What is adaptive cruise control?

Table Of Content

• Understanding ADAS: Automatic Emergency Braking (AEB)
• Measuring road traffic density: what you need to know
• What does adaptive cruise control do?
• Car Sales Are Speeding Up, But Dealers Still Have Too Much Inventory
• Honda Adaptive Cruise Control (ACC) with Low-Speed Follow
• The TomTom ADAS Map: designed for intelligent cruise control use cases

Hu et al. [26] derived a stability criteria of a platoon of ACC-equipped vehicles with actuator lag and sensor delay. Considering different models with the technology-appropriate assumption, Talebpour and Mahmassani [16] proposed a framework to investigate the impact of the connected and autonomous vehicle on traffic flow stability. Moreover, Davis [25] investigated the impact of mechanical response on string stability of a platoon of ACC-equipped vehicles. Considering the delay, Xing et al. [27], Wang et al. [28] and Besselink and Johansson [29] proposed appropriate control strategies to enhance string stability of ACC-equipped vehicle platoon. Moreover, Li et al. [30] proposed an extended intelligent driver model and analyzed the stability against a small perturbation by use of the linear stability method for the proposed model on a single lane.

Understanding ADAS: Automatic Emergency Braking (AEB)

It senses when that traffic flow slows or stops, reacting to maintain the preset following distance. Like systems available from other automakers, Cadillac’s Super Cruise allows the car to accelerate, steer, and brake without driver intervention on highways. But Cadillac is the only automaker to specifically claim that drivers can take their hands off the wheel. That’s because Cadillac did a thorough job in setting up Super Cruise. Not only does the system rely on an array of cameras, radar, and lidar, but Cadillac also mapped 200,000 miles of highway. Super Cruise also has a driver-facing camera, and will only work if a certain level of driver alertness is maintained.

Measuring road traffic density: what you need to know

Adaptive cruise control allows for the intelligent, reactive adjustment of a vehicle’s speed without the need for human participation. Cruise control is not a substitute for a human driver and will require supervision at every step. If you are using a semi-autonomous system, you will not need to steer but will need to keep at least one hand on the wheel for safety measures. Adaptive cruise control (ACC) is an active safety system that automatically controls the acceleration and braking of a vehicle.

What does adaptive cruise control do?

Heavy, or stop-and-go traffic is not ideal for safely using cruise control. When engaging cruise control on the highway, ensure your lane is clear and there are no vehicles stopping ahead. After turning on cruise control, you’ll need to set your desired speed. Many systems set the cruise control at the current speed, while others require you to manually set one.

EyeSight watches ahead and if it detects traffic is slowing, adaptive cruise control adjusts your speed accordingly to keep your selected distance. Once traffic starts moving faster, it can automatically accelerate back up to your set speed. A speed limiter will limit how fast the driver can accelerate behind the wheel. All modern vehicles contain a standard speed limiter capping speed between 120 mph and 180 mph depending to protect the vehicle’s engine and discourage reckless driving. However, an additional limiter can be added as an option in many European-made cars, as well as Tesla, Ford, and Nissan.

As a result, adaptive cruise control is often referred to as autonomous cruise control. Luxury automakers such as Tesla and Audi are implementing the newest rendition of cruise control on their latest vehicle models – Semi-autonomous Cruise Control. It works largely the same as adaptive cruise control, but assists drivers with lane guidance and steering. There are several variations of semi-autonomous cruise control that include additional convenience features for the driver. By modeling ACC-equipped vehicles’ behavior, the impact of ACC on traffic flow is widely studied [10, 19, 20].

This data is processed by the car’s computer systems to adjust the throttle and apply brakes if necessary, ensuring a safe following distance. “With adaptive cruise control, eyesight can help you stay with the flow of traffic. When you set cruise control, you can select from up to four present following distances.

Automotive Adaptive Cruise Control Market Size to Exceed USD 8.4 billion By 2031, with a Robust CAGR of 5.4 ... - Yahoo Canada Finance

Automotive Adaptive Cruise Control Market Size to Exceed USD 8.4 billion By 2031, with a Robust CAGR of 5.4 ....

Posted: Tue, 16 Jan 2024 08:00:00 GMT [source]

This improvement significantly expanded the continuous operation time of the cruise control function, as automation allowed to control both the acceleration and braking of a vehicle. This allowed the driver to travel for longer distances with their feet off the pedal, even in moderate traffic situations on the motorway. Of course, the need for them to pay attention to the road ahead remained, as cars in front could still brake or suddenly cut in. Cruise control has come a long way from its early days in its quest to assist drivers on the road. When first introduced, it was only found in luxury car models due to its high production cost. As less expensive sensors reached the market, adaptive cruise control is steadily becoming a standard feature in new vehicles today.

A study of 40 drivers by the Insurance Institute for Highway Safety (IIHS) found that they were more likely to speed when equipped with ACC. In this article, we will explain adaptive cruise control and how it works, provide examples of ACC features in ADAS packages, and explain the importance of adaptive cruise control calibration. Initially, Cruise’s driverless autonomous offering will operate only between 10 p.m. But the limits are part of a plan by regulators and the company to prove out the safety and efficacy of its system before deploying it in more locations at additional times. The new operating window already extends its total active time by 1.5 hours as compared to the free driverless test pilot service it was offering between June of last year and the debut of this paid service.

But the automotive industry must get over a few speedbumps first. The key difference between Level 3 and Level 4 automation is that Level 4 vehicles can intervene if things go wrong or there is a system failure. In this sense, these cars do not require human interaction in most circumstances. However, while Audi was developing their marvel of engineering, the regulatory process in the U.S. shifted from federal guidance to state-by-state mandates for autonomous vehicles. So for the time being, the A8L is still classified as a Level 2 vehicle in the United States and will ship without key hardware and software required to achieve Level 3 functionality. In Europe, however, Audi will roll out the full Level 3 A8L with Traffic Jam Pilot (in Germany first).

G.M.'s Cruise Moved Fast in the Driverless Race. It Got Ugly. - The New York Times

G.M.'s Cruise Moved Fast in the Driverless Race. It Got Ugly..

Posted: Fri, 03 Nov 2023 07:00:00 GMT [source]

The benefits of adaptive cruise control make it a worthwhile technology to continue investing in. It provides longitudinal control of a vehicle, such as acceleration and braking. Increasingly, it can be combined with steering assist technology like lane centering for automated lane changes. The longitudinal and lateral control systems working together leads to autonomous driving, the next mobility revolution, which is expected to evolve rapidly over the next decade.

The first ACC system to reach the U.S. market was in the 2001 Lexus LS 430. The "Dynamic Laser Cruise Control System" used a laser-based sensor to estimate traffic distance. None of these systems are close to what one would consider autonomous driving.