发明名称 Hydraulic control system for an automatic transmission
摘要 The hydraulic control system includes a driving condition detection unit, a transmission control unit, and a driving unit. The driving condition detection unit detects driving conditions of a vehicle. The transmission control unit performs variable line pressure control using a minimum line pressure and a line-pressure-decreasing gradient calculated based on driving condition data detected by the driving condition detection unit when the driving conditions satisfy variable line pressure control entrance conditions. The driving unit adjusts a duty ratio of line pressure applied to friction elements according to a line pressure control signal generated by the transmission control unit.
申请公布号 US2004005956(A1) 申请公布日期 2004.01.08
申请号 US20020335000 申请日期 2002.12.31
申请人 YOU BEONG-YEOL 发明人 YOU BEONG-YEOL
分类号 F16H61/06;F16H59/24;F16H59/36;F16H59/38;F16H59/72;F16H61/00;F16H61/04;F16H61/14;(IPC1-7):B60K41/04 主分类号 F16H61/06
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