A whole vehicle power distribution control method and system for a fuel cell vehicle

A fuel cell vehicle and fuel cell technology, applied in battery/fuel cell control devices, electric vehicles, vehicle energy storage, etc., can solve problems such as output power fluctuations, fuel cell system life impact, etc., to reduce the overall vehicle and hydrogen The effect of consumption indicators

Active Publication Date: 2019-04-30
CHINA FIRST AUTOMOBILE
View PDF10 Cites 23 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with the other two configurations, the performance of the power system of the full-power fuel cell vehicle has obvious advantages, but during the operation of the vehicle,

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
  • A whole vehicle power distribution control method and system for a fuel cell vehicle
  • A whole vehicle power distribution control method and system for a fuel cell vehicle
  • A whole vehicle power distribution control method and system for a fuel cell vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0056] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0057] figure 1 It is a configuration diagram of a fuel cell vehicle used in the present invention; figure 2 It is a schematic flow chart of the fuel cell vehicle power distribution control method provided by the embodiment of the present invention; image 3 It is a schematic diagram of division of fuel cell power intervals according to the embodiment of the present invention; Figure 4 It is a schematic diagram of fuel cell demand power optimization according to an embodiment of the present invention.

[0058] Such as figure 1 As shown, there are two energy sources in the vehicle system used in the embodiment of the present invention, which are the fuel cell and the power battery respectively. After the fuel cell is boosted by DCDC, it is connected ...

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 provides a whole vehicle power distribution control method for a fuel cell vehicle. The whole vehicle power distribution control method comprises the following steps: determining a driving required torque based on a vehicle speed and the accelerator pedal aperture; determining driving power based on the driving required torque, the motor efficiency and a motor rotating speed; based on a power battery voltage and a power battery current, determining the power battery charging and discharging electric quantity; determining a power battery required power based on the power battery charging and discharging electric quantity and the power battery electric quantity; taking a sum value obtained by adding the driving required power and the power battery required power as the fuel battery required power; optimizing the required power of the fuel cell based on the electric quantity of the power battery and the efficiency curve of the fuel cell system. The invention further providesa whole vehicle power distribution control system of the fuel cell vehicle. On the basis of protecting the power battery, the efficiency of the power battery is maximized, and on the basis of protecting the fuel cell system, a hydrogen consumption index of the whole vehicle is reduced to the maximum extent.

Description

technical field [0001] The invention belongs to the technical field of fuel cell vehicles, and relates to a power distribution control algorithm and system that comprehensively considers the efficiency of fuel cells and power cells, specifically a fuel cell vehicle power distribution control method and system. Background technique [0002] With the aggravation of global environmental pollution and the decline of oil reserves, electric vehicles have gradually entered people's lives. In recent years, electric vehicle technology has achieved rapid development, but according to market feedback, short driving range and long charging time have become the main bottlenecks restricting the promotion of electric vehicles. Therefore, fuel cell vehicles have emerged as the times require. [0003] Fuel cell vehicles mainly use H 2 As the main energy source, it is equipped with Ni-MH battery or super capacitor as auxiliary energy source. During the running of the vehicle, the H in the f...

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): B60L58/10B60L58/40
CPCY02T10/70
Inventor 刘元治宋浩源赵永强郁大嵬程健郭丁伊徐家良
Owner CHINA FIRST AUTOMOBILE
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