-
公开(公告)号：US20230048820A1
公开(公告)日：2023-02-16
申请号：US17401613
申请日：2021-08-13
Applicant: GM Global Technology Operations LLC
Inventor： Jian Yao , Chengwu Duan , Yusheng Zou
Abstract: An axial flux electric motor for an automobile includes a stator assembly, and a rotor assembly, the rotor assembly including a plurality of lamination blocks arranged in an annular pattern, a plurality of conductive wedges, one conductive wedge being positioned between each adjacent pair of lamination blocks, the plurality of lamination blocks and the plurality of conductive wedges defining a rotor core disk having an inner diameter and outer diameter and opposing axial faces, and a plurality of permanent magnets attached to one of the opposing axial faces of the rotor core disk.
-
公开(公告)号：US11305675B2
公开(公告)日：2022-04-19
申请号：US16509110
申请日：2019-07-11
Applicant: GM Global Technology Operations LLC
Inventor： Chengwu Duan , Jian Yao , David Sun
IPC: B60N2/50 , B60R16/023 , H04L12/40
Abstract: A disturbance cancellation and generation seat system includes a seat mounted to a structure of a vehicle. The seat is accelerated due to a disturbance acceleration received in the structure and transferred to the seat. A seat control unit generates a force cancellation command signal. An actuation device is connected to the structure and is in communication with the seat control unit. The actuation device in response to receipt of the force cancellation command signal induces a cancellation acceleration motion into the seat which is equal but opposite to and therefore cancels an acceleration motion of the seat induced by the disturbance acceleration.
-
103.发明申请公开(公告)号：US20210129686A1
公开(公告)日：2021-05-06
申请号：US16675730
申请日：2019-11-06
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Lei Hao , Chandra S. Namuduri , Suresh Gopalakrishnan , Chengwu Duan , Norman K. Bucknor
Abstract: An electric propulsion system includes a battery pack and a DC-DC converter. The converter has a bypass switch and semiconductor switches. A traction power inverter module (“TPIM”) rectifies a DC bus voltage on the voltage bus to produce an AC bus voltage. An electric machine is connected to the TPIM and energized via the AC bus voltage. A controller calculates required output power from the converter based on a requested operating mode, and speed and torque of the electric machine. When the output power exceeds a threshold, the bypass switch closes to bypass the converter. When the output power is less than the threshold, the controller uses a minimum loss voltage from a loss map as a target control voltage of the converter to optimize efficiency of the electric propulsion system.
-
公开(公告)号：US20200274410A1
公开(公告)日：2020-08-27
申请号：US16426797
申请日：2019-05-30
Applicant: GM Global Technology Operations LLC
Inventor： Jian Yao , Yusheng Zou , Chengwu Duan , Zhen Gao , Lei Hao , Alireza Fatemi
Abstract: A fluid-cooled axial flux motor having a stator, a rotor disposed adjacent to the stator, and a rotor shaft rotationally fixed onto the rotor. The rotor shaft includes axial coolant passageway having an inlet and opposite outlet. The rotor includes coolant passageways extending radially from rotor shaft. The rotor coolant passageways include an inlet in fluid communication with the outlet of the axial coolant passageway and an outlet. The fluid-cooled axial flux motor further includes a coolant distribution header having an inlet in fluid communication with the outlet of the rotor coolant passageway, a coolant collection header having an inlet in fluid communication with the outlet of the coolant distribution header, and a collection header outlet. The outlet of the coolant distribution header is disposed above the stator and the inlet of the coolant collection header is disposed below the stator with respect to the direction of gravity.
-
公开(公告)号：US10576837B2
公开(公告)日：2020-03-03
申请号：US16032180
申请日：2018-07-11
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Dongxu Li , Chengwu Duan , Chunhao J. Lee , Lei Hao , Norman K. Bucknor , Michael A. Potter , Farzad Samie
Abstract: An electric drive unit is provided having an electric motor-generator coupled with a torque converter. Vehicles and machines employing the same, as well as methods of using the same, are also disclosed. The motor-generator may be configured to selectively drive a rotatable shaft with a motor output torque and generate electrical power from rotation of the rotatable shaft. The electric drive unit may further include a torque converter having an input and an output separated by a fluid coupling. The fluid coupling may be configured to selectively multiply torque received at the input such that a drive unit output torque at the output is selectively increased in at least a predetermined rotational speed range of the electric motor-generator.
-
Patent Agency Ranking
公开(公告)号：US20200016986A1
公开(公告)日：2020-01-16
申请号：US16032180
申请日：2018-07-11
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Dongxu Li , Chengwu Duan , Chunhao J. Lee , Lei Hao , Norman K. Bucknor , Michael A. Potter , Farzad Samie
Abstract: An electric drive unit is provided having an electric motor-generator coupled with a torque converter. Vehicles and machines employing the same, as well as methods of using the same, are also disclosed. The motor-generator may be configured to selectively drive a rotatable shaft with a motor output torque and generate electrical power from rotation of the rotatable shaft. The electric drive unit may further include a torque converter having an input and an output separated by a fluid coupling. The fluid coupling may be configured to selectively multiply torque received at the input such that a drive unit output torque at the output is selectively increased in at least a predetermined rotational speed range of the electric motor-generator.
-
公开(公告)号：US10458490B2
公开(公告)日：2019-10-29
申请号：US15665350
申请日：2017-07-31
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Zhen Gao , Chengwu Duan , Jian Yao , Chunhao J. Lee
Abstract: Systems and methods are provided for locking a cycle. A clutch system of the cycle includes a forward lock system configured to alternatively prevent or allow operation of the cycle in a forward direction. A shaft extends through the clutch system. An actuator is configured to move the forward lock system along the shaft between a lock position and a free position. A controller is configured to shift the actuator, via a signal from a processor, between the lock position and the free position. The cycle is configured to be locked against forward operation by the clutch system.
-
公开(公告)号：US20190227555A1
公开(公告)日：2019-07-25
申请号：US15876660
申请日：2018-01-22
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： David Sun , Peggy Wang , Jian Yao , Chengwu Duan , Jiang L. Du
Abstract: Methods and systems for assisting operation of a road vehicle with an aerial drone are provided. In an exemplary embodiment, a method for assisting operation of a road vehicle with an aerial drone includes flying the aerial drone on a route ahead of the road vehicle and sensing an object at a location on the route ahead of the road vehicle with the aerial drone. Further, the method includes communicating data associated with the object and/or the location to the road vehicle. Also, the method includes utilizing the data to operate the road vehicle.
-
公开(公告)号：US20190145479A1
公开(公告)日：2019-05-16
申请号：US15810770
申请日：2017-11-13
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Jianfeng Wang , Chengwu Duan
IPC: F16F1/32
Abstract: Systems and methods are provided with elastic elements that have configurable characteristics of force and displacement for a variety of applications. An elastic element is configured to deflect from a base shape when a load is applied and to resume the base shape when the load is removed. The elastic element formed of a metallic glass material. The elastic element applies a force to a moveable element.
-
公开(公告)号：US10267391B2
公开(公告)日：2019-04-23
申请号：US15183948
申请日：2016-06-16
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Jian Yao , Chengwu Duan , Chunhao J. Lee , Derek F. Lahr
IPC: F16H9/18 , F16H61/662 , F16H9/26
Abstract: A continuously variable transmission (CVT comprises a shaft rotatable about an axis, and variator assembly, and an actuator mechanism. The variator assembly includes a pulley supported on the shaft and having a ramp surface, and an endless rotatable device frictionally engaged with the pulley. The ramp surface inclines in an axial direction along the axis toward the endless rotatable device. The CVT further comprises an actuator mechanism that includes a wedge component that has a wedge surface interfacing with the ramp surface, and a rotary piston operatively connected to the wedge component. The rotary piston defines a first fluid chamber pressurizable to apply a rotational force that provides relative motion between the ramp surface and the wedge surface resulting in a wedge force on the ramp surface and a clamping force of the endless rotatable device on the pulley.
-
-
-
-
-
-
-
-
-
Search Results
115
records
(took 0.024 seconds)
