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公开(公告)号：US20240125381A1
公开(公告)日：2024-04-18
申请号：US17966056
申请日：2022-10-14
Applicant: Caterpillar Inc.
Inventor： Brian E. Lister , Michael D. Beyer , Alex M. Fullenkamp
CPC classification number: F16H57/0439 , E02F9/202 , E02F9/2095
Abstract: A mobile machine can include a traction powertrain configured to operate on electrical power and which includes a traction motor coupled to a transmission. To lubricate the transmission, the mobile machine can include a lubrication system having a lubricant pump coupled with a pump motor. The traction motor and the pump motor are electrically arranged in parallel with each other. A powertrain sensor monitors rotational motion in the traction powertrain and an electronic controller can generate a lubricant supply command directing the lubricant pump to deliver a first lubricant quantity to the transmission.
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公开(公告)号：US20240125092A1
公开(公告)日：2024-04-18
申请号：US17965939
申请日：2022-10-14
Applicant: Caterpillar Inc.
Inventor： Brian E. Lister , Michael D. Beyer
CPC classification number: E02F9/207 , B60L15/20 , B60L53/20 , E02F9/2079 , F16H61/14
Abstract: An electric powertrain includes an electric power source, an electric motor and a multi-speed transmission. The powertrain has an electronic controller. The controller determines a respective rimpull torque limit for the operating gear of the multi-speed transmission and determines whether the rimpull torque demand exceeds the rimpull torque limit. Upon determining that the rimpull torque demand exceeds the rimpull torque limit, the controller acts to either (i) shift the multi-speed transmission to a gear in which the respective rimpull torque limit is at or above the rimpull torque demand or (ii) reduce the electric motor torque command to a level for which the rimpull torque is below the respective rimpull torque limit for the operating gear of the multi-speed transmission.
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3.发明申请公开(公告)号：US20140121918A1
公开(公告)日：2014-05-01
申请号：US13666619
申请日：2012-11-01
Applicant: CATERPILLAR INC.
Inventor： Kevin Davis , Adam Nackers , Michael D. Beyer , Shane C. McBride
IPC: F16H61/66
CPC classification number: 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
Abstract: 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.
Abstract translation: 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。
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公开(公告)号：US11835130B1
公开(公告)日：2023-12-05
申请号：US17964694
申请日：2022-10-12
Applicant: Caterpillar Inc.
Inventor： Michael D. Beyer , Brian E. Lister , Ryan R. Leman
IPC: F16H61/12 , B60W50/029
CPC classification number: F16H61/12 , B60W50/029 , F16H2061/122 , F16H2061/1284
Abstract: An electric drive system for a machine includes a transmission, and an electric drive motor coupled to a transmission input. The electric drive system also includes a plurality of sensing subsystems, each monitoring a speed of rotation and a direction of rotation of one of the electric drive motor or the transmission input. An electric drive control system in the electric drive system includes an electronic controller structured to receive health data of the sensing subsystems, and determine a drive system control command, according to a sensor data sourcing pattern that is dependent upon the health data. Related methodology and control logic is also disclosed.
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Patent Agency Ranking
5.发明授权公开(公告)号：US08874332B2
公开(公告)日：2014-10-28
申请号：US13666619
申请日：2012-11-01
Applicant: Caterpillar Inc.
Inventor： Kevin Davis , Adam Nackers , Michael D. Beyer , Shane C. McBride
CPC classification number: 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
Abstract: 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.
Abstract translation: 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。
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公开(公告)号：US12258729B2
公开(公告)日：2025-03-25
申请号：US18046615
申请日：2022-10-14
Applicant: Caterpillar Inc.
Inventor： Michael J. Barngrover , Brian E. Lister , Michael D. Beyer
IPC: E02F9/20
Abstract: A system and method for controlling a motor of an electric drivetrain having a multi-speed transmission with at least a first clutch and a second clutch. The system and method includes initiating a transmission shift requiring engagement of the first clutch, applying synchronizing torque commands to the motor based on an engagement parameter of the first clutch until the shift is complete, and applying non-shifting torque commands to the motor after the shift is complete.
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公开(公告)号：US12157989B2
公开(公告)日：2024-12-03
申请号：US17965939
申请日：2022-10-14
Applicant: Caterpillar Inc.
Inventor： Brian E. Lister , Michael D. Beyer
Abstract: An electric powertrain includes an electric power source, an electric motor and a multi-speed transmission. The powertrain has an electronic controller. The controller determines a respective rimpull torque limit for the operating gear of the multi-speed transmission and determines whether the rimpull torque demand exceeds the rimpull torque limit. Upon determining that the rimpull torque demand exceeds the rimpull torque limit, the controller acts to either (i) shift the multi-speed transmission to a gear in which the respective rimpull torque limit is at or above the rimpull torque demand or (ii) reduce the electric motor torque command to a level for which the rimpull torque is below the respective rimpull torque limit for the operating gear of the multi-speed transmission.
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公开(公告)号：US20240123967A1
公开(公告)日：2024-04-18
申请号：US17964690
申请日：2022-10-12
Applicant: Caterpillar Inc.
Inventor： Aditya B. Bhandari , Brian E. Lister , Michael D. Beyer
IPC: B60W10/10
CPC classification number: B60W10/10 , B60W2710/0644 , B60W2710/1005
Abstract: Operating an electric drive machine includes neutralizing a transmission in the electric drive machine operating in a first range, determining suitability of the electric drive machine for operating the transmission in a second range, and calculating a target transmission input speed, based on a speed parameter indicative of a transmission output speed, and the determined suitability for operating in a second range. A speed of an electric drive motor is varied based on the target transmission input speed, and a second clutch engaged to operate the transmission in the second range based on the varied speed of the electric drive motor. Related apparatus and control logic is also disclosed.
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公开(公告)号：US09556807B2
公开(公告)日：2017-01-31
申请号：US14729716
申请日：2015-06-03
Applicant: Caterpillar Inc.
Inventor： Brian D. Hoff , Mark E. Rettig , Michael D. Beyer , Steven D. Spencer
CPC classification number: F02D29/02 , F02D41/0215 , F02D41/022 , F02D41/023 , F02D2200/023 , F02D2250/26 , F16H3/006 , F16H47/04 , F16H63/50 , F16H2037/088 , F16H2063/508 , Y10T477/675
Abstract: A transmission system is disclosed for use with an engine. The transmission system may have a plurality of gear sets, an input member configured to be powered by the engine and to drive the plurality of gear sets, an output member driven by the plurality of gear sets, and at least one clutch configured to selectively engage select gears of the plurality of gear sets. The transmission system may also have a controller in communication with the engine. The controller may be configured to generate an estimated temperature of the at least one clutch. The controller may further be configured to selectively derate the engine based on the estimated temperature.
Abstract translation: 公开了一种用于发动机的传动系统。 变速器系统可以具有多个齿轮组，输入构件被构造成由发动机驱动并驱动多个齿轮组，由多个齿轮组驱动的输出构件，以及至少一个离合器，其构造成选择性地接合 选择多个齿轮组的齿轮。 传动系统还可以具有与发动机连通的控制器。 控制器可以被配置为产生至少一个离合器的估计温度。 控制器还可以被配置成基于估计的温度选择性地降低发动机。
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