Lane Keeping Assist and Lane Departure Warning are electronic driving aids that help keep the car in a straight line. Although it sounds simple, these technologies come in handy on narrow roads or during a long and tiring journey. They are also becoming more common; You no longer need a six-figure budget to get a car with either (or both).
Here’s what they do, how they work, and the difference between the two.
Lane departure warning: what to look for
Lane keep assist and lane departure warning are industry terms for technology that focuses on preventing cars from drifting out of their lanes. Lane Departure Warning systems only warn the driver when the car is drifting out of its lane, while Lane Keep Assist works to prevent the car from drifting out of its lane. These systems often come with technology that performs other functions, such as adaptive cruise control and autonomous emergency braking.
Lane departure warning systems scan the road to determine where the lane markings are. If the car drifts over these marks, the system notifies the driver, usually by beeping or displaying a warning message on the dashboard. It is then up to the driver to take corrective action. If you’re looking to buy a car and want to know if it’s available with lane departure warning, you can check the safety ratings from the National Highway Traffic Safety Administration (NHTSA).
Lane Keeping Assist goes one step further by allowing the car to steer itself in the right direction. Some systems apply the brakes to one side of the car to try to push it into the correct position, but many newer systems use steering. The amount of steering can vary from gentle nudges intended to guide the driver to full interventions. Some automatic steering systems, such as those offered by Mercedes-Benz and Porsche, among others, follow slight curves in the roads or initiate lane changes.
Because the capabilities of this technology vary from system to system, it’s important to know your car’s limitations before leaving lane-keeping tasks to the machines. And while some cars can drive themselves to a limited extent in certain situations, keep in mind that none of these technologies come close to fully autonomous driving. These are aids that make driving safer, but they are not a substitute for a careful human driver.
Lane Departure Warning: Who Does It Better?
sling
Lane keeping and lane departure warning are included in the Honda Sensing suite of driver assistance systems currently available on most models from the Japanese automaker. But Honda goes a step further than most with its Road Descent Mitigation System. This detects when the car is swerving near the edge of the road without the turn signal on and applies both steering and braking to prevent the car from going off the road. Select models also get Honda’s LaneWatch system, which adds cameras to the passenger-side outside mirror. Every time the driver signals to the right, video from the camera is displayed on the car’s dashboard display, increasing visibility. However, Honda is expected to discontinue this feature in favor of cheaper blind-spot monitoring.
Plenty
Nissan’s luxury brand wins the award for the most complex solution for lane keeping technology. Infiniti’s Direct Adaptive Steering system effectively breaks the connection between the steering wheel and the road. This drive-by-wire system can work with lane keeping assist to make minor steering corrections to keep the car centered in its lane. This also gives the wheel a strange feeling when you really want to be in control. Interestingly, Infiniti also offers automatic lane centering as part of the ProPilot Assist system, but not in combination with Direct Adaptive Steering. Infiniti models have one or the other system.
Mercedes Benz
Mercedes offers a lane keeping assist system that brakes individual wheels to force the car back into its lane. But the German automaker also has a power steering system that can keep the car in the center of its lane through steering. The system works at speeds of up to 124 miles per hour, both on straight stretches of road and around gentle curves. It relies primarily on traffic lane markings, but can also “follow” the vehicle ahead. The blind spot monitoring system on some Mercedes models will also attempt to steer the car back into its lane if the driver moves while another car is in their blind spot.
tesla
The steering assist feature that prevents the car from drifting out of its lane is one aspect of Tesla’s Autopilot system that has been hotly debated. Autopilot allows the car to make significant changes in direction, though Tesla cautions drivers to be ready to take control at all times. While most systems are meant to keep the car in lane, Autopilot can also help when it’s time to change lanes; You can perform an automatic lane change by pressing the turn signal.
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Source: newstars.edu.vn