公开(公告)号：US20170232949A1

公开(公告)日：2017-08-17

申请号：US15041667

申请日：2016-02-11

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Xuefeng T. Tao ,  Parsa Mahmoudieh ,  Michael Chernyak ,  Zhenhu Zhuang

IPC: B60W10/10 ,  B60W10/06

CPC classification number: B60W10/10 ,  B60W10/06 ,  B60W50/0205 ,  B60W2050/0215 ,  B60W2510/0676 ,  B60W2510/107 ,  B60W2710/06 ,  B60W2710/10 ,  F16H57/0413 ,  F16H59/72 ,  F16H61/688 ,  F16H2061/0034 ,  F16H2061/0209

Abstract: A powertrain system including an engine and transmission is described, and includes a temperature sensor disposed to monitor a hydraulic fluid for the transmission. A method for monitoring the temperature sensor includes monitoring engine operation including engine coolant temperature and monitoring a signal output from the temperature sensor. An indicated temperature slope is determined based upon the signal output from the temperature sensor, and a temperature region associated with the engine coolant temperature is determined. Performance of the temperature sensor is evaluated based upon the indicated temperature slope and minimum and maximum temperature slope thresholds that are associated with the temperature region.

公开(公告)号：US10106142B2

公开(公告)日：2018-10-23

申请号：US15041667

申请日：2016-02-11

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Xuefeng T. Tao ,  Parsa Mahmoudieh ,  Michael Chernyak ,  Zhenhu Zhuang

IPC: B60W10/10 ,  B60W10/06 ,  B60W50/02 ,  F16H57/04

Abstract: A powertrain system including an engine and transmission is described, and includes a temperature sensor disposed to monitor a hydraulic fluid for the transmission. A method for monitoring the temperature sensor includes monitoring engine operation including engine coolant temperature and monitoring a signal output from the temperature sensor. An indicated temperature slope is determined based upon the signal output from the temperature sensor, and a temperature region associated with the engine coolant temperature is determined. Performance of the temperature sensor is evaluated based upon the indicated temperature slope and minimum and maximum temperature slope thresholds that are associated with the temperature region.