The 10 qualities of highly effective hands-free systems

The first time I saw — and heard — a hands-free kit in action was in 1988. (Or was it 1989? Meh, same difference.) At the time, I was pretty impressed with the sound quality. Heck, I was impressed that hands-free conversations were even possible. You have to remember that mobile phones were still an expensive novelty — about $4000 in today’s US dollars. And good grief, they looked like this:



It’s almost a shock to see how far we’ve come since 1988. We’ve become conditioned to devices that cost far less, do far more, and fit into much smaller pockets. (Though, admittedly, the size trend for smartphones has shifted into reverse.) Likewise, we’ve become conditioned to hands-free systems whose sound quality would put that 1998 kit to shame. The sound might have been okay at the time, but because of the contrast effect, it wouldn’t pass muster today. Our ears have become too discerning.

Which brings me to a new white paper from Phil Hetherington and Andrew Mohan of the acoustics team at QNX Software Systems. Evaluating hands-free solutions from various suppliers can be a complex endeavor, for the simple fact that hands-free systems have become so sophisticated and complex. To help simplify the decision process, Phil and Andrew have boiled the problem down to 10 key factors:

• Acoustic echo cancellation
  
• Noise reduction and speech reconstruction
  
• Multi-channel support
  
• Automatic gain control
  
• Equalization
  
• Wind buffet suppression
  
• Intelligibility enhancement
  
• Noise dependent receive gain
  
• Bandwidth extension
  
• Wideband support

Ultimately, you must judge a hands-free solution by the quality of the useful sound it delivers. By focusing on these 10 essentials, you can make a much sounder judgment (pun fully intended).

Recently, Electronic Design published a version of this paper on their website. For a longer version, which includes a decision checklist, visit the QNX download center.

Okay, time to get technical

Have glossy photos of the QNX concept car left you hungry for more? Dig into a technical whitepaper with our friends from Texas Instruments.

By now, many of you have seen photos and videos of the new QNX technology concept car, a specially modded Bentley Continental GT. Now, I'd like to say that the car was completed in record time by a small team of highly creative QNX engineers. And in many ways, that's absolutely true. But it's just as true that the work started more than 10 years ago, when QNX Software Systems started to build deep partnerships with leading players in the auto industry.

Because the truth is, you don't create this kind of magic overnight. And you don't do it on your lonesome. QNX has become successful in automotive for many reasons, but one of the most important is our ability to work closely, and productively, with A-list partners like Texas Instruments.

Inside the concept car

Take a look at the amazing displays in the Bentley, and the speed at which the screens redraw, and you get a taste just for how well QNX software and TI silicon work together under the covers.

Which brings me to a new white paper co-authored by Andy Gryc of QNX, and Matt Watson and Scott Linke of TI. It's titled "In-Vehicle Connectivity is So Retro," and among other things, it tells the story of how technologies from QNX and TI have co-evolved to help automotive developers build high-performance systems in less time and at less cost.

If your working vocabulary includes terms like OMAP 5, 1080p video decode/encode, floating-point DSP, MOST MLB, Ethernet AVB, PCIe, SATA, WiLink, Bluetooth, GPS, and NFC, this paper is for you.

QNX at 2013 CES: The media's take

The show ain't over yet, but already, media coverage of the QNX concept car at 2013 CES is pouring in faster than my modest brain can handle. I'm still catching up, but here, in no particular order, are my favorite stories so far.

I'd love to hear what you think of what the media is saying. So before you go, let me know!

New York Times — A Tricked-Out Bentley at CES Shows Off Tech’s Capabilities

Washington Post — CES 2013: Car tech focuses on making the most of your time on the road — safely

Driving.ca — QNX's Bentley gives glimpse of future car tech

Engadget — QNX unveils concept Bentley Continental GT alongside Car Platform 2.0

CNET — QNX concept Bentley showcases future dashboard technologies

Uber Gizmo — QNX Shows Off Bentley Continental GT Concept Car

Car Design News — QNX Car 2 at CES 2013 (video)

CrackBerry —  Dan Dodge shows off the QNX Bentley concept car at CES (video)

BerryReview — Monitor RIM’s New Bentley QNX Concept Car @CES from Your Browser

Auto Guide — QNX Previews Tesla-Sized Touch Screen in a Bentley

Engadget — QNX builds in-car speech framework with AT&T's Watson, knows our true intentions

Itbusiness.ca — RIM subsidiary brings in-car speech recognition (and a Bentley) to CES

LAPTOP — QNX Bringing HTML 5, 4G LTE, Video Conferencing to Future Cars

TechnoBuffalo — Chevy, Ford, and QNX at CES 2013 (video)

Financial Post — CES 2013 kicks off with RIM’s QNX showing off car, a step closer to digitized homes

Ottawa Citizen — Ottawa companies use CES to pitch latest products to the world

Tech 2 — CES 2013: QNX shows off Car Platform 2.0 with concept Bentley Continental GT

Blast Magazine — At 2013’s Consumer Electronics Show, car safety has become a hot topic

N4BB — QNX CAR Application Platform 2.0 Chosen by Delphi for Next-Generation Infotainment

That's it for now. I aim to post some more stories and videos early next week. Stay tuned.

QNX-powered Chevy Mylink drives home with 2013 Best of CES award

Congratulations to the infotainment team at Chevrolet! Their next-generation Chevy MyLink system has just won a Best of CES award, in the car tech category. The competition judges were particularly impressed with MyLink's user interface and integration with the car's instrument cluster.

The MyLink system was one of two QNX-powered finalists in this year's competition; the other was Garmin's K2 infotainment platform.

Chevy plans to roll out the new version of MyLink later this year.

Two QNX customers, Chevrolet and Garmin, shortlisted for 2013 Best of CES awards

Who doesn't love to win an award? Last year, for example, we were absolutely thrilled that our QNX CAR application platform drove home with a Best of CES award. Heck, I'm still excited!

But here's the thing. All of the products and services that QNX offers are designed with one goal in mind: to make our customers successful. The more our customers succeed, the more QNX succeeds. Which is why I am doubly excited today. Because not one, but two customers have nabbed finalist spots at this year's Best of CES awards for their QNX-based products: Chevrolet for its second-generation MyLink system, and Garmin for its K2 infotainment platform.

Congratulations to our friends at Chevrolet and Garmin — I'll be rooting for all of you!

The winners of this year's Best of CES awards will be announced today, at 11 am PT.

Now on YouTube! First video of QNX technology concept car

Yesterday, some friends from Texas Instruments dropped by our CES booth for a demo of the new QNX concept car. The cameras were rolling, and here's what they caught.

Mark Rigley, head of the QNX concept team, did a fantastic job of guiding TI's Michael Guillory through the car's many features, including the gorgeous HD display powered by TI DLP technology and by a TI OMAP 5 processor. Check it out:



My favorite part? The exceedingly cool video conferencing. What's yours?

Works for me: The making of the QNX technology concept car

If I were asked to create a recruitment video for QNX Software Systems, this is the video I'd want to shoot. Because this is the QNX that I know and feel proud to represent.

A place where people work hard. A place where people work together. A place where people work on technology that is changing how we drive and communicate. A place where I'd rather work than anywhere else.

Enough said. Roll the tape:

Delphi taps QNX CAR platform for next-generation infotainment

This just in: Delphi Automotive, a global supplier of automotive electronics with operations in 30 countries, has chosen the QNX CAR application platform 2.0 for use in next-generation infotainment systems.

This week, at 2013 CES, Delphi will demonstrate how it has leveraged the HTML5 framework in the QNX CAR platform to create a powerful graphics system for automotive use.

According to Jugal Vijayvargiya, senior vice president of Delphi and president of Delphi Electronics & Safety, “Our more than ten-year collaboration with QNX Software Systems has resulted in highly successful infotainment solutions that we’ve been able to bring to market quickly, thanks to the efficient, modular architecture of the QNX platform and its rich associated toolset. We’re very pleased to now extend our work on advanced in-vehicle technology with the latest version of the platform, which we were able to experience through QNX Software Systems' early access program.”

Read the full press release.

If you're 2013 CES this week, be sure to visit the Delphi booth in the North Hall, #730. You can also follow Delphi on Twitter: @DelphiAuto

It's a Bentley! A guided tour of the new QNX technology concept car

"Bend it, shape it, any way you want it"
— Headline from a QNX advertisement, circa 1987

I’m about to show you some pictures of a car. Not just any car, but a powerful, luxurious, and stunningly beautiful car. A car that has undergone a technological transformation.

If you’re like me, you'll be fascinated by the car’s features, some of which have never been seen in a vehicle — until now. But if you can, remember that it isn’t just about the cool features. It’s also about the platform that enabled them.

I’m speaking, of course, of the QNX CAR application platform.

We created the new QNX technology concept car — a modified Bentley Continental GT — to demonstrate that flexibility and customization form the very DNA of the QNX CAR platform. If you’ve seen the QNX reference vehicle, you already know that the platform provides an extremely rich environment for in-car infotainment, complete with HMI frameworks, smartphone integration, an HTML5 engine, a mobile device gateway, and a host of pre-integrated partner technologies — everything to kickstart our customers' projects. But in the automotive world, differentiation is everything. So it’s just as important that the platform enables customers to add their own branding, features, and sizzle. And to do it quickly.

Ease of branding and
personalization is just one

of the capabilities of the
QNX CAR platform.

Which is where the new concept car comes in. To create it, we used the same base QNX CAR platform that we offer our customers. But when you compare the Bentley to the Jeep, which uses a stock version of QNX CAR, the differences are dramatic: different features, different branding, and a different look-and-feel. In effect, the Jeep shows what QNX CAR can do out of the box, while the Bentley shows what QNX CAR lets you do once you start bending it to your imagination. One platform, many possibilities.

Which brings me to the slogan at the top of this post. It's amazing to think that a core value of QNX technology in the 1980s — giving customers the flexibility to achieve what they want to do — remains just as true today. Some values, it seems, are worth keeping.

And now, the car…
I know that you’re anxious to peek inside the car and see what we’ve done. But before we go any further, take a moment to savor the car’s beautifully sculpted exterior. This is one classy set of wheels. In fact, if you ask me, the wheels alone are worth the price of admission:



The awesome (and full HD) center stack
Okay, time to hop in — but get ready to prop up your jaw. Because the first thing you’ll notice is the jaw-droppingly beautiful center stack. This immense touchscreen features a gracefully curved surface, full HD graphics, and TI’s optical touch input technology, which allows a physical control knob to be mounted directly on the screen — a feature that’s cool and useful. (In the photo below, the clock display appears within the knob.)

The center stack supports a host of applications, including a 3D navigation system from Elektrobit that makes full use of the display. Just check out this bird’s-eye view of the Las Vegas Strip:



So how big is the display? Big enough to provide access to other functions, such as the car’s media player or virtual mechanic, and still have plenty room for navigation. Check it out:



The awesome (and very polite) voice rec system
Time to talk to the car. Just say “Hello Bentley,” and the car’s voice recognition system immediately comes to life and begins to interact with you — in a British accent, no less. You can now tell the media player what you’d like to hear and the navigation system where you’d like to go.

To provide natural language speech recognition, the system uses the cloud-based AT&T Watson speech engine, as well as an “intent framework” from QNX. It also uses keyword spotting technology from Sensory so you can start the system simply by talking to it.

The awesome (and nicely integrated) smartphone support
The Bentley also showcases how the QNX CAR platform enables automakers to offer advanced integration with popular smartphones. For instance, the car can communicate with a smartphone to stream music, or to provide notifications of incoming email, news feeds, and other real-time information — all displayed in a manner appropriate to the automotive context. Here's an example:



The awesome (and just plain fun) web app
I know, I know: the car looks cool, but you’re not at CES this week to see it first-hand. But how about the next best thing? Just connect to the web app and keep tabs on the Bentley in real time. (Note: The car will go online later this morning.) The app lets you view a variety of data that the car publishes to the cloud, such as what song the infotainment system is playing and whether someone has just opened a door. It also displays information that would be extremely helpful if this were your personal car, such as fluid levels and tire pressure. (This is a preliminary screen for the app, so I'm not sure if the tire pressures are realistic.)



UPDATE: The web app is now live, and the desktop version features a live camera feed of the Bentley and Jeep. Check it out!



The awesome (and very configurable) digital instrument cluster
The instrument cluster is implemented entirely in software, though you would hardly know it — the virtual gauges are impressively realistic. But more impressive still is the cluster’s ability to morph itself on the fly. Put the car in Drive, and the cluster will display a tach, gas gauge, temperature gauge, and turn-by-turn directions — the cluster pulls these directions from the center stack’s navigation system (cool, that). Put the car in Reverse, and the cluster will display a video feed from the car’s backup camera.



There are other options as well. For instance, the cluster can display information from the media player or display the current weather:



The awesome everything else
I’ve only scratched the surface of what the car can do. For instance, it also provides:

• Advanced multimedia system — Offers direct support for Pandora radio and the first embedded in-car implementation of the Shazam music discovery service.
   
• Video conferencing with realistic telepresence — Separate cameras for the driver and passenger provide independent video streams, while high-definition voice technology from QNX offers expanded bandwidth for greater realism, as well as stereo telepresence for making the remote caller sound as if they’re sitting right next to you.
   
• LTE connectivity — The car features an LTE radio modem, as well as a Wi-Fi hotspot for devices you bring into the car.

Super size those images
Want to see the center stack and instrument cluster in all their high-resolution glory? Just check out our QNX Flickr account.

That's all for now, but stay tuned: We’ll have plenty more news for you today and all through this week.

New QNX framework promises to bring power of AT&T Watson to greater variety of in-car systems

This just in: QNX has announced a new framework that will help speech recognition systems in cars understand a speaker’s intent. The framework extracts meaning from the driver’s spoken words, enabling in-car systems to set complex navigation destinations, create calendar appointments, dictate email or text messages, or even perform general Internet searches.

The framework, which is a component of the QNX CAR application platform, will enable in-car systems to take advantage of AT&T Watson, a multilingual speech engine that runs on a cloud-based server to provide high-quality, low-latency voice recognition.

Determination of the driver's intent starts on the server, where the Watson engine begins to analyze the driver's words and fits them to known patterns. The results are then handed off to the car, where the intent engine from QNX performs further speech analysis to determine how to act.

According to my colleague Andy Gryc, "the server-side analysis provided by AT&T Watson is optimized for complex scenarios, such as a navigation application in which the driver may verbalize destinations in hundreds of different ways. The QNX client-side analysis grants car makers greater flexibility, enabling them to adapt the AT&T Watson results to a variety of in-car applications, regional aspects, or personal tastes.”

The intent system will be offered as a component of the QNX CAR application platform in 2013. For more information, read the press release.

Find me a Starbucks!
QNX and AT&T have already done a lot work to bring the Watson speech engine to cars. For an example, check out this Engadget video of the QNX concept car (a modified Porsche 911), filmed at an AT&T event this past April:

Auto trivia, BlackBerry PlayBook tablet, and #QNXLive sessions

As we begin to look forward to a brand new year, we still have a couple of fun activities for you to keep a look out for as the holidays begin to wind down.

Friday, December 28 will be the last chance for you to win a BlackBerry PlayBook tablet in our automotive trivia sweepstakes. We’ll be tweeting out this year’s final trivia question on Friday at 1 p.m. ET, and if you respond back to @QNX_Auto with the correct answer, you will be entered into December’s drawing. More information can be found here: http://ow.ly/gl9sb.

Additionally, we still have two more #QNXLive Twitter sessions coming up on January 3 and January 11. On Thursday, January 3 at 1 p.m. ET, Linda Campbell, director of QNX strategic alliances, will answer your questions on the subject “Whose technology is in my car? A look at the partner technologies and capabilities found in the cars of today and tomorrow.” And then on Friday, January 11 at 1 p.m. ET live from CES 2013, Mark Rigley, director of concept development, will answer your questions on the new technology concept car that we’ll be unveiling at CES 2013.

We thank everyone who has participated in our #QNXLive sessions to date with Andy Gryc and Andrew Poliak. We had some great questions come in from @StephenBB81, @jmznvs, @BBABrian and @MitchCurtis20, and are looking forward to your additional questions. Remember, you can submit your questions now or day-of by sending a tweet to @QNX_Auto and using the hashtag #QNXLive. If your question is selected, we’ll be sure to give you a shout-out in addition to answering your question. More here: http://ow.ly/glaLk.

Here’s to a fantastic rest of the holidays and a very prosperous 2013!

TI’s Jacinto 5 automotive processor selected for Audi's “MIB High” infotainment system

Well, it couldn't happen to a nicer technology partner. Yesterday, Texas Instruments announced that the QNX-based MIB High system, the next-generation infotainment platform for Audi vehicles, is the first automotive system to incorporate the TI Jacinto 5 automotive infotainment processor. According to the TI press release, the Jacinto 5 plays a key role in the system’s architecture, which consist of a multimedia applications unit and a highly integrated radio-and-car-control unit.

If you’re unfamiliar with the Jacinto 5, it’s an automotive-qualified multicore processor based on an ARM Cortex-A8 core. The processor integrates a variety of automotive peripherals and connectivity options.

QNX’s role in the MIB High was revealed in 2011, when e.solutions announced that QNX Software Systems had been chosen to supply the system’s OS and multimedia engine. See my blog post on that announcement, where I explain why the architecture of MIB High is so cool.

And if you’d like to check out the MIB High first hand, may I suggest you take one of these for a test drive.

Volvo to ship self-driving cars in 2014

Yes, you read that right. According to an article published yesterday in the Wall Street Journal, the Swedish car maker has stated that, within two years, it will launch cars that can drive themselves at speeds of up to 31 miles per hour. It's all part of an ambitious plan to produce "accident free" vehicles by 2020.

I knew that some automakers were planning to roll out their first autonomous vehicles in the relatively near future. It seems that one automaker has decided to eliminate the "relatively".

Look ma, no driver!

Some of us talk about autonomous cars, some of us dream of owning one, and some of us actually get to ride in one. Andy Gryc is one of the latter. Head over to his blog to see a video he took while being chauffeured in a self-driving vehicle developed at the University of Parma — think of it as the ultimate in hands-free systems.

Would this be an awesome way to tour Italy, or what?

What if…

Imagine if your car could help you become more connected to friends and family — and to the road ahead. Enter a new video that peers into the not-so-distant future.

It blows my mind, but some people still see connectivity in the car as the enemy. They think that, the more connected the car, the more distracting and dangerous it will be. But you know what? Responding to their concerns is easy. I simply ask them what if.

For instance, what if connectivity helped you drive with greater situational awareness? What if it helped you sidestep traffic jams and axle-busting pot holes? What if it helped you detect a stop sign hidden behind a tree? And what if it helped you become more connected to the people important to you, as well as to the road and the cars around you?

When we talk connectivity at QNX, that’s the kind of connectivity we envision. It isn’t just about Bluetooth or Wi-Fi or LTE — that’s only the plumbing. Rather, it’s about keeping you in tune and in sync with your car, your environment, your business, your friends. Your life.

From out behind the curtain

The first of an interview series with the QNX concept team

Imagine if you went to a Rolling Stones concert and the entire band played behind a curtain. That would be totally weird, right? Well, we realized that much the same scenario was playing out with the QNX concept team. Their work, including the QNX concept car, has appeared in A-list venues like CES and Mobile World Congress, yet the team itself has remained largely behind the curtain. And that’s too bad, since the team members embody the qualities I like best about QNX. Innovation, for example.

So, in the spirit of setting things right, we decided to pull back that curtain and make some introductions. And where better to start than with Mark Rigley, the team’s director.

If I were to describe Mark in one word, I’d choose chutzpah. Or gumption. Or moxie. He is the antithesis of wait-and-see. To spot him in a room, just look for the guy who says, “Let’s do it!” when everyone else is still stuck in “maybe,” “might work,” or “I need to get back to you on that.” And when you think about it, that attitude fits the bill perfectly. Because when your job is to take something like a Porsche 911 (an example of automotive perfection, if ever there was one) and make it even cooler, you’d better have a measure of confidence in yourself — and in your team.

Indeed, if anything shines out from this interview, it is the awe and respect that Mark holds for his team members. (Okay, I’ll admit it. Something else shines brightly: Mark’s enthusiasm for the next QNX technology concept car. Did I mention the team is working on one?)

In-car infotainment and the art of doing more with less

Granted, the title for this blog post doesn't have the pizazz of, say, "Zen and the Art of Motorcycle Maintenance." (Are you old enough to even remember that book?) But it does capture the gist of a webinar that Andy Gryc will deliver next week.

His title for the webinar is "Squeezing high-end technologies into low-end infotainment systems." Admittedly, it's more direct than mine. Which is fitting, given that Andy has direct experience designing in-car systems. OnStar, for example.

But I digress. I'm sure you'd like to know what Andy plans to cover, so here's the overview:

Squeezing high-end technologies into low-end infotainment systems

Today's infotainment systems have it all – full multimedia, mobile device integration, POI-enabled navigation, speech recognition, high-resolution graphics, and cloud connectivity. The only problem is all of these features come with a big price tag.

Join Andy Gryc, automotive marketing manager, for this webinar, where he answers the question: Is it possible to build an infotainment system that meets today's customer demands with yesterday's price tag?

A 50-minute session (plus Q&A), this webinar covers a number of techniques to help slim down your next infotainment's BOM cost; it also suggests ways to target the luxury segment as well as the more cost-conscious, high-volume one with the same basic technology.

Date: Tuesday October 23, 2012

Time: 12:00 pm ET

Duration: 1 hour, including Q&A

Registration: Click here to register

Who should attend: Automotive software engineers and managers

The ISO 26262 functional safety standard: No way but up?

I was scanning some Google alerts the other day when my eyes stopped at an announcement from Freescale. The headline didn’t mince words: the Freescale Qorivva MPC5643L microcontroller, a 32-bit part based on the Power architecture, has become the first automotive MCU to receive ISO 26262 functional safety certification.

Did you notice? Freescale didn’t say only; they said first. Which suggests they see ISO 26262 as a growing trend in automotive. If so, I think they see right.

If you’re unfamiliar with ISO 26262, let me provide the Reader’s Digest version. First and foremost, it applies to automotive electronic or electrical systems that could pose a hazard (i.e. hurt people) if they malfunction. Examples include anti-lock brakes, traction control systems, adaptive cruise control systems, engine control units, and digital instrument clusters.

Will more automotive
components soon come
with stickers like this?

The standard isn’t concerned with how well such systems perform. Rather, it’s about reducing the risk, and mitigating the effects, of any malfunction that may cause injury or death. So even if something bad unexpectedly happens in a 26262-certified system — and the assumption is that bad things will happen, no matter how well the system is designed and tested — the system will minimize potential harm. For instance, consider the scenario where a high-priority software process enters an infinite loop and starts to gobble up CPU cycles. Obviously, it’s important to prevent this error from happening in the first place. But even if it does happen, the system should prevent the rogue process from starving other critical processes of CPU time. It should also achieve a graceful recovery from the failure state.

ISO 26262 applies to production passenger vehicles with a gross mass up to 3500 kilograms (7716 pounds). Anything else is out of scope. But while the scope is limited, the standard itself is comprehensive. It covers functional safety aspects of the entire development process, from requirements specification to product decommissioning. And in case you were wondering, it’s closely related to IEC 61508, the international safety standard with a very long history and which many other safety standards reference.

So why do I think that 26262 is on the ascent? For starters, the first edition of the standard was published less than a year ago, yet a silicon vendor has already spent the considerable effort to get an MCU certified. Achieving certification to a standard like ISO 26262 doesn’t come easy, so I assume Freescale did it only because they anticipate market demand. (Disclaimer: This statement isn’t based on any special knowledge of Freescale’s business, but is simply my opinion. Interpret it as such.)

TÜV Rheinland:
Also in the game

It doesn’t stop at Freescale. TÜV Rheinland, a global provider of technical services for safety-critical systems, now offers 26262 services (training, consulting, testing, certification, you name it) for a wide variety of automotive components in multiple geographies. And if TUV has gotten in the game, it’s a good signal that the 26262 standard has legs.

Meanwhile, the LinkedIn group dedicated to 26262 has more than 3600 members and grew by more than 50 members last week alone. If you visit the group, you’ll find engineers from automotive OEMs and tier ones looking for guidance on satisfying 26262 requirements — a sure sign that support for the standard is gearing up.

From what I can tell, things haven’t gotten to the point where a company has been mandated to have its automotive systems certified to ISO 26262. But it will happen. And chances are, it will snowball: the more companies that adopt the standard, the more others will feel the pressure and follow suit. Which means it’s only a matter of time before more ISO 26262 product announcements show up in my Google alerts.

So where is QNX going in automotive?

Want a short and sweet intro on what QNX is doing in the automotive industry? Then be sure to check out "A Look At The Near Future Of In-Car Technology," published this week in The Washington Post and in Motor Authority. (Same article in both cases, though Motor Authority has more pictures :-)

The article is based on an interview with my friend and colleague Andy Gryc. It covers the bases, from how QNX technology helps automakers project their brand identities to how it will enable a new generation of apps in the car.

Enough of my blather. Check out the article and let me know what you think.

Will adaptive cruise control spell the end of traffic jams?

Did you know that rear-end collisions account for about 30% of car crashes? For that reason alone, widespread adoption of adaptive cruise control (ACC) can’t come too soon. ACC helps prevent such collisions in two ways: 1) by maintaining a safe, preset distance from the car ahead; and 2) by applying the brakes quickly if that car comes to a sudden stop — more quickly, in fact, than most humans.

Good news is, ACC may soon become pervasive. The folks at Global Industry Analysts crunched some numbers and determined that annual installations of ACC systems will reach 6.9 million units by 2017.

Mind you, ACC isn’t just about safety; it’s also about traffic flow. For instance, a study by Suzuki and Nakatsuji (2003) suggests that travel times shrink significantly when at least 20% of vehicles on the road use ACC. And a study by Kesting et al. (2008) suggests that, in some scenarios, traffic congestion simply disappears when 25% of vehicles use ACC.

Example of adaptive cruise control
Source: Volvo

The picture isn’t all rosy, however. ACC may improve traffic flow, but not in every situation, such as merging from an on-ramp onto a freeway. That said, a study by L. C. Davis (2010) suggests that a technique called cooperative merging can significantly the improve the performance of ACC in this scenario. Meanwhile, a study by Jerath and Brennan (2010) suggests that the benefits associated with ACC may come at a possible cost — “self-organized” traffic jams. This effect, caused mostly by human behavior, may occur in a traffic system where most, but not all, cars use ACC.

Caveats aside, ACC systems continue to evolve. Some drivers tend to slam their brakes and use heavy throttle in traffic, creating congestive shockwaves that ripple down the highway. According to J.C. Power, newer versions of ACC help alleviate this problem by smoothly modulating brakes and throttle in stop-and-go traffic.

And now, a look at ACC from 1939…
If you think the concept of ACC is relatively new, think again. Over 70 years ago, GM created a “Futurama” exhibit for the 1939 World's Fair that showcased a scale-model highway in which cars automatically maintain a safe, efficient distance from one another.

GM predicted this technology would be in place by 1960. They got the timing wrong, but the idea right. Click the video to see a surprisingly prescient look at the car of the future — I’ve already bookmarked the spot for you:



What about you? Have you had much experience with ACC? And if so, has it helped or hindered your driving experience?