Energy management system and method for electric automobile

A technology for electric vehicles and energy management, which is applied in the direction of electric vehicles, vehicle energy storage, and capacitor traction. It can solve problems such as control, low efficiency of composite power supply, and inability to distribute battery and supercapacitor discharge power, so as to increase discharge Current and discharge time, improve fuel economy, reduce the effect of discharge time

Active Publication Date: 2016-03-23
BEIJING INSTITUTE OF TECHNOLOGYGY
View PDF3 Cites 44 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing energy management system of plug-in hybrid electric vehicles cannot reasonably control the distribution of the discharg

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
  • Energy management system and method for electric automobile
  • Energy management system and method for electric automobile
  • Energy management system and method for electric automobile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0062] Attached below Figure 1-7 The energy management system and management method of the electric vehicle of the present invention will be described in detail.

[0063] Such as figure 1 As shown, the energy management system 1 of the electric vehicle of the present invention includes a vehicle speed acquisition and analysis module 11 , a vehicle speed prediction module 12 and a strategy control calculation module 13 . Preferably, the vehicle speed acquisition and analysis module 11, the vehicle speed prediction module 12 and the policy control calculation module 13 are integrated in the same controller, so as to facilitate data transmission and processing.

[0064] The vehicle speed acquisition and analysis module 11 is connected with the vehicle speed sensor 2 and receives the vehicle speed information of the electric vehicle detected by the vehicle speed sensor 2 in real time, and the vehicle speed acquisition and analysis module 11 records the received vehicle speed inf...

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 relates to the field of energy management of electric automobiles, and provides an energy management method for an electric automobile, so that the running cost of the hybrid power electric automobile is lowered. Automobile speed information of the electric automobile is collected and analyzed, and the running working condition type of the electric automobile is identified through the average automobile speed Va or/and the highest automobile speed Vmax of the electric automobile; the corresponding Markov probability transition torque is selected according to the working condition type, so that the predicted automobile speed Vk+n of the electric automobile is obtained; and according to the predicted automobile speed Vk+n, control commands are sent to an auxiliary power unit (APU) controller and a composite power supply controller through a composite power supply control strategy optimized by the Bellman dynamic programming theory, so that the discharge power of an APU system and a composite power supply is equal to the required power PND of a driving motor, and the power consumption of the composite power supply is the minimum. The energy management method is used for managing energy of the composite power supply of the electric automobile, so that the number of use times of a super-capacitor is increased, the working time of the APU system is shortened, and the fuel economy of the electric automobile is improved.

Description

technical field [0001] The invention relates to the field of energy management of electric vehicles, in particular to an energy management system and management method of electric vehicles. Background technique [0002] With the increasingly serious urban air pollution, more and more attention has been paid to energy-saving and environmentally friendly electric vehicles, and they have gradually become the focus of the development of automobile companies. Although the existing pure electric vehicles can achieve zero emission of air pollutants during driving, the short driving range of pure electric vehicles and the long time spent charging power batteries seriously restrict the promotion of pure electric vehicles. [0003] In order to improve the mileage of electric vehicles and reduce pollution, a plug-in hybrid electric vehicle has been introduced on the market. During driving, when in a traffic jam, the plug-in hybrid electric vehicle can work in a pure electric mode, the...

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): B60L11/00B60L11/18
CPCB60L50/40B60L58/10B60L2240/12Y02T10/70
Inventor 熊瑞张硕何洪文孙逢春
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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