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公开(公告)号：US12006658B2
公开(公告)日：2024-06-11
申请号：US17301651
申请日：2021-04-09
Applicant: Caterpillar Inc.
Inventor： Chad Koci , Jay R. Steffen , Fang Guo , Richard W. Kruiswyk , Gaurav Vasudeva , Robert Michael McDavid , Timothy Adam Bazyn
IPC: E02F9/20
CPC classification number: E02F9/2075 , E02F9/2091 , E02F9/2095 , E02F9/202
Abstract: A power system may include a high-speed flywheel connected to an engine of a machine; a battery; a motor-generator unit (MGU) connected to the engine and the battery; and a turbocharger connected to the engine. One or more of the high-speed flywheel, the battery and the MGU, or the turbocharger may be configured to provide supplemental power to power provided by the engine to operate the machine, or provide replacement power when no power is provided by the engine to operate the machine.
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公开(公告)号：US11268596B2
公开(公告)日：2022-03-08
申请号：US16511622
申请日：2019-07-15
Applicant: Caterpillar Inc.
Inventor： John Seipold , Gaurav Vasudeva , Evan Jacobson , Eric Manning
Abstract: A variable drive system of a power system is disclosed. The variable drive system may include an engine gearset to transfer power from an engine output of an engine to a variable input driveshaft of the variable drive system. The variable drive system may include a generator gearset to transfer power, generated by the engine, to a generator driveshaft of a generator. The variable drive system may include a variable drive, coupled to the variable input driveshaft, to enable a gear ratio between engine output and the generator driveshaft to be adjustable, the variable input driveshaft being offset from at least one of the engine output or the generator driveshaft. The variable drive system may include a direct drive clutch to bypass variable power transfer through the variable drive and enable direct power transfer from the engine output to the generator driveshaft.
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公开(公告)号：US20200340577A1
公开(公告)日：2020-10-29
申请号：US16396219
申请日：2019-04-26
Applicant: Caterpillar Inc.
Inventor： Brian E. Lister , Gaurav Vasudeva , Konrad Garrett , Aaron B. Crabtree , Michael Beyer
Abstract: A transmission for a machine is disclosed. The transmission may comprise a torque path providing a path for transmission of torque from an input shaft to an output shaft, and a single clutch element along the torque path. The transmission may further comprise a clutch actuator configured to actuate engagement of the clutch element, and a clutch pressure control (CPC) valve configured to permit a flow of hydraulic fluid to the clutch actuator through a control pressure line when in an open position to cause the clutch actuator to actuate engagement of the clutch element. The transmission may further comprise a failure mode response (FMR) valve in the control pressure line between the CPC valve and the clutch actuator. The FMR valve may have a failure position obstructing flow of the hydraulic fluid from the CPC valve to the clutch actuator when the CPC valve is in the open position.
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公开(公告)号：US11174905B1
公开(公告)日：2021-11-16
申请号：US17101173
申请日：2020-11-23
Applicant: Caterpillar Inc.
Inventor： Konrad Garrett , Aaron Benjamin Crabtree , Michael David Beyer , Gaurav Vasudeva , Brian Eugene Lister
Abstract: A transmission for a machine is disclosed. The transmission may comprise a first torque path for transmission of torque from an input shaft to an output shaft, and a single clutch element along the first torque path. The transmission may further comprise a clutch actuator configured to actuate engagement of the clutch element, and a clutch pressure control (CPC) valve configured to permit a flow of hydraulic fluid to the clutch actuator when in an open position to cause the clutch actuator to actuate engagement of the clutch element. The transmission may further comprise a FMR valve having a failure position obstructing flow of the hydraulic fluid from the CPC valve to the clutch actuator when the CPC valve is in the open position. The FMR valve actuated by pilot pressure from a CPC valve that controls actuation of other clutch elements that are not on the first torque path.
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公开(公告)号：US20190009772A1
公开(公告)日：2019-01-10
申请号：US16130639
申请日：2018-09-13
Applicant: Caterpillar Inc.
Inventor： Gaurav Vasudeva , Konrad Garrett , Justin R. Bailey
IPC: B60W20/10 , F16H61/421 , F16H47/04 , B60K6/543 , B60W10/101 , B60W10/04
CPC classification number: B60W20/10 , B60K6/12 , B60K6/543 , B60W10/04 , B60W10/101 , B60W10/103 , B60W10/20 , B60W2300/17 , B60W2710/09 , B60W2710/105 , B60Y2400/72 , F16H47/04 , F16H61/421 , F16H61/44 , F16H2047/045 , Y02T10/6208 , Y02T10/6282 , Y10S903/918
Abstract: A continuously variable transmission includes two planetary gear sets having two planetary outputs and a planetary output shaft with a first drive gear. A variator drives a ring gear of the second planetary gear set, and a transmission input shaft is driven by the engine, which also drives the variator and the planetary input. Forward and reverse output systems are connected to the planetary output shaft and a transmission output shaft. A first clutch connects the first planetary output to the first drive gear, and a second clutch connects the second planetary output to the first drive gear. A third clutch connects the second planetary output to a second drive gear of the planetary output shaft, with the second drive gear being connected to the forward output system.
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Patent Agency Ranking
公开(公告)号：US09394975B1
公开(公告)日：2016-07-19
申请号：US14703507
申请日：2015-05-04
Applicant: Caterpillar Inc.
Inventor： Glen P. Calvert , Gaurav Vasudeva
IPC: F16H3/72
CPC classification number: B60K6/365 , B60K6/48 , B60K6/547 , B60K2006/4816 , F16H3/725 , F16H2200/0039 , F16H2200/0086 , F16H2200/2015 , F16H2200/2043 , Y02T10/6221 , Y02T10/6256
Abstract: A planetary gear train is disclosed. The planetary gear train may include a first planetary gear set, a second planetary gear set, a third planetary gear set, a fourth planetary gear set and a fifth planetary gear set between an input end and an output end. The planetary gear train may further include a brake set having a first brake, a second brake and a third brake, and a clutch set having a first clutch and a second clutch. The first brake, the second brake and the third brake, the first clutch and the second clutch may be selectively actuable to produce three different forward speed ranges and two different reverse speed ranges between the input end and the output end.
Abstract translation: 公开了一种行星齿轮系。 行星齿轮系可以包括在输入端和输出端之间的第一行星齿轮组，第二行星齿轮组，第三行星齿轮组，第四行星齿轮组和第五行星齿轮组。 行星齿轮系还可以包括具有第一制动器，第二制动器和第三制动器的制动器组件和具有第一离合器和第二离合器的离合器组件。 第一制动器，第二制动器和第三制动器，第一离合器和第二离合器可以选择性地致动以在输入端和输出端之间产生三个不同的前进速度范围和两个不同的倒档速度范围。
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公开(公告)号：US11421585B2
公开(公告)日：2022-08-23
申请号：US16505396
申请日：2019-07-08
Applicant: Caterpillar Inc.
Inventor： Brian Lister , Gaurav Vasudeva
Abstract: A variable drive system, to drive an accessory drive of a machine may include a first variable pulley to be mechanically coupled to the accessory drive and an engine output of an engine. The variable drive system may also include a second variable pulley to be mechanically coupled to a flywheel. The variable drive system may include a drive element to rotate, according to a clutch system, about the first variable pulley and the second variable pulley to at least one of: drive the second variable pulley to charge the flywheel with kinetic energy or drive the first variable pulley via kinetic energy from the flywheel.
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公开(公告)号：US20220145966A1
公开(公告)日：2022-05-12
申请号：US17585666
申请日：2022-01-27
Applicant: Caterpillar Inc.
Inventor： John SEIPOLD , Gaurav Vasudeva , Evan Jacobson , Eric Manning
Abstract: A variable drive system of a power system is disclosed. The variable drive system may include an engine gearset to transfer power from an engine output of an engine to a variable input driveshaft of the variable drive system. The variable drive system may include a generator gearset to transfer power, generated by the engine, to a generator driveshaft of a generator. The variable drive system may include a variable drive, coupled to the variable input driveshaft, to enable a gear ratio between engine output and the generator driveshaft to be adjustable, the variable input driveshaft being offset from at least one of the engine output or the generator driveshaft. The variable drive system may include a direct drive clutch to bypass variable power transfer through the variable drive and enable direct power transfer from the engine output to the generator driveshaft.
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公开(公告)号：US20210095748A1
公开(公告)日：2021-04-01
申请号：US16587618
申请日：2019-09-30
Applicant: Caterpillar Inc.
Inventor： Gaurav Vasudeva
Abstract: A transmission system for a machine is coupled to an engine of the machine that is adapted to generate power. The transmission system includes a hydraulic power path including a variator coupled to the engine. The transmission system also includes a mechanical power path. The mechanical power path includes a first gear arrangement including a plurality of gears. The mechanical power path also includes a second gear arrangement including a plurality of gears. The second gear arrangement is coupled with the first gear arrangement to receive the variable rotational power from the first gear arrangement. The mechanical power path further includes a first clutch assembly and a second clutch assembly. Further, the second gear arrangement directs the variable rotational power received from the first gear arrangement towards a final output member of the machine in a selected direction.
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公开(公告)号：US10801612B1
公开(公告)日：2020-10-13
申请号：US16396219
申请日：2019-04-26
Applicant: Caterpillar Inc.
Inventor： Brian E. Lister , Gaurav Vasudeva , Konrad Garrett , Aaron B. Crabtree , Michael Beyer
Abstract: A transmission for a machine is disclosed. The transmission may comprise a torque path providing a path for transmission of torque from an input shaft to an output shaft, and a single clutch element along the torque path. The transmission may further comprise a clutch actuator configured to actuate engagement of the clutch element, and a clutch pressure control (CPC) valve configured to permit a flow of hydraulic fluid to the clutch actuator through a control pressure line when in an open position to cause the clutch actuator to actuate engagement of the clutch element. The transmission may further comprise a failure mode response (FMR) valve in the control pressure line between the CPC valve and the clutch actuator. The FMR valve may have a failure position obstructing flow of the hydraulic fluid from the CPC valve to the clutch actuator when the CPC valve is in the open position.
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