A theoretical calculation and analysis method for fuel consumption of hybrid electric vehicles

Abstract

The invention discloses a method for theoretical calculation and analysis of fuel consumption of hybrid electric vehicles, aiming at solving the problem of incomplete theoretical calculation and analysis of fuel consumption of hybrid electric vehicles in the prior art, inability to quickly realize theoretical calculations in the early stage development and design of hybrid electric vehicles, And the lack of fuel consumption micro-details quantitative analysis basis, this method includes the following steps: 1, hybrid electric vehicle fuel consumption theory calculation, including: 1) hybrid electric vehicle system functional modules and energy flow node division; 2) hybrid electric vehicle system Calculation of node energy flow; 3) Calculation of average comprehensive transmission efficiency of hybrid electric vehicle system; 4) Establishment of theoretical calculation model of fuel consumption of hybrid electric vehicles; 2. Analysis of factors affecting fuel consumption of hybrid electric vehicles, including: 1) theoretical fuel consumption increment of hybrid electric vehicles Calculation model; 2) Quantitative analysis of factors affecting fuel consumption of hybrid electric vehicles, to realize detailed quantitative analysis of factors affecting fuel consumption of hybrid electric vehicles.

Description

technical field [0001] The invention relates to a method for theoretical calculation and analysis of fuel consumption of a vehicle, more precisely, the invention relates to a method for theoretical calculation and analysis of fuel consumption of a hybrid vehicle. Background technique [0002] As a transitional vehicle from traditional vehicles to electric vehicles, hybrid vehicles can effectively alleviate the environmental pollution and energy crisis caused by the development of the automobile industry, and have developed rapidly in recent years. Compared with traditional vehicles, hybrid vehicles have added power batteries, motors, generators and other devices, and major changes have taken place in the power system and transmission system of the vehicle, and its fuel consumption test and evaluation have also changed compared with traditional vehicles. [0003] For the fuel consumption analysis of hybrid electric vehicles, the current technology mainly uses simulation analy...

AI Technical Summary

Problems solved by technology

[0006] The present invention aims to solve the problems in the prior art that the theoretical calculation and analysis method of fuel consumption of hybrid electric vehicles is not perfect, the theoretical calculation cannot be quickly realized in the early development and design process of hybrid electric vehicles, and the basis for quantitative analysis of microscopic details of fuel consumption is lacking, and a method is proposed. The theoretical calculation and analysis method of fuel consumption of hybrid electric vehicles can not only calculate the fuel consumption of the hybrid system from the perspective of macro energy, but also quantitatively characterize the impact of different fuel consumption influencing factors on the system fuel consumption from the details

Images