System Integration And Design Development For Plug-in Hybrid Electric Vehicle Of Junjie FRV

Energy shortage and environment worsening are two big challenges to the word. In the area of automobile, most of the big auto companies are developing new energy vehicle. Plug-in Hybrid Electric Vehicle (PHEV) has the zero emission function like the pure electric vehicle, and the driving distance of PHEV is not be restricted with the capacity of battery like the conventional HEV. So it's been considered as one important development direction of the new energy vehicle.This paper is based on the A platform plug-in HEV project of Brilliance auto Group, carried out the relative development. Based on the vehicle performance object, the technical solution and main parameters of key components are defined. The electric structure and CAN communication protocol are defined too. The development flow of the vehicle management system is selected.The main content of the paper is as follows,1. Advantage analysis of the plug-in HEV and classification of HEV. The definition and advantage description of plug-in HEV is represented. Plug-in HEV is one important development direction of new energy vehicle. The classification of HEV (serial HEV, parallel HEV, parallel-series HEV) and the character are introduced.2. Definition of the drive-train and key parameters. Based on the relative boundary conditions (vehicle performance target, base vehicle information), the drive-train system is defined. By using theory computation and simulation analysis, the main parameters are determined.3. Proposal design of general layout and cooling system. Because of the restriction of boundary conditions, the proposal design of general layout and cooling system is a difficult task. Depending on the experience and relative information, carrying out repeated check, the system proposal is designed finally.4. Changing proposal of chassis. Based on the result of general layout, the vehicle weight and axle weight distribution are estimated. Using this as the input information, the chassis system (including steering system, brake system and suspension system) is checked and analyzed. The changing proposal is designed.5. Vehicle management system proposal. The several control algorithms are discussed, the using control algorithm is defined. The structure and CAN communication technical proposal are designed. The development flow is defined.This paper can provide input information for the subsequent development work of A platform plug-in HEV project. At the same time the feasibility analysis can accumulate design experience for the Brilliance auto Group, this can help the design and development for the other new energy vehicle project.