• 제목/요약/키워드: Automotive industry

검색결과 1,020건 처리시간 0.029초

철강 압연제품의 제조기술 및 응용 (Manufacturing Technologies and Applications of Steel Strip Products)

  • 권오준
    • 한국소성가공학회:학술대회논문집
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    • 한국소성가공학회 1999년도 제3회 압연심포지엄 논문집 압연기술의 미래개척 (Exploitation of Future Rolling Technologies)
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    • pp.10-21
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    • 1999
  • Recent progress in manufacture of hot and cold rolled steel strip products and their applications were reviewed. The main trend in the technological development has been to meet the customers' requests for quality improvement and cost reduction. The weight reduction to reduce the fuel consumption is the main issue in the automotive industry and, therefore, various steels have been developed to improve formability as well as strength. The steels include super-EDDQ steels, bainitic steels, TRIP steels, etc. In the oil industry, efforts have been focused to improve strength together with either low temperature toughness or HIC/SSCC resistance. The packaging industry is also a highly competitive market, and steel and canmaking companies have worked cooperatively to develop cost-effective canmaking processes as well as high performance steels. This type of cooperation has also been found important in other industries such as the appliance and electronic industries for the benefits of both steelmakers and customers.

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자동차 CALS-ANX를 중심으로

  • 오우진
    • 한국전자거래학회:학술대회논문집
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    • 한국전자거래학회 1999년도 학술대회지 vol.1
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    • pp.301-311
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    • 1999
  • ANX Mission Statement "To provide the automotive industry with a robust, global network infrastructure that enables an emerging set of electronic communication services′

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다극 브레이크 모터의 긴 전류 제어주기 고속영역 제어 (High Speed Control of a Multi-pole Brake Motor Under a Long Current Control Period)

  • 김도군;박홍주;박규성;김선형;이근호
    • 제어로봇시스템학회논문지
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    • 제21권2호
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    • pp.137-144
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    • 2015
  • 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.