WO2010018019A1 - Method for providing information to a driver of a vehicle - Google Patents

Abstract

A parameter (12), which corresponds to a current driving behaviour, is compared to an associated reference value (14) in order to provide information to a driver of a vehicle, in particular of a motor vehicle, relating to his driving behaviour. Resulting information (16) ascertained on the basis of this comparison is output, in particular displayed.

Description

ROBERT BOSCH GMBH, 70442 Stuttgart

Method for informing a driver of a vehicle

The invention relates to a method for informing a driver of a vehicle, in particular of a motor vehicle according to the preamble of claim 1. The invention further relates to a navigation terminal according to the preamble of claim 12.

To inform road users about current traffic news, the so-called Traffic Message Channel (TMC) has established itself. This is used for the transmission of traffic information, such as traffic disruptions. This traffic information is constantly transmitted as so-called non-audio additional information on the radio with the Radio Data System (RDS), which can then be received with a suitable terminal, such as a navigation terminal. Such navigation systems can be used particularly advantageously in order to evaluate the received TMC information, so that, for example, dynamic route guidance can be ensured.

The navigation terminals may be provided in vehicles ex works or retrofitted as a mobile terminal, such as PDAs or smartphones. Due to the high penetration rate, the traffic flow can be influenced in the meantime. In addition to the pure navigation function, the driver with the help of additional information, which are provided in such terminals, also be supported. For example, a warning can be issued in the event of a speed violation or warned of danger points such as bends. Information and support for the driver can also be based on procedures. those who extrapolate the current driving situation with regard to the chosen route into the future. From DE 10 2004 022265 Al, for example, a method is known with which in the currently known navigation terminals, a so-called ecological, route guidance can be calculated, which leads along the one optimized in terms of fuel consumption route. Today, this calculation can also take into account parameters of the respective vehicle used, such as size, type, weight, type of drive or driving style of the driver. Thus, in addition to the knowledge about the road used, vehicle profiles and driver-specific influences can be taken into account for the calculation of this route.

According to the invention it is now proposed to expand the known functionality to current information and warnings to a feedback component, so that the driver is additionally given a feedback on his past driving behavior.

For this purpose, a method is proposed for informing a driver of a vehicle, in particular a motor vehicle, about his driving behavior, wherein a parameter relating to the current driving behavior is compared with an associated reference value. A result information determined from this comparison is output, in particular displayed.

Thus, for example, the current driving behavior or the current driver can be compared with stored reference values. The result of this comparison or a corresponding size can be output in a suitable form, in particular visually displayed. With the output of these values or the visual representation, a contribution can be made to positively influence the driving behavior of the driver. In particular, the driving behavior can be changed, for example, in an ecologically sensible or desirable direction. In a preferred embodiment of the invention, the determined result information is displayed in a display device, wherein, for example, a remote display, a combination instrument or a navigation terminal is suitable. For this purpose, this information can be displayed for example in a map display of the navigation terminal.

The result information can be displayed as a section of the traveled route, taking into account that, depending on the result information, a different output, in particular a different colored display, is selected. Thus, for example, the worn route can be colored differently according to the driving behavior. In this way, it can be achieved that the navigation terminal designed in this way contributes to increasing the readiness for an ecological driving style.

The result information, which can be high, medium or low fuel consumption, for example, can be output in an embodiment of the invention in a map representation of the navigation terminal in the form of differently colored sections optically different borrowed. Furthermore, the output can also be time-sequentially, depending on the road class (BAB, federal or highway) and / or in each case in case of exceeding or falling below a predetermined threshold for the parameter.

As parameters for the assessment of the current driving behavior, for example, the driven speed, the travel time, the fuel consumption and / or the emission of the vehicle can be used. In addition, the torque and / or the respective gear engaged in the vehicle can be used. In a further embodiment of the invention can be used as a parameter and independently or additionally the respective driving behavior or the driver of the driver. In particular, it may be considered whether the driving style was risky or defensive, even or hectic, safe or unsafe or whether traffic rules such as speed limits were adhered to.

In a further development of the invention, the respective prevailing traffic situation, such as flowing or stagnant traffic and / or the prevailing environmental situation, such as rain, snow, black ice, fog, may be taken into account in the comparison of the parameter with the corresponding reference value in order to determine the result information.

You can also use your own past recorded behavior or a recorded value as a reference value.

For carrying out the method, a navigation terminal is proposed, in particular in a motor vehicle, which is suitable for displaying the driving behavior of a driver. The navigation terminal has a comparison device for comparing a parameter on the current driving behavior of the driver with an associated reference value.

With this navigation terminal, the driver can now be given a feedback about his past driving behavior. In particular, a feedback on an ecological, especially fuel-saving driving style can be confirmed. With a timely presentation in the map of the navigation terminal, the driver can thus adapt his behavior at short notice and recognize the result directly.

Further advantages and advantageous embodiments of the invention are the subject of the following figures and their parts of description. They show in detail: 1 shows schematically the sequence of the method according to the invention

FIG. 2 shows schematically a map representation of a navigation terminal. FIG

Fig. 1 shows schematically the basic sequence of the method according to the invention. In this case, at least one parameter 12 is initially detected, with which the current driving behavior or the driving style of the driver can be characterized. In particular, the parameters 12 may be the currently driven speed, the previous travel time, the fuel consumption, the emission levels of the vehicle, the currently engaged gear. But also other parameters can be used. For example, the judged driving style of the driver such as defensive or risky, even or hectic, safe or uncertain, exceeding or significantly below speed limits.

The at least one determined parameter 12 is compared with a reference 14, preferably stored in a suitable memory. Suitable reference values are, for example, average values or limit values of identical or similar vehicle types and engine types. Likewise, personal values of the respective driver may be used as reference values 14 or included in the calculation of a reference value 14. Furthermore, it is possible to specify as the reference value 14 a specific target value, in particular a maximum fuel consumption or a maximum permissible emission value. For example, this reference value 14 may be a recorded average value, a typical default value or an ideal value for the determined parameter 12, e.g. For example, the fuel consumption or the speed for a particular route or a specific section. The respective current value of the parameter 12 is compared with the reference value 14. The evaluation, that is the comparison of the parameter 12 with the reference value 14, can take place in different ways with respect to time. Thus, the evaluation can be carried out per section of road, equidistantly or in fixed predetermined time periods, if necessary also with storage of the date. Furthermore, an evaluation is possible depending on the road class, for example, by highway or federal or highway.

From the comparison of the parameter 12 with the reference value 14, a so-called result information 16 can be generated, which is then output as information to the driver.

The determined result information 16 may be, for example, information that results from a comparison of the current speed and travel times used for the route and travel time calculation. Since the described method is now dependent on the present one of the route calculated for the destination, this can always be used as soon as knowledge about the distance traveled in the navigation terminal 10 is present.

The comparison can also take into account further values which are available at the time of measurement of the parameter 12. These values may be, for example, the traffic situation, ie free, flowing traffic, disturbed traffic, faltering traffic or values that result from the environmental situation such as rain, snow or slippery roads. In addition, so-called topological values of the route can be taken into account, resulting, for example, from inclines or gradients of the roadway or possibly the road surface.

Basically, the output can be made to the driver using all the options available in the vehicle. Here, for example, an acoustic signal, a voice output or resort to a simpler display of the result information 16 in a display. Furthermore, it is possible to output the obtained result information 16 in abstract form, eg in a route list or route overview. It is also possible to choose a different type of representation, such as a column diagram, by displaying related portions of the result information 16 in the same colors.

Preferably, however, the result information 16 is output on a navigation terminal 10. In a particularly simple manner, the result information 16 can be reproduced in the representation of a card 24. Because of this, it is possible to assign the result information 16 to a distance traveled and thus to give the driver feedback about his past driving behavior, which is then visually based on the traveled distance in a simple manner.

An example of the representation of the result information 16 in a map 24 of a navigation terminal 10 is shown schematically in FIG. FIG. 2 accordingly shows by way of example a navigation terminal 10 in whose display a card 24 is shown. The already worn-out section 20 seen from the location 18 is shown by round markings 28 in this illustration by way of example. From the comparison of the parameters 12 with the reference values 14 in the worn track parts 20, the result information 16 can be determined. In map 24, this result information 16 is reproduced in that, in addition to the display of the traveled route, certain route sections 22, 25, 26 are optically designed differently.

In the example of FIG. 2, the route section 22 is marked with empty circles, the route section 26 with filled circles and the route section 25 with crossed circles. In this way, the route section 22 as a section of the route that was driven with optimized usage. The section 26, however, was driven with poor fuel consumption. Section 25 was completed with normal fuel consumption. It should be noted that the representation is exemplary and in itself arbitrary. It can be set individually or as standard for each navigation terminal. For example, the result information 16 can also be transmitted to the driver by means of different color design of the individual route sections 22, 25, 26. Specifically, for example, a grid with four colors is suitable, eg "green" for measured value in order, "blue" for there are no measured values, "red" for limit value is exceeded, "yellow" for at the border to the acceptable range. In accordance with this color coding, the route section 22 which has already traveled may turn green, the route section 26 red, and the route section 25 yellow.

With the transmission of the result information 16 is thus achieved that the driver receives information about his current and past driving style. The application of the method is independent of the previous calculation and thus the presence of a destination route, that is, even with inactive route guidance, the information presented to the driver can be transmitted.

Overall, the illustration according to FIG. 2 is to be regarded as exemplary only. Accordingly, other symbols such as triangles, solid lines or the like can be used for the traveled route. In particular, color gradients with continuous color gradients, for example in the representation of velocity precursors along a traveled distance, can also be used. The method according to the invention can accordingly also be used in the case of a tilted representation or in the case of a three-dimensional representation of the card. the. Furthermore, it is also possible to use the method in an abstracted form of the representation of the card.

Claims

claims 1. A method for informing a driver of a vehicle, in particular of a motor vehicle about his past driving behavior, characterized in that a parameter (12) over the current driving behavior with an associated reference value (14) is compared and outputs a determined from this comparison result information (16) , is displayed in particular. 2. The method according to claim 1, characterized in that the determined result information (16) in a display device, in particular a remote display, a combination instrument or in a navigation terminal (10) is displayed. 3. The method according to claim 2, characterized in that the result information (16) in a map display of the navigation terminal (10) is displayed. 4. The method according to claim 3, characterized in that the result information (16) as a route section (22) of the worn route (20) is displayed. 5. The method according to claim 4, characterized in that the result information (16) on the route section (22) is displayed equidistantly, periodically, as a function of the road class and / or when a predetermined threshold is exceeded or fallen short of. 6. The method according to any one of claims 2 to 5, characterized in that a stretch of the departing NEN route (20) depending on the result information (16) is displayed differently, in particular different colors. 7. The method according to any one of claims 1 to 6, characterized in that the comparison and the output of the determined result information (16) takes place independently of an activated or existing route guidance. 8. The method according to any one of claims 1 to 7, characterized in that as parameter (12) over the current driving behavior, the driven speed, the acceleration / braking behavior, the travel time, the fuel consumption, and / or the emission of the vehicle are used. 9. The method according to any one of claims 1 to 8, characterized in that as a parameter (12) over the current driving behavior, the torque and / or the engaged gear are used. 10. The method according to any one of claims 1 to 9, characterized in that are used as parameters (12) on the current driving behavior of the driving style of the driver, in particular risky driving behavior, risky overtaking maneuvers and / or unadapted speed. 11. The method according to any one of claims 1 to 10, characterized in that when comparing the parameter (12) with the corresponding reference value (14) the prevailing traffic situation and / or environmental situation is taken into account, in particular by the reference value (12) is adjusted accordingly by a correction value. 12. navigation terminal (10) in particular in a motor vehicle, which is suitable for displaying the driving behavior of a driver, characterized in that a comparison device for comparing a parameter (12) on the current driving behavior of the driver with an associated reference value (14) is provided ,