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公开(公告)号：US4792902A
公开(公告)日：1988-12-20
申请号：US808186
申请日：1985-12-12
IPC分类号： F02P5/145 , F02P5/15 , F16H61/04 , B60K41/02 , F16D43/286
CPC分类号： F02P5/1455 , F02P5/1504 , F16H61/0437 , B60W2510/0638 , B60W2510/104 , Y02T10/46 , Y10T477/67
摘要： A system and method for controlling the ignition timing of a spark ignition internal combustion engine in a driveline that includes a multiple speed ratio transmission, at least one of whose operating speed ratios depends on the engaged or disengaged state of a clutch, the rotating inertia of the engine, equivalent vehicle inertia, a spring associated with the stiffness of the axle, inherent structural damping, and a spark advance controller-filter, whose output advances and retards the spark timing of the engine in accordance with the magnitude of engine speed and transmission output speed according to a control algorithm, which improves speed ratio control during shifts and minimizes the underdamped oscillations that result after the clutch is fully engaged.
摘要翻译： 一种用于控制包括多速比变速器的传动系统中的火花点火内燃机的点火正时的系统和方法，其中至少一个工作速度比取决于离合器的接合或分离状态，转动惯量 发动机，等效车辆惯性，与车轴的刚度相关联的弹簧，固有的结构阻尼和火花提前控制器过滤器，其输出根据发动机转速和传动的大小推进并延迟发动机的火花正时 根据控制算法的输出速度，这提高了换档期间的速比控制，并使离合器完全接合后产生的欠阻尼振荡最小化。
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公开(公告)号：US07654377B2
公开(公告)日：2010-02-02
申请号：US11487019
申请日：2006-07-14
IPC分类号： F16D25/12
CPC分类号： F16D48/04 , F04B43/04 , F04B43/046 , F16D48/066 , F16D2048/0212 , F16D2500/1026 , F16D2500/1066 , F16D2500/3024 , F16D2500/70217 , F16D2500/70235 , F16D2500/7042 , F16D2500/7061 , F16D2500/7109
摘要： An actuator system includes a piezoelectric pump; an accumulator including a cylinder, a piston located in the cylinder, a port located at a first side of the piston and hydraulically connected to the pump outlet and a switching circuit, a relief port hydraulically connected to the reservoir and located at a second side of the piston, and a spring biasing the piston toward the port; and a hydraulically actuated servo including a front port hydraulically connected to the switching circuit, a back port hydraulically connected to the reservoir, and the servo causing the friction element alternately to engage and to disengage in response to a magnitude of hydraulic pressure in the servo.
摘要翻译： 致动器系统包括压电泵; 蓄液器，包括气缸，位于气缸中的活塞，位于活塞的第一侧并液压地连接到泵出口的端口和开关电路，液压地连接到储存器并位于第二侧 所述活塞和弹簧将所述活塞偏向所述端口; 以及液压致动的伺服系统，包括液压连接到开关电路的前端口，液压地连接到储液器的后端口，以及使伺服系统响应于伺服中的液压的大小而使摩擦元件交替地接合和脱离的伺服。
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公开(公告)号：US20080011577A1
公开(公告)日：2008-01-17
申请号：US11487019
申请日：2006-07-14
IPC分类号： F16D25/00
CPC分类号： F16D48/04 , F04B43/04 , F04B43/046 , F16D48/066 , F16D2048/0212 , F16D2500/1026 , F16D2500/1066 , F16D2500/3024 , F16D2500/70217 , F16D2500/70235 , F16D2500/7042 , F16D2500/7061 , F16D2500/7109
摘要： An actuator system includes a piezoelectric pump; an accumulator including a cylinder, a piston located in the cylinder, a port located at a first side of the piston and hydraulically connected to the pump outlet and a switching circuit, a relief port hydraulically connected to the reservoir and located at a second side of the piston, and a spring biasing the piston toward the port; and a hydraulically actuated servo including a front port hydraulically connected to the switching circuit, a back port hydraulically connected to the reservoir, and the servo causing the friction element alternately to engage and to disengage in response to a magnitude of hydraulic pressure in the servo.
摘要翻译： 致动器系统包括压电泵; 蓄液器，包括气缸，位于气缸中的活塞，位于活塞的第一侧并液压地连接到泵出口的端口和开关电路，液压地连接到储存器并位于第二侧 所述活塞和弹簧将所述活塞偏向所述端口; 以及液压致动的伺服系统，包括液压连接到开关电路的前端口，液压地连接到储液器的后端口，以及使伺服系统响应于伺服中的液压的大小而使摩擦元件交替地接合和脱离的伺服。
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公开(公告)号：US5056378A
公开(公告)日：1991-10-15
申请号：US413642
申请日：1989-09-28
CPC分类号： F02D13/0207 , B60W10/04 , B60W10/11 , B60W30/1819 , F01L9/02 , F02D13/0253 , F02D41/0002 , F02D41/023 , F02D2041/001 , F02D2200/101 , F16H63/50 , F16H63/502 , Y02T10/18 , Y02T10/42 , Y10T477/677
摘要： An engine valve control system for controlling engine valve lift during an automatic transmission shift. A plurality of engine valve actuation systems are each coupled to an individual engine valve for electronically controlling valve lift. Each valve actuation system includes a hydraulically operated piston coupled to each of the engine valves, and an electronically actuated supply valve responsive to a supply signal and coupled between the hydraulically operated piston and a source of hydraulic fluid, and an electronically actuated drain valve responsive to a drain signal and coupled between the piston and source of hydraulic fluid. A controller responsive to a shift command from a transmission controller, provides the supply and drain signals in appropriate timing and phase relationship to reduce valve lift during the automatic transmission shift. In another aspect of the invention, the controller also reduces the hydraulic coupling force applied to the clutch elements during an automatic transmission shift.
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