A multi-vehicle cooperative vehicle charging device and method

Abstract

The invention discloses a multi-vehicle cooperative on-board charging device, which includes an on-board charger for a master car, a power battery pack for a master car, a power battery pack for a slave car, a battery management system for a master car, a battery management system for a slave car, a vehicle controller for a master car, and a power battery pack for a slave car. Slave vehicle controller, IGBT array and additional charging gun; under the action of the main vehicle controller, connect more power battery packs by adding charging guns, and share the same charging pile for charging; controlled by the vehicle controller The IGBT array selects the power battery pack connected to the on-board charger to charge, so that the power battery pack is in the process of pulse charging-stationary cycle charging, which solves the problem that multiple electric vehicles cannot be charged with the same charging pile; keep the on-board charger Continuous output, improve the charging power utilization capacity of the on-board charger, solve the contradiction of low charging power utilization capacity of the on-board charger in the later stage of single-vehicle charging, and reduce the dependence on the charging infrastructure. The invention also provides a multi-vehicle cooperative vehicle charging method.

Description

technical field [0001] The invention relates to a high-efficiency charging method suitable for a vehicle charger, in particular to a multi-vehicle cooperative vehicle charging device and method, a charging method for improving the power utilization rate of a vehicle charger, improving the charging power utilization capability of a vehicle charger, and shortening the charging time of multiple vehicles. Electric car charging time. Background technique [0002] Pure electric vehicles use electric motors as drive devices, and are powered by on-board rechargeable batteries or other energy storage devices. They have the advantages of zero emissions, high efficiency, quietness, smooth operation, easy driving and operation, low maintenance costs, and a wide range of required power sources. , so in the existing new energy vehicle technology, it is regarded as the long-term development goal or the ultimate development goal. [0003] The energy storage devices commonly used in electri...

AI Technical Summary

Problems solved by technology

[0005] Due to the imperfect charging infrastructure of electric vehicles, there are insufficient charging piles in some areas, causing multiple electric vehicles to wait for the same charging pile to charge, resulting in the decline of user experience of electric vehicles and serious waste of user time.

Images