1. Electrical system is divided into two systems according to functions:
(1) power system -- maintenance-free battery, motor, etc.
(2) control and auxiliary system -- disconnection control, accelerator, switch, wire harness, charger, etc.
2. The chassis is divided into four systems according to functions:
(1) transmission system -- clutch, gearbox, universal drive shaft device, drive axle main reducer, differential and half shaft, etc.;
(2) driving system -- plays the role of bond and load bearing.Mainly including the frame, the bridge, the wheel and the suspension and so on;
(3) steering system -- including steering wheel, steering machine and transmission rod, etc.;
(4) braking system -- used for speed control and parking.Including brake and brake control device.
3. Body -- for the driver and passenger.