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。

    System and method for controlling fan activation based on intake manifold air temperature and time in an EGR system
    3.
    发明授权
    System and method for controlling fan activation based on intake manifold air temperature and time in an EGR system 失效
    基于进气歧管空气温度和EGR系统中的时间控制风扇启动的系统和方法

    公开(公告)号:US06880497B1

    公开(公告)日:2005-04-19

    申请号:US10670589

    申请日:2003-09-25

    摘要: A method for controlling at least one engine cooling fan for a compression ignition internal combustion engine, the method includes turning on the at least one cooling fan when an intake manifold air temperature is equal to or greater than a predetermined turn-on threshold temperature for a predetermined turn-on time, and turning off the at least one cooling fan when the intake manifold air temperature is equal to or less than a predetermined turn-off threshold temperature for a predetermined turn-off time, wherein the predetermined turn-on threshold temperature is greater than the predetermined turn-off threshold temperature.

    摘要翻译: 一种用于控制用于压缩点火内燃机的至少一个发动机冷却风扇的方法,所述方法包括当进气歧管空气温度等于或大于预定的接通阈值温度时,打开​​所述至少一个冷却风扇 预定的开启时间,并且当进气歧管空气温度等于或小于预定关闭时间的预定关闭阈值温度时,关闭所述至少一个冷却风扇,其中所述预定开启阈值温度 大于预定的关断阈值温度。

    Maintenance alert system for heavy-duty trucks
    7.
    发明授权
    Maintenance alert system for heavy-duty trucks 失效
    重型卡车维修警戒系统

    公开(公告)号:US06587767B2

    公开(公告)日:2003-07-01

    申请号:US09960866

    申请日:2001-09-21

    IPC分类号: G11B502

    摘要: A real-time maintenance alert system for use in a heavy duty truck having an engine including an engine controller having a communications data link is provided. The system includes an engine item sensor and a non-engine item sensor. Control logic at the engine controller produces an output signal at the data link in response to the presence of an engine item real-time fault condition. A display device transmits and receives information over the data link, and processes the control logic output signal. The display device generates an output signal indicative of the engine item status. Further, the display device directly receives and processes the non-engine item sensor output signal, and generates an output signal indicative of the non-engine item status.

    摘要翻译: 提供一种用于具有发动机的重型卡车的实时维护警报系统,所述发动机包括具有通信数据链路的发动机控制器。 该系统包括发动机物品传感器和非发动机物品传感器。 引擎控制器的控制逻辑在数据链路上产生响应于引擎项目实时故障状况的存在的输出信号。 显示装置通过数据链路发送和接收信息,并处理控制逻辑输出信号。 显示装置产生指示发动机项目状态的输出信号。 此外,显示装置直接接收并处理非发动机物品传感器输出信号,并且生成表示非发动机物品状态的输出信号。

    Method and system for engine control
    8.
    发明授权
    Method and system for engine control 失效
    发动机控制方法和系统

    公开(公告)号:US6104977A

    公开(公告)日:2000-08-15

    申请号:US866523

    申请日:1997-06-04

    CPC分类号: F02D9/06 F02D41/042

    摘要: A system and method for reducing cab vibration during engine shutdown in a vehicle, including an internal combustion engine, an engine brake, and an electronic control unit for controlling the engine and the engine brake, includes logic for determining when a shutdown condition is occurring, and logic for generating a control signal to activate the engine brake during the engine shutdown. In one embodiment, the step of activating the engine brake is performed only after the engine speed has fallen below a pre-determined level. The system and method also preferably include automatically deactivating the engine brake at a pre-selected time, such as when engine RPM falls below a second threshold, to ensure that the engine brake is not activated upon restarting the engine.

    摘要翻译: 一种用于在车辆的发动机关闭期间减少驾驶室振动的系统和方法,包括用于控制发动机和发动机制动的内燃机,发动机制动器和电子控制单元,包括用于确定停机状态何时发生的逻辑, 以及用于在发动机关闭期间产生控制信号以激活发动机制动的逻辑。 在一个实施例中,仅在发动机转速下降到预定水平以下之前进行启动发动机制动的步骤。 该系统和方法还优选地包括在预先选择的时间(例如当发动机RPM低于第二阈值时)自动停用发动机制动器,以确保在重新启动发动机时发动机制动不被激活。