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公开(公告)号：US5485894A
公开(公告)日：1996-01-23
申请号：US387139
申请日：1995-02-10
申请人： Will Watson , Alan L. Miller , Drew A. Sundquist , Roger T. Simpson , Diane K. Ducklow , Joseph W. Beckerman , Dan J. Showalter
发明人： Will Watson , Alan L. Miller , Drew A. Sundquist , Roger T. Simpson , Diane K. Ducklow , Joseph W. Beckerman , Dan J. Showalter
IPC分类号： B60K17/342 , B60K17/344 , B60K17/346 , B60K17/35 , B60K23/08 , B60K28/16 , F16D27/115 , F16D48/12 , F16H37/00 , F16H63/18 , F16H63/30 , B60K17/348
CPC分类号： F16D27/115 , B60K17/342 , B60K17/344 , B60K17/35 , B60K17/3505 , B60K23/0808 , B60K28/165 , B60K17/3467 , B60K17/3515 , B60K23/08 , B60W2510/0241 , B60W2520/28 , F16D27/004 , F16H63/18 , F16H63/304
摘要： An on demand vehicle drive system monitors vehicle performance and operating conditions and controls torque delivery to the vehicle wheels. The system includes a plurality of speed and position sensors, a transfer case having primary and secondary output shafts driving primary and secondary axles and a microcontroller. The sensors include a vehicle speed sensor, a pair of primary and secondary drive shaft speed sensors, and brake and driveline status sensors. The transfer case includes a modulating electromagnetic clutch controlled by the microcontroller which is incrementally engaged to transfer torque from the primary output shaft to the secondary output shaft. When the speed of either the front or the rear drive shafts overruns, i.e., exceeds, the speed of the other drive shaft by a predetermined value related to the vehicle speed, indicating that wheel slip is present, clutch current is incrementally increased to increase clutch engagement and torque transfer to the secondary axle. When wheel slip is reduced below the predetermined value the current to the clutch is incrementally reduced. The method of operating such a system is also described.
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公开(公告)号：US5407024A
公开(公告)日：1995-04-18
申请号：US903696
申请日：1992-06-24
申请人： Will Watson , Alan L. Miller , Drew A. Sundquist , Roger T. Simpson , Diane K. Ducklow , Joseph W. Beckerman , Dan J. Showalter
发明人： Will Watson , Alan L. Miller , Drew A. Sundquist , Roger T. Simpson , Diane K. Ducklow , Joseph W. Beckerman , Dan J. Showalter
IPC分类号： B60K17/342 , B60K17/344 , B60K17/346 , B60K17/35 , B60K23/08 , B60K28/16 , F16D27/115 , F16D48/12 , F16H37/00 , F16H63/18 , F16H63/30 , B60K17/34
CPC分类号： F16D27/115 , B60K17/342 , B60K17/344 , B60K17/35 , B60K17/3505 , B60K23/0808 , B60K28/165 , B60K17/3467 , B60K17/3515 , B60K23/08 , B60W2510/0241 , B60W2520/28 , F16D27/004 , F16H63/18 , F16H63/304
摘要： An on demand vehicle drive system monitors vehicle performance and operating conditions and controls torque delivery to the vehicle wheels. The system includes a plurality of speed and position sensors, a transfer case having primary and secondary output shafts driving primary and secondary axles and a microcontroller. The sensors include a vehicle speed sensor, a pair of primary and secondary drive shaft speed sensors, and brake and driveline status sensors. The transfer case includes a modulating electromagnetic clutch controlled by the microcontroller which is incrementally engaged to transfer torque from the primary output shaft to the secondary output shaft. When the speed of either the front or the rear drive shafts overruns, i.e., exceeds, the speed of the other drive shaft by a predetermined value related to the vehicle speed, indicating that wheel slip is present, clutch current is incrementally increased to increase clutch engagement and torque transfer to the secondary axle. When wheel slip is reduced below the predetermined value the current to the clutch is incrementally reduced. The method of operating such a system is also described.
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3.发明授权
公开(公告)号：US5269726A
公开(公告)日：1993-12-14
申请号：US917867
申请日：1992-07-21
CPC分类号： F16H55/56 , F16H61/66272 , F16H63/065
摘要： A system and several strategies for controlling a continuously variable transmission with an improved secondary servo arrangement in order to efficiently provide sufficient clamping forces under high torque conditions. The valving means allowing for the relative movement of the second variable pulley's movable sheave includes a valving arrangement operative to regulate the secondary apply pressure at or below the hydraulic source pressure and distinct from the primary line pressure. Control signals are developed to prevent belt slip and to efficiently launch a vehicle, maintain the necessary primary to secondary clamping force ratio in overdrive conditions, and avoid overpressurization of the secondary servo for many vehicle operating conditions.
摘要翻译： 一种用于控制具有改进的次级伺服装置的无级变速器的系统和几种策略，以便在高扭矩条件下有效提供足够的夹紧力。 允许第二可变滑轮的可动滑轮的相对运动的阀门装置包括阀装置，该阀装置可操作以调节液压源压力等于或低于初级管路压力的二次施加压力。 开发控制信号以防止皮带打滑并有效地发射车辆，在过驱动条件下保持必要的初级到次级夹紧力比，并且避免在许多车辆操作条件下二次伺服的过压。
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公开(公告)号：US4875561A
公开(公告)日：1989-10-24
申请号：US107143
申请日：1987-10-09
IPC分类号： F16D25/0635 , F16D48/02 , F16D48/06
CPC分类号： F16D25/0635 , F16D48/066 , F16D48/08 , F16D2500/50224 , F16D2500/50236 , F16D2500/70406 , F16D2500/7061 , F16D2500/7109
摘要： An adaptive clutch torque capacity control for an automotive vehicle clutch utilizing a dual area apply piston for engagement of the clutch plate for accurate control over a larger than normal torque range. The use of two piston areas allows one area to be controlled in a "coarse" fashion, while the other piston area, which is generally a small area, provides a "vernier" or fine adjustment control. The small area piston is controlled by an electronic closed loop for fine adjustment of any errors occurring in the "coarse" control.
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公开(公告)号：US4648496A
公开(公告)日：1987-03-10
申请号：US722578
申请日：1985-04-12
申请人： Werner P. Petzold , Alan L. Miller
发明人： Werner P. Petzold , Alan L. Miller
IPC分类号： B60W10/02 , B60W10/04 , B60W10/06 , B60W30/18 , B60W50/02 , F16D48/02 , F16D48/06 , F16H59/06 , F16H61/00 , F16H61/66 , F16H61/662 , F16H63/46 , H02H3/30 , B60K41/02
CPC分类号： F16H61/66 , B60W10/02 , B60W10/04 , B60W10/06 , B60W10/101 , B60W10/107 , B60W30/18 , B60W30/1819 , F16D48/06 , F16H61/66259 , B60W2050/021 , B60W2540/10 , B60W2540/16 , B60W2710/025 , B60W2710/0644 , F16D2500/1026 , Y10T477/6203 , Y10T477/6425
摘要： A clutch control system for a continuously variable transmission includes a mode determination system which samples input signals including position of the neutral-drive selector, driver demand, engine speed, vehicle speed, and clutch input speed. From these signals the operating mode is determined and the clutch control system operating mode is set. In starting the vehicle, a minor pressure feedback loop and a major engine speed feedback loop are used. When the clutch is locked up, these control loops are not employed in regulating the vehicle operation.
摘要翻译： 用于无级变速器的离合器控制系统包括对包括中立驱动选择器的位置，驾驶员需求，发动机转速，车速和离合器输入速度的输入信号进行取样的模式确定系统。 从这些信号中确定操作模式并设置离合器控制系统操作模式。 在起动车辆时，使用次要的反馈回路和主要的发动机转速反馈回路。 当离合器被锁定时，这些控制回路不用于调节车辆操作。
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公开(公告)号：US08996263B2
公开(公告)日：2015-03-31
申请号：US12271611
申请日：2008-11-14
CPC分类号： F16H61/70 , F16H3/663 , F16H15/28 , F16H37/086 , F16H61/12 , F16H61/6648 , F16H61/6649 , F16H2037/088 , F16H2037/0886 , F16H2061/1208 , F16H2061/6601 , F16H2200/0039 , F16H2200/2005 , F16H2200/2023 , F16H2200/2041 , Y10T477/45 , Y10T477/60 , Y10T477/606 , Y10T477/613 , Y10T477/619 , Y10T477/623 , Y10T477/6242 , Y10T477/62429 , Y10T477/6352 , Y10T477/636 , Y10T477/637
摘要： An electronic controller for a variable ratio transmission and an electronically controllable variable ratio transmission including a variator or other CVT are described herein. The electronic controller can be configured to receive input signals indicative of parameters associated with an engine coupled to the transmission. The electronic controller can also receive one or more control inputs. The electronic controller can determine an active range and an active variator mode based on the input signals and control inputs. The electronic controller can control a final drive ratio of the variable ratio transmission by controlling one or more electronic solenoids that control the ratios of one or more portions of the variable ratio transmission.
摘要翻译： 这里描述了一种用于变速比变速器的电子控制器和包括变速器或其它CVT的电子可控变速比变速器。 电子控制器可以被配置为接收指示与耦合到变速器的发动机相关联的参数的输入信号。 电子控制器还可以接收一个或多个控制输入。 电子控制器可以基于输入信号和控制输入来确定有效范围和有源变换器模式。 电子控制器可以通过控制一个或多个控制可变比变速器的一个或多个部分的比率的电子螺线管来控制可变比率传动的最终传动比。
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公开(公告)号：US4988967A
公开(公告)日：1991-01-29
申请号：US262152
申请日：1988-10-14
申请人： Alan L. Miller , George H. Studtmann , Todd L. King , Kenneth R. Gallaher , Jerome J. Zawada , William P. Umlauf
发明人： Alan L. Miller , George H. Studtmann , Todd L. King , Kenneth R. Gallaher , Jerome J. Zawada , William P. Umlauf
CPC分类号： F16F9/46 , B60G2202/24 , B60G2500/106
摘要： A solenoid operated hydraulic control valve which has a specially ported spool valve to statically balance spool force in the opened and closed positions, and a specially designed solenoid operator which includes very small ratios of gaps to cross-sectional areas for the working and non-working gaps between the armature and stator.
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公开(公告)号：US4793454A
公开(公告)日：1988-12-27
申请号：US025391
申请日：1987-03-13
IPC分类号： B60W10/02 , B60W10/04 , B60W10/107 , B60W30/19 , F16D48/02 , F16D48/06 , F16H59/18 , F16H61/02 , F16H61/66 , F16H61/662 , F16H63/46 , B60K41/02 , B60K41/28
CPC分类号： B60W30/19 , B60W10/02 , B60W10/04 , B60W10/06 , B60W10/101 , B60W10/107 , B60W30/1819 , F16H61/66254 , B60W2510/0241 , B60W2710/0644 , B60W2710/0666 , F16H2059/183 , F16H59/18 , Y10T477/6203 , Y10T477/623 , Y10T477/624
摘要： A clutch control system provides and regulates pressure at a clutch for transmitting torque from an engine to a drive train through a continuously variable transmission. A positive torque value is determined for each throttle setting and provided as a pressure input signal. Engine speed is monitored through a closed loop feedback system to provide an error signal to the desired pressure setting. A pressure control loop monitors pressure at the clutch through a closed loop feedback system to maintain the pressure at the clutch at a desired level. Filtering is provided in the torque and engine speed loops to provide for a more realistic response to driver demand. Incorporation of belt ratio factor in the engine speed control loop further provides for consistent and accurate response to driver demand variations at differing transmission drive levels. Overall line pressure within the associated hydraulic system further controls a proportional gain in the pressure control loop to provide appropriate response. Phase compensation and integral dynamic phase factors in the pressure control loop further guarantee a zero level steady state error signal and the generation of accurate control over the pressure control valve.
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公开(公告)号：US4350058A
公开(公告)日：1982-09-21
申请号：US205217
申请日：1980-11-10
申请人： Alan L. Miller , John S. Ivey
发明人： Alan L. Miller , John S. Ivey
CPC分类号： F16H61/0437 , B60W2510/105 , F16H2059/148 , F16H2061/0078 , F16H59/16 , F16H61/0213 , Y10T477/69383 , Y10T477/69387
摘要： The disclosed control system regulates changes of gear ratio in an automatic transmission for a vehicle. A supervisory control arrangement monitors operator input commands through the shift range selector lever, and receives a desired-ratio command either from a shift point computer or from a manual gear shift selector. When the supervisory control arrangement determines that the desired-ratio signal differs from the actual ratio, the monitoring function is interrupted and a shift-initiate command is provided. This command is utilized to assign certain components for use in a shift quality control arrangement, for effecting the controlled ratio change. A torque output signal from the vehicle drive line is used in conjunction with the shift quality control arrangement. After the shift is completed, the previously assigned components are released and the supervisory control arrangement resumes the monitoring of the desired ratio as contrasted to the actual gear ratio. One circuit controls all the upshifts, whether 1-2, 2-3, or 3-4, and one other circuit controls all the downshifts. This assignment of certain components for each controlled ratio change, and their release so they can be re-used in subsequent ratio changes, contributes to a cost-effective trade-off between the number of circuits required in the total system and the complexity of the logic circuits actually employed.
摘要翻译： 所公开的控制系统调节用于车辆的自动变速器中的变速比的变化。 监视控制装置通过变速范围选择杆监视操作者输入指令，并从变速点计算机或手动换档选择器接收期望比率指令。 当监视控制装置确定期望比率信号与实际比率不同时，监视功能被中断，并提供移位启动命令。 该命令用于分配用于换档质量控制装置中的某些部件，以实现受控比率的变化。 来自车辆驱动线的扭矩输出信号与换档质量控制装置一起使用。 在移位完成之后，先前分配的部件被释放，并且与实际齿轮比相反，监控控制装置重新开始所需比率的监视。 一个电路控制所有升档，无论是1-2,2-3或3-4，另一个电路控制所有降档。 对于每个受控比例的某些组件的这种分配改变，并且它们的释放使得它们可以在随后的比率变化中重新使用，有助于在整个系统中所需的电路数量与复杂度之间的成本有效的权衡 实际采用的逻辑电路。
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公开(公告)号：US4259882A
公开(公告)日：1981-04-07
申请号：US866431
申请日：1978-01-03
申请人： Alan L. Miller
发明人： Alan L. Miller
CPC分类号： F16H61/0021 , Y10T74/19274
摘要： A control system for a power shifted transmission with a hydraulic actuated friction clutch incorporating hydraulic valves controlled by an electronic system responsive to a torque signal from an input or output shaft in the transmission, and including a torque level controlled by a computer stage in the electronic control.
摘要翻译： 一种用于动力传动的控制系统，其具有液压致动摩擦离合器，其包括由电子系统控制的液压阀，其响应于来自变速器中的输入或输出轴的转矩信号，并且包括由电子计算机级控制的转矩水平 控制。
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