-
公开(公告)号：EP0373219A4
公开(公告)日：1992-05-13
申请号：EP88904620
申请日：1988-05-23
IPC分类号： F16H45/02 , F16H59/02 , F16H59/24 , F16H59/38 , F16H59/40 , F16H59/52 , F16H59/68 , F16H59/70 , F16H61/00 , F16H61/02 , F16H61/14 , F16H61/70
CPC分类号： F16H61/143 , F16H59/02 , F16H59/24 , F16H59/40 , F16H59/52 , F16H59/70 , F16H61/70 , F16H2059/385 , F16H2059/6807 , F16H2061/0096 , F16H2061/0209 , F16H2061/0258 , F16H2061/145 , F16H2061/146 , Y10T74/19163 , Y10T477/6351 , Y10T477/63525
-
公开(公告)号：EP0309591A4
公开(公告)日：1992-05-13
申请号：EP88903368
申请日：1988-04-11
IPC分类号： B60W10/02 , B60W10/10 , F16H59/42 , F16H59/68 , F16H59/72 , F16H61/00 , F16H61/02 , F16H61/04 , F16H61/06 , F16H61/08 , F16H61/10 , F16H61/12 , F16H61/70 , F16H5/12 , F16H5/64
CPC分类号： F16H61/702 , F16H61/0021 , F16H61/0251 , F16H61/08 , F16H61/682 , F16H2059/6807 , F16H2061/0209 , F16H2061/0451 , F16H2306/36 , Y10T74/19251
摘要： This invention relates to a method and apparatus for controlling a structure in which electronic pressure control valves (21-24) are connected separately to the clutches (H, L, 1st, 2nd) in a transmission having a two-step clutch system consisting of main speed change gears (1st, 2nd) and auxiliary speed change gears (H, L) to enable each clutch to be controlled independently. In the case where a discharge rate of a pump at the time of starting the engine is not sufficiently high with both auxiliary clutches and main clutches required to be engaged, the speed change is done by supplying a hydraulic pressure at staggered time to the clutches (H, L) in the main speed change gear and the clutches (1st, 2nd) in the auxiliary speed change gear so that the supply of a hydraulic pressure to the main clutches is started after the filling of the auxiliary clutches has been completed, whereby variations in the filling time, which is ascribed to a decrease in the discharge rate of the pump, are minimized.
-
公开(公告)号：EP0372073A4
公开(公告)日：1990-12-05
申请号：EP88906034
申请日：1988-06-24
IPC分类号： F16H59/24 , F16H59/44 , F16H59/68 , F16H61/02 , F16H61/06 , F16H61/12 , F16H61/70 , F16H5/64
CPC分类号： F16H61/0206 , F16H59/24 , F16H59/44 , F16H61/061 , F16H61/12 , F16H61/70 , F16H2059/6807 , F16H2059/683 , F16H2061/0209 , F16H2061/1204 , F16H2061/1208 , F16H2061/1216 , F16H2061/1232 , F16H2061/1252 , F16H2061/1268 , F16H2061/1276 , Y10T74/19251 , Y10T477/69383 , Y10T477/69387
摘要： When a speed is to be changed, a transmission controller of the present invention judges a load, the quantity of a remaining oil in each transmission clutch (F, R, 1-4) and a speed change path, from which stage to which stage, and changes an electrical instruction pattern to be applied to pressure control valves (51-56) for required transmission clutches in accordance with the result of this judgement so that the speed change can be made always smoothly irrespective of a driving condition. The electrical instruction (C1-C4) to be applied to each pressure control valve (51-56) is compared with an output current (I1-I6) of a drive circuit and with the output (S1-S6) of clutch pressure detection means (101-106) and clutch abnormality is detected on the basis of the result of this comparison. When abnormality is detected, suitable measures are taken to reliably prevent double engagement of clutch.
-
-
搜索结果
3 条记录 (耗时 0.009 秒)
