发明名称 Apparatus and method for using transmission output torque data to control gear change
摘要 An automatic transmission includes gears, torque-transmitting mechanisms, interconnecting members, an input member and an output member. A method of controlling the automatic transmission includes data acquisition from the output shaft torque sensor, commanding a hydraulic fluid pressure pulse time and a pressure pulse value to engage a first torque-transmitting mechanism, calculating a rate-of-change of a first data output from the output shaft torque sensor, calculating a rate-of-change of a second data output from the output shaft torque sensor, comparing the results of the rate-of-change calculations and adjusting the hydraulic fluid pressure pulse time and a pressure pulse value if the rate of change of the second data output is not equal to the rate-of-change of the first data output.
申请公布号 US8224538(B2) 申请公布日期 2012.07.17
申请号 US20090616686 申请日期 2009.11.11
申请人 ZHANG ZHEN;BAI SHUSHAN;MATEN JOHN R.;GM GLOBAL TECHNOLOGY OPERATIONS LLC 发明人 ZHANG ZHEN;BAI SHUSHAN;MATEN JOHN R.
分类号 G06F7/00 主分类号 G06F7/00
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