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公开(公告)号：US4576265A
公开(公告)日：1986-03-18
申请号：US543838
申请日：1983-10-20
CPC分类号： B60W10/06 , B60W10/02 , B60W10/04 , B60W10/107 , B60W30/18 , B60W30/1819 , F16D48/066 , B60W2710/065 , F16D2048/0278 , F16D2500/1026 , F16D2500/10412 , F16D2500/1088 , F16D2500/3021 , F16D2500/3024 , F16D2500/30426 , F16D2500/3064 , F16D2500/3067 , F16D2500/3101 , F16D2500/3108 , F16D2500/31466 , F16D2500/50224 , F16D2500/70258 , F16D2500/7027 , F16D2500/70406 , F16D2500/70418 , F16D2500/70605 , F16D2500/7109 , Y10T477/648 , Y10T477/74 , Y10T477/753
摘要： The control system comprises a starting valve wherein an engine revolution speed indicative fluid pressure and a start adjustment fluid pressure act on a spool of the valve against each other. The starting valve generates a start pressure to be used as a clutch engagement pressure for a hydraulic clutch. The start adjustment fluid pressure is generated by a start adjustment valve coupled with an electronic control unit. Under the control of the electronic control unit, the start adjustment offsets a variation in the engine revolution fluid pressure when the engine idles with the vehicle at a standstill.
摘要翻译： 控制系统包括起动阀，其中指示流体压力的发动机转速和起动调节流体压力作用在阀的阀芯上。 起动阀产生用作液压离合器的离合器接合压力的起动压力。 起动调节液压由与电子控制单元连接的起动调节阀产生。 在电子控制单元的控制下，起动调整能够抵消发动机在停车时与车辆空转时的发动机转速流体压力的变化。
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102.发明授权
公开(公告)号：US3915271A
公开(公告)日：1975-10-28
申请号：US50907474
申请日：1974-09-25
申请人： KOPPERS CO INC
发明人： HARPER PAUL DOUGLAS
IPC分类号： B63H23/18 , B63H23/28 , B63H23/30 , F16D23/02 , F16D48/06 , G01P3/60 , F16D11/04 , B60K29/02
CPC分类号： F16D23/02 , B63H23/18 , B63H23/28 , B63H23/30 , F16D48/04 , F16D48/064 , F16D2500/3021 , F16D2500/30415 , F16D2500/30426 , F16D2500/3067 , F16D2500/3166 , F16D2500/70454 , F16D2500/7109 , G01P3/60 , Y10T477/26 , Y10T477/753
摘要： An improved method and apparatus for controlling the engagement of coacting portions of primary and auxiliary power systems through the electronic detection of the speed and angular position relationships between the coacting portions and through the control of the speed of one of the power systems to achieve synchronous coupling. Sensors responsive to movement of the coacting portions of the systems generate first and second electrical signals each having electrical characteristics related to the speed and angular position of respective ones of the coacting portions of the two systems. The electrical signals are employed to sense the simultaneous occurrence of a desired speed and angular position relationship between the coacting portions of the system and the coacting portions are moved into engagement in response to the sensing of the desired relationship. A speed control signal is generated in response to the absence of the desired speed relationship between the coacting portions of the systems so as to vary the speed of one of the power sources in a direction tending to effect the desired speed relationship therebetween. The speed and angular position related electrical signals are preferably generated by pulse generators such as shaft encoders driven by the drive shafts of the power sources. The shaft encoders are arranged to provide pulses at a frequency related to shaft speed and at positions within the pulse stream indicative of the positions of coacting interlocking surfaces between driving portions of the two power sources. When, as indicated by the frequencies of the two pulse signals, a differential speed relationship within a predetermined speed difference range exists between two shafts, and when coincidence simultaneously exists between two pulses of the pulse signals, the coacting portions of the power sources are moved into engagement. Because of this coincidence requirement, engagement occurs with both proper speed and proper angular relationships between the coacting portions of the two power sources.
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