Technical Paper
Multiple Forgot Factor Recursive Least Squares Method for Mass Estimation of Heavy Commercial Vehicles
2024-04-09
2024-01-2762
Heavy commercial vehicles have large variations in load and high centroid positions, so it is particularly important to obtain timely and accurate load information during driving. If the load information can be accurately obtained and the braking force of each axle can be distributed on this basis, the braking performance and safety of the entire vehicle can be improved. The real-time engine torque required by the Hill Start Assist system needs to be calculated based on vehicle mass and road gradient to reduce the amount of fuel injected by the engine during hill start. In an electronic parking brake system, the calculation of the ground braking force requires obtaining the vehicle mass. The more accurate the mass, the better the braking control effect. In the electronic stability control system for vehicle bodies, the stability factor is affected by the quality of the entire vehicle, and its reliability will affect the judgment of oversteer and understeer.