Vehicle torque coefficient distribution method and device

• Main Authors: GUO HONGJIANG, YAO LIANG, CUI JINLONG, LAI RIFEI
• Format: Patent
• Language: Chinese; English
• Published: 28.12.2018
• Subjects: ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; PERFORMING OPERATIONS; TRANSPORTING; VEHICLES IN GENERAL

A vehicle torque coefficient distribution method include determining a longitudinal force estimate value of a vehicle front axle and a longitudinal force estimate value of a rear axle according to atorque and a rotational speed of a vehicle drive axle, determining a longitudinal force estimate value of a vehicle front axle and a longitudinal force estimate value of a rear axle, and determining alongitudinal force estimate value of that vehicle front axle according to the torque and the rotational speed of the vehicle drive axle. Determining a slip rate estimate of a vehicle front axle and aslip rate estimate of a vehicle rear axle; Calculating a longitudinal driving stiffness estimation value of the vehicle front axle according to the longitudinal force estimation value of the vehiclefront axle and the slip rate estimation value of the vehicle front axle; The longitudinal driving stiffness of the rear axle of the vehicle is calculated according to the longitudinal force of the rear axle and the slip rate of t