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Low Booster Vacuum시의 브레이크 답력 문제 개선을 위한 연구
김종훈(Jonghoon Kim),김용두(Yongdoo Kim),정명구(Myoungkoo Jung) 한국자동차공학회 2010 한국자동차공학회 학술대회 및 전시회 Vol.2010 No.11
Due to emission limit, fuel economy and increased electronic parts, the problem of lowering of brake performance caused by lack of booster vacuum is coming to the fore. To solve this problem, very expensive part like EVP and venturi system is applied because brake performance is directly linked to driver’s safety. The problem is related to high altitude and environment of sale area and the type of transmission. In this paper, it is stated that how booster vacuum is created and how booster vacuum level is changed according to engine and environment condition. And I will define the poor brake performance caused by lack of vacuum and discuss about validation method and process of brake vacuum performance development.