| Recent years, we pay more attation to energy and environmental issues. In the city,bus is one of the most important vehicle and it also becomes the principal factor of energy consumption and environmental pollution. In this case, the electric car get ours attention for its energy-saving and emission-reduction. In electric vehicle, EREV is the most glaring, it will be the emphases of development in the future.The paper researches and develops one of the projects, named Muli-Energy Sources Power Assembly Control System, Which is supported by the subjects of a cross-sectional study topic with an enterprise. A power control strategy model for EREV has been set up based on the requisition analysis, the author completed hardware design, software design and Network design plan systemically.Multi-Energy Sources Power Assembly Control System is based on a type of DSP, TMS320F2812. According to controller hardware design plan, which takes full advantage of DSP's internal module and spread its'external bus. The author design the power supply module, A/D module, D/A module, CAN communication module. Lots of anti-jamming measures have been used because of the controller design aimed at high performance and high reliability. These measures can promote DSP controllers'viability in hybrid electricity bus environment. While the software design is based on front-and-back platform, the anthor program the hybrid electricity bus powertrain control strategy in building block design mode.In order to prove the viability of the whole design proposal and the control performance of the DSP controller, the anthor test it on the bench and in the hybrid bus. All test data show that: The vegicle controller has a good stability, vehicle control strategy characterize superior controllability and higher safety. Compared with common urban public transportation, the fuel economy of the EREV increase above 30%, which is inadequate to energy-saving and emission-reduction. |
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