Optimization of Powertrain in EV

Abstract

The method for preliminary powertrain design is presented in the paper. Performance of the EV is realized by motor torque–speed curve and gear ratio optimization. The typical two-zone mechanical characteristic of a PMSM traction motor is included in the optimization program. The longitudinal vehicle model is considered in the paper. Some examples try to show the calculation possibilities in application to existing vehicles: Tesla Model S and Mini Cooper SE.

Keywords

• electric vehicle
• electromechanical systems
• optimization
• multi-objective optimization
• field weakening
• traction motors