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Charging method for hybrid electric bus super capacitors

A super capacitor and hybrid technology, applied in electric vehicles, battery circuit devices, current collectors, etc., can solve the problems of factory charging and power supply of super capacitors, achieve a simple charging process, and solve the problem of factory charging and power supply after maintenance. Effect

Active Publication Date: 2014-11-26
ZHENGZHOU YUTONG BUS CO LTD
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a charging method for a supercapacitor of a hybrid electric bus to solve the problem of supercapacitor charging at the factory and supplementing power after maintenance

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  • Charging method for hybrid electric bus super capacitors
  • Charging method for hybrid electric bus super capacitors

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Embodiment Construction

[0014] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0015] The steps of the charging method for hybrid electric passenger car supercapacitor of the present invention are as follows:

[0016] (1) Power-limited charging: The generator carried by the hybrid electric bus itself charges the supercapacitor. First, the starter is controlled by the whole vehicle to start. During the process of increasing the speed of the starter, the power generated by the starter drives the rotation of the engine shaft. The generator works, and the counter electromotive force generated by the generator charges the supercapacitor;

[0017] (2) Low-power charging: When the supercapacitor voltage reaches the first set value, the engine starts to drive the generator to charge the supercapacitor with low power;

[0018] (3) Trickle charging: When the low-power charging makes the supercapacitor voltage reach the second set value, the gene...

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Abstract

The invention relates to a charging method for hybrid electric bus super capacitors. A super capacitor is charged by a generator carried by a hybrid electric bus. First, the super capacitor is charged at limited power through counter electromotive force generated by the generator; when the voltage of the super capacitor reaches a first set value through charging, an engine is started to drive the generator to charge the super capacitor at low power; when the voltage of the super capacitor reaches a second set value, power is compensated to the super capacitor through trickle charge; and when the super capacitor is compensated to reach a certain range, the speed of the engine is improved to an economic zone, and the generator is driven by the engine to charge the super capacitor at high power. The whole charging process requires no external charger or new equipment. The charging process is simpler. The defects of a scheme in which a super capacitor and a motor are combined are avoided. The problems of factory charging and after-repair power compensation of super capacitors are solved.

Description

technical field [0001] The invention relates to a charging method for a supercapacitor of a hybrid electric passenger car. Background technique [0002] In new energy vehicles, energy systems, electric drive systems, and vehicle control systems are the three core technologies. The selection and control of each system are closely related. At present, restricted by the development of battery technology, supercapacitors have become the main choice of on-board energy for hybrid buses due to their high specific power, long cycle life, and low maintenance costs. Due to the characteristics of on-board energy, it is necessary to match a high-performance electric drive system. There are certain shortcomings in the combination of supercapacitors and motors: [0003] 1) The voltage of the supercapacitor is close to 0V when it leaves the factory and the vehicle is installed or after maintenance. However, the configuration and industrialization of new energy hybrid electric buses requi...

Claims

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Application Information

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IPC IPC(8): H02J7/14
CPCY02T10/70
Inventor 杨泗鹏郑维王庆国彭能岭陈慧勇苏常军许盛中张广利丁计飞
Owner ZHENGZHOU YUTONG BUS CO LTD
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