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Self-driving car

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Self-driving car

A self-driving car, also known as an autonomous car (AC), driverless car, robotic car or robo-car, is a car that is capable of operating with reduced or no human input. They are sometimes called robotaxis, though this term refers specifically to self-driving cars operated for a ridesharing company. Self-driving cars are responsible for all driving activities, such as perceiving the environment, monitoring important systems, and controlling the vehicle, which includes navigating from origin to destination.

As of late 2024, no system has achieved full autonomy (SAE Level 5). In December 2020, Waymo was the first to offer rides in self-driving taxis to the public in limited geographic areas (SAE Level 4),[failed verification] and as of April 2024 offers services in Arizona (Phoenix) and California (San Francisco and Los Angeles). In June 2024, after a Waymo self-driving taxi crashed into a utility pole in Phoenix, Arizona, all 672 of its Jaguar I-Pace vehicles were recalled after they were found to have susceptibility to crashing into pole-like items and had their software updated. In July 2021, DeepRoute.ai started offering self-driving taxi rides in Shenzhen, China. Starting in February 2022, Cruise offered self-driving taxi service in San Francisco, but suspended service in 2023. In 2021, Honda was the first manufacturer to sell an SAE Level 3 car, followed by Mercedes-Benz in 2023.

Experiments have been conducted on advanced driver assistance systems (ADAS) since at least the 1920s. The first ADAS system was cruise control, which was invented in 1948 by Ralph Teetor.

Trials began in the 1950s. The first semi-autonomous car was developed in 1977, by Japan's Tsukuba Mechanical Engineering Laboratory. It required specially marked streets that were interpreted by two cameras on the vehicle and an analog computer. The vehicle reached speeds of 30 km/h (19 mph) with the support of an elevated rail.

Carnegie Mellon University's Navlab and ALV semi-autonomous projects launched in the 1980s, funded by the United States' Defense Advanced Research Projects Agency (DARPA) starting in 1984 and Mercedes-Benz and Bundeswehr University Munich's EUREKA Prometheus Project in 1987. By 1985, ALV had reached 31 km/h (19 mph), on two-lane roads. Obstacle avoidance came in 1986, and day and night off-road driving by 1987. In 1995 Navlab 5 completed the first autonomous US coast-to-coast journey. Traveling from Pittsburgh, Pennsylvania and San Diego, California, 98.2% of the trip was autonomous. It completed the trip at an average speed of 63.8 mph (102.7 km/h). Until the second DARPA Grand Challenge in 2005, automated vehicle research in the United States was primarily funded by DARPA, the US Army, and the US Navy, yielding incremental advances in speeds, driving competence, controls, and sensor systems.

The US allocated US$650 million in 1991 for research on the National Automated Highway System, which demonstrated automated driving, combining highway-embedded automation with vehicle technology, and cooperative networking between the vehicles and highway infrastructure. The programme concluded with a successful demonstration in 1997. Partly funded by the National Automated Highway System and DARPA, Navlab drove 4,584 km (2,848 mi) across the US in 1995, 4,501 km (2,797 mi) or 98% autonomously. In 2015, Delphi piloted a Delphi technology-based Audi, over 5,472 km (3,400 mi) through 15 states, 99% autonomously. In 2015, Nevada, Florida, California, Virginia, Michigan, and Washington DC allowed autonomous car testing on public roads.

From 2016 to 2018, the European Commission funded development for connected and automated driving through Coordination Actions CARTRE and SCOUT programs. The Strategic Transport Research and Innovation Agenda (STRIA) Roadmap for Connected and Automated Transport was published in 2019.

In November 2017, Waymo announced testing of autonomous cars without a safety driver. However, an employee was in the car to handle emergencies.

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