发明名称 GEAR SHIFT CONTROL DEVICE FOR AUTOMATIC TRANSMISSION
摘要 PROBLEM TO BE SOLVED: To perform control without worsening of a gear shift shock by a method wherein control is effected such that, when an oil temperature is below a set value and during a time between the starting of a torque phase and the starting of an inertia phase, the drive period of an actuator for control on the release side is increased compared with a drive period in which drive is effected during control of gear shift. SOLUTION: An oil temperature and a set oil temperature are detected and comparison therebetween is effected. After based on a comparing result, the drive frequency of a hydraulic actuator 15 on the release side is decided and the drive frequency is set, the starting of a torque phase is decided. A gear ratio is calculated from the number of revolutions of an input shaft and the number of revolutions of an output shaft, and a reference gear ratio and a real gear ratio are compared with each other. When it is discriminated that a ratio therebetween is high, progress to control of an inertia phase is effected. This constitution ensures gear shift quality even during a low temperature.
申请公布号 JPH09280354(A) 申请公布日期 1997.10.28
申请号 JP19960086367 申请日期 1996.04.09
申请人 NISSAN MOTOR CO LTD 发明人 NISHIO MOTOHARU;TAKEDA KAZUHIRO
分类号 F16H61/04;(IPC1-7):F16H61/04 主分类号 F16H61/04
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