Vehicle transverse control method and system and vehicle

The invention relates to the technical field of vehicle control, and provides a vehicle transverse control method and system and a vehicle, and the method comprises the steps: obtaining the real-time transverse position deviation and the real-time transverse direction deviation of the vehicle; determining a lateral direction deviation compensation value of the vehicle based on the real-time lateral position deviation and a preset expected lateral position deviation; based on the transverse direction deviation compensation value and the real-time transverse direction deviation, the transverse regulation and control quantity of the vehicle is determined; and performing transverse control on the vehicle based on the transverse regulation quantity. Transverse control of the vehicle is achieved in a cascade control mode, the anti-interference performance and stability of the control process are enhanced, and the problem that in the prior art, the dependency on high-performance computing resources is high in the pr