公开(公告)号：US09222576B2

公开(公告)日：2015-12-29

申请号：US14285877

申请日：2014-05-23

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Matthew R. Knoth ,  Eric S. Tryon ,  Lawrence A. Kaminsky ,  Scott T. Weisgerber

IPC: F16H61/4157 ,  F16H61/4008 ,  F16H61/42 ,  F16H61/46 ,  B60K17/10 ,  F16H61/00 ,  F16H61/28 ,  F16H59/74

CPC classification number: F16H61/0031 ,  B60K6/48 ,  B60K17/10 ,  F16D48/066 ,  F16D2048/0245 ,  F16D2500/30404 ,  F16D2500/3161 ,  F16D2500/3168 ,  F16D2500/5018 ,  F16H59/74 ,  F16H61/2807 ,  F16H61/4008 ,  F16H61/4157 ,  F16H61/42 ,  F16H61/46 ,  F16H2059/746 ,  F16H2312/20

Abstract: A vehicle includes a transmission, an electrically-driven fluid pump which supplies pressure to a hydraulically-actuated clutch of the transmission, and pump motor sensors positioned with respect to a pump motor of the fluid pump. The sensors are configured to measure electrical properties of the pump motor, and to output the measured electrical properties as input signals. A controller detects when the hydraulic circuit is fully charged by determining an actual speed of the pump motor. The controller calculates an average pump torque and a slope of the average pump torque for the pump motor using the input signals. A flag is set via the controller indicating that a calibrated line pressure has been attained in the hydraulic circuit when the slope of the average pump torque reaches zero and the speed of the pump motor reaches a calibrated speed.

Abstract translation: 车辆包括变速器，向变速器的液压致动离合器供应压力的电驱动流体泵和相对于流体泵的泵电动机定位的泵电动机传感器。 传感器被配置为测量泵电机的电气特性，并将测量的电气特性输出为输入信号。 控制器通过确定泵电机的实际速度来检测液压回路是否完全充满电。 控制器使用输入信号计算泵电机的平均泵转矩和平均泵转矩的斜率。 当平均泵扭矩的斜率达到零并且泵马达的速度达到校准速度时，通过控制器设置标志，指​​示在液压回路中已达到校准的管路压力。

公开(公告)号：US20150337950A1

公开(公告)日：2015-11-26

申请号：US14285877

申请日：2014-05-23

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Matthew R. Knoth ,  Eric S. Tryon ,  Lawrence A. Kaminsky ,  Scott T. Weisgerber

IPC: F16H61/00 ,  F16H59/74 ,  F16H61/28

CPC classification number: F16H61/0031 ,  B60K6/48 ,  B60K17/10 ,  F16D48/066 ,  F16D2048/0245 ,  F16D2500/30404 ,  F16D2500/3161 ,  F16D2500/3168 ,  F16D2500/5018 ,  F16H59/74 ,  F16H61/2807 ,  F16H61/4008 ,  F16H61/4157 ,  F16H61/42 ,  F16H61/46 ,  F16H2059/746 ,  F16H2312/20

Abstract: A vehicle includes a transmission, an electrically-driven fluid pump which supplies pressure to a hydraulically-actuated clutch of the transmission, and pump motor sensors positioned with respect to a pump motor of the fluid pump. The sensors are configured to measure electrical properties of the pump motor, and to output the measured electrical properties as input signals. A controller detects when the hydraulic circuit is fully charged by determining an actual speed of the pump motor. The controller calculates an average pump torque and a slope of the average pump torque for the pump motor using the input signals. A flag is set via the controller indicating that a calibrated line pressure has been attained in the hydraulic circuit when the slope of the average pump torque reaches zero and the speed of the pump motor reaches a calibrated speed.

Abstract translation: 车辆包括变速器，向变速器的液压致动离合器供应压力的电驱动流体泵和相对于流体泵的泵电动机定位的泵电动机传感器。 传感器被配置为测量泵电机的电气特性，并将测量的电气特性输出为输入信号。 控制器通过确定泵电机的实际速度来检测液压回路是否完全充满电。 控制器使用输入信号计算泵电机的平均泵转矩和平均泵转矩的斜率。 当平均泵扭矩的斜率达到零并且泵马达的速度达到校准速度时，经由控制器设置标志，指​​示在液压回路中已达到校准的管路压力。