Mitsubishi Electric Corporation

Wataru Ozaki

Akira Furukawa

Yusuke Kobayashi

Yu Kawano

Satoshi Iohara

Yoshikuni Tomioka

In an electric rotating machine apparatus according to the present disclosure, there is adopted a structure in which an extending portion of a control circuit board on which a power module for supplying electric power to windings and a driving circuit for the power module are mounted passes through an external-connection opening portion of an electromagnetic shield and then is connected with connectors. A filter circuitis mounted on the extending portion of the control circuit board so as to secure noise-removal capability. Because a conventional dedicated wiring board for mounting the filter circuit thereon is not required, the foregoing structure can contribute to downsizing and cost reduction. In addition, the foregoing structure can contribute to downsizing and cost reduction of an electric power steering apparatus equipped with the electric rotating machine apparatus according to the present disclosure.

Electric rotating machine apparatus and electric power steering apparatus

Provided is an angle detection device including: a correction signal calculator configured to generate corrected signals from a sine signal and a cosine signal acquired from an angle detector; and an angle calculator configured to calculate an angle signal for a rotary machine from the corrected signals. When one of the sine signal and the cosine signal is defined as a first detection signal, and another one thereof is defined as a second detection signal, the correction signal calculator calculates a corrected first detection signal and a corrected second detection signal, and the angle calculator calculates the angle signal for the rotary machine from the corrected first detection signal and the corrected second detection signal.

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Tokyo, Japan

Wataru Ozaki