Power-change type electric vehicle power on/off control system and method

Abstract

The invention discloses a power-change type electric vehicle power on / off control system and method; the system comprises a vehicle mechanism and a vehicle control unit; the vehicle mechanism comprises the vehicle control unit, a battery management system, and a chassis batter locking mechanism; the vehicle control unit is used for detecting a battery locking signal sent by the chassis battery locking mechanism and a battery fast change signal sent by a battery fast change mechanism, controlling high / low voltage power on / off of the vehicle in a battery fast change process according to the battery locking signal and the battery fast change signal, and sending a permitted fast change order to the battery fast change mechanism; the battery fast change mechanism is used for replacing the cell pack in the battery manage system according to the permitted fast change order. The system and method can monitor the power change process of the vehicle; if the vehicle high voltage system is connected and electrified in the beginning of the power change process, the system and method can automatically disconnect the high voltage, thus improving efficiency and safety of the power change process.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to a power-on / off control system and method for a battery-swap type electric vehicle. Background technique [0002] Based on the factors of environment, energy and technological development, new energy vehicles are the current and future trend of automobile development, among which pure electric vehicles are the mainstream products. Constrained by the limited space of electric vehicles and the low energy density of the battery system itself, the driving range of current pure electric vehicles cannot meet the long-distance driving of vehicles. In order to solve this problem, a variety of quick-change solutions for pure electric vehicle battery systems have emerged to meet the needs of fast-change battery systems to ensure the driving range of electric vehicles. [0003] However, most of the current battery system quick replacement schemes are aimed at the mechanical mechan...

AI Technical Summary

Problems solved by technology

[0003] However, most of the current battery system quick replacement schemes are aimed at the mechanical mechanism of the quick change mechanism (including quick change implementation equipment and quick change control system, battery system and vehicle chassis); However, there is little or no information interaction, and too much reliance on the driver and the battery replacement staff to supervise the battery replacement process, resulting in high personnel consumption and low efficiency; if the supervisors themselves have a low sense of responsibility and insufficient supervision, the vehicle system cannot Monitoring the battery replacement process, there is a phenomenon that the whole vehicle is forced to replace the battery with high voltage, and there are safety hazards such as high voltage short circuit, which will harm personal safety and equipment safety.

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