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

Range-extending electric vehicle energy management method and system capable of achieving on-line self-regulation

An energy management and electric vehicle technology, applied in electric vehicles, electric vehicle charging technology, vehicle energy storage, etc., can solve the problem that the power output distribution relationship between batteries and fuel cells cannot be optimal, the energy management algorithm is invalid, and the power loss cannot be achieved Minimize and other problems, achieve good engineering practical value and improve accuracy

Inactive Publication Date: 2014-01-15
TONGJI UNIV
View PDF5 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the fixed control rules formulated by the off-line method are always used, the distribution relationship between the power output of the battery and the fuel cell will not be optimal, and the power loss at each point will not be minimized, and there will be a large difference compared with the actual situation, or even May cause energy management algorithms to fail

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
  • Range-extending electric vehicle energy management method and system capable of achieving on-line self-regulation
  • Range-extending electric vehicle energy management method and system capable of achieving on-line self-regulation
  • Range-extending electric vehicle energy management method and system capable of achieving on-line self-regulation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] An online self-adjustable extended-range electric vehicle energy management method is characterized in that it comprises the following steps:

[0033] (1) When the real vehicle is running, the vehicle controller VMS at the control end measures the corresponding energy source parameters under different SOC parameter values. Measure the hydrogen inlet flow of the fuel cell and the residual flow after the reaction, and measure the stack output voltage and load current of the fuel cell with a multimeter;

[0034] (2) According to the energy source parameters, the charging and discharging efficiency of the battery and the discharge efficiency of the fuel cell change with the power, combined with the calculation method of the minimum power loss in the power system of the extended-range electric vehicle, the online update of the energy manage...

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 a range-extending electric vehicle energy management method and system capable of achieving on-line self-regulation. The range-extending electric vehicle energy management method includes the first step that a control end vehicle controller VMS measures corresponding energy source parameters under different SOC parameter values in the real vehicle driving process, the second step that according to the energy source parameters, the condition that energy source charge and discharge efficiency changes along with power is obtained, and according to a minimum power loss calculation method of a power system of a range-extending electric vehicle and by using a BP neural network fitting method, an energy management control rule is fitted and regulated so as to achieve on-line updating of the energy management control rule, and the third step that the VMS combines with the energy management control rule to control the power output distribution of a hybrid power system in real time according to the SOC parameters of the hybrid power system and vehicle demand power. Compared with the prior art, the range-extending electric vehicle energy management method and system improve the accuracy of electric vehicle energy management control and the fuel economy of the hybrid power system, and have good engineering practical value.

Description

technical field [0001] The invention relates to the technical field of energy saving of environmentally friendly vehicles, in particular to an energy management method and system for an extended-range electric vehicle that can be self-adjusted online and based on the minimum power loss. Background technique [0002] With its good economy and environmental protection, electric vehicles have become the main trend of future automobile development. At present, the research and development directions of electric vehicles are roughly divided into three categories: pure electric vehicles (Electric Vehicle, EV), hybrid electric vehicles (Hybrid Electric Vehicle, HEV) and fuel cell electric vehicles (Fuel Cell Electric Vehicle, FCEV). Judging from the current technological development trend, pure electric vehicles have the advantages of diversified energy sources and simple structure, but due to the constraints of battery performance, there are problems such as long charging time and...

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
Patent Type & Authority Applications(China)
IPC IPC(8): B60L11/18B60L15/38
CPCY02T10/7044Y02T10/7005Y02T90/16Y02T10/70
Inventor 宋珂姜蕴珈章桐
Owner TONGJI UNIV
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