A method may include distributing target torque to target engine torque of an engine and target motor torque of a motor according to a predetermined control logic according to driver demand torque, comparing torques which determines whether actual torques of the engine and the motor are smaller than the target engine torque and the target motor torque, comparing whether a time period during which a state where a state where the torque of the engine or the motor is insufficient is maintained is a predetermined reference time or more, determining that any one of the engine and the motor is failed, when the time during which a state where the state where the torque of the engine or the motor is insufficient is maintained is the reference time or more, and controlling limp-home which limits the target engine torque of the engine, the target motor torque of the motor, and the regenerative braking amount of the motor.

A method may include distributing target torque to target engine torque of an engine and target motor torque of a motor according to a predetermined control logic according to driver demand torque, comparing torques which determines whether actual torques of the engine and the motor are smaller than the target engine torque and the target motor torque, comparing whether a time period during which a state where a state where the torque of the engine or the motor is insufficient is maintained is a predetermined reference time or more, determining that any one of the engine and the motor is failed, when the time during which a state where the state where the torque of the engine or the motor is insufficient is maintained is the reference time or more, and controlling limp-home which limits the target engine torque of the engine, the target motor torque of the motor, and the regenerative braking amount of the motor.

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.

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.

The braking force control device detects an impossible state where one or some of the actuators are temporarily unable to generate a negative driving force, and a predictive state where one or some of the actuators are predicted to become unable to generate a negative driving force. Every time the coasting state occurs before establishment of the impossible state and after establishment of the predictive state, the braking force control device gradually increases the negative driving force generated by the corresponding one or ones of the actuators. Even when the coasting state occurs in the impossible state, the braking force control device does not cause the corresponding one or ones of the actuators to generate a driving force. Every time the coasting state occurs after the impossible state, the braking force control device gradually decreases the negative driving force generated by the corresponding one or ones of the actuators.

Disclosed are a hybrid electric vehicle and an engine control method therefor that are capable of reducing entry of an engine into a full-load drive mode. The method includes determining whether the extent of depression of an accelerator pedal (APS) may be equal to or greater than a reference value set as a condition for entry of an engine into a full-load drive mode, determining a part-load torque corresponding to the maximum torque in a part-load drive mode of the engine and a motor torque corresponding to the maximum torque of a motor when the extent of depression of the accelerator pedal may be equal to or greater than the reference value, comparing the sum of the part-load torque and the motor torque with a driver demand torque, and controlling the engine in the full-load drive mode or the part-load drive mode depending on a result of the comparing.

An object of the present invention is to realize a control device having operation continuity at the time of failure with less redundancy and reduce cost.

Provided is a vehicle control system including a transmission unit that transmits energy to a driving wheel, a first control unit that controls the transmission unit, a first source that inputs energy to the transmission unit, a second source that inputs energy to the transmission unit, a second control unit that controls the first source, and a third control unit that controls the second source, wherein when the first control unit fails, the second control unit or the third control unit controls the transmission unit.

An embodiment driving distribution apparatus of a drone unit includes a first drone unit located on a first end of a vehicle and a second drone unit located on a second end of the vehicle, wherein each of the first and second drone units includes a sensor unit configured to measure a gradient traveling environment of the vehicle, a driving unit configured to apply a driving force of the vehicle, and a control unit configured to control driving amounts of the first drone unit and the second drone unit based on the gradient traveling environment of the vehicle.

An embodiment driving distribution apparatus of a drone unit includes a first drone unit located on a first end of a vehicle and a second drone unit located on a second end of the vehicle, wherein each of the first and second drone units includes a sensor unit configured to measure a gradient traveling environment of the vehicle, a driving unit configured to apply a driving force of the vehicle, and a control unit configured to control driving amounts of the first drone unit and the second drone unit based on the gradient traveling environment of the vehicle.

Methods and systems for operating an electric vehicle in neutral are provided herein. The vehicle system, in one example, includes an electric machine rotationally coupled to a driveline and an input device with a neutral position. The system further includes a control unit with instructions that when executed, in response to movement of the input device into the neutral position, cause the control unit to operate the electric machine to apply a regenerative torque to a driveline and generate electrical energy.