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Chevy's low-cost pedestrian avoidance to debut on 2016 Malibu

The mainstreaming of safety technologies that began on luxury vehicles will get a big boost from General Motors later this year. The General says it plans to offer 22 driver assistance systems across its product portfolio of 2016 models, starting with the redesigned Chevrolet Malibu - the one that we know will keep tabs on teenagers for the benefit of parents. Pedestrian avoidance will be another of its available options. Instead of kitting the sedan out with numerous and expensive radar arrays, the GM system uses the camera mounted next to the rearview mirror that is already used for the lane-keeping function. New software lets it detect pedestrians, and when it detects a potential collision with one, it can alert the driver and brake autonomously if the driver doesn't react. Eventually, engineers want to give it the ability to do the same with cyclists. Because it uses existing hardware updated with new code, GM says the application costs "a few hundred dollars." GM demonstrated the Front Pedestrian Braking preventing a crash with a dummy pedestrian at speeds up to 15 miles per hour. Automotive News reports that it will reduce the severity of impact up to 40 miles per hour, but "may not be of much use in collisions at higher speeds." That feature will also join the options list of the Cadillac CT6. The press release below has more on GM's driver tech soon on the way. Related Video: GM Paving Way to Smarter and Safer Driving at All-New Active Safety Test Area 22 crash-avoidance technologies offered on 2016 Chevrolet, Buick, GMC and Cadillac models MILFORD, Mich. 2015-07-24 – Chevrolet, Buick, GMC and Cadillac will offer 22 different active safety technologies across their 2016 model year U.S. lineups, ranging from driver alerts to those that automatically intervene and assist the driver in critical situations. Safety engineers will develop and test these and other safety technologies for products around the world at GM's new, 52-acre Active Safety Test Area at its Milford Proving Ground near Detroit. The $14 million facility officially opened Friday. "Our comprehensive safety strategy of helping customers before, during and after a crash continues," said Jeff Boyer, vice president of GM Global Vehicle Safety.

Autoblog Minute: VW finds CO2 'irregularities', Takata dropped by automakers, SEMA recap

Volkswagen's diesel emissions scandal gets a new wrinkle, US regulators hit Takata Corporation with a substantial fine, and we head to Las Vegas for a look at tuner paradise at the 2015 SEMA show. Autoblog senior editor Greg Migliore reports on this edition of Autoblog Minute Weekly Recap. Show full video transcript text [00:00:00] Volkswagen's diesel emissions scandal gets a new wrinkle. US regulators issue a significant fine to Takata Corporation. And we take a peek inside tuner paradise at the 2015 SEMA show. I'm senior editor Greg Migliore and this is your Autoblog Minute Weekly Recap. The VW diesel emissions scandal, first brought to light in September, gets a new wrinkle, as an internal investigation by the German automaker revealed [00:00:30] irregularities in CO2 emissions that could affect approximately 800,000 vehicles. VW estimates the issue could pose a 2-billion euro economic risk. VW claims that most of the vehicles affected have diesel engines, but industry analysts say a 1.4-liter gas engine is also affected. VW says that fuel consumption figures were set too low during the CO2 certification process. During all of this, sales of some diesel-powered Volkswagen, Audi, and Porsche models [00:01:00] have been halted. Takata Corporation is back in the news in connection with its deadly airbag scandal. Federal regulators fined Takata $70 million. If the parts supplier does not comply, the fine could balloon to $200 million. Takata was also dropped this week by its biggest customer, Honda. And now, Toyota and Mazda will be following Honda's lead in dropping Takata. We're also hearing that Mitsubishi and Subaru are considering a switch in air-bag inflator suppliers. SEMA 2015 [00:01:30] came and went. We saw offerings from Mopar, like the AWD Challenger concept. Honda unveiled a Ridgeline that it will race at the Baja 1000, which gives us a hint at what future production model could look like. The celebrity presence was also felt in Vegas as it always is. Kid Rock brought a Duramax Diesel Chevy Silverado, and Acura restored and presented Ludacris with his now famous 1993 Acura Legend. Those are the highlights from the week that was. Be sure to come back on Saturday for my full recap, [00:02:00] where I'll have some added insight into Hyundai's foray into the luxury sector. For Autoblog, I'm Greg Migliore. Autoblog Minute is a short-form video news series reporting on all things automotive.

Chevy's 6.6-liter Duramax is pretty much all new

To say there's a heated battle in heavy-duty pickups is an understatement, with Chevrolet, Ford, and Ram constantly trading blows of increased torque, horsepower, and towing capacity. The latest salvo is the revised, more powerful turbo diesel 6.6-liter Duramax V8 in the 2017 Chevy Silverado. It has 910 pound-feet of torque, an increase of 145, putting it nearly level with the Ford Super Duty. Here's a closer look at where those gains come from. How exactly did Chevrolet add all that torque plus 48 horsepower? The automaker essentially took a fine-tooth comb to the entire engine. Chevy says it changed 90 percent of the V8, and the cumulative effect of those small changes adds up to big increases. As you might guess, the turbocharger is updated. The larger unit features electric actuation of the variable nozzle turbine (VNT), and what Chevy calls a double axle cartridge mechanism that separates the VNT moving parts from the housing. That helps with heat performance as well, with a claim that the exhaust side of the turbo can run continuously up to 1,436 degrees Fahrenheit. Helping that cause are six exhaust gaskets made of Inconel - an nickel alloy that contains chromium and iron – and upgraded stainless steel for the exhaust manifold. Despite having the same cast iron cylinder block, albeit with some minor enhancements, the engine has new cylinder heads, pistons, piston pins, connecting rods, and crankshaft, which have all been upgraded to handle 20 percent higher cylinder pressures. Alongside the increase in pressure, Chevrolet also increased the cylinder head's structure with a honeycomb design. The pattern features high-strength aluminum with dual layer water jackets that not only improve strength, but also optimize water flow for better cooling. For 2017, the cylinder head also benefits from integrated plenum that aids the engine in getting more air under heavy loads. The cylinder head isn't the only component to get a minor update, as the pistons have a larger diameter pin for improved oil flow. The same detailed improvements has been bestowed to the humble connecting rods (second in our hearts only to the inanimate carbon rod). The new design has the bolts oriented roughly 45-degrees to the rod instead of parallel. The angle split design, as it's called allows for easier passage through the cylinder.