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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

Cadillac adds torque-number badging to most new models starting in 2020

Few phrases describe huge swaths of America better than a phrase spotted on the back of a top-fuel dragster at an NHRA event: "You can never have too much horsepower or ammunition." If Cadillac CEO and wily Canuck Steve Carlisle has his way, the revised phrase would substitute "torque measured in Newton-meters" for "horsepower." Starting with the 2020 model year, America's luxury brand will add torque figure badges to CT and XT models, beginning with the XT6. The badge above kinda almost sorta represents the torque produced by the luxury crossover's 3.6-liter V6. That badge did not appear on the XT6 we photographed at the Detroit Auto Show. In U.S. parlance, twist in the XT6 comes to 271 pound-feet. Translated to Newton-meters, that's 367 Nm. Then round that up to the nearest 50, which Cadillac will do, and one arrives at 400. True, the rounding prevents a future of number jumbles like the 2020 XT6 367 vs. the 2021 XT6 419T. Nevertheless, we don't know why Cadillac is rounding to the nearest 50 instead of the nearest 25, since 50 Nm is about 37 lb-ft and could conceal a decent torque increase between model years. A "T" denotes turbocharging, and we imagine there'll be designations for hybrids and electric cars. We think most modern attempts at engine-based nomenclatures soon get as complicated as ciphers or come unmoored from their original scheme. And based on our experience with The Average Car Buyer, they don't care. A bigger number, no matter what that number represents, means more, which is the important thing. Because America, right? Maybe not. Carlisle said, "We're not talking about displacements any more," and the new badging will give consumers "a clear understanding of the power differences across the lineup." The brand believes torque provides a better comparison between ICE, hybrid, and EV powertrains and "the balance between fuel economy and performance." As for the immigrant unit of measurement, Carlisle told CNET, " It's metric, it's universal, it's global, we have to think about all the markets that we're doing business in." Oh, and, "Engineers certainly prefer Newton-meters." The new nomenclature will not be applied to V-series models or the Escalade, because the CEO holds that "special cars get special names." We should probably take a moment to reassure the CT and XT models that Steve Carlisle thinks you're all special, too. Just a different kind of special.

GM recalling 117,000 sedans, crossovers, SUVs, pickups and vans

General Motors has issued a stop-sale to dealers and has notified the National Highway Transportation Safety Administration of its intention to recall 117,000 vehicles in the United States, Canada and Mexico. Of those vehicles, only 4,500 are at dealerships.
The affected vehicles include the Cadillac CTS and Chevrolet Impala sedans, fullsize SUVs (Cadillac Escalade, Chevy Tahoe and Suburban and GMC Yukon and Yukon XL), Lambda-platform crossovers (Chevy Traverse, Buick Enclave and GMC Acadia), heavy-duty pickups (Chevy Silverado HD and GMC Sierra HD) and fullsize vans (Chevy Express and GMC Savana). The sedans and body-on-frame SUVs include model years 2013 and 2014, while the CUVs, heavy-duty pickups and vans are limited to MY2014.
GM confirmed the recall to Autoblog via an emailed statement (which we've included below). According to the statement, the issue at hand in what is the company's 69th recall of 2014 covers the chassis-control module. Automotive News is reporting that a problem in the chassis-control system could cause a short in the module, which could cause the engine to stall or fail to start. The fault could also affect the trailer-brake control, provided it's equipped.