Abstract: A vehicle transmission using a gearset. Multi-mode clutches selectively couple components of the gearset. The transmission operates in and shifts between a first forward gear and a second forward gear using a change in input rotation. An electric motor coupled to the input may be used to change the input rotation direction.

Abstract: A motor control method of a bistable gear shifter, comprising: determining a current required gear according to a position of a shift lever and a gear judgment strategy; determining whether the current required gear is a P gear, an R gear or an N gear; further determining whether the shift lever is in a second steady state position if it is determined that the current required gear is the P gear, the R gear or the N gear; determining whether a deviation of the position of the shift lever from the second steady state position is greater than or equal to a preset angle value, if it is determined that the shift lever is in the second steady state position; and determining a target angle of the motor as a target opening angle, if it is determined that the deviation is greater than or equal to a preset angle value.

Abstract: A vehicle includes a brake-by-wire system having a brake pedal and a first sensor configured to output a signal indicative of a position of the brake pedal. A controller is in communication with the sensor and is programmed to enable and disable a one-pedal driving mode based on a user-selected setting. The controller is further programmed to, in response to the signal of the first sensor being valid and the one-pedal driving mode being disabled, enable the one-pedal driving mode regardless of the user-selected setting.

Abstract: A vehicle control device for controlling platooning of platoon participating vehicles by connecting the platoon participating vehicles to one another via radio communication, the platoon participating vehicles include a lead vehicle and follow-up vehicles that perform automatic follow-up running in line at a predetermined intervehicle distance from the lead vehicle, the device comprises a control portion that, during execution of the platooning, sets a permissible output range of a drive amount with a current gear ratio of an automatic transmission remaining kept, as a change characteristic of the drive amount in each of the platoon participating vehicles so that change of the drive amount in response to change of a drive demand amount lies within a predetermined range, the automatic transmission being included in each of the platoon participating vehicles to transmit power of a power source to driving wheels.

Abstract: A coupling device for coupling two components in a torque-conducting manner including a first coupling component having a first external toothing and a second coupling component having a second external toothing. In addition, the coupling device has a sliding sleeve having an internal toothing which is permanently engaged with the first external toothing and can be selectively brought into engagement with the second external toothing. Furthermore, a locking unit is provided which can selectively assume a locking state in which the sliding sleeve is held in a form-fitting manner in a rotationally coupled state. In addition, the locking unit can selectively assume an unlocking state.

Abstract: A hybrid power system comprises an engine, a motor, an electromagnetic clutch, an electromagnetic clutch controller and a power supply system. The power supply system comprises: a low-voltage battery, a standby power supply system and a switching circuit. The electromagnetic clutch is used to control connection of the motor. A control method comprises: monitoring whether a voltage of the low-voltage battery is lower than a target value, and judging whether the low-voltage battery fails; using the switching circuit to switch to the standby power supply system to supply power to the electromagnetic clutch and the electromagnetic clutch controller; using the electromagnetic clutch controller to judge an engaged or disengaged state of the electromagnetic clutch; and further controlling the electromagnetic clutch according to the engaged or disengaged state. When the low-voltage battery power supply fails, the switching circuit switches to the standby power supply system to supply power.

Abstract: A power transmission device having: a case formed by assembling a first case member and a second case member; and a shaft member supported by the case, the power transmission device comprising: a protrusion provided to the first case member and protruding in the axial direction along to the direction of assembling the case; and a recess provided to the second case member and recessed in the axial direction. The shaft member is supported by the protrusion in the recess.

Abstract: A transmission structure of a hub motor has a hub shell, an axle, a motor unit, and a clutch assembly. The clutch assembly connects with the hub shell and the motor unit, and includes a driving ring, an output disc, a fixing base, a clutch disc, and a pressing ring. The motor unit drives the driving ring to rotate. The output disc is capable of driving the hub shell to rotate. The driving ring drives the clutch disc to rotate and further drives the pressing ring; the pressing ring then pushes the clutch disc to contact the output disc and further drives the output disc to rotate. The fixing base is magnetic and is disposed between the output disc and the motor unit. The clutch disc is magnetically attractable such that the clutch disc separates from the output disc when the motor unit stops working to prevent the motor unit from providing resistance.

Abstract: A transmission control system of an electric vehicle includes a motor configured to generate drive torque; a transmission configured to perform multi-stage shifting using a dog clutch in a restraint relationship with a one-way clutch configured to transmit forward power of the motor; a speed sensor configured to measure a rotation speed on an output side of the transmission; a motor control unit configured to control the drive torque from the motor according to a driver's accelerator position signal (APS) value; and a vehicle control unit configured to control the multi-stage shifting of the transmission according to a torque command based on the APS value, and to perform clutch alignment control by moving up a sleeve in a reverse direction to contact a hub through a reverse rotation operation of gear teeth by applying reverse rotation torque of predetermined drive force through the motor in a pre-engagement state of the dog clutch.

Abstract: In a bevel gear pair, a first gear and a second gear are applied with tooth top modification, and a ratio of a distance from a pitch circle to a starting position of the tooth top modification to a distance from the pitch circle to a tooth top in the first gear is larger than a ratio of a distance from a pitch circle to a starting position of the tooth top modification to a distance from a pitch circle to a tooth top in the second gear. Thus, the bevel gear pair that can achieve smooth meshing is provided.

Abstract: A one-way clutch includes a C-shaped spring having one end thereof engaged by the inner ring and the other end abutting a roller at one end of a row of rollers that abut each other, thereby engaging the rollers with the outer ring and the inner ring. The inner ring has a radius at the engaging end of the cam surface opposed to the roller at the other end of the row of the rollers larger than its radii at the engaging ends of the cam surfaces opposed to the other rollers of the same row.

Abstract: [PROBLEMS] To reduce a sense of discomfort given to a driver due to vehicle deceleration caused by a downshift that is not intended by the driver, which is caused by a failure of a rotation speed sensor or the like. [SOLUTIONS] An automatic transmission includes: a transmission mechanism configured to shift rotation of a driving source and transmit the rotation to a driving wheel; and a clutch configured to control transmission of a torque from the driving source to the driving wheel, wherein when a change rate of a rotation speed of the driving source is equal to or higher than a predetermined change rate, a torque transmission capacity of the clutch is reduced.

Abstract: A system for controlling a clutch is provided with: a thrust member movable between a first position for disconnecting the clutch and a second position for connecting the clutch; a solenoid generating a magnetic flux in response to input of electric power; a movable element drivingly coupled with the thrust member and set into motion by the magnetic flux to drive the thrust member between the first position and the second position; an electric circuit configured to add alternating-current power to the electric power and apply the electric power with the alternating-current power to the solenoid; and a controller configured to detect a phase difference of an electric current relative to an electric voltage in the alternating-current power added to the electric power and compare the detected phase difference with a reference value to determine whether the thrust member is at the first position or at the second position.

Abstract: An inner drum that includes a coupling part having an external surface and an internal surface, wherein the internal surface contains splines. An annular trough is engaged to the exterior surface of the coupling part. A circular wall contains a plurality of appendages extending upward from the circular wall. At least one slot is disposed within the appendages for receiving a snap ring.

Abstract: A clutch for a rotary shaft includes an annular pressure chamber with a sleeve surface engaging a surface to drivingly connect the shaft to the clutch, and further includes a trigger device and a channel system activatable by the trigger device upon a relative angular movement between the shaft and the chamber to release the shaft from the housing. The trigger device has a cam wheel having a constant first radius across a first angular interval and a second, smaller, radius across a second angular interval. The cam wheel is supported on an envelope surface within the first angular interval and rotating in relation to the envelope surface when the shaft rotates in relation to the housing. When a contact point reaches the second angular interval, the cam wheel is displaced to activate said channel system.

Abstract: A clutch actuating device includes an actuating cylinder having a piston, a multiplier cylinder, and at least one rod extending from the multiplier cylinder to the piston of the actuating cylinder. The actuating cylinder has a rod-side chamber and a clutch actuation chamber with the piston extending therebetween. The rod-side chamber has a port for connection to a first pressure source, and the clutch actuation chamber has a port for connection to a slave cylinder of a hydraulic clutch. A passage interconnects the rod-side chamber with the clutch actuation chamber, and a check-valve is located in the passage. The check-valve only permits flow between the rod-side chamber and the clutch actuation chamber for purposes of compensating for changes of volume of fluid due to temperature change and only when the piston is retracted to an idle position.

Abstract: A control device for a power machine includes a target circuit pressure specifying unit configured to specify a target circuit pressure of the hydrostatic continuously variable transmission, a measurement value acquisition unit configured to acquire an actual circuit pressure of the hydrostatic continuously variable transmission, a brake torque determination unit configured to determine a brake torque based on the target circuit pressure and the actual circuit pressure, and a pump control unit configured to control the hydraulic pump based on the brake torque. The brake torque is a torque consumed by the hydraulic pump.

Abstract: Gearboxes for aircraft gas turbine engines, in particular to arrangements for journal bearings such gearboxes, and to related methods of operating such gearboxes and gas turbine engines. Example embodiments include a gearbox for an aircraft gas turbine engine, the gearbox including: a sun gear; a plurality of planet gears surrounding and engaged with the sun gear; and a ring gear surrounding and engaged with the plurality of planet gears, each of the plurality of planet gears being rotatably mounted around a pin of a planet gear carrier with a journal bearing having an internal sliding surface on the planet gear and an external sliding surface on the pin.

Abstract: A pulley unit has a hub configured to be connected to a crankshaft, a pulley coaxial to the hub and supported in a rotationally free manner with respect thereto, a clutch interposed between the hub and the pulley, and an actuator for controlling the clutch, The clutch has an inner disc rotationally coupled to the hub and an engagement portion housed inside the pulley, a mobile member axially movable between an engagement position in which the mobile member rotationally couples the pulley to the engagement portion of the inner disc and a disengagement position in which the pulley is rotationally free with respect to the inner disc, and an elastic element acting on the mobile member to push it towards the engagement position.

Abstract: A roller freewheel includes a roll body cage, a plurality of roll bodies accommodated in the roll body cage, and a ramp ring having a ramp contour. The ramp contour blocks the roll bodies in a first direction of rotation and allows rotation of the roll bodies relative to the ramp ring in a second direction of rotation, opposite the first direction of rotation. The ramp contour is designed to accommodate a plurality of roll body rows. The roll body cage includes a plurality of separate partial cages, with each partial cage including at least one roll body row.