Active control type hybrid power system for pure electric bus and control method of active control type hybrid power system

Abstract

The invention discloses an active control type hybrid power for a pure electric bus and a control method of the active control type hybrid power system, and aims to solve the problems that the existing electric bus power supply is not suitable for charging and discharging in large current and is low in brake energy and storage efficiency. The control type hybrid power comprises a lithium ion battery group, a control circuit and a super capacitor, wherein the positive pole of the lithium ion battery group is connected with one end of an inductance coil L of the control circuit, and the negative pole of the lithium ion battery group is connected with an insulated gate bipolar transistor T of the control circuit and the negative pole of the super capacitor; and the negative pole of the super capacitor is connected with the negative pole of an ampere meter A1 of the control circuit. The control method of the active control type hybrid power comprises the following steps of: actively controlling the starting stage of the pure electric bus; actively controlling the beginning step of the pure electric bus; actively controlling the stable running stage of the pure electric bus; actively controlling the brake reducing stage of the pure electric bus; actively controlling the accelerating stage of the pure electric bus; and actively controlling the circulate running and stopping stage of the pure electric bus.

Description

technical field [0001] The invention relates to a composite power supply for pure electric passenger cars, more precisely, the invention relates to an active control composite power supply for pure electric passenger cars and a control method thereof. Background technique [0002] At present, in the field of transportation, the development of pure electric vehicles is an effective way to solve the problems of energy shortage and environmental pollution, but the problem of insufficient power supply for vehicles has always been the bottleneck restricting the development of pure electric vehicles. At this stage, there are mainly two types of vehicles: With power supply: [0003] Single storage battery: Its energy density and power density are far from meeting people's expectations, making it difficult to solve the problems of pure electric vehicles such as power and driving range, and affecting the large-scale popularization of pure electric vehicles. [0004] Direct parallel ...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to overcome the problems that the traditional vehicle power supply is not suitable for large current charging and discharging, the energy utilization rate is low, and the braking energy storage efficiency is low, and an active control composite power supply for pure electric passenger cars is provided. At the same time, it also provides a control method for an active control composite power supply for pure electric buses

Images