Three-energy power system and energy management method for extended-range electric bus

Abstract

A three-energy power system and an energy management method for an extended-range electric bus. At present, the technical bottleneck of electric buses lies in power batteries. Most electric vehicles use lithium batteries. The cost of a battery is similar to that of traditional buses of the same level. The power cannot meet the requirements and the cruising range is short. The invention consists of: a range extender (1), a solar photovoltaic system (6), the range extender includes an engine (3), the engine is connected to the generator (2) through a connecting shaft, and the generator is connected to the generator controller ( 10) Connection, the generator controller is respectively connected with the vehicle controller (13), the motor controller (12), the power battery (9), and the supercapacitor system (5), and the power battery is respectively connected with the photovoltaic control system in the solar photovoltaic system The photovoltaic controller is connected to the solar panel (7) and the vehicle controller through wires respectively. The invention is used for a three-energy power system of an extended-range electric passenger car.

Description

Technical field: [0001] The invention relates to energy management of an electric vehicle, in particular to a three-energy power system and an energy management method for an extended-range electric passenger car. Background technique: [0002] In the field of public transportation, while traditional fuel buses bring great convenience to human life, they also bring serious environmental pollution and energy crises. Today's automobile industry is bound to develop in the direction of low noise, zero emissions, and comprehensive energy utilization. The electric bus is an important way to solve these problems; at present, the technical bottleneck of the electric bus mainly lies in the power battery, most of the electric vehicles now use lithium batteries, the disadvantage is that the cost is very high, the cost of the battery used in a car is the same as the original The cost of traditional buses of the same level is similar; the second is that the electricity cannot meet the re...

AI Technical Summary

Problems solved by technology

[0002] In the field of public transportation, while traditional fuel buses bring great convenience to human life, they also bring serious environmental pollution and energy crises. Today's automobile industry is bound to develop in the direction of low noise, zero emissions, and comprehensive energy utilization. The electric bus is an important way to solve these problems; at present, the technical bottleneck of the electric bus mainly lies in the power battery, most of the electric vehicles now use lithium batteries, the disadvantage is that the cost is very high, the cost of the battery used in a car is the same as the original The cost of traditional buses of the same level is similar; the second is that the power cannot meet the requirements of modern buses, the cruising range is short, and the charging facilities are not perfect

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