Early approaches and forward collision avoidance system Early warning systems were attempted as early as the late 1950s. An example is
Cadillac, which developed a prototype vehicle named the
Cadillac Cyclone which used the new radar technology to detect objects in front of the car with the radar sensors mounted inside "nose cones". It was deemed too costly to manufacture. The first modern forward collision avoidance system was patented in 1990 by William L. Kelley. The second modern forward collision avoidance system was demonstrated in 1995 by a team of scientists and engineers at
Hughes Research Laboratories (HRL) in
Malibu, California. The project was funded by
Delco Electronics and was led by HRL physicist Ross D. Olney. The technology was marketed as
Forewarn. The system was radar-based a technology that was readily available at
Hughes Electronics, but not commercially elsewhere. A small custom fabricated radar antenna was developed specifically for this automotive application at 77 GHz. The first production laser adaptive cruise control on a Toyota vehicle was introduced on the
Celsior model (Japan only) in August 1997.
Commercial and regulatory development In 2008, AEB was introduced in the British market. Between 2010 and 2014,
Euro NCAP rewarded various constructors whose system had AEB features. In the early-2000s, the U.S.
National Highway Traffic Safety Administration (NHTSA) studied whether to make frontal collision warning systems and
lane departure warning systems mandatory. In 2011, the European Commission investigated the stimulation of "collision mitigation by braking" systems. Mandatory fitting (extra cost option) of Advanced Emergency Braking Systems in commercial vehicles was scheduled to be implemented on 1 November 2013 for new vehicle types and on 1 November 2015 for all new vehicles in the European Union. According to the "impact assessment", this could prevent around 5,000 fatalities and 50,000 serious injuries per year across the EU. In March 2016, the
National Highway Traffic Safety Administration (NHTSA) and the
Insurance Institute for Highway Safety announced the manufacturers of 99% of U.S. automobiles had agreed to include automatic emergency braking systems as standard on virtually all new cars sold in the U.S. by 2022. In Europe, there was a related agreement about an AEBS or AEB in 2012.
United Nations Economic Commission for Europe (UNECE) has announced that this kind of system will become mandatory for new heavy vehicles starting in 2015. AEBS is regulated by UNECE regulation 131. NHTSA projected that the ensuing accelerated rollout of automatic emergency braking would prevent an estimated 28,000 collisions and 12,000 injuries. , in the United Kingdom, an estimated 1,586,103 vehicles had AEB. This makes AEB available in 4.3% of the British vehicle fleet. ; Australia: }} In April 2020 AEB is: • standard on 66% of new light vehicle models (passenger cars, SUVs and light commercial vehicles) sold in Australia, • 10% on higher grade variants only (AEB not available on base variant) • 6% as option • 16% have no form of AEB ; United States: Since 2015, the NHTSA has recommended AEB for vehicles. , it is not mandatory in the US vehicles. However, in 2016, the NHTSA convinced automobile manufacturers to include AEB in 99% of new cars car sold in the US by 1 September 2022. On 9 June 2021, in Phoenix, USA, a heavy truck going too fast for traffic conditions crashed with seven other vehicles on a motorway, killing four people and hurting nine. ; Japan: In 2017, AEB is one of the most popular forms of ADAS in Japan, in Japan more than 40% of newly manufactured vehicles equipped with some type of ADAS had AEB. In 2018, 84.6% of cars had a kind of AEB in Japan, but the certification goal was not met by each of them.
As a mandatory feature From the fiscal year 2021, in Japan, all new cars should have automatic braking systems to prevent accidents, including with a car or pedestrian but not with cyclists, at speeds defined by three international regulations. In India, autonomous emergency braking system (AEB) could become mandatory on new cars by 2022. In the United States, automakers voluntary committed to releasing automatic emergency braking as a standard feature on all new cars and trucks starting in 2022, to provide AEB three years earlier than through a regulatory process. AEB is set to be mandatory in cars and light trucks by September 2029. In Australia where AEB is not yet mandatory, the federal government has suggested in a Regulation Impact Statement (RIS) that car-to-car and pedestrian AEB should be standard on all new models launched from July 2022 and all new vehicles sold from July 2024 like in the European Union. ==Legal changes applicable from 2025==