The invention discloses a decoding method and device of a rotary transformer, a computing chip, a vehicle and a medium. The method comprises the following steps: after an excitation reference signal is applied to an excitation winding end of the rotary transformer, respectively sampling a sine output signal and a cosine output signal at two return winding ends of the rotary transformer; respectively performing orthogonal demodulation on the sine output signal and the cosine output signal based on the excitation reference signal to obtain a target sine signal and a target cosine signal which only carry angle information of the rotor of the rotary transformer; and decoding according to the target sinusoidal signal and the target cosine signal to obtain the rotor angle of the rotary transformer. According to the technical scheme of the embodiment of the invention, the phase delay between the output signal and the excitation reference signal can be effectively removed in each dual-path orthogonal demodulation process, the computational logic is simple, the decoding precision is high, and the technical effect of obtaining a high-precision decoding result of the rotary transformer at low cost is achieved.
本发明公开了一种旋转变压器的解码方法、装置、计算芯片、车辆及介质。该方法包括:在旋转变压器的激励绕组端施加激励参考信号后,在旋转变压器的两个返回绕组端分别采样正弦输出信号和余弦输出信号;基于激励参考信号分别对正弦输出信号和余弦输出信号进行正交解调,得到仅携带旋转变压器转子角度信息的目标正弦信号和目标余弦信号;根据目标正弦信号和目标余弦信号,解码得到旋转变压器的转子角度。本发明实施例的技术方案可以在每个双路正交解调的过程中,有效去除输出信号和激励参考信号之间的相位延迟,计算逻辑简单,解码精度高,达到了低代价的获取高精度的旋转变压器解码结果的技术效果。
Decoding method and device of rotary transformer, computing chip, vehicle and medium
旋转变压器的解码方法、装置、计算芯片、车辆及介质
2024-09-06
Patent
Electronic Resource
Chinese
IPC: | G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS , Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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