A control apparatus for a transmission including a gear engagement commander outputting a gear engagement command of a sleeve, an actuator controller controlling an actuator to move the sleeve from a neutral position to a gear engaging position when the gear engagement command is output, a gear engagement determiner determining whether an engagement of the sleeve is prevented in a course of moving the sleeve from the neutral position to the gear engaging position; and a motor controlling an electric motor to rotate a rotating shaft so as to change a rotational position of movable dog teeth relative to passive dog teeth when it is determined that the engagement of the sleeve is prevented.

A power train for a hybrid vehicle may include a first transmission mechanism receiving a selective input of a power of an engine, and gear-shifting and transferring the power provided from the engine to a drive shaft through selection of engine-side gear mates that meet a traveling speed among a plurality of engine-side gear mates through a first control device, and a second transmission mechanism receiving an input of a power of a motor, and gear-shifting and transferring the powers provided from the engine and the motor to the drive shaft through selection of a motor-side gear mates that meet a traveling mode or the traveling speed among a plurality of motor-side gear mates through a second control device, wherein the second control device of the second transmission mechanism maintains one of the motor-side gear mates in a normally connected state to the drive shaft during traveling of the vehicle.

A power train for a hybrid vehicle may include a first transmission mechanism receiving a selective input of a power of an engine, and gear-shifting and transferring the power provided from the engine to a drive shaft through selection of engine-side gear mates that meet a traveling speed among a plurality of engine-side gear mates through a first control device, and a second transmission mechanism receiving an input of a power of a motor, and gear-shifting and transferring the powers provided from the engine and the motor to the drive shaft through selection of a motor-side gear mates that meet a traveling mode or the traveling speed among a plurality of motor-side gear mates through a second control device, wherein the second control device of the second transmission mechanism maintains one of the motor-side gear mates in a normally connected state to the drive shaft during traveling of the vehicle.

The present disclosure relates to a shift control apparatus of a vehicle and its method. In particular, the shift control apparatus includes: a transmission including a first clutch and a second clutch; a torque source to generate power for driving a vehicle; a data detector to detect a vehicle state data; and a vehicle controller to connect a current stage synchronizer to a next stage driving gear if the vehicle state data satisfy a shift condition, release the first clutch to be connected to the driving gear of a current stage, perform a speed control of a torque source while maintaining the second clutch connected to the driving gear of the next stage in a slip state, and release the second clutch and connect the first clutch if the vehicle stage data satisfy a speed control completion condition to complete a shift to a target stage.

The present disclosure relates to a shift control apparatus of a vehicle and its method. In particular, the shift control apparatus includes: a transmission including a first clutch and a second clutch; a torque source to generate power for driving a vehicle; a data detector to detect a vehicle state data; and a vehicle controller to connect a current stage synchronizer to a next stage driving gear if the vehicle state data satisfy a shift condition, release the first clutch to be connected to the driving gear of a current stage, perform a speed control of a torque source while maintaining the second clutch connected to the driving gear of the next stage in a slip state, and release the second clutch and connect the first clutch if the vehicle stage data satisfy a speed control completion condition to complete a shift to a target stage.

A powertrain for a hybrid vehicle includes a first propulsion unit for powering the vehicle, a second propulsion unit for powering the vehicle, a Dual Clutch Transmission (DCT), and the second propulsion unit the ECU is programmed to control the gear shift such that when a gear shift of the first propulsion unit is made in order to change the overall gear ratio from the first input shaft to the output shaft by changing the double clutch engagement from the second clutch, engaging the second power path, to the first clutch, engaging the first power path, the power connection between the second propulsion unit and the second power path is maintained.

A powertrain for a hybrid vehicle includes a first propulsion unit for powering the vehicle, a second propulsion unit for powering the vehicle, a Dual Clutch Transmission (DCT), and the second propulsion unit the ECU is programmed to control the gear shift such that when a gear shift of the first propulsion unit is made in order to change the overall gear ratio from the first input shaft to the output shaft by changing the double clutch engagement from the second clutch, engaging the second power path, to the first clutch, engaging the first power path, the power connection between the second propulsion unit and the second power path is maintained.

A transmission for a vehicle includes a first input shaft installed to receive power from an engine, a second input shaft concentrically disposed with the first input shaft and installed to receive power from a motor, an output shaft disposed in parallel with the first input shaft and the second input shaft, a first synchronizer provided at the first input shaft to selectively connect the first input shaft and the second input shaft, a first stage driving gear and a second stage driving gear provided at the second input shaft, a first stage driven gear and a second stage driven gear disposed at the output shaft to be freely rotated and meshed with the first stage driving gear and the second stage driving gear, respectively, to form a first stage shift ratio and a second stage shift ratio, and a second synchronizer installed to selectively connect any one of the first stage driven gear and the second stage driven gear with the output shaft.

In a rough terrain vehicle, at a time of preparing to start movement, in a case that a left paddle switch and a right paddle switch are operated together with an accelerator pedal, an ECU disengages a clutch of an automatic transmission, and causes an output of an engine to increase. On the other hand, at a time of starting movement, in a case that the left paddle switch and the right paddle switch are returned to their initial positions, the ECU engages the clutch and transmits the output of the engine from the engine to vehicle wheels via the automatic transmission, to thereby rapidly start movement of the rough terrain vehicle.

A transmission changes gears in a MT system, an AT system, and an AMT system wherein unintended transition between an AT mode and a MT mode or between an AMT mode and a MT mode is prevented. A selector in a controller performs a mode selection control such that, when performing transition between the AT mode and the MT mode or between the AMT mode and the MT mode, the driver at least has to operate a mode switching switch while operating a clutch lever in an operation amount not smaller than a predetermined threshold.