An improved adaptive line pressure control which detects the occurrence of run-through and overrides the normal adaptive pressure control in response to a detected run-through condition so that the line pressure during subsequent shifting is increased instead of decreased. A run-through condition is detected by measuring and comparing first and second time indications corresponding, respectively, to the interval of ratio change during the shift (shift time), and the interval between the generation of a shift command and the actual initiation of ratio change (delay time). <IMAGE>
申请公布号
DE69321639(T2)
申请公布日期
1999.04.15
申请号
DE1993621639T
申请日期
1993.03.02
申请人
GENERAL MOTORS CORP., DETROIT, MICH., US
发明人
POLLACK, SCOTT BRADLEY, LIVONIA, MICHIGAN 48154, US;WANAMAKER, JOSEPH LEE, TECUMSEH, MICHIGAN 49286, US