EDLC-based modular electric vehicle high-power energy storage and heat management system

Abstract

The invention discloses an EDLC-based modular electric vehicle high-power energy storage and heat management system, which comprises a motor module, an integrated power supply distribution module, anenergy storage and power supply module and an external power supply. The motor module comprises a driving wheel and a motor, and the motor is used for mutual conversion between electric energy and kinetic energy; the integrated power supply distribution module comprises a first inverter, a power converter and a second inverter and is used for charging power conversion and mutual alternating current and direct current conversion; the energy storage and power supply module comprises a super capacitor, a lithium battery, a pump and a radiator and is used for storage, conversion and heat exchangeof electric energy. The system has the advantages that the super capacitor is used for replacing a common capacitor, the charging and discharging power is large, the energy density is not low, more energy can be recycled when an automobile is braked, electric energy conversion can be achieved in a balanced and efficient mode during acceleration, and the energy utilization efficiency of the systemis improved.

Description

technical field [0001] The invention relates to the technical field of energy storage and thermal management of new energy vehicles, and relates to a high-power energy storage and thermal management system for modularized electric vehicles based on EDLC. Background technique [0002] As the power source of electric vehicles, the performance of the battery determines the power of the vehicle, the life of the battery determines the performance of the battery, and the temperature rise of the battery will affect its life. The battery capacity (under certain conditions, the amount of electricity the battery can release) is limited, so the cruising range of pure electric vehicles is limited. The research of energy recovery system is one of its core technologies. The energy recovery system refers to converting a part of the kinetic energy into electric energy when the car decelerates or brakes, stores it and then uses it to drive the car. [0003] At present, the heat management ...

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Problems solved by technology

[0005] The above two braking energy recovery schemes, the former is bound to be converted into heat energy during the mechanical braking process, and this part of energy cannot be recovered into the power battery, resulting in waste of energy; the latter is always calculated by the vehicle controller The torque command is given to the motor controller without considering the intervention of the braking system, and the energy recovery rate is low

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