Inhibit engine speed governor
    2.
    发明授权
    Inhibit engine speed governor 失效
    禁止发动机调速器

    公开(公告)号:US06371081B1

    公开(公告)日:2002-04-16

    申请号:US09675925

    申请日:2000-09-29

    IPC分类号: F02D4114

    摘要: An engine controller capable of operating in both a torque governing mode and a speed governing mode simultaneously, and a method of operation whereby speed governing may be enabled and disabled while simultaneously providing a valid speed request signal to the controller is disclosed. A speed governor signal having an enabled state and a disabled state is generated external to the controller and monitored by the speed governor. A speed request signal is simultaneously monitored by the speed governor. The speed governor is operative to control the speed of the engine proportional to the speed request signal while the speed governor signal is in the enabled state. The speed governor is disabled by setting the speed governor signal into the disabled state. A torque governor may also be operational within the controller. The torque governor monitors a torque request signal which it uses to control a torque generated by the engine.

    摘要翻译: 公开了能够同时向扭矩控制模式和速度调节模式两者运转的发动机控制器,以及能够使能和禁止速度调节的操作方法,同时向控制器提供有效的速度请求信号。 具有使能状态和禁用状态的调速器信号在控制器的外部产生并由调速器监视。 调速器同时监视速度请求信号。 调速器信号处于使能状态时,速度调节器用于控制与速度请求信号成比例的发动机的速度。 通过将调速器信号设置为禁用状态来禁止调速器。 扭矩调节器也可以在控制器内操作。 扭矩调节器监视用于控制发动机产生的扭矩的扭矩请求信号。

    Snow blower vehicle and method for improving snow blower vehicle performance
    3.
    发明授权

    公开(公告)号:US06640469B1

    公开(公告)日:2003-11-04

    申请号:US10157501

    申请日:2002-05-29

    IPC分类号: E01H600

    CPC分类号: E01H5/098

    摘要: A snow blower, vehicle having a blower engine and a propulsion engine is provided with a drvice for limiting the speed of operation of the snow blower vehicle if the blower engine is overloaded. A first signal is transmitted to the propulsion engine when the blower engine is overloaded and a second signal is transmitted to the propulsion engine when the blower engine is no longer being overloaded. The first signal may be provided to the propulsion engine to automatically limit the output thereof or it may be provided to generate an operator perceptible warning to the operator of the vehicle. The second signal may be provided to the propulsion engine to discontinue the limitation of the output of the propulsion engine or to stop the generation of the warning. A method of improving snow blower performance by increasing the ability of the blower engine to blow snow by limiting the output of the propulsion engine.

    摘要翻译: 具有鼓风机发动机和推进发动机的除雪机,车辆设置有用于限制如果鼓风机发动机过载的风车车辆的运行速度的设备。 当鼓风机发动机过载时,第一信号被传送到推进发动机,并且当鼓风机发动机不再过载时,第二信号被传递到推进发动机。 第一信号可以被提供给推进发动机以自动限制其输出,或者可以被提供以向车辆的操作者产生操作者可察觉的警告。 可以将第二信号提供给推进发动机以中止对推进发动机的输出的限制或停止警告的产生。 通过增加鼓风机引擎通过限制推进发动机的输出来吹雪的能力来提高除雪机性能的方法。

    Method of detecting vehicle speed sensor failure
    4.
    发明授权
    Method of detecting vehicle speed sensor failure 有权
    检测车速传感器故障的方法

    公开(公告)号:US07286917B2

    公开(公告)日:2007-10-23

    申请号:US11121829

    申请日:2005-05-04

    IPC分类号: G01M17/00

    CPC分类号: G01P21/02 G07C5/0816

    摘要: A method of detecting vehicle speed sensor failures is disclosed. The method is intended to prevent or discourage tampering with a vehicle's speed limiting system. The method includes the steps of determining whether the transmission is in neutral or whether the transmission is in its converter mode to prevent false indications of speed sensor failure under certain circumstances.

    摘要翻译: 公开了一种检测车速传感器故障的方法。 该方法旨在防止或阻止篡改车辆限速系统。 该方法包括以下步骤:确定传输是否处于中立状态,或者传输是否处于其转换器模式,以防止在某些情况下速度传感器故障的错误指示。

    Closed loop fan control using fan motor pressure feedback
    9.
    发明授权
    Closed loop fan control using fan motor pressure feedback 有权
    闭环风扇控制采用风扇电机的压力反馈

    公开(公告)号:US06273034B1

    公开(公告)日:2001-08-14

    申请号:US09572190

    申请日:2000-05-17

    IPC分类号: F01P702

    摘要: A method of controlling an internal combustion engine having a variable speed fan includes controlling the variable speed fan with closed loop control based on fan motor hydraulic pressure. A reference fan pressure is based on an applied fan request signal. The actual fan motor pressure is monitored, and an error signal is determined by comparing the reference fan pressure to the actual fan pressure. The fan is driven based on the error signal.

    摘要翻译: 一种控制具有变速风扇的内燃机的方法包括:基于风扇电动机液压控制带有闭环控制的变速风扇。 参考风扇压力基于所应用的风扇请求信号。 监视实际的风扇电机压力,并通过将参考风扇压力与实际风扇压力进行比较来确定误差信号。 风扇基于错误信号驱动。

    Method of diagnosing several systems and components by cycling the EGR valve
    10.
    发明授权
    Method of diagnosing several systems and components by cycling the EGR valve 有权
    通过循环EGR阀诊断多个系统和部件的方法

    公开(公告)号:US08649961B2

    公开(公告)日:2014-02-11

    申请号:US13236882

    申请日:2011-09-20

    IPC分类号: G01M15/10

    摘要: A method to operate an electronic controlled internal combustion engine to perform on board NOx emissions level diagnostics. In one embodiment, the method may include operating the engine to maintain a predetermined temperature for a predetermined period of time, determining whether the engine operating status is stable for one of cruise control, idle engine speed, engine torque, or high idle regeneration for a predetermined period of time, cycling the EGR valve between a first position for a predetermined period of time and then in a second position for a predetermined period of time, a determining a change in engine out NOx levels to determine whether an engine component or system is malfunctioning.

    摘要翻译: 一种操作电子控制内燃机来执行船上NOx排放水平诊断的方法。 在一个实施例中,该方法可以包括操作发动机以在预定时间段内维持预定温度,确定发动机运行状态对于巡航控制,空转发动机转速,发动机扭矩或高空转再生是否稳定 在预定时间段内,在第一位置之间将EGR阀循环预定时间段,然后在第二位置中循环预定时间段;确定发动机输出NOx水平的变化,以确定发动机部件或系统是否是 故障。