Brake system

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8544965
APP PUB NO 20110215638A1
SERIAL NO

13038894

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Provided is a brake system capable of preventing fuel efficiency of a vehicle from being lowered. After a brake pedal is released, a pump is driven under a state in which opening/closure of valves included in an ABS/VDC actuator are regulated so that pressure-reduction control for returning a brake fluid in wheel cylinders to a master cylinder is performed. Therefore, the brake fluid remaining in the wheel cylinders is returned to the master cylinder via the pump to increase a hydraulic pressure of the master cylinder. As a result, return characteristics of an electric actuation unit are improved. Therefore, for example, even if viscosity of grease applied onto a rotary-to-linear motion converting mechanism is increased at a low temperature or the like, pistons of the master cylinder can be appropriately returned to initial positions.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
HITACHI AUTOMOTIVE SYSTEMS LTD2520 TAKABA HITACHINAKA-SHI IBARAKI 312-8503

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sakuma, Masaru Kai, JP 33 173

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