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Patent Searching and Data


Title:
DETECTION CIRCUIT AND DETECTION METHOD FOR ELECTRIC CONTROL DEVICE, AND ELECTRIC VEHICLE
Document Type and Number:
WIPO Patent Application WO/2021/036960
Kind Code:
A1
Abstract:
The embodiments of the present application relate to the technical field of electronics. Disclosed are a detection circuit and detection method for an electric control device, and an electric vehicle. In some of the embodiments of the present application, the detection circuit comprises: a drive loop used for detecting the electric control device, the drive loop comprising: a drive power module, a high-side switch unit and a low-side switch unit; the detection circuit comprises: a detection power module, a first switch module, a second switch module, a first detection module, a second detection module and a control module; the control module is used for acquiring electrical signals of a third end of the first detection module and/or electrical signals of a second end of the second detection module, and determining, according to the electrical signals of the third end of the first detection module and/or the electrical signals of the second end of the second detection module, whether a fault occurs in the drive loop of the electric control device. Fault diagnosis of the drive loop of the electric control device can be performed in the described implementation.

Inventors:
DU BAOHAI (CN)
LIU CHANGJIAN (CN)
FU YANHUI (CN)
Application Number:
PCT/CN2020/110652
Publication Date:
March 04, 2021
Filing Date:
August 22, 2020
Export Citation:
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Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
G01R31/327; G01R31/28
Foreign References:
CN109541457A2019-03-29
CN109541457A2019-03-29
CN209296880U2019-08-23
CN109254245A2019-01-22
KR20160079507A2016-07-06
CN105490255A2016-04-13
CN201910818417A2019-08-30
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