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Dynamic balance charging control method and control system for power battery of double-source trolley bus

A charging control method and power battery technology, applied in the direction of battery overcharge protection, battery circuit device, safety/protection battery circuit, etc., can solve problems affecting service life, etc., and achieve prolonging service life, good performance, and avoiding overcharging Effect

Active Publication Date: 2016-07-27
ZHENGZHOU YUTONG BUS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a dual-source trolleybus power battery dynamic balance charging control method to solve the problem that the traditional extensive charging method of power batteries affects its service life

Method used

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  • Dynamic balance charging control method and control system for power battery of double-source trolley bus
  • Dynamic balance charging control method and control system for power battery of double-source trolley bus
  • Dynamic balance charging control method and control system for power battery of double-source trolley bus

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Embodiment Construction

[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0026] Embodiment of control method

[0027] based on figure 1 As shown in the dual-source trolleybus power system, the present invention provides a dual-source trolleybus power battery dynamic balance charging method, the control method is set in the controller for corresponding control, such as the vehicle controller.

[0028] Based on the designed off-grid mileage of the vehicle, set the power balance point C of the power battery. The power balance point C is the "demarcation line" of the charging power of the power battery, that is, at this balance point C, the charging power of the power battery can be zero, and the power battery is neither charged nor discharged. Since it is a special case when the power of the battery is exactly at the balance point, no separate detailed description will be made here.

[0029] Since the power of the power battery ca...

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Abstract

The invention relates to a dynamic balance charging control method and control system for a power battery of a double-source trolley bus. The method comprises the steps as follows: the actual electric quantity of the power battery is firstly compared with a set balance point; when the electric quantity of the power battery is smaller than the preset balance point, an SOC of the power battery is relatively small and a charging power of the power battery is relatively high; and when the electric quantity of the battery pack is greater than or equal to the set balance point, the power battery is not charged. According to the method, the electric quantity of the battery pack can be stabilized near the balance point; and over-charge and over-discharge of the power battery are avoided. The performance of the battery at the balance point is the best, so that good performance of the power battery is ensured; and the service lifetime of the battery is prolonged.

Description

technical field [0001] The invention relates to a dynamic balance charging control method and a control system for a dual-source trolleybus power battery, and belongs to the field of intelligent charging of a dual-source trolleybus power battery. Background technique [0002] The dual-source trolleybus is a coupled vehicle of a traditional trolleybus and a pure electric vehicle. The power balance of the power battery is the key to determine the uninterrupted operation of off-grid and on-grid. Such as figure 1 As shown, it is the existing trolleybus power system, one end of the collector (collector pole) is connected to the electric car power supply line, and the other end is connected to the driving motor of the electric car through isolated DC / DC, and the driving motor is used to drive the electric car; power The battery is connected between the isolated DC / DC and the drive battery, wherein the isolated DC / DC is connected to the collector through a high-voltage line, and t...

Claims

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Application Information

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IPC IPC(8): H02J7/00
CPCH02J7/0026H02J7/00302H02J7/007
Inventor 位跃辉苏常军高建平杨学青刘振楠
Owner ZHENGZHOU YUTONG BUS CO LTD
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