公开(公告)号：US08795133B2

公开(公告)日：2014-08-05

申请号：US13666577

申请日：2012-11-01

Applicant: Caterpillar Inc.

Inventor： Adam Nackers ,  Kevin Davis

IPC: F16H61/40

CPC classification number: B60W30/18136 ,  B60W10/103 ,  B60W30/18072 ,  B60W2710/0677 ,  B60W2710/1022 ,  B60W2720/10 ,  B60Y2200/411 ,  F16H47/04 ,  Y10T477/623 ,  Y10T477/636

Abstract: A method controls the power-transmission in a machine having a continuously variable transmission (CVT) and a power source operatively coupled together in a powertrain. The method regulates operation of the CVT with a retarding power limit in order to limit the amount of retarding power transferable from the powertrain to the power source. The retarding power may be utilized to decelerate or decrease the speed of the machine. The method may register an operator input signal indicative of a deceleration event from a plurality of possible deceleration events. The deceleration event is compared to a lookup table to determine if the retarding power limit should be adjusted. The method may adjust the retarding power limit in accordance with the comparison.

Abstract translation: 一种方法控制具有无级变速器（CVT）和在动力系中可操作地耦合在一起的动力源的机器中的动力传递。 该方法调节具有延迟功率极限的CVT的操作，以便限制从动力系传递到电源的延迟动力的量。 延迟功率可用于减速或降低机器的速度。 该方法可以从多个可能的减速事件登记表示减速事件的操作者输入信号。 减速事件与查找表进行比较，以确定是否应调整延迟功率极限。 该方法可以根据比较来调节延迟功率极限。

公开(公告)号：US20140121919A1

公开(公告)日：2014-05-01

申请号：US13666642

申请日：2012-11-01

Applicant: CATERPILLAR INC.

Inventor： Adam Nackers ,  Kevin Davis

IPC: B60W10/101

CPC classification number: F16H61/462 ,  F16H47/04

Abstract: A system and method involves a machine that powertrain including a continuously variable transmission (CVT) and a machine speed sensor to determine a measured machine speed. The machine also includes a controller in communication with the CVT and the speed sensor. The controller may include a table relating the measured machine speed to a plurality of virtual gear ratios associated with the CVT. The controller is configured to determine a calculated virtual gear ratio using the table and, if desired, may display the calculated virtual gear ratio on a visual display.

Abstract translation: 一种系统和方法涉及包括无级变速器（CVT）和机器速度传感器的动力传动系统的机器，以确定测量的机器速度。 该机器还包括与CVT和速度传感器通信的控制器。 控制器可以包括将测量的机器速度与与CVT相关联的多个虚拟齿轮比关联的表格。 控制器被配置为使用该表确定计算的虚拟齿轮比，并且如果需要，可以在可视显示器上显示计算的虚拟齿轮比。

公开(公告)号：US08545368B1

公开(公告)日：2013-10-01

申请号：US13666210

申请日：2012-11-01

Applicant: Caterpillar Inc.

Inventor： Kevin Davis ,  Adam Nackers

IPC: B60W10/06 ,  B60W10/10 ,  B60W10/18

CPC classification number: B60W30/1882 ,  B60W10/103 ,  B60W10/184 ,  B60W30/18109 ,  B60W2300/17 ,  B60W2710/105 ,  F16H61/4157

Abstract: A method regulates a machine having a continuously variable transmission (CVT) and service brakes in a manner to reduce power transmission through the applied brakes. The method utilizes an unaltered torque-to-speed curve that relates the torque output to the speed output of the CVT. An under-run curve may be applied to the torque-to-speed curve and that corresponds to a target speed. The method may receive an operator input signal indicative of a braking event. In response, the method may shift the torque-to-speed curve to limit the output torque available. The method may also adjust the under-run curve in a manner that maintains correspondence with the target speed.

Abstract translation: 一种方法调节具有无级变速器（CVT）和行车制动器的机器，以减少通过所施加的制动器的动力传递。 该方法利用将转矩输出与CVT的速度输出相关联的未改变的转矩 - 转速曲线。 运转曲线可以应用于转矩到速度曲线，并且对应于目标速度。 该方法可以接收指示制动事件的操作者输入信号。 作为响应，该方法可以将转矩 - 速度曲线移动以限制可用的输出转矩。 该方法还可以以保持与目标速度的对应关系的方式调整欠运行曲线。

公开(公告)号：US09568030B2

公开(公告)日：2017-02-14

申请号：US14223386

申请日：2014-03-24

Applicant: Caterpillar Inc.

Inventor： Corey L. Gorman ,  Adam Nackers

IPC: F15B19/00 ,  E02F9/20 ,  E02F9/22 ,  E02F3/32 ,  E02F9/26

CPC classification number: F15B19/005 ,  E02F3/32 ,  E02F9/2066 ,  E02F9/2292 ,  E02F9/265 ,  F15B19/007 ,  F15B2211/50518 ,  F15B2211/6309 ,  F15B2211/633 ,  F15B2211/634 ,  F15B2211/6346 ,  F15B2211/6651 ,  F15B2211/6652 ,  F15B2211/6655 ,  F15B2211/6658 ,  F15B2211/857 ,  F15B2211/8643 ,  F15B2211/88

Abstract: A power system for a machine is provided. The power system includes an operator interface for entering an operator command relating to one or more functions of the machine. The power system includes a hydraulic pump and an engine configured to provide power to the hydraulic device. A controller is in communication with the operator interface, the hydraulic device and the engine. The controller is configured to consider operator skill level information relating to a skill level of the operator of the machine and to determine at least one desired power system operating parameter based on the operator command and the operator skill level information and to adjust at least one of the hydraulic pump and the engine based on the desired power system operating parameter.

Abstract translation: 提供了一种用于机器的电力系统。 电力系统包括用于输入与机器的一个或多个功能相关的操作者命令的操作者界面。 电力系统包括液压泵和被配置为向液压装置提供动力的发动机。 控制器与操作界面，液压装置和发动机通信。 控制器被配置为考虑与机器的操作者的技能水平相关的操作者技能水平信息，并且基于操作员命令和操作者技能水平信息来确定至少一个期望的电力系统操作参数，并且调整至少一个 液压泵和发动机基于所需的动力系统运行参数。

公开(公告)号：US20150267719A1

公开(公告)日：2015-09-24

申请号：US14223386

申请日：2014-03-24

Applicant: Caterpillar Inc.

Inventor： Corey L. Gorman ,  Adam Nackers

IPC: F15B9/17 ,  F15B19/00 ,  F15B21/02 ,  F15B13/16

CPC classification number: F15B19/005 ,  E02F3/32 ,  E02F9/2066 ,  E02F9/2292 ,  E02F9/265 ,  F15B19/007 ,  F15B2211/50518 ,  F15B2211/6309 ,  F15B2211/633 ,  F15B2211/634 ,  F15B2211/6346 ,  F15B2211/6651 ,  F15B2211/6652 ,  F15B2211/6655 ,  F15B2211/6658 ,  F15B2211/857 ,  F15B2211/8643 ,  F15B2211/88

Abstract: A power system for a machine is provided. The power system includes an operator interface for entering an operator command relating to one or more functions of the machine. The power system includes a hydraulic pump and an engine configured to provide power to the hydraulic device. A controller is in communication with the operator interface, the hydraulic device and the engine. The controller is configured to consider operator skill level information relating to a skill level of the operator of the machine and to determine at least one desired power system operating parameter based on the operator command and the operator skill level information and to adjust at least one of the hydraulic pump and the engine based on the desired power system operating parameter.

Abstract translation: 提供了一种用于机器的电力系统。 电力系统包括用于输入与机器的一个或多个功能相关的操作者命令的操作者界面。 电力系统包括液压泵和被配置为向液压装置提供动力的发动机。 控制器与操作界面，液压装置和发动机通信。 控制器被配置为考虑与机器的操作者的技能水平相关的操作者技能水平信息，并且基于操作员命令和操作者技能水平信息来确定至少一个期望的电力系统操作参数，并且调整至少一个 液压泵和发动机基于所需的动力系统运行参数。

公开(公告)号：US20150267697A1

公开(公告)日：2015-09-24

申请号：US14223698

申请日：2014-03-24

Applicant: Caterpillar Inc.

Inventor： Corey L. Gorman ,  Adam Nackers ,  Jeremiah C. Johnson ,  John J. Krone

IPC: F04B49/06 ,  F04B49/22 ,  E02F9/22 ,  F04B49/08

CPC classification number: F04B49/065 ,  E02F9/2228 ,  E02F9/2235 ,  E02F9/2292 ,  E02F9/2296 ,  F03C1/0678 ,  F04B1/26 ,  F04B23/06 ,  F04B49/08 ,  F04B49/22 ,  F04B2205/06 ,  F04B2205/09

Abstract: Method of controlling multiple variable displacement hydraulic pumps determined relative to operator commands. If non-second-pump-dominated command, a respective adjusted displacement request is determined based upon the lesser of the operator requested torque limited displacement and an adjusted torque limited displacement that calculated based upon and the torque limited displacement of the respective pump and a scaling factor calculated based upon the first relief valve set pressure and respective pump pressure. If second-pump-dominated command, the set pressure of a relief valve associated with one of the pumps is instead utilized in calculating the scaling factor in the above strategy.

Abstract translation: 控制多个可变排量液压泵相对于操作者指令确定的方法。 如果以非二次泵为主的命令，则基于操作者所要求的扭矩限制位移和基于相应泵的扭矩限制位移计算的调整的转矩限制位移和缩放比例 基于第一安全阀设定压力和相应的泵压力计算的系数。 如果以二泵为主的指令，则在上述策略中计算缩放因子时，代替使用与其中一个泵相关的溢流阀的设定压力。

公开(公告)号：US09002595B2

公开(公告)日：2015-04-07

申请号：US13666527

申请日：2012-11-01

Applicant: Caterpillar Inc.

Inventor： Kevin Davis ,  Adam Nackers ,  Michael Barngrover ,  Brian D. Kuras

IPC: F16H61/66 ,  F16H61/472 ,  B60W10/101 ,  B60W10/103 ,  B60W30/188 ,  F16H47/04

CPC classification number: B60W30/1882 ,  B60W10/103 ,  B60W2710/1038 ,  B60W2710/105 ,  B60Y2200/411 ,  F16H47/04 ,  Y10T477/60 ,  Y10T477/619

Abstract: A method regulates the torque output and/or speed output of a continuously variable transmission (CVT) in a manner that may simulate a clutch. The CVT may be incorporated in a machine and maybe operatively coupled to a power source and to a propulsion device. The method utilizes an unaltered torque-to-speed curve that relates the torque output to the speed output of the CVT. The method may receive an operator input signal indicating a desire to change operation of the machine. The torque-to-speed curve may be shifted in response to the operator input signal to limit the torque output available. In an aspect, an under-run curve may be applied to the torque-to-speed curve, the under-run curve corresponding to a target speed. The operator input signal may also shift the under-run curve to reduce the target speed.

Abstract translation: 一种方法以可模拟离合器的方式调节无级变速器（CVT）的扭矩输出和/或速度输出。 CVT可以结合在机器中并且可以可操作地耦合到电源和推进装置。 该方法利用将转矩输出与CVT的速度输出相关联的未改变的转矩 - 转速曲线。 该方法可以接收指示改变机器操作的期望的操作者输入信号。 扭矩到速度曲线可以响应于操作者输入信号而偏移以限制可用的扭矩输出。 在一个方面，运行中的曲线可以应用于转矩 - 速度曲线，对应于目标速度的欠运行曲线。 操作员输入信号也可以移动欠运行曲线以降低目标速度。

公开(公告)号：US20140121917A1

公开(公告)日：2014-05-01

申请号：US13666673

申请日：2012-11-01

Applicant: CATERPILLAR INC.

Inventor： Kevin Davis ,  Adam Nackers ,  Steven Ott

IPC: B60W10/101

CPC classification number: B60W30/19 ,  B60W10/06 ,  B60W10/103 ,  B60W2540/16 ,  B60W2540/165 ,  B60W2710/0644 ,  B60W2710/1005 ,  B60Y2200/411 ,  F16H47/04 ,  F16H61/462

Abstract: A machine may include a continuously variable transmission (CVT) operatively coupled to a power source. A virtual gear ratio may be selected from a plurality of virtual gear ratios associated with the CVT. A power source speed may be locked between a minimum power source limit and a maximum power source limit that are associated with the selected virtual gear ratio. If the virtual gear ratio is changed, a controller including one or more control maps may compare the power source speed as locked to the minimum power source limit and the maximum power source limit as they relate to the newly selected virtual gear ratio. If power source speed is outside the minimum or maximum power source limits, the method may limit the power source speed. In some embodiments, the minimum and/or maximum power source limits may vary with respect to the plurality of virtual gear ratios.

Abstract translation: 机器可以包括可操作地耦合到电源的无级变速器（CVT）。 可以从与CVT相关联的多个虚拟齿轮比中选择虚拟齿轮比。 可以将电源速度锁定在与所选虚拟齿轮比相关联的最小电源限制和最大电源极限之间。 如果虚拟齿轮比改变，则包括一个或多个控制图的控制器可以将与锁定的电源速度比较为与新选择的虚拟齿轮比相关的最小电源极限和最大电源极限。 如果电源速度超出最小或最大电源限制，则该方法可能会限制电源速度。 在一些实施例中，最小和/或最大功率源极限可以相对于多个虚拟齿轮比而变化。

公开(公告)号：US20140121911A1

公开(公告)日：2014-05-01

申请号：US13666527

申请日：2012-11-01

Applicant: CATERPILLAR INC.

Inventor： Kevin Davis ,  Adam Nackers

IPC: F16H61/66

CPC classification number: B60W30/1882 ,  B60W10/103 ,  B60W2710/1038 ,  B60W2710/105 ,  B60Y2200/411 ,  F16H47/04 ,  Y10T477/60 ,  Y10T477/619

Abstract: A method regulates the torque output and/or speed output of a continuously variable transmission (CVT) in a manner that may simulate a clutch. The CVT may be incorporated in a machine and maybe operatively coupled to a power source and to a propulsion device. The method utilizes an unaltered torque-to-speed curve that relates the torque output to the speed output of the CVT. The method may receive an operator input signal indicating a desire to change operation of the machine. The torque-to-speed curve may be shifted in response to the operator input signal to limit the torque output available. In an aspect, an under-run curve may be applied to the torque-to-speed curve, the under-run curve corresponding to a target speed. The operator input signal may also shift the under-run curve to reduce the target speed.

Abstract translation: 一种方法以可模拟离合器的方式调节无级变速器（CVT）的扭矩输出和/或速度输出。 CVT可以结合在机器中并且可以可操作地耦合到电源和推进装置。 该方法利用将转矩输出与CVT的速度输出相关联的未改变的转矩 - 转速曲线。 该方法可以接收指示改变机器操作的期望的操作者输入信号。 扭矩到速度曲线可以响应于操作者输入信号而偏移以限制可用的扭矩输出。 在一个方面，运行中的曲线可以应用于转矩 - 速度曲线，对应于目标速度的欠运行曲线。 操作员输入信号也可以移动欠运行曲线以降低目标速度。