Adaptive Cruise Control
SécuritéAverage price
500€ - 2000€
Adaptive cruise control, often abbreviated as ACC, is an intelligent evolution of the standard cruise control system. While the latter merely maintains a constant speed predefined by the driver, adaptive cruise control goes a step further by automatically adjusting the vehicle's speed to maintain a safe following distance from the car ahead. Using sensors (radar, lidar, or camera) located at the front of the vehicle, the system detects the presence and speed of other road users in the same lane. If the vehicle ahead slows down, the ACC reduces speed by acting on the accelerator and, if necessary, the brakes. When the lane clears, the system automatically re-accelerates to return to the initial set speed. This technology represents a major advancement in active safety and driving comfort, particularly on highways and in traffic jams. It is one of the pillars of Level 2 semi-autonomous driving systems, significantly reducing the driver's mental workload and helping to smooth traffic flow while decreasing the risk of rear-end collisions.
Benefits
- ✓Significant reduction in driver fatigue on long journeys.
- ✓Improved safety by maintaining a constant distance and preventing collisions.
- ✓Increased driving comfort, particularly in heavy or stop-and-go traffic conditions.
- ✓Optimized fuel consumption thanks to smoother, anticipatory driving.
Learn more
Adaptive Cruise Control: Drive with Peace of Mind
Adaptive Cruise Control, also known by the acronym ACC, is one of the most significant Advanced Driver Assistance Systems (ADAS) innovations in recent years. Much more than a mere comfort gadget, it transforms the driving experience on long journeys and in heavy traffic by providing a substantial gain in safety and peace of mind. It represents a key step toward semi-autonomous driving.
How does Adaptive Cruise Control work?
Unlike a conventional cruise control system, which is limited to maintaining a fixed speed, adaptive cruise control is a proactive system. It uses sensors—most often a radar mounted in the front grille or bumper, sometimes supplemented by a camera located at the top of the windshield. These electronic "eyes" continuously scan the road ahead of the vehicle.
- Detection: The system identifies vehicles in the same lane and precisely measures the distance separating you from them, as well as their relative speed.
- Adaptation: The driver selects a set speed (for example, 130 km/h) and a desired safety distance (often adjustable across several levels: short, medium, long).
- Action: If the lane is clear, the car maintains the set speed. If a slower vehicle is detected, the system automatically reduces the pace by decreasing acceleration or applying light braking to maintain the pre-set safety distance. Once the vehicle ahead accelerates or changes lanes, your car smoothly returns to its set speed.
The different versions: from standard ACC to the Stop & Go function
ACC technology has evolved and comes in several versions. The basic system generally operates above a certain speed (e.g., 30 km/h) and deactivates below it. However, the most modern systems integrate the "Stop & Go" function, also known as "Traffic Jam Assist." This advanced version is capable of handling stop-and-go traffic situations, braking the vehicle to a complete stop, and restarting it automatically (или upon a simple tap of the accelerator) when traffic moves again. This is a major asset for comfort in daily traffic jams.
What are the daily benefits?
The integration of adaptive cruise control offers multiple concrete benefits for the driver.
- Increased safety: By systematically maintaining a safety distance, ACC significantly reduces the risk of rear-end collisions, one of the most frequent causes of accidents on highways. It is often coupled with an Autonomous Emergency Braking (AEB) system for maximum protection.
- Comfort and stress reduction: The driver's mental workload is lightened. They no longer have to constantly manage the accelerator and brake to adapt to the traffic flow. Driving becomes smoother, less jerky, and therefore much less fatiguing, especially over long distances.
- Traffic smoothing: By avoiding sudden braking and unnecessary acceleration, vehicles equipped with ACC help limit the famous "accordion effect" in traffic jams, making overall traffic flow smoother.
- Fuel savings: Smoother, anticipated driving without jolts helps reduce fuel consumption or energy consumption for electric vehicles.
Conclusion: a must-have for the modern car
Adaptive cruise control is no longer reserved for high-end vehicles. It is rapidly democratizing across all segments of the automotive market. By transforming monotonous and stressful journeys into a safer and more relaxing driving experience, it stands out as an essential driving aid. When purchasing a new vehicle, opting for a pack including ACC, ideally with the Stop & Go function, is a wise investment for your safety and daily comfort.
Finitions équipées
311 finition(s) proposent cet équipement
Alfa Romeo Alfa Romeo Junior
Junior Electric (1st generation) (2024-2026)
Alfa Romeo Alfa Romeo Stelvio
Sprint (1st generation - phase 2) (2020-2023)
Alfa Romeo Alfa Romeo Stelvio
Super (1st generation - facelifted phase 2) (2020-2023)
Alfa Romeo Alfa Romeo Tonale
Sprint (1st generation) (2023-2026)
Alfa Romeo Alfa Romeo Tonale
Super (1st generation) (2022-2026)
Audi Audi A3
Business line (8V) (2014-2020)
Audi Audi A3
Design (8Y) (2020-2026)
Audi Audi A4
Business line / Business Executive (facelifted B9) (2019-2023)
Audi Audi A6
Business line (C7) (2014-2018)
Audi Audi Cabriolet
Business Executive (A5 Cabriolet 2nd generation) (2017-2024)
Audi Audi Q3
Business Line / Advanced (2nd generation) (2019-2026)
Audi Audi Q4 e-tron
Executive (1st generation) (2022-2026)
Audi Audi Q5
Business Executive (2nd generation FY) (2017-2024)
Audi Audi Q7
Business Line / Executive (2nd generation) (2017-2024)
Audi Audi Q8
Q8 S line (phase 2 facelifted) (2023-2026)
Audi Audi Q8 e-tron
Extended (1st generation) (2020-2022)
Audi Audi RS Q3
RS Q3 tiptronic Design/Comfort packs (2nd generation) (2019-2026)
Audi Audi RS5
RS5 Coupé facelift (2nd generation) (2020-2024)
Audi Audi RS5
RS5 Tiptronic Comfort Pack (1st generation) (2011-2015)
Audi Audi S3
S3 Sportback (8V Phase 2) (2016-2020)
Associated equipment
Cruise Control
Cruise control, also known as 'cruise control', is an electronic system that automatically maintains a vehicle's speed at a value pre-set by the driver. Once activated via a control usually located on the steering wheel or a dedicated stalk, the system takes control of the accelerator to maintain the chosen speed without the driver needing to keep pressure on the pedal. Particularly appreciated on long highway journeys or roads with constant speed limits, it contributes significantly to reducing driver fatigue and the stress associated with maintaining a legal speed. The system deactivates instantly as soon as the driver presses the brake or clutch pedal, or via a dedicated button, thereby guaranteeing an immediate resumption of control. Initially considered a luxury feature, cruise control has become widely mainstream and is now standard equipment on the majority of new vehicles. It forms the technological foundation upon which more advanced systems, such as adaptive cruise control, have been developed.
Traffic Jam Assist
Traffic Jam Assist is a Level 2 Advanced Driver Assistance System (ADAS) that revolutionizes driving in heavy traffic. It represents a major evolution in active safety systems by merging two key technologies: adaptive cruise control with Stop & Go function (ACC) and Lane Keeping Assist. Designed to operate at low speeds, typically up to 65 km/h (40 mph), this system handles both the longitudinal (acceleration, braking) and lateral (steering) control of the vehicle. Using a front-facing camera and radar sensors, it analyzes the environment, tracks the vehicle ahead, and reads road markings. It thus semi-autonomously manages the following distance, can brake to a complete stop, and automatically resume driving when traffic moves again. Simultaneously, it applies micro-corrections to the steering wheel to keep the vehicle centered in its lane. The primary objective is to relieve the driver of the repetitive and tiring task of stop-and-go driving, drastically reducing stress and the risk of inattention-related collisions, while improving comfort and journey smoothness.
Autonomous Emergency Braking (AEB)
Autonomous Emergency Braking, commonly known by the acronym AEB, is a fundamental active safety system in modern automotive engineering. Classified among Advanced Driver Assistance Systems (ADAS), its mission is to prevent frontal collisions or, failing that, drastically reduce their severity. To achieve this, it relies on a suite of sophisticated sensors—windshield-mounted cameras, grille-integrated radars, and/or LiDARs—that continuously scan the environment ahead of the vehicle. The on-board computer analyzes the data from these sensors in real-time to calculate the distance and relative speed of other vehicles, as well as more vulnerable road users such as pedestrians and cyclists. If the system detects a critical situation where a collision is imminent and the driver shows no reaction (braking or evasive steering), the AEB takes control autonomously and progressively. It first issues visual and audible alerts. If there is no response, it can pre-condition the braking system for maximum effectiveness, then apply partial braking and, as a last resort, full-power emergency braking. Its proven effectiveness has made it an essential criterion for achieving 5 stars in Euro NCAP tests and a mandatory technology on all new vehicle types marketed in Europe since July 2022, in accordance with the GSR 2 regulation.
ACC Stop & Go
Adaptive Cruise Control with Stop & Go (ACC Stop & Go) is an advanced evolution of adaptive cruise control. This Advanced Driver Assistance System (ADAS) does not merely maintain a set speed and a safe following distance from the vehicle ahead; it is also capable of managing the vehicle's complete stopping and restarting phases. Using front-mounted radar sensors and/or a camera, the system continuously analyzes traffic. In the event of a slowdown, it adjusts the speed down to a complete stop if necessary, such as in a traffic jam. When traffic starts moving again, ACC Stop & Go automatically restarts the car (often after a brief tap on the accelerator or a steering wheel command if the stop is prolonged). This Level 2 semi-autonomous driving technology primarily aims to reduce driver fatigue and stress in heavy or stop-and-go traffic conditions. It represents a major advancement in comfort and safety by automating repetitive tasks and maintaining constant vigilance over the immediate driving environment.
Semi-autonomous driving
Semi-autonomous driving, generally classified as Level 2 on the international SAE scale, represents a major advancement in Advanced Driver Assistance Systems (ADAS). It combines several technologies to assist the driver during specific driving phases, primarily on highways or in traffic jams. The system simultaneously manages acceleration, braking, and steering, keeping the vehicle centered in its lane and at a pre-defined safe distance from the vehicle ahead. To achieve this, the car relies on a suite of sensors: cameras to read road markings, radars to detect other road users, and sometimes lidars for more precise 3D mapping of the environment. Unlike fully autonomous driving (Levels 4 and 5), semi-autonomous driving strictly requires constant driver supervision. The driver must remain attentive, with hands on the steering wheel (or in close proximity), and be ready to resume control at any time. It is a valuable aid that reduces mental load and fatigue, but under no circumstances replaces the driver's judgment and responsibility.