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You will receive an email if there is a reply to your comment, an update to a thread you follow or if a user you follow comments. Justin Pritchard is an experienced motoring expert whose work is read and watched by Canadians across the country on a weekly basis. An ABS warning light in your instrument cluster can indicate one of several major problems or malfunctions, so be sure to have a professional investigate as quickly as possible. Below, we’ll answer some of the most popular Internet search questions about cruise control, so you can make the best use of this important system.
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BMW Recalls iX EVs Over Cruise Control Issue That Can Cause Unintended Acceleration.
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Two companies are developing a more advanced cruise control that can automatically adjust a car's speed to maintain a safe following distance. This new technology, called adaptive cruise control, uses forward-looking radar, installed behind the grill of a vehicle, to detect the speed and distance of the vehicle ahead of it. Older cable-based cruise control systems seem more prone to this rare problem, in which the cable can slip or bind, making the throttle stick into position. More modern vehicles with electronic throttle and monitoring systems make this problem even less likely. For most drivers, using cruise control on the highway at 80 km/h can reduce fuel consumption by about 20 per cent.
Rider drives Ola scooter on 'autopilot': Bhavish says thinking of charging a fee for 'cruise control' - The Economic Times
Rider drives Ola scooter on 'autopilot': Bhavish says thinking of charging a fee for 'cruise control'.
Posted: Tue, 07 Nov 2023 08:00:00 GMT [source]
How does cruise control function?
It’s currently found on luxury models like Audi and Tesla as well as the latest e-vehicles like the Nissan Leaf. It’s likely that more and more cars will begin to use sensors for lane-keep assist technology. This is like a more advanced version of cruise control which users lasers, sensors or radar at the front of the car to detect other cars. This can be really useful in busy speed-limit zones so you can speed up and slow down with the flow of traffic without ever breaking the speed limit. Once switched on and set, it then regulates the engine to keep the car driving at a constant speed. If the road surface is snowy, icy, slushy or very wet, you’ll want to think twice about switching your cruise control on.
How Cruise Control Systems Work
Adaptive cruise control, which monitors the ever-changing road ahead continuously via radar or laser, is potentially better equipped to handle congested roads. There's no definitive answer on whether that's the case, however, because this feature is very different from vehicle to vehicle. Remember, these systems are here to make your drive smoother and safer, but they're not a replacement for your attention. No matter how fancy your cruise control is, these systems can be greatly influenced by external conditions like weather and traffic, and they should always be used as aids, not replacements, for attentive driving.
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Once deactivated, you will be in full control of your vehicle once again. The 77-GHz Autocruise radar system made by TRW has a forward-looking range of up to 492 feet (150 meters), and operates at vehicle speeds ranging from 18.6 miles per hour (30 kph) to 111 mph (180 kph). Delphi's 76-GHz system can also detect objects as far away as 492 feet, and operates at speeds as low as 20 mph (32 kph). The brain of a cruise control system is a small computer that is normally found under the hood or behind the dashboard. It connects to the throttle control seen in the previous section, as well as several sensors. The diagram below shows the inputs and outputs of a typical cruise control system.
In the picture above, you can see two cables connected to a pivot that moves the throttle valve. One cable comes from the accelerator pedal, and one from the actuator. According to the Department for Transport, driving at a steady speed of 50 mph instead of 70 mph can improve fuel economy by 25%. For example, heavy goods vehicles (HGVs) can’t go above a maximum speed of 60mph even on a motorway.
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On the other hand, neither conventional nor adaptive cruise control relieves the driver of the ultimate responsibility of safely driving the car. It’s up to the driver to maintain control over the car’s operation. When used appropriately, conventional and adaptive cruise control are safe. The cruise control system controls the speed of your car the same way you do -- by adjusting the throttle position. But cruise control actuates the throttle valve by a cable connected to an actuator, instead of by pressing a pedal. The throttle valve controls the power and speed of the engine by limiting how much air the engine takes in (see How Fuel Injection Systems Work for more details).
It’s more advanced than traditional systems but still requires driver attention. Tesla’s FSD Beta represents a leap forward in autonomous driving technology. It’s not just a cruise control system but an advanced driver-assistance system capable of navigating complex driving scenarios.
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Also, if you were on a steep enough hill, the car might not accelerate at all. Are the latest features of cruise control one step closer to driverless cars? The latest innovations include systems to warn of of hazards up ahead and prevent you from moving into a lane where there’s a vehicle in your blind spot. Traffic jam assist is a type of adaptive cruise control that some cars have.
However, they will not apply the brakes in the event of overspeeding downhill, nor stop the car from going faster than the selected speed even with the engine just idling. Cruise control work with a manual transmission just the same way it does with an automatic. Drivers set their cruising speed with a button press, and the system works the throttle automatically to maintain the desired cruising speed as evenly as possible. In some vehicles with a manual transmission, pressing the clutch pedal to shift gears turns the cruise control off, requiring an additional button press to reengage it after a gear change.
It can also help you do your part to maintain the steady and efficient flow of traffic. Cruise control is a technology in cars that allows drivers to maintain a constant speed without keeping their foot on the accelerator. The feature is commonly used during long drives on highways or other open roads.
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Additionally, adaptive cruise control provides a button to establish the minimum distance it will accept before responding to the slowing or stopped car in front of it. Usually, the factory offers three or four choices from which you can pick. A graphic on the driver information screen displays a representation of the changing minimum distances as you use the button to scroll through them. Adaptive cruise control is just a preview of the technology being developed by both companies. These systems are being enhanced to include collision warning capabilities that will warn drivers through visual and/or audio signals that a collision is imminent and that braking or evasive steering is needed.
Because you don’t have to keep your foot on the accelerator, it’s easier to nod off – and lose control of your vehicle. On slippery roads – that includes snow, ice, heavy rain and hailstorms – as this increases the chances of sliding. At one time it was only found on high-end luxury cars, but now even the smallest city cars frequently have it fitted. Nissan and other manufacturers are even looking at connected cars that will share data with one another to help autonomous systems learn how to avoid hazards and react to certain situations. Before you buy, be sure to determine which type of cruise control system is fitted to the car you’re considering. Depending on the year, make and model, cruise control may be available for add-on or retrofit.
Drivers are still required to keep their foot on the pedal to keep their vehicle in motion, but will not be able to accelerate past a predefined speed limit. Standard cruise control (simply called cruise control) holds your vehicle’s speed as constant as possible once set. Cruise control technology plays a vital role in the development of autonomous vehicles, or self-driving cars. In autonomous vehicles, cruise control systems work together with other advanced driver assistance systems (ADAS) to enable the vehicle to operate without direct driver input.
Other systems will take evasive action and brake the car automatically. Modern stop-and-go systems, often termed traffic jam assist, takes the hassle out of navigating rush hour traffic. Adaptive cruise control is what makes semi-autonomous driving possible. In general, a car with ACC incorporates some combination of radar sensors, lasers, and cameras to identify other vehicles or obstacles in the vicinity. Radar- and laser-based systems both make use of sensors integrated into the vehicle's front fascia. This information is transmitted to the car's mechanical systems, which respond accordingly.
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