Motor control device

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11305809
APP PUB NO 20190389507A1
SERIAL NO

16559948

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A motor control device controls driving of a motor, which outputs torque to a rack shaft as a load by rotation of a shaft fixed to a rotor. The motor control device has a rotation stress check unit for determining a rotation stress indicating a rotation stress, which is applied inversely from the load to a protection target member such as a shaft, bearing and oil seal related to the rotation of the shaft or torque transmission to the load. The rotation stress check unit determines the rotation stress is excessive based on that an absolute value of a rotation evaluation value exceeds a stress threshold value. The stress threshold value is set to be larger than an absolute value of an upper limit value realized in normal drive control.

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Patent Owner(s)

Patent OwnerAddress
DENSO CORPORATION1-1 SHOWA-CHO KARIYA-CITY AICHI-PREF 448-8661

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Isogai, Koji Kariya, JP 8 38
Murakami, Yuta Kariya, JP 39 148
Oiwa, Toru Kariya, JP 5 13

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