汽车科技
汽車科技
기차과기
QICHE KEJI
2013年
6期
43-48
,共6页
刘乐%付铁强%李孟良%刘建军%赵伟
劉樂%付鐵彊%李孟良%劉建軍%趙偉
류악%부철강%리맹량%류건군%조위
轻型汽车%滑行阻力%海拔%试验
輕型汽車%滑行阻力%海拔%試驗
경형기차%활행조력%해발%시험
light-duty vehicle%coastdown resistance%altitude%experiment
为了研究海拔高度和温度等试验条件变化时汽车滑行阻力的变化规律,并对一种汽车滑行阻力修正方法进行验证,本文对三辆试验车进行了四个海拔高度和四个温度条件下的滑行试验,得出了实测阻力和修正阻力,试验结果表明:文中提到的滑行阻力修正方法能够精确地将0米20℃条件下车辆的滑行阻力修正到不同海拔高度和温度条件下,误差在±5%以内,最大绝对误差可保持在10%以内,且对不同类型车辆都适用,通过该方法的使用,可节省试验成本和时间。
為瞭研究海拔高度和溫度等試驗條件變化時汽車滑行阻力的變化規律,併對一種汽車滑行阻力脩正方法進行驗證,本文對三輛試驗車進行瞭四箇海拔高度和四箇溫度條件下的滑行試驗,得齣瞭實測阻力和脩正阻力,試驗結果錶明:文中提到的滑行阻力脩正方法能夠精確地將0米20℃條件下車輛的滑行阻力脩正到不同海拔高度和溫度條件下,誤差在±5%以內,最大絕對誤差可保持在10%以內,且對不同類型車輛都適用,通過該方法的使用,可節省試驗成本和時間。
위료연구해발고도화온도등시험조건변화시기차활행조력적변화규률,병대일충기차활행조력수정방법진행험증,본문대삼량시험차진행료사개해발고도화사개온도조건하적활행시험,득출료실측조력화수정조력,시험결과표명:문중제도적활행조력수정방법능구정학지장0미20℃조건하차량적활행조력수정도불동해발고도화온도조건하,오차재±5%이내,최대절대오차가보지재10%이내,차대불동류형차량도괄용,통과해방법적사용,가절성시험성본화시간。
In order to study the variation of automotive coastdown resistance at different altitudes and temperatures, and verify the modification method of automotive coastdown resistance. so coastdown tests are conducted for three light-duty vehicles at four altitudes and four temperatures in this paper, then the real coastdown resistance and the modified resistance are obtained, and the results shows that: the modification method of automotive coastdown resistance presented in this paper can modify the automotive coastdown resistance at 0m and 20℃to that at various altitudes and temperatures preciously, with the average error of ±5% and the maximum error of 10%; besides, the modification method can be used for different kinds of vehicles;by using this method the cost and time of automotive test can be saved.