GPS-based road and vehicle use information acquisition method

The invention relates to a GPS-based road and vehicle use information acquisition method. GPS equipment is used for measuring the slope information I, the current engine torque value T and the current engine rotating speed, and is used for acquiring the current gear transmission speed ratio ig, the vehicle speed value U and the acceleration magnitude du/dt; the current vehicle weight G is calculated and the calculated vehicle weight G is sent to a remote enterprise monitoring platform; designers can carry out strength improvement design according to the vehicle required by a client in the environment for meeting the normal reliable use of the vehicle in the environment; the GPS equipment is used for acquiring the countershaft rotating speed omega1, the countershaft rotating speed omega2 during braking ending and the air pressure value P0 of the whole vehicle; the friction coefficient f of a transmission brake is calculated, the GPS equipment sends the calculated friction coefficient f to the remote enterprise monitoring platform, and therefore, the strength of the transmission brake is optimized by technicians, and the using reliability of the transmission brake under warranty is met.