RU2297011C1 - Device for diagnostics of the system of electric starting - Google Patents

Abstract

FIELD: the proposed invention refers to devices of technical diagnostics of electrical and electronic systems.

SUBSTANCE: it may be used for definition of technical condition of an electrical equipment of a sample of armored armament equipped with two-stage systems of electrical starting of an internal-combustion engine (a breaking, a short circuit) of a connecting electrical circuit the cause of the breakdown of the system of electrical starting of the engine. The device for diagnostics of the system of electrical starting has a commutation and coupling block, a measuring block, an analog-digital converter, a second source of feeding, a testing signals forming block, a signals processing module, a commands introduction block, a control block, a constant rewriting storage arrangement, a reference matrix module, a comparison module, a faultiness searching module, a messages forming module, a feeding block and a visualization block which are correspondingly connected between themselves.

EFFECT: increases operating capabilities.

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Description

The invention relates to means for the technical diagnosis of electrical and electronic systems and can be used to determine the technical condition of electrical equipment of a sample of armored armed equipment (standard abbreviation - BTWT) equipped with a two-stage electric start system (BOT) of an internal combustion engine.

There are various devices for checking the health and troubleshooting of an electric engine start system. In particular, a device for checking the system of electric starting of the engine of a tank (Number of published description to patent RU 2143582 C1 of 12/27/1999) allows troubleshooting the circuit of the system of electric starting of the engine to control the passage of output signals, including short-term ones, from the control circuit breaker matching automation device PAS-15-1C. Using an electrical circuit that includes ten identical cascades consisting of a diode, LED, relay and resistor, the signal passage from the control connector of the SHZ device PAS-15-1C is controlled. The signal passing is indicated by the LED on the corresponding stage. The list of devices checked by each cascade is given in the table located on the front panel of the device. Information is reset by the "Reset" button.

This device does not detect a malfunction (open, short circuit) of the connecting electrical circuit, which is the cause of the failure of the electric engine start system. In addition, a qualified person and crew member are required for verification. In the present invention, the elements of the prototype are not used.

An analysis of the electrical circuits of the BHTV samples and the order of interaction of the elements of the system showed that a conclusion about the technical condition of the SES of the engine of the sample can be made by evaluating the potentials of the control points by the time the system operates. The potential distribution of the control circuitry of the SES can be represented by a binary matrix. Automatic comparison in a computing device according to the developed program of binary matrices obtained when checking the potentials of control points with reference matrices corresponding to the working condition of the system will significantly reduce the time of checking the technical condition and increase the reliability and efficiency of troubleshooting the system of electric starting of the engine of the BHT model.

It is advisable to technically implement the automated diagnostic process in the following sequence:

automatic “ringing” of electrical circuits in their initial state until the battery switch (WB) is turned on;

automatic verification of electrical power and protection circuits after switching on the WB;

automatic check of system elements in accordance with the start sequence after pressing the STARTER button.

To solve these problems, a diagnostic tool for diagnosing an electric start system was developed, the basis of which is a computing device that implements a verification algorithm. The general block diagram of the device is presented in the drawing, where the following conventions are introduced:

1 - block switching and pairing;

2 - measurement unit;

3 - analog-to-digital Converter (ADC);

4 - secondary power source;

5 - block generating test signals;

6 - signal processing module;

7 - block input commands;

8 - control unit;

9 - rewritable read-only memory (EEPROM);

10 - module reference matrices;

11 is a comparison module;

12 - module troubleshooting;

13 - message generation module;

14 - power supply;

15 - block visualization.

The diagnostic device using the switching unit 1 is connected to the control connector Ш3 of the automation device, matching the electric launch system of the BTVT sample. The signal from the first output of the command input unit 7 to the input of the power supply 14, turns on the device. The power of the visualization unit 15 is provided from the second output of the power supply 14. The supply voltage from the first output of the power supply 14 is supplied to the input of the secondary power supply 4, from the first output of which the secondary voltage feeds the computing device through the second input of the control unit.

то есть потенциалам в контрольных точках, а столбцы - проверкам π_j,

:Initially, a reference matrix is formed that corresponds to the operational state of the system, which is written to the module of the reference matrices. The rows of the matrix correspond to the states of the elements of the system s _i ;

that is, the potentials at the control points, and the columns to the checks π _j ,

:

описывающим наличие потенциала в контрольных точках и исправность взаимосвязанных электрических цепей при выключенном состоянии системы. Строка s₁ описывает наличие потенциала в контрольных точках при включенном питании. Множество строк s_i,

описывают наличие потенциала в контрольных точках при изменении состояния элементов системы в течение всего процесса функционирования СЭП двигателя образца.The zero row of the matrix will be a vector

describing the presence of potential at the test points and the serviceability of interconnected electrical circuits when the system is off. Line s ₁ describes the presence of potential at the control points when the power is on. Many rows s _i ,

describe the presence of potential at control points when the state of the elements of the system changes during the entire process of functioning of the SES of the sample engine.

The operation of the device is as follows.

After connecting the device and entering the command, the signal from the second output of the command input unit 7 is fed to the first input of the control unit 8. The signal of the first output of the control unit 8 is fed to the second input of the test signals generation unit 5, and the voltage from the second output of the secondary source is supplied to its first input power supply 4. From the output of the test signal generation unit 5, the control signal is supplied to the second input of the switching and coupling unit 1, from the first output of which - to the corresponding contacts of connector Ш3. The signals taken from the contacts of connector Ш3 are fed to the first input of the switching and pairing unit 1, from the second output of which - to the first input of the measuring unit 2. The measured signal from the output of the measuring unit 2 goes to the input of the ADC 3, and from its output after conversion - to the input of the signal processing module 6, where the zero row of the matrix is formed, which is stored in the ROM 9.

After turning on the power at the tested object, the next command is entered, which from the second output of the command input unit 7 goes to the first input of the control unit 8, and from its second output the control signal goes to the second input of the measurement unit 2 and starts the potential measurement processes on the contacts of the control connector Ш3 and forming the first row of the matrix, which is stored in the ROM 9.

After entering the command for automatic measurement of signals at control points during the entire process of the BOT operation, it is necessary to press the STARTER button of the sample engine electric start system. The processes of measuring potentials and the formation of matrix rows occur, as in the previous case. At the end of the process of forming the matrix of the real state of the system elements, the signal from the first output of the EPROM is fed to the third input of the control unit 8 and starts the automatic process of determining the technical condition and troubleshooting. In this case, from the control unit 8, the signals are received: from the third output - to the first input of the EPROM 9, from the second output of which the formed matrix is transmitted to the third input of the comparison module 11; from the sixth output - to the input of the module of the reference matrices, from the output of which the state matrix corresponding to a working system arrives at the first input of the comparison module 11; from the seventh output to the second input of the comparison module 11, initiating the comparison process; from the fourth and fifth outputs - to the first inputs of the message generation module 13 and the troubleshooting module 12, respectively, initiating the necessary software processes.

If there are inconsistencies in the elements of the matrices being compared, then the data from the first output of the comparison module 11 is fed to the second input of the fault finding module 12, where the fault is localized by their combination, and from its output, the data about the faulty elements of the EPA are transferred to the second input of the message generating module 13, the output of which the corresponding message is fed to the second input of the visualization block 15.

If the system is operational, then the signal from the second output of the comparison module 11 is fed to the third input of the message generation module 13, from the output of which the corresponding message is sent to the second input of the visualization block 15.

Thus, the present invention will significantly reduce the time for checking the technical condition, as well as increase the reliability and efficiency of troubleshooting the system of electric starting of the engine of the BHT model.

Claims (1)

Diagnostic device of the electric start-up system (BOT), characterized in that it includes a switching and pairing unit, a measurement unit, an analog-to-digital converter (ADC), a secondary power source, a unit for generating test signals, a signal processing module, an instruction input unit, control unit, rewritable read-only memory (EPROM), reference matrix module, comparison module, troubleshooting module, message generation module, power supply, visualization unit, while the first and second outputs The odes of the command input unit are connected respectively to the first input of the control unit and the input of the power supply, the second output of which is connected to the visualization unit, and the first to the input of the secondary power source, and its first and second outputs are connected respectively to the second input of the control unit and the first input of the unit the formation of a test signal, the output of which is connected to the second input of the switching and pairing unit, and its first output and first input are connected to connector Ш3 of the automation device of the device that matches the tested SEC of the sample B motor VT and the second output - with the first input of the measurement unit, the output of which is connected to the ADC input, and the output from it - through the signal processing module with the first input of the EPROM, the first and second outputs of which are connected to the third input of the control unit and the third input of the comparison module, respectively, the first and second outputs of the comparison module are respectively connected to the second input of the fault finding module and the third input of the message generating module, the output of the fault finding module being connected to the second input of the message generating module, and the first input is connected to the fourth output of the control unit, the output of the message generating unit is connected to the second input of the visualization unit, the first, second, third, fifth, seventh and sixth outputs of the control unit are respectively connected to the second inputs of the test signal generating unit, the measurement unit and the ROM, the first input fault finding module, the second input of the comparison module and the input of the reference matrix module, the output of which is connected to the first input of the comparison module.