公开(公告)号：US08849527B2

公开(公告)日：2014-09-30

申请号：US13666673

申请日：2012-11-01

申请人： Caterpillar Inc.

发明人： Kevin Davis ,  Adam Nackers ,  Steven Ott

IPC分类号： B60W10/06 ,  B60W10/10

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

摘要： 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.

摘要翻译： 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：US20140121918A1

公开(公告)日：2014-05-01

申请号：US13666619

申请日：2012-11-01

申请人： CATERPILLAR INC.

发明人： Kevin Davis ,  Adam Nackers ,  Michael D. Beyer ,  Shane C. McBride

IPC分类号： F16H61/66

CPC分类号： F16H61/66 ,  B60K6/54 ,  B60K6/543 ,  B60W10/103 ,  B60W10/11 ,  B60W10/111 ,  B60W30/1882 ,  B60Y2200/411 ,  F16H47/04 ,  Y10S903/909 ,  Y10S903/91 ,  Y10S903/911 ,  Y10S903/915 ,  Y10S903/917 ,  Y10S903/945

摘要： A system and method involves a machine having a power train including a continuously variable transmission (CVT) associated with a plurality of virtual gear ratios. To shift between the plurality of virtual gear ratios, the machine may include an operator input device that may be movable between a plurality of distinct positions. A first position may be associated with a neutral position in which no shifting of virtual gear ratios occurs. A second position of the operator input device may be associated with a first incremental rate for shifting between the virtual gear ratios. A third position may be associated with a second incremental rate for shifting between the virtual gear ratios which is different than the first incremental rate.

摘要翻译： 一种系统和方法涉及具有包括与多个虚拟齿轮比相关联的无级变速器（CVT）的动力传动系的机器。 为了在多个虚拟齿轮比之间切换，机器可以包括可以在多个不同位置之间移动的操作者输入装置。 第一位置可以与其中不发生虚拟齿轮比的偏移的空档位置相关联。 操作者输入装置的第二位置可以与用于在虚拟齿轮比之间移动的第一增量率相关联。 第三位置可以与用于在不同于第一增量率的虚拟齿轮比之间换档的第二增量率相关联。

公开(公告)号：US08585543B1

公开(公告)日：2013-11-19

申请号：US13666250

申请日：2012-11-01

申请人： Caterpillar Inc.

发明人： Kevin Davis ,  Adam Nackers ,  Steven Ott

IPC分类号： F16H61/662

CPC分类号： B60W10/06 ,  B60K31/00 ,  B60W10/103 ,  B60W2510/1005 ,  B60W2710/0644

摘要： A system and method of controlling the speed of a machine having a continuously variable transmission (CVT) operatively coupled to a power source. A plurality of selectable virtual gear ratios can be associated with the CVT. The machine may include an operator input device that may generate a operator input signal indicative of a desired adjustment in the ground speed. The operator input signal may be converted to a CVT speed command and to a power source speed command that are communicated to the CVT and the power source, respectively. The CVT adjusts the machine speed in accordance with the CVT speed command, while the power source adjusts its speed in accordance with the power source speed command, so that operation of the power source is substantially independent of operator of the CVT.

摘要翻译： 控制具有可操作地耦合到电源的无级变速器（CVT）的机器的速度的系统和方法。 多个可选择的虚拟齿轮比可以与CVT相关联。 机器可以包括操作者输入装置，其可以产生指示地面速度的期望调整的操作者输入信号。 操作者输入信号可以被转换为CVT速度命令和分别传送到CVT和电源的电源速度命令。 CVT根据CVT速度指令调整机器速度，电源根据电源速度指令调整速度，使电源的运行与CVT的操作者基本无关。

公开(公告)号：US09169926B2

公开(公告)日：2015-10-27

申请号：US13666642

申请日：2012-11-01

申请人： Caterpillar Inc.

发明人： Adam Nackers ,  Kevin Davis

IPC分类号： B60W10/101 ,  F16H61/462 ,  F16H47/04

CPC分类号： F16H61/462 ,  F16H47/04

摘要： 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.

摘要翻译： 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：US08874332B2

公开(公告)日：2014-10-28

申请号：US13666619

申请日：2012-11-01

申请人： Caterpillar Inc.

发明人： Kevin Davis ,  Adam Nackers ,  Michael D. Beyer ,  Shane C. McBride

IPC分类号： B60K6/54 ,  B60K6/543 ,  B60W10/11 ,  B60W10/111 ,  F16H61/66 ,  B60K6/36 ,  B60K6/547

CPC分类号： F16H61/66 ,  B60K6/54 ,  B60K6/543 ,  B60W10/103 ,  B60W10/11 ,  B60W10/111 ,  B60W30/1882 ,  B60Y2200/411 ,  F16H47/04 ,  Y10S903/909 ,  Y10S903/91 ,  Y10S903/911 ,  Y10S903/915 ,  Y10S903/917 ,  Y10S903/945

摘要： A system and method involves a machine having a power train including a continuously variable transmission (CVT) associated with a plurality of virtual gear ratios. To shift between the plurality of virtual gear ratios, the machine may include an operator input device that may be movable between a plurality of distinct positions. A first position may be associated with a neutral position in which no shifting of virtual gear ratios occurs. A second position of the operator input device may be associated with a first incremental rate for shifting between the virtual gear ratios. A third position may be associated with a second incremental rate for shifting between the virtual gear ratios which is different than the first incremental rate.

摘要翻译： 一种系统和方法涉及具有包括与多个虚拟齿轮比相关联的无级变速器（CVT）的动力传动系的机器。 为了在多个虚拟齿轮比之间切换，机器可以包括可以在多个不同位置之间移动的操作者输入装置。 第一位置可以与其中不发生虚拟齿轮比的偏移的空档位置相关联。 操作者输入装置的第二位置可以与用于在虚拟齿轮比之间移动的第一增量率相关联。 第三位置可以与用于在不同于第一增量率的虚拟齿轮比之间换档的第二增量率相关联。

公开(公告)号：US08795133B2

公开(公告)日：2014-08-05

申请号：US13666577

申请日：2012-11-01

申请人： Caterpillar Inc.

发明人： Adam Nackers ,  Kevin Davis

IPC分类号： F16H61/40

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

摘要： 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.

摘要翻译： 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

申请人： CATERPILLAR INC.

发明人： Adam Nackers ,  Kevin Davis

IPC分类号： B60W10/101

CPC分类号： F16H61/462 ,  F16H47/04

摘要： 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.

摘要翻译： 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

申请人： Caterpillar Inc.

发明人： Kevin Davis ,  Adam Nackers

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

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

摘要： 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.

摘要翻译： 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：US20180319381A1

公开(公告)日：2018-11-08

申请号：US15587578

申请日：2017-05-05

申请人： Caterpillar Inc.

发明人： Andy Vitale ,  Joshua Struble ,  Ananth Kini ,  Kevin Davis

IPC分类号： B60T8/1761 ,  B60T7/12 ,  B60T8/172 ,  B60T8/1755 ,  B60T8/72

CPC分类号： B60T8/1761 ,  B60T7/12 ,  B60T8/172 ,  B60T8/1755 ,  B60T8/72

摘要： An anti-lock braking system for an autonomous vehicle includes a memory storing instructions relating to braking control, a detection system for detecting an event necessitating braking of the autonomous vehicle, and a controller. The controller is in communication with the detection system and is configured to execute the instructions to receive detection and identification of the event, determine a vehicle deceleration rate based on the identification of the event, and operate the anti-lock braking system in a selected mode of a plurality of different predetermined operating modes based on the vehicle deceleration rate.

公开(公告)号：US09126578B2

公开(公告)日：2015-09-08

申请号：US13750406

申请日：2013-01-25

申请人： Caterpillar Inc.

发明人： Steven Ott ,  Adam Nackers ,  Kevin Davis

IPC分类号： B60W10/10 ,  B60W10/06 ,  F16H59/78

CPC分类号： B60W10/10 ,  B60W10/06 ,  B60W30/1843 ,  B60W2300/17 ,  B60W2510/0638 ,  B60W2510/0676 ,  B60W2510/1035 ,  B60W2510/105 ,  B60W2510/106 ,  F16H59/78 ,  Y10T477/619 ,  Y10T477/653

摘要： A machine includes an engine and an engine cooling system, which is associated with and configured to remove heat from the engine. A transmission is connected to the engine and configured to transmit engine power from the engine to a driven load. The transmission controls an amount of engine power transmitted to the driven load in response to a transmission command signal. A controller associated with the engine and the transmission provides the transmission control signal. The controller is disposed to determine an engine operating condition, determine a transmission operating condition, and adjust the transmission command signal to reduce the amount of engine power transmitted to the driven load when the engine operating condition indicates that the engine cooling system removes insufficient heat from the engine.

摘要翻译： 机器包括发动机和发动机冷却系统，该发动机和发动机冷却系统与发动机相关联并被构造成从发动机中去除热量 变速器连接到发动机并被配置成将发动机功率从发动机传递到被驱动的负载。 变速器响应于发送指令信号控制发送到被驱动负载的发动机功率的量。 与发动机和变速器相关联的控制器提供变速器控制信号。 控制器设置成确定发动机运行状况，确定变速器运行状态，并且当发动机运行状态指示发动机冷却系统从炉中释放不足的热量时，调整变速器命令信号以减少传递到从动负载的发动机功率的量 引擎。