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Cruise control is an electronic device within your vehicle that controls the speed of your vehicle. It allows the driver to maintain a constant speed of 25 mph without holding their foot on the accelerator. Although the feature has been around for 70 years, automotive manufacturers continue to improve upon the technology to provide drivers with increased comfort, luxury, and convenience whenever they’re behind the wheel.
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Cruise control can become dangerous if the driver becomes too reliant on it and fails to remain attentive. Additionally, using cruise control in hazardous conditions, such as heavy traffic or inclement weather, can be dangerous. While cruise control is a convenient feature for modern drivers, it is not perfect for all circumstances. As mentioned, cruise control may become inconsistent in rainy, snowy, or otherwise hazardous conditions.
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It helps drivers maintain a steady pace on long trips, providing convenience and reducing the likelihood of unintentional speed fluctuations. Cruise control is far more common on American cars than European cars, because the roads in America are generally bigger and straighter, and destinations are farther apart. Stop-and-Go speed control systems can help reduce the stress and fatigue of driving in heavy traffic, as the system takes care of maintaining a safe distance and speed. Some systems also have the ability to recognize and respond to pedestrians and other obstacles, providing an added layer of safety. On the latest vehicles fitted with electronic throttle control, cruise control can be integrated into the vehicle's engine management system.
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It’s also important to note that cruise control should not be used in hazardous weather or road conditions. Cruise control is a technology in cars that allows drivers to maintain a constant speed without keeping their foot on the accelerator. To activate cruise control, the driver typically presses a “Set” button or engages a switch on the steering wheel or dashboard. This action captures the current speed of the vehicle and sets it as the target speed for the cruise control system to maintain. As you can see, cruise control is a great way to relieve much of the stress that comes with everyday driving. The constant rate of speed can also drastically improve fuel efficiency for longer drivers.
Examples of adaptive cruise control in a Sentence
Many systems set the cruise control at the current speed, while others require you to manually set one. You can increase and decrease this speed as needed without interrupting the mechanism. Do not attempt to set cruise control when you are traveling over the speed limit. In the picture above, you can see two cables connected to a pivot that moves the throttle valve.
The driver must manually bring the vehicle up to speed and use a button to set the cruise control to the current speed. 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.
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Different types of cruise control
Adaptive cruise control, on the other hand, uses sensors to detect the distance and speed of vehicles in front of the car, adjusting the vehicle’s speed accordingly to maintain a safe following distance. Stop-and-Go Cruise Control is an advanced form of speed control, Unlike other types of cruise controle systems. It can maintain a safe distance from the vehicle ahead, even in stop-and-go traffic.
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Adaptive cruise control is similar to conventional cruise control in that it maintains the vehicle's pre-set speed. However, unlike conventional cruise control, this new system can automatically adjust speed in order to maintain a proper distance between vehicles in the same lane. This is achieved through a radar headway sensor, digital signal processor and longitudinal controller. If the lead vehicle slows down, or if another object is detected, the system sends a signal to the engine or braking system to decelerate. Then, when the road is clear, the system will re-accelerate the vehicle back to the set speed.
Examples of cruise control in a Sentence
Cruise controls is usually packaged as part of the vehicle’s advanced driver-assistance system (ADAS). ADAS, while not autonomous, is constantly evolving to bring drivers new and more powerful safety features. However, Level 2 ADAS systems are viewed by some as the next step towards autonomous vehicles, with technology such as adaptive cruise control playing a core role in their argument. The problem with this though, is that partial automation (AKA cruise control) in cars has led some drivers to grow confused as to how far their vehicle’s autonomy extends, which is a dangerous combination. Recently, Tesla ran into trouble with its customers regarding complaints over cruise control deteriorating over time. The ‘phantom-breaking’ drivers experienced, where the EV would break suddenly and without warning, would almost cause the cars to be rear-ended.
When cruise control is no longer needed, or you need to quickly make a maneuver, simply apply pressure to the brakes to disengage the system. As you’re learning how to operate a vehicle, understanding cruise control will help increase your comfort behind the wheel and knowledge of driving. These examples are programmatically compiled from various online sources to illustrate current usage of the word 'cruise control.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
When the car is going 55 mph, the throttle position opening will be only half of what it was before. The result is that the closer the car gets to the desired speed, the slower it accelerates. The cruise control system actually has a lot of functions other than controlling the speed of your car.
When the car ahead speeds up, the cruise control will increase the vehicle's speed until it hits its set limit. If you want to dive even deeper into this topic, we’ve written about it before — click here for that article. The “Resume” button, also known as the “Accel” button, allows the driver to restore the previously set speed after it has been canceled or temporarily interrupted. When the driver presses the “Resume” button, the cruise control system accelerates the vehicle to the previously set speed. 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.
Multistrada V4 by DucatiFinally, real cruise control on a motorcycleMotorcycles have had the smarts to help riders avoid looming collisions for a few years now, but that intelligence has had its limits. A PID control system uses these three factors -- proportional, integral and derivative, calculating each individually and adding them to get the throttle position.
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