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US 10,663,051 B2Granted
Electric differential with torque vectoring function
OwnerJunnian Wang, Bin Yanginventors
Life of this patent
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Abstract
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.
Claims10
An electric differential with a torque vectoring function, comprising:
- a main drive mechanism arranged on one side of a differential, wherein an output end of the main drive mechanism is connected with a differential housing for transferring rotating power to the differential housing to drive a vehicle to run;
- a TV control drive mechanism arranged on the other side of the differential for outputting torque vectoring control power;
- a first single-row planetary gear train including a first sun gear, a first planetary gear, a first planet carrier and a first gear ring, wherein the first sun gear is coaxially and fixedly connected with a first half shaft, and the first planet carrier is connected with an output end of the TV control drive mechanism;
- a second single-row planetary gear train including a second sun gear, a second planetary gear, a second planet carrier and a second gear ring, wherein the second planet carrier is fixed to a drive axle housing, the second gear ring is fixedly connected with the first gear ring, and the second sun gear is rotatably supported on the first half shaft;
- and
- a third single-row planetary gear train including a third sun gear, a third planetary gear, a third planet carrier and a third gear ring, wherein the third sun gear is coaxially and fixedly connected with the first half shaft, the third planet carrier is fixedly connected with the second sun gear, and the third gear ring is fixedly connected with the differential housing, wherein
- the second single-row planetary gear train and the first single-row planetary gear train have the same planetary row characteristic parameters.
4 more elements
An electric differential with a torque vectoring function, comprising:
- a main drive mechanism arranged on one side of a differential, wherein an output end of the main drive mechanism is connected with a differential housing for transferring rotating power to the differential housing to drive a vehicle to run;
- a TV control drive mechanism arranged on the other side of the differential for outputting torque vectoring control power;
- a first single-row two-stage planetary gear train including a first sun gear, a first two-stage planetary gear, a first planet carrier and a first gear ring, wherein the first sun gear is coaxially and fixedly connected with a first half shaft, and the first planet carrier is connected with an output end of the TV control drive mechanism;
- a second single-row two-stage planetary gear train including a second sun gear, a second two-stage planetary gear, a second planet carrier and a second gear ring, wherein the second planet carrier is fixed to a drive axle housing, the second gear ring is fixedly connected with the first gear ring, and the second sun gear is rotatably supported on the first half shaft;
- and
- a third single-row planetary gear train including a third sun gear, a third planetary gear, a third planet carrier and a third gear ring, wherein the third sun gear is coaxially and fixedly connected with the first half shaft, the third planet carrier is fixedly connected with the second sun gear, and the third gear ring is fixedly connected with the differential housing, wherein
- the second single-row two-stage planetary gear train and the first single-row two-stage planetary gear train have the same planetary row characteristic parameters.
4 more elements
An electric differential with a torque vectoring function, comprising:
- a main drive mechanism arranged on one side of a differential, wherein an output end of the main drive mechanism is connected with a differential housing for transferring rotating power to the differential housing to drive a vehicle to run;
- a TV control drive mechanism arranged on the other side of the differential for outputting torque vectoring control power;
- a first single-row planetary gear train including a first sun gear, a first planetary gear, a first planet carrier and a first gear ring, wherein the first sun gear is coaxially and fixedly connected with a first half shaft, and the first planet carrier is connected with an output end of the TV control drive mechanism;
- a second single-row planetary gear train including a second sun gear, a second planetary gear, a second planet carrier and a second gear ring, wherein the second planet carrier is fixed to a drive axle housing, the second gear ring is fixedly connected with the first gear ring, and the second sun gear is rotatably supported on the first half shaft;
- and
- a third single-row two-stage planetary gear train including a third sun gear, a third two-stage planetary gear, a third planet carrier and a third gear ring, wherein the third sun gear is coaxially and fixedly connected with the first half shaft, the third planet carrier is fixedly connected with the second sun gear, and the third gear ring is fixedly connected with the differential housing, wherein
- the second single-row planetary gear train and the first single-row planetary gear train have the same planetary row characteristic parameters.
4 more elements
An electric differential with a torque vectoring function, comprising:
- a main drive mechanism arranged on one side of a differential, wherein an output end of the main drive mechanism is connected with a differential housing for transferring rotating power to the differential housing to drive a vehicle to run;
- a TV control drive mechanism arranged on the other side of the differential for outputting torque vectoring control power;
- a first single-row two-stage planetary gear train including a first sun gear, a first two-stage planetary gear, a first planet carrier and a first gear ring, wherein the first sun gear is coaxially and fixedly connected with a first half shaft, and the first planet carrier is connected with an output end of the TV control drive mechanism;
- a second single-row two-stage planetary gear train including a second sun gear, a second two-stage planetary gear, a second planet carrier and a second gear ring, wherein the second planet carrier is fixed to a drive axle housing, the second gear ring is fixedly connected with the first gear ring, and the second sun gear is rotatably supported on the first half shaft;
- and
- a third single-row two-stage planetary gear train including a third sun gear, a third two-stage planetary gear, a third planet carrier and a third gear ring, wherein the third sun gear is coaxially and fixedly connected with the first half shaft, the third planet carrier is fixedly connected with the second sun gear, and the third gear ring is fixedly connected with the differential housing, wherein
- the second single-row two-stage planetary gear train and the first single-row two-stage planetary gear train have the same planetary row characteristic parameters.
4 more elements
Dependencies are inferred from the claim text.