Sensitivity analysis of the hybrid electrical vehicle power system parameters

Sensitivity analysis of the hybrid electrical vehicle design parameters is very important for optimum design of the whole vehicle performance. In this paper according to the hybrid electrical vehicle characteristics and based on the simulation model of whole vehicle performance three sensitivity computing methods of power system parameters were discussed. Through instance analysis and comparison the sensitivity which was defined as the rate of the relative change of dependent variable to the relative change of independent variable was in accordance with the practical applications of hybrid electrical vehicle and this sensitivity computing method has practical engineering application value.