Hitachi Astemo Ltd.

Masayuki Kikawa

Norikazu Matsuzaki

Daisuke Kojima

Suguru Saotome

An ESCincreases distribution of a braking force to rear wheels according to a reduction in a speed of a vehicle due to braking, and distributes the braking force so as to allow the vehicle to be kept stopped due to braking forces applied to the rear wheels when the vehicle stopped. Then, a second ECU holds the braking force by driving a parking mechanism with the vehicle kept stopped due to the braking forces applied to the rear wheels.

Brake system, braking force distribution apparatus, and electric brake apparatus

A parking brake control device is configured to, when releasing a hold on a braking force, energize an electric motor, and change a drive time of the electric motor based on a current change amount in a predetermined interval after a predetermined time has elapsed since a current value of the electric motor starts to decrease after increasing and a current value at which the current change amount of the electric motor converges to a predetermined value or less.

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Hitachinaka, Japan

Masayuki Kikawa