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Electric power output control system for electric vehicle with combined fuel battery

A fuel cell and electric vehicle technology, applied in electric vehicles, control drives, vehicle components, etc., can solve the problems of insufficient charging facilities, heavy battery weight, and too late to provide molecular numbers, etc., to improve overall efficiency, cruising distance, and good output The effect of power elasticity and good battery life

Inactive Publication Date: 2002-05-01
IND TECH RES INST
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Problems solved by technology

[0012] In area C, the output current density reaches the highest. The reason for the loss is that when a large number of reactions occur, the number of molecules of the reaction gas (air and hydrogen) is relatively large, but the transmission of the reaction gas and protons is limited by mass transfer. Limitation, too late to provide the number of molecules required for the reaction, resulting in a sharp drop in voltage
[0013] Based on solving the shortcomings of the above-mentioned traditional technology, although the traditional electric vehicle has the characteristics of low noise and no air pollution, it still has the characteristics of long charging time, short battery life, and heavy weight of the battery (lead battery) And the lack of charging facilities... and other issues have greatly restricted traditional electric vehicles

Method used

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  • Electric power output control system for electric vehicle with combined fuel battery
  • Electric power output control system for electric vehicle with combined fuel battery
  • Electric power output control system for electric vehicle with combined fuel battery

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Embodiment Construction

[0038] Preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0039] see figure 2 , is the current density-voltage characteristic curve diagram of the solid polymer fuel cell used in the present invention, wherein the solid polymer fuel cell generates electricity through the electrochemical reverse reaction of air and hydrogen (the fuel cell can be regarded as a small power plant ), in the process of power generation, due to the air pressure entering the fuel cell, air temperature, humidification state (humidity change), air cleanliness and hydrogen utilization (Hydrogen Utilization), the relationship between the current density and voltage of the fuel cell is based A, B, C, and D areas in the figure show that this is the possible variation range of the polar line diagram, that is, higher air supply pressure, air temperature, air humidity, oxygen purity and hydrogen utilization rate will make the curve follow T...

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Abstract

An electric power output control system for electric vehicle with fuel battery features that a DC / DC converter is used to boost the voltage of fuel battery to proper valuve under low-load state, said fuel battery is also used as on-board charger, besides said fuel battery an external high-power secondary battery is used for supplementing additional energy under high load state, and a controller area network is used as control channel.

Description

technical field [0001] The invention relates to a power output control system of a hybrid fuel cell electric vehicle, especially a communication through a controller local area network interface, which integrates a DC / DC converter, a solid polymer fuel cell and a small, one Lightweight and high-power secondary batteries... and other power sources, the electric vehicle power source control system that maintains the power system in a better operating state. Background technique [0002] Motor vehicles have long been the means of transportation with the largest number in my country. Because of their lightweight, fuel-efficient and convenient parking features, motor vehicles have almost become a must-have means of transportation for every family. The concentration of carbon monoxide and hydrocarbons increases, which seriously damages the structure of the atmosphere), so strict emission standards are formulated for automobiles and motor vehicles, and four-stroke motor vehicles hav...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L15/00B60L15/04
CPCY02T10/645Y02T10/7225Y02T10/64Y02T10/72
Inventor 萧瑞圣吴建宗徐启堂洪金泉苏评挥
Owner IND TECH RES INST
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