Byd Company Limited

Feiyue Xie

Heping Ling

Hua Pan

Jicheng Li

Yubo Lian

Changjiu Liu

Lijun Zhang

Lei Yan

Yuxin Zhang

Yihao Zheng

Ning Yang

Lei Hu

Ri Huang

Ye Lei

Sijia Zheng

An energy conversion apparatus and a vehicle are provided. The energy conversion apparatus includes a motor coil of a motor (), a bridge arm converter (), a bus capacitor () connected to the bridge arm converter () in parallel, and a controller () connected to the bridge arm converter (). When the energy conversion apparatus is connected to an external power supply, according to to-be-driven power of the motor and to-be-charged power of an external battery (), the controller () controls the bridge arm converter () to cause electrical energy of the external power supply to flow to a drive-charging circuit, and adjusts a current of the drive-charging circuit, to cause the external power supply to drive the motor to output drive power and charge the external battery () at the same time.

Energy conversion apparatus and vehicle

An energy conversion device is provided. The device includes: a reversible pulse width modulation (PWM) rectifier () and a motor coil (), where the motor coil () includes at least a first winding unit and a second winding unit, and the first winding unit and the second winding unit are both connected with the reversible PWM rectifier (). The first winding unit is connected with at least one of neutral lines in the second winding unit, where at least one neutral line of at least one of the winding units is connected with a first end of a first direct current (DC) charging and discharging port (), the reversible PWM rectifier () is connected with a first end of a external battery () and a second end of the external battery () respectively, and a second end of the first DC charging and discharging port () is connected with the second end of the external battery ().

Energy conversion device and vehicle

A motor drive apparatus includes a three-phase inverter and a three-phase motor. A first terminal of the three-phase inverter is connected to a positive electrode of a power battery. A second terminal of the three-phase inverter is connected to a negative electrode of the power battery Three phase coils of the three-phase motor are respectively connected to midpoints of three phase legs of the three-phase inverter. The motor drive apparatus is configured to simultaneously control (i) a process of charging the power battery by a power supply module, (ii) a torque of the three-phase motor at a zero output, and (iii) the three-phase inverter and the three-phase motor to heat a heat exchange medium flowing through at least one of the three-phase inverter or the three-phase motor.

Electric motor driving apparatus, control method, vehicle, and readable storage medium

The disclosure provides a motor and an energy conversion device. The motor includes a motor coil having x sets of windings. A number of phases of the x sets of windings is m. In each of the x sets of windings, each phase winding includes ncoil branches. A first end of each of the ncoil branches is connected with a first end of a coil branch separated from the coil branch by an electrical angle of 360 degrees, to form mphase endpoints. A second end of each of the ncoil branches of each phase winding is connected with a second end of a coil branch separated from the coil branch by an electrical angle of P*(360*k+360/m) degrees to form nneutral points, n≥m≥2, n≥3, p=±1, 1≤k≤(n−1), and m, n, and kare integers.

Motor and energy conversion device thereof

The present disclosure relates to the technical field of vehicles, and provides a vehicle and an energy conversion device and a control method therefor. The energy conversion device includes a motor controller, a bus capacitor, a first switch module, a motor, and a second switch module. By controlling the first switch module and the second switch module to be turned on/off, a motor driving circuit can be formed by a battery pack, the first switch module, the bus capacitor, the motor controller, and the motor, and a charging and discharging circuit can be formed by the battery pack, the second switch module, the motor, the motor controller, and the bus capacitor.

Vehicle, energy conversion device and control method thereof

The present disclosure relates to a battery energy processing device and method and a vehicle. The battery energy processing device includes: a bridge arm converter, having a first bus terminal connected with a positive electrode of a battery and a second bus terminal connected with a negative electrode of the battery; a motor winding, having a first end connected with a midpoint of the bridge arm converter; an energy storage device, respectively connected with a second end of the motor winding and the second bus terminal; and a controller, configured to control, in a first preset state, the bridge arm converter to charge and discharge the battery, so as to realize heating of the battery. In this way, the charging and discharging of the battery can be controlled, and internal resistance of the battery causes the battery to generate a large amount of heat, which causes a temperature rise of the battery, thereby realizing the heating of the battery.

Battery energy processing device and method, and vehicle

The present disclosure discloses a motor drive apparatus, a method for controlling the same, a vehicle, and a readable storage medium, where the control method includes: obtaining a required heating power and a required charging power; and adjusting a current value and direction of each phase current of a three-phase motor based on the required heating power, the required charging power, and an output of the motor at a zero torque, to simultaneously control a process of charging a power battery by a power supply module, the torque of the three-phase motor at a zero output, and a three-phase inverter and the three-phase motor to heat a heat exchange medium flowing through at least one of the three-phase inverter or the three-phase motor.

Motor drive apparatus, method for controlling the same, vehicle, and readable storage medium

An energy conversion device is provided. The energy conversion device includes a reversible pulse-width modulation (PWM) rectifier () and a motor coil (). The motor coil () includes L sets of winding units, and each set of winding unit is connected with the reversible PWM rectifier (), where L≥2 and is a positive integer. At least two sets of heating circuits of a to-be-heated device are formed by an external power supply (), the reversible PWM rectifier (), and the winding units in the motor coil (). The energy conversion device controls the reversible PWM rectifier () according to a control signal, so that a current outputted from the external power supply () flows through at least two sets of winding units in the motor coil () to generate heat.

The present invention relates to the technical field of vehicles, and provides an energy conversion device and a vehicle. The energy conversion device includes a reversible pulse-width modulation (PWM) rectifier, a motor coil connected with the reversible PWM rectifier, a one-way conduction module, and a capacitor. A DC charging circuit or a DC discharging circuit is formed by an external DC port with an external battery by using the energy conversion device, and a driving circuit is formed by the external battery with the reversible PWM rectifier and the motor coil in the energy conversion device. The one-way conduction module is connected between a first end of the capacitor and a second end of the external DC port, or the one-way conduction module is connected between a second end of the capacitor and a first end of the external DC port.

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Shenzhen, China

Feiyue Xie