To provide a brake torque generator for an electric vehicle which suppresses exhaust resistance of a piston communication passage to obtain sufficient brake torque while securing a large compression/expansion ratio.SOLUTION: A brake torque generator for an electric vehicle has: a cylinder 10b; a cylinder head 10c; and a mechanism 12 which has an air chamber 14a between itself and a piston 14 and reciprocates the piston 14. A recessed part 14c is formed at the air chamber 14a side of the piston 14, a protruding part 10d corresponding to the recessed part 14c is formed at the cylinder head 10c, and the protruding part 10d enters the recessed part 14c in a state that the air chamber 14a is compressed.SELECTED DRAWING: Figure 1

    【課題】大きな圧縮・膨張比を確保しながら、ピストン連通路の排気抵抗を抑えて、十分な制動トルクを得る。【解決手段】シリンダ10bと、シリンダヘッド10cと、ピストン14との間に空気室14aを有して、ピストン14を往復させる機構12を有する電気自動車用制動トルク発生装置であって、ピストン14の空気室14a側に凹部14cを形成して、該凹部14cに対応する凸部10dをシリンダヘッド10cに形成して、空気室14aが圧縮された状態で凸部10dが凹部14cに入り込むように構成した。【選択図】図1


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    Title :

    BRAKE TORQUE GENERATOR FOR ELECTRIC VEHICLE


    Additional title:

    電気自動車用制動トルク発生装置


    Contributors:

    Publication date :

    2021-06-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F04B Verdrängerkraft- und Verdrängerarbeitsmaschinen für Flüssigkeiten , POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF



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