SU1225801A1 - Device for monitoring excess of permissible value of vehicle parameters - Google Patents

Description

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The invention relates to instrumentation engineering, in particular, to devices for monitoring exceeding the permissible value of parameters of an automobile, and is intended to signal that the permissible values of monitored parameters are exceeded.

The purpose of the invention is to expand the functionality of the device by increasing the amount of monitored information.

In the drawing of the image Agena functional diagram of the device.

The device for monitoring the transference of the permissible value of the vehicle parameters contains sensors 1-3 of monitored parameters, multistage dividers 4-6 voltage sensors, fixing blocks 7-9

the ratios of the level of permissible value

controlled parameter with sources 10-12 light signal at the outputs. Each of blocks 7-9 contains a controlled generator 13 and an element 14, the first input of which is connected to the output of the controlled generator 13, and the second input of the element 14 and the input of the controlled generator 13 are connected to the corresponding stages of dividers 4-6, moreover, the inputs of all controlled generators 13 are combined with the inputs of the element OR 15 connected to the power supply circuit of the audible alarm 16, consisting of an audio frequency generator 17 17 and a source of sound vibrations 18.

When a controlled oscillator 13 and element 14 are performed on logic elements, these elements are used as voltage comparators with a fixed threshold of operation equal to the input threshold voltage of a logic element having sufficient stability and accuracy of the threshold voltage. If greater accuracy is required to control the parameters, then special voltage comparators are generated at the inputs of the control generator 13 and element 14 and form voltage signals from the outputs of the dividers 4-6.

The controlled oscillator 13 is implemented on logical elements (the generator input is the input of a standard logic element) and is arranged so that when a signal arrives at the input,

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smaller than the input threshold voltage of the logic element is closed and outputs a logical unit at the output, and when a signal exceeds the input threshold voltage, it is excited and outputs pulses with a frequency of about 2 Hz.

The device works as follows.

The parameters of multi-stage divider 4-6 are chosen so that the signal to the input of element 14 comes above the | | switching threshold with a slight increase in the permissible voltage level of the sensor 1-3 (pre-emergency mode), and to the input control my generator 13 - with a significant increase in the permissible level (emergency mode).

If the voltage level on the sensors 1-3 does not exceed the permissible level, then from the outputs of multistage dividers 4-6 to the inputs of AND 14 and the controlled generator 13 signals are received below the response threshold of these elements, therefore, the controlled generator 13 is closed and the output element And 14 - the level of logical zero, while the sources 10-12 light alarm is on, indicating a normal value of the monitored parameters.

If the voltage on one of the sensors 1-3 slightly exceeds the allowable value of the monitored parameter, then the controlled generator 13 remains closed, but the signal at the input of the element AND 14 is above the threshold value of the switching voltage, resulting in one of the sources 10 -12 light signaling, which indicates the need to apply measures to eliminate the malfunction at the first opportunity.

If the voltage on one of the sensors 1-3 significantly exceeds the allowable value, then the signals from the outputs of multistage dividers 4-6 open the controlled oscillator 13, and the output of element I 14 causes voltage pulses with a frequency of about 2 Hz to excite one of the sources 10-12 light signaling. At the same time, the signal from the input of the excited controlled generator 13 enters through the element OR 15 into the power supply circuit of the audible alarm 16, which produces a sound signal with a frequency of the order of 1 kHz, which is formed by the generator 17, the presence of a breaker.

Compiled by A.Petrov

Tehred I.Popovich M.Samborska Proofreader

Order 2025/16. Circulation 647Subscribe

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, Projecto st., 4

Whistled light and sound signals indicate the alarm value of the monitored parameter and the need to take emergency measures to eliminate the fault.

Claims (1)

DEVICE FOR CONTROL OF EXCEEDING VALUE OF VEHICLE PARAMETERS, containing sensors of monitored parameters with sensors voltage dividers connected to their outputs, blocks for exceeding the permissible value of the monitored parameter with light signal sources at the output, the OR element, the output of which is connected to the sound signaling device, characterized in that, in order to expand functionality by increasing the amount of controlled information, voltage dividers Ikov made multistage, and each fixing block level exceeding the allowable value of the controlled parameter includes a controllable oscillator and AND gate having a first input connected to the output manageability _with direct generator and the second input of the AND-controlled oscillator and an input connected to the corresponding stages of the divider voltage sensor, moreover, the inputs of all controlled generators are combined with the inputs of the OR element. SUnn 1225801>