Power supply system of hybrid electric vehicle

A hybrid electric vehicle and power supply system technology, applied in electric vehicles, electric traction, vehicle components, etc., can solve the problems of high cost of power converters, low operating efficiency of fuel cell systems, large volume, etc., and achieve simple structure and convenient control , the effect of low cost

Active Publication Date: 2013-04-03
SAIC MOTOR
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a power supply system for hybrid electric vehicles, which is used to solve the problems of high cost, large volume and low operating efficiency of the fuel cell system in the existing power supply system.

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  • Power supply system of hybrid electric vehicle
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Embodiment Construction

[0035] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0036] see Figure 1 to Figure 2 . It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention. Limiting conditions, so there is no technical substantive meaning, any modification of structure, change of proportional relationship or adjustment of size, without affecting the effect and purpose of the present invention, should still fall within the scope of the present invention. The disclosed technical content must be within the scope covered. At the sa...

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Abstract

The invention provides a power supply system of a hybrid electric vehicle, and the power supply system is connected with a motor drive system for driving the vehicle to run, and the power supply system comprises a fuel battery, a hydrogen supply system, a fuel battery accessory, an auxiliary power source and a power supply converter; the power supply system also comprises a control element, a contactor and a diode, wherein the control element is connected with the power supply converter and connected with the fuel battery and the motor drive system when the power supply converter does not work; the contactor is provided with a first connecting end and a second connecting end and arranged between the fuel battery and the power supply converter, the first connecting end is connected with the fuel battery, and the second connecting end is connected with the power supply converter; and the diode is used for controlling the fuel battery to supply power to the fuel battery accessory, an anode of the diode is connected with the power supply converter, and a cathode of the diode is connected with the fuel battery accessory. Due to the adoption of the power supply system, the problems of the existing power supply system that the cost of the power supply converter is high, the size is large and the running efficiency of the fuel battery system is low can be solved.

Description

technical field [0001] The invention relates to the technical field of fuel cell vehicles, in particular to a power supply system of a hybrid vehicle. Background technique [0002] A hybrid vehicle refers to a vehicle that has at least two power sources and uses one or more of them to provide part or all of the power. However, in real life at present, most hybrid vehicles use traditional internal combustion engines and electric motors as power sources, and drive the vehicles through the mixed use of two systems of heat and electricity. The internal combustion engines used are both diesel and gasoline, so traditional gasoline or diesel can be used, and some engines have been modified to use other alternative fuels, such as compressed natural gas, propane and ethanol fuel. [0003] There are many kinds of vehicle power sources: batteries, supercapacitors, fuel cells, solar cells, generator sets for diesel locomotives. Currently, hybrid vehicles generally refer to cars with ge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L11/18
Inventor 程伟欧阳启孙逸神殷婷婷谷凯
Owner SAIC MOTOR
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