Control system for cooling fan assembly having variable pitch blades
    24.
    发明授权
    Control system for cooling fan assembly having variable pitch blades 有权
    具有变桨距叶片的冷却风扇组件控制系统

    公开(公告)号:US06253716B1

    公开(公告)日:2001-07-03

    申请号:US09349274

    申请日:1999-07-07

    IPC分类号: F01P702

    摘要: A fan assembly (10) which incorporates variable pitched blades (152), is driven by the engine of a vehicle and is used in cooling the engine. A control system (248) is provided which is responsive to at least one signal representative of an operating parameter of the engine and a second signal indicative of a desired cooling requirement to establish an efficient pitch for the blades of the fan assembly. In one embodiment, the speed of the engine is sensed and used in combination with a cooling requirement signal developed by the engine control module (205) to regulate the pitch of the fan assembly. In a second embodiment, engine charge air temperature and coolant temperature signals are utilized in establishing the desired pitch. Furthermore, fuzzy logic controls (290) can be utilized to anticipate the cooling needs of the engine based on variations in the overall dynamic system as derived from information available through the engine control module.

    摘要翻译: 包括可变斜叶片(152)的风扇组件(10)由车辆的发动机驱动,并用于冷却发动机。 提供了控制系统(248),其响应于表示发动机的操作参数的至少一个信号和指示期望的冷却要求的第二信号,以建立风扇组件的叶片的有效间距。 在一个实施例中,发动机的速度被感测并与由发动机控制模块(205)开发的冷却要求信号结合使用,以调节风扇组件的桨距。 在第二实施例中,利用发动机增压空气温度和冷却剂温度信号来建立所需的间距。 此外,模糊逻辑控制(290)可以用于基于通过发动机控制模块获得的信息导出的总体动态系统的变化来预测发动机的冷却需求。

    Abnormality detector apparatus for a coolant apparatus for cooling an engine
    25.
    发明授权
    Abnormality detector apparatus for a coolant apparatus for cooling an engine 失效
    用于冷却发动机的冷却剂装置的异常检测装置

    公开(公告)号:US06200021B1

    公开(公告)日:2001-03-13

    申请号:US09162442

    申请日:1998-09-29

    IPC分类号: G01K1500

    摘要: An abnormality detector apparatus for an engine water-cooling apparatus has an electronic control unit (ECU) for precisely and quickly determining and detecting an operation abnormality of a thermostat or a water temperature sensor. After the engine is started, the ECU calculates, over time, an engine heat generation quantity, an estimated cooling water temperature or the like on the basis of various engine operating condition parameters, such as cooling water temperature, intake temperature, engine revolution speed, amount of intake air, and the like. After the elapse of a predetermined time, the ECU compares the estimated cooling water temperature and the cooling water temperature actually detected by the water temperature sensor. If the relationship therebetween meets a predetermined condition, the ECU determines whether there is an abnormality in the operating condition of the thermostat and/or the cooling water temperature sensor.

    摘要翻译: 用于发动机水冷却装置的异常检测装置具有用于精确且快速地确定和检测恒温器或水温传感器的操作异常的电子控制单元(ECU)。 发动机启动后,ECU根据各种发动机运转状态参数(如冷却水温度,进气温度,发动机转速等),随时间推算发动机发热量,估计冷却水温度等, 进气量等。 在经过预定时间之后,ECU比较估计的冷却水温度和由水温传感器实际检测的冷却水温度。 如果它们之间的关系满足预定条件,则ECU确定恒温器和/或冷却水温度传感器的运行状态是否有异常。

    Device and method for improving performance of a motor vehicle

    公开(公告)号:US10001051B2

    公开(公告)日:2018-06-19

    申请号:US13381482

    申请日:2010-06-28

    IPC分类号: F01P7/02 F01P7/08

    摘要: A method for improving the performance of a motor vehicle which has a cooler and a fan for cooling the vehicle's engine, the method includes detecting (s410) a temperature-related parameter which affects the engine's temperature during specific cooling conditions; and activating operation of the fan when the engine's temperature fulfils a predetermined condition; determining the (s440) predetermined condition on the basis of outcome as regards engine temperature over a predetermined period of time, and/or outcome as regards the detected parameter over a predetermined period of time. A computer program product includes program code (P) for a computer (200; 210) for implementing a method according to the invention. Also the device that performs the method and a motor vehicle equipped with the device are disclosed.