To provide a control device for an electric booster which can suppress generation of sound and vibration due to a negative pressure of a piston chamber during pressure holding control.SOLUTION: A control device (100) of an electric booster (10) includes a motor control part (110) for controlling a rotation speed of an electric motor (21), in which the motor control part (110) restricts the rotation speed of the electric motor (21) when it is estimated that a brake pedal (11) is returned and a master cylinder pressure becomes a negative pressure during establishment of an execution condition of pressure holding control of holding a wheel cylinder pressure by closing a liquid passage between a master cylinder (14) and a brake liquid pressure unit (20).SELECTED DRAWING: Figure 7
【課題】圧力保持制御時にピストン室が負圧になることに起因する音や振動の発生を抑制可能な電動式倍力装置の制御装置を提供する。【解決手段】電動式倍力装置(10)の制御装置(100)は、電動モータ(21)の回転速度を制御するモータ制御部(110)を備え、モータ制御部(110)は、マスタシリンダ(14)とブレーキ液圧ユニット(20)との間の液通路を閉じることによりホイールシリンダ圧を保持する圧力保持制御の実行条件成立時に、ブレーキペダル(11)が戻されてマスタシリンダ圧が負圧になると推定される場合に電動モータ(21)の回転速度を制限する。【選択図】図7
CONTROL DEVICE FOR ELECTRIC BOOSTER
電動式倍力装置の制御装置
2021-06-17
Patent
Electronic Resource
Japanese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
Electric control booster control method and electric control booster
European Patent Office | 2023
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