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상용차량의 연비향상을 위한 신개념 스티어링 시스템 개발
박수보(Soobo Park),문성진(Sungjin Mun),김종민(Jongmin Kim) 한국자동차공학회 2012 한국자동차공학회 학술대회 및 전시회 Vol.2012 No.11
To reduce fuel consumption and carbon dioxide of the vehicle, Motor Driven Power Steering system or Electro Hydaulic Power Steering system is generally adopted in passenger vehicle. Both systems can eliminate the P/S pump driven by engine-pulley of the conventional power steering system. However in most of commercial vehicle these systems are not applied. Because each steering system is lack of steering capacity to apply singly to commercial vehicle of high gross vehicle weight. To resolve the capacity problem, this paper proposed a new concept of steering composed of EHPS motor pump and column mounted MDPS unit and ball-nut steering gearbox for commercial vehicle fuel saving. This hybrid Motor Driven Power Steering system, so called, can meet steering capacity without several change of mass-produced electric steering in passenger vehicle, and can also reduce the fuel consumtion in commercial vehicle.