Electric automobile control method and system and electric automobile

Abstract

The invention provides an electric automobile control method and system and an electric automobile. The electric automobile control method is characterized by comprising the steps of receiving a maintenance instruction transmitted by automobile diagnosis equipment; controlling a charging relay to be turned off according to the maintenance instruction; detecting state information of a related device on a charging circuit while the charging relay is controlled to be turned off; and generating prompting information whether maintenance is allowed or not according to the state information of the related device on the charging circuit. According to the electric automobile control method, when maintenance personnel touch a high voltage part in the vehicle maintenance process, a maintenance request is transmitted by using the automobile diagnosis equipment so as to guarantee that high-voltage power-on is not started to avoid electric shock when the automobile receives the maintenance request;therefore, the electric shock risk caused when the maintenance personnel disassemble, touch and maintain the high voltage part is avoided and the forbidding of the high-voltage power-on function is guaranteed. And meanwhile, as the prompting information whether the maintenance is allowed or not is generated according to the state information of the related device on the charging circuit, the normal maintenance work can be carried out on the premise of guaranteeing the safeties of the maintenance personnel.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to an electric vehicle control method and system and the electric vehicle. Background technique [0002] Electric vehicles have a high-voltage system, and the normal driving and charging functions of the vehicle depend on the normal operation of the high-voltage power-on function. Therefore, it is necessary to detect the high-voltage power-on function of the electric vehicle. In the prior art, the electric vehicle has a remote control function, which allows the vehicle to start the high-voltage power supply of the vehicle by operating the mobile phone application. Therefore, the vehicle may be powered on at high voltage without the knowledge of the maintenance personnel overhauling the vehicle, causing the maintenance personnel to accidentally come into contact with high voltage without starting the vehicle, resulting in the risk of high voltage electric shock. Contents ...

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Problems solved by technology

[0003] Embodiments of the present invention provide an electric vehicle control method, system, and electric vehicle to solve the problem in the prior art that maintenance personnel accidentally come into contact with high voltage when the vehicle is powered on at high voltage when the maintenance personnel overhaul the vehicle, resulting in the risk of high voltage electric shock

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