Electric automobile charging method, charging device and vehicular charger

Abstract

The invention provides an electric automobile charging method, a charging device and a vehicular charger. A control confirmation signal line and a charging line are connected between the charging device and the vehicular charger, the control confirmation signal line is provided with a single-pole double-throw switch and a connection switch disposed at the end of the vehicular charger, and the charging line is provided with a charging switch. The method comprises the following steps: when the single-pole double-throw switch is converted from a first state of connection with a level end to a second state of connection with a pulse signal end, the charging device sending control confirmation signals to the vehicular charger to enable the vehicular charger to control the connection switch to be at a switched-on state; when the connection switch is at the switched-on state, the charging device controlling the charging switch to be switched on so as to pre-charge the vehicular charger through the charging line; and when completion signals fed back by the vehicular charger are detected, switching off the charging switch to complete pre-charging. According to the invention, based on a conventional charging system, through signal state logic change, a vehicle pile charging reservation function is realized.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to an electric vehicle charging method, charging equipment and a vehicle-mounted charger. Background technique [0002] On the basis of the existing charging system, it is usually necessary to change the logic of the signal state to realize the car pile charging reservation function. At present, the charging state conversion process required by the national standard does not have detailed requirements and plans for the car pile reservation function. For the problem of reserved functions in the national standard: No matter what kind of reservation, because there is no strict timing jump time requirement, the manufacturer can wait for a long time, or shut down the device within a certain period of time (3-10 seconds). Therefore, the existing reserving operation of the charging device may lead to the interruption or inability to start the normal charging function, which bring...

AI Technical Summary

Problems solved by technology

[0003] The embodiment of the present invention provides an electric vehicle charging method, charging equipment, and a vehicle-mounted charger to solve the problem that the normal charging function may be interrupted or cannot be interrupted due to the lack of strict sequence jump time requirements in the prior art during the vehicle pile reservation process. Initiated, bringing constant issues to user operations

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