发明名称 Speed change controller for automatic transmission
摘要 <p>In a vehicle transmission wherein plural speed change ratios from a highest speed change ratio to a lowest speed change ratio are selectively applied according to a command input by a driver, a real speed change ratio of the transmission is detected. It is determined whether or not the transmission is performing a shift-down based on the input command and the real speed change ratio. A shift-down limit speed change ratio is determined based on the speed change ratio before the shift-down operation is performed, and when the engine brake of the vehicle is operating, the transmission is controlled so as not to apply a speed change ratio larger than this shift-down limit speed change ratio. Due to this, the driver does not experience an excessive engine braking sensation even when an extreme speed change command is issued. <IMAGE></p>
申请公布号 EP0890764(B1) 申请公布日期 2003.10.01
申请号 EP19980112791 申请日期 1998.07.09
申请人 NISSAN MOTOR COMPANY LIMITED 发明人 OCHIAI, TATSUO;OKAHARA, HIROFUMI
分类号 F16H61/16;F16H61/21;F16H61/662;F16H63/14;(IPC1-7):F16H61/00 主分类号 F16H61/16
代理机构 代理人
主权项
地址