1645results about "Transmission elements" patented technology

A drive device for an electric vehicle is provided for reducing the input speed of a motor and transmitting the reduced input speed to an output shaft. The device comprises a first planetary gear set comprising three first planetary gear elements, a first element connected to the motor and a second element connected to a first output shaft, a second planetary gear set comprising three second planetary gear elements, a first element connected to a third element of the three first planetary gear elements, a second element connected to a second output shaft, and a third element fixed, and a third planetary gear set comprising three third planetary gear elements, a first and a second element each connected to two elements of the three first planetary gear elements, and a third element connected to a torque vectoring motor.

A transmission can include a shaft arrangement including an input shaft configured to couple to a primer mover and an output shaft coaxially aligned with the input shaft; a plurality of drive gears supported by the shaft arrangement and including a first drive gear, a second drive gear, and a third drive gear; a countershaft arrangement including a first and second countershaft supporting a plurality of pinion gears intermeshed with the first, second, and third drive gears; a clutch arrangement including a first clutch assembly and a second clutch assembly operable to lock the first, second, and third drive gears to the shaft arrangement to selectively provide four gear ratios between the input and output shafts.

The present disclosure relates to a powertrain for a work machine (50). The powertrain (100) comprises a first prime mover (10), a second prime mover (12), a set of first gears (14a, 14b), a set of second gears (16a, 16b), an engaging unit (24), and an actuator (26). The first prime mover (10) configured to engage a first shaft (18). The second prime mover (12) configured to engage a power take off (PTO) shaft (20). The first gears (14a, 14a) mounted on the first shaft (18) and the second gears (16a, 16b) mounted on the PTO shaft (20). The actuator (26) configured to be in communication with the engaging unit (24), and further configured to selectively displace the engaging unit (24) from the idling configuration to the engaging configuration to engage with one of the second gears (16a, 16b). Advantageously, the engaging unit (24) facilitates the coupling of the second prime mover (12) with the first prime mover (10); therefore the powertrain (100) provides the desired torque to meet the requirements.

The present invention relates to a dual clutch engine of a straddle type vehicle, comprising: a first clutch and a second clutch disposed on both left and right sides of an engine case; the main shaft comprises a first input shaft and a second input shaft which are separated from each other and coaxially arranged, the first clutch is connected with the first side of the first input shaft, the second clutch is connected with the second side of the second input shaft, and the first input shaft and the second input shaft are integrally located between the first clutch and the second clutch. According to the scheme, the layout of the first clutch, the second clutch and the gear shifting gear pair is improved, so that troubleshooting is facilitated.

A coaxial asynchronous motor drive system, including a speed reducer, an electric motor and a main housing, and further including a motor controller, wherein the electric motor and the speed reducer are connected to form a motor reducer assembly and mounted inside the main housing, and the motor controller is fixed to the main housing and connected to the motor reducer assembly. The system reduces parasitic loss of an auxiliary motor drive system of a battery electric four-wheel-drive vehicle and increases the range per charge of the vehicle, and the compact and integrated coaxial motor drive system facilitates maximum utilization of available space of the vehicle.

A hybrid drive system for a motor vehicle includes an internal combustion engine supplying first torques via a drive shaft to drive the motor vehicle and an electric machine having a rotor via which second drive torques can be supplied by the electric machine to drive the motor vehicle. An axle drive has an axle drive input gear wheel via which the axle drive can be driven. The system includes a gearbox having a first partial gearbox and a second partial gearbox. The first partial gearbox has a first planetary gear set having a first element, a second element, and a third element, The first partial gearbox also has a second planetary gear set having a fourth element, a fifth element, and a sixth element.

A bottom bracket gearbox for a micromobility vehicle (1) includes at least one shift element. Each shift element includes a shift ring (3) with an outer toothing (4). The shift ring assigned a shift pawl (5) for locking or releasing the shift ring (3) of the shift element. The shift ring being assigned to a gearbox component. At least one rotatably mounted shift drum (7) for actuating the assigned shift pawl (5) is axially parallel to a central axis of rotation of the gearbox (6). A shift actuator (8) is arranged in the interior of the shift drum (7), which is formed, at least partially or in sections, as a hollow shaft.

An electric work vehicle includes a housing, a motor to drive to a wheel, the motor being supported by the housing, a gearing including a plurality of gears, and a locking assembly including a pawl. The motor is connected to the gearing to drive the wheel. The locking assembly is operable to lock an outermost gear of the plurality of gears in a left-right direction of the electric work vehicle. The outermost gear includes a first diameter portion and a second diameter portion that is larger than the first diameter portion. The first diameter portion is located outside of the second diameter portion in the left-right direction of the electric work vehicle. The pawl is operable to engage with the first diameter portion to lock the outermost gear from rotating.

A hybrid transmission system with a multi-speed gearbox. The multi-speed gearbox is configured to rotationally couple a prime mover and an electric machine to different gear ratios during a hybrid drive mode. The multi-speed gearbox includes an electric drive interface gear positioned coaxial to a first primary shaft and a second primary shaft and idly mounted, free to spin, to the second primary shaft and an output shaft that includes an output shaft gear which is fixedly coupled thereto meshes with a gear on a secondary shaft.

A drive module assembly for use in a vehicle includes a housing defining a housing interior, and an electric machine including a rotor and a stator. The drive module assembly also includes a differential rotatably coupled to the rotor, a first input shaft rotatably coupled to the differential, a second input shaft rotatably coupled to the differential, a first counter shaft rotatably coupled to the first input shaft, a second counter shaft rotatably coupled to the second input shaft, a first output shaft rotatably coupled to the first counter shaft, and a second output shaft rotatably coupled to the second counter shaft. The differential is configured to receive rotational torque from the electric machine and configured to transmit rotational torque from the electric machine to the first and second input shafts.

A transmission arrangement for a vehicle, the transmission arrangement comprising a first input shaft comprising a first input shaft gear wheel rotationally fixed to the first input shaft, a second input shaft comprising a second input shaft gear wheel rotationally fixed to the second input shaft, a transmission shaft drivingly connectable to a pair of wheels of the vehicle, the transmission shaft comprising a transmission gear wheel rotationally fixed to the transmission shaft, the transmission gear wheel being arranged in meshing engagement with the first input shaft gear wheel, and a countershaft comprising a first countershaft gear wheel arranged in meshing engagement with the transmission gear wheel, and a second countershaft gear wheel arranged in meshing engagement with second input shaft gear wheel, wherein the second input shaft is drivingly connectable to the transmission shaft via the countershaft.

A hybrid electric gas turbine engine two speed transmission for a low spool drive including an accessory gearbox in operative communication with a low speed spool motor-generator; a transmission in operative communication with the accessory gearbox and the low speed spool motor-generator; a low speed spool angled gearbox in operative communication with the transmission; and a low speed spool in operative communication with the low speed spool angled gearbox.

The invention discloses a parallel shaft type heavy truck single-motor three-gear electric drive axle device, and relates to an electric vehicle power device, the parallel shaft type heavy truck single-motor three-gear electric drive axle device comprises a motor, the motor is in power connection with a first output shaft, the first output shaft is provided with a first gear shifter, and the first gear shifter is used for transmitting power to a first shaft sleeve or a three-gear change gear assembly; the first shaft sleeve is used for transmitting power to the first-gear change gear assembly and the second-gear change gear assembly; the differential mechanism is in power connection with a left half shaft and a right half shaft of a vehicle power output shaft, and the three-gear change gear assembly is in power connection with the planet row. The second shaft sleeve is in power connection with the second gear shifter and the planet row at the same time, and the second gear shifter is used for transmitting power output by the first-gear speed change gear assembly or the second-gear speed change gear assembly to the second shaft sleeve. The invention further discloses a control method of the parallel shaft type heavy truck single-motor three-gear electric drive axle device. The planet row three-gear speed change is adopted, the overall structure is compact, the integration degree is high, and the assembly size and cost are low.

A vehicle drive unit has a first and second electrical machines arranged in parallel, a manual gearbox arranged parallel to the electrical machines, a differential, a hollow drive shaft for connecting the first electrical machine to the gearbox, an output shaft within the drive shaft and for connecting the gearbox to the differential. A positive-locking shift unit has first and second shift elements and a sliding sleeve that is displaceable into three shift positions. In a first shift position, the first shift element is closed, and the second electrical machine is connected to the drive shaft with an actuating effect. In a second shift position, both shift elements are open, and the second electrical machine is decoupled from the gearbox. In a third shift position, the second shift element is closed, and the second electrical machine is connected to the output shaft with an actuating effect.

A method of oil pre-conditioning for an electric powertrain for a vehicle configured to provide electric propulsion of the vehicle, said electric powertrain comprising the first electric motor being linked to the first gear module, a secondary shaft being linked to the second gear module, the second electric motor being linked to the third gear module through a motor shaft, the differential being shared by both electric motors,The electric powertrain is surrounded by an oil. The method includes the steps of selecting an oil pre-conditioning configuration wherein the secondary shaft does not rotate and at least one of the first electric motor or the second electric motor rotates while the other is in driving mode leading to the heating of the oil to reach a threshold temperature and applying the selected oil pre-conditioning configuration.

A drive unit has first and second electrical machines arranged axially parallel, a manual gearbox arranged axially parallel to the electrical machines, a differential, a drive shaft, an output shaft, and a positive-locking shift unit having a first shift element, a second shift element, and a sliding sleeve displaceable via a first actuator into one of three shift positions. In a first shift position, the first shift element is closed and the second electrical machine is connected to the drive shaft with an actuating effect; in a second shift position, both shift elements are open and the second electrical machine is decoupled from the gearbox; in a third shift position, the second shift element is closed and the second electrical machine is connected to the output shaft with an actuating effect. The drive shaft is hollow, and the output shaft is arranged within the drive shaft.

Methods and systems are provided for a transmission. In one example, the transmission includes electric motor arranged on both sides thereof. In at least one example, electric motors on opposite sides of the transmission are coupled to a single input shaft.

Systems and methods for an electric drive unit. The electric drive unit, in one example, includes a first motor and a second motor arranged parallel to each other and rotationally coupled to a first input gear that is fixedly coupled to a first transmission shaft and a first clutch arranged coaxial to a second clutch. The drive unit further includes a second transmission shaft with an output gear rotationally coupled thereto and including a first and second mechanical interface configured to rotationally couple to a first drive axle and a second drive axle, where the output gear meshes with a gear that is directly rotationally coupled to a carrier in a planetary gear set.

A transmission for an integral differential, the transmission having a fixed housing part, and a first planetary gear set defining an axis of rotation. The first planetary gear set has a planet carrier fixed to the fixed housing part to seal a lubricant chamber spatially delimited by the planet carrier and the fixed housing part, where at least a portion of the lubricant chamber extends around the axis of rotation. The first planetary gear set further includes planetary bearings, the planetary bearings being supplied with lubricant from the lubricant chamber. Moreover, the first planetary gear set includes planet gears, each of the planet gears being rotatably mounted on the planet carrier via at least one respective bearing of the planetary bearings. Additionally, the first planetary gear set includes a sun gear and a ring gear, each meshing with the planet gears.

A bottom bracket gear in planetary design for a bicycle or a pedelec (1), with a pedal crankshaft (WAn) as input and a transmission output shaft (WAb) as output and further shafts (W1, W2, W3, W4, W5, W6), with at least one stepped planetary gear set (StPS) and one planetary gear set (PS) as a manual transmission, and with at least five switching elements (B1, B2, B3, K1, K2, K3, K4) for realizing several gears (G1, G1.1, G1.2, G1.3, G1.4, G1.5, G2, G2.1, G2.2, G2.3, G3, G4, G5, G6, G7), wherein the pedal crankshaft (WAn) is connectable and / or connected on the drive side to at least one gear set element of the stepped planetary gear set (StPS) and / or the planetary gear set (PS), wherein the transmission output shaft (WAb) is connectable and / or connected on the output side to at least one gear set element of the stepped planetary gear set (StPS) and / or the planetary gear set (PS), and wherein at least two of the shifting elements (B1, B2, B3, K1, K2, K3, K4) are designed as a positive-locking brake and / or freewheel brake. Furthermore, a bicycle or pedelec (1) with a bottom bracket transmission is proposed.

A gearing assembly (12) for a brake actuator (10), comprising the following features:a drive element (33),a first driven element (36),a second driven element (38), anda gearing output element (40),wherein, with respect to the drive element (33), the first driven element (36) has a different transmission ratio than the second driven element (38),wherein the first driven element (36) can be coupled to the gearing output element (40) by a first clutch (42), which comprises a first drive body (50) and a first driven body (52), andwherein the second driven element (38) can be coupled to the gearing output element (40) by a second clutch (46), which comprises a second drive body (62) and a second driven body (64) and is designed as an overrunning clutch,and a brake actuator (10) comprising a gearing assembly (12).

A bottom bracket gearbox includes a crank axle and a gearbox output shaft. The crank axle is connected to a second element of the first planetary gear set and connectable to a third element of the second planetary gear set via a fourth shift element and a second shaft. The gearbox output shaft is connected to a first element of the first planetary gear set and to a first element of the third planetary gear set. A third element of the first planetary gear set is connected to a second element of the second planetary gear set via a first shaft. A first element of the second planetary gear set is connected to a second element of the third planetary gear set via a third shaft. Two elements of the third planetary gear set are connectable via a fifth shift element to interlock the third planetary gear set.

The invention relates to a drive device for a vehicle axle of a two-track vehicle, having a drive unit (EM), in particular an electric motor, the power output shaft (5) of which delivers a drive torque to the two vehicle wheels of the vehicle axle via a reduction gear (3), wherein the reduction gear (7) has at least one gear stage (11) close to the unit and one gear stage (12) close to the wheel, wherein the vehicle axle is designed without an axle differential, and wherein each vehicle wheel is assigned a clutch (23) which can be controlled by a control unit and which, as a torque splitter, effects any desired torque distribution of the drive torque to the two vehicle wheels. According to the invention, the two clutches (23) acting as torque splitters are arranged in the gear stage (11) close to the unit.

Methods and systems are provided for an electric axle. The electric axle system includes, in one example, an electric machine, a multi-speed transmission that is rotationally coupled to the electric machine, rotationally coupled to two output shafts, and including a Ravigneaux gear set rotationally coupled and positioned coaxial to a differential. The electric axle system further includes a mode clutch configured to selectively ground a carrier or a ring gear in the Ravigneaux gear set, ground a sun gear in the Ravigneaux gear set, and couple the carrier or the ring gear to the sun gear in the Ravigneaux gear set.

The invention provides a multi-gear electric drive axle system, a combined structure and a vehicle. The multi-gear electric drive axle system comprises a motor, a differential mechanism, an output shaft, a first intermediate shaft, a second intermediate shaft and a third intermediate shaft. The motor inputs power through the first intermediate shaft, the third intermediate shaft and the second intermediate shaft in sequence, and the third intermediate shaft is hollowly sleeved on the output shaft; a first gear set and a first gear shifting mechanism are arranged on the third intermediate shaft; a second gear set, a second gear shifting mechanism and a third transmission gear are arranged on the second intermediate shaft, and the third transmission gear is meshed with the differential mechanism; gears in the first gear set are kept in a constant meshing state with corresponding gears in the second gear set to form a plurality of transmission gear pairs, and the transmission gear pairs have different transmission ratios; through different combination states of the first gear shifting mechanism, the second gear shifting mechanism and the corresponding gear sets, power transmission of multiple different gears can be achieved.

A drive unit includes an electric motor, a planetary gear mechanism, an input member, an output member, a first clutch, a stationary member, a second clutch, and a first urging member. The planetary gear mechanism includes a sun gear, a planet gear, a ring gear, and a planet carrier. The input member couples the electric motor and either the ring gear or the sun gear to each other. The output member is coupled to the planet carrier. The first clutch selectively couples / decouples the input member and the output member. The second clutch selectively couples / decouples the stationary member and the other of the ring gear and the sun gear. The first urging member urges the second clutch to turn the second clutch to an engaged state.

The invention relates to an electric drive system (1) with at least two drive trains that are at least partially separate from each other, a first electric machine (2) and a second electric machine (3), wherein the drive trains can be individually coupled to the first or second electric machine (2, 3), wherein at least one loose gear (18 to 21) is arranged for coupling, wherein several switching elements (S1, S1'; S2, S2') are arranged for coupling at least one of the loose gears (18 to 21) to a respective input shaft (4, 5) in order to selectively transmit its drive force to a respective output shaft (13), wherein the switching elements (S1, S1'; S2, S2') are configured to decouple the respective loose gear (18 to 21) from the input shaft (4, 5) when the electric drive system (1) is operated in a partial load operation with a power requirement below a certain threshold.

A method of lubricating a transmission system including: scavenging, via a lubrication tube of a lubrication system disposed within the transmission system, oil from at least one of a plurality of gears; directing the scavenged oil from the lubrication tube to a plurality of oil conduits extending from the lubrication tube; and translating a shift assembly in a longitudinal direction such that the shift assembly actuates a plurality of poppet valve assemblies disposed in the plurality of oil conduits between a closed position and an open position. The scavenged oil circumventing the plurality of poppet valve assemblies in the open position and the plurality of poppet valve assemblies form a seal with the plurality of oil conduits in the closed position.

The present invention relates to an electric drive axle and an electric truck. The electric drive axle is provided with a main drive electric motor, an auxiliary drive electric motor, a speed reducer assembly and a differential assembly, wherein the speed reducer assembly is provided with a main drive first speed reduction stage, an auxiliary drive first speed reduction stage, a first-gear transmission mechanism, a second-gear transmission mechanism and a gear shifting mechanism, wherein the gear shifting mechanism enables switching between a first gear, a second gear and a neutral gear; the main drive electric motor transmits power to the differential assembly via the main drive first speed reduction stage by means of the first-gear transmission mechanism or the second-gear transmission mechanism; the speed reducer assembly is further provided with an auxiliary drive power disengagement device; and the auxiliary drive electric motor can transmit power to the first-gear transmission mechanism via the auxiliary drive first speed reduction stage by means of coupling of the auxiliary drive power disengagement device, and avoids passive idling by means of disconnection of the auxiliary drive power disengagement device. The electric truck provided by the present invention has the electric drive axle.

The invention discloses an agricultural machine power gear shifting and power takeoff integrated transmission, and belongs to the field of agricultural machine power gear shifting transmission systems. According to the agricultural machine transmission comprising the dead axle gear system and the clutch system, combination and separation of a clutch are controlled through an electric control hydraulic system, and the functions of power gear shifting, power reversing and power output of an electric control power takeoff are achieved. An input shaft and an output shaft of the transmission are coaxially arranged, the center of the output shaft is sleeved with a shaft of the power takeoff in an empty mode, and the wet clutch is responsible for power transmission and switching of different gears. According to the transmission, forward three-gear power gear shifting, forward or reverse gear power reversing and automatic control over power output of the electric control power takeoff can be achieved, the structural design is optimized, so that the transmission is compact in structure and high in adaptability, the operation efficiency of agricultural machinery can be improved, the labor intensity is reduced, and the transmission adapts to load changes.