RU2819478C1 - Starter-generator relay testing device - Google Patents

Abstract

FIELD: measurement.

SUBSTANCE: invention relates to diagnostics, in particular to devices for monitoring and predicting operation of electrical equipment of armoured weapons. Proposed is a device for testing a starter-generator relay, comprising connectors "X1" (1) and "X2" (8), wherein connector "X1" (1), which is connected to the winding of the tested relay and the power supply, connected to signalling lamp "POWER" (2), indicating availability of power in the device and connected to fuse "Pr-10A" (3), preventing failure in case of short circuit, connected to ammeter "I contact" (4), indicating force current passing through relay contacts, connected to "ON winding" button (5), which supplies voltage to adjustable voltage converter "U winding –/+" (6), connected to voltmeter "U winding" (7), which allows to control supply of required voltage to winding of starter-generator relay. Voltmeter "U winding" (7) is connected to three signalling lamps (9-11), which indicate presence of closure or opening of contacts of diagnosed relay and connected to connector "X2" (8), which allows connection to power outputs of relay contacts.

EFFECT: possibility of timely detection of occurred fault, increase of reliability of prediction of residual resource, reduction of time for search of occurred fault of relay.

1 cl, 1 dwg

Description

The device for testing the starter-generator relay belongs to the field of diagnosing special systems of armored weapons, in particular to devices for monitoring and predicting the operation of electrical equipment of armored weapons and can be used in the development and modernization of promising devices for diagnosing the electric engine start system of armored weapons.

A device for testing the starter-generator relay of the electric engine start system of armored vehicles with a prediction function, including a set of interconnected signal lamps, a voltmeter, an ammeter, a button, a potentiometer, a fuse, designed for equipping diagnostic workstations of repair and restoration bodies when restoring samples armored weapons.

From the existing level of technology, a device for checking the electric engine start system of a tank is known (see patent RU 2143582, IPC F02N 11/08, published 12/27/1999) allows you to troubleshoot the circuit of the electric engine start system by monitoring the passage of output signals, including short-term, from the control connector Sh3 of the automatic matching device PAS-15-1S. Using an electrical circuit that includes ten identical stages consisting of a diode, LED, relay and resistor, the passage of a signal from the control connector III3 of the PAS-15-1S device is monitored. The passage of the signal is indicated by the lighting of the LED of the corresponding stage. The list of devices tested by each cascade is given in the table located on the front panel of the device. The information is reset using the "Reset" button.

This device does not allow detecting a malfunction of the starter-generator relay due to the absence of a test cascade for the RSG-10M1 starter-generator relay in the device, which is the cause of failure of the electric engine starting system. In addition, a qualified technician and crew member are required for inspection. In the proposed invention, prototype elements are not used.

A well-known device for diagnosing the electric start system (see patent RU 2297011, IPC G01R 31/02, published 04/10/2006) allows you to determine the technical condition of the electric starting system based on the results of assessing the potentials of control points over the operating time of the system. The potential distribution of the control electrical circuit of the PDS can be represented by a binary matrix. Automatic comparison in a computing device according to a developed program of binary matrices obtained when checking the potentials of control points with reference matrices corresponding to the good state of the system, allowing to reduce the time for checking the technical condition and increase the reliability and efficiency of troubleshooting the electric starting system of an armored vehicle type engine.

This device does not allow detecting a malfunction of the starter-generator relay due to the inability to check the RSG-10M1 starter-generator relay through the ShZ connector of the automatic matching device, which is the cause of failure of the electric engine starting system.

A known device for diagnosing blocks PAS-15-2S, PUS-15R, BSP-1M of the T-72BZ tank (see patent RU 158327, IPC G01M 15/00, published 12/27/2015) allows you to check the blocks of the tank’s electric start system, such as PAS-15-2S, PUS-15R, BSP-1M, by passing input and output signals using indicator lamps.

This device does not allow detecting a malfunction of the starter-generator relay due to the lack of the ability to check the RSG-10M1 starter-generator relay, since the device is limited in its diagnostic capabilities and there is no possibility to connect the diagnosed relay, which is part of the tank’s electric starting system.

There is a well-known control and testing stand model E250M-2-SIP from the workshop of electrical special equipment (armored weapons and equipment) MES-BTM.1 [see. Trademark certificate 648102, publ. 02/10/2020 bulletin. No. 3]. This stand relates to technical diagnostic devices, specifically to diagnostic devices for electrical systems that provide measurement of current, direct and alternating current voltage when monitoring the technical condition and adjusting electrical equipment removed from the vehicle.

The stand allows you to test the starter-generator relay of the tank's electric starting system only if it is used in a workshop for repairing electrical equipment, where for testing it is possible to supply the diagnosed relay with a voltage varying from 0 to 14 volts. For this purpose, the relay being diagnosed must be removed from the tank and placed in a workshop, which requires a lot of time and the availability of equipment for dismantling. The inability to diagnose a relay in a tank without dismantling the relay being diagnosed is the main disadvantage.

A known device for checking the starter-generator relay (see patent RU 217531 U1, IPC G01M 15/00, published 04/04/2023) allows you to check the functionality of the RSG-10M1 starter-generator relay used in the electric engine start system of armored vehicles. This device belongs to technical devices for diagnosing devices of the electric engine starting system of armored vehicles and can be used to determine the technical condition of the relay being diagnosed.

The device has limited functionality, since it allows you to check the performance of the diagnosed relay with unknown reliability, which does not allow you to predict the residual life.

The purpose of the proposed device is to increase reliability, expand functionality and increase the reliability of residual life prediction by providing diagnostics, troubleshooting, maintenance and repair.

This goal is achieved by the fact that a device for checking the starter-generator relay, containing a connector that allows the device to be connected to the standard batteries of the tank and to the winding of the relay being diagnosed, connected to a warning lamp indicating the presence of power in the device, connected to a fuse connected to the building in case of a short circuit, connected to an ammeter, allowing you to determine the amount of current passing through the contacts, connected to the winding switch button, supplying voltage to an adjustable voltage converter, connected to a voltmeter, allowing you to control the supply of a given voltage to the winding of the starter-generator relay, connected to three signaling lamps indicating the presence of a short circuit or open circuit of the contacts of the relay being diagnosed, connected to a connector that allows the connection of the relay being diagnosed to the device.

The technical result that can be achieved when using the invention is to increase reliability due to the timely detection of a malfunction, predicting the remaining life, calculated from the voltage and current indicators flowing through the relay contacts, which increases the combat readiness of armored weapons; in addition, the time for search for any malfunction and reliability.

The essence of the proposed invention is illustrated by the drawing, which shows the block diagram of the diagnostic device:

In fig. 1 - shows a diagram of a device for checking the starter-generator relay.

The proposed device for testing the starter-generator relay includes connector “XI” 1, through which it is connected to the winding of the relay being diagnosed and a power source, connected to the warning lamp “POWER” 2, indicating the presence of power in the device, connected to the fuse “Pr-10A” 3 , preventing failure during a short circuit, connected to an ammeter “I contact” 4, showing the current strength passing through the relay contacts, connected to the “Winding ON” button 5, supplying voltage to the adjustable voltage converter “U winding -/+” 6, connected to a voltmeter “U winding” 7, allowing the required voltage to be applied to the winding of the starter-generator relay, connected to three signaling lamps 9-11, indicating the presence of shorting or opening of the contacts of the diagnosed relay, connected to connector “X2” 8, allowing connection to the power terminals relay contacts. The operation of the device is as follows.

The principle of operation of the device is based on monitoring the passage of input and output signals using the illumination of indicator lamps 9-11, the reading of a voltmeter 7, the reading of an ammeter 4 and the subsequent determination of the malfunction of the relay being tested and the determination of the residual resource.

To check the functionality of the starter-generator relay and determine the remaining resource, it is necessary to disconnect the jumpers connected to it from the batteries and connect the device to the relay output bolts to connectors “XI” 1 and “X2” 8. After connection, the “POWER” lamp 2 turns on. This indicates the serviceability of the device and its readiness for operation. Next, you need to press the “Winding ON” button 5 to apply voltage to the winding of the relay being tested and control lamps 9-11, while lamp 9 will light up, but two lamps 10 and 11 will not. Turn the handle of the step-down converter “U winding -/+” 6 to the extreme left position, thereby setting the voltage supplied to the relay winding to the minimum value. Rotating the handle of the step-down converter “U winding -/+” 6 clockwise, while monitoring the increase in voltage using the voltmeter “U winding” 7, gradually increase the supplied voltage, and monitor the moment of closing/opening the relay contacts by the operation of the contactors, fix by the switched off lamp 9, indicating the opening of the generator mode contacts, and the switching on of lamps 10,11, indicating the closure of the starter mode contacts. Visualize the voltage on the voltmeter “U winding” 7 and the current flowing in the contacts on the ammeter “I contact” 4 at which the starter mode contacts close and the generator mode contacts open. The contact closure voltage should be no more than 13 volts. In this case, lamp 9 should go out before lamps 10,11. Rotating the handle of the step-down converter “U windings -/+” 6 counterclockwise, while monitoring the decrease in voltage using the voltmeter “U windings” 7, gradually reduce the supplied voltage, and control the moment of opening the relay contacts by the actuation of the contacts, record by the switched off lamps 10, 11 and the lamp 9 turned on. Visualize the voltage on the voltmeter “U winding” 7, at which the starter mode contacts open and the generator mode contacts close. The contact closure voltage should be from 1 to 4 volts. In this case, lamps 10 and 11 should turn off before lamp 9.

Using the visualized readings of the voltmeter “U winding” 7 and the ammeter “I contact” 4, the resistance of the electrical contact is calculated using the formula (GOST 24606.3-82):

R _x =U _pν /I _pa,

where U _pν is the voltage on the voltmeter 7, V;

I _pa is the current flowing through the ammeter 4, A.

Based on the calculated resistance, the condition of the contacts is assessed and the residual life of the relay being diagnosed is predicted.

The proposed device for testing the starter-generator relay used in the electric engine start system of armored vehicles allows the relay to be tested without its dismantling by low-skilled repair and restoration specialists, which reduces the labor intensity of troubleshooting and repair processes.

The advantage of the proposed device for checking the starter-generator relay is the reduction of time for troubleshooting, increasing the reliability of diagnosing the relay and the armored vehicle model in general. In addition, the information content in case of malfunctions in the form of the residual life of the starter-generator relay increases, the time and costs of troubleshooting and performing repair and maintenance work on electrical special equipment and automatic equipment of armored vehicles are reduced.

Claims (1)

A device for testing the starter-generator relay, characterized in that it includes connectors “X1” and “X2”, while connector “X1”, connected to the winding of the relay being diagnosed and the power source, is connected to the “POWER” warning lamp, indicating the presence of power in a device connected to a “Pr-10A” fuse, which prevents failure during a short circuit, connected to an “I contact” ammeter, showing the strength of the current passing through the relay contacts, connected to the “Winding ON” button, which supplies voltage to the adjustable converter voltage “U winding -/+”, connected to a voltmeter “U winding”, which allows you to control the supply of the required voltage to the winding of the starter-generator relay, while the voltmeter “U winding” is connected to three signaling lamps indicating the presence of short circuit or open circuit of the contacts of the diagnosed relay and connected to the “X2” connector, allowing connection to the power terminals of the relay contacts.