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GM Ultium tech can scavenge heat from everywhere, even you

GM likes to give us tidbits about its Ultium platform from time to time, and today it’s telling us about the platformÂ’s ability to capture waste heat from the propulsion system. In addition to capturing from the propulsion system, it can also capture humidity from both inside and outside the vehicle and even from passengersÂ’ body heat. Yes, you, your family and/or your friends are a usable heat source as far as GM EVs are concerned. It then deploys the heat in an advantageous way. If at this point, youÂ’re screaming, "Heat pump!" youÂ’d be right. WeÂ’re talking about an elaborate heat pump system that GM is using for its Ultium-based vehicles. Every Ultium-based GM vehicle gets this system that is covered by 11 patents and four publications. The waste heat it collects is used in a number of ways, but its primary use is to heat the cabin quickly and efficiently. GM claims it can heat the cabin of its Ultium-based vehicles quicker than vehicles with traditional internal combustion engines. Plus, when put to use, GM claims that using the heat pump provides its EVs with up to 10% more range than theyÂ’d have without. Beyond heating the cabin, the heat pump is capable of putting waste heat to use by preheating the battery prior to charging so that you can charge quicker. The system can even cool the propulsion system in preparation for Watts to Freedom (WTF) launch control starts. GM says this was vital in helping the Hummer EV achieve its bonkers 0-60 mph time of about 3 seconds. “Having a ground-up EV architecture gives us the freedom to build in standard features like UltiumÂ’s energy recovery capabilities,” said Doug Parks, GM executive VP of global product development, purchasing and supply chain. “This helps us squeeze more efficiency, performance and overall customer benefit out of our EVs.” GM says itÂ’s been developing heat pump technology since the EV1 and its heat pump. This is the modern evolution of that technology, and GM says itÂ’s going to be implemented in every Ultium-based vehicle as a standard feature. Related video: Green Cadillac Chevrolet GM GMC Technology Electric Future Vehicles

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.

The UAW's 'record contract' hinges on pensions, battery plants

DETROIT - After nearly four weeks of disruptive strikes and hard bargaining, the United Auto Workers and the Detroit Three automakers have edged closer to a deal that could offer record-setting wage gains for nearly 150,000 U.S. workers. General Motors, Ford Motor and Chrysler parent Stellantis have all agreed to raise base wages by between 20% and 23% over a four-year deal, according to union and company statements. Ford and Stellantis have agreed to reinstate cost-of-living adjustments, or COLA. The companies have offered to boost pay for temporary workers and give them a faster path to full-time, full-wage status. All three have proposed slashing the time it takes a new hire to get to the top UAW pay rate. The progress in contract talks follows the first-ever simultaneous strike by the UAW against Detroit's Big Three automakers. The union began the strike on Sept. 15 in hopes of forcing a better deal from each major automaker. But coming close to a deal is not the same thing as reaching a deal. Big obstacles remain on at least two major UAW demands: restoring the retirement security provided by pre-2007 defined benefit pension plans, and covering present and future joint- venture electric vehicle battery plants under the union's master contracts with the automakers. On retirement, none of the automakers has agreed to restore pre-2007 defined-benefit pension plans for workers hired after 2007. Doing so could force the automakers to again burden their balance sheets with multibillion-dollar liabilities. GM and the former Chrysler unloaded most of those liabilities in their 2009 bankruptcies. The union and automakers have explored an approach to providing more income security by offering annuities as an investment option in their company-sponsored 401(k) savings plans, people familiar with the discussions said. Stellantis referred to an annuity option as part of a more generous 401(k) proposal on Sept. 22. Annuities or similar instruments could give UAW retirees assurance of fixed, predictable payouts less dependent on stock market ups and downs, experts said. Recent changes in federal law have removed obstacles to including annuities as a feature of corporate 401(k) plans, said Olivia Mitchell, a professor at the University of Pennsylvania Wharton School and an expert on pensions and retirement. "Retirees want a way to be assured they won't run out of money," Mitchell said.