公开(公告)号：US20160290498A1

公开(公告)日：2016-10-06

申请号：US14678361

申请日：2015-04-03

Applicant: GM Global Technology Operations LLC

Inventor： Mehmet Emin INAN ,  Paul A. ADAM

IPC: F16H61/02 ,  G01L3/00 ,  G01P5/00 ,  G01K13/02 ,  G01R19/00

CPC classification number: G01L3/00 ,  F16H61/0204 ,  G01K7/427 ,  G01K13/02 ,  G01K2013/026 ,  G01P3/46 ,  G01R19/0092

Abstract: A system including a current module, a second module, and a temperature module. The current module is configured to determine an amount of current drawn from a power source by a hydraulic pump of a transmission based on a current signal received from a current sensor. The current signal is indicative of the current drawn by the hydraulic pump. The second module is configured to determine (i) a speed of the hydraulic pump based on a speed signal received from a speed sensor, or (ii) an output torque of the hydraulic pump based on the amount of current drawn by the hydraulic pump. The speed signal is indicative of the speed of the hydraulic pump. The temperature module is configured to estimate a temperature of a hydraulic fluid circulated by the hydraulic pump based on (i) the amount of current drawn by the hydraulic pump, and (ii) the speed or the output torque of the hydraulic pump. The second module is configured to adjust the speed of the hydraulic pump based on the temperature of the hydraulic fluid.

Abstract translation: 一种包括当前模块，第二模块和温度模块的系统。 当前模块被配置为基于从电流传感器接收的当前信号来确定由变速器的液压泵从电源抽取的电流量。 电流信号表示液压泵吸出的电流。 第二模块被配置为基于从速度传感器接收的速度信号来确定（i）液压泵的速度，或者（ii）基于由液压泵吸取的电流量的液压泵的输出扭矩。 速度信号表示液压泵的速度。 温度模块被配置为基于（i）由液压泵吸取的电流量，以及（ii）液压泵的速度或输出扭矩来估计由液压泵循环的液压流体的温度。 第二模块被配置为基于液压流体的温度来调节液压泵的速度。