Product Code:SAE J2431
Title:The Effects of Front-Mounted Accessories on Air Bag Sensors and Crashworthiness
Issuing Committee:Body Exterior Committeee
Scope:Almost all light trucks now are being manufactured with at least a driver side air bag and all will have dual air bags by 1998. The driving forces behind this feature are occupant safety, federal regulations, and competition in thie industry. Along with the booming popularity of pickups and SUVs, they are commonly accessorized with a wide variety of products. Many acessories for four-wheel drives in particular are mounted on the front of the vehicle. These products include grille/brush guards, winches, snow plows, replacement bumpers, bicycle carriers, etc. Concerns have arisen over the compatibility of these accessories with the vehicle's air bag system.The vehicle manufacuters are concerned because of their huge investment in design and crash test verificaiton of the complete vehicle system and keen awareness of the federal regulations. The crushability of the front bumper and supporting structure are key elements in the system, so alterations to that area become logical concerns.The accessory manufacturers, dealers, and installers are concerned because the very core of their business could be at risk. The unknowns can range from fear of setting off an airbag while working on the vehicle to liability issues in an inury accident situation. In some cases, the installation of the product is contrary to recommendations from the vehicle manufacturer and may void the warranty.The ultimate customers (end users) are in a unique situation and are not being well served in some situations. Their dilemma stems from the conflict between what a manufacturer is willing to certify for sale and what the customer needs and expectations are. Their needs in vehicle equipment can vary widely from making a living to recreational lifestyle issues to simplify the desire to individualize. te precedent for front-mounted accessories is well established. The customers for both the vehicle and the equipment are there, so finding ways for them to coexist safely is beneficial to all.

标准名称：	线纹计量器具检定系统
英文名称：	Verification Schemen of Line Measuring Instruments
中标分类：	综合 >> 计量 >> 长度计量
发布部门：	国家计量局
发布日期：	1987-12-22
实施日期：	1988-10-01
首发日期：
作废日期：
起草单位：	中国计量科学研究院
起草人：	翟富华
出版社：	中国计量出版社
出版日期：	1988-10-01
页数：	8页

本检定系统适用于长度专业、工业用线值计量器具以及大地测量方面使用的线纹计量器具。

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