35results about How to "Improve cornering maneuverability" patented technology

The invention discloses a double-motor coupling drive axle with a torque directional distribution function. The double-motor coupling drive axle comprises a main driving mechanism, a bevel gear differential, a TV control driving mechanism, a first single-row planetary gear system, a second single-row planetary gear system, a third single-row planetary gear system, a first clutch, a third clutch, a second clutch and a fourth clutch. A first sun gear of the first single-row planetary gear system is rotatably supported on a first halt shaft, and a first gear ring is connected with the output end of the TV control driving mechanism. A second gear ring of the second single-row planetary gear system is fixed on a drive axle shell body, and a second sun gear is coaxially and fixedly connected with the first sun gear. A third sun gear of the third single-row planetary gear system is fixedly connected with a second planetary frame, and a third gear ring is fixedly connected with a differential shell. The first clutch is used for separating the first half shaft from a first planetary frame or connecting the first half shaft with the first planetary frame. The third clutch is used for separating the first half shaft from a third planetary frame or connecting the first half shaft with the third planetary frame. The second clutch is used for separating the first planetary frame from the drive axle shell body or connecting the first planetary frame with the drive axle shell body. The fourth clutch is used for separating the third planetary frame from the drive axle shell body or connecting the third planetary frame with the drive axle shell body.

The invention provides a torque directional distribution electric drive axle design method. The method includes the following steps that parameter matching calculation of a main drive motor of a torque directional allocation electric drive axle is completed according to vehicle dynamic indexes, the speed ratio of a cylindrical gear main speed reducer of the torque directional allocation electric drive axle is calculated according to the speed of a cruiser, and the number of stages of the main speed reducer is determined; the feature parameters k1 and k2 of a two-row planetary gear TV mechanism and the feature parameter k0 of a single-row two-line planetary gear coupling mechanism are calculated; the maximum differential torque deltaTmax of a torque directional distributor is calculated; the range of the peak torque T1038max of a TV control motor is determined, the range of the peak rotation speed n1038max of the TV control motor is determined, and a TV control motor is selected according to the ranges; the transmission ratio C of planetary gear speed reduction mechanisms is calculated according to deltaTmax and T1038max, the number of rows of the planetary gear speed reduction mechanisms of the torque directional distribution electric drive axle is determined, and feature parameters k3, (k4) and (k5) of each row are determined according to optimization targets, with the minimum feature parameter difference, of the planetary gear speed reduction mechanisms.

The invention discloses an electric differential mechanism with a directed torque distribution function. The electric differential mechanism with the directed torque distribution function comprises a main drive mechanism, a bevel gear differential mechanism body, a TV control drive mechanism used for outputting control power, a first single-row planetary gear system, a second single-row planetary gear system and a third single-row planetary gear system, wherein a first sun gear is coaxially and fixedly connected with a first half axle, and a first planetary carrier is connected with the control output end; a second planetary carrier is fixed to a drive axle housing, and a second gear ring is fixedly connected with a first gear ring; a second sun gear is supported on the first half axle through a bearing; a third sun gear is fixedly connected with the second sun gear, a third planetary carrier is fixedly connected with a differential mechanism shell, and a third gear ring is fixedly connected with the first half axle; and the second single-row planetary gear system and the first single-row planetary gear system have the same characteristic parameters. By means of the electric differential mechanism with the directed torque distribution function, drive torque of an automobile can be distributed to wheels on the left side and the right side in a directed mode according to control demands of control logic.

The invention provides a method and a structure for adjusting the vertical rigidity of a primary suspension device. The primary suspension device comprises a base, conical springs and limiting stoppers, each conical spring comprises a rubber body and a mandrel, a stopping hole is formed in the lower end of a bogie, the upper end of the mandrel is installed in the stopping hole of the bogie, and cavities are formed in the rubber body and the mandrel; the two conical springs are arranged in the base side by side in the longitudinal direction, the limiting stoppers are arranged in the cavities ofthe conical springs, each limiting stopper comprises a stop base and a stop rod, and the stop rod is integrally formed above the stop base; and an axle box is provided with an axle box seat, the baseis installed in the axle box seat, and when the bogie moves relative to the axle box in the vertical direction and the lower end of the mandrel abuts against the stop seats in the vertical direction,the primary suspension device can generate variable rigidity in the vertical direction. The capacity of a vehicle for passing through a small-curvature-radius curve can be remarkably improved, the primary suspension space is greatly saved, and the weight of the bogie is reduced.

The invention discloses an electric differential mechanism with a directed torque distribution function. The electric differential mechanism with the directed torque distribution function comprises a main drive mechanism, a bevel gear differential mechanism body, a TV control drive mechanism used for outputting control power, a first single-row planetary gear system, a second single-row planetary gear system and a third single-row planetary gear system, wherein a first planetary carrier is coaxially and fixedly connected with a first half axle, a first gear ring is connected with the control output end, and a first sun gear is supported on the first half axle through a bearing; a second gear ring is fixed to a drive axle housing, and a second sun gear is fixedly connected with the first sun gear and supported on the first half axle through a bearing; a third sun gear is fixedly connected with a differential mechanism shell, a third planetary carrier is fixedly connected with a second planetary carrier, and a third gear ring is fixedly connected with the first half axle; and the second single-row planetary gear system and the first single-row planetary gear system have the same characteristic parameters. By means of the electric differential mechanism with the directed torque distribution function, drive torque of an automobile can be distributed to wheels on the left side and the right side in a directed mode according to control demands of control logic.

The invention discloses an electric differential mechanism with a torque fixed direction allocation function. The electric differential mechanism comprises a main driving mechanism, a bevel gear main differential mechanism, a TV control driving mechanism, a first single row planetary gear system, a second single row planetary gear system and a third single row planetary gear system. The TV control driving mechanism is used for outputting control power; a first sun gear is fixedly coaxially connected to a first axle shaft, and a first gear ring is connected to a control output end; a second gear ring is fixed on a driving axle housing, and a second planetary frame is fixedly connected to the first planetary frame; a second sun gear is rotatably supported on the first axle shaft; a third sun gear is fixedly connected to the second sun gear, a third planetary frame is fixedly connected to a differential housing, and a third gear ring is fixedly connected to the first axle shaft, wherein the second single row planetary gear system has the same characteristic parameter as the first single row planetary gear system. The electric differential mechanism with the torque fixed direction allocation function enables driving torque of a vehicle to be directionally distributed to wheels at the left and right sides according to a control requirement of control logic.

The invention discloses an electric differential with torque orientation distribution function, comprising: a main drive mechanism; a bevel gear differential; a TV control drive mechanism for outputting control power; a first single-row planetary gear train, The first sun gear is coaxially fixedly connected with the first half shaft, and the first planetary carrier is connected with the control output end; for the second single-row planetary gear train, the second planetary carrier is fixed on the drive axle case, and the second ring gear is connected with the first The ring gear is fixedly connected; the second sun gear is supported on the first half shaft through bearings; the third single-row planetary gear train, the third sun gear is fixedly connected to the differential case, and the third planet carrier is splined to the first half shaft connected, the third ring gear is fixedly connected to the second sun gear; wherein, the second single-row planetary gear train has the same characteristic parameters as the first single-row planetary gear train. The invention enables the driving torque of the automobile to be directional distributed to the wheels on the left and right sides according to the control requirements of the control logic.

The invention discloses an electric differential device with a torque fixed-direction distribution function. The electric differential device comprises a main drive mechanism, a bevel gear differential device body, a TV control drive mechanism for outputting control power, a first single-row planetary gear system, a second single-row planetary gear system and a third single-row planetary gear system; a first planet carrier is coaxially and fixedly connected with a first half shaft, a first gear ring is connected with the control output end, and a first sun gear is arranged on the first half shaft through a bearing in a supported manner; a second gear ring is fixed to a drive bridge shell, and a second sun gear is fixedly connected with the first sun gear; the second sun gear is arranged on the first half shaft through a bearing in a supported manner; a third sun gear is fixedly connected with the first half shaft, a third planet carrier is fixedly connected with a second planet carrier, and a third gear ring is fixedly connected with a differential device shell; and the second single-row planetary gear system and the first single-row planetary gear system have the same characteristic parameters. By means of the electric differential device, the drive torque of an automobile can be distributed to wheels on the left side and the right side in a fixed-direction manner according to the control requirement of control logic.

The invention discloses a duplex planetary gear train torque directional distribution electric drive axle. The drive axle comprises a main drive motor, a TV control drive motor and a duplex planetarygear train, wherein a power output shaft of the main drive motor is connected with a shell of a bevel gear differential mechanism through a speed reduction mechanism; a first axle shaft is rotationally supported on the shell, penetrates through the shell and is connected with a first axle shaft gear of the bevel gear differential mechanism, and a second axle shaft is rotationally supported on theshell, penetrates through the shell and is connected with a second axle shaft of the bevel gear differential mechanism; and the duplex planetary gear train comprises a first sun gear, a second sun gear, a first end planet gear, a second end planet gear and a first planet carrier. The torque of wheels on the left side and the right side is distributed at will.

The invention discloses an electric differential mechanism with a torque directional distributing function. The electric differential mechanism comprises a main drive mechanism, a bevel gear differential mechanism, a TV control drive mechanism used for outputting control power, a first single-row planet gear train, a second single-row planet gear train and a third single-row planet gear train. A first sun gear is supported on a first half shaft through a bearing, a first gear ring is coaxially and fixedly connected with the first half shaft, and a first planet carrier is connected with the control output end. A second planet carrier is fixed to a drive axle housing, and a second sun gear is fixedly connected with the first sun gear. A second sun gear is supported on the first half shaft through a bearing. A third sun gear is fixedly connected with a second inner gear ring, a third planet carrier is fixedly connected with a differential mechanism shell, and a third gear ring is fixedly connected with the first half shaft. The second single-row planet gear train and the first single-row planet gear train are the same in characteristic parameter. According to the electric differential mechanism, the drive torque of an automobile can be directionally distributed to wheels on the left side and the right side according to the control requirement of the control logic.

The invention discloses an electric differential mechanism with a torque directional distribution function. The electric differential mechanism comprises a main driving mechanism, a cone gear differential mechanism, a TV control driving mechanism; a first signal row of planetary gear system, a second signal row of planetary gear system, and a third row of planetary gear system, wherein the TV control driving mechanism is used for outputting control power; a first sun wheel is coaxially and fixedly connected with a first half axle, and a first gear ring is connected with a control output end; a second gear ring is fixed on a driving axle shell, and a second planetary rack is fixedly connected with a first planetary rack; a second sun wheel is supported on the first half axle by a bearing; a third sun wheel is fixedly connected with the second sun wheel, a third planetary rack is fixedly connected with the first half axle, and the third gear ring is fixedly connected with a differential mechanism shell; the second signal row of planetary gear system, and the first single row of planetary gear system have same characteristic parameters. According to the electric differential mechanism disclosed by the invention, driving torque of an automobile can be directionally distributed to a left-sided wheel and a right-sided wheel according to a control requirement of control logic.

The invention discloses an electric differential with a directional torque distribution function. The electric differential comprises a main driving mechanism, a bevel gear differential, a TV control driving mechanism, a first single-row planetary gear train, a second single-row planetary gear train and a third single-row planetary gear train, wherein the TV control driving mechanism is used for outputting control power; a first sun wheel and a first half shaft are coaxially and fixedly connected, and a first planetary carrier is connected with the control output end; a second planetary carrier is fixed to a driving axle shell, and a second gear ring is fixedly connected with a first gear ring; a second sun wheel is supported on the first half shaft through a bearing; a third sun wheel is fixedly connected with the second sun wheel, a third planetary carrier is fixedly connected with the first half shaft, and a third gear ring is fixedly connected with a differential shell; and the second single-row planetary gear train and the first single-row planetary gear train have the same characteristic parameters. According to the electric differential, the driving torque of an automobile can be distributed to wheels on the left side and the right side in a directional mode according to control requirements of the control logic.

Provided are a rigidity adjusting method and structure for conical springs of a primary suspension device. The primary suspension device comprises a base, conical springs and limiting stoppers. Each conical spring comprises a rubber body and a mandrel. Stopping holes are formed in the lower end of a bogie, and the upper ends of the mandrels are installed in the stopping holes of the bogie. Cavities are formed in the rubber bodies and the mandrels. The two conical springs are arranged in the base side by side in the longitudinal direction, one limiting stopper is arranged in a cavity of each conical spring, and the lower end of each limiting stopper is connected with the base. An axle box is provided with an axle box seat, and the base is installed in the axle box seat. When the bogie movesrelative to the axle box in the vertical direction and the lower ends of the mandrels abut against the limiting stoppers, the primary suspension device can generate variable rigidity in the verticaldirection. According to the invention, the capacity of a vehicle for passing through a small-curvature-radius curve can be remarkably improved, the primary suspension space is greatly saved, and the weight of the bogie is reduced.