Journal of Institute of Control, Robotics and Systems (제어로봇시스템학회논문지)

Institute of Control, Robotics and Systems (제어로봇시스템학회)
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High Speed Control of a Multi-pole Brake Motor Under a Long Current Control Period

다극 브레이크 모터의 긴 전류 제어주기 고속영역 제어

  • 김도군 (국민대학교 자동차공학전문대학원) ;
  • 박홍주 (국민대학교 자동차공학전문대학원) ;
  • 박규성 (국민대학교 자동차공학전문대학원) ;
  • 김선형 (국민대학교 자동차공학전문대학원) ;
  • 이근호 (국민대학교 자동차공학전문대학원)
  • Received : 2014.10.17
  • Accepted : 2014.12.16
  • Published : 2015.02.01
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Abstract

In hybrid or electric vehicles, the hydraulic brake system must be controlled cooperatively with the traction motor for regenerative braking. Recently, a motor driven brake system with a PMSM (Permanent Magnet Synchronous Motor) has replaced conventional vacuum boosters to increase regenerative power. Unlike industry motor controls, additional source codes such as functional safety are essential in automotive applications to meet ISO26262 standards. Therefore, the control logic execution time increases, which also causes an extension of the motor current control period. The increased current control period makes precise motor current control challenging inhigh speed ranges where the motor is driven by high frequency. In this paper, a PWM update strategy and a time delay compensation method are suggested to improve current control and system performance. The proposed methods are experimentally verified.

Keywords

References

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