Super capacitor-based electric automobile hybrid power control system

A technology of supercapacitor and hybrid power, which is applied in the field of hybrid control system of electric vehicles based on supercapacitor, to achieve the effects of saving energy, enhancing the driving process and controlling accurately

Inactive Publication Date: 2011-05-25
RES INST OF XIAN JIAOTONG UNIV & SUZHOU
View PDF7 Cites 62 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this design adds a switching device, which can control the discharge current at both ends of the battery, it cannot control the charging current, and the control accuracy is not high.
[0009]In addition, because the

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
  • Super capacitor-based electric automobile hybrid power control system
  • Super capacitor-based electric automobile hybrid power control system
  • Super capacitor-based electric automobile hybrid power control system

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0030] Example: such as figure 1 The shown hybrid power control system for electric vehicles based on super capacitors uses a dual DC / DC converter structure to combine batteries and super capacitors. It mainly includes: super capacitor 1, power battery 2, motor drive control device 5, motor 7 , The first bidirectional DC / DC converter 3, the second bidirectional DC / DC converter 4, the on-board measurement unit 6 and the battery capacitance energy management unit 8. The connection relationship is: the super capacitor 1 is connected to the motor drive control device 5 via the first two-way DC / DC converter 3, the power battery 2 is connected to the motor drive control device 5 via the second two-way DC / DC converter 4, and the motor drive control The output end of the device 5 is connected to the motor 7. The vehicle-mounted measurement unit 6 is connected to the motor 7 to collect the torque, speed, and current signals of the motor; the battery capacitor energy management unit 8 i...

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 discloses a super capacitor-based electric automobile hybrid power control system. The system comprises a super capacitor, a power storage battery, a motor, a motor driving control device, a vehicle-mounted measuring unit, a first bidirectional direct current (DC)/DC converter and a second bidirectional DC/DC converter, wherein the motor driving control device is connected with the motor; the vehicle-mounted measuring unit is connected with the motor driving control device through a controller area network (CAN) bus; the first bidirectional DC/DC converter is connected between the super capacitor and the motor driving control device; and the second bidirectional DC/DC converter is connected between the power storage battery and the motor driving control device. Through the system, the super capacitor provides high-power current when an electric automobile is started and accelerated and climbs, so that the power performance of the entire automobile is enhanced; instant heavy current generated by a generator is quickly stored during braking; the braking feedback energy is absorbed; the energy is saved; and the cyclic service life of the storage battery is prolonged. By using the system, the power performance and the economy of the electric vehicle are improved, the storage battery is protected, and the stability of the system is enhanced.

Description

technical field [0001] The invention relates to the field of power devices of electric vehicles, relates to a hybrid power system composed of supercapacitors and accumulators for electric vehicles, and in particular to a hybrid control system for electric vehicles based on supercapacitors. Background technique [0002] In recent years, with the increasingly serious energy crisis and environmental problems, the fuel unsustainability and high pollution of traditional internal combustion engine vehicles have attracted more and more attention. Due to its advantages of energy saving, environmental protection and high energy conversion efficiency, electric vehicles have been highly valued by the industry and strongly supported by government departments. At present, an important reason restricting the rapid development of electric vehicles is the short driving range, and the weakness lies in the power system. How to improve the discharge energy efficiency and energy storage utiliz...

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): B60L11/00H02J7/00H02J15/00
CPCY02T10/7022Y02T10/7216Y02T10/70Y02T10/72
Inventor 侯哲曹秉刚李建朋
Owner RES INST OF XIAN JIAOTONG UNIV & SUZHOU
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap