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These systems include lane-keeping assist, automatic emergency braking, and collision avoidance systems. 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.
– Watch the road and steer
Over the years, cruise control technology has undergone significant advancements, leading to the development of sophisticated systems like adaptive cruise control. Cruise control, also known as speed control, is an electronic system that allows you to maintain a specific speed without manually controlling the accelerator pedal. The system uses sensors and electronic components to control the throttle and keep your car moving at a desired speed.
Cruise Control and Road Etiquette
The main buttons are set, coast, accelerate, cancel, on, and off, and some new cars have maximum and minimum speed buttons as well. With cruise control, drivers need to brake to slow down as they close in on a slower vehicle in traffic. With adaptive cruise control, the system makes these braking inputs automatically, and the vehicle speeds back up to its pre-set cruising speed once traffic clears. Once the cruise control system is activated, the driver can adjust the speed using speed control buttons. These buttons allow the driver to increase or decrease the set speed in small increments. By pressing the appropriate button, the driver can fine-tune the desired speed for their comfort and road conditions.
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Adaptive cruise control uses sensors around the vehicle’s exterior to maintain speed while keeping a safe following distance from the car ahead. The system will slow you down and speed you up as the flow of traffic fluctuates throughout your commute, removing a lot of the stress from daily driving. However, adaptive cruise control may not work well in bad weather or protect you from sudden movements, so you will want to always keep your full attention on the road. Cruise control is less flexible on vehicles with a manual transmission because depressing the clutch pedal and shifting gears usually disengages the cruise control. The "resume" feature has to be used each time after selecting the new gear and releasing the clutch.
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This modern feature uses sensors and radar to maintain a safe distance from the vehicle ahead, adjusting speed automatically. In terms of mechanical speed control, an actuator is employed to which a cable is connected. This setup actuates the throttle valve, effectively performing the same job as you would if you depressed the gas pedal with your foot. Another component is the speed control module, effectively the "brains" behind the system that remembers the desired speed. A car with ACC will commonly boast small wheel-mounted units that measure its speed, along with a front-mounted one that can determine how far away other vehicles are. The former can adjust how fast your vehicle is moving relative to any motorists ahead, thereby ensuring that you always maintain your selected distance from them.
How to set cruise control
The driver selects the speed, then takes their foot off the accelerator, and the vehicle will cruise at the set speed. To deactivate, the driver can tap the brakes or disengage the system. The benefits of using the cruise control feature are better fuel efficiency and reduced foot fatigue during long drives.
As a failsafe, any problem with these sensors can cause the cruise control system to go offline. If you notice this happening regularly, have your vehicle diagnosed by a professional. If the cruise control on your car fails to disengage when you want to slow down, slip the vehicle into neutral to disconnect drive power from the wheels, pull over, and address the situation. For a deeper understanding of cruise control and its various aspects, it’s always beneficial to refer to your vehicle’s manual and seek guidance from automotive professionals. It’s not advisable to use cruise control in hazardous weather or heavy traffic. This is only the case when driving for longer stretches on wide, clear roads, however.
The officer walks up to your window, tears the page from his pad and hands it through the window. With an admonishment to drive slower, he tells you to have a nice day and leaves you staring at your speeding ticket. If the car in front suddenly speeds off, however, your car won’t routinely follow it. Instead, the ACC system will hold the pre-set speed until you change it, or it catches up with another vehicle.
Using Cruise Control Safely and Efficiently
Some controls perform multiple functions, depending on how they are used. For example, the Set and Accelerate functions are often incorporated into the same button or toggle. Conventional cruise control uses its computer to maintain a speed determined and manually set by the driver with no awareness of or regard for surrounding traffic and conditions. Capable of responding to topographical changes, like going up and down hills, the computer increases throttle pressure or engages the engine brake to maintain the preset speed.
However, drivers should remain attentive and ready to take control of the car at any moment. It’s also important to note that cruise control should not be used in hazardous weather or road conditions. The “Cancel” button, often marked with the symbol “CRUISE” or “OFF,” deactivates the cruise control system. Pressing this button disengages the system and allows the driver to regain full control over acceleration and braking.
Point is, the more time you spend at a steady speed, the less fuel your engine needs. In other cars with a manual transmission, pressing the clutch pedal simply pauses the cruise control system a moment, allowing drivers to complete their gearshift. When they’ve released the clutch, the cruise control picks up where it left off — no additional button press required. Each system has its strengths and caters to different driving needs and preferences. Tesla’s FSD Beta is at the forefront of autonomy but requires active supervision. GM’s Super Cruise excels in hands-free highway driving, while Ford’s Co-Pilot360 focuses on safety and driver assistance for everyday use.
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