公开(公告)号：US20140261254A1

公开(公告)日：2014-09-18

申请号：US13804620

申请日：2013-03-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： EUGENE V. GONZE ,  George M. Claypole ,  Yue-Ming Chen

IPC: F01P7/16

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。

公开(公告)号：US20160047374A1

公开(公告)日：2016-02-18

申请号：US14495265

申请日：2014-09-24

Applicant: GM Global Technology Operations LLC

Inventor： EUGENE V. GONZE ,  VIJAY RAMAPPAN ,  YUE-MING CHEN

IPC: F04B51/00 ,  F01P11/14

CPC classification number: F01P11/18 ,  F01P5/14 ,  F01P11/14 ,  F04B51/00 ,  G01F15/005

Abstract: A pump current module determines a first current flowing through an electric engine coolant pump based on a coolant valve position. A current error module receives a second current flowing through the electric engine coolant pump measured using a current sensor and determines a current error based on a difference between the first current and the second current. A fault module indicates whether a fault is present based on the current error.

Abstract translation: 泵电流模块基于冷却剂阀位置确定流过电动发动机冷却剂泵的第一电流。 电流误差模块接收使用电流传感器测量的流过电动发动机冷却剂泵的第二电流，并基于第一电流和第二电流之间的差确定电流误差。 故障模块根据当前错误指示是否存在故障。

公开(公告)号：US20160047292A1

公开(公告)日：2016-02-18

申请号：US14495037

申请日：2014-09-24

Applicant: GM Global Technology Operations LLC

Inventor： EUGENE V. GONZE ,  Vijay Ramappan ,  Yue-Ming Chen

IPC: F01P7/14 ,  G01B21/16 ,  F16K5/08

CPC classification number: F01P7/14 ,  F01P7/164 ,  F01P11/14 ,  F01P2007/146 ,  F01P2025/30 ,  F01P2025/32 ,  F16K5/08 ,  G01B21/16

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。

公开(公告)号：US20160053646A1

公开(公告)日：2016-02-25

申请号：US14466289

申请日：2014-08-22

Applicant: GM Global Technology Operations LLC

Inventor： EUGENE V. GONZE ,  VIJAY RAMAPPAN ,  MICHAEL J. PARATORE, JR. ,  YUE-MING CHEN

IPC: F01N3/04 ,  F01P7/16 ,  F01N9/00

CPC classification number: F01N3/046 ,  F01N9/00 ,  F01N13/105 ,  F01N2260/024 ,  F01N2900/0408 ,  F01N2900/08 ,  F01N2900/1631 ,  F01P7/16 ,  Y02T10/20 ,  Y02T10/47

Abstract: A method is disclosed for optimizing fuel economy during an engine warm up phase of operation of an internal combustion engine. An exhaust manifold may have a coolant jacket through which a coolant may flow. A temperature of the coolant in the exhaust manifold may be determined to detect when it is at a predetermined maximum threshold, which represents a temperature threshold just below a temperature at which the coolant will begin to boil. When this threshold is reached, then a determination may be made as to a minimum rate of flow of the coolant through the exhaust manifold which maintains the coolant at about the predetermined maximum threshold, and the coolant may be flowed through the exhaust manifold at the determined minimum rate of flow.

Abstract translation: 公开了一种用于在内燃机的发动机预热阶段期间优化燃料经济性的方法。 排气歧管可以具有冷却剂套管，冷却剂可以通过冷却剂套管流动。 可以确定排气歧管中的冷却剂的温度以检测何时处于预定的最大阈值，其表示正好低于冷却剂开始沸腾的温度的温度阈值。 当达到该阈值时，可以确定通过将冷却剂保持在大约预定最大阈值的排气歧管的冷却剂的最小流速，并且冷却剂可以以确定的速度流过排气歧管 最小流量。

公开(公告)号：US20160047293A1

公开(公告)日：2016-02-18

申请号：US14495141

申请日：2014-09-24

Applicant: GM Global Technology Operations LLC

Inventor： EUGENE V. GONZE ,  YUE-MING CHEN ,  VIJAY RAMAPPAN ,  BEN W. MOSCHEROSCH

IPC: F01P7/14 ,  F01P5/10

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.

Abstract translation: 车辆的冷却剂控制系统包括第一和第二目标流量模块，目标速度模块和速度控制模块。 第一目标流量模块确定通过发动机的冷却剂的第一目标流量。 第二目标流量模块，当输入到发动机的热量变化大于预定值时，将第二目标流量设定为大于第一目标流量。 目标速度模块基于第二目标流量来确定发动机冷却剂泵的目标速度。 速度控制模块基于目标速度来控制发动机冷却剂泵的速度。

公开(公告)号：US20160047291A1

公开(公告)日：2016-02-18

申请号：US14494904

申请日：2014-09-24

Applicant: GM Global Technology Operations LLC

Inventor： EUGENE V. GONZE ,  VIJAY RAMAPPAN ,  YUE-MING CHEN

IPC: F01P7/14 ,  F01P5/10 ,  F01P3/20

CPC classification number: F01P7/14 ,  F01P3/20 ,  F01P5/10 ,  F01P7/164 ,  F01P2025/06

Abstract: A target speed module determines a target speed of an engine coolant pump of the vehicle. A speed adjustment module determines a speed adjustment based on a position of a valve, wherein a backpressure of the engine coolant pump changes when the position of the valve changes. An adjusted target speed module determines an adjusted target speed for the engine coolant pump based on the target speed and the speed adjustment. A speed control module controls a speed of the engine coolant pump based on the adjusted target speed.

Abstract translation: 目标速度模块确定车辆的发动机冷却剂泵的目标速度。 速度调节模块基于阀的位置确定速度调节，其中当阀的位置改变时，发动机冷却剂泵的背压改变。 调整后的目标速度模块基于目标速度和速度调节来确定发动机冷却剂泵的调整目标速度。 速度控制模块基于调整的目标速度来控制发动机冷却剂泵的速度。