Hybrid power vehicle using composite power supply power system

A technology for hybrid electric vehicles and composite power supplies, which is applied to the layout of multiple different prime movers of hybrid electric vehicles and general-purpose power plants, and motor vehicles. Issues such as the supercapacitor release of electric energy are not raised, and the effect of improving energy utilization efficiency, service life, and excellent physical properties is achieved.

Inactive Publication Date: 2013-06-12
CHINA FIRST AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the solution uses the power battery to charge the supercapacitor when the car is stopped, which will easily lead to excessive discharge of the power battery and shorten the service life of the power battery, and the energy output and input when the car encounters a climbing and descending section are not considered. Failure to fully consider the energy utilization and recovery of vehicles
[0008] The invention patent with the application number of 200810057390.0 "a power battery-supercapacitor hybrid system for electric vehicles" provides a power battery-supercapacitor hybrid system, which use

Method used

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  • Hybrid power vehicle using composite power supply power system
  • Hybrid power vehicle using composite power supply power system
  • Hybrid power vehicle using composite power supply power system

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Such as figure 1 As shown, the structure of a hybrid electric vehicle using a composite power system includes a nickel metal hydride battery 1, a supercapacitor module 2, an engine 3, a DC / AC module 4, a gearbox 5, a clutch 6, a motor 7, and a power converter 8.

[0029] Among them, the supercapacitor module 2 is composed of 150 supercapacitor monomers (such as 2.7V and 3000F supercapacitor monomers produced by Maxwell in the United States) in series, and the module specifications are 405V and 20F. Engine 3 adopts gasoline internal combustion engine, also can use diesel internal combustion engine. The motor 7 is a switched reluctance motor or a permanent magnet synchronous motor. The nickel metal hydride battery 1 used is a metal hydride nickel power battery, and its specification is 336V, 40Ah.

[0030] Specifically, when the car is started, the motor is in the motor mode. Under the action of the power control system, the connection between the power battery 1 and t...

Embodiment 2

[0039] Such as figure 2 as shown, figure 2 and figure 1 The main difference is that the power battery is replaced by the lead-acid battery21 and the Ni-MH battery1. So far, China is the largest producer of lead-acid power batteries in the world. In the application of electric vehicle batteries, the number of lead-acid power batteries used in my country is the largest. , the cost is lower than power batteries, lead-acid batteries have no memory effect, less environmental pollution, less polluting components, good recyclability, and are currently widely used. Its control strategy is the same as that of Embodiment 1.

Embodiment 3

[0041] Such as image 3 As shown, the power battery adopts a lithium-ion battery 22, and the specific energy, service life and high-current charging and discharging performance of the lithium-ion battery 22 are higher than that of a lead-acid power battery. Its control strategy is the same as that of embodiment 1 and embodiment 2, and due to the characteristics of lithium ion itself, the application effect is better than that of embodiment 2, but the lithium ion battery is relatively expensive.

[0042] The method of this embodiment is used to test on the 306 road hybrid electric bus in Changchun City, and its normal fuel consumption per hundred kilometers is 21~28L diesel oil. After using the hybrid power system and solution of the present invention, the fuel consumption per hundred kilometers is reduced to 17-23L diesel, the energy recovery rate can reach about 23%.

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Abstract

The invention belongs to the technical field of hybrid power vehicles, and in particular relates to a hybrid power vehicle using a power battery-ultracapacitor module composite power supply power system. The power system consists of a composite power supply system, an electric motor and an engine; the composite power supply system consists of an ultracapacitor module, a power battery, a power converter and a power supply control system; the power converter is connected with the ultracapacitor module and the power battery by adopting a direct current-direct current conversion principle to realize energy transfer between the ultracapacitor module and the power battery; the composite power supply system is connected with the electric motor through a direct current(DC)/alternating current (AC) module; the ultracapacitor module is formed by connecting 100 to 200 ultracapacitor single bodies in series; and the power supply control system adopts a sensor to acquire various state quantity at present through a controller area network (CAN) bus transmission signal and transmits the acquired values to a control unit to process, and the control unit provides a hybrid power solution for the vehicle according to different acquired values and the requirement of the whole vehicle.

Description

technical field [0001] The invention belongs to the technical field of hybrid electric vehicles, and in particular relates to a hybrid electric vehicle using a power battery-supercapacitor module composite power supply power system. Background technique [0002] Energy problems in the world today are becoming increasingly prominent, and people are looking for various solutions to develop new energy and improve energy utilization. The hybrid electric vehicle industry is in the ascendant, and it has the characteristics of energy saving, environmental protection and high efficiency, and has been widely concerned and highly valued. Among them, the power system is the core of hybrid electric vehicles. Improving the energy utilization rate of the power system, prolonging its service life, energy saving and environmental protection are the core focus of our attention. [0003] my country's existing hybrid electric vehicles and corresponding schemes generally adopt the method of pu...

Claims

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Application Information

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IPC IPC(8): B60K6/28B60K6/32B60K6/42
CPCY02T90/34Y02T10/6278Y02T10/62Y02T90/40
Inventor 李骏韩炜李川孙焕丽赵洪辉刘建康
Owner CHINA FIRST AUTOMOBILE
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