Optimization Design Of Dynamic System Of Small Electric Driver-training Cars Based On Ground

With the increase of the per capita car ownership, driver training industry is also a sceneof prosperity. Because driver-training cars in the training venues of driving schools arechronically in the low-speed conditions, such as low level condition and idle condition, whichcan make the engine always work in high fuel consumption and high pollution area, leading tofuel waste and emissions seriously. This not only increases the training costs of the drivingtraining institutions, but also it deviates from the national policy of energy conservation andemissions reduction. Electric cars get the favor of many driving schools as electric cars canwork in road with zero emissions, no pollution, low noise and high efficiency. Therefore, ithas certain practical significance that we research and develop the electric driver-training carsbased on ground, and it plays a role in promoting the energy conservation of transportationindustry.This paper relies on Department of Transportation of Shanxi Province “small pureelectric driver-training cars’ development research” project (09-32K) and Xi’an Science andTechnology Bureau “small pure electric driver-training cars’ dynamic system matching andoptimization design” project (CX1249-4). By the structure and test results of the frist roundsmall pure electric driver-training car which has been restructured, the paper analyses theproblems in theory including inadequate driving range(just60km or so), too high temperaturerise of the motor and the connection of transmission system. Aim at the shortage of existingelectric driver-training cars, the paper completes the match design of dynamic system of anew electric Santana GLS driver-training car, including the motor selection and parametermatching, selection of the type and capacity of dynamic battery. The paper restructures thedynamic system based on Santana to complete the design of the motor and transmission linksuite, the design of motor cooling system, the layout design of electric driver-training cardynamic system and the construction of a new round of electric driver-training car. The paperadopts ADVISOR that is electric vehicle specialized simulation software to establish themodel of electric driver-training car of which dynamic system has been optimized. On thebasis of it, the paper performs dynamic performance simulation of the electric driver-trainingcar. The simulation results show that the highest speed can reach51.5km/h, the maximumgradability is15%when the speed is8.4km/h. And in the CYC_NYCCOMP (New York citycycle) conditions, the driving range can reach to85.76km. All of these can comply with thedesign requirements and the results show adopted optimal design scheme of dynamic systemis reasonable and effective.