• Jul 18, 2010
2011 Mercedes-Benz CL-Class active steering correction – Click above for high-res image gallery

The refreshed 2011 Mercedes-Benz CL-Class coupe is a prime example of how engineers are starting to take some of the disparate hardware technology that has been introduced over the last decade and integrate it to provide new functionality. The CL employs the various optical camera and radar sensors used for features like adaptive cruise control to help prevent accidents by first warning the driver and then intervening if the driver doesn't respond.

We've had various lane departure and blind spot warning systems for several years now and like those, the Mercedes system starts by alerting the driver. At first, the blind spot system illuminates a yellow lamp in the relevant mirror, which changes to red and adds an audible warning if the driver doesn't react. If the driver keeps moving into the path of another vehicle, a motor sends a rumble through the steering wheel and the brakes on the car's opposite side are applied to pull it back in line.

Inifiniti has had similar lane-keep functionality for several years, but the CL is first car we're aware of that integrates it with a blind-spot warning system.



[Source: Mercedes-Benz]
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2011 CL-Class Showcases Corrective Braking

July 14, 2010 - MONTVALE, NJ


The restyled CL-Class boasts two new safety features based on state-of-the-art radar, camera and sensor technology. Renowned as the flagship coupe from Mercedes-Benz, the 2011 CL-Class debuts Active Lane Keeping Assist and Active Blind Spot Assist, both designed to help the driver avoid danger through corrective braking. Building on the innovative technologies introduced last year on the E- and S-Class, the CL-Class now showcases the height of safety technology form Mercedes-Benz including features such as ATTENTION ASSIST, PRE-SAFE Brake with automatic emergency braking, and Night View Assist PLUS with Pedestrian Detection. The 2011MY CL-Class will make its U.S. debut in
Fall 2010.

Active Lane Keeping Assist
Using a multi-purpose camera mounted in the windshield and a computer that analyzes the images, Active Lane Keeping Assist recognizes lane markings and alerts the driver by simulating rumble strip vibrations in the steering wheel (via an electric motor) if the car drifts from its lane unintentionally. Should the driver fail to react to this warning, the car intervenes by gently braking the wheels on the opposite side of the car. The unequal distribution of braking forces causes a yaw movement which helps the driver to stay in their lane. Active Lane Keeping Assist makes use of the existing ESP® (Electronic Stability Program) system to apply the brakes and maintain vehicle control.


Active Blind Spot Assist
The second innovation on the 2011 CL-Class, Active Blind Spot Assist, monitors both blind spots alongside the vehicle using close-range radar sensors. When a vehicle is detected, a yellow warning triangle is illuminated in the corresponding side-view mirror. Should the driver disregard this warning and activate the turn indicator, the warning triangle changes to red and an audible warning also sounds. If the driver continues to ignore these warnings and moves dangerously close to a neighboring vehicle, the system activates corrective braking intervention to the wheels of the opposite side of the vehicle. Like Active Lane Keeping Assist, the yaw movement helps correct the car's path or minimize the consequences of
a collision.

About Mercedes-Benz USA
Mercedes-Benz USA (MBUSA), headquartered in Montvale, New Jersey, is responsible for the sales, marketing and service of all Mercedes-Benz and Maybach products in the United States. For more than forty years, MBUSA has taken pride in its commitment to the customer by providing superior quality luxury vehicles coupled with outstanding customer support.

A division of Daimler AG, MBUSA is also responsible for the distribution, marketing and customer service of Mercedes-Benz Sprinter vans in the US. More information on MBUSA and its products can be found at www.mbusa.com, www.maybachusa.com and www.mbsprinterusa.com.


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    • 1 Second Ago
  • 24 Comments
      • 4 Years Ago
      What if, say, the driver is swerving from an animal or a pedestrian, choosing to turn abruptly to the next lane? Are they dead by now?
      • 4 Years Ago
      Just to play devil's advocate here - on the tech, not the styling; that interior is awful - it is a good thing to see all of these newish technologies, however rarely useful some of them are, become more integrated and seamless. I would hope this kind of integration means fewer components and reduced mass, but that is probably about as wishful thinking as hoping for a "delete glossy wood interior finish" option.
      • 4 Years Ago
      I believe infinitis is integrated into its blind spot warning system, its called Blind Spot Intervention system.
        • 4 Years Ago
        Its almost the exact same thing. I saw a video a few weeks ago. Light on relevant side turns on. if you turn on turn signal in the relevant direction, it begins to beep. if you continue, it applys brakes on opposite side. Everything but the steering wheel vibration.
        http://www.youtube.com/watch?v=qHn6Wx752kI
      • 4 Years Ago
      I guess I haven't been in a Mercedes in a few years because I would remember a steering wheel that ugly.
        • 4 Years Ago
        I'm with you on that one. It would suck to have to look at that wheel all the time.
        • 4 Years Ago
        Someone at MB obviously realizes that the wood part of the steering wheel is uncomfortable to hold. Too bad it's not whomever made the decision to put it there in the first place.
        • 4 Years Ago
        first thought as well, what an ugly steering wheel!
        • 4 Years Ago
        Hey Norm, that was funny! You should work with Leno. I almost missed the joke. subtle, very subtle.
        • 4 Years Ago
        @making11s: I thought the same, then read your post and LOLed.

        I look at that steering wheel and imagine it came to fruition somewhat like this: "hey guys, you know what would be really funny?"
        • 4 Years Ago
        Another piece of garbage that everyone have to pay for just to keep the idiots in check. These cars are dumb down to a point now no one will pay any attention. It's bad enough already without these encouragements.

        I'm waiting for a car company to grow a sack and put a taser. Problem solved in the space of one week.
        • 4 Years Ago
        normgarry is like the anti-simplecar... though thats not necessarily a good thing
        • 4 Years Ago
        FIRST OF ALL, NONE OF YOU CAN AFFORD THIS CAR so stop insulting it.

        SECOND OF ALL the steering wheel IS NOT UGLY...especially not as ugly as what's in YOUR CARS. If it was so ugly, no one would be willing to pay $100,000 for it.

        LASTLY this is a good step for MB because alot of Limo drivers are in S-classes and they need to stay focused.
      Kumail
      • 4 Years Ago
      Here's a crazy idea: what if drivers just payed attention? o_O
        • 4 Years Ago
        @Kumail
        The problem with that is the idiots could not play with their cell phones, ipods, dvd players, etc. etc.
        • 4 Years Ago
        @Kumail
        PAID
        • 4 Years Ago
        @Kumail
        But... but I need to fiddle with my ipod while reading the paper and applying make up!
      • 4 Years Ago
      I'd be nice if the unwashed masses, or in this case the manicured masses would get a clue and pay attention when driving but you know what they say (they meaning me).... if you build a smarter car we'll just build a better idiot.
      • 4 Years Ago
      I don't like the fact that drivers pay very little attention to driving these days either. Notice I said fact. Just because you don't like it doesn't mean it's going to change. Cell phones are here to stay. These systems are meant to help the current situation, not a past situation. This is a step toward more automated cars. Driving, except when it's done for pleasure (i.e. autox, track time, etc.), is only necessary because we don't have the technology to automate it. I for one would love to be able to read a book, or do work, while commuting to work in my automated car. People are not going to stop using their cell phones while driving. And there are only going to be more and more gadgets. MB is making some strides. A leap is needed, but small steps like these should not be frowned upon.

      Also, hasn't anyone taught you that taste is subjective? You should discount somebody's opinion for personal taste, and you should not insult them for liking what you don't. If we all liked the same things the world would be a very boring place. +1 wood steering wheel!
      • 4 Years Ago
      That interior looks HORRIBLE.

      But on top of that, I see this as more BS technology to get your attention simply to compensate for previous BS technology that they put into their cars to distract your attention.

      Here's an idea... simply stop putting tons of crap into your cars to begin with and people will have less stuff to distract them.
      ... but I know that's not going to stop because how else will companies like M-B still get people to pay ridiculous amounts of money for their cars when a $25k can do just as good of a job in terms of being a form of transportation.
      • 4 Years Ago
      Blind spot detectors? Okay, I think I can accept that, I think there may have been one or two moments when it may have helped me, but even then I was paying enough attention to know there was a car beside me. And this was in my work truck, where there is no window behind me.
      This reminds me of someone I once knew, his father gave him a Lexus SC400 (I don't think I need to tell you where they were from) and he told me one night he was tired driving home, and he was too lazy to check his blind spot and he hit a car changing lanes, and this is in a car with windows all around him!
      But like I said, I think this may help a little more than that stupid 'parking assist'. That is what really bugs me, if you can't park your car, then why are you driving? If you don't have the skill to maneuver a 3000lb car in a tight space at extremely low speeds, then you obviously don't have the proper skill to maneuver that same vehicle at higher speeds.
      And then when these drivers get into different cars for the first time, they'll either crash because they thought the car would brake for them, or they won't even know how to get out of their parking stall!
      This is why I like my '06 Kia Spectra5. It's got NOTHING in it; no ABS, no TC, but I like to think that makes me a better driver because I'm not relying on those things...
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