Abstract: 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.

Abstract: 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.

Abstract: The present invention discloses a dual-motor coupling drive axle with a torque vectoring function. The dual-motor coupling drive axle includes: a main drive mechanism; a bevel gear differential; a TV control drive mechanism; a first single-row planetary gear train, of which a first sun gear is rotatably supported on a first half shaft and a first gear ring is connected with an output end of the TV control drive mechanism; a second single-row planetary gear train, of which a second gear ring is fixed to a drive axle housing and a second sun gear is coaxially and fixedly connected with the first sun gear; a third single-row planetary gear train.

Abstract: The present invention discloses a dual-motor coupling drive axle with a torque vectoring function. The dual-motor coupling drive axle includes: a main drive mechanism; a spur gear differential; a TV control drive mechanism; a first single-row planetary gear train, of which a first sun gear is rotatably supported on a first half shaft and a first gear ring is connected with an output end of the TV control drive mechanism; a second single-row planetary gear train, of which a second gear ring is fixed to a drive axle housing and a second sun gear is fixedly connected with the first sun gear; a third single-row planetary gear train.

Abstract: The present invention discloses an electric differential with a torque vectoring function. The electric differential includes: a main drive mechanism; a bevel gear differential; a TV control drive mechanism used for outputting control power; a first single-row planetary gear train, of which a first sun gear is coaxially and fixedly connected with a first half shaft and a first planet carrier is connected with a control output end; a second single-row planetary gear train, of which a second planet carrier is fixed to a drive axle housing, a second gear ring is fixedly connected with a first gear ring and a second sun gear is supported on the first half shaft through a bearing.

Abstract: The present invention discloses a dual-motor coupling drive axle with a torque vectoring function. The dual-motor coupling drive axle includes: a main drive mechanism; a spur gear differential; a TV control drive mechanism; a first single-row planetary gear train, of which a first sun gear is rotatably supported on a first half shaft and a first gear ring is connected with an output end of the TV control drive mechanism; a second single-row planetary gear train, of which a second gear ring is fixed to a drive axle housing and a second sun gear is fixedly connected with the first sun gear; a third single-row planetary gear train.

Abstract: The present invention discloses an electric differential with a torque vectoring function. The electric differential includes: a main drive mechanism; a bevel gear differential; a TV control drive mechanism used for outputting control power; a first single-row planetary gear train, of which a first sun gear is coaxially and fixedly connected with a first half shaft and a first gear ring is connected with a control output end; a second single-row planetary gear train, of which a second gear ring is fixed to a drive axle housing, a second planet carrier is fixedly connected with a first planet carrier and a second sun gear is supported on the first half shaft through a bearing.

Abstract: The present invention discloses a dual-motor coupling drive axle with a torque vectoring function. The dual-motor coupling drive axle includes: a main drive mechanism; a bevel gear differential; a TV control drive mechanism; a first single-row planetary gear train, of which a first sun gear is rotatably supported on a first half shaft and a first gear ring is connected with an output end of the TV control drive mechanism; a second single-row planetary gear train, of which a second gear ring is fixed to a drive axle housing and a second sun gear is coaxially and fixedly connected with the first sun gear; a third single-row planetary gear train.

Abstract: The present invention relates to a steer-by-wire and independent-drive integrated wheel-side electric drive device, including a first double-rotor motor and a second double-rotor motor, fixedly arranged coaxially along an axial direction of a motor, an inner rotor of the first double-rotor motor is connected with a first drive shaft and is used for driving a wheel on one side to rotate; an inner rotor of the second double-rotor motor is connected with a second drive shaft and is used for driving a wheel on the other side to rotate; an outer rotor of the first double-rotor motor and an outer rotor of the second double-rotor motor are respectively connected with a driving gear by virtue of an output shaft.

Abstract: An electric drive axle comprises: a housing; a drive motor having an output shaft for outputting torque; a main reducer configured to perform two-stage reduction to amplify the torque outputted from the output shaft; a differential including a differential housing, a planetary gear shaft, a left and right drive shafts rotating about an axis of rotation; a torque vectoring motor; a double row planetary gear reduction mechanism configured to amplify power outputted from the torque vectoring motor; a double row planetary gear torque vectoring mechanism connected to the double row planetary gear reduction mechanism and configure to receive torque outputted from the double row planetary gear reduction mechanism and output reverse torque in contrast to the torque received; and a single row double planetary gear coupling mechanism providing opposite direction torques to the left and right drive shafts respectively.

Abstract: A drive axle of electric distribution torque, comprise of: a drive motor having a output shaft for outputting torque; differential including differential housing, a drive shaft. the left and right drive half axle rotating about an axis of rotation; double row planetary gear mechanism outputting power of the motor output shaft which will be reduced two-stage; double planetary gear torque distribution mechanism connected to the double planetary gear reduction mechanism, receiving the double planetary gear reduction mechanism output torque, and outputs reverse torque in contrast to said torque; single row double planetary gear coupling mechanism providing opposite direction torque to the left and right axle.

Abstract: The invention discloses an automobile active steering system with a cycloidal-pin wheel mechanism, and aims at overcoming the contraction between light steering effort and flexibility. The automobile active steering system comprises a steering hand wheel (47), a steering shaft (52), a steering transmission shaft (48), a cycloidal-pin wheel type transmission mechanism (49), a rotary hydraulic valve (50), and a steering box (51). The steering hand wheel (47) is connected with an upper end of the steering shaft (52) by use of a spline pair, a lower end of the steering shaft (52) is connected with an upper end of the steering transmission shaft (48) by use of a universal joint, a lower end of the steering transmission shaft (48) is connected with a right end of an input shaft (21) of the cycloidal-pin wheel type transmission mechanism (49) by use of a universal joint.

Abstract: The invention discloses an automobile active steering system with a cycloidal-pin wheel mechanism, and aims at overcoming the contraction between light steering effort and flexibility. The automobile active steering system comprises a steering hand wheel (47), a steering shaft (52), a steering transmission shaft (48), a cycloidal-pin wheel type transmission mechanism (49), a rotary hydraulic valve (50), and a steering box (51). The steering hand wheel (47) is connected with an upper end of the steering shaft (52) by use of a spline pair, a lower end of the steering shaft (52) is connected with an upper end of the steering transmission shaft (48) by use of a universal joint, a lower end of the steering transmission shaft (48) is connected with a right end of an input shaft (21) of the cycloidal-pin wheel type transmission mechanism (49) by use of a universal joint.