Electric automobile and discharging device thereof

Abstract

The invention discloses a discharging device of an electric automobile. The discharging device comprises an alternating current charging port, a meter, a controller, a battery manager and a power battery, wherein the alternating current charging port is connected with a charging pile which is connected with a power grid, and is used for delivering output alternating current electricity to the power grid through the charging pile; the meter is used for sending out a discharging preparation command when a trigger signal is received; the controller is used for detecting whether the alternating current charging port is connected with the charging post after the discharging preparation command is received, is used for detecting whether a pulse width modulation (PWM) wave with preset voltage exists inside the controller or not, and is switched to be in an external discharging mode if the PWM wave with preset voltage exists inside the controller; the battery manager is used for controlling an external discharging loop in a high-voltage distribution cabinet which is used for actuating the electric automobile after the controller is switched to be in the external discharging mode; and the power battery is used for providing direct current electricity through the external discharging loop in the high-voltage distribution cabinet. The discharging device of the electric automobile has the advantages of simple model, high efficiency and applicability. The invention also provides the electric automobile.

Description

technical field [0001] The invention relates to the technical field of automobile control, in particular to an electric automobile and a discharge device thereof. Background technique [0002] With the development of science and technology, environmentally friendly and energy-saving electric vehicles are playing the role of replacing fuel vehicles. However, the popularization of electric vehicles still faces some problems. Among them, high mileage and fast charging technology have become a major issue in the promotion of electric vehicles. problem. [0003] At present, most electric vehicles use large-capacity batteries. Although the battery life of electric vehicles can be improved, the same large-capacity batteries also bring about the problem of long charging time. Although professional DC charging stations can quickly charge batteries, the high cost and large footprint make it difficult to popularize such infrastructure. At the same time, due to the limited space of veh...

AI Technical Summary

Problems solved by technology

[0009] Since there is no dedicated large-scale electric energy storage equipment, a large part of the electric energy generated by the grid will be wasted in vain at night or other low-peak electricity consumption

Electric vehicles are equipped with large-capacity and high-quality energy storage devices: power batteries, but the power of the power batteries is only used by the vehicle. This solution makes the use of electric vehicle power batteries too limited

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