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9 条记录 (耗时 0.015 秒)

    ELECTRIC MULTI-MODE STEER-BY-WIRE SYSTEM AND MODE SWITCHING METHOD THEREOF
    1.
    发明申请
    ELECTRIC MULTI-MODE STEER-BY-WIRE SYSTEM AND MODE SWITCHING METHOD THEREOF 有权

    公开(公告)号：US20230033401A1

    公开(公告)日：2023-02-02

    申请号：US17882853

    申请日：2022-08-08

    申请人： Jilin University

    发明人： Junnian WANG ,  Ruihao FAN ,  Haolun GU ,  Kefu ZHU ,  Dongxu FU ,  Shuo ZHUANG

    IPC分类号： B62D7/15 ,  B62D5/04

    摘要： An electric multi-mode steer-by-wire system and a mode switching method thereof. The electric multi-mode steer-by-wire system includes a steering hand wheel unit including a steering hand wheel, a road-feeling motor, a reducer and an electromagnetic clutch, a steering execution unit including two steering electric motor mechanisms, a steering gear and two steering road wheels, an electronic control unit configured to control the steering hand wheel unit and the steering execution unit to achieve switching among two-side steering-road-wheel independent steer-by-wire mode, steering-trapezoidal steer-by-wire mode and electric power steering mode, and a mode selection and display unit. The electromagnetic clutch connected to the steering execution unit. The steering electric motor mechanisms drive the steering road wheels to steer independently through lead screw-nut pairs; or respectively form a hydraulic cylinder with the steering gear to jointly or independently drive the steering road wheels to steer with steering-trapezoidal manner.

    CENTRALIZED FULL-TIME ELECTRIC FOUR-WHEEL DRIVE SYSTEM
    2.
    发明申请
    CENTRALIZED FULL-TIME ELECTRIC FOUR-WHEEL DRIVE SYSTEM 审中-公开

    公开(公告)号：US20190283578A1

    公开(公告)日：2019-09-19

    申请号：US16355865

    申请日：2019-03-18

    申请人： Jilin University

    发明人： Junnian WANG ,  Bin YANG

    IPC分类号： B60K17/356 ,  B60K17/04 ,  B60K17/346

    摘要： A centralized full-time electric four-wheel drive system, including: a housing; a central differential; a main drive unit, whose power output gear meshes with the ring gear of the central differential; a dual-rotor motor having a first and a second output gear at either end; a rear-axle differential; a first planetary gearset (PG), whose sun gear and ring gear connect to the carrier of the central differential and the housing respectively; a second PG with common carrier of the first PG, whose sun gear connects to the sun gear of the central differential and ring gear meshes with the first output gear; a third PG, whose sun gear and ring gear connect to the semi-axle of the rear-axle differential and the housing respectively; a forth PG with common carrier of the third PG, whose sun gear connects to the rear-axle differential cage and ring gear meshes with the second output gear.

    ACTIVE STEERING SYSTEM USING PLANETARY GEAR SET WITH LESS TOOTH DIFFERENCE AND CONTROL METHOD THEREOF
    3.
    发明申请
    ACTIVE STEERING SYSTEM USING PLANETARY GEAR SET WITH LESS TOOTH DIFFERENCE AND CONTROL METHOD THEREOF 审中-公开

    公开(公告)号：US20190351933A1

    公开(公告)日：2019-11-21

    申请号：US16383512

    申请日：2019-04-12

    申请人： Jilin University

    发明人： Junnian WANG ,  Dedong GUO ,  Zheng LUO

    IPC分类号： B62D3/12 ,  B62D3/14

    摘要： An active steering system using planetary gear set with less tooth difference and a control method thereof. The system includes a first input shaft with one end connected to a steering wheel of an automobile and the other end fixedly sleeved with a first gear; a ring gear sleeve, where a ring gear is fixedly mounted in the ring gear sleeve circumferentially, and a hollow shaft protrudes from a center of an end of the ring gear sleeve and is fixedly sleeved with a second gear engaged with the first gear; a second input shaft with one end fixedly connected to an output end of a coupled motor and the other end fixedly sleeved with a third gear; an eccentric shaft with one end fixedly sleeved with a fourth gear engaged with the third gear and the other end sleeved in the hollow shaft and eccentrically provided with a boss.

    DUAL-MODE ACTIVE REAR-WHEEL STEERING DEVICE BASED ON DIFFERENTIAL PRINCIPLE
    6.
    发明公开
    DUAL-MODE ACTIVE REAR-WHEEL STEERING DEVICE BASED ON DIFFERENTIAL PRINCIPLE 审中-公开

    公开(公告)号：US20230145223A1

    公开(公告)日：2023-05-11

    申请号：US18064681

    申请日：2022-12-12

    申请人： Jilin University

    发明人： Junnian WANG ,  Dongxu FU ,  Shuo ZHUANG ,  Kefu ZHU ,  Chunlin ZHANG

    IPC分类号： B62D5/04 ,  B62D7/15

    CPC分类号： B62D5/043 ,  B62D5/0421 ,  B62D7/1581

    摘要： A dual-mode active rear-wheel steering device, including: a steering angle control motor, a speed-reduction mechanism, a differential mechanism assembly, two steering motion conversion mechanisms, a first electromagnetic clutch and a second electromagnetic clutch. An output end of the steering angle control motor is connected to the speed-reduction mechanism. The differential mechanism assembly is a bevel gear differential, in which center holes at outer ends a two half shafts are respectively provided with a raceway to form an inner cyclical ball-lead screw-nut pair with a first lead screw and a second lead screw of the steering motion conversion mechanisms. The first lead screw and the second lead screw are the same in parameters but with opposite rotation direction. The first electromagnetic clutch controls connection between a differential housing and a frame. The second electromagnetic clutch controls connection between the differential housing and the second half shaft.

    MULTI-MODE TORQUE VECTORING ELECTRIC DRIVE AXLE WITH SINGLE ACTUATOR
    7.
    发明申请
    MULTI-MODE TORQUE VECTORING ELECTRIC DRIVE AXLE WITH SINGLE ACTUATOR 有权

    公开(公告)号：US20230001777A1

    公开(公告)日：2023-01-05

    申请号：US17903379

    申请日：2022-09-06

    申请人： Jilin University

    发明人： Junnian WANG ,  Chunlin ZHANG ,  Zhe LIU ,  Changyang GUAN ,  Shoulin GAO

    IPC分类号： B60K1/02 ,  B60K17/16 ,  B60K17/04 ,  F16H48/36

    摘要： A multi-mode torque vectoring electric drive axle, including a main motor, an auxiliary motor, a differential, a first half shaft, a second half shaft, a primary reducer, a secondary reducer, a planetary gear set, a dual-gear mechanism and a three-phase actuator. The main motor and the auxiliary motor are respectively connected to input ends of the primary reducer and the secondary reducer. Output ends of the primary reducer and the secondary reducer are respectively connected to a differential housing and an input end of the planetary gear set. Two output ends of the planetary gear set are respectively connected to the three-phase actuator and the dual-gear mechanism. An output end of the dual-gear mechanism is connected to the differential housing. The three-phase actuator is a synchronous shifting mechanism for enabling locking, decoupling of the planetary gear set, and connection to the first half shaft.

    DUAL-MODE ELECTRIC DRIVE AXLE WITH TORQUE PARALLEL COUPLING AND TORQUE VECTORING
    8.
    发明申请
    DUAL-MODE ELECTRIC DRIVE AXLE WITH TORQUE PARALLEL COUPLING AND TORQUE VECTORING 有权

    公开(公告)号：US20220410684A1

    公开(公告)日：2022-12-29

    申请号：US17882899

    申请日：2022-08-08

    申请人： Jilin University

    发明人： Junnian WANG ,  Chunlin ZHANG ,  Changyang GUAN ,  Zhe LIU ,  Shoulin GAO

    IPC分类号： B60K1/00 ,  B60K17/04 ,  B60K17/16

    摘要： A dual-mode electric drive axle with torque parallel coupling and torque vectoring, including: a main motor, an auxiliary motor, a spur gear differential, a first half shaft, a second half shaft, a primary reducer, a secondary reducer, a dual-planetary gear set mechanism, a first clutch, a second clutch and a primary housing. The main motor and the auxiliary motor are respectively connected to input ends of the primary reducer and the secondary reducer. Output ends of the primary reducer and the secondary reducer are respectively connected to a housing of the spur gear differential and a gear ring of the dual-planetary gear set mechanism. A planet carrier of the dual-planetary gear set mechanism is connected to a sun gear through a first clutch, and a gear ring through a second clutch. A characteristic parameter of the dual-planetary gear set mechanism is 2.

    DUAL-MODE ACTIVE REAR-WHEEL STEERING DEVICE
    9.
    发明申请
    DUAL-MODE ACTIVE REAR-WHEEL STEERING DEVICE 有权

    公开(公告)号：US20210009190A1

    公开(公告)日：2021-01-14

    申请号：US16706670

    申请日：2019-12-06

    申请人： Jilin University

    发明人： Junnian WANG ,  Tingxu YAN ,  Dedong GUO ,  Kai WANG

    IPC分类号： B62D3/02 ,  B60K17/24 ,  B60K17/04 ,  B62D5/06 ,  B62D7/16 ,  B62D7/18 ,  F16H3/62 ,  F16H37/04

    摘要： A dual-mode active rear-wheel steering device, including: a steering motor, a main shaft, an intermediate gear, a transmission gear, a planetary gear coupling mechanism and a mode switching assembly. An output end of the steering motor is provided with a first input gear. An end of the main shaft drives a first rear wheel to rotate by a two-stage gear transmission system and a first rear-wheel motion conversion mechanism, and the other end of the main shaft drives a second rear wheel to rotate by the planetary gear coupling mechanism and a second rear-wheel motion conversion mechanism. The intermediate gear, the transmission gear and a sun gear of the planetary gear coupling mechanism are provided on the main shaft. The intermediate gear meshes with the first input gear.