Drivetrain And Control Strategy Design Of Parallel Hybrid Electric Vehicle And Simulation

With the pinch of petroleum resources and deterioration of atmospheric environment, we pay more and more attention to energy sources and environment. Therefore kinds of electric vehicles (EV) are talent showing themselves. But there isn't material breakthrough to heighten the energy storage of battery technology, which greatly restricts the practicability of electric vehicles driven by accumulator. The fuel battery vehicle using hydrogen may be one of the solutions of intending cleanness vehicle, but presently there's great disparity between utility.The HEV syncretizing the merits of traditional internal-combustion engine (ICE, gas engine and diesel engine) vehicle become the approach to alleviate energy sources and environment crisis and feasible transitional project to solve the problem of current energy sources and environment.The HEV equips two sets of power system, namely traditional ICE and electrical engine-accumulator system. By theory and practice, we can prove the design in reason,accurate control HEV can not only greatly improve the fuel consumption and reduce exhaust of motors, but also don't immolate dynamical quality. Whereas the double-power source structure of HEV is too complex, especially needs a set of control system the traditional vehicle doesn't have. The traditional auto theory and design ways are not the same with The HEV. Consequently, it's necessary to develop a suit of self-contained design and control methods of HEV to support the products develop of HEV.The hybrid drive system design includes two pivotal problems: structure parameter matching design and control strategy design. The rationality of design relates whether can satisfy the demands of the dynamical quality and improve the fuel consumption and exhaust. Referring to the full-vehicle parameter and request of dynamical quality of the existing general vehicle SC7130 and aiming at a structure type of PHV, designs the main structure parameters and revises these parameters after considering the composing of system's mass, and then designs two general kinds of control strategies of energy distribute—The Max SOC of Battery Strategy and The Fuzzy Logic Control Strategy, and provides a control strategy of regeneration of PHV.Computer simulation can shorten development cycle, reduce development cost and improve development efficiency. The paper adopts the reverse type modeling methods to build the simulation model of PHV, and carries out simulation calculation of designed PHV model based on the following four typical cycle,FTP75 city,FTP75 freeway,ECE and US06,acquires the results of acceleration time of vehicle, max grade,oil consume per hundred kilometer of each circular working condition,points of engine,change of battery SOC, which proves the fuel consumption of the designed PHV of this paper has obvious advancement, based on ensuring dynamical quality , and proves the rationality of the PH system design. The study of this paper has referenced effect on other structure type design of hybrid dynamical system.