Tracking control system and method for PRT vehicle

The invention belongs to the field of unmanned rail transit, and particularly relates to a tracking control system and method for a PRT vehicle. The control system comprises a positioning information acquisition unit, a vehicle information calculation unit, an offset information calculation unit, a PID (Proportion Integration Differentiation) control unit and a steering actuation unit, the offset information calculation unit is used for calculating the positioning information according to the physical state information; the transverse movement deviation of the vehicle is obtained and sent to the PID control unit; according to the invention, tracking control is carried out on the vehicle by only using a control parameter of the transverse movement deviation (transverse movement amount), so that the vehicle can be ensured not to have a mutually contradictory leverage effect in a tracking driving process, and vehicle oscillation motion caused by control overshoot can be avoided; therefore, the tracking control o