Patent ID: 9566968
Date: 2017-02-14
CPC Classifications: B60T

Claim:
1. An input device of a vehicle brake system, the vehicle brake system comprising: the input device into which an operation of a brake operating member is input; and an electric brake actuator which generates a brake fluid pressure based on at least an electric signal generated in accordance with the operation of the brake operating member, the input device being structured as a separate device from the electric brake actuator and including the brake operating member so as to be operated by an operator, the input device comprising: a master cylinder that produces a fluid pressure in accordance with the input of the operation of the brake operating member; a valve unit; and a stroke simulator that is provided side by side with the master cylinder, is in communication with the master cylinder, and applies in a pseudo manner a force counteracting the operation of the brake operating member to the brake operating member, wherein the input device is configured to be fixed to a vehicle dashboard, the master cylinder, the stroke simulator and the valve unit are formed integrally, the master cylinder, the stroke simulator, and the valve unit are provided side by side in an integral manner in a vehicle width direction, and the input device further comprises a first connection port that is in communication with the master cylinder via a first fluid pressure passage, a second connection port that is in communication with the master cylinder via a second fluid pressure passage, and a branched fluid pressure passage that is branched from the second fluid pressure passage and is in communication with the stroke simulator, a first cut-off valve is provided in the first fluid pressure passage, a second cut-off valve is provided in a portion of the second fluid pressure passage between the second connection port and a location at which the branched fluid pressure passage is branched from the second fluid pressure passage, and a third cut-off valve is provided in the branched fluid pressure passage.