583results about "Transmission elements" patented technology

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 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.

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.

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.

Embodiments of the invention provide a door opener for an electrical appliance of household equipment. The door opener comprises an electric motor and a pusher drivable by means of the electric motor for pressing co-operation with the door of the electrical appliance. A power transmission mechanism is provided between the electric motor and the pusher, which is capable of ensuring a variable effective velocity of the pusher at the same rotational frequency of the electric motor. Certain embodiments provide for a multi-stage rack and pinion gear for this purpose, which is formed by a gear rim and a toothed rack, which can transmit the driving force of the electric motor to the pusher via various gear pairings that can be brought alternately into meshing engagement with one another.

Provided is a unit including: an input element; an output element; and a gear device including a first rotational part, a second rotational part, a third rotational part, and a fourth rotational part arranged in this order on an alignment chart. The input element is connectable to the first rotational part and connectable to the second rotational part, the output element is connected to the third rotational part, and the fourth rotational part is switchable between a rotating state and a non-rotating state. The gear device includes a first planetary gear mechanism and a second planetary gear mechanism, the first rotational part is implemented by the sixth rotational element, the second rotational part is implemented by coupling the first rotational element and the fifth rotational element, the third rotational part is implemented by the second rotational element, and the fourth rotational part is implemented by coupling the third rotational element and the fourth rotational element.

A manual transmission (SG) for a vehicle (100) comprising a first shifting element (A), a second shifting element (B), a first planetary gear set (PS1) with a first sun shaft (SO1), a first ring gear shaft (HR1) and a first carrier shaft (ST1), and a second planetary gear set (PS2) with a second sun shaft (SO2), a second ring gear shaft (HR2) and a second carrier shaft (ST2), wherein the first planetary gear set (PS1) and the second planetary gear set (PS2) are radially nested, wherein the first sun shaft (SO1) and the second carrier shaft (ST2) are rotationally fixed, wherein the first ring gear shaft (HR1) and the second sun shaft (SO2) are rotationally fixed to a stationary component, wherein in the closed state of the first shifting element (A) a first gear with a first ratio is engaged, wherein in the first gear the second ring gear shaft (HR2) is configured as the input and the first carrier shaft (ST1) as the output,• wherein, in the closed state of the second switching element (B), a second gear with a second gear ratio is engaged, wherein in the second gear the second ring gear shaft (HR2) is configured as the input and the second web shaft (ST2) as the output.

The invention relates to a gear assembly (1) for use with an electric motor (2) comprising: - a drive gear (9) adapted to be connected to an output shaft (3) of an electric motor (2), the drive gear (9) being rotatable around a transmission axis (7), - a planetary gear assembly (10) comprising at least one sun gear (11), two or more planetary gear members (13) rotatably supported on a carrier (12) about respective planetary gear axes (18,19) and meshing with at least one sun gear (11) and optionally a ring gear (15), an input stage that is connected to the drive gear (9), and an output stage that is adapted to be connected to a drive member (20) for rotation of the drive member about the transmission axis (7), - a clutch member (23) that is adapted for slippingly connecting the ring gear (15) with the carrier (12) or with the drive member (20), and - a brake member (24) that is adapted for fixedly engaging a part of the planetary gear assembly (10) with a locking part of the gear assembly (1). In a low speed range of the gear assembly, the clutch member (23) and the brake member (24) are operated such that torque passes from the drive gear (9) to the planetary gear assembly (10), and through the output stage of the planetary gear assembly (10) to the drive member (20). In a high speed range of the electric motor, the clutch member (23) and the brake member (24) are operated such that the ring gear (15) is fixedly connected to the drive member (20) and is rotated about the transmission axis (7) such that torque passes from the drive gear (9) to the drive member (20) via the carrier (12).

Transmission (210) for a vehicle (1201) with a drive shaft (221) and an output shaft (222), with an automatic transmission (213) composed of a plurality of planetary gear sets for switchable adjustment of a plurality of speed ratios between a speed of the drive shaft (221) and a speed of the output shaft (222), and with a reversing unit (215) connected in series in a drive connection between the drive shaft (221) and the output shaft (222) to the automatic transmission (213) for switchable adjustment of a reversal of the direction of rotation acting on the plurality of speed ratios between a direction of rotation of the drive shaft (221) and a direction of rotation of the output shaft (222), characterized in that the transmission (210) has a transmission housing (225; 441, 443, 545) in which the automatic transmission (213) and the reversing unit (215) are jointly arranged are that the gearbox housing (225;441, 443, 545) a housing wall (441, 545) extending continuously in the direction of extension of the drive shaft (221) and the output shaft (222) and enclosing the automatic transmission (213) and the reversing unit (215), and a housing cover (443) closing the housing wall (441, 545) on the side of the output shaft (222), wherein the output shaft (222) extends through an opening in the housing cover (443).

The application discloses a hydraulic control cog-type clutch four-wheel drive mechanism and a working method thereof, and belongs to the technical field of four-wheel drive mechanisms.The hydraulic control cog-type clutch four-wheel drive mechanism comprises a four-wheel drive piston and a hydraulic cylinder forming a sealed hydraulic cavity, wherein the hydraulic cavity is connected with a main oil path, the main oil path is provided with a switch valve, and the main oil path supplies oil to the hydraulic cavity when the switch valve is opened; the hydraulic cylinder is provided with an oil discharge hole; the oil discharge hole is communicated with the hydraulic cavity and discharges oil to a gearbox; the end faces of the four-wheel drive piston and the four-wheel drive output shaft are respectively provided with trapezoidal teeth capable of being engaged; the four-wheel drive output shaft is connected with a transmission output shaft through a mandrel; and the mandrel and the transmission output shaft realize radial positioning constraint of the four-wheel drive output shaft through a cylindrical roller bearing.The four-wheel drive piston is controlled by hydraulic pressure, the four-wheel drive piston and the four-wheel drive output shaft are combined or separated, power switching between two-wheel drive and four-wheel drive is realized, the tooth part structure of the cog-type clutch is designed, the cog-type clutch realizes self-centering function through the tooth end face inclination angle, and the mechanism realizes stable engagement, accurate limiting and self-locking function.

A method for power transmission method includes providing first and second shafts, a gear assembly having first and second gear ratios, and first and second coupling assemblies. The first coupling assembly enabling torque transfer from the first shaft to the second shaft, and the second coupling assembly enabling torque transfer from the first shaft to the second shaft. The speed of the first shaft varies, wherein the deployment of a locking element of the second coupling assembly is based on the speed of the first shaft.

A motor vehicle transmission (2) has a first drive input shaft (9), a second drive input shaft (10), a drive output shaft (11), and a first planetary gearset (P1) and a second planetary gearset (P2). The drive input shafts (9, 10) are designed to be coupled in each case to a respective drive machine. In addition, a first shifting device (26) and a second shifting device (27) are provided. The motor vehicle transmission can be part of a drive unit (1), a motor vehicle drive axle, or a hybrid or electric vehicle. A method is provided for operating a motor vehicle transmission and a drive unit.

The invention relates to a gearshift arrangement (6) for a bicycle, in particular a bicycle with an auxiliary motor. The gearshift arrangement (6) is specifically designed for a hub gear. The gearshift arrangement has a hollow main transmission shaft (12) on which a driver (26) is rotatably mounted. At least one planetary gear (29a) is provided, which has at least one gear component (27, 29) rotatably mounted on the main transmission shaft in the form of a planet carrier (27) or a sun gear (29). A clutch (30, 31) has a clutch element (30a, 31a) that is axially displaceable between an engaged and a disengaged switching state. In the engaged switching state, the gear component is rotationally fixed to the main transmission shaft and is freely rotatable relative to the transmission shaft in the disengaged switching state. An actuating element (13) is rotatably mounted in the main transmission shaft.A cam control (45a) connects the actuating element to the axially displaceable coupling element and converts a rotational movement of the actuating element into an axial displacement of the axially displaceable coupling element. The cam control has at least two switching fingers (22) spaced apart from each other in the direction of rotation of the actuating element. The coupling (30, 31) has an axially acting spring (41) that acts on the axially displaceable coupling element (30a, 31a) and moves the axially displaceable coupling element towards the axially stationary coupling element (30b, 31b) of the coupling.

An electric traction axle / beam, e-axle / e-beam, for a vehicle comprising at least one electric machine, a pair of drive shafts each connected to a respective wheel of the vehicle and a transmission chain operatively connecting the electric machine to the pair of drive shafts,the transmission chain comprising a first transfer system, a second transfer system, and a differential unit operationally interposed in series between them,the drive shafts being coaxial to a longitudinal axis of the axle, the electric machine being subtended by a parallel and separate axis of the longitudinal axis.

An electric drive module (EDM) for an electrified vehicle includes an electric motor and a two-speed gearbox including: a housing; a first planetary gearset (PG) having a first sun gear coupled to the electric motor; a second compound PG having a second sun gear coupled to the first PG; a third PG having a third sun gear coupled to the second PG and a third planetary carrier coupled to an output of the gearbox. A first torque transfer device (TTD) selectively couples a second ring gear of the second PG to the housing; and a second TTD selectively couples a first ring gear of the first PG to the housing. The gearbox is selectively switchable among (i) a first gear where the first TTD is engaged and the second TTD is disengaged; and (ii) a second gear where the second TTD is engaged and the first TTD is disengaged.

Hybrid powertrain (10) for starting and propelling a vehicle (8), comprising: a motor (12); a first motor / generator (14); a second motor / generator (16); and a single-stage, widely branched, electrically variable transmission (18) comprising the following: a drive element (52); a stationary element (54); a gear train (44); a torque transmission device (56); a compound planetary gear assembly (20) comprising a ring gear structure (24), a first sun gear element (26-1, 126-1, 226-1, 326-1), a second sun gear element (26-2, 126-2, 226-2, 326-2), a support structure (28), and a double pinion assembly comprising a first pinion gear (30-1, 130-1, 330-1) meshing with the first sun gear element and a second pinion gear (30-2, 130-2, 330-2) meshing with the first pinion gear (30-1, 130-1, 330-1) and the ring gear structure (24); and a highest numerical translation ratio of approximately 4 to 1 and a lowest numerical translation ratio of approximately 0.7 to 1; where: The composite planetary gear arrangement (20) comprises a first node (32-1), a second node (32-2), a third node (32-3) and a fourth node (32-4), wherein the first, second, third and fourth nodes (32-1, 32-2, 32-3, 32-4) have at least a gear ratio of 3 to 1 between the torque transmission device (56) and the output element (52); the second motor / generator (16) is functionally connected via the transmission train (44) to the compound planetary gear assembly (20) at the first node (32-1); the output element (52) is functionally connected to the composite planetary gear assembly (20) at the second node (32-2); the motor (12) is functionally connected to the composite planetary gear assembly (20) at the third node (32-3); the first motor / generator (14) is functionally connected at the fourth node (32-4) to the composite planetary gear assembly (20); The torque transmission device (56) can be engaged to ground the third node (32-3) to the stationary element (54); and each of the first and second motors / generators (14, 16) uses non-rare earth magnets.

An axle assembly having an electric motor module, a drive pinion, a planetary gear set, and at least one one-way freewheel clutch. The planetary gear set may operatively connect the electric motor module and the drive pinion. The one-way freewheel clutch may be configured to selectively couple at least two components of the planetary gear set.

The present application proposes a gear shifting method for use in electric vehicles, wherein the gear shifting method at least comprises: a speed adjustment process, wherein a speed adjustment request is issued to adjust the rotational speed of the drive motor of the electric vehicle, ensuring that the absolute rotational speed difference between the output-side engagement component and the input-side engagement component remains within the range of 10 rpm to 30 rpm when the input-side engagement component and the output-side engagement component of the transmission, driven by the drive motor, are disengaged; and an engagement process, wherein an engagement command is issued after the completion of the speed adjustment process, so as to engage the input-side engagement component with the output-side engagement component for gear engagement. The positive effects of the present application are as follows: it can greatly increase the success rate of gear shifting; it eliminates the need for synchronizer rings used in a conventional transmission for assisting in gear engagement.

A ring gear for a planetary gearset and a transmission having the same. The planetary gearset receives an input via a sun shaft to supply an output via a carrier in response to arresting of rotation of the ring gear around an axis. The ring gear includes a plurality of tooth surfaces and opposing tooth surfaces that are distributed around the axis. A pawl, while engaged with the tooth surfaces, is permitted to ratchet on the ring gear in a first angular direction and arrests rotation of the ring gear in a second angular direction opposite to the first angular direction. An opposing pawl, while engaged with the opposing tooth surfaces, is permitted to ratchet on the ring gear in the second angular direction and arrests rotation of the ring gear in the first angular direction. A gear ratio is selected by selectively actuating the pawls and the opposing pawls.

A transverse drive assembly includes a power source, a transmission mechanism, and a reduction mechanism. The transmission mechanism includes first and second shafts arranged in parallel. The first shaft is connected to the power source and is provided thereon with a first gear and a third gear, and the second shaft includes a second gear and a fourth gear. The first gear is meshed with the second gear, and the third gear is meshed with the fourth gear. The first gear is rotationally connected to the first shaft through a clutch or the second gear is rotationally connected to the second shaft through a clutch, and the third gear is connected to the first shaft through a clutch or the fourth gear is connected to the second shaft through a clutch. The reduction mechanism is sleeved on the second shaft and connected to the differential for transmission.

A method of operating an electrified axle assembly includes selecting a reduction stage of a multistage reduction gear set in a split transmission assembly that is longitudinally split across the axle assembly. The method further includes selecting, corresponding to the selected reduction stage, a gear set from a plurality of selectable gear sets to cooperate with the selected reduction stage and provide one of at least three distinct transmission ratios.

The present invention is entitled "Electric Brake." In some examples, the present invention provides a brake assembly including an actuator assembly configured to cause translation of a piston to compress a disc stack. The actuator assembly is configured to generate a first torque about a motor axis using a motor and a second torque from the first torque using a harmonic drive. The actuator assembly can include a gear set configured to cause a linear actuator to translate the piston using the second torque. In some examples, the actuator is configured to translate the piston along a compression axis that is different from the motor axis.

There is provided an air pressurisation system for an aircraft, the air pressurisation system comprising: a transmission for driving a rotor of a blower compressor for the air pressurisation system, wherein the transmission comprises: a first input configured to receive drive from a spool of a gas turbine engine; a second input; and an output configured to drive to the rotor of the blower compressor, wherein a speed of the output is determined by a function of speeds of the first and second inputs; and a brake coupled to the second input, wherein the brake is operable to engage and brake the transmission at the second input, in order to fix a transmission ratio of the transmission between the first input and the output.

An electric motor assembly is disclosed. The electric motor assembly can include a plurality of electric motors coupled to a common gear assembly. Individual motors within the electric motor assembly can be dynamically controlled to increase motor efficiency at a given torque and RPM output.

The application provides a hybrid power mechanism and a vehicle, the hybrid power mechanism comprises a first input shaft and a second input shaft, the first input shaft and the second input shaft are respectively connected with a first transmission assembly on a first intermediate shaft in a transmission mode, and are respectively connected with a second transmission assembly on a second intermediate shaft in a transmission mode; an output shaft comprises a first half shaft and a second half shaft, the first half shaft is connected with the first intermediate shaft and the second intermediate shaft in a transmission mode, the first half shaft is provided with a first transmission unit and a second transmission unit, and the second half shaft is provided with a third synchronizer; an engine is connected with the first input shaft and the second input shaft through a control mechanism, a first motor is connected with the first input shaft or the second input shaft in a transmission mode, and a second motor is connected with the output shaft. The hybrid power mechanism has the advantages of compact structure, short length, convenience for arrangement on the vehicle, corresponding ultra-low speed gears for each gear, more customer selection, adoption of the first motor and the second motor, and advantages of reducing fuel consumption and saving use cost.

The utility model relates to a double-speed transmission. The transmission includes: a transmission housing; an input shaft; an intermediate shaft; an output shaft; the power output device is fixed on the transmission shell through a bolt and is coupled with the input shaft through a gear; and two gear ratios, the two gear ratios coupling the input shaft with the output shaft. The transmission may cause a single motor to push the vehicle and drive an external load when not pushing the vehicle.