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1. 发明授权

US3972189A Control for hydrostatic transmissions 失效
标题翻译：液压传动控制
公开(公告)号：US3972189A
公开(公告)日：1976-08-03
申请号：US632741
申请日：1975-11-17
申请人： Kenneth K. Knapp , Charles R. Cornell , Edwin D. Hicks
发明人： Kenneth K. Knapp , Charles R. Cornell , Edwin D. Hicks
IPC分类号： F16H61/42 , F16H61/433 , F16H39/46
CPC分类号： F16H61/4139 , F16H61/42 , F16H61/433
摘要： A control valve for a variable displacement pump or motor. The valve includes a pair of solenoids which are independently actuatable to port relatively high pressure fluid to their respective servo motor. A shuttle valve actuated by the high pressure fluid is used to simultaneously port the fluid from the other servo motor to a low pressure fluid source. A manual valving system is also provided having a pair of balls each biased into engagement with a seat to seal a passage to one of the servo motors. Movement of either ball off of its seat allows high pressure to flow to the respective servo motor. The high pressure fluid actuates the shuttle valve to port fluid from the other servo motor to the low pressure fluid source.
摘要翻译：用于可变排量泵或电动机的控制阀。该阀包括一对螺线管，其可独立地致动以将相对高压的流体输送到其相应的伺服电动机。由高压流体致动的梭阀用于将来自另一个伺服电动机的流体同时输送到低压流体源。还提供了一种手动阀系统，其具有一对球，每个球偏置成与座接合，以密封通往一个伺服电动机的通道。任何一个球从其座位移动允许高压流向相应的伺服电机。高压流体致动梭阀以将流体从另一伺服马达输送到低压流体源。

2. 发明授权

US4116002A Control for a variable displacement pump or motor 失效
标题翻译：变量泵或电机的控制
公开(公告)号：US4116002A
公开(公告)日：1978-09-26
申请号：US826278
申请日：1977-08-22
申请人： Kenneth K. Knapp , Charles R. Cornell
发明人： Kenneth K. Knapp , Charles R. Cornell
IPC分类号： F16H61/46 , F16H61/478 , F16H39/46
CPC分类号： F16H61/433 , F16H61/46 , F16H61/478 , F16H2059/6861
摘要： A control including a control valve and an override valve for use with a variable displacement pump or motor unit having a pair of strokers into and out of which fluid must be directed to vary the displacement of the unit. The control valve ports fluid from a high pressure source to a first control passage and from a second control passage to a low pressure source, reverses said flow, and terminates said flow. The override valve is interposed between the control passages and the strokes and defines a pair of override passages therein used to direct fluid from one control passage to one stroker and from the other stroker to the other control passage. The override valve is selectively movable between a first position directing such flow therethrough and a second position in which such flow is terminated between the control passages and the strokers. Upon flow termination, the override valve communicates, via a bore in the override valve, the strokers with one another to allow the pump unit to go to minimum displacement or the motor unit to go to maximum displacement. In the preferred embodiment, the override valve is responsive to the high pressure fluid being ported from or to respectively, the pump or motor unit. The control may also include a centering valve interposed between the control valve and the override valve. The centering valve is responsive to the pressure of the control fluid to define passages between the first and second control passages and the first and second override passages. Upon a loss of control fluid pressure, the centering valve moves to a second position to cross port the control valve passages and the override valve passages. The override valve may also be actuated via external signals such as an electrical, mechanical, or manual input.
摘要翻译：一种控制装置，包括用于可变排量泵或电动机单元的控制阀和超控阀，所述变量泵或电动机单元具有进入和流出流体的一对调节器以改变单元的位移。控制阀将流体从高压源输送到第一控制通道，从第二控制通道流向低压源，使所述流动反向并终止所述流动。超控阀介于控制通道和行程之间，并且在其中限定了一对超驰通道，用于将流体从一个控制通道引导到一个冲击器，另一个控制通道从另一控制通道引导。超控阀可以选择性地在引导这样的流动的第一位置和第二位置之间移动，在第二位置，这种流动在控制通道和调节器之间终止。在流动终止时，过载阀通过超控阀中的孔与彼此相通的调节器相通，以允许泵单元进入最小位移或电机单元进行最大位移。在优选实施例中，超控阀响应于高压流体从泵或马达单元分别从泵或马达单元移入。控制器还可以包括插入在控制阀和超控阀之间的定心阀。定心阀响应于控制流体的压力以在第一和第二控制通道与第一和第二超控通道之间限定通道。当失去控制流体压力时，定心阀移动到第二位置以交叉输入控制阀通道和超控阀通道。超控阀也可以通过诸如电气，机械或手动输入的外部信号来致动。

3. 发明授权

US4663714A Synchronized mid-mounted clutch for variable power train 失效
标题翻译：用于可变动力传动系统的同步中置式离合器
公开(公告)号：US4663714A
公开(公告)日：1987-05-05
申请号：US662220
申请日：1984-10-18
申请人： Charles R. Cornell , David J. Olson
发明人： Charles R. Cornell , David J. Olson
IPC分类号： B60W10/02 , B60W10/06 , B60W10/103 , B60W10/111 , B60W30/19 , F16H47/04 , F16H61/04 , F16H61/40 , F16H61/46 , F16H61/462 , B60K41/28 , G06F15/20
CPC分类号： B60W10/06 , B60W10/02 , B60W10/10 , B60W10/103 , B60W10/111 , B60W30/1819 , B60W30/19 , F16H61/462 , F16H47/02 , F16H47/04 , F16H61/0403 , F16H63/46 , Y02T10/76 , Y10T477/637
摘要： A microprocessor controlled drive train having an engine-connected variable ratio speed transmission and a load-connected range gear transmission connected by a mid-mounted clutch disposed therebetween has an automatic clutch control mode of operation, with the clutch disengaged and the range transmission in gear to complete a shift, wherein the speeds of the clutch sides are synchronized before engagement by appropriately varying the ratio of the speed transmission, thereby eliminating shift shock. This automatic clutch control mode is preferably employed in combination with operating modes which control both the speed transmission ratio and engine throttle to maintain fuel efficient operation.
摘要翻译：具有发动机连接的可变比速变速器的微处理器控制的传动系和通过设置在其间的中间离合器连接的负载连接范围齿轮传动装置具有自动离合器控制操作模式，离合器分离并且齿轮传动范围完成换档，其中通过适当地改变速度传动比，离合器侧的速度在接合之前同步，从而消除换档冲击。该自动离合器控制模式优选与控制速度传动比和发动机节气门两者以保持燃料效率运行的操作模式相结合。

4. 发明授权

US4663713A Automatic power control for variable power train 失效
标题翻译：可变动力传动系统的自动功率控制
公开(公告)号：US4663713A
公开(公告)日：1987-05-05
申请号：US620762
申请日：1984-06-14
申请人： Charles R. Cornell , David J. Olson
发明人： Charles R. Cornell , David J. Olson
IPC分类号： B60W10/06 , B60W10/103 , B60W30/188 , F02D41/00 , F02D41/02 , F02D41/26 , F16H47/04 , F16H61/40 , F16H61/46 , F16H61/475 , B60K41/20
CPC分类号： B60W10/06 , B60W10/04 , B60W10/103 , B60W30/188 , F16H61/475 , B60W30/1884 , B60Y2200/22 , F16H2059/743 , F16H47/04 , Y02T10/76
摘要： Microprocessor controlled automatic power control for adjusting the engine power setting in an engine-transmission power train in which the transmission drive reduction is variable in ratio, by step change or continuously so, such as for use in farm tractors. The microprocessor control monitors the position of this automatically moving lever and the desired transmission output speed to keep the setting adjusted so that engine power is set, within a deadband, to maintain a desired engine speed preferably resulting in minimum fuel consumption or in maintaining constant transmission output speed. Preferably, the microprocessor has a higher priority primary function of also automatically adjusting the transmission drive reduction ratio, for the same purpose but with higher sensitivity. The power control lever is specifically designed to automatically return the power setting to manual control as soon as the operator grabs the handle.
摘要翻译：微处理器控制的自动功率控制，用于调节发动机传动系中的发动机功率设定，其中变速器减速比例可变，或者连续地变化，例如用于农用拖拉机。微处理器控制器监视该自动移动杆的位置和期望的变速器输出速度，以保持调整设定，使得发动机功率在死区内设定，以保持期望的发动机转速，优选地导致最小的燃料消耗或保持恒定的传动输出速度。优选地，微处理器具有较高优先级的主要功能，也可以以相同的目的自动调整传动驱动减速比，但具有较高的灵敏度。电源控制杆专门设计用于在操作者抓住手柄时自动将功率设置恢复为手动控制。

5. 发明授权

US4158290A Electro-hydraulic controller 失效
标题翻译：电液控制器
公开(公告)号：US4158290A
公开(公告)日：1979-06-19
申请号：US909138
申请日：1978-05-24
申请人： Charles R. Cornell
发明人： Charles R. Cornell
IPC分类号： F04B49/06 , F16H61/42 , F16H61/46 , F16H61/475 , F16H39/46
CPC分类号： F16H61/475 , F04B49/06 , F16H61/46 , F04B2201/1204 , F04B2205/08 , F16H61/433 , Y10S60/911
摘要： An electro-hydraulic control for a hydrostatic transmission including a variable displacement hydraulic pump, a fixed displacement hydraulic motor, and fluid operable strokers to vary the displacement of the pump. The electro-hydraulic control is in series between the charge pump and the standard manual controller and determines the pressure of the charge fluid ported to the standard controller. The electro-hydraulic control includes a spool biased toward a first position to port fluid from the charge pump to the standard controller, and biased toward a second position to relieve to tank the pressure of fluid ported to the manual controller. The biasing toward the second direction is accomplished, in part, by pressure in a fluid chamber exerting a biasing force on the spool, the fluid chamber being in communication with drain through a variable orifice which is variable in response to a pressure command signal. This signal is generated by control logic including a horsepower command signal generator which is variable to correspond to a maximum desired input horsepower, and circuitry providing a horsepower approximation signal representing the product of motor output speed and the instantaneous pressure command signal. The circuitry compares the horsepower command and horsepower approximation signals and generates a new pressure command signal tending to minimize the difference between the horsepower command and approximation signals. As a result, the commanded maximum system pressure varies, such that the product of maximum system pressure and motor output speed (proportional to pump flow) is constant, for a given input horsepower setting.
摘要翻译：一种用于静液压变速器的电动液压控制装置，其包括可变排量液压泵，固定排量液压马达和流体可操作的冲程器，以改变泵的排量。电液控制串联在电荷泵和标准手动控制器之间，并确定输入到标准控制器的充电流体的压力。电液压控制包括一个向第一位置偏置的阀芯，用于将流体从电荷泵输送到标准控制器，并且朝向第二位置偏压，以缓解输送到手动控制器的流体的压力。朝向第二方向的偏压部分地通过在阀芯上施加偏置力的流体室中的压力来实现，流体室通过可变孔口而连通，可变孔口响应于压力指令信号而变化。该信号由包括可以对应于最大期望输入功率的马力指令信号发生器的控制逻辑产生，以及提供表示马达输出速度和瞬时压力指令信号的乘积的马力近似信号的电路。该电路比较马力指令和马力近似信号，并产生新的压力指令信号，以期将马力指令和近似信号之间的差异最小化。因此，指定的最大系统压力变化，使得对于给定的输入功率设置，最大系统压力和电动机输出速度（与泵流量成比例）的乘积是恒定的。

6. 发明授权

US5320186A Draft control system with closed loop drop/raise rate control 失效
标题翻译：牵引控制系统具有闭环下降/提升速率控制
公开(公告)号：US5320186A
公开(公告)日：1994-06-14
申请号：US757173
申请日：1991-09-10
申请人： Richard P. Strosser , Charles R. Cornell , James W. Macqueene
发明人： Richard P. Strosser , Charles R. Cornell , James W. Macqueene
IPC分类号： A01B63/112 , A01B63/114 , B60D1/42 , E02F9/20 , A01B63/10
CPC分类号： A01B63/112 , A01B63/114 , B60D1/42 , E02F9/2029
摘要： In an automatic draft control system for positioning a hitch, velocity feedback loop techniques are employed to control the rate of movement of the hitch. When the system is operating in an open loop position control mode, a switch mounted on a tractor fender enables an operator to manually control raising/lowering of the hitch for the purpose of attaching an implement. Hitch position is sensed and a microprocessor calculates the first derivative of the hitch position signal to determine actual hitch velocity. The actual velocity is subtracted from a desired velocity value to obtain a velocity error signal. The error signal is subjected to an integral control algorithm and the integrated value is used to energize raise or lower solenoids controlling a valve which raises or lowers the hitch. When the actual hitch velocity is equal to or greater than the desired hitch velocity, the integrated value is saved. When the next raise/lower sequence is initiated the integrator is reset to the saved value. This eliminates delays in starting hitch motion. The desired velocity value may be derived from the setting of a drop rate potentiometer in which case a drop rate value is added to the integrated error signal with the result being used to modify a hitch movement command that energizes the "lower" solenoid, thereby limiting the hitch drop rate when the system is operating in a closed loop position/draft control mode.
摘要翻译：在用于定位搭接的自动牵伸控制系统中，采用速度反馈回路技术来控制搭接的移动速度。当系统工作在开环位置控制模式时，安装在拖拉机挡泥板上的开关使得操作者能够手动地控制挂钩的升高/降低以便附接工具。感测到挂钩位置，微处理器计算挂钩位置信号的一阶导数以确定实际牵引速度。从所需速度值中减去实际速度，以获得速度误差信号。误差信号经受积分控制算法，并且积分值用于激励控制升高或降低牵引力的阀的升高或下降螺线管。当实际牵引速度等于或大于所需牵引速度时，积分值被保存。当启动下一个升/降序列时，积分器将重置为保存的值。这消除了启动牵引运动的延迟。期望的速度值可以从下降速率电位计的设定中导出，在这种情况下，将下降速率值加到积分误差信号上，结果用于修改对“下”螺线管通电的牵引运动指令，从而限制系统在闭环位置/牵引控制模式下运行时的牵引降速率。

7. 发明授权

US4648040A Engine monitor/control microprocessor for continuously variable power train 失效
标题翻译：用于无级变速动力传动系的发动机监控/控制微处理器
公开(公告)号：US4648040A
公开(公告)日：1987-03-03
申请号：US582192
申请日：1984-02-21
申请人： Charles R. Cornell , David J. Olson
发明人： Charles R. Cornell , David J. Olson
IPC分类号： B60W10/06 , B60W10/103 , B60W10/11 , B60W30/188 , F16H47/04 , B60K41/08
CPC分类号： B60W10/06 , B60W10/04 , B60W10/103 , B60W10/11 , B60W30/188 , B60Y2200/22 , F16H2059/743 , F16H47/04 , Y02T10/76 , Y10T477/637
摘要： Engine monitor/control microprocessor primarily effective to automatically adjust the engine power setting in a transmission power train in which the transmission drive reduction is variable in ratio, by step change or continuously so, such as for use in farm tractors. The microprocessor adjusts the position of the setting so that engine power set at all levels is produced at the right brake specific fuel consumption for substantially minimum pounds of fuel per horsepower hour, or within a band width thereof if not all that sensitive. Preferably, the microprocessor has a higher priority primary function of also automatically adjusting the transmission drive reduction ratio, for the same purpose but with high sensitivity.
摘要翻译：发动机监控/控制微处理器主要有效地自动调节传动传动系中的发动机功率设定，其中传动传动装置的减速比例可变，或者连续地变化，例如在农用拖拉机中使用。微处理器调节设置的位置，使得在所有级别设定的发动机功率以正确的制动器特定燃料消耗产生，用于每马力时间基本上最小的燃料燃料，或者如果不是全部敏感的话，在其带宽内。优选地，微处理器具有较高优先级的主要功能，也可以以相同的目的自动调节传动驱动减速比，但具有高灵敏度。

8. 发明授权

US4180979A Anti-stall control for electrical hydrostatic transmission control system 失效
标题翻译：电动液压传动控制系统的防失控制
公开(公告)号：US4180979A
公开(公告)日：1980-01-01
申请号：US918117
申请日：1978-06-22
申请人： Charles R. Cornell
发明人： Charles R. Cornell
IPC分类号： F02D29/04 , F16H61/42 , F16H61/435 , F16H61/46 , F16H61/465 , F16H39/46
CPC分类号： F02D29/04 , F16H61/435 , F16H61/46 , F16H61/465 , Y10S60/911
摘要： A control system for a hydrostatic transmission is disclosed of the type including an engine driven fluid pump and a fluid motor. The control system includes a main control operable in response to an electrical command signal to vary the displacement of the pump, and a command signal generator for generating the command signal. The anti-stall control includes means for comparing electrical signals representative of engine speed and a reference speed, and generating an electrical anti-stall signal representative of the maximum percentage of commanded pump displacement which is permissible without causing the engine to drop below the reference speed. The anti-stall control includes means for electrically multiplying the anti-stall signal and the command signal, downstream of the shaping and rate limiting circuits. The invention provides a simple, inexpensive anti-stall control which can be adjusted to have the maximum possible gain (responsiveness) without inducing circuit instability.
摘要翻译：公开了一种用于静液传动的控制系统，其包括发动机驱动的流体泵和流体马达。控制系统包括可响应于电命令信号而改变泵的位移的主控制器，以及用于产生命令信号的命令信号发生器。防失速控制包括用于比较表示发动机速度和参考速度的电信号的装置，并且产生代表所允许的指令泵排量的最大百分比的电防失信号，而不会使发动机降低到参考速度以下。防失速控制包括在整形和速率限制电路的下游将防失速信号和指令信号电相乘的装置。本发明提供了一种简单，便宜的防失速控制，其可以被调节以具有最大可能的增益（响应性）而不引起电路不稳定性。

9. 发明授权

US4091617A Hydraulic controller 失效
标题翻译：液压控制器
公开(公告)号：US4091617A
公开(公告)日：1978-05-30
申请号：US795689
申请日：1977-05-11
申请人： Charles R. Cornell
发明人： Charles R. Cornell
IPC分类号： F04B49/06 , F16H61/42 , F16H61/46 , F16H61/475 , F16H39/46
CPC分类号： F16H61/475 , F04B49/06 , F16H61/46 , F04B2201/1204 , F04B2205/08 , F16H61/433 , Y10S60/911
摘要： An electro-hydraulic control for a hydrostatic transmission including a variable displacement hydraulic pump and fluid operable servos to vary the displacement of the pump. The electro-hydraulic control is in series between the charge pump and the standard manual controller and determines the maximum pressure of the charge fluid ported to the standard controller. The electro-hydraulic control includes a spool biased toward a first position to port fluid from the charge pump to the standard controller, and biased toward a second position to relieve to tank the pressure of fluid ported to the manual controller. The biasing toward the second direction is accomplished, in part, by pressure in a fluid chamber exerting a biasing force on the spool, the fluid chamber being in communication with drain through a variable orifice which is variable in response to a pressure command signal. This signal is generated by control logic including a torque command signal generator which is variable to correspond to a maximum desired input torque setting and circuitry providing a torque approximation signal representing the product of pump displacement and the instantaneous pressure command signal. The circuitry compares the torque command and torque approximation signals and generates a new pressure command signal tending to minimize the difference between the torque command and approximation signals. As a result, the commanded maximum system pressure varies such that the product of maximum system pressure and pump displacement (equal to input torque) is constant, for a given input torque setting.
摘要翻译：一种用于静液压变速器的电动液压控制装置，其包括可变排量液压泵和流体可操作的伺服机构，以改变泵的排量。电液控制串联在电荷泵和标准手动控制器之间，并确定输入到标准控制器的充电流体的最大压力。电液压控制包括一个向第一位置偏置的阀芯，用于将流体从电荷泵输送到标准控制器，并且朝向第二位置偏压，以缓解输送到手动控制器的流体的压力。朝向第二方向的偏压部分地通过在阀芯上施加偏置力的流体室中的压力来实现，流体室通过可变孔口而连通，可变孔口响应于压力指令信号而变化。该信号由包括扭矩指令信号发生器的控制逻辑产生，转矩指令信号发生器可以变化以对应于最大期望输入转矩设置，以及提供表示泵位移和瞬时压力指令信号的乘积的转矩近似信号的电路。该电路比较转矩指令和转矩近似信号，并产生一个新的压力指令信号，以使转矩指令和近似信号之间的差异最小化。因此，对于给定的输入转矩设置，指令的最大系统压力变化，使得最大系统压力和泵排量（等于输入转矩）的乘积是恒定的。

10. 发明授权

US5365436A Electronic management system for heavy-duty trucks 失效
标题翻译：重型卡车电子管理系统
公开(公告)号：US5365436A
公开(公告)日：1994-11-15
申请号：US4344
申请日：1993-01-14
申请人： David A. Schaller , Richard S. Kroll , Zbigniew F. Kosobucki , Eric T. Swenson , Charles R. Cornell , Gregory L. Pence
发明人： David A. Schaller , Richard S. Kroll , Zbigniew F. Kosobucki , Eric T. Swenson , Charles R. Cornell , Gregory L. Pence
IPC分类号： B60R16/02 , B60R16/03 , F16H59/44 , G07C5/08 , G06F13/00 , B60Q1/00
CPC分类号： G07C5/085 , B60R16/0315 , F16H59/44
摘要： An electronic data link that services components of the vehicle including components other than the engine and an electronic engine management system that services the engine operate in different data formats and are interfaced by a special electronic module that provides translation services for accomplishing bi-directional through-transmission of data between them. The module has programmable memory with different levels of security and can detect the absence of a vehicle speed sensor at incipient vehicle launch. The speed sensor serves both the data link and the electronic engine management system through the special module.
摘要翻译：为包括发动机以外的部件的车辆的部件提供的电子数据链路和服务于引擎的电子引擎管理系统以不同的数据格式进行操作，并且由提供翻译服务的特殊电子模块连接，以实现双向通过，他们之间传输数据。该模块具有不同安全级别的可编程存储器，可以在初始车辆启动时检测到车速传感器的缺失。速度传感器通过专用模块为数据链路和电子引擎管理系统提供服务。

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