Follow-up calibration method for automobile brush-electric-power-steering assist current characteristics

• Main Authors: HOU XUNBO, LIU YIQING, HAN DAN, ZHAO TAIYANG, CHEN YAN, LUO MINGXU, ZHANG YUZHEN, SHI LUHAO, LI RUIBAI, YANG QIFU, LIN LELE, CAO HUAILIANG, JU PENG, GUO LIMING
• Format: Patent
• Language: Chinese; English
• Published: 23.06.2017
• Subjects: LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS; MOTOR VEHICLES; PERFORMING OPERATIONS; TRAILERS; TRANSPORTING

The invention discloses a follow-up calibration method for the automobile brush-electric-power-steering assist current characteristics. The automobile brush-electric-power-steering assist current characteristics can be matched with automobile related physical parameters, parameter setting of an electronic control unit (for short, ECU) in EPS is adjusted and completed, and the best assist characteristics are output through EPS to meet the requirements of an automobile for the steering performance. Meanwhile, the follow-up calibration method is also suitable for the ECU parameter calibration process in the laboratory state to complete the EPS assist characteristics close to actual-automobile applications, and the calibration workloads of an actual automobile are completed. According to the follow-up calibration method, the EPS assist characteristics are equivalent to the characteristics of assist currents I output by the ECU, a characteristic curve of the assist currents I is calibrated, the driving speed V and