Ford System Will Warn, Correct Lane-Drifting Drivers

PolygamousRanchKid writes "Ford says its new Fusion, which will debut at the North American International Auto Show in a couple weeks, will be the first mainstream midsize sedan in North America to offer a lane departure system. Lane departure systems are aimed at warning drivers, especially drowsy ones, if their vehicles wander out of their lane. A digital camera mounted on the windshield ahead of the rear-view mirror keeps a watch. The system not only causes the steering wheel to vibrate if it senses an unintentional lane departure, it will also steer the car back into the right lane. The National Highway Traffic Safety Administration estimates that 100,000 police-reported crashes occur every year as a result of drowsy drivers, leading to 1,500 deaths, 71,000 injuries and $12.5 billion in monetary losses." I'd just like to know how hard the AI will fight if it misinterprets a driver's intentional lane change.

Comments

Turn signals are a good thing

[EngrBohn]

Personally, I'd guess that a turn signal will convince the AI to allow an intentional lane change.

Re:Turn signals are a good thing

[newcastlejon]

I wonder if this system could be integrated with parking sensors, to prevent some instances of lane-changing when there's another vehicle in the blind spot.

re: indicators, I welcome anything that even gently enforces their use.

Re:Turn signals are a good thing

[sribe]

As do I. All these nut bags that refuse to use their signals are a danger on the road.

Turn signals are dangerous. They provide your adversaries with advance notice of your intention; it's much better to take them by surprise. (I came to understand this when I lived in Boston.)

Re:Turn signals are a good thing

[EdIII]

I assume your talking about those assholes that speed up to block you the moment you put on your turn signal. I hate those mfckers.

Which is why this system would prevent my patented "drunk man behind the wheel" maneuver. Asshole does not want to respond your signal and let you in? Just start drifting over a little, correct, and then drift back more forcefully.

If they think you are lucid, they become aggressive. If they think you are having problems it is amazing how much distance they give you right away.

Of course, when I had a F350 raised up, everybody gave me room right away. I miss that beast.

P.S - Yes. I fully acknowledge that I am psychopath on the road, but then I view it as warfare just like the poster you replied to.

Re:Turn signals are a good thing

[Anonymous Coward]

Some car manufacturers don't put turn signals on their vehicles. BMW, Jaguar, Mercedes, and Cadillac come to mind. Most of these cars don't seem to have them built-in. But I do believe there is an aftermarket turn signal package because a few (very few) do have signals.

Re:Turn signals are a good thing

[dr2chase]

"Some emergency situations" occur how often? No doubt, for every safety feature on a car there is some fringe case that it makes worse, but the net is (usually) better. What if you *needed* to lock up your brakes and slam the car into a skid, and the ABS prevented it? But overall, ABS is a good thing. We (humans) seem easily distracted by "fault", "intent", and "blame", when it would make a lot more sense to just try to minimize the body count.

Re:Turn signals are a good thing

[robi5]

so if there are no cars that could use my signal than I will not turn it on.

You should also signal to those drivers you're not aware of. Maybe traffic code says things for a reason. But if it's "invent your own traffic rules" day, then I guess anything goes :-)

Re:Turn signals are a good thing

[Anonymous Coward]

if there are no cars that could use my signal than I will not turn it on.

Ok, so what if there are cars that you don't see? Or maybe you see other cars but you think they don't care about your signal. What gives you the right to decide for them whether or not they want to see your turn signal?

The most important reason to ALWAYS use your turn signal -- even if nobody is around -- is just to form a solid habit. So much so that it should feel strange to turn or change lanes without using your turn signal. If you have this solid habit of using your turn signals every time, you don't need to worry about analyzing every situation to determine who may or may not need to see your turn signals (and sometimes be wrong) and concentrate on the parts of driving that actually do need your brainpower. Just do it.

If you're worried about leaving the signal on afterwards, maybe you should be paying more attention to your driving.

Re:Winter

[tipo159]

Then the camera won't be able to see the lines, now will it?

Do you spend much time driving in winter conditions? Sometimes two lanes in the direction of travel end up effectively reduced to one with the painted lane divider line clearly visible in the middle of the lane. Around curves, the position of the painted lane divider line will shift relative to the track of the lane of travel.

I can't imagine that there won't be a disable button for this feature for stuff like winter driving.

Re:More of a distractionary feature.

[The Master Control P]

We're sorry that the average American can't afford a 350hp V8 penis compensator under the hood any more. Complaints can be filed with OPEC to your right.

Re:`why not stop the car?

[icebike]

The idea that we should promote drowsy driving by making it (hypothetically) less fatal to do so is laughably absurd. Sometimes a driver needs to swerve to miss an accident occurring--no time to signal, so into the pileup we go? Hmm...

From the linked story, (which you clearly didn't read):

When the system detects the car is approaching the edge of the lane without a turn signal activated, the lane marker in the icon turns yellow and the steering wheel vibrates to simulate driving over rumble strips. If the driver doesn't respond and continues to drift, the lane icon turns red and EPAS will nudge the steering and the vehicle back toward the center of the lane. If the car continues to drift, the vibration is added again along with the nudge. The driver can overcome assistance and vibration at any time by turning the steering wheel, accelerating or braking.

The return to lane feature only works if you start to drift into the other lane, not if you actively turn into the other lane, or supply any other common control input to let the system know you are in fact paying attention.

Its not too hard to distinguish an alert driver at the wheel from someone nodding off, because a normal driver supplies 10 to 30 small control movements to the steering wheel per minute (Steering Reversal Rate), and these are typically Greater than 2 degrees and less than 6 degrees regardless of road curvature or lack there of. Once this rate falls to less than 5 reversals per minute, the car's computer can assume from this single measurement alone that the driver is getting drowsy, and when there are almost no reversals at all, that the driver has fallen asleep.

So the mere presence of control frequent movements on the wheel would sufficient to distinguish an intentional lane cross from an unintentional one.

There is a large amount of research already available on the web about his stuff. Google steering wheel reversal rate. This stuff has been known and measured for decades.