There is a linear function between the concentrations of NO?x and BMEP under 2 200 r/min (speed at maximum torque), and there is an exponential function between the two parameters under 3 200 r/min (rated speed).

• 在最大转矩、转速2200r/min工况下,其浓度随负荷的增加呈现线性增加; 在标定转速3200r/min工况下则呈现指数函数的增加。