Pure battery vehicle energy management system

Abstract

The invention discloses a pure battery vehicle energy management system and method. The energy management system comprises a position acquisition unit, a battery management unit and an energy management unit, wherein the energy management unit is in communication connection with the position acquisition unit and battery management unit, the position acquisition unit is used for acquiring station information of a current charging station and the station mileage between the current charging station and a next charging station, the battery management unit is used for acquiring permissible charging current and the current battery charge state of a vehicular battery, and the energy management system is used for calculating traction energy consumption needed by a train reaching the next chargingstation according to the station mileage, and calculating charging time of the train at the current charging station according to the traction energy consumption, the permissible charging current andthe current battery charge state. The charging time of the train at each station can be reasonably controlled, electric quantity is intelligently and accurately regulated and managed, halfway stop ofthe train due to electricity shortage is effectively avoided, and normal operation of lines is ensured.

Description

technical field [0001] The invention belongs to the technical field of energy management of an energy storage system, and more specifically relates to a pure battery vehicle energy management system based on a passenger information system and a battery management system. Background technique [0002] The full-line non-grid vehicle-mounted energy storage tram has developed rapidly in recent years because it does not need a small amount of catenary on the entire line or only in some sections of the road, which has almost no impact on the urban landscape and height restrictions. But at the same time, since the pure battery-type on-board energy storage tram operates in the form of charging station + on-board energy storage system, its operating mileage is determined by the amount of power carried by the train energy storage system and the number of charging stations. During the operation of trams, due to non-exclusive right of way, unexpected situations such as intersection acci...

AI Technical Summary

Problems solved by technology

[0005] Aiming at at least one defect or improvement requirement of the prior art, the present invention provides a pure battery vehicle energy management system based on a passenger information system and a battery management system. Management System (BMS) and Passenger Information System (PIS), calculate the traction energy consumption from the current station to the next charging station in combination with the most severe working conditions during design, and dynamically adjust the charging station’s The way of use is to reasonably control the charging time of the train at each charging station to ensure sufficient energy consumption for the train. The purpose is to solve the problem that the tram driver may miscalculate the arrival of the train due to operational errors, traffic jams, and charging station failures. The power consumption and charging time at the next charging station will lead to insufficient energy of the energy storage device and the problem of the train stopping halfway

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