FMVSS 571.204 steering control rearward displacement
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ID： |
A1302F0893484AADAFB5DBACA7AC5672 |
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文件大小(MB)： |
0.04 |
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页数： |
2 |
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文件格式： |
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日期： |
2008-8-25 |
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购买： |
文本摘录（文本识别可能有误，但文件阅览显示及打印正常，pdf文件可进行文字搜索定位）：
550,§ 571.204 49 CFR Ch. V (10–1–05 Edition),S5.1 Except as provided in this paragraph,the steering control system of,any vehicle to which this standard applies,shall be impacted in accordance,with S5.1(a). However, the steering control,system of any such vehicle manufactured,on or before August 31, 1996,may be impacted in accordance with,S5.1(b).,(a) When the steering control system,is impacted by a body block in accordance,with SAE Recommended Practice,J944 JUN80 Steering Control System—,Passenger Car—Laboratory Test Procedure,at a relative velocity of 24 km/h,the impact force developed on the,chest of the body block transmitted to,the steering control system shall not,exceed 11,120 N, except for intervals,whose cumulative duration is not more,than 3 milliseconds.,(b) When the steering control system,is impacted in accordance with Society,of Automotive Engineers Recommended,Practice J944, ‘‘Steering,Wheel Assembly Laboratory Test Procedure,’’,December 1965, or an approved,equivalent, at a relative velocity of 24,km/h, the impact force developed on,the chest of the body block transmitted,to the steering control system,shall not exceed 11,120 N, except for intervals,whose cumulative duration is,not more than 3 milliseconds.,S5.2 The steering control system,shall be so constructed that no components,or attachments, including horn,actuating mechanisms and trim hardware,can catch the driver’s clothing or,jewelry during normal driving maneuvers.,NOTE: The term jewelry refers to watches,rings, and bracelets without loosely attached,or dangling members.,[36 FR 22902, Dec. 2, 1971, as amended at 44,FR 68475, Nov. 29, 1979; 47 FR 47842, Oct. 28,1982; 58 FR 26527, May 4, 1993; 58 FR 63304,Dec. 1, 1993; 63 FR 28935, May 27, 1998; 63 FR,51003, Sept. 24, 1998],§ 571.204 Standard No. 204; Steering,control rearward displacement.,S1. Purpose and scope. This standard,specifies requirements limiting the,rearward displacement of the steering,control into the passenger compartment,to reduce the likelihood of chest,neck, or head injury.,S2. Application. This standard applies,to passenger cars and to multipurpose,passenger vehicles, trucks, and buses.,However, it does not apply to walk-in,vans.,S3. Definitions.,Steering column means a structural,housing that surrounds a steering,shaft.,Steering shaft means a component,that transmits steering torque from,the steering wheel to the steering gear.,S4 Requirements.,S4.1 Vehicles manufactured before,September 1, 1991. When a passenger car,or a truck, bus, or multipurpose passenger,vehicle with a gross vehicle,weight rating of 10,000 pounds or less,and an unloaded vehicle weight of 4,000,pounds or less is tested under the conditions,of S5 in a 30 mile per hour perpendicular,impact into a fixed collision,barrier, the upper end of the steering,column and shaft in the vehicle shall,not be displaced more than 5 inches in,a horizontal rearward direction parallel,to the longitudinal axis of the vehicle.,The amount of displacement,shall be measured relative to an undisturbed,point on the vehicle and shall,represent the maximum dynamic,movement of the upper end of the,steering column and shaft during the,crash test.,S4.2 Vehicles manufactured on or after,September 1, 1991. When a passenger car,or a truck, bus or multipurpose passenger,vehicle with a gross vehicle,weight rating of 4,536 kg or less and an,unloaded vehicle weight of 2,495 kg or,less is tested under the conditions of S5,in a 48 km/h perpendicular impact into,a fixed collision barrier, the upper end,of the steering column and shaft in the,vehicle shall not be displaced more,than 127 mm in a horizontal rearward,direction parallel to the longitudinal,axis of the vehicle. The amount of displacement,shall be measured relative,to an undisturbed point on the vehicle,and shall represent the maximum dynamic,movement of the upper end of,the steering column and shaft during,the crash test.,S5. Test conditions. The requirements,of S4 shall be met when the vehicle,is tested in accordance with the,following conditions.,S5.1 The vehicle, including test devices,and instrumentation, is loaded to,its unloaded vehicle weight.,VerDate Aug<31>2005 11:50 Nov 02, 2005 Jkt 205212 PO 00000 Frm 00560 Fmt 8010 Sfmt 8010 Y:\SGML\205212.XXX 205212,551,Nat’l Highway Traffic Safety Admin., DOT § 571.205,S5.2 Adjustable steering controls,are adjusted so that a tilting steering,wheel hub is at the geometric center of,the locus it describes when it is moved,through its full range of driving positions.,A telescoping steering control is,set at the adjustment position midway,between the forwardmost and,rearwardmost position.,S5.3 Co……
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