Title:
【発明の名称】電子ブレーキ動作システム
Document Type and Number:
Japanese Patent JP2613588
Kind Code:
B2
Abstract:
A vehicle dual wheel braking system of the type in which a respective electronically controlled pressure adjustment channel is provided for each of the wheels at the opposite ends of an axle of the vehicle for setting the braking pressures individually for each wheel in dependence upon a common electrical signal representative of the braking demand level set by a driver of the vehicle, each channel comprising a pressure control loop containing a pressure controller, a pressure control valve which adjusts the supply of fluid from a reservoir to the brake actuators for applying and releasing the brakes by solenoid control of the inlet and exhaust functions of the pressure control valve, and a feedback transducer which supplies a signal representative of the pressure in the pressure control valve. The system includes respective fault monitoring means for detecting the presence of faults in the signals provided by the two feedback transducers, and means responsive to the fault monitoring means such that if a feedback signal fault is detected in one of the two channels, the individual pressure control on that channel is disabled and the solenoids controlling inlet and exhaust functions of the pressure control valve of that channel are energised from an alternative mechanism of control which does not rely upon the output signal from the faulty feedback transducer.
Inventors:
Marcolm Blairy
Richard Brian Moseley
Richard Brian Moseley
Application Number:
JP5784690A
Publication Date:
May 28, 1997
Filing Date:
March 08, 1990
Export Citation:
Assignee:
Lucas Industries Public Limited Company
International Classes:
B60T8/00; B60T8/1761; B60T8/92; B60T8/58; B60T8/88; B60T8/94; B60T8/96; B60T13/66; B60T13/68; B60T17/18; (IPC1-7): B60T8/92
Domestic Patent References:
| JP61166764A | ||||
| JP6291352A | ||||
| JP62210158A |
Attorney, Agent or Firm:
Shusaku Yamamoto