Title:
BRAKE SYSTEM AND CONTROL METHOD OF THE SAME
Document Type and Number:
Japanese Patent JP2014201261
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a brake system and a control method of the same, which can decrease operation frequency of a vacuum pump and enhance negative pressure in a suction chamber of a brake booster.SOLUTION: A brake system comprises: a first passage L1 which is connected to a suction chamber of a brake booster 12 and an intake pipe 32; a check valve CV1 which is disposed in the first passage L1; a second passage L2 which bypasses the check valve CV1; an electrically-driven vacuum pump 18 which is disposed in the second passage L2 to supply the suction chamber of the brake booster 12 with negative pressure; a check valve CV2 which is disposed in the first passage L1 or the second passage L2; a third passage L3 which bypasses the check valve CV1; a reserve tank 28 which is disposed in the third passage L3; a check valve CV3 which is disposed in the third passage L3; and a check valve CV4 which is disposed in the third passage L3.
Inventors:
YOSHIOKA MAMORU
Application Number:
JP2013080634A
Publication Date:
October 27, 2014
Filing Date:
April 08, 2013
Export Citation:
Assignee:
AISAN IND
International Classes:
B60T17/00
Attorney, Agent or Firm:
Patent business corporation cosmos patent firm
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