Conference Name:6th China-Japan International Conference on Mechatronics (CJCM 2010). Conference Address: Zhengjiang, PEOPLES R CHINA. Time:SEP 10-12, 2010.For the modeled engine, the soft AVL-BOOST is applied to do the single-dimensional cycling simulation and calculation. And then the engine performance after assembling the improving limiter (its diameter is 20mm) is analyzed. According to the calculation and analysis, the torque and pneumatic efficiency are largely affected by limiter, the maximum torque and pneumatic efficiency decreases 20 percents and 30 percents respectively. The limiter not only improves the engine's fuel performance, but also reduces its power performance
