Title:
車両用自動ブレーキ装置
Document Type and Number:
Japanese Patent JP6674314
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To allow brake responsiveness to be recovered immediately, even if an opening area of a master port communicating a reservoir tank with a master cylinder is narrowed by brake pedal operation using extremely loose tread force by a driver and therefore flow ratios are decreased.SOLUTION: Variations of brake fluid which flows through first and second hydraulic circuits 22 and 23 during automatic brake operation are detected (S3); when variations of at least one brake fluid of brake fluid flowing through both hydraulic circuits 22 and 23 are out of a specified value (S4 and S5), the downstreams of hydraulic pumps 26 installed in the hydraulic circuits 22 and 23 respectively are connected to wheel cylinders 13a-13d, and the upstreams thereof are connected to a master cylinder 4; and brake fluid at the wheel cylinders 13a-13d sides is supplied to the master cylinder 4, so that fluid-pressure return processing for pressing back master pistons 9a and 9b is performed (S6).SELECTED DRAWING: Figure 4
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Inventors:
Yusuke Ando
Application Number:
JP2016090440A
Publication Date:
April 01, 2020
Filing Date:
April 28, 2016
Export Citation:
Assignee:
Subaru corporation
International Classes:
B60T8/00; B60T7/12; B60T8/17; B60T8/171; B60T8/1755; B60T8/48
Domestic Patent References:
| JP2009292206A | ||||
| JP2015145185A | ||||
| JP2010036811A |
Attorney, Agent or Firm:
Patent Business Corporation Itoshin International Patent Office
Susumu Ito
Yasushi Hasegawa
Osamu Shinoura
Susumu Ito
Yasushi Hasegawa
Osamu Shinoura