Method for optimizing output torque of motor of electric light truck

• Main Authors: WU HUAPING, WU LISHENG, CHEN BAO
• Format: Patent
• Language: Chinese; English
• Published: 01.08.2023
• 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

The invention discloses a motor output torque optimization method for an electric light truck. An overall framework of a control strategy is established from three parts of motor torque checking, rear axle bearing checking and a torque instruction map. According to the motor torque output, the motor torque output interval is limited, the motor torque output precision is optimized, the motor torque is linearly changed in the output process, on the basis that various driving working conditions are met, the output torque of the motor is refined, and torque output is smoother. The driving requirements of various working conditions can be met, the driving intention requirement of a driver can also be met, meanwhile, all high-pressure components can be protected to work under the allowed working conditions, and the service life of the high-pressure components is prolonged. Moreover, based on the current actual conditions, the method can be implemented to the actual use of the electric light truck, and parameters fo