| It cannot be necessary to develop with the energy saving and low emission car to solve the conflict between economic development and environmental pollution. Electric vehicles as the most research direction of the value in the 21 st century. Under the limitations of the infrastructure and technical conditions, compared with the pure electric vehicles and fuel cell vehicles, to develop the hybrid electric vehicle is more suitable, and it becomes one of the most current industrialization and market prospects.Based on the comprehensive analysis of the series hybrid electric vehicle, parallel and parallel-series type, and combining with the characteristics of urban road conditions, finally determines the city passenger car to use the parallel-series hybrid electric vehicle. By analyzing the working principle of the planetary gear mechanism, and the control strategy, the author used the control strategy which is optimal work curve of engine combine with the battery SOC logic threshold. The Changan-Suzuki--Tianyu SX4 as the design prototype, and combine the characteristics of the driving cycle of ChongQing, finally decide the index of the power performance. The design of the powertrain parameter matching process: The planetary gear mechanismâ†' Engineâ†'Motorâ†'Generatorâ†'Drive trainâ†'Battery.Base on the ADVISOR 2002, in order to research the perfect car, the article need to use secondary researching for the simulation vehicle and parts, and used the experimental data to research the driving cycle of ChongQing, and put forward the secondary researching process of the certain driving cycles. Finally, compared with the simulation result of the power performance between the hybrid electric vehicle and the prototype car, and compared with the result of the fuel economy between the drive cycle of CQ and American UDDS. Results show that the method of matching powertrain parameters and at the certain driving cycle to design the hybrid electric vehicle is reasonable. |
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