公开(公告)号：US5970821A

公开(公告)日：1999-10-26

申请号：US136956

申请日：1998-08-20

申请人： Hideo Koyama ,  Masamitsu Hirano ,  Hiroyuki Kimura ,  Takeo Furuta ,  Masatoshi Nishina

发明人： Hideo Koyama ,  Masamitsu Hirano ,  Hiroyuki Kimura ,  Takeo Furuta ,  Masatoshi Nishina

IPC分类号： B60K28/16 ,  F16H59/44 ,  F16H59/46 ,  F16H59/50 ,  F16H59/56 ,  F16H61/16

CPC分类号： F16H61/16 ,  B60K28/165 ,  B60W2510/1045 ,  B60W2520/10 ,  F16H2059/467 ,  F16H2059/506 ,  F16H59/44 ,  F16H59/56 ,  Y10T74/19153

摘要： It is an object of the present invention to provide a control system for an automatic transmission, which operates so that when slipping of drive wheels is generated at the starting of a vehicle on ice or the like, upshifting from a second gear shift stage to a third gear shift stag is prohibited. However, when the pseudo slipping state of the drive wheels is detected with the locking or unlocking of the drive wheels, the undesirable prohibition of the upshifting of the automatic transmission is avoided. A slip rate of a torque converter is determined on the basis of an engine revolution-speed (a torque converter input rotation-speed) and an automatic transmission input rotation-speed (a torque converter output rotation-speed). When the slip rate exceeds, for example, 102%, so that the driving force is transmitted from the drive wheels toward the engine, it is determined that the pseudo slipping state attendant to the locking or unlocking of the drive wheels has been detected, thereby canceling the prohibition of the upshifting of the automatic transmission.

摘要翻译： 本发明的目的是提供一种用于自动变速器的控制系统，其操作使得当在冰等上的车辆起动时产生驱动轮的滑动时，从第二档位升档到 禁止三档换档。 然而，当通过驱动轮的锁定或解锁来检测到驱动轮的假滑动状态时，避免了不期望的禁止自动变速器的升档。 基于发动机转速（变矩器输入转速）和自动变速器输入转速（变矩器输出转速）来确定变矩器的转速。 当滑移率超过例如102％时，使得驱动力从驱动轮向发动机传递，则确定已经检测到与驱动轮的锁定或解锁有关的伪滑动状态，从而 取消禁止自动变速器升档。

公开(公告)号：US5931762A

公开(公告)日：1999-08-03

申请号：US137102

申请日：1998-08-20

申请人： Hideo Koyama ,  Masamitsu Hirano ,  Shirou Godai ,  Takeo Furuta ,  Norio Nakauchi

发明人： Hideo Koyama ,  Masamitsu Hirano ,  Shirou Godai ,  Takeo Furuta ,  Norio Nakauchi

IPC分类号： F16H59/50 ,  F16H61/16 ,  F16H61/06

CPC分类号： F16H61/16 ,  F16H2059/506 ,  Y10T477/692 ,  Y10T477/6937 ,  Y10T477/69383

摘要： When slipping is generated during the upshifting from a first gear shift stage to a second gear shift stage on ice or the like, a control for prohibiting the upshifting from the second gear shift stage to a third gear shift stage can be carried out precisely. A control system is designed so that when a slipping state is detected on ice having a lower road surface friction coefficient by a slipping state determining device, the upshifting of an automatic transmission from a second gear shift stage to a third gear shift stage is prohibited. In this control system, the time required for the upshifting from a first gear shift stage to the second gear shift stage is measured. If such time is shorter than a first predetermined time, it is determined that a slipping has been generated during the upshifting, and the upshifting from the second gear shift stage to the third gear shift stage is prohibited for a second predetermined time. Thus, even when the determination of the slipping state by the slipping-state determining device is not in time, the further upshifting of the automatic transmission is prohibited. Therefore, it is possible to reliably avoid the carrying-out of undesirable upshifting.

摘要翻译： 在从第一变速级升档到第二变速级在冰等上升档时产生滑动时，可以精确地执行用于禁止从第二档位升档到第三档位的升档的控制。 控制系统被设计成使得当通过滑动状态确定装置在具有较低路面摩擦系数的冰上检测到滑动状态时，禁止将自动变速器从第二换档级升档到第三档位。 在该控制系统中，测量从第一档位到第二档位的升档所需的时间。 如果这样的时间短于第一预定时间，则确定在升档期间已经产生滑动，并且在第二预定时间内禁止从第二换档级到第三档位的升档。 因此，即使当滑移状态确定装置的滑动状态的确定不及时时，禁止进一步升高自动变速器。 因此，可以可靠地避免不希望的升档。