Honda Motor Co., Ltd.

Autoliv Nissin Brake Systems Japan Co., Ltd.

Toru Mabuchi

Takaaki Ohnishi

Kazuaki Murayama

Takehiro Horiuchi

Kaoru Akahane

Arata Inoue

Kazuyoshi Akutsu

Makoto Sawai

Kunimichi Hatano

Kenji Hattori

Nobuyuki Kobayashi

Tomoaki Kotaki

Untreated bosses are formed in advance in two directions on a cylinder mechanism. The bosses on one side are formed as mounts to attach a motor cylinder device to a vehicle body, and the other bosses are formed as ports to connect to the cylinder mechanism. The mount bosses are formed on the outside in the width direction of the vehicle, and the port bosses are formed on the inside in the width direction of the vehicle.

Vehicle-body attachment structure for electric brake actuator

A structure for attaching a motor cylinder device to the body of the vehicle, said vehicle brake system including: an input device via which an operator inputs brake operations; and a motor cylinder device that generates hydraulic brake pressure on the basis of electrical signals based on said brake operations. Said motor cylinder device has: an electric motor that operates on the basis of electrical signals; a driving-force transmission unit that transmits driving force from the electric motor; and a cylinder mechanism that applies pressure to a brake fluid by moving a piston axially by means of the driving force transmitted by the driving-force transmission unit. A mount for attaching the motor cylinder device to the body of the vehicle is provided near the center of gravity of the motor cylinder device. This makes it possible to minimize displacement of the electric brake actuator when subjected to vibration.

The purpose of the present invention is to provide a vehicle brake system having a high degree of mounting freedom. The present vehicle brake system is configured in such a manner that an input device into which braking operation of the operator is inputted and a motor cylinder device which generates hydraulic brake pressure on the basis of an electric signal according to at least the braking operation are disposed so as to be separated from each other in the engine room partitioned in front of the dashboard. The vehicle brake system is characterized in that the input device is disposed behind a power device in such a manner that at least a part of the input device overlaps the power device in the front-rear direction.

Vehicle brake system

The following are provided: an input device via which an operator inputs brake operations; a motor cylinder device that generates hydraulic brake pressure on the basis of electric signals based on said brake operations; and a VSA device that assists in stabilizing the behavior of the vehicle on the basis of the aforementioned hydraulic brake pressure generated by the motor cylinder device. Said input device, motor cylinder device, and VSA device are disposed, separated from each other, in an engine compartment partitioned off forwards of a dashboard.

Growing community of inventors

Saitama, Japan

Toru Mabuchi