Abstract: Disclosed are a method and a system for processing fault information of a decoding chip in a rotary transformer. The method includes: reading data information transmitted by the decoding chip according to a preset period; determining whether the data information includes alarm information; when the data information includes the alarm information, estimating a rotor-position value after an alarm occurs in real time according to a rotational speed in the data information obtained before the alarm occurs; determining whether a difference between a current rotor-position value and the estimated rotor-position value is greater than a fault threshold; and when the difference between the current rotor-position value and the estimated rotor-position value is greater than the fault threshold, controlling a motor using the estimated rotor-position value.
Type:
Grant
Filed:
October 21, 2016
Date of Patent:
April 6, 2021
Assignee:
BEIJING ELECTRIC VEHICLE CO., LTD.
Inventors:
Yi Zheng, Yujun Li, Shengran Xiao, Ronghong Liu