Embodiments of the invention relate to a method for driving an ego vehicle in a defined speed range, wherein the ego vehicle has at least one drive unit, and for the at least one drive unit there is provided a characteristic curve specific to the drive unit for a speed-dependent maximum torque, wherein for the at least one drive unit of the ego vehicle a performance-specific characteristic curve depending on the characteristic performance class of the ego vehicle is established for a speed-dependent performance-specific characteristic torque which is less than the maximum torque, and a supplemental torque is established for the ego vehicle when driving in the defined speed range of the ego vehicle in addition to the performance-specific characteristic torque.

A method and system for shifting a transmission that includes one or more mechanical clutches without clutch plates is described. In one example, a torque output of an electric machine is adjusted in response to a request to shift a transmission so that forces that hold the mechanical clutch in an engaged position may be reduced.

Systems and methods for operating a hybrid vehicle are described. In one example, the automatic engine stopping may be inhibited so that an engine may be restarted during change of mind conditions without generating a large driveline torque disturbance. The engine stopping may be inhibited based on a inhibit engine pull-down torque threshold.

A control device for a vehicle is provided, which includes a power source that generates torque for driving or braking the vehicle, an accelerator pedal sensor that detects an operating amount of an accelerator pedal, and a control unit that controls the power source. The control unit sets a target acceleration based on the accelerator pedal operating amount detected by the accelerator pedal sensor. The control unit sets a target jerk based on the target acceleration, and when the target acceleration increases toward 0 from a value below 0, sets the target jerk so that the target jerk becomes smaller as the target acceleration approaches 0. The control unit sets torque to be outputted or regenerated by the power source, based on the target acceleration and the target jerk.

Provided are a motor-driven vehicle capable of releasing restrictions on operating conditions and having good acceleration, regeneration, and slope climbing abilities, and a control method thereof. A motor-driven vehicle includes: an electric motor; a continuously variable transmission provided between the electric motor and a drive wheel; and a control part that executes a torque control of the electric motor and a shift control of the continuously variable transmission. The control part has a control area for the shift control in which an output torque of the continuously variable transmission at the time of a peak torque of the electric motor and the output torque of the continuously variable transmission at the time of a rated torque of the electric motor are substantially equal.

A method of controlling uphill driving of a hybrid vehicle provided with a dual clutch transmission (DCT) may include determining, by a controller, a driving state of a vehicle on the basis of information collected from the vehicle; when the vehicle is determined as being in a uphill driving state, performing, by the controller, high torque control on an engine of the vehicle by increasing an engine torque to control the engine at a predetermined high torque engine operating point and reducing a motor torque of a motor in the vehicle to satisfy a driver request torque; and during the performing of the high torque control on the engine, comparing, by the controller, a state of charge (SOC) value of a battery with a set first SOC threshold value, and when the SOC value of the battery is less than or equal to the first SOC threshold value, performing engine and motor speed control to defend the SOC value of the battery.

A control system for a hybrid vehicle that reduces a change in an engine torque when warming a catalyst. The hybrid vehicle comprises a catalyst that purifies exhaust gas, a first motor, a differential mechanism having a plurality of rotary elements, and an engagement device that selectively connects the first motor to an engine. A controller is configured to determine whether it is necessary to warm the catalyst, and disengage the engagement device while retarding an ignition timing of the engine when it is necessary to warm the purifying device.

Methods and systems are provided for torque application during a deceleration event initiated via a shift lever direction change request. In one example, adjusting a deceleration torque towards a traction torque of a going to direction at a vehicle standstill based on an actual vehicle speed and an accelerator pedal position when the actual vehicle speed is below a threshold vehicle speed and a shift lever position is adjusted from a forward position to a reverse position.

A controller as a control apparatus for a hybrid vehicle determines whether or not to perform switching from a first traveling mode in which a hybrid vehicle is caused to travel using torque of a motor without using torque of an engine to a second traveling mode in which the hybrid vehicle is caused to travel using at least the torque of the engine. The controller, when determining that switching is to be performed from the first traveling mode to the second traveling mode, performs control to reduce output torque of the motor by a predetermined amount. After this control, the controller shifts a first clutch from a released state to an engaged state so that the torque of the motor is transmitted to the engine via the first clutch, and cranks the engine using the motor to start the engine.

A hybrid electric vehicle and a method for compensating a motor torque thereof, may include a hybrid control unit (HCU) including a processor and a non-transitory storage medium containing instructions executed by the processor. The processor is configured to start motor torque intervention upon entering a predetermined shift phase during shifting, to determine a motor torque compensation amount by reflecting engine torque according to engine torque reduction control, and to perform motor torque compensation control based on the motor torque compensation amount.