Vehicle parameter optimization method and device and vehicle

The invention provides a vehicle parameter optimization method and device and a vehicle, and relates to the technical field of commercial vehicle design. The parameter optimization method of the vehicle comprises the steps of determining simulation results of comfort indexes and handling stability indexes of the vehicle under various working conditions by utilizing a first dynamic model of the vehicle; according to the simulation results and the test results of the comfort indexes and the manipulation stability indexes of the vehicle under various working conditions, the first dynamic model is adjusted to obtain a second dynamic model; according to the second dynamical model, parameters to be adjusted are selected from the design parameters of the multiple parts of the vehicle; and according to the collaborative optimization objective function, optimizing the to-be-adjusted parameters to obtain a first parameter value scheme of the vehicle. By means of the method, the efficiency and accuracy of collaborative