Technical report evaluating the 19992003 head impact. A head impact in the vehicle interior is broken down into 2 large areas. The fmvss 201 upper interior compliance test sponsored by the national highway traffic safety administration nhtsa was conducted under contract dtnh2211d 00246. Cae methods for simulating fmvss 201 interior head impact. Energy management foam ea eaglezorb polyurethane foam. The advantage of using a rotating piston is a constant acceleration and therefore a higher speed accuracy than with a linear driven pendulum. The purpose of this head impact compliance test was to determine whether the subject vehicle, a 2011 kia optima lx, meets the performance requirements of fmvss 201, occupant protection in interior impact upper interior head impact protection. Meeting these three standards are critical to your personal safety in the event of an auto accident.
Details of modelling the behaviour of plastic trim under impact conditions are included, and an efficient method of setting up the many load cases is described. On august 18, 1995, the national highway traffic safety administration nhtsa issued a final rule august 1995 amending federal motor vehicle safety standard fmvss no. Automating instrument panel head impact simulation. Theoretical relationship of hic d to crush space for fmvss. Design development of energy absorbing ribs for meeting fmvss. Upper interior head impact protection, tp201u01, 1998 3 u. The purpose of this test was to evaluate upper interior head impact protection performance of a 2015 subaru outback. Automobile manufactures has to satisfy this regulation which includes head impact protection on interior parts such as apillar, roof, side rails, bpillar, to satisfy this. Tests were conducted on june 67, 20 on a 20 audi q5 hybrid, manufactured by audi ag. This paper discusses and proposes a design methodology for automotive interior components to ensure that they comply with fmvss 201 head impact requirements.
Head impact criteria hic the head injury criteria hic threshold for this effort leverages the performance criterion used in the automotive. Pdf automating instrument panel head impact simulation. Fmvss 201p interior head impact pole fmvss 201u interior head impact upper fmvss 202a head impact. Joe lemmon fmvss 201 head impact development specialist at chrysler greater detroit area 42 connections. The measures are aimed at absorbing the kine tic energy of an impacting occupant head by providing for suitable interior trimmings in such a manner that the resul ting head accelerations are reduced, thus lowering the head injury criterion to less than. The performance test requirements of fmvss 201 limit the force allowed when a dummy headform impacts locations. Hic test results before and after the 19992003 head impact. Jan 20, 2017 head impact test with betaseal 1527 full version 38mb.
The purpose of this test was to evaluate upper interior head impact protection performance of a 2015 toyota camry. For the us legislation requirement fmvss 201 u, continental uses a bia facility for positioning the free motion headform fmh within vehicle interiors. A design methodology for interior components to comply with. Internationally there are two important regulations regarding the design of interiors, such as cockpits, roof and door liners. Iat experts had developped tools and processes for handling this complex issue. The purpose of this head impact compliance test was to determine whether the subject vehicle, a 2011 hyundai elantra gls m t, meets the performanc e requirements of fmvss 201, occupant protection in interior impact upper interior head impact protection. Fmvss 201 safety regulation stipulates that the head injury criterion, hic d should be less than when a fmh is impacted at a speed of 15 mph. Introduction the free motion headform fmh used in the fmvss the test procedure fmvss 201 1 was established to increase protection from head injury in crashes. Read online cae methods for simulating fmvss 201 interior head impact book pdf free download link book now. Effectiveness of energyabsorbing materials without headprotection air bags. Head impact on ip upper interior head impact frontal impact upfront virtual computer aided engineering capabilities may, 2009 12.
The purpose of this head impact compliance test was to determine whether the subject vehicle, a 20 audi q5 hybrid, meets the performance requirements of fmvss 201, occupant protection in interior impact upper interior head impact protection. This standard applies to mpvs, trucks and buses with a gvwr or 10,000 lbs. Finite element analysis of head impact according to extended. Tests were conducted on october 12, 2015 on a 2015 subaru outback. The system is propelled by a rotating piston powered by nitrogen. Evaluation of the 19992003 head impact upgrade of fmvss no. This final rule incorporates a dynamic pole test into federal motor vehicle safety standard fmvss no. Structural performance with energy absorbing capability to prevent head injury is now a significant addition to these requirement. Subpart b federal motor vehicle safety standards section 571. Hicd values and it is assumed that mounted warfighters are. Public meetings national highway traffic safety administration. The purpose of federal motor vehicle safety standard fmvss no. Yoshinori noritake toyota motor corp copyright 1997 society. Eaglezorb friable and semirecoverable polyurethane foam ea systems are designed to protect vehicle occupants in a collision event.
Pendulum head impact test machinehodogayagiken corporation. Introduction recent revisions to the federal motor vehicle safety standard fmvss 201 have had a significant impact on the design and engineering of upper interior trim components of. Department of transportation, national highway traffic safety administration. Fmvss 201, occupant protection in interior impact upper interior head impact protection, requires passenger cars, and trucks, buses and multipurpose passenger vehicles ltvs with a gross vehicle weight rating gvwr of 4,536 kilograms or less, except that the requirements of s6 do not apply to buses with a gvwr of 3,860. Yoshinori noritake toyota motor corp copyright 1997. Download cae methods for simulating fmvss 201 interior head impact book pdf free download link or read online here in pdf. The purpose of this impact compliance test was to determine. Aries launcher collection has been deisgned to perform impact tests for research, development and certification according to different. Headform finite element model as a predictive tool for. Federal motor vehicle safety standard number 201 fmvss no. Interior parts such as door panels, pillar finishers, headliner, and additional energy absorbing components, are designed more and more by increasing reliance. This head impact compliance test is part of the fmvss 201 occupant protection in interior impact test program sponsored by the national highway traffic safety administration nhtsa under contract no. Design development of energy absorbing ribs for meeting. The morestringent fmvss 201 requirements have made both oems and material suppliers consider new design approaches and.
An analytical study of system variables for meeting fmvss 201. Head impact test with betaseal 1527 full version 38mb youtube. An analytical study of system variables for meeting fmvss 201 head impact requirements q zhou. Validation of the ftarup free motion headform finite element model as a predictive tool for ihi is shown. The purpose of federal motor vehicle safety standard fmvss 201 occupant protection in interior impact is to reduce occupants risk of head injury in crashes.
Revisions to the fmvss 201 head impact legislation have had a significant impact on the design and engineering of upper interior trim components of cars and light trucks. Tests were conducted on march 2428, 2011 on a 2011 hyundai elantra gls mt. Full text of safety compliance testing for fmvss 201. Technical report evaluating the 19992003 head impact upgrade. It establishes requirements for the use of energyabsorbing materials on the interior components such as instrument panels, seat backs, interior doors, armrests and sun visors. Seat back head restraint instrument panel 3 impacts the selected impact areas on the test vehicle appeared to comply with the performance requirements of fmvss 201 with the exception of the interior compartment door, located in the center of the instrument panel of the vehicle tested, that did not. Example visual dss ihit tools for integrated fmvss 201 simulation 6. Overview ihit tools upper interior targets locater instrument panel targets locater contactable robustness points and 12.
Fmvss federal motor vehicle safety standards youtube. Subtitle b other regulations relating to transportation continued chapter v national highway traffic safety administration, department of transportation. The intent of this regulation is to increase the level of occupant protection in head impacts with vehicle upper interior structures. Both regulations stipulate requirements concerning the maximum head acceleration or the hic in impacts on interior parts. The challenge in fmvss 201 simulations lies in the complex design of interior parts and in the large number of load cases. The test procedure requires that a part 572 subpart l, freemotion headform. Federal register federal motor vehicle safety standards. On the striking side of the vehicle, place an impact reference line at the intersection of the vehicle exterior and a transverse vertical plane passing through the center of gravity of the head of the dummy seated in accordance with s8. Fmvss 201 specifies a finite set of impact locations and applies to passenger vehicles of a specified year range and with a gross vehicle weight rating less than. Interior parts such as door panels, pillar finishers, headliner, and additional energy absorbing components, are designed more and more by. The extended federal motor vehicle safety standard no. The purpose of this test was to evaluate upper interior head impact protection. Evaluation of the 19992003 head impact upgrade of fmvss.
Joe lemmon fmvss 201 head impact development specialist. Tests were conducted on march 31april 1, 2011 on a 2011 kia optima lx. Structural performance with energy absorbing capability to prevent head injury is. It then fires this headform accurately against defined positions at defined angles. At the last meeting, nhtsa said they expected to publish the final rule regarding upper interior head impact requirements, including minimum distances, new definitions, and test procedures for new doorframes and vertical seat belt mounting structures, in august 2003. Owing to their high stiffnesses and their shape, the pillars of the vehicle necessitate a greater deformation depth than other interior components in the event of a head impact. Introduction recent revisions to the federal motor vehicle safety standard fmvss 201 have had a significant impact on the design and engineering of upper interior trim components of cars and light trucks. Hic test results before and after the 19992003 head impact upgrade of fmvss 201 the 19992003 head impact upgrade of fmvss 201 federal motor vehicle safety standard fmvss 201 occupant protection in interior impact specifies requirements to afford impact protection for occupants. Safety compliance testing for fmvss 201 occupant protection. Development and characterization of new headliner material.
The purpose of this head impact compliance test was to determine whether the subject vehicle, a 2010 chevrolet equinox mpv, met the performance requirements of fmvss 201, occupant protection in interior impact upper interior head impact protection. This paper describes progress in cae techniques for the simulation of interior head impact ihi tests to fmvss 201. The fmvss 201 upper interior compliance test sponsored by the national highway traffic safety administration nhtsa was conducted under contract dtnh2211d00246. Finite element analysis of head impact according to. Basically, various problemsolving approaches are pos. Tests were conducted on march 1617, 2010 on a 2010 chevrolet equinox mpv. With respect to these legislative demands, all design work is done virtually. In a workshop exemplary head impact locations in a vehicle interior and impact. Part 571 federal motor vehicle safety standards subpart b federal motor vehicle safety standards section 571. All books are in clear copy here, and all files are secure so dont worry about it.
The head impact protection provisions of standard no. Hic test results before and after the 19992003 head. Early design validation of vehicle interiors for fmvss 201. Locate the point point 21 on the vehicle interior at the intersection of the horizontal plane passing through the highest point of the forward door opening and a transverse vertical plane plane 32 tangent to the rearmost edge of the forward door, as viewed laterally with the adjacent door open. Federal motor vehicle safety standards fmvss are u. The fe analysis results indicate the rib cartridge system is able to meet the fmvss 201 requirements. To meet the test, vehicle manufacturers will need to assure head and improved chest protection in side crashes. Aries launcher collection has been deisgned to perform impact tests for research, development and certification according to different regulations worldwide, either over complete. Automobile manufactures has to satisfy this regulation which includes head impact protection on interior parts such as apillar, roof, side rails, bpillar, to satisfy this regulation requires certain procedures and methodology. The acceleration of the ball head is measured with two accelaration sensors in the impactor.