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Toyota R&D shows off free piston engine linear generator for future EVs

We often hear how an electric vehicle powertrain architecture allows vehicle designers much more freedom than a traditional ICE powertrain does. With differently shaped battery modules and small electric motors, there are lots of way to put the pieces together. With today's plug-in hybrid technology, engineers still need to put a decent-sized ICE somewhere, but new technology from Toyota could free up the gas-electric vehicle designers of the future. Presented at the recent SAE World Congress in Detroit, the idea from Toyota Central R&D Labs Inc. and involves what is called a Free Piston Engine Linear Generator (FPEG). Think of it as a sort of one-cylinder, two-stroke mini-engine that can work either as a generator (thank to magnets and a linear coil) or to directly drive a vehicle. The current prototype is a 10-kW unit that Toyota say would provide enough power to get a B- or C-segment electric vehicle up to highway speeds (75 miles per hour) when paired up to offer 20 kW. Pairing the FPEGs is also important to minimize vibrations. One system tested by Toyota had a 42 percent thermal efficiency, but the engineers are working to improve the overall efficiency even further. You can watch an animated video of the piston in action here (click on "Outline") and see the SAE papers here and here. More technical details are available at Green Car Congress. News Source: Toyota Labs via Green Car CongressTip: Thanks, Joe V. Green Misc. Auto Shows Toyota Technology Emerging Technologies Electric generator

2018 Jeep Grand Cherokee vs. midsize crossovers and SUVs: How they compare on paper

In a world full of SUVs and crossovers all competing for similar buyers in similar segments, there are still some models that find their own little niches that lack such fevered fighting. The Jeep Grand Cherokee is one of those vehicles. It's an oddball in the sense that it's a midsize crossover SUV with a unibody chassis and independent suspension, but it still uses rear-wheel-drive and four-wheel-drive systems and has some off-road capability. It's also a midsize crossover, but only offers two rows of seats. Despite the Grand Cherokee's odd nature, we did come up with a few crossovers and a classic SUV that seem to match the Jeep in size and pricing. We looked at the numbers to compare them on paper. You can find the raw data in the chart below and deeper analysis after that. As always, this is just a comparison of specifications and you'll want to check out our driving impressions of each car if you're getting serious about one or all of these vehicles. And if you want to compare any of these against other vehicles, be sure to check out our comparison tool. Engines and Drivetrains When comparing base engines, the Jeep Grand Cherokee's 295-horsepower is the clear power winner, beating the next most powerful 4Runner by 25. But in torque, the 4Runner takes the laurels with 278 pound-feet, narrowly edging out the Edge's (no pun intended) turbocharged 2.0-liter four-cylinder's 275. That four-cylinder in the Edge will also be picking up another 5 horsepower for 2019, but it still won't win this power contest. Both Ford and Jeep also have another advantage in the fact that you don't have to settle for the base powertrain. Ford has two other engine options, a naturally aspirated V6 and a twin-turbocharged V6, the latter of which outguns the Grand Cherokee's gasoline V6 in both power and torque. That engine will also be bumped up to an impressive 335 horsepower and 385 pound-feet of torque. View 20 Photos The Jeep has the most engine options, though, and it's the only to offer V8 and diesel options. On most Grand Cherokees, the options include a 5.7-liter V8, which is only available with 4WD. It makes 360 horsepower and 390 pound-feet of torque, outperforming even the 2019 Edge's twin-turbo V6. The diesel engine doesn't make much power with just 240, but it makes up for it with torque at 420 pound-feet. And of course there are the SRT and SRT Trackhawk models with even bigger and supercharged V8 engines respectively.

Toyota GT86 gets TRD treatment in UK

As dearly as we love the Toyota GT86 / Scion FR-S / Subaru BRZ franchise, we readily admit we wouldn't look sideways at a model with a bit more firepower. And while that's not quite on the table yet, Toyota has been busy amping up the visual firepower of its rear-drive coupe with a whole host of TRD parts. To this point, that's been a largely à la carte affair, but the automaker's UK outpost has just announced a special-edition model that allows our British friends to pick up the whole shooting match all in one go.
The Toyota GT86 TRD will only be available in black and white, and just 250 examples are to be built. As you can see from the excellent gallery above, the catalog of look-faster bits include a more aggressive front air dam, side skirts, rear bumper fascia, spoiler and unique 18-inch forged alloys. Additional flourishes include a TRD shift lever and branded radiator cap. The sole concession to actual performance? A "fast-response quad exhaust" that might only improve things audibly - 0-62 mph is apparently unchanged at 7.7 seconds, and the top end is still 140 mph for the manual transmission model. (The auto gets by with 8.4 seconds and 130 mph).
Pricing? Glad you asked. £31,495 for GT 86 TRD manual, £32,995 for the automatic - that's nearly $50,000 US for the tripedalist and just over for the automatic. (Those are heady prices, but bear in mind that UK MSRPs and taxes are generally significantly higher than their US counterparts). If the standard GT86 is more your speed, it still rings up at a more affordable £24,995 - roughly $39,500 - leaving plenty of budget for actual performance parts. No word yet on North American availability of a special TRD model, but we've got a call in...