타이어 슬립과 동반경 변화를 고려한 구동력 측정과 분석

There are certain values for traction force and durability to achieve appropriate object when a vehicle is designed. The values become a standard to estimate performance of manufactured vehicle. After manufacturing, testing a vehicle whether it meets the designed standard is necessary. On this study, it is suggested a method of detail measurement and analysis of instant power generation and transfer. Brake power is acquired from indicated power generated by combustion on except pumping loss, alternator driving force loss, and engine friction loss. And traction force is acquired from the brake power after considering engine inertia, torque convert loss, drive train friction loss at the end. Also, it is explained the effects of tire slip affected by dynamic radius and vehicle speed, and traction on traction force decrement, especially when a vehicle is tested in the chassis dynamometer.