HYDRAULIC BRAKE SYSTEM, AIR VENTING DEVICE, AND AIR VENTING METHOD

WIPO Patent Application WO/2014/175016

A1

A hydraulic brake system is configured so that air in a back hydraulic control device, which is connected to a back chamber behind the pressurizing piston of a master cylinder, is capable of being vented while an air-containing hydraulic fluid is not supplied to the back chamber. When an air venting command is issued, a pressure-increasing linear valve (160) is switched to an open state. This causes a pump device (106), high-pressure piping (102), a control pressure chamber (122), and a reservoir (52) to be connected to form an air vent passage (250). The pump device (106) is started while hydraulic pressure within an accumulator (108) is substantially the atmospheric pressure. This causes a hydraulic fluid to flow and to be discharged to the reservoir (52). A hydraulic fluid is capable of being caused to flow while hydraulic pressure within the air vent passage (250) is low and while a regulator (97) is prevented from operating, and air venting is capable of being performed while an air-containing hydraulic fluid is not supplied to the back chamber (66).

KAMIYA YUSUKE (JP)
KOMAZAWA MASAAKI (JP)
ISHIDA YASUHITO (JP)

PCT/JP2014/059624

October 30, 2014

April 01, 2014

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TOYOTA MOTOR CO LTD (JP)
ADVICS CO LTD (JP)

B60T17/00; B60T13/12; F15B21/044

JP2011240873A	2011-12-01
JP2010144752A	2010-07-01
JPS6313335U	1988-01-28
JP2008120311A	2008-05-29

CHUBU PATENT OFFICE (JP)
Central patent business corporation international patent firm (JP)

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