HARDWARE FAULT DIAGNOSIS METHOD AND APPARATUS FOR DCDC CONVERSION MODULE, AND STORAGE MEDIUM

WIPO Patent Application WO/2023/124003

A1

The present invention provides a hardware fault diagnosis method and apparatus for a DCDC conversion module, and a storage medium. The DCDC conversion module comprises: a first branch circuit and a second branch circuit which are connected in parallel. The hardware fault diagnosis method for the DCDC conversion module comprises: collecting currents and voltages of input ends and output ends of a first branch circuit and a second branch circuit; according to the currents and the voltages, determining whether a hardware fault occurs; physically turning off the branch circuit having the hardware fault; logically turning off the two branch circuits, and entering a temporary fault mode; and controlling, at least once, the first branch circuit and/or the second branch circuit to exit the temporary fault mode. According to the present application, the first branch circuit and the second branch circuit which are connected in parallel are provided on the DCDC conversion module, so that the other branch circuit without the hardware fault can exit from the temporary fault mode and normally maintain power output under the condition that one branch circuit has the hardware fault, and the driving safety of the whole vehicle is ensured.

SHAO NAN (CN)
HUANG HAO (CN)
HAN WEI (CN)
WEI BIN (CN)
XU LEI (CN)
SHEN HECHUN (CN)

PCT/CN2022/104805

July 06, 2023

July 11, 2022

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UNITED AUTO MOTIVE ELECTRNIC SYSTEMS CO LTD (CN)

G01R31/56; G01R19/165; G01R19/17

CN114384446A	2022-04-22
CN105827117A	2016-08-03
CN103454543A	2013-12-18
CN111313724A	2020-06-19
JP2019176604A	2019-10-10
JPH03135328A	1991-06-10

DING & ASSOCIATES PATENT TRADEMARK & LAW (CN)

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