Hitachi, Ltd.

Yukihiro Osawa

Atsushi Yokoyama

Satoru Kuragaki

Mitsuo Sasaki

Jun Kubo

Taisetsu Tanimichi

Yukihiko Inoue

Katsuya Iwasaki

Tsutomu Hibi

A brake system that provides a good pedal feel, that assists stepping force of a driver by a small motor, and that can control braking force of wheels individually. The brake system comprises a first actuator () for increasing a liquid pressure in a master cylinder () by driving torque of a motor (), and a second actuator () capable of driving a brake generating mechanism () without transmitting power to the master cylinder (), wherein the actuators () to be driven are switched depending on the operation of a brake pedal (). The first and second actuators () are connected to hydraulic piping (), and a pressurized oil is supplied to the brake generating mechanism () through hydraulic valve means ().

Brake device and controller for the same

Growing community of inventors

Tokyo, Japan

Yukihiro Osawa