Control device

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12249943
APP PUB NO 20220182006A1
SERIAL NO

17540595

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A control device that does not require arithmetic processing of a phase current can be provided. A control device in which a plurality of switching legs including a pair of semiconductor switching elements constituting an upper arm and a lower arm are provided in a number corresponding to the number of phases of a motor that is a load includes a switch short circuit detection unit configured to detect a short circuit failure of the semiconductor switching element, and a control unit configured to execute determination processing of determining whether the short circuit failure has occurred in the upper arm or the lower arm on the basis of a result of detection by the switch short circuit detection unit, and to set all the semiconductor switching elements that constitute an arm in which a short circuit failure has occurred on the basis of a result of the determination processing.

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Patent Owner(s)

  • HITACHI ASTEMO, LTD.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Goto, Masatoshi Shimotsuke, JP 13 55
Kurokawa, Kazunari Oyama, JP 46 479
Nakamura, Yuta Utsunomiya, JP 105 363
Sagiya, Yoshinori Shimotsuke, JP 3 1
Tai, Shintaro Utsunomiya, JP 3 1
Ueno, Shugo Utsunomiya, JP 3 12

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