Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
VEHICLE BRAKE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/064343
Kind Code:
A1
Abstract:
The purpose of the present invention is to increase the braking capability and improve the reliability of a manually-operated brake in a vehicle brake system. A hydraulic fluid replenishment device (40) is provided between first accumulators (15F), (15R) of a manually-operated brake circuit (11) and a second accumulator (25) of an automatic brake circuit (24). The hydraulic fluid replenishment device (40) replenishes the first accumulators (15F), (15R) with hydraulic fluid stored in the second accumulator (25) when a manually-operated brake is being operated by an operator. This controls against slowdown in the rate of brake pressure increase when the manually-operated brake is in operation.

Inventors:
TANAKA TAKAAKI (JP)
IKARI TAKANOBU (JP)
TSURUGA YASUTAKA (JP)
SATOU TAKAYUKI (JP)
SASAKI TAKASHI (JP)
Application Number:
JP2017/034748
Publication Date:
April 04, 2019
Filing Date:
September 26, 2017
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
HITACHI CONSTRUCTION MACH CO (JP)
International Classes:
B60T7/02; B60T7/12; B60T13/68; B60T15/00
Foreign References:
JP2003503278A2003-01-28
JPH08268256A1996-10-15
JPH037653A1991-01-14
JP2014111407A2014-06-19
EP2724903A22014-04-30
Other References:
See also references of EP 3489099A4
Attorney, Agent or Firm:
HIROWA PATENT FIRM (JP)
Download PDF: