Method and apparatus for calibrating an electrohydraulic system
    1.
    发明授权
    Method and apparatus for calibrating an electrohydraulic system 失效
    校准电动液压系统的方法和装置

    公开(公告)号:US5623093A

    公开(公告)日:1997-04-22

    申请号:US565369

    申请日:1995-11-30

    CPC分类号: F15B19/002 E02F9/2025

    摘要: In one aspect of the present invention, an apparatus and method for calibrating an electrohydraulic system is disclosed. In accordance with the present invention, a hydraulic valve that is responsive to an electrical valve signal controllably provides hydraulic fluid flow to a hydraulic actuator. A position sensor senses the position of the hydraulic actuator and responsively produces an actuator position signal. A microprocessor based controller receives the actuator position signal and determines when the hydraulic actuator begins movement, and associates the magnitude of the electrical valve signal to a first predetermined joystick position. Thereafter, the microprocessor based controller determines when the hydraulic actuator movement reaches terminal velocity and associates the magnitude of the electrical valve signal to a second predetermined joystick position.

    摘要翻译: 在本发明的一个方面,公开了一种用于校准电动液压系统的装置和方法。 根据本发明,响应于电气阀信号的液压阀可控制地向液压致动器提供液压流体流。 位置传感器检测液压致动器的位置,并且响应地产生致动器位置信号。 基于微处理器的控制器接收致动器位置信号并确定液压致动器何时开始移动,并将电气阀信号的大小与第一预定操纵杆位置相关联。 此后,基于微处理器的控制器确定液压致动器运动何时达到终端速度,并将电动阀信号的大小与第二预定操纵杆位置相关联。

    Automatic transmission with programmable shiftpoints
    2.
    发明授权
    Automatic transmission with programmable shiftpoints 失效
    具有可编程移位点的自动变速器

    公开(公告)号:US5459658A

    公开(公告)日:1995-10-17

    申请号:US902217

    申请日:1992-06-22

    摘要: An apparatus is provided for use in a vehicle having an engine driven transmission which includes a plurality of gear ratios. The apparatus includes a sensor adapted to sense an operating parameter and responsively produce a parameter signal. A memory device includes a custom shiftpoint map for storing data which relates transmission gear ratio to the parameter signal. A programming device for allowing the custom shiftpoint map to be reprogrammed during vehicle operation. A controller is adapted to receive the vehicle speed signal, retrieve data from the custom shiftpoint map, and process the retrieved data and the parameter signal to produce a transmission control signal. An actuator is adapted to receive the transmission control signal and responsively control the transmission gear ratio.

    摘要翻译: 提供一种用于具有包括多个齿轮比的发动机驱动变速器的车辆中的装置。 该装置包括适于感测操作参数并响应地产生参数信号的传感器。 存储装置包括用于存储将传动比与参数信号相关联的数据的自定义换档点图。 一种用于允许在车辆操作期间重新编程自定义换档点图的编程装置。 控制器适于接收车速信号,从自定义换档点图中检索数据,并处理检索的数据和参数信号以产生传输控制信号。 致动器适于接收变速器控制信号并且响应地控制变速传动比。

    Apparatus for limiting horsepower output of an engine and method of
operating same
    3.
    发明授权
    Apparatus for limiting horsepower output of an engine and method of operating same 失效
    用于限制发动机的马力输出的装置及其操作方法

    公开(公告)号:US5457633A

    公开(公告)日:1995-10-10

    申请号:US200976

    申请日:1994-02-24

    摘要: A horsepower limiting engine control limits the maximum engine horsepower output during operating conditions that might result in torque outputs that are greater than the transmission component ratings. The control includes an electronic controller connected to solenoid driver circuitry, an engine speed sensor and a gear selector. The solenoid driver circuitry energizes a solenoid in response to an engine speed less than a first predetermined engine speed value. The solenoid causes a moveable stop to retract permitting the engine to produce full rated power. The electronic controller causes the solenoid circuitry to de-energize and extend the moveable stop in response to the engine speed exceeding a second predetermined engine speed value and the gear selector being in a predetermined position.

    摘要翻译: 马力限制发动机控制在运行条件下限制最大发动机功率输出,这可能导致大于传动部件额定值的扭矩输出。 控制器包括连接到螺线管驱动器电路的电子控制器,发动机转速传感器和档位选择器。 螺线管驱动器电路响应于小于第一预定发动机转速值的发动机转速来激励螺线管。 螺线管使可移动停止缩回允许发动机产生全额定功率。 电子控制器使得螺线管电路响应于发动机转速超过第二预定发动机转速值并且齿轮选择器处于预定位置而使可动止动件断电和延伸。