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Title:
ABNORMALITY DETECTING DEVICE AND VEHICLE-MOUNTED POWER SUPPLY DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/025598
Kind Code:
A1
Abstract:
According to the present invention, abnormality determination of parts having a high importance is carried out when a vehicle-mounted power supply device is to be operated. An abnormality detecting device (3) is provided with a detecting circuit portion (16A, 16B, 18, 10B), a protective circuit portion (14A, 14B), and an abnormality detecting portion (10). The detecting circuit portion is provided with a voltage detecting circuit (16A, 16B) and a current detecting circuit (18) which generate, as analog signals, detected values indicating a current and a voltage at a prescribed position in the vehicle-mounted power supply device (1), and an A/D converter (10B) which converts the detected values into digital signals. The protective circuit portion (14A, 14B) performs a prescribed protection operation with respect to the vehicle-mounted power supply device (1) if the voltage or current in an input path or an output path of a voltage converting unit (CV) is exhibiting an abnormal value. The abnormality detecting portion (10) causes at least one of the detecting circuit portion and the protective circuit portion to carry out a pre-determined diagnosis operation, and determines an abnormality in at least one of the detecting circuit portion and the protective circuit portion on the basis of the result of the diagnosis operation.

Inventors:
TERADA, Noriko (1-14, Nishisuehiro-cho, Yokkaichi-sh, Mie 03, 〒5108503, JP)
Application Number:
JP2017/025333
Publication Date:
February 08, 2018
Filing Date:
July 12, 2017
Export Citation:
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Assignee:
AUTONETWORKS TECHNOLOGIES, LTD. (1-14, Nishisuehiro-cho Yokkaichi-sh, Mie 03, 〒5108503, JP)
SUMITOMO WIRING SYSTEMS, LTD. (1-14, Nishisuehiro-cho Yokkaichi-sh, Mie 03, 〒5108503, JP)
SUMITOMO ELECTRIC INDUSTRIES, LTD. (5-33, Kitahama 4-chome Chuo-ku, Osaka-sh, Osaka 41, 〒5410041, JP)
International Classes:
H02M3/155
Attorney, Agent or Firm:
GRANDOM PATENT LAW FIRM (Hirokoji Sakae Bldg. 3F, 4-1 Sakae 2-chome, Naka-ku, Nagoya-sh, Aichi 08, 〒4600008, JP)
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