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公开(公告)号:US4683996A
公开(公告)日:1987-08-04
申请号:US685556
申请日:1984-12-24
IPC分类号: B60W10/02 , B60W10/10 , B60W30/18 , B60W50/00 , F16D23/10 , F16D48/06 , F16H59/40 , F16H59/42 , F16H59/44 , F16H59/46 , F16H61/04 , F16H61/682 , F16H63/46 , F16D21/04
CPC分类号: F16H61/0403 , B60W10/02 , B60W10/10 , B60W10/11 , B60W30/18 , B60W30/1819 , B60W2050/0045 , F16H59/40 , F16H59/42 , F16H59/44 , F16H59/46 , F16H61/682 , F16H63/46 , Y10T477/6392 , Y10T477/6394 , Y10T477/6414
摘要: A method of controlling a synchromesh type automatic transmission of a vehicle such as an automobile, including the steps of releasing a clutch for connecting an engine and the transmission in response to a speed change command, shifting the transmission from one speed position to a neutral position, shifting the transmission from the neutral position to a subsequent speed position, and applying the clutch. The double-clutching operation is conducted if a load upon synchronization during the speed changing operation exceeds a predetermined level, to once apply the clutch and subsequently release the clutch again while the transmission is in the neutral position. Thus, the synchronization load can be dropped to prevent any so-called "under-synchronization" in the transmission. The synchronization load is detected in terms of the difference between the r.p.m. of the input shaft of the transmission and the product of the vehicle speed or the r.p.m. of the output shaft of the transmission and the reduction ratio.
摘要翻译: 一种控制诸如汽车的车辆的同步啮合式自动变速器的方法,包括根据变速指令释放用于连接发动机和变速器的离合器的步骤,将变速器从一个速度位置移动到中立位置 将变速器从中立位置移动到随后的速度位置,并施加离合器。 如果在变速操作期间的同步时的负载超过预定水平,一旦施加离合器并随后在变速器处于中立位置时再次释放离合器,则进行双重离合操作。 因此,可以降低同步负载,以防止传输中的任何所谓的“不同步”。 根据r.p.m.之间的差异来检测同步负载。 的变速器的输入轴和车速的乘积或r.p.m。 的输出轴和减速比。