偶想買車不光是考慮車子是否完美.......而是喜好的問題........
還有重要的一點還是預算........

不知怎的....日本車的型就是不吸引偶.........








hero1hero2 寫到:

.....
有人對於小車的車身結構與安全性有研究的嗎?
可否比較一下目前已上市與即將上市的小車的安全性@@


事實上有狠多單位在做車車安全的研究和測試........
包括把車車撞成廢鐵的撞擊測試...並且分成幾個A或幾顆星的等級.........



/

先前偶在TFC有一篇文提過肥駛他和小車的euro NCAP比較.........
http://www.fiesta.tw/viewtopic.php?t=106&postdays=0&postorder=asc&start=0



但是NCAP新版的報告最好到euro NCAP網站去看............裏面還有詳細的測試過程介紹........可以幫助偶棉了解是怎麼一回事........您就會知道其實汽車廣告商祭出五顆星也沒啥了不起的.......拿到五顆星的不只是亞里斯一台車而已.......而且2002年起euro NCAP還updated一些遊戲規則....



偶想若是汽車的安全性測試.......恐怕也不是只有歐洲EuroNCAP測試單位的報告可以查......人家愛把車車送給你撞爛爛的....何樂而不為?.....
如ANCAP.......JapNCAP...OSA...政府的機構如美國NHTSA(National Highway Traffic Safety Administration)..英國TRL..
各國也有各自的汽車監理單位....汽車安全的研發中心...等等.....

找找看
http://www.nhtsa.dot.gov/cars/testing/ncap/Index2.cfm
http://www.iihs.org/










/

air bags的數量可能會增加安全性....不過多歸多...會不會剛剛好撞到氣囊上?..現在恐怕還需要"smart" air bags..........
進一步的車身安全性能與安全氣囊.......
可以從下面的網站去尋找.......
http://www.nhtsa.dot.gov/cars/testing/ncap/airbags/index.html
http://auto.howstuffworks.com/crash-test5.htm



air bag的火藥包圖解...........



ps
小力是說nissan的march嗎?.............


-----



DEPARTMENT OF TRANSPORTATION
National Highway Traffic Safety Administration


49 CFR Parts 571 and 598
[Docket No. NHTSA-2004-17694]
RIN 2127--AJ10


Federal Motor Vehicle Safety Standards;
Side Impact Protection;
Side Impact Phase-In Reporting Requirements





AGENCY: National Highway Traffic Safety Administration (NHTSA), Department of Transportation.


ACTION: Notice of proposed rulemaking (NPRM).


SUMMARY: This NPRM would substantially upgrade the agency痴 side impact protection standard, especially by requiring protection in crashes with narrow objects and protection against head injuries in side impact crashes with both narrow objects and other vehicles.


First, it would upgrade the standard by requiring that all passenger vehicles with a gross vehicle weight rating of 4,536 kilograms (10,000 pounds) or less protect front seat occupants against head, thoracic, abdominal and pelvic injuries in a vehicle-to-pole test simulating a vehicle痴 crashing sideways into narrow fixed objects like telephone poles and trees. To meet the head injury criteria in the pole test, vehicle manufacturers would likely need to install dynamically deploying side head protection systems, such as head air bags or inflatable air curtains that drop down from the roof line above the door frame. Air curtains can reduce head injuries in side crashes of passenger vehicles with poles and trees as well as side impacts from vehicles with high front ends. They also can help reduce partial and full ejections through side windows. Compliance with the pole test would be determined in two test configurations, one using a new, second-generation test dummy representing mid-size adult males and the other using a new test dummy representing small adult females.


Second, this NPRM would upgrade the standard痴 existing vehicle-to-vehicle test that requires protection of front and rear seat occupants against thoracic and pelvic injuries in a test that uses a moving deformable barrier to simulate a moving vehicle痴 being struck in the side by another moving vehicle. This NPRM would upgrade that test by requiring protection against head injuries. It would replace the mid-size male dummy currently used in that test with the new mid-size male dummy mentioned above and require compliance with the head, thoracic and pelvic injury criteria developed for the new dummy. It would also enhance protection for small adult occupants by adding the new small female test dummy mentioned above and requiring compliance with the injury criteria developed for that dummy. Thus, the number of test configurations would increase from one to two.


DATES: You should submit your comments early enough to ensure that Docket Management receives them not later than [INSERT DATE 150 DAYS AFTER DATE OF PUBLICATION IN THE FEDERAL REGISTER].


ADDRESSES: You may submit comments (identified by the DOT DMS Docket Number) by any of the following methods:



  • Web Site: http://dms.dot.gov. Follow the instructions for submitting comments on the DOT electronic docket site.
  • Fax: 1-202-493-2251.
  • Mail: Docket Management Facility; US Department of Transportation, 400 Seventh Street, SW, Nassif Building, Room PL-401, Washington, DC 20590-001.
  • Hand Delivery: Room PL-401 on the plaza level of the Nassif Building, 400 Seventh Street, SW, Washington, DC, between 9 am and 5 pm, Monday through Friday, except Federal Holidays.
  • Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the online instructions for submitting comments.

INSTRUCTIONS: All submissions must include the agency name and docket number or Regulatory Identification Number (RIN) for this rulemaking. For detailed instructions on submitting comments and additional information on the rulemaking process, see the Public Participation heading of the Supplementary Information section of this document. Note that all comments received will be posted without change to http://dms.dot.gov, including any personal information provided. Please see the Privacy Act discussion under the Public Participation heading.


DOCKET: For access to the docket to read background documents or comments received, go to http://dms.dot.gov at any time or to Room PL-401 on the plaza level of the Nassif Building, 400 Seventh Street, SW, Washington, DC, between 9 am and 5 pm, Monday through Friday, except Federal Holidays.


FOR FURTHER INFORMATION CONTACT:


For non-legal issues, you may call Dr. William Fan of the NHTSA Office of Crashworthiness Standards, at 202-366-4922.


For legal issues, you may call Deirdre R. Fujita of the NHTSA Office of Chief Counsel, at 202-366-2992.


You may send mail to these officials at the National Highway Traffic Safety Administration, 400 Seventh St., S.W., Washington, D.C., 20590.




SUPPLEMENTARY INFORMATION:


I. Introduction


II. Executive Summary


III. Safety Problem


IV. Regulatory, Research and Technological Developments・990 to Present



  1. 1990 Simulated Vehicle-to-Vehicle Test佑hest and Pelvic Injury Criteria
  2. 1995 Establishment of Upper Interior Impact Protection Requirements
  3. 1996 First Inflatable Side Impact Protection Systems
  4. 1997 Report to Congress re Possibility of Harmonizing U.S. and European Vehicle-to-Vehicle Tests
  5. 1997 Head Injury Protection Criteria and First Generation Side Impact Test Dummy Capable of Measuring Head Impact Forces
  6. 1998 Pole Test to Evaluate Inflatable Side Impact Head Protection Systems
  7. Grant of 1998 Petition to Upgrade Side Impact Protection Standard
  8. 1997-1999 NHTSA Research re Vehicle-to-Vehicle Test Harmonization
  9. 1999-2000 Report to Congress and Response to Petition re Vehicle-to-Vehicle Test Harmonization
  10. 2000-2003 NHTSA Research re Side Impact Dummies, Injury Criteria, and Crash Tests
  11. Current Status of Second and Next Generation Side Impact Dummies
  12. Industry Efforts to Improve Compatibility in Vehicle-to-Vehicle Crashes

V. Existing Standard


VI. Proposed Vehicle-To-Pole Test Procedures, Dummies and Injury Criteria



  1. Test Procedure

    1. Speed
    2. Angle of Impact
    3. Positioning the Seat and Impact Reference Line

  2. Dummies and Injury Criteria

    1. 50th Percentile Male Dummy (ES-2re)

      1. Background
      2. Injury Criteria
      3. Oblique Pole Tests with ES-2 and ES-2re
      4. Comparing the ES-2re to the SID-H3

    2. 5th Percentile Female Dummy (SID-IIsFRG)

      1. Background
      2. Injury Criteria
      3. Oblique Pole Tests with 5th Percentile Female Dummy

  3. FMVSS No. 201 Pole Test Conditions

VII. Proposed Improvements of Moving Deformable Barrier Test



  1. Replacement of Existing 50th Percentile Male Dummy with ES-2re and Addition of Injury Criteria
  2. Addition of 5th Percentile Female Dummy (SID-IIsFRG) and Injury Criteria

VIII. Other Issues



  1. Struck Door Must Not Separate From Vehicle
  2. Rear Seat
  3. Interaction with Other Side Impact Programs

    1. Out-of-Position Criteria
    2. FMVSS No. 201 Pole Test

  4. Harmonization

IX. Estimated Benefits and Costs of Proposed Pole Test


X. Proposed Leadtime and Phase-in


XI. Rulemaking Analyses and Notices


XII. Public Participation





不管車廠設計功力如何..車身設計基本上是被迫改進的...
樓主問的應該是所謂的"車側防撞鋼樑"..作用是車廠因應車身安全制度..被要求強化車身側面強度...主要目的是保護乘員安全..

/

簡要說明如下..

1990年起..美國聯邦只要求模擬車對車的正面撞擊測試..
之後..測試制度也逐步更新..

所以汽車設計也牽一髮動全身..大家都知道要求愈來愈嚴格(撞擊測試)..所以車身逐步強化勢在必行..車廠沒多少好日子了..
還好汽車科技進步也頗為神速..

到了1997年實施的新汽車裝配制度(New Car Assessment Program)側面撞擊測試 (side impact testing)新規制..所以車廠不得不被迫裝上這種車門橫向防撞鋼樑..否則可能通不過側撞試驗..
(*主要以Crash test dummy撞擊測試假人受傷程度數據..進行各種等級之評估)..

通常由NHTSA(National Highway Traffic Safety Administration)政府機構審理..
http://www.nhtsa.dot.gov/cars/testing/ncap/Index2.cfm

另外有非營利機關IIHS(Insurance Institute for Highway Safety)..搞出更嚴格"偏置"碰撞..及模擬數量日增SUV更高的側面撞擊點..
http://www.iihs.org/

歐洲則有一個機構euro NCAP評估星星數把關..
http://www.euroncap.com/content/safety_ratings/ratings.php?id1=1


另外..車門鎖的設計不同於一般門鎖..主要是在遇側面撞擊時..鎖鉤可以避免被撞開..保護乘客不會因車門撞開而被拋出車外..
通常縱向及橫向都要承受三噸的撞擊測試..
但是在車身設計上即使撞得車身扭曲變形..也要求能開啟車門進行救援..所以這車側防撞鋼樑也會加強這方面的強度..



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