| 摘要 |
PURPOSE: A brake actuator unit is provided to smoothly and linearly control brake pedal feels by installing two springs having the different elastic forces in a first and a second simulator. CONSTITUTION: A brake actuator unit includes a housing (100), a master cylinder (200), a reservoir, and a simulator. The master cylinder is connected to one end of the housing and includes a first pressure chamber (210) and a second pressure chamber (220) arranged in a horizontal direction to be parallel. The reservoir is connected to the upper part of the master cylinder and stores a hydraulic fluid. The simulator is accommodated in the master cylinder in a vertical direction to generate a reaction of a pedal and includes a first simulator and a second simulator. The first simulator and the second simulator are intersected with a first piston (211) and a second piston (221) arranged to be parallel and are arranged to be parallel to each other. The first simulator and the second simulator include a first simulator piston, a second simulator piston, a first simulator spring, and a second simulator spring. The first and second simulator springs have different elastic forces and supply the elastic force to the first and second simulator pistons. |
