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This two-part paper presents the development an ISG diesel hybrid power-train to provide a solution for the city transit buses. The ISG power-train which adopts the ISG parallel configuration which is inserted a thin but powerful motor between the engine and the flywheel is a compact and flexible power-train with high efficiency and sufficient power. The drive demand of Chinese typical city cycle is analyzed and the key componentspsila parameters are deduced using the classic vehicle dynamic equation. The design of permanent magnetic motor and its controller are introduced in details and the system integration is illustrated as well. The control system and the multi-energy strategy that are the key to realize the fuel economy target will be introduced in the part II. The bench test of ISG diesel power-train is conducted to test the maximal performance and to validate the functions of ISG motor.
Date of Conference: 3-5 Sept. 2008