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Title:
VEHICLE BODY CONTROL UNIT FAULT CODE TEST SYSTEM AND METHOD
Document Type and Number:
WIPO Patent Application WO/2023/231279
Kind Code:
A1
Abstract:
A vehicle body control unit fault code test system and method. The system comprises a programmable power supply, a fault injection apparatus, a CAN box and a computer terminal, wherein the computer terminal is in control connection with the programmable power supply; the programmable power supply is used for electrically connecting to a control unit under test and providing an overvoltage and an undervoltage for the control unit under test; the computer terminal is in control connection with the CAN box; and the CAN box is in signal connection with the control unit under test and can read fault code information from the control unit under test. A tester can make short-circuit, open-circuit, overvoltage and undervoltage faults by means of the system without damaging a wire harness, and can perform synchronous comparison with fault code information by means of a computer terminal, which facilitates the recording and positioning of problems. Compared with traditional test methods, the system and method can prevent the damage to a wire harness, and can also improve the test precision, thereby improving the test coverage.

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Inventors:
LIU DELI (CN)
SUN YUNXI (CN)
GU YUANYE (CN)
WANG SHENGXIN (CN)
ZHANG HAIBO (CN)
WANG QUANQING (CN)
WANG XICONG (CN)
BAI SHUANG (CN)
SUN YUN (CN)
MA WENFENG (CN)
Application Number:
PCT/CN2022/127305
Publication Date:
December 07, 2023
Filing Date:
October 25, 2022
Export Citation:
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Assignee:
FAW CAR CO LTD (CN)
International Classes:
G05B23/02; G01R31/00
Foreign References:
CN202870210U2013-04-10
CN111475357A2020-07-31
CN216248912U2022-04-08
CN114967651A2022-08-30
US7890810B12011-02-15
Attorney, Agent or Firm:
CHANGCHUN JIDA PATENT AGENT CO., LTD. (CN)
Download PDF:
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