The invention relates to the field of automobile control, in particular to a rotary transformer decoding system which comprises a timing excitation unit, a signal conditioning unit, an analog-to-digital conversion unit and a signal processing unit. The invention also comprises a method for generating a pulse width modulation signal and a synchronization signal by a timing excitation unit. The signal conditioning unit generates an excitation analog signal according to the pulse width modulation signal, inputs the excitation analog signal to the rotary transformer, receives an analog feedback signal, converts the analog feedback signal into a digital feedback signal after conditioning, and finally completes digital high-pass filtering and digital synchronization processing by the signal processing unit. And the rotation speed and angle of the rotary transformer are obtained by using the improved Luenberger observer. Based on optimization and integration of existing hardware resources in stock equipment, accurate calculation of the speed and the angle of the rotary transformer can be achieved only by slightly modifying a peripheral circuit, the research and development cost and the production cost can be remarkably reduced, and the requirements for real-time performance, accuracy and stability of a decoding algorithm are met.
本发明涉及汽车控制领域,特别是一种旋转变压器解码系统,包含定时激励单元、信号调理单元、模数转换单元和信号处理单元。本发明还包含方法,由定时激励单元生成脉冲宽度调制信号和同步信号。信号调理单元根据脉冲宽度调制信号生成激励模拟信号输入到旋转变压器,并接收模拟反馈信号,调理后由模数转换单元转换为数字反馈信号,最后由信号处理单元完成数字高通滤波、数字同步处理,并利用改进型龙伯格观测器得到旋转变压器的旋转速度和角度。本发明基于存量设备中现有的硬件资源优化整合,仅在外围电路上稍作修改,即可做到对旋转变压器速度和角度的精准计算,能显著降低研发成本和生产成本,又满足解码算法的实时性、准确性和稳定性要求。
Rotary transformer decoding system and decoding method
一种旋转变压器解码系统和解码方法
02.08.2024
Patent
Elektronische Ressource
Chinesisch
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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