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Hydrogen fuel automobile wire harness loading detection system, circuit and method

A technology of automobile wiring harness and detection system, applied in the direction of measuring electricity, measuring electrical variables, measuring devices, etc., can solve the problems of heavy detection workload, poor adaptability and versatility, etc., and achieve high accuracy, strong adaptability, and detection speed fast effect

Pending Publication Date: 2021-07-20
黄冈格罗夫氢能汽车有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There are many existing methods for testing the functions of automotive components. Usually, the previous practice is to develop a proprietary parameter detection system for each product. This method can achieve fast and reliable testing purposes. However, this proprietary parameter The adaptability and versatility of the detection system is very poor. If the proprietary parameter detection system is applied to the testing of other electronic components, the detection workload will be very large, especially when detecting the functional status of the vehicle wiring harness assembly. Big

Method used

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  • Hydrogen fuel automobile wire harness loading detection system, circuit and method
  • Hydrogen fuel automobile wire harness loading detection system, circuit and method
  • Hydrogen fuel automobile wire harness loading detection system, circuit and method

Examples

Experimental program
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Effect test

Embodiment 1

[0055] Embodiment 1 provides a hydrogen fuel vehicle wiring harness loading detection system: including a total negative pole, a power switch, a vehicle signal output integration terminal, a transfer interface integration terminal, a test integration interface terminal, a test signal collection and drive integration terminal, and a signal Display unit;

[0056] In some embodiments: such as figure 1As shown, it is a schematic diagram of a hydrogen fuel vehicle wiring harness loading detection system, where 1 is the integration of the vehicle product end, 2 is the integration end of the vehicle wiring harness, 3 is the system power switch, 4 is the grounding interface, and 5 is the Grounding test integration interface, 6 is the power transfer interface, 7 is the power test integration interface, 8 is the resistance transfer interface, 9 is the resistance test integration interface, 10 is the test signal acquisition and drive integration terminal, 11 is the signal acquisition dis...

Embodiment 2

[0064] Embodiment two: if figure 2 As shown, it is a schematic diagram of a load resistance type test circuit that can be used in Embodiment 1 in this embodiment, wherein 101 is the power signal output from the test signal collection and drive integration terminal, and 102 is the test signal collection and drive integration terminal output 103 is an adjustable voltage divider resistor R1, 104 is an adjustable test resistor R2, 105 is an anti-reverse diode VD1, R1, R2 and VD1 are connected in series to form a limiting loop, and the current flow of the limiting loop is from the power signal 101 to the limiting loop , and then flow to the ground signal 2 to prevent the external power signal from damaging the detection circuit;

[0065] 106 is the resistance load R3 of the product under test, R3 and R2 are connected in parallel, 111 is the signal output pin, one end of the signal output pin is connected to the test signal collection and drive integration end, and the other end is...

Embodiment 3

[0070] Embodiment three, such as image 3 As shown, a load grounding type test circuit is disclosed, wherein 201 is the power signal output from the test signal acquisition and drive integration end, 202 is the ground signal output from the test signal acquisition and drive integration end, 203 is the current limiting resistor R4, and 204 is The voltage dividing resistor R5 is used to divide the voltage of the loop, 205 is the anti-reverse diode VD1, and R4, R5 and VD1 are connected in series to form a limiting loop circuit to protect the safety of the loop. The current flow of the limiting loop is 201-limiting loop circuit-202 to prevent external power The signal damages the detection circuit;

[0071] 206 is the ground load of the product under test, 211 is the signal output pin, the signal output pin 211 is connected to the test signal collection and drive integration end, and the other end is connected to the limiting circuit, and its connection point is close to R4.

[0...

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PUM

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Abstract

The invention provides a hydrogen fuel automobile wire harness loading detection system, circuit and method. The hydrogen fuel automobile wire harness loading detection system is formed by connecting a total negative electrode, a power switch, a whole automobile signal output integration end, a switching interface integration end, a test integration interface end, a test signal acquisition and driving integration end and a signal display unit in series. According to the invention, adaptive detection can be conveniently carried out according to different wire harnesses, the phase system access port is designed based on different system signal types, the detection speed is fast, the accuracy is high, and the adaptability is strong.

Description

technical field [0001] The invention relates to the technical field of vehicle detection, in particular to a hydrogen fuel vehicle wiring harness loading detection system, circuit and method. Background technique [0002] With the popularity of hydrogen fuel cell vehicles, today's cars are becoming smarter and more energy-efficient, but there will also be more and more electronic controllers on new energy vehicles to improve the safety, comfort and convenience of new energy vehicles performance, etc., more and more vehicle wiring harnesses are assembled on new energy vehicles such as hydrogen fuel cell vehicles, which makes the electrical structure of the car more complicated, which also makes the detection workload of all wiring harnesses on the car before installation Very big. Therefore, new energy vehicles such as hydrogen energy vehicles must undergo strict vehicle wiring harness testing for each vehicle product before leaving the factory to ensure that each vehicle pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00G01R31/52G01R31/54G01R31/58
CPCG01R31/006G01R31/52G01R31/54G01R31/58
Inventor 程飞郝义国
Owner 黄冈格罗夫氢能汽车有限公司