防抱死制动系统外文翻译(编辑修改稿)

防抱死制动系统外文翻译(编辑修改稿)内容摘要：

t for cars and 8 percent for pickups and SUVs, but they have no effect on fatal crash Leonard Evans, a researcher with General Motors, reported that antilockequipped cars were less likely to rearend other vehicles but more likely to have other vehicles rearend The result was little effect on overall crash risk. In a study conducted for auto manufacturers, Failure Analysis Associates reported a beneficial effect of antilocks on nonfatal crashes but no effect on fatal Why aren39。 t car antilocks reducing crashes as expected? No one knows for sure why their test performance has not translated into a substantial reduction in realworld crashes. A possible reason is that the average motorist rarely experiences total loss of vehicle control, which antilocks are designed to prevent. There also is evidence that many car owners do not know how to use antilock brakes effectively. A 1994 Institute survey of drivers with antilockequipped cars found that more than 50 percent in North Carolina and 40 percent in Wisconsin incorrectly thought they should pump the Are motorcycle antilock braking systems (ABS) effective at reducing crashes? Yes. Results from recent studies by the Institute and HLDI pared crash rates for motorcycles equipped with optional ABS against the same models without the option. The rate of fatal crashes per 10,000 registered vehicle years was 37 percent lower for motorcycles equipped with optional ABS than for those same motorcycles without ABS. In crashes of all severities, the frequency at which collision claims were filed was 22 percent lower for the ABS ,11 Based on these findings, the Institute in April 2020 petitioned the National Highway Traffic Safety Administration to require manufacturers to equip all new motorcycles with this technology Are antilocks a new idea? Are they widely available? The idea of antilocks has been around for years. They first were used on airplanes in the 1950s. A rearwheel system was developed for the 1969 Ford Thunderbird, and the 1971 Chrysler Imperial had fourwheel antilocks. Modern antilocks were first introduced on 1985 models. By the 1987 model year, they were standard or optional on about 30 domestic and foreign car models. Availability soared to 90 models the next year. In the 2020 model year, antilocks were on about 89 percent of all new cars sold and 99 percent of light Are antilocks required on big truck rigs? In March 1995, the National Highway Traffic Safety Administration issued a rule requiring antilock brakes for heavy trucks, tractors, trailers, and buses. All new truck tractors were required to have antilocks after March 1, 1997, and they were mandatory on new airbraked trailers and singleunit trucks and buses after March 1, 1998. New singleunit trucks and buses with hydraulic brakes had to be equipped with antilocks after March 1, 1999. This was not th。