Motor control method and system for electric automobile

• Main Author: THE INVENTOR HAS WAIVED THE RIGHT TO BE MENTIONED
• Format: Patent
• Language: Chinese; English
• Published: 30.06.2017
• Subjects: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; PERFORMING OPERATIONS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TRANSPORTING; VEHICLES IN GENERAL

The invention provides a motor control method and a motor control system for an electric automobile. The method comprises the steps of collecting voltage of a power battery through three voltage sampling circuits; and comparing three collected output voltages of the power battery, determining an output voltage sampling value with relatively high sampling result accuracy according to the comparison result as an output voltage value of the power battery and providing a finished automobile control system with the output voltage value, so that the accuracy of the sampling result of the output voltage of the power battery is ensured to ensure smooth running of the automobile. 本申请提供种电动汽车电机控制方法和系统，通过三个电压采样电路对动力电池电压进行采集，通过将采集到的三个动力电池的输出电压采样值相互比较，依据比较结果确定出采样结果精准性较高的输出电压采样值作为动力电池的输出电压值，并提供给整车控制系统，保证了动力电池输出电压采样结果的准确性，进而保证了车辆的平稳行驶。