A roll control device for a vehicle curtain has a damper, a speed-reduction device, and a unidirectional transmission device. The speed-reduction device is connected to the damper and has a sleeve, a gear mount, and multiple planet gears. The sleeve is hollow and has multiple inner teeth annularly arranged in the sleeve. The gear mount is mounted in and extends out of the sleeve and is connected to the damper. The planet gears are mounted rotatably on the gear mount and engage with the inner teeth in the sleeve. The unidirectional transmission assembly is connected to the speed-reduction device and has a transmission member and a unidirectional transmission device. The transmission member has a gear segment extending into the gear mount and engaging with the planet gears. The unidirectional transmission device is connected to the transmission member to control the transmission member to rotate in unidirectional.

A drive train of a motor vehicle between a drive unit and a first wheel axle and a second wheel axle is disclosed, the second wheel axle consisting at least of a first sub-axle and a second sub-axle, and the first and the second sub-axle being connected to a differential for torque distribution. The differential is an individual differential which is operatively connected to the drive unit via a drive shaft and which can optionally be operatively connected to the first wheel axle for torque distribution.

The SIVRT disclosed includes a unique, ordered geartrain; it allows a large-continuous range of input:output velocity ratios (forward or reverse). This range is controlled by fluid-coupled gearsets which direct the power flow to the output shaft. The SIVRT requires no torque converter or friction clutches and has been designed for fully-loaded work machines which must operate reliably at creep speeds for extended periods with 1-3 stop-reverse-stop-forward operations every minute of the workshift. The clutchless Vformer system disclosed herein provides a robust, heavy-duty, continuously-variable mechanical transmission especially designed and scaled for applications in vehicles and working machines which operate at creep speeds with frequently stop-start-reverse activity.

A gear transmission with a continuously variable gear ratio, comprising an input part (A) defining an input axis, an output part (E) defining an output axis, the output axis being aligned with the input axis, and a set of gear wheels (B1, B2, C, D1, D2) connecting the input part (A) to the output part (E), wherein said set of gear wheels (B1, B2, C, D1, D2) is arranged as an input body (11) in contact with the input part (A) and an output body (12) in contact with the output part (E), and the output body (12) being in gear tooth contact with the input body (11).

A gear transmission with a continuously variable gear ratio, comprising an input part (A) defining an input axis, an output part (E) defining an output axis, the output axis being aligned with the input axis, and a set of gear wheels (B1, B2, C, D1, D2) connecting the input part (A) to the output part (E), wherein said set of gear wheels (B1, B2, C, D1, D2) is arranged as an input body (11) in contact with the input part (A) and an output body (12) in contact with the output part (E), and the output body (12) being in gear tooth contact with the input body (11).

A gear transmission with a continuously variable gear ratio, comprising an input part defining an input axis, an output part defining an output axis, the output axis being aligned with the input axis, and a set of gear wheels connecting the input part to the output part, wherein said set of gear wheels is arranged as an input body in contact with the input part and an output body in contact with the output part, and the output body being in gear tooth contact with the input body.

A gear transmission with a continuously variable gear ratio, comprising an input part defining an input axis, an output part defining an output axis, the output axis being aligned with the input axis, and a set of gear wheels connecting the input part to the output part, wherein said set of gear wheels is arranged as an input body in contact with the input part and an output body in contact with the output part, and the output body being in gear tooth contact with the input body.

The invention relates to an electric drive system (10) for a motor vehicle, having a first electric engine (16) with a first rotor (20), a second electric engine (24) with a second rotor (28), and a planetary gearbox (30), which has a first planetary gear set (32), a second planetary gear set (32), a first input shaft (36), a second input shaft (38), a first output shaft (40) and a second output shaft (42), wherein the first input shaft (36) is formed to introduce first torques, emanating from the first electric engine (16), into the planetary gearbox (30), the second input shaft (38) is formed to introduce second torques, emanating from the second electric engine (24), into the planetary gearbox (30), the first output shaft (40) is formed to discharge third torques from the planetary gearbox (30), and the second output shaft (42) is formed to discharge fourth torques from the planetary gearbox (30).

The invention relates to an electric drive system (10) for a motor vehicle, having a first electric engine (16) with a first rotor (20), a second electric engine (24) with a second rotor (28), and a planetary gearbox (30), which has a first planetary gear set (32), a second planetary gear set (32), a first input shaft (36), a second input shaft (38), a first output shaft (40) and a second output shaft (42), wherein the first input shaft (36) is formed to introduce first torques, emanating from the first electric engine (16), into the planetary gearbox (30), the second input shaft (38) is formed to introduce second torques, emanating from the second electric engine (24), into the planetary gearbox (30), the first output shaft (40) is formed to discharge third torques from the planetary gearbox (30), and the second output shaft (42) is formed to discharge fourth torques from the planetary gearbox (30).