Pdf automating instrument panel head impact simulation. Learn vocabulary, terms, and more with flashcards, games, and other study tools. This standard specifies requirements to afford impact protection for occupants. Early design validation of vehicle interiors for fmvss 201. 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. Eaglezorb friable and semirecoverable polyurethane foam ea systems are designed to protect vehicle occupants in a collision event. 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. The purpose of this impact compliance test was to determine. Development and characterization of new headliner material to. 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. Federal motor vehicle safety standards flashcards quizlet.
Impact zone and targets typical inputs from an oem may, 2009 international automotive components proprietary and. The forehead impact zone of the headform is determined according to the procedure specified in a through f. A head impact in the vehicle interior is broken down into 2 large areas. 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. 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. Impact zone and targets typical inputs from an oem may, 2009. Finite element analysis of head impact according to extended fmvss 201 t. Evaluation of fmvss 214 side impact protection for light. Finite element analysis of head impact according to extended. With the aid of the finite element method, head impact analyses are conducted with reference to various energyabsorbing components.
Both regulations stipulate requirements concerning the maximum head acceleration or the hic in impacts on interior parts. The advantage of using a rotating piston is a constant acceleration and therefore a higher speed accuracy than with a linear driven pendulum. Figure 2 side view of ip impact zone setup figure 3 head impact zone map in plan. Fmvss 214 side impact protection specifies performance requirements for the protection of occupants in side impact crashes, in order to reduce the risk of serious and fatal injury to occupants. However, a surface area that has been contacted pursuant to an impact test need not meet further requirements contained in s5.
The fmvss 201 upper interior compliance test sponsored by the national highway traffic safety administration nhtsa was conducted under contract dtnh2211d00246. Fmvss 201u testing vehicle targeting using both manual and. Basically, various problemsolving approaches are pos. The advantage of using a rotating piston is a constant acceleration and therefore a higher speed accuracy than with a. Position the forehead impact zone in contact with the selected apillar target at.
Overview ihit tools upper interior targets locater instrument panel targets locater contactable robustness points and 12. The purpose of this test was to evaluate upper interior head impact protection performance of a 2015 subaru outback. Interior parts such as door panels, pillar finishers, headliner, and additional energy absorbing components, are designed more and more by. Evaluation of fmvss 214 side impact protection for light trucks.
This paper investigates the advantages and disadvantages of various types of these knee impact simulations. Evaluation of the 19992003 head impact upgrade of fmvss no. Evaluation of the 19992003 head impact upgrade of fmvss. Head impact criteria hic the head injury criteria hic threshold for this effort leverages the performance criterion used in the automotive. Fmvss test summary and estimated costs prepared may 16, 2009. Fmvss 201u testing vehicle targeting using both manual.
In addition to dashboards, fmvss 201 also covers sun visors covered by adr 11, seatbacks for rear seat passengers covered by adr 3 and armrests covered indirectly in adr 42 no. Cae methods for simulating fmvss 201 interior head impact. 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. A design methodology for interior components to comply with fmvss201 head impact requirement. Federal motor vehicle safety standard number 201 fmvss no. Occupant protection in interior impact upper interior head impact protection appendix b. Full text of safety compliance testing for fmvss 201. This standard applies to mpvs, trucks and buses with a gvwr or 10,000 lbs. 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. Upper interior head impact protection, tp201u01, 1998 3 u. Target points, zone, approach angles, impactor headform positioning in the fea model. 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.
Internationally there are two important regulations regarding the design of interiors, such as cockpits, roof and door liners. Early design validation of vehicle interiors for fmvss 201 using. Finite element analysis of head impact according to. Free motion headform means a test device which conforms to the specifications of part 572, subpart l of this chapter. Rear impact fmvss 223 rear impact guards fmvss 224 rear impact protection rollover fmvss 201 occupant protection in interior impact fmvss 208 occupant crash protection fmvss 216 roof crush resistance head rests fmvss 202 head restraints roof crush fmvss 216 roof crush resistance. Hicd for any target location impacted on a given vehicle cannot. Validation of the ftarup free motion headform finite element model as a predictive tool for ihi is shown. Any contactable surface of the vehicle within any zone specified in s5.
Tests were conducted on march 1617, 2010 on a 2010 chevrolet equinox mpv. Standards fmvss that must be met by vehicles manufactured for sale in the united states. This paper discusses how the fmvss 201 regulation requires that interior components in upper compartment of a passenger vehicle pass a head impact test using a free moving head fmh model with a hicd limit. The united states federal motor vehicle safety standard fmvss 201, head impact protection, formed the basis of adr 21 when it was prepared in the late 1960s. Within the fmh approach angle limits specified in standard no. Speed was increased until complete intrusion through the thickness of the samples was obtained. Contractors shall maintain the entire vehicle compliance testing area, test. The test procedure fmvss 201 1 was established to increase protection from head injury in crashes. Fmvss 201 occupant protection in interior impact fmvss 202 head restraints fmvss 203 impact protection for the driver from the steering control system. This standard applies to passenger cars and to multipurpose passenger vehicles, trucks, and buses with a gvwr of 4,536 kilograms or less, except that the requirements of s6 do not apply to buses.
Energy management foam ea eaglezorb polyurethane foam. The test procedure requires that a part 572 subpart l, freemotion headform. With years of experience helping companies bring in vehicles from overseas and ensuring their compliance with fmvss federal motor vehicle safety systems, nhtsa national highway traffic safety administration, and dot department of transportation us fleet services is the right company to perform the engineering or testing required to make your vehicle. The intent of this regulation is to increase the level of occupant protection in head impacts with vehicle upper interior structures.
Example visual dss ihit tools for integrated fmvss 201 simulation 6. Standard 201 regarding upper interior head impact fmvss201u. To reduce the occupant injuries during this situation nhtsa established new safety regulation fmvss 201, which focuses mainly on head impact on interior parts of the automobile1. 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. Guide for vehicle manufacturers to use in filing out test specification forms. Hicd values and it is assumed that mounted warfighters are. Owing to their high stiffnesses and their shape, the pillars of the vehicle necessitate a greater deformation depth than other interior components in. Passive safety simulation is a wellestablished tool in the development process of automobiles at. This final rule incorporates a dynamic pole test into federal motor vehicle safety standard fmvss no. Development and characterization of new headliner material. The system is propelled by a rotating piston powered by nitrogen. Laboratory test procedure for fmvss 201u occupant protection in interior impact, upper interior head impact protection, tp201u01, 1998.
The purpose of this test was to evaluate upper interior head impact protection performance of a 2015 toyota camry. 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. Tests were conducted on october 12, 2015 on a 2015 subaru outback. Federal motor vehicle safety standards fmvss are u. Safety compliance testing for fmvss 201 occupant protection.
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