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1. 发明申请

WO1996031378A1 CONTROLLING THE ON TIME OF A PUMP IN A BRAKING SYSTEM 审中-公开
标题翻译：控制制动系统中泵的开启时间
公开(公告)号：WO1996031378A1
公开(公告)日：1996-10-10
申请号：PCT/US1996004719
申请日：1996-04-05
申请人： KELSEY HAYES COMPANY
发明人： KELSEY HAYES COMPANY , NEGRIN, Dan , LUCKEVICH, Mark, Steven , TUCK, Brian, C.
IPC分类号： B60T13/16
CPC分类号： B60T8/4045 , B60T8/404 , Y10S303/11
摘要： The method and system for controllably restricting the on time of a pump (32) of an electro-hydraulic control system for a hydraulic brake system by modelling the amount of hydraulic brake fluid in a low pressure accumulator (LPA) of the hydraulic brake system. Sensors (24) sense wheel speed of their respective wheels (20) of a vehicle. Control valves (34, 36), including isolation and dump valves, together with the pump (32), vary the amount of brake fluid in the LPA. A control unit (26) electrically coupled to the pump (32), the control valves (34, 36) and the wheel speed sensors (24), initially detects an electro-hydraulic control event based on the sensed wheel speeds and then activates the control valves (34, 36) and pump (32) which vary the amount of brake fluid in the LPA. The control unit (26) models the amount of brake fluid in the LPA during the activation and controls the state of the pump (32) based on the modelled amount of brake fluid in the LPA. The modelled amount of brake fluid in the LPA consequently is based on the on time of the pump (32) and the total on time of all of the dump valves (34, 36) in the electro-hydraulic control system.
摘要翻译：通过对液压制动系统的低压蓄能器（LPA）中的液压制动液的量进行建模，可控制地限制用于液压制动系统的电液控制系统的泵（32）的接通时间的方法和系统。传感器（24）感测车辆相应车轮（20）的轮速。包括隔离和排放阀的控制阀（34,36）与泵（32）一起改变了LPA中制动液的量。电耦合到泵（32），控制阀（34,36）和车轮速度传感器（24）的控制单元（26）最初基于所感测的车轮速度检测电液控制事件，然后激活控制阀（34,36）和泵（32），其改变LPA中的制动流体的量。控制单元（26）在激活期间对LPA中的制动流体的量进行建模，并且基于LPA中的制动流体的建模量来控制泵（32）的状态。因此，LPA中的制动液的建模量基于泵（32）的接通时间和电液控制系统中的所有卸载阀（34,36）的总接通时间。

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