PROBLEM TO BE SOLVED: To suppress instability of vehicular behavior caused by a failure during a travel-in-turning.SOLUTION: A power steering system is incorporated in a vehicle, the system including: a motor having two multi-phase coils; a power supply part having two power supplies, for supplying each phase coil of the motor with power; and a control part having inverters corresponding to the multi-phase coils, for controlling the power to be supplied to each phase coil. Further, in a case where one of the inverters fails while the vehicle is travelling-in-turning on a travel road, the control part causes the vehicle to gradually travel near the center line of the travel road, and limits, to a given value or less, a decrease in torque during switching from one inverter to another inverter.

    【課題】旋回走行中の故障により生じる車両挙動の不安定化を抑制すること。【解決手段】二つの多相コイルを含むモータと、二つの電源を含み、前記モータの各相コイルへと電力を供給する電源部と、前記多相コイルに対応して設けられるインバータを含み、前記各相コイルに対して供給される前記電力を制御する制御部と、を備えた、車両に搭載されるパワーステアリングシステムであって、前記制御部は、前記車両が走行路を旋回走行中に、一方のインバータが故障した場合、前記車両を、徐々に、前記走行路のセンターラインへ近づけて走行させ、且つ、一方のインバータから他方のインバータへと切り替えるまでの間に生じるトルクの減少を、所定値以下とする、パワーステアリングシステム。【選択図】図1


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    Title :

    POWER STEERING SYSTEM


    Additional title:

    パワーステアリングシステム


    Contributors:

    Publication date :

    2015-11-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern



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