Coolant control systems and methods to prevent coolant boiling

    公开(公告)号:US10480391B2

    公开(公告)日:2019-11-19

    申请号:US14495141

    申请日:2014-09-24

    Abstract: A coolant control system of a vehicle includes first and second target flowrate modules, a target speed module, and a speed control module. The first target flowrate module determines a first target flowrate of coolant through an engine. The second target flowrate module, when a change in heat input to the engine is greater than a predetermined value, sets a second target flowrate to greater than the first target flowrate. The target speed module determines a target speed of an engine coolant pump based on the second target flowrate. The speed control module controls a speed of the engine coolant pump based on the target speed.

    Coolant control systems and methods for warming engine oil and transmission fluid
    3.
    发明授权
    Coolant control systems and methods for warming engine oil and transmission fluid 有权
    冷却液控制系统及发动机油和变速箱油的加温方法

    公开(公告)号:US09581075B2

    公开(公告)日:2017-02-28

    申请号:US13804620

    申请日:2013-03-14

    CPC classification number: F01P11/08

    Abstract: A coolant control system of a vehicle includes a target pressure module and a thermostat valve control module. The target pressure module determines a target pressure of coolant in a coolant path between a thermostat valve and at least one of an engine oil heat exchanger and a transmission fluid heat exchanger. The thermostat valve control module closes the thermostat valve and blocks coolant flow out of an engine when a temperature of coolant within the engine is less than a predetermined temperature. When the temperature is greater than the predetermined temperature, the thermostat valve control module controls opening of the thermostat valve to the coolant path based on the target pressure.

    Abstract translation: 车辆的冷却剂控制系统包括目标压力模块和恒温阀控制模块。 目标压力模块确定恒温阀与发动机油热交换器和变速器流体换热器中的至少一个之间的冷却剂路径中的冷却剂的目标压力。 当发动机内的冷却剂温度低于预定温度时,恒温阀控制模块关闭恒温阀并阻止冷却剂流出发动机。 当温度大于预定温度时,恒温阀控制模块基于目标压力控制恒温阀对冷却剂通道的打开。

    Engine off cooling strategy
    4.
    发明授权

    公开(公告)号:US09964022B2

    公开(公告)日:2018-05-08

    申请号:US14669097

    申请日:2015-03-26

    Abstract: A system includes a coolant management module that, determines whether an engine of a vehicle is off, determines, in response to a determination that the engine is off, whether a heater associated with the engine is on, receives one of a plurality of engine coolant temperature (ECT) measurements and a respective location associated with the received ECT measurement, and communicates the respective location and an instruction to direct engine coolant flow from the respective location to one of the heater and engine. The system also includes a coolant control module that selectively actuates one or more coolant control valves based on the respective location and the instruction.

    SYSTEM AND METHOD FOR DIAGNOSING A FAULT IN A PARTITIONED COOLANT VALVE
    5.
    发明申请
    SYSTEM AND METHOD FOR DIAGNOSING A FAULT IN A PARTITIONED COOLANT VALVE 有权
    用于诊断分离式冷却液阀故障的系统和方法

    公开(公告)号:US20160047292A1

    公开(公告)日:2016-02-18

    申请号:US14495037

    申请日:2014-09-24

    Abstract: A system according to the principles of the present disclosure includes a coolant valve, a valve control module, and a fault diagnostic module. The coolant valve includes a first valve chamber, a second valve chamber, and a partition disposed between the first and second valve chambers. The coolant valve further includes a first end stop disposed on a first outer perimeter surface of the first valve chamber and a second end stop disposed on a second outer perimeter surface of the second valve chamber. The valve control module rotates the coolant valve in a first direction and in a second direction that is opposite from the first direction. The fault diagnostic module diagnoses a fault in the coolant valve based on a measured position of the coolant valve as the coolant valve is rotated in the first and second directions.

    Abstract translation: 根据本公开的原理的系统包括冷却剂阀,阀控制模块和故障诊断模块。 冷却剂阀包括第一阀室,第二阀室和设置在第一和第二阀室之间的隔板。 所述冷却剂阀还包括设置在所述第一阀室的第一外周表面上的第一端部止动件和设置在所述第二阀室的第二外周表面上的第二端部止动件。 阀控制模块沿与第一方向相反的第一方向和第二方向旋转冷却剂阀。 故障诊断模块基于冷却剂阀在第一和第二方向旋转时的测量位置来诊断冷却剂阀中的故障。

    Engine Off Cooling Strategy
    9.
    发明申请
    Engine Off Cooling Strategy 有权
    发动机冷却策略

    公开(公告)号:US20160281584A1

    公开(公告)日:2016-09-29

    申请号:US14669097

    申请日:2015-03-26

    Abstract: A system includes a coolant management module that, determines whether an engine of a vehicle is off, determines, in response to a determination that the engine is off, whether a heater associated with the engine is on, receives one of a plurality of engine coolant temperature (ECT) measurements and a respective location associated with the received ECT measurement, and communicates the respective location and an instruction to direct engine coolant flow from the respective location to one of the heater and engine. The system also includes a coolant control module that selectively actuates one or more coolant control valves based on the respective location and the instruction.

    Abstract translation: 一种系统包括:冷却剂管理模块,其确定车辆的发动机是否关闭,响应于发动机关闭的确定,确定与发动机相关联的加热器是否接通,接收多个发动机冷却剂中的一个 温度(ECT)测量和与接收到的ECT测量相关联的相应位置,并且传送相应位置和指令,以将发动机冷却剂流从相应位置引导到加热器和发动机之一。 该系统还包括冷却剂控制模块,其基于相应的位置和指令选择性地致动一个或多个冷却剂控制阀。

    COOLANT CONTROL SYSTEMS AND METHODS FOR WARMING ENGINE OIL AND TRANSMISSION FLUID
    10.
    发明申请
    COOLANT CONTROL SYSTEMS AND METHODS FOR WARMING ENGINE OIL AND TRANSMISSION FLUID 有权
    冷却液控制系统和用于燃烧发动机油和变速箱油的方法

    公开(公告)号:US20140261254A1

    公开(公告)日:2014-09-18

    申请号:US13804620

    申请日:2013-03-14

    CPC classification number: F01P11/08

    Abstract: A coolant control system of a vehicle includes a target pressure module and a thermostat valve control module. The target pressure module determines a target pressure of coolant in a coolant path between a thermostat valve and at least one of an engine oil heat exchanger and a transmission fluid heat exchanger. The thermostat valve control module closes the thermostat valve and blocks coolant flow out of an engine when a temperature of coolant within the engine is less than a predetermined temperature. When the temperature is greater than the predetermined temperature, the thermostat valve control module controls opening of the thermostat valve to the coolant path based on the target pressure.

    Abstract translation: 车辆的冷却剂控制系统包括目标压力模块和恒温阀控制模块。 目标压力模块确定恒温阀与发动机油热交换器和变速器流体换热器中的至少一个之间的冷却剂路径中的冷却剂的目标压力。 当发动机内的冷却剂温度低于预定温度时,恒温阀控制模块关闭恒温阀并阻止冷却剂流出发动机。 当温度大于预定温度时,恒温阀控制模块基于目标压力控制恒温阀对冷却剂通道的打开。

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