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11. 发明授权

US5522650A Method and system for controllably restricting the on time of a vehicular pump in an electro-hydraulic control system 失效
标题翻译：用于可控制地限制电动液压控制系统中的车辆泵的接通时间的方法和系统
公开(公告)号：US5522650A
公开(公告)日：1996-06-04
申请号：US417651
申请日：1995-04-05
申请人： Dan Negrin , Mark S. Luckevich , Brian C. Tuck
发明人： Dan Negrin , Mark S. Luckevich , Brian C. Tuck
IPC分类号： B60T8/40 , 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 of an electro-hydraulic control system for a hydraulic brake system by modeling the amount of hydraulic brake fluid in a low pressure accumulator (LPA) of the hydraulic brake system. Sensors sense wheel speed of their respective wheels of a vehicle. Control valves, including isolation and dump valves, together with the pump, vary the amount of brake fluid in the LPA. A control unit electrically coupled to the pump, the control valves and the wheel speed sensors, initially detects an electro-hydraulic control event based on the sensed wheel speeds and then activates the control valves and pump which vary the amount of brake fluid in the LPA. The control unit models the amount of brake fluid in the LPA during the activation and controls the state of the pump based on the modeled amount of brake fluid in the LPA. The modeled amount of brake fluid in the LPA consequently is based on the on time of the pump and the total on time of all of the dump valves 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的接通时间的方法和系统。传感器感测车辆相应车轮的车轮速度。控制阀，包括隔离和排放阀，与泵一起，改变LPA中制动液的量。电耦合到泵，控制阀和车轮速度传感器的控制单元最初基于所感测的车轮速度来检测电液控制事件，然后激活控制阀和泵，其改变LPA中的制动流体的量。控制单元在激活期间模拟LPA中的制动液量，并根据LPA中制动液的建模量控制泵的状态。因此，LPA中的制动液的建模量是基于泵的接通时间和电液控制系统中所有排放阀的总和准时。

12. 发明授权

US5388895A Method and system for detecting and correcting vehicle speed reference signals in anti-lock brake systems 失效
标题翻译：用于在防抱死制动系统中检测和校正车速参考信号的方法和系统
公开(公告)号：US5388895A
公开(公告)日：1995-02-14
申请号：US100452
申请日：1993-07-30
申请人： Dan Negrin
发明人： Dan Negrin
IPC分类号： B60T8/172 , B60T8/66 , B60T8/32
CPC分类号： B60T8/172 , B60T2250/042
摘要： A method and system for correcting an overestimated vehicle reference speed is presented. In one embodiment, speed, slip, and acceleration quantities are computed for at least one wheel of a vehicle. The speed, slip, and acceleration quantities are compared to selected speed, slip, and acceleration thresholds, respectively. A count is incremented if the quantities are consistent with at least one vehicle reference speed being overestimated. The existence of at least one overestimated vehicle reference speed is detected when the count attains a selected threshold. The vehicle reference speeds are modified when the overestimated vehicle reference speed is detected.
摘要翻译：提出了一种用于校正过高车辆参考速度的方法和系统。在一个实施例中，针对车辆的至少一个车轮计算速度，滑移和加速度量。将速度，滑差和加速量分别与选定的速度，滑差和加速度阈值进行比较。如果数量与至少一个被高估的车辆参考速度一致，则计数递增。当计数达到选定的阈值时，检测到至少有一个过高的车辆基准速度的存在。当检测到过高的车辆基准速度时，修改车辆基准速度。

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