Engineering & Technology

High-Resolution Streaming Video

Last week, Cadillac shared some news to pique interest in the CT6 and that is the inclusion of a high-resolution streaming video to the function of the rear view mirror. Cadillac says that the technology will eliminate the usual sight obstructions drivers face, including front and rear sitting passengers, their head rests, as well as the front, center and rear pillars.

Cadillac claims that the video will provide a vantage point for drivers similar to what is experienced when operating a convertible with its top down. “In addition to the increased field of view, the technology eliminates any rear seat, rear pillar or passenger obstructions, allowing the driver an unimpeded view of the lanes behind and traditional blind spots,” explained Travis Hester, Cadillac CT6 executive chief engineer.

Utilizing a camera with a high dynamic range, the video feed will reduce glare and permit a sharper image in low-light circumstances. That makes for a marked improvement over automatic dimming rear view mirrors.

The video will show up within the mirror and offer a 1280- by 240-pixel TFT-LCD display with 171 pixels per inch and combine that with an HD camera specifically designed to meliorate rear view lane width and to magnify low-light situations.

Eliminating Water Problems

Rain and other water conditions can wreck even the best intentioned plans. Unlike most rear view cameras that become clouded or otherwise obscured due to water, the Cadillac CT6 will make use of a water-shedding hydrophobic coating, applied to the camera to keep it clean under all driving circumstances. This is important, because under foul weather conditions, the benefit of streaming video would likewise be eliminated.

Cadillac acquired 10 patents for its innovative streaming video technology. One patent was received for the streaming video mirror itself; the other nine were for video processing, including glare reduction, dewarping and the camera hardware design.

Video Deactivation Possible

Rest assured, if you buy a CT6 and decide at any time that you don’t want to use the streaming video you will be able to deactivate same by flipping a toggle found on the underside of the rear view mirror. The unit will then immediately transition to an electrochromatic rear view mirror.

The CT6 is a rear-wheel drive model with optional all-wheel drive. The sedan will make use of lightweight materials as well as new body construction techniques to improve vehicle drive dynamics and safety with the added benefit of reducing fuel consumption. It will be built upon an all-new vehicle architecture separate from its other car lines.

When the CT6 debuts, it will also begin a change in Cadillac’s naming convention. All future car models will adopt the new nomenclature when revised models are introduced. This will include the current ATS, CTS and XTS. Crossovers and sport utility vehicles will also gain new names and the transition should be completed by about 2020.

Photo courtesy of GM Corp.

GM, Ford and Chrysler Embrace Fuel Saving Innovation.

Fuel prices are continuing to fall, dropping below $2.50 per gallon for regular grade gasoline in some areas. That’s just the kind of move that has some shoppers looking at larger and less efficient vehicles, perhaps advancing certain auto trends not yet foreseen. The drop in fuel prices, expected to last for several years, won’t stop car manufacturers from innovating, however. Instead, there are a number of changes underfoot that will continue even if gas prices continue to trend downward.

Updated Engines for Chrysler

Ram 1500 innovation.

This small diesel powers select Ram 1500 models.

Of all the major manufacturers, the Chrysler Group has the heaviest exposure to larger vehicles. That’s good for profits, but it is bad in helping the company reach mandated corporate average fuel economy (CAFE) ratings. The problem becomes magnified in each succeeding year up to 2025, when manufacturers must find a way to produce and sell passenger vehicles averaging 54.5 miles per gallon.

Chrysler needs to move away from V-8 engines or at least offer powerful, smaller engines that can step in as well. At present it has a pair of V-6 engines that are likely to play a much larger role in helping Chrysler reach its goals. Specifically, Pentastar family engines displacing at 3.2 and 3.6 liters will receive important innovations.

Those upgrades will bring in a host of technologies such as turbocharging and direct injection notes AllPar.com. Ford makes use of these technologies in its EcoBoost engines, enabling it to provide smaller and more efficient engines with no loss in overall power. Currently, both Pentastar engines are naturally aspirated; making new technologies available will mean supplementing its current V-8 line of HEMI engines. Eventually, those larger engines might be dropped as the CAFE mandates are raised.

Continuously Variable Transmission for Ford

CVT innovation.

Toyota pairs its 1.8-liter engine with a CVT.

Just as Toyota added a continuously variable transmission (CVT) to the Corolla line beginning in 2014 and has enjoyed a nice boost in fuel economy, Ford may do likewise with some of its own models reports Automotive News. Much attention has been directed Ford’s way with the upcoming release of 9- and 10-speed transmissions. Those transmissions, however, will be paired with its larger engines.

A CVT could find its way in such cars as the Ford Focus and Fiesta. Certain versions of those models already get at least 40 mpg on the highway and a CVT could advance those numbers. CVT technology has been used by Nissan for more than 20 years, but other automakers have had mixed results, in part because of consumer hesitancy.

For instance, CVTs don’t use gear points as do standard automatic transmissions and cause a rubber band effect when pressing on the accelerator that returns a pulling sensation. Engines tend to sound louder and the resultant transmission lag annoys some people. Toyota has found a way to limit that sensation and that could be something Ford has figured out too.

GM Does Diesels

As gas prices fall, diesel prices drop too. Still, diesel fuel now carries a mark up of about 20 percent even as such engines are 30 to 35 percent more fuel efficient than comparable gas engines.

Chevrolet Cruze innovation

GM continues to use diesels in smaller vehicles including Cruze.

GM has long been committed to diesels with its heavy-duty pickup trucks. It also offers a diesel variant for the Chevrolet Cruze. Come 2015 and you will see an expanded diesel application in its midsize pickup trucks — Chevrolet Colorado and GMC Canyon. But it may not stop there.

Indeed, ever since the Ram 1500 received a 3.0-liter six cylinder diesel option, competing automakers have been studying doing likewise. GM, along with its Isuzu partner, jointly manage DMAX — a company that produces the 6.6-liter turbo diesel V-8 engine found in heavy-duty Chevrolet and GMC pickup trucks. A 2.8-liter turbo diesel four will power the midsize trucks; a 2.5-liter turbo diesel four is available in other markets, such as in Thailand.

What GM needs is a V-6 diesel motor and it once has access to one when it shared ownership of VM Motori with Fiat. In Oct. 2013, Fiat acquired GM’s 50 percent share in the company, effectively shutting GM out of the market. Still, GM likely has a V-6 turbo diesel on its drawing board, perhaps based on the smaller fours and measuring about 3.8 liters. Expect GM to green light production if diesel demand increases, but perhaps not until fuel prices are raised across the board again.

Big Three Innovation

Although engines and transmissions will play a significant role in improving fuel economy, further innovations will come through vehicle lightweighting. We’re seeing some of that right now in the aluminum-bodied 2015 Ford F-150. Ford’s competitors — domestic and foreign — are responding by choosing high-strength, but lighter weight steel, carbon fiber and are pursuing other fuel saving initiatives. These efforts will continue even as uel prices are sinking, what is likely to prove a temporary pull back as automakers prepare for much higher CAFE standards.