Vehicle final assembly line and vehicle final assembly method

A vehicle final assembly line, wherein a vehicle comprises an electric chassis and a vehicle body to be assembled, the vehicle body is configured to be connected to the electric chassis,

• the electric chassis comprises a lower body frame, a suspension system, a steering system, a braking system, and a chassis electronics control system, and an energy storage system, the electric chassis has travel mobility, wherein the energy storage system comprises a battery,
• the electric chassis is provided with an automatic navigation device for use in the vehicle final assembly line,
• the automatic navigation device is configured to control the electric chassis to travel according to a predetermined path stored in a memory of the automatic navigation device by using a navigation magnetic guide strip or positioning code for the automatic navigation device,
• the vehicle final assembly line comprising:
• a vehicle body positioning device, configured to:
• position the vehicle body on the electric chassis to connect the vehicle body to the electric chassis at a marriage station when the automatic navigation device controls the electric chassis to travel to the marriage station according to the predetermined path stored in the memory of the automatic navigation device by using the navigation magnetic guide strip or positioning code for the automatic navigation device;
• wherein the automatic navigation device is further configured to control the vehicle body and the electric chassis that are connected to each other to travel to a plurality of assembly stations in sequence according to the predetermined path stored in the memory of the automatic navigation device by using the navigation magnetic guide strip or positioning code for the automatic navigation device so as to complete assembly of the vehicle at the plurality of assembly stations, and the assembled vehicle leaves the line at an end-of-line station.