Clock Synchronization for the Controller Area Network using Bit Timing Information CAN Aǧlari için Bit Zamanlamasi Bilgisine Dayali Saat Senkronizasyonu

Arkadas D. E., Akpinar M., SCHMİDT Ş. E., SCHMİDT K. V.

30th Signal Processing and Communications Applications Conference, SIU 2022, Safranbolu, Türkiye, 15 - 18 Mayıs 2022 identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Doi Numarası: 10.1109/siu55565.2022.9864984
  • Basıldığı Şehir: Safranbolu
  • Basıldığı Ülke: Türkiye
  • Anahtar Kelimeler: clock synchronization, controller area network, drift compensation, experimental evaluation
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

Mission-critical distributed automotive applications that communicate on the controller area network (CAN) require synchronized clocks in order to coordinate their actions. Therefore, this paper proposes an original precise clock synchronization method with drift correction for CAN. Different from existing methods that use timestamps, our method is based on the internal bit timing of CAN. The proposed method is implemented and evaluated in software without the need for hardware development thanks to a software-defined CAN controller. The experiments show that the new method surpasses existing methods by achieving clock accuracy below 10 us.