Patent ID: 11926298
Assignee: SUBARU CORPORATION
Field: Transport (Mechanical engineering)
Classification: CPC B  G | IPC B  G

Claim 0:
1. A brake device comprising:
a brake pedal rotatable using an arm rotary shaft disposed on one end of a pedal arm used as a fulcrum;
an input rod to which a pedal force input to the brake pedal is transmitted as a thrust;
a master cylinder configured to generate a brake hydraulic pressure responsive to the thrust input to the input rod;
a guide rail disposed on the pedal arm and extending along a longitudinal direction of the pedal arm;
a slider coupled to the pedal arm via the guide rail and movable on the guide rail;
a coupling arm comprising a first end rotatably coupled to the slider, and a second end rotatably coupled to the input rod, the second end being different from the first end;
a negative pressure brake booster configured to increase the thrust transmitted to the input rod;
a negative pressure sensor configured to detect a negative pressure introduced to the brake booster; and
a controller configured to control a moving position of the slider relative to the guide rail;
wherein the controller is configured such that, in a case where the negative pressure detected by the negative pressure sensor is lower than a preset threshold, the controller moves the slider toward the arm rotary shaft.