This paper focuses on the parameter matching of key components and the
improvement of overall vehicle performance for a certain front-wheel drive pure
electric vehicle. Firstly, based on the target performance of the vehicle, the
rated/peak power, speed, and torque of the permanent magnet synchronous drive
motor, as well as the capacity, voltage, and series-parallel scheme of the
LiFePO4 power battery, are systematically calculated. Meanwhile,
the gear ratio of the transmission system is determined based on the dual
constraints of the maximum speed and the maximum gradeability. Subsequently, the
vehicle model is built using AVL Cruise, and the maximum speed, 0-100 Km/h
acceleration time, maximum gradeability, and NEDC range are simulated and
verified under steady-state and transient conditions. The results show that the
maximum speed of the prototype vehicle reaches 139 Km/h, the 0-100 Km/h
acceleration is 7.98 s, the maximum gradeability is 33.2%, the power consumption
per 100 Km is 12.12 KWh, and the range is 485 Km, all of which are superior to
the design indicators. The research verifies the rationality of the proposed
parameter matching scheme and can provide a theoretical basis and engineering
reference for the forward development of the power system of pure electric
vehicles of the same level.