Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

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
View PDF11 Cites 19 Cited by
  • 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 uses power batteries in series to boost DC / DC conversion After the inverter is connected in parallel with the super capacitor to provide power for the motor, and at the same time, a bidirectional DC / DC converter and a 24V power battery are added. This method can absorb a certain amount of braking feedback energy, but there is no specific description of the power of the super capacitor group. There is no guarantee that the vehicle can obtain enough energy from the supercapacitor under various road conditions, and there is no proposal to release electric energy from the supercapacitor with too much power

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • 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
Comparison scheme
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%.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com