Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Safe Adaptive Headlight Controller with Symmetric Angle Sensor Compensator Using Steering-swivel Angle Lookup Table

조향각-회전각 룩업테이블을 이용한 대칭형 각도센서 보상기를 가지는 안전한 적응형 전조등 제어기의 설계

  • Youn, Jiae (School of Electronics Engineering, Kyungpook National University) ;
  • An, Joonghyun (School of Electronics Engineering, Kyungpook National University) ;
  • Yin, Meng Di (School of Electronics Engineering, Kyungpook National University) ;
  • Cho, Jeonghun (School of Electronics Engineering, Kyungpook National University) ;
  • Park, Daejin (School of Electronics Engineering, Kyungpook National University)
  • Received : 2015.10.15
  • Accepted : 2015.11.02
  • Published : 2016.01.01
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Abstract

AFLS (Adaptive front lighting system) is being applied to improve safety in driving automotive at night. Safe embedded system design for controlling head-lamps is required to improve noise robust ECU hardware and software simultaneously by considering safety requirement of hardware-dependent software under severe environmental noise. In this paper, we propose an adaptive headlight controller with a newly-designed symmetric angle sensor compensator, especially based on the proposed steering-swivel angle lookup table to determine whether the current controlling target is safe. The proposed system includes an additional backup hardware to compare the system status and provides safe swivel-angle management using a controlling algorithm based on the pre-defined lookup table (LUT), which is a symmetric mapping relationship between the requested steering angle and expected swivel angle target. The implemented system model shows that the proposed architecture effectively detects abnormal situations and restores safe status of controlling the light-angle in AFLS operations under severe noisy environment.

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References

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