公开(公告)号：US5323318A

公开(公告)日：1994-06-21

申请号：US941189

申请日：1992-09-04

申请人： Yusuke Hasegawa ,  Yoshihisa Iwaki ,  Ichiro Sakai

发明人： Yusuke Hasegawa ,  Yoshihisa Iwaki ,  Ichiro Sakai

IPC分类号： B60W50/00 ,  F16H61/00 ,  F16H61/02 ,  F16H61/662 ,  F16H61/684 ,  B60K41/26 ,  F16D41/24 ,  G06F15/50 ,  G06G7/70

CPC分类号： F16H61/66254 ,  F16H61/0213 ,  B60W2050/0057 ,  F16H2061/0015 ,  F16H2061/0081 ,  F16H61/684 ,  Y10S706/90 ,  Y10T477/623 ,  Y10T477/647 ,  Y10T477/65

摘要： A system for controlling multi-step geared continuously variable automatic transmission in which a gear ratio to be shifted to is determined by retrieving a conventional preestablished shift diagram by an engine load and a vehicle speed. A fuzzy reasoning is carried out using parameters such as a driving resistance to correct the gear ratio obtained by retrieved. Alternatively, the fuzzy reasoning is carried out to correct one of the engine load and vehicle speed detected and using the corrected value, the shift diagram is retrieved to determine a gear ratio to be shifted to. Further, another fuzzy reasoning is carried out to ascertain the driver's intention to decelerate and the first fuzzy reasoning is carried out using the inferred value so as to reflect the driver's intention in the shift control.

摘要翻译： 一种用于控制多级齿轮式无级变速自动变速器的系统，其中通过由发动机负载和车辆速度检索常规的预先设定的变速图来确定要移动的变速比。 使用诸如驱动阻力的参数来进行模糊推理，以校正通过检索获得的齿轮比。 或者，执行模糊推理以校正检测到的发动机负载和车辆速度之一并使用校正值，检索变速图以确定要移动的变速比。 此外，进行另一种模糊推理以确定驾驶员减速的意图，并且使用推断的值来执行第一模糊推理，以便反映驾驶员在换档控制中的意图。

公开(公告)号：US5079705A

公开(公告)日：1992-01-07

申请号：US367461

申请日：1989-06-16

申请人： Ichiro Sakai ,  Yasuhisa Arai ,  Hiroki Matsui ,  Masataka Yamamoto

发明人： Ichiro Sakai ,  Yasuhisa Arai ,  Hiroki Matsui ,  Masataka Yamamoto

IPC分类号： F16H61/00 ,  B60W50/00 ,  F16H61/02 ,  F16H61/08 ,  G05B13/02

CPC分类号： F16H61/0213 ,  B60W2050/0057 ,  F16H2059/743 ,  F16H2061/0081 ,  F16H2061/161 ,  F16H61/682 ,  Y10S706/90 ,  Y10T477/692 ,  Y10T477/693 ,  Y10T477/6937

摘要： A system for controlling automatic transmissions equipped with a motor vehicle utilizing fuzzy logic. In the system, fuzzy production rules have been prepared based upon an expert driver's judgments and operation made on a vehicle with a manually shifted transmission. Various operating conditions including opening degree of a throttle valve and road speed of the vehicle are detected and from the detected value, various predictions are made such as an appropriateness of vehicle response to a gearshift intended by the driver and engine output change that would occur should the transmission be shifted to a given gear. These measured or estimated values are put on a common scale named universe of discourse and each membership values degree of the aforesaid rules is successively calculated. Among the rules, one rule is finally selected and according to a gear position indicated in the selected rule, the current gear is shifted up or down or is held at the present position.