Abstract: A device and method for heating a battery are provided. The device is provided on a first power-consuming device and includes: a first interface electrically coupled to a neutral point of a motor winding of the first power-consuming device; a second interface electrically coupled to a negative electrode of a battery of the first power-consuming device; and a control module coupled to a control system of the first power-consuming device and a control system of a second power-consuming device to coordinate and control the first power-consuming device and the second power-consuming device. The first interface is engageable with a third interface electrically coupled to a neutral point of a motor winding of the second power-consuming device. The second interface is engageable with a fourth interface electrically coupled to a negative electrode of a battery of the second power-consuming device. The control module is configured to perform a battery heating step.

Abstract: An electrical apparatus and a method for controlling heating thereof are disclosed. Before detecting a mobile electrical apparatus is in operation, the electrical apparatus may first receive input for a driving heating mode selected by a user. The driving heating mode corresponds to an enablement of a heating function is allowed or an enablement of a heating function is to be allowed. Thus, the battery heating function may be enabled or disabled according to the operating parameters of the battery and the motor based on the current driving heating mode. Further, a heating mode that matches the electrical apparatus may be selected based on usage habits and the current driving environment of the electrical apparatus for heating the battery. Further, the example methods avoid ineffective heating increased by manually controlling a battery self-healing function and the resulting high energy consumption in related technologies.

Abstract: Embodiments of the present application provide a traction battery charging and discharging circuit, a system and a control method and a control device therefor. The traction battery charging and discharging circuit comprises a power module, a heating module, and a regulating switch assembly. The heating module comprises an energy storage element and a switch module. The power module comprises at least a first traction battery and a second traction battery. The regulating switch assembly comprises a plurality of switches, and is connected to the power module and the heating module. The regulating switch assembly is configured to connect the first traction battery to the second traction battery in series or in parallel in response to a regulation signal.

Abstract: The present application provides a motor control device, a drive device and an electric apparatus. The motor control device comprises a case in which a motor inverter, a heating power module and an absorption capacitor are housed; each inverter power module in the motor inverter is connected to a motor multiphase interface; the heating power module is connected to a motor neutral interface; a positive input end of the heating power module is connected to a first battery-powered positive interface, and a negative input end is connected to a first battery-powered negative interface; two ends of the absorption capacitor are respectively connected to a high-voltage positive terminal and a high-voltage negative terminal of the heating power module; and a second battery-powered positive/negative interface is connected to a positive/negative input end of the motor inverter.

Abstract: This application provides an electric vehicle battery control circuit, system, and control method. The electric vehicle battery control circuit includes an electric vehicle battery, an energy storage module, a charging module, and a regulation switch component; where the charging module includes a switch module; the electric vehicle battery is connected in parallel with the switch module; the regulation switch component includes multiple switches, where the multiple switches are disposed between the electric vehicle battery and the charging module and between the energy storage module and the charging module; and the energy storage module, the regulation switch component, and the switch module are configured to, in response to control signals, regulate charging/discharging between the electric vehicle battery and the energy storage module, or regulate charging/discharging between the electric vehicle battery and the charging module as well as the energy storage module.

Abstract: The present application provides a battery charging control method and apparatus, an electrical device, a charging device, and a storage medium. The battery charging control method includes: acquiring a battery heating state; and sending a first message carrying the battery heating state to a charging device, so that the charging device judges whether to enter a battery charging stage according to the battery heating state; wherein the battery heating state is a heating state or a heating completion state. Compared with the prior art, in the present application, the electrical device can autonomously implement a process of pulse heating followed by DC charging by relying on the interaction with the charging device, thereby avoiding possible damage to a power 10 battery caused by charging in a low-temperature environment and improving the experience of a user.

Abstract: A method for heating a power battery (1), an apparatus for heating a power battery (1), an electronic device, a system for heating a power battery (1), and a storage medium. The heating method includes: acquiring a current state parameter value of the power battery (1); and heating the power battery (1) using a corresponding heating mode based on the current state parameter value. After the temperature of the power battery (1) rises, the discharge capacity of the power battery (1) increases, and charging can be achieved.

Abstract: The present application provides a motor control device, a drive device and an electric apparatus. The motor control device comprises a case in which a motor inverter and a heating power module are housed, a motor neutral interface, a motor multiphase interface and a battery-powered positive/negative interface being provided on a housing of the case; an output end of each inverter power module of the motor inverter is respectively connected to the motor multiphase interface through an output terminal; an output end of the heating power module is connected to the motor neutral interface through a heating output terminal; a positive input end of the heating power module is connected to the battery-powered positive interface through a high-voltage positive terminal; and a negative input end of the heating power module is connected to the battery-powered negative interface through a high-voltage negative terminal.

Abstract: This application discloses a motor controller, a power system, and an electric apparatus. The motor controller includes a box, a first power device, and a plurality of second power devices. The box is provided with a liquid coolant flow channel, and a liquid inlet and a liquid outlet that are in communication with the liquid coolant flow channel. The first power device is disposed in the box and on a side close to the liquid inlet. The plurality of second power devices are disposed in the box and on a side close to the liquid outlet. The second power devices have a smaller heating power than the first power device. A liquid coolant in the liquid coolant flow channel is capable of separately exchanging heat with the first power device and the plurality of second power devices.

Abstract: The present application provides a switch device, a motor control device, a battery heating system, and an electric apparatus. The switch device includes a first switch means and a second switch means which are arranged in a shell. A second terminal of the first switch means and a first terminal of the second switch means are both connected to the outside of the shell; a first terminal of the first switch means and a second terminal of the second switch means are respectively connected to the outside of the shell; and a control terminal of the first switch means and a control terminal of the second switch means are connected to the outside of the shell.

Abstract: The present application discloses a control method, apparatus, device, and system for a charging and discharging circuit, and a storage medium. A neutral wire of a motor in the charging and discharging circuit is connected to a charging and discharging switching bridge arm group, the method including: acquiring a first current value in the neutral wire in real time during charging and discharging of a power battery by the charging and discharging circuit; and regulating the magnitude of the first current value according to the first current value, first peak current, and second peak current, where the first peak current is known peak current of the charging and discharging switching bridge arm group, and the second peak current is known peak current in the neutral wire.

Abstract: A battery heating system includes a switch assembly, and the switch assembly includes a first switch, a second switch, and a third switch. When the first switch is turned on and the second switch and the third switch are turned off, the first battery group and the second battery group are arranged in series connection and connected to a charging and discharging apparatus, for charging or discharging the first battery group and the second battery group after being connected in series. When the first switch is turned off and the second switch and the third switch are turned on, the first battery group and the second battery group are respectively connected to a battery heating apparatus to form a first loop and a second loop, and the first loop and the second loop are used for heating the first battery group and the second battery group.

Abstract: The present application provides a battery heating method, heating apparatus, and heating system, which can effectively heat a power battery, thereby achieving a high heating efficiency. The heating method is applied to a heating circuit, the heating circuit is connected to a battery and is configured to output a heating current to the battery, and the heating current is configured to heat the battery. The heating method comprises: acquiring polarization parameters of a battery; determining a frequency of the heating current according to the polarization parameters and a peak current of the heating circuit, so that the amplitude value of the heating current does not exceed the peak current; and controlling the heating circuit to output the heating current having the frequency to the battery.

Abstract: The present application provides a power battery voltage regulation circuit, including a power battery, a heating module, a charging and discharging interface, and a voltage regulation switch assembly; the heating module includes an energy storage element and a switch module; the power battery and the switch module are connected in parallel; an external charging and discharging device is connected in parallel with the power battery through the charging and discharging interface; the voltage regulation switch assembly includes multiple switches, and the multiple switches are arranged between the charging and discharging interface and the power battery; and the voltage regulation switch assembly and the switch module are configured to adjust the charging and discharging voltages between the external charging and discharging device and the power battery in response to a voltage regulation control signal.

Abstract: Disclosed is a control method of a heating system for a battery. The control method includes: alternately controlling a switch module to be in a first switch state within a first duration and in a second switch state within a second duration; discharging to a power supply module by an energy storage module through a first loop within the first half time T of the first duration, and charging the energy storage module by the power supply module through the first loop within the second half time T of the first duration; and discharging to the power supply module by the energy storage module through a second loop within the first half time T of the second duration, and charging the energy storage module by the power supply module through the second loop within the second half time T of the second duration.

Abstract: A voltage regulation circuit for traction battery includes a traction battery, a heating module, a charge/discharge interface, and a voltage regulation module. The heating module includes a power storage element and a switch module. The traction battery is connected in parallel to the switch module. An external charging and discharging device is connected in parallel to the traction battery through the charge/discharge interface. The voltage regulation module includes a plurality of switches and a power storage regulation element, and the plurality of switches and the power storage regulation element are disposed between the charge/discharge interface and the traction battery. The voltage regulation module and the switch module are configured to regulate, in response to a voltage regulation control signal, a charge/discharge voltage between the traction battery and the power storage element and a charge voltage of the external charging and discharging device for the traction battery.

Abstract: An electric vehicle control system and a control method, an electric vehicle power-on method, an electric vehicle power-off method, and an electric vehicle charging method are disclosed in this application. The control system includes a domain control unit controlling an electric vehicle, a current sampling unit sampling the current of a power battery and a motor of the electric vehicle and sending sampling signals to the domain control unit, and electrical device, driven by the power battery, sampling the current flowing through it and sending the sampling signals to the domain control unit. The domain control unit, according to the sampling signals sent by the electrical device and the current sampling unit, manages the power battery and controls a motor driver module and the electrical device. The structure of the control system and the control policy are simplified and the power-on and power-off time is shortened.

Abstract: The present application discloses a charging apparatus, which comprises: a direct current (DC) source; a bidirectional DC converter connected between the DC source and a charging port of the charging apparatus; a pulse heating module connected in parallel with the bidirectional DC converter; and a controller configured for: selecting, when a heating request is received and according to a heating frequency requirement of a battery, one of the pulse heating module and the bidirectional DC converter to heat the battery. The present application also relates to a method for heating a battery and a storage medium.

Abstract: A device and method for heating a battery are provided. The device is provided on a first power-consuming device and includes: a first interface electrically coupled to a neutral point of a motor winding of the first power-consuming device; a second interface electrically coupled to a negative electrode of a battery of the first power-consuming device; and a control module coupled to a control system of the first power-consuming device and a control system of a second power-consuming device to coordinate and control the first power-consuming device and the second power-consuming device. The first interface is engageable with a third interface electrically coupled to a neutral point of a motor winding of the second power-consuming device. The second interface is engageable with a fourth interface electrically coupled to a negative electrode of a battery of the second power-consuming device. The control module is configured to perform a battery heating step.

Abstract: A voltage regulation circuit for traction battery includes a traction battery, a heating module, a charge/discharge interface, and a voltage regulation module. The heating module includes a power storage element and a switch module. The traction battery is connected in parallel to the switch module. An external charging and discharging device is connected in parallel to the traction battery through the charge/discharge interface. The voltage regulation module includes a plurality of switches and a power storage regulation element, and the plurality of switches and the power storage regulation element are disposed between the charge/discharge interface and the traction battery. The voltage regulation module and the switch module are configured to regulate, in response to a voltage regulation control signal, a charge/discharge voltage between the traction battery and the power storage element and a charge voltage of the external charging and discharging device for the traction battery.