公开(公告)号：US09126578B2

公开(公告)日：2015-09-08

申请号：US13750406

申请日：2013-01-25

Applicant: Caterpillar Inc.

Inventor： Steven Ott ,  Adam Nackers ,  Kevin Davis

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

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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20140214289A1

公开(公告)日：2014-07-31

申请号：US13750406

申请日：2013-01-25

Applicant: CATERPILLAR INC.

Inventor： Steven Ott ,  Adam Nackers ,  Kevin Davis

IPC: B60W10/06

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

Abstract: 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.

Abstract translation: 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。

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：US08849527B2

公开(公告)日：2014-09-30

申请号：US13666673

申请日：2012-11-01

Applicant: Caterpillar Inc.

Inventor： Kevin Davis ,  Adam Nackers ,  Steven Ott

IPC: B60W10/06 ,  B60W10/10

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：US08585543B1

公开(公告)日：2013-11-19

申请号：US13666250

申请日：2012-11-01

Applicant: Caterpillar Inc.

Inventor： Kevin Davis ,  Adam Nackers ,  Steven Ott

IPC: F16H61/662

CPC classification number: B60W10/06 ,  B60K31/00 ,  B60W10/103 ,  B60W2510/1005 ,  B60W2710/0644

Abstract: 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.

Abstract translation: 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。