An assembled battery includes a plurality of Peltier elements, a plurality of control circuits each of which controls an associated one of the plurality of Peltier elements, a plurality of battery cells at least one of which is connected to one end of each of the plurality of Peltier elements, and a heat transfer plate connected to the other end of each of the plurality of Peltier elements.

An assembled battery includes a plurality of Peltier elements, a plurality of control circuits each of which controls an associated one of the plurality of Peltier elements, a plurality of battery cells at least one of which is connected to one end of each of the plurality of Peltier elements, and a heat transfer plate connected to the other end of each of the plurality of Peltier elements.

A battery energy processing device includes: first and second inductors, first and second phase bridge arms, an energy storage element, and a controller. First ends of the first and second inductors are connected with a positive electrode of a battery. A midpoint of the first phase bridge arm is connected with a second end of the first inductor; A midpoint of the second phase bridge arm is connected with a second end of the second inductor. A first end of the energy storage element is connected with a first confluent end; a second end of the energy storage element is connected with a second confluent end. The controller is configured to control the first and second phase bridge arms to charge and discharge the battery through the first and second inductors to heat the battery. The first and second inductors are in different operating states.

A battery energy processing device includes: first and second inductors, first and second phase bridge arms, an energy storage element, and a controller. First ends of the first and second inductors are connected with a positive electrode of a battery. A midpoint of the first phase bridge arm is connected with a second end of the first inductor; A midpoint of the second phase bridge arm is connected with a second end of the second inductor. A first end of the energy storage element is connected with a first confluent end; a second end of the energy storage element is connected with a second confluent end. The controller is configured to control the first and second phase bridge arms to charge and discharge the battery through the first and second inductors to heat the battery. The first and second inductors are in different operating states.

Heating a battery and cooling an electric power conversion device are achieved together. This mobile body includes an electric motor, a battery, a thermoelectric conversion element, an electric power conversion device, and a controller. The electric motor is a driving source. The electric power conversion device is configured to convert electric power outputted from the battery into driving electric power for the electric motor. The electric power conversion device is disposed in direct contact or in indirect contact with the battery with the thermoelectric conversion element interposed therebetween. The controller is configured to control electric power to be supplied to the thermoelectric conversion element. The controller controls, in a case where the battery is in a predetermined low-temperature state, the electric power to be supplied to the thermoelectric conversion element to cause a surface of the thermoelectric conversion element coupled to the battery to serve as a heat dissipation surface.

The present disclosure provides a method for controlling the coolant flow of a liquid-cooled power battery, a system, and a vehicle. The method obtains a relationship between a temperature difference within a battery pack and a temperature difference within the coolant, and deduces a target temperature difference within the coolant according to a target temperature difference within the battery pack and the relationship between the temperature difference within the battery pack and the temperature difference within the coolant. The method determines a required flow capacity of the coolant according to the target temperature difference within the coolant, and controls a battery cooling pump to operate according to the required flow capacity of the coolant. The problem of higher energy consumption existing in existing liquid-cooled battery packs for controlling the temperature difference within the battery pack is resolved by the disclosure.

The present disclosure provides a method for controlling the coolant flow of a liquid-cooled power battery, a system, and a vehicle. The method obtains a relationship between a temperature difference within a battery pack and a temperature difference within the coolant, and deduces a target temperature difference within the coolant according to a target temperature difference within the battery pack and the relationship between the temperature difference within the battery pack and the temperature difference within the coolant. The method determines a required flow capacity of the coolant according to the target temperature difference within the coolant, and controls a battery cooling pump to operate according to the required flow capacity of the coolant. The problem of higher energy consumption existing in existing liquid-cooled battery packs for controlling the temperature difference within the battery pack is resolved by the disclosure.

A battery temperature control system, maintaining a temperature of a battery mounted on an electric vehicle within a target temperature range while the electric vehicle is stopped, includes: an environment estimation unit configured to estimate an environment in which the electric vehicle is stopped; a reference temperature setting unit configured to set a reference temperature from a plurality of pieces of temperature information based on the environment estimated by the environment estimation unit; a battery temperature transition prediction unit configured to predict a temperature transition of the battery based on the reference temperature; and a battery temperature adjustment unit configured to adjust the temperature of the battery based on the temperature transition of the battery.

A battery temperature control system, maintaining a temperature of a battery mounted on an electric vehicle within a target temperature range while the electric vehicle is stopped, includes: an environment estimation unit configured to estimate an environment in which the electric vehicle is stopped; a reference temperature setting unit configured to set a reference temperature from a plurality of pieces of temperature information based on the environment estimated by the environment estimation unit; a battery temperature transition prediction unit configured to predict a temperature transition of the battery based on the reference temperature; and a battery temperature adjustment unit configured to adjust the temperature of the battery based on the temperature transition of the battery.

The present disclosure provides a battery pack control method, a system, and a vehicle which are applied to a vehicle having a vehicle-mounted communication terminal, and relates to the technical field of automobiles. Wherein the vehicle includes a heating module and a cooling module; when the vehicle is in a powered-off state, and when a trigger condition of the predetermined timing task is reached, the vehicle is waken up by the vehicle-mounted communication terminal, and then the temperature of the battery pack is controlled so that the temperature of the battery pack is maintained within the preset range, so as to restart and use the vehicle; thus to solve the problems in the prior art that after the vehicle is in a powered-off state, the temperature of the battery pack cannot be controlled using a heat management system, and the temperature of the battery pack is easily too low or too high due to a lower or a higher ambient temperature.