Adjustment and calibration method of electric power steering system, and device and storage medium

• Main Authors: LUO LANG, XU KUANLIN, ZHANG LEI, SHAO WENBIN, ZHU LIANBANG
• Format: Patent
• Language: Chinese; English
• Published: 24.03.2020
• Subjects: CONTROLLING; MEASURING; PHYSICS; REGULATING; SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

The invention discloses an adjustment and calibration method of an electric power steering system. The method comprises the following steps: obtaining various to-be-fitted data points composed of input torque and output torque corresponding to the input torque; completing fitting operation according to each type of to-be-fitted data points and the corresponding fitting function, and obtaining control parameters corresponding to different fitting functions; and determining a power-assisted curve according to the control parameters, and adjusting the electric power-assisted steering system according to the power-assisted curve. The invention further discloses an electric power steering device and a computer readable storage medium. By optimizing a power-assisted curve at a single vehicle speed, the electric power-assisted steering system is light in steering at a low speed and steady in steering at a high speed, and the performance of the electric power-assisted steering system is improved. 本发明公开了一种电动助力转向系统的调校方