16 Synergy Scientech Corp. Electrical energy storage device
DE10049321A1 (de) 2000-10-05 2002-04-11 Hella Kg Hueck & Co Vorrichtung zur externen Spannungseinspeisung
EP1424494A1 (fr) 2002-11-27 2004-06-02 Continental ISAD Electronic Systems GmbH & Co. oHG Dispositif de propulsion hybride et méthode pour l'application commune d'un couple de propulsion
DE102004032197A1 (de) 2003-07-03 2005-02-24 Remy Inc. (N.D.Ges.D. Staates Delaware), Anderson Leistungsmodul für Kraftfahrzeuge
DE102004016292A1 (de) 2004-04-02 2005-10-20 Man Nutzfahrzeuge Ag Schaltungsanordnung und Verfahren zum Steuern einer Starter- und Energieversorgungsanlage eines Kraftfahrzeuges
US20070113814A1 (en) * 2005-11-21 2007-05-24 Goro Tamai Method of starting a hybrid vehicle
DE202007004272U1 (de) 2006-03-27 2007-06-06 Hess, Axel Tragbares Mehrzweckstartergerät
WO2008124342A1 (fr) * 2007-04-04 2008-10-16 Cooper Technologies Company Procédés et systèmes d'alimentation en puissance d'une charge

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9431180B2 (en) 2011-04-12 2016-08-30 Audi Ag Energy storage arrangement

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DE102009007545A1 (de) 2010-08-05
EP2394050A1 (fr) 2011-12-14

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