1130results about "Differential gearings" patented technology

A vehicle drive device includes a rotating electric machine disposed on a first axis, an output gear mechanism and an output member disposed on a second axis, and a case that houses these elements. The second axis is disposed below the first axis, a suction port of an oil pump is disposed below the first axis and the second axis and between the first axis and the second axis in a width direction, an outermost gear is disposed so that a direction of rotation at a lower end portion of the outermost gear during forward movement of a vehicle points toward the suction port, and a part of a peripheral wall section of the case that faces a lower surface of the rotating electric machine is inclined downward toward the suction port.

The invention discloses a transmission mechanism and an all-terrain vehicle using the transmission mechanism, the transmission mechanism comprises a linkage assembly, an output shaft, two sets of transmission parts, a sensor module and a controller, the linkage assembly is connected with the output shaft, and the two sets of transmission parts are arranged on the two sides of the linkage assembly respectively; each transmission part comprises a first transmission part, a second transmission part, a supporting part, a first friction part, a second friction part, an extrusion module and a driving unit, the first transmission parts are connected with the output shaft, the second transmission parts are rotationally connected with the supporting parts, and the first friction parts are connected with the first transmission parts; the second friction piece is connected with the second transmission piece and abuts against the first friction piece, the extrusion module abuts against the first friction piece or the second friction piece, the driving unit is connected with the extrusion module, and the controller is electrically connected with the driving unit and the sensor module. According to the transmission mechanism, the power loss is reduced, the all-terrain vehicle is helped to escape, and the control stability of a driver is improved.

The invention relates to an assembly (110) for a differential unit (10) of a vehicle (1), comprising: - a differential housing (24a, 24b) having a longitudinal axis (23), the differential housing (24a, 24b) being provided with a plurality of through-holes (25) formed therein; - a differential side gear (18) configured to be connected to a drive shaft (11) capable of being connected to a wheel of a vehicle, the differential side gear (18) being located inside the differential housing (24a) and being rotatably mounted relative to the differential housing (24a) around the longitudinal axis (23); - a blocking system (100) for blocking the differential unit (10) operation, comprising : • a blocking member (30) movable between a released position and a blocking position, and • an actuation system (50) for moving the blocking member (30) between said released and blocking positions.

The invention discloses a protection control method for a differential mechanism of a pure electric vehicle, which relates to the technical field of electric vehicle driving, and comprises the following steps: acquiring wheel speed signals of wheels on two sides of a vehicle driving shaft, and calculating the rotating speed difference of the wheels on two sides; according to the rotating speed difference, a protection torque upper limit value and a protection torque lower limit value under the current rotating speed are determined through a preset rotating speed and protection torque threshold value mapping table; judging whether the motor request torque exceeds the upper limit value or the lower limit value of the protection torque; if the time exceeds the preset activation delay time, activating the differential protection function; and in the state that the differential protection function is activated, the actual output torque is controlled to be between the protection torque upper limit value and the protection torque lower limit value. Abnormal abrasion or impact damage of internal elements of the differential mechanism caused by excessive slip of a single-side wheel can be effectively avoided, so that the service life of the differential mechanism is greatly prolonged, the maintenance cost is reduced, and intense driving control and power requirements are met.

A roller spring member for an overrunning clutch is provided. A first bridge connecting portion couples a bridge to a first spring central location of a first leaf spring. A second bridge connecting portion couples the bridge to a second spring central location of a second leaf. The roller spring member further includes at least one of, each of the first bridge connecting portion and the second bridge connecting portion including an undercut radius section, each of the first leaf spring and the second leaf spring being tapering from an associated one of the first spring central location of the first leaf spring and the second leaf spring central location of the second leaf spring to a first end and a second end, and each of the first leaf spring and the second leaf spring including a straight portion proximate the central locations.

A second gear meshes with a first gear and is connected to an output member so as to rotate integrally with each other. A rotor, a planetary gear mechanism, and the first gear are disposed on a first axis in a described order from an axial first side toward an axial second side. A connecting member, a differential gear mechanism, and the second gear are disposed on a second axis parallel to the first axis in a described order from the axial first side toward the axial second side. The planetary gear mechanism has a smaller diameter than a rotating electric machine and a larger diameter than the first gear. The differential gear mechanism has a smaller diameter than the second gear and larger diameter than the connecting member.

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 case needed to be strong enough to withstand the thrust force acting on the ring gear, which could have led to an increase in the case's size. [Solution] The power transmission device comprises a sun gear fixed to a rotatable shaft, a ring gear coaxially arranged with the sun gear and fixed to a case housing a planetary gear mechanism, planetary gears meshing with the sun gear and the ring gear, and a carrier that rotatably supports the planetary gears, is coaxially arranged with the sun gear, and is rotatably supported relative to the case. The sun gear and the ring gear are each helical gears, and the twist angles of the teeth of the sun gear and the ring gear are set such that the thrust force acting on the sun gear and the thrust force acting on the ring gear are in opposite directions. The device further comprises a load transmission path between the sun gear and the ring gear through which the thrust force acting on the sun gear and the thrust force acting on the ring gear are transmitted, and the load transmission path is configured to include at least a part of the carrier.

A differential module having a first axis of rotation and including a planet carrier, a planet pinion pivotably mounted on the planet carrier, and a first and a second sun gear pivoting about the first axis of rotation. Also included is a first and a second wheel-driving half-shaft, the first wheel-driving half-shaft being rotationally connected to the first sun gear. A sliding sleeve is configured to occupy, selectively, four axial positions for the coupling of the differential module.

A transmission includes a first shaft unit connected to a drive shaft of a drive unit. The first shaft unit includes a first shaft having a first shaft raceway surface on an outer peripheral surface thereof, a first output gear provided on the first shaft, a first outer ring attached to a first support part, the first outer ring having a first outer ring raceway surface on an inner peripheral surface thereof, and a plurality of first rolling elements disposed between the first shaft raceway surface and the first outer ring raceway surface.

The invention discloses a self-locking type automatic differential mechanism and a bidirectional self-locking planetary mechanism, and belongs to the field of vehicle transmission. According to the differential mechanism, two sets of self-locking planetary mechanisms with the same speed ratio and opposite output rotating directions are reversely and symmetrically interlocked and combined. The key point is that the two sun gears are rigidly connected through the interlocking connecting shaft, and the double-sided locking disc is fixed on the shell. By means of the structure, the differential mechanism forms self-locking and interlocking due to an internal gear structure and forms normal locking due to movement contradictions during linear driving, and the differential mechanism is like a rigid whole. Only when the vehicle turns and the left and right half shafts need to reversely rotate oppositely at a constant speed, automatic unlocking is achieved, and differential speed is achieved. External control is not needed in the whole process, seamless and automatic switching between the locking state and the differential state is achieved, and the trafficability and driving safety of the vehicle are greatly improved.

Aspects of the present invention relate to a controller for controlling a differential lock system of a vehicle with a plurality of wheels. The controller comprises one or more processors collectively configured to receive a wheel status information specific to at least two wheels. Further, it is configured to determine, based at least on the wheel status information, a differential lock setpoint, indicating whether a differential lock should be engaged or disengaged. Also, it is configured to output the differential lock setpoint to the differential lock system to control the differential lock system to engage or disengage the differential lock based on the differential lock setpoint. The invention further relates to a differential lock system, an axle assembly, a method and computer readable instructions.

The utility model relates to the field of automobile transmission devices, in particular to a ratchet wheel type automobile differential mechanism lock which comprises a differential mechanism and a half shaft, a ratchet wheel mechanism is arranged on the half shaft, the differential mechanism is provided with a driving piece used for driving the ratchet wheel mechanism, and a gear shifting fork used for moving the position of the ratchet wheel mechanism is further arranged on the half shaft. The ratchet mechanism is used for switching forward or reverse gears, and a speed reduction assembly is arranged between the ratchet mechanism and the driving piece. The driving piece is arranged on the differential mechanism to drive the ratchet wheel mechanisms on the left half shaft and the right half shaft, when one wheel slips, due to the principle of the differential mechanism, the other wheel half shaft stops rotating, pawls in the ratchet wheel mechanisms drive the ratchet wheels to rotate, then the ratchet wheels drive the half shafts to rotate, and a differential mechanism lock does not need to be frequently opened and closed. Therefore, the problem that the differential lock needs to be continuously opened and closed under different road conditions can be solved.

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.

Electromotive assembly comprising a casing (CM), a differential mechanism (DF) and an electric machine (MEL) having a rotor (9) with a rotor shaft (1), the differential mechanism (DF) comprising a planet carrier element (2) rotated by the rotor shaft, pinion gears (23, 24) rotatably mounted on the planet carrier, a first sun gear (21) and a second sun gear (22), a short drive shaft (A1), bearing splines and mounted on the one hand in the first sun gear, and on the other hand in a first primary pinion, a long drive shaft (A2), bearing splines and mounted on the one hand in the second sun gear, and on the other hand in the second primary pinion, wherein the mounting of the rotating parts calls for two bearings (B1, B2) for rotatably mounting the rotor shaft, a bearing (B3) for rotatably mounting the first primary pinion, and a bearing (B4) for rotatably mounting the second primary pinion.

A variety of transmission mechanisms are provided that include split pulleys nested within each other in order to reduce the size of the transmissions, to provide infinitely variable transmission ratios that include forward and reverse ratios, or to provide some other benefits. These transmissions include "W"-shaped belts, having both contact surfaces that are directed outward from the belt and inward, toward a center-line of the belt, to contact the pulleys with respective different inward- and outward-directed contact surfaces. Accordingly, the surfaces at which the belt contacts the different pulleys may be substantially the same with respect to a hinge or other structure of the belt. This improvement may permit higher levels of power transmission, increased efficiency, and increased transmission lifetime. Additionally, variable-eccentricity variable transmissions are provided wherein the eccentricity of rotation of an inner, nested pulley varies with changes in the transmission ratio of the transmission.

Embodiments of the present application provide a control method, system and device of a differential lock in a vehicle, a vehicle and a storage medium, and relate to the technical field of vehicle control. The method comprises: receiving an on-off activation signal from a CTP (Console Touch Panel) or an IHU (Infotainment Head Unit); generating control information according to the on-off activation signal, the control information being used to control the state of the differential lock, the state of the differential lock comprising a locked state and an unlocked state; and controlling the differential lock to be in the locked state or the unlocked state according to the control information. The technical solution provided by the embodiments of the present application can ensure the driving safety of the vehicle after the vehicle is rescued.

Systems are provided for a limited slip differential (LSD). The LSD comprises a two-piece differential case, an intermediate floating piece positioned in an interior of the two-piece differential case and configured to slide axially therein. The LSD, further comprises a first side gear and a second side gear meshed with gears of the intermediate floating piece, a first disc spring mounted on the first side gear and a second disc spring mounted on the second side gear, a first clutch pack mounted on the first side gear and positioned between the first disc spring and a lip of the first side gear, and a second clutch pack mounted on the second side gear and positioned between the second disc spring and a lip of the second side gear, and a shim mounted on the second side gear and positioned axially between the second disc spring and the two-piece differential case.

The utility model relates to a bearing locking structure. The bearing locking structure comprises a shell; a bearing is mounted between the contact surfaces of the bearing seat and the shell; the adjusting nut is installed on the shell and the bearing seat in a threaded connection mode, the adjusting nut is used for axially pressing a bearing installed between the bearing seat and the shell, and a plurality of locking grooves are formed in the end face, facing the outer side, of the adjusting nut; and the locking piece is installed on the shell, a locking convex part is arranged on the locking piece, an included angle is formed between the center line of the locking convex part and the center line of the locking piece, and the locking convex part is arranged in the locking groove to achieve locking of the adjusting nut. According to the bearing locking structure disclosed by the utility model, the angle of the adjusting locking plate is reset to multiply and axially adjust the minimum unit distance under the condition that the adjusting nut of the differential mechanism is not changed, and mainly, the extending end of the adjusting locking plate is made into an asymmetric structure, the locking angle is designed, and the minimum unit distance is multiplied and axially adjusted through positive and negative assembly.

Methods (400, 500) for power transmission, comprising: Setting a clutch torque (612, 712) of a clutch (191) of a differential (193) that drives a first wheel (131) and a second wheel (131), in response to a difference between a braking torque of the second wheel (131) and a braking torque of the first wheel (131); and Setting a regenerative torque of an electric machine (120) in response to the braking torque of the first wheel (131) and the braking torque of the second wheel (131) and the clutch torque (612, 712).

The utility model discloses a differential self-locking mechanism, and relates to the technical field of mechanical transmission, the differential self-locking mechanism comprises a rotating shaft, a driven gear is mounted on the rotating shaft, and one side of the driven gear is engaged with a driving gear; the rotating shaft is provided with an external thread section, and the external thread section is connected with a pressing device used for adjusting the friction force between the driven gears. Wherein the driven gear comprises a first gear body and a second gear body, the first gear body is in sliding fit with the rotating shaft, and the second gear body and the rotating shaft are fixed and rotate synchronously; the modulus of the first gear and the modulus of the second gear are the same, the number of teeth of the first gear is at least one tooth smaller than that of the second gear, the base circle diameter of the first gear and the base circle diameter of the second gear are the same, and the reference circle diameter of the first gear and the reference circle diameter of the second gear are different. The differential self-locking device has the advantages that efficient transmission is kept when the electric actuator works, stability and reliability are improved by the aid of the gear circumference reversing principle in a self-locking state, and differential and high-precision self-locking effects are achieved.

The present invention relates to a carrier structure including a plate-stacked carrier housing, and a reduction gear set and a differential gear set using a planetary gear system are provided in the plate-stacked carrier housing. The carrier structure including the plate-stacked carrier housing according to the present invention can include a plate-stacked carrier for accommodating a reduction gear set and a differential gear set composed of a planetary gear system, an input shaft provided at one side of the carrier to receive power from a motor and formed with a gear at an outer side, the reduction gear set to receive power from the input shaft, the differential gear set to receive power from the reduction gear set, and left and right output shafts provided through the carrier and formed with gears at outer sides to receive power from the differential gear set. The present invention can achieve compactness by providing the reduction gear set and the differential gear set in the carrier, and a reduction ratio can be selected by forming a fixed gear with an internal gear or an external gear.

The invention is related to soft actuators controlled by fluid pressure. The actuators developed with the invention comprise two sacs which provide for the flexion of a structure upon pressurizing this structure that has an anisotropic flexibility, which is provided by different knitted layers. The knitted layers are produced as integrated with each other by means of the three-dimensional whole-garment knitting technique. The actuators according to the invention can be adapted according to the different requirements and produced with standard qualities.

To provide a work vehicle equipped with a hybrid transmission, which adopts high-output motor generators, avoids increase in size of a charging battery, enables the motor generators to be easily maintained, and supplies sufficient electric power to the motor generators which operate as electric motors.SOLUTION: A hybrid transmission 16 has a first motor generator 17 and a second motor generator 18. A first rotary shaft center of the first motor generator 17 and a second rotary shaft center of the second motor generator 18 respectively are disposed along a longitudinal direction of a vehicle body. The first rotary shaft center of the first motor generator 17 and the second rotary shaft center of the second motor generator 18 are arranged in parallel. An input shaft 23 of a mission case 13 passes, in the longitudinal direction of the vehicle body, in a space between the first motor generator 17 and the second motor generator 18.SELECTED DRAWING: Figure 2

The invention relates to an electric drive assembly for driving a motor vehicle, comprising: a housing (8); an electric motor (3) having a motor shaft which is designed as a hollow shaft (10) and can be driven in rotation about an axis of rotation (A); a planetary gear (4); a differential unit (5) having a differential (25), a laminated clutch (41) for adjusting the locking action of the differential, and a controllable ball ramp mechanism (45) for actuating the laminated clutch (41), the side axle gear (7) of the differential (25) having an internal toothing (58) for the insertion of the axle and a laminated carrier section (59) which at least partially have axial overlap; wherein the laminated clutch (41) is arranged in a ball ramp mechanism (45) outside the differential case (19).

The invention relates to a modular building block differential (2) comprising: - a differential cage (10) extending in a longitudinal direction (4), a transverse direction (6) transverse to the longitudinal direction (4), and a vertical direction (8) transverse to the longitudinal direction (4) and transverse to the transverse direction (6), with a cage base (12) extending in the longitudinal direction (4) and the transverse direction (6), from which a first cage wall (14) and a second cage wall (16) extend in the vertical direction (8), spaced apart from each other in the transverse direction (6), and with a cage column (18) extending in the vertical direction (8) and held against the cage walls (14, 16), - a first sun gear (48) placed on the cage base (12), which is configured to drive a first output shaft through the cage base (12), - a planet gear (50) which engages with the first sun gear (48), - a cover (62),which is held on the cage walls (14, 16) opposite the cage floor (12) in the vertical direction (8), and - a second sun gear (48) held between the cage column (18) and the cover (62) and engaged with the planet gear (50), which is arranged to drive a second output shaft through the cover (62), characterized in that the planet gear (50) is rotatably held on a pivot bearing (44) of the cage column (18).

In an assembly in which a motor and a drive shaft are arranged on different shafts, a parking lock mechanism which contributes to miniaturization is realized. The assembly has: a motor; a link shaft connected downstream of the motor; and a parking lock mechanism having a parking gear provided on a shaft that rotates integrally with the rotor of the motor, a parking lever engaged with the parking gear, and a parking actuator that rotates the parking lever. The connecting rod shaft is located on the periphery of the motor. The link shaft and the parking actuator have portions overlapping the motor when viewed from a first orthogonal direction orthogonal to the axial direction of the link shaft. The parking actuator has a portion overlapping the link shaft when viewed from a second orthogonal direction orthogonal to the axial direction and the first orthogonal direction.

The application relates to the technical field of vehicle transmission control, in particular to a control method and device of a differential lock, a vehicle and a computer readable storage medium, the method comprising the following steps: in response to a first instruction for starting the differential lock, an actual temperature of an excitation coil is acquired; a target locking torque of the differential lock is acquired; the target locking torque is matched with a current driving condition of the vehicle; based on the actual temperature and the target locking torque, a first driving current required by the differential lock for generating the target locking torque at the actual temperature is determined; and the differential lock is controlled to be locked based on the first driving current.

Disclosed is an electromotive assembly (GEM) comprising: an electric machine with a wound rotor (9) and a tubular rotor shaft (1) extending from a first axial end (E1) to a second axial end (E2) along a main axis, the rotor shaft comprising excitation tracks (P1, P2) arranged on the rotor shaft at the second end of said rotor shaft; a differential mechanism (DF) arranged at the first end of the rotor shaft, the differential mechanism comprising a planet carrier element (2) driven by the rotor shaft and rotating at the same speed as the rotor shaft, at least two pinion gears (23, 25) carried on the planet carrier element, and sun gears (21, 22) meshing with the pinion gears; a first, short auxiliary shaft (A1), linked to the first sun gear (21), and a second, long auxiliary shaft (A2), linked to the second sun gear (22); a first reduction gear (R1) driven by the short auxiliary shaft, and a second reduction gear (R2), driven by the long auxiliary shaft.

Transmission system for a motor vehicle includes a differential drive device configured to distribute a torque to two wheel shafts of an axle, and which includes a coupling device having a coupled position in which the transmission of the torque via the differential drive device is provided and a decoupled position in which the transmission of the torque via the differential drive device is interrupted. The coupling device includes an actuator including a piston guided in axial translation between a retracted position and an extended position; and a thrust bearing which is inserted between the piston and a first coupling part of the coupling device so as to transmit an actuating force of the piston to the first coupling portion and to move the first coupling portion from the uncoupled position to the coupled position during the movement of the piston from the retracted position to the extended position.