TechCrunch Mobility: Cruise robotaxis return and Ford's BlueCruise comes under scrutiny
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Others work only within certain speeds and/or might not start to accelerate automatically. Level 3 – If Level 2 is partial self-driving, Level 3 is conditional full automation. A Level 3 self-driving system uses a wide spectrum of driver-assistance features and artificial intelligence (AI). These technologies collude to react to and make decisions about the vehicles’ ever-changing situations. In a Level 3 vehicle, the driver can completely surrender control of the vehicle’s operation on specific roads.
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Some call it adaptive cruise control as the root and then tack something onto it. Speed control existed in early automobiles such as the Wilson-Pilcher in the early 1900s. I’m back in a Mercedes EV, this time a 2024 Mercedes EQE 350 4MATIC. The version I drove came in at $97,615, due to all sorts of options, like a 10-degree rear axle steering system, head-up display, air suspension, AMG exterior and a $1,250 driver-assistance system. It was another wild week in the world of transportation, particularly in the EV startup and automated driving industries.
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Chrysler Corporation was the first manufacturer to offer the groundbreaking mechanism as an option on several of its luxury vehicle models nine years later. Today, cruise control is rapidly becoming the standard on all new vehicles, providing drivers with increased convenience on their daily drive. One potential downside to using cruise control is that it can result in the driver having a reduced reaction time when they must respond quickly to an unexpected situation on the road. Motorbiscuit reminds drivers that cruise control is not a hands-free driving feature.
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That’s why we think it’s essential that ADA systems use direct driver monitoring systems (DDMS) to make sure the driver is paying attention to the road. A good system will encourage the driver to stay actively engaged, such as by allowing the driver to give steering inputs without fear of the LCA function shutting off. Adaptive cruise control (ACC) is an active safety system that automatically controls the acceleration and braking of a vehicle. It is activated through a button on the steering wheel and cancelled by driver’s braking and/or another button.
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Honda Adaptive Cruise Control (ACC) with Low-Speed Follow
We evaluated the systems in terms of how clearly they communicate in real time about when drivers should—and should not—be using the technology. We also looked at how well they "explain" themselves in instances when the system won’t engage or suddenly turns itself off. There should be distinct, independent controls for ACC and LCA activation. Combining them into either a single control or a multistep activation removes the freedom for drivers to use each feature on its own.
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Make sure your speed is within your area’s established speed limits. If it’s your first time using your car’s cruise control system — or if you’re not 100% sure how to turn on cruise control in your car —the process starts before you crank the engine. Get the car’s manual and learn what each cruise control button does. Different makes and models may have different combinations of buttons or features. Modern cruise control is electronic and uses a computer to control your car’s speed.
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Check that the road is clear, that weather conditions are good, and that you’re on a highway or a road where you won’t have to stop or change speed often. If conditions are right to use cruise control in your car, turn on the system. Adaptive cruise control (ACC) is the latest type of cruise control that’s becoming widely available in cars. ACC maintains your speed but incorporates sensors to measure the distance to the car ahead.
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If you must drive in this situation, it may be a better idea to do so manually. Cruise control works best on a clear day with constant traffic flow. As you’re learning how to operate a vehicle, understanding cruise control will help increase your comfort behind the wheel and knowledge of driving. When a car comes into the shop, techs need to know when to order or perform ADAS calibrations. If calibrated incorrectly, ACC systems may have following distance settings that drivers aren’t used to. They can also make the systems overly sensitive, or not sensitive enough.
How do you turn off adaptive cruise control?
It can use radar, laser, binocular computer vision systems, a forward-aimed camera, or some combination of these technologies to track the traffic ahead of your vehicle. It senses when that traffic flow slows or stops, reacting to maintain the preset following distance. Cruise control is still the more prolific of speed controls offered on today’s new cars, but adaptive cruise control has started gaining ground. But, what exactly is adaptive cruise control, and how does it work? Radar-based ACC is often sold together with a precrash system,[43] which warns the driver and/or provides brake support if there is a high risk of a collision. Also in certain cars, it is incorporated with a lane maintaining system which provides a power steering assist to reduce steering input burden on corners when the cruise control system is activated.
It’s equal parts eerie and amazing to experience Ford’s BlueCruise hands-free driving feature as it takes over your car’s steering, braking, and acceleration while you travel down the highway. Bosch has developed several ADAS functions relying on TomTom ADAS Map data services for intelligent cruise control, upcoming curve alerts and jam tail warnings. All these are critical components for car manufacturers developing the latest standard in automated driving systems. Adaptive cruise control automatically controls the acceleration and braking of a vehicle. On properly equipped 2024 model year vehicles, you can set an Adaptive Cruise Control speed while you’re stopped (the system must be on, you must apply the brake pedal and your vehicle must be in a forward gear). Adaptive cruise control relies on a combination of radar sensors, cameras and location data.
Radar-based sensors can be hidden behind plastic fascias; however, the fascias may look different from a vehicle without the feature. For example, Mercedes-Benz packages the radar behind the upper grille in the center and behind a solid plastic panel that has painted slats to simulate the look of the rest of the grille. Laser-based systems do not detect and track vehicles in adverse weather conditions nor do they reliably track dirty (and therefore non-reflective) vehicles. Laser-based sensors must be exposed, the sensor (a fairly large black box) is typically found in the lower grille, offset to one side.
A good cruise control system accelerates aggressively to the desired speed without overshooting, and then maintains that speed with little deviation no matter how much weight is in the car, or how steep the hill you drive up. Controlling the speed of a car is a classic application of control system theory. The cruise control system controls the speed of the car by adjusting the throttle position, so it needs sensors to tell it the speed and throttle position. It also needs to monitor the controls so it can tell what the desired speed is and when to disengage.
Models from Mazda, Porsche, Stellantis (Alfa Romeo, Chrysler, Dodge, Fiat, Jeep, Ram) were not included because we didn’t have a vehicle equipped with these features in our fleet when the tests were conducted. Fisher and other safety experts say that many of them are designed in a way that may lull drivers into complacency, giving them a false impression that the car is handling everything on their behalf. That can be dangerous if the ADA system encounters something it can’t handle, such as road construction or an emergency vehicle, and the driver is not prepared to take back control of the car quickly. In order for any ADA system to be used safely, the driver always needs to remain attentive. TomTom creates technologies for a moving world that supports all levels of autonomous driving. To learn more about how the ADAS Map is already powering automated vehicles on the road today, download the product sheet.
“It is so nice to just set it and let the car worry about the traffic,” they told CR. Check out the below video from our sister site Autotrader that explains what you need to know about adaptive cruise control. A governor was used by James Watt and Matthew Boulton in 1788 to control steam engines, but the use of governors dates at least back to the 17th century. On an engine, the governor uses centrifugal force to adjust the throttle position to adapt the engine's speed to different loads (e.g., when going up a hill).
Tesla’s Autopilot and Lexus’ Safety System+ 3.0 are both capable of being used even when there’s only a single lane line down the middle of the road, which can lead to the driver using them in an unsafe situation. The systems try to create a “center” of the lane but often end up steering too close to the unlined edge of the road. The TomTom ADAS Map is designed for this purpose, providing a range of attributes that power modern ADAS systems. Is anyone surprised that carmakers can’t seem to agree on a single term for adaptive cruise control? ” We can sort of forgive Mercedes for its Distronic cruise control.
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