Vehicle charging and discharging control device and method and vehicle

Abstract

The invention discloses a vehicle charging and discharging control device and method and a vehicle, and the device comprises a battery interface which is used for being connected with a high-voltage battery of the vehicle; the charging and discharging interface is connected with the battery interface through the charging and discharging module and used for being connected with a gun head at one end of the charging connecting device to be connected with external equipment through the charging connecting device; the control module comprises a type recognition unit and a mode control unit, and the type recognition unit is used for identifying the gun head type of the gun head connected with the charging and discharging interface when it is determined that the charging and discharging interface is connected with the external equipment through the charging connection device; the mode control unit is used for controlling the vehicle and external equipment to carry out charging handshake andcontrolling the charging and discharging module to enter a working mode corresponding to the gun head type; and the charging and discharging module is used for charging external equipment by utilizingthe DC provided by the high-voltage battery in a direct-current discharging mode or an alternating-current discharging mode. According to the invention, the charging between the electric vehicles canbe better realized.

Description

Technical field [0001] The present invention relates to the field of vehicle technology, in particular to a vehicle charging and discharging control device, method and vehicle. Background technique [0002] With the rapid development of electric vehicle technology, electric vehicles with economic and environmental advantages have become the means of transportation of more and more people. When the electric vehicle has insufficient power, but there is no charging pile nearby for charging, mutual charging between vehicles is a better choice. [0003] The prior art solution is to use a charging connection device to connect the power-supply vehicle and the power-receiving vehicle, and then the power-supply vehicle converts the DC power provided by its high-voltage battery into alternating current, and then transmits it to the power-receiving vehicle through the charging connection device. The high-voltage battery is charged to realize car-to-car charging. [0004] However, the inventor...

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Problems solved by technology

[0004] However, the inventor found in the process of implementing the present invention that because the power supply vehicle in the prior art can only perform AC discharge, and the AC discharge speed is relatively slow, and the high-voltage battery of the electric vehicle itself can only accept DC charging, resulting in power receiving After the vehicle receives AC power, it needs to be further converted into DC power before it can charge its high-voltage battery. As a result, the existing vehicle-to-vehicle charging is inefficient and time-consuming, so that when the user needs to charge another vehicle quickly, unable to meet demand

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