A charging control apparatus includes: a prediction unit configured to predict a change in temperature of a battery over time during charging; a calculation unit configured to calculate, based on the change in temperature over time predicted by the prediction unit, a degree of influence that the battery receives from the temperature of the battery exceeding a predetermined upper-limit temperature control value; and a charging control unit configured to allow the temperature of the battery to exceed the upper-limit temperature and charge the battery when the degree of influence is less than a predetermined reference value.

A charging control apparatus includes: a prediction unit configured to predict a change in temperature of a battery over time during charging; a calculation unit configured to calculate, based on the change in temperature over time predicted by the prediction unit, a degree of influence that the battery receives from the temperature of the battery exceeding a predetermined upper-limit temperature control value; and a charging control unit configured to allow the temperature of the battery to exceed the upper-limit temperature and charge the battery when the degree of influence is less than a predetermined reference value.

This disclosure relates to an electrified vehicle configured to power limit a battery based on a thermal exchange capacity, and a corresponding method. In particular, an example electrified vehicle includes a battery, a thermal management system configured to circulate thermal exchange fluid relative to the battery, and a controller configured to power limit the battery based on a thermal exchange capacity of the thermal exchange fluid.

An embodiment method of controlling traveling of an electrified vehicle equipped with an electric motor as a power source includes determining whether it is possible to enter a variable control function. The variable control function includes a function of variably controlling a coasting torque level using a regenerative braking force. In response to a determination that it is not possible to enter the variable control function, a cause of an inability to enter the variable control function is determined and control is performed in a manner that corresponds to a determination that it is possible to enter the variable control function or the determination of the cause of the inability to enter the variable control function in response to the determination that it is not possible to enter the variable control function.

Disclosed is a traction battery self-heating control method and a device. Acquiring a second temperature of a rotor at a current sampling time according to system parameters and a first temperature of the rotor at a previous sampling time, and estimating a third temperature of the rotor at a next sampling time according to the first temperature and the second temperature, and stopping the self-heating of the traction battery when the third temperature reaches a demagnetization temperature of the rotor. Whether to stop the self-heating of the traction battery is determined by estimating a rotor temperature under the self-heating condition, and comparing the rotor temperature with the demagnetization temperature of the rotor, and thus the self-heating control of the traction battery is realized.

An electric motor, a power system, a control method, and an electric vehicle. The electric motor comprises a first N-phase winding set and a second N-phase winding set, wherein the first N-phase winding set and the second N-phase winding set are both used for being connected to a traction battery by means of a conversion module. When the traction battery starts to be heated, the first N-phase winding set and the second N-phase winding set are powered on. The direction of a magnetic field generated by the first winding set and the direction of a magnetic field generated by the second winding set have a phase difference, such that the magnetic fields counteract each other; and a magnetic field intensity in a stator winding of each phase is reduced, and an air-gap magnetic flux is also reduced, thereby alleviating the problems of electric motor heating and electric motor NVH.

A vehicle may include an engine, a traction battery, an electric motor, an electric cooling system, and a controller. The electric motor selectively converts torque from the engine to electric power and converts electric power from the traction battery to drive torque for the vehicle. The electric cooling system, responsive to a temperature of the traction battery exceeding a first threshold, cools the traction battery using the electric power. The controller, responsive to the temperature exceeding a second threshold less than the first threshold and accessory loads exceeding a third threshold, operates one or both of the engine and traction battery to maintain the temperature below the first threshold.

A power battery heating method for an electric vehicle includes: acquiring a heating power demand of a power battery; acquiring power demand information of a driving module of the electric vehicle in real time, and determining a current heating power of the power battery according to the power demand information; acquiring a compensating heating current according to the heating power demand and the current heating power when the current heating power is less than the heating power demand; causing the motor controller to regulate a control current of the driving motor according to the compensating heating current, so that the driving motor outputs a high-frequency oscillation current equal to the compensating heating current; and causing the power battery to perform self-heating according to the high-frequency oscillation current outputted by the driving motor.

An electrified tractor includes a vehicle body, an electric motor, a battery, an inverter configured to control input-output electric power of the battery, a wheel for traveling, and a control device. On condition that the electrified tractor travels inside a restriction area determined in advance as one condition, the control device controls the inverter such that the input-output electric power of the battery falls within a specific electric power range determined in advance. The control device determines whether or not there is a possibility that the electrified tractor moves from the restriction area to outside the restriction area. In a case where an affirmative determination is made in a determination process during a restriction process, the control device expands the specific electric power range as compared with a case where a negative determination is made in the determination process.

The present invention generally relates to a self-charging system for electric vehicles comprises at least one gearbox comprises an input end and an output end mechanically coupled to one of the wheels of a vehicle to the input end to generate a rotational energy with an increased output of one of the torque or speed (RPM) to the output end; an auxiliary generator connected to the output end of the at least one gearbox to convert the rotational energy into electrical energy; a controller equipped with a maximum power point tracker to produce maximum power output; and a charger controller coupled to the maximum power point tracker to charge a batter of the vehicle upon limiting electric current rate of the power output to protect against electrical overload, overcharging, and overvoltage.