SU1348878A1 - Device for checking and monitoring parameters of vehicle engine - Google Patents

Abstract

The invention relates to a technique for automatically adjusting and controlling the parameters of a car engine. The aim of the invention is to improve the accuracy of the device. The device contains an engine rpm sensor, a gas analyzer 4, a vehicle presence sensor 5, an AND 6 element, a delay element 7, an actuating element 8, a pulse generator 9, a frequency divider 10, a counter 11, a decoder 12, a counting trigger 13, registers 14 and 15 and the element OR. The device completely eliminates the influence of subjective factors on the results of the control. 1 il. c (L o: 4 CX) oo 00 a

Description

The invention relates to a technique for automatically adjusting and controlling the parameters of a car engine and can be used in installations to control the adjustment of parameters of a car engine.

The purpose of the invention is to increase the accuracy of the device.

The drawing shows a block diagram of the device.

The device contains a motor speed sensor 1 connected in series, a speed circuit 2 and a display 3, a gas analyzer 4, a transformer means sensor 5, an And 6 element, a delay element 7, and an actuating element 8.

The speed measurement circuit 2 comprises a pulse generator 9 (reference frequency), a frequency divider 10 having additional inputs for starting and stopping, a counter 11, a decoder 12, a counting trigger 13, registers 1A and 15, and an OR 16 element.

The actuating element 8 consists of a series-connected amplifier and composter (not shown).

 The device works as follows.

The car to be adjusted is installed on the adjustment post. The sensor 5 is activated and the start signal is fed to the input of the speed measurement circuit 2. The traffic controller connects the sensor 1 to the regulated engine and the input signal is fed to the input of the circuit 2. In the absence of a stop signal at the stop input (which comes from delay element 7), divider 10 divides the input frequency into three (or any other number depending on the required accuracy and permissible measurement time), and then supplies the divided frequency to the enable input of the counter 1 1 and the input of the counting trigger 13. In the presence of the enabling signal at the R input of the counter 11, it begins to read the pulses of a given frequency from the generator 9 of the reference frequency. The number of pulses of the generator 9 accumulated by the counter 11 during the time of the presence of the enabling signal at the R input of the counter 11 is decrypted by the decoder 12 and fed to the inputs of registers 14 or 15, in which the received information is recorded from the decoder 12

and comparing it with the task. In case of coincidence with the task rate, the registers 14 and 15 take the signal to the element OR 16 and then to the light board 3, and the element AND 6. With each pulse received from the divider 10, the counting trigger 13 alternately switches and thereby enables the registers 14 and 15. The signal from counting trigger 13 allows the signal from register 14 to skip and write to register 15 at the same time, when the next signal arrives at the input of counting trigger 13, registers 14 and 15 are switched so that a signal is removed from register 15, and to register 14 is recording. At the moment of a pause between the pulses of the input frequency after the formation of the counting time interval, a signal is sent from the dividers 10, which resets the counter 11 to zero. With the arrival of the next signal at the input of the divider 10 of the following signal, circuit 2 is started up for the next measurement cycle, at the same time inducing previous measurements. The signal speed is normally from the output of the circuit 2 measuring the speed is fed to the input element And 6, to other inputs

which receives signals from the rasoafizer of the analyzer 4 (CO is normal) and from sensor 5 (the product at the post). When all three signals coincide at the inputs of the element And 6, it gives a signal to the element

7 delay, which automatically resets to zero even if any of the three signals at its input momentarily disappears; When stable adjustment results are reached, during the time period determined by the technology, determined by the delay value, from the output of delay element 7, the signal goes to the actuating element 8, the composter of which makes branding

previously inserted into his control card car. At the same time, the signal from the output of the delay element 7 is fed to the stop input of the speed measurement circuit 2 and stops operation.

Claims (1)

Invention Formula A device for monitoring and recording the parameters of the motor of a transport means, containing an engine speed sensor, a pulse generator, the output of which is connected to the counter input of the counter, which is different in order to increase the accuracy of 3 1348878 the device, the second and third inputs of the vehicle availability are entered into it, the coorseTCTBeHtio is connected to the external analyzer, the frequency divider, the gas analyzer and the sensor for the elements, AND, OR, the decoder, the counting number of the vehicle, the output trigger, actuator element and element And is connected to the input element Fablo, the output of the sensor turn-delay, the output of which is connected To the first input of the frequency divider, to the actuator and to the second output of which is connected to the control input of the frequency divider, the third The main input of the counter and the counting southeastern of which is connected to the output of the dattrigger - to the first inputs of the registers, the vehicle availability chick, whose outputs through the element OR soi-outputs of the counter through the decoder Dineny with the scoreboard and with the first input ele-connected to the second inputs of the registers.