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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

Automakers' sound systems: Crank it, don't yank it

Years ago, one of the first things most music lovers did after buying a new vehicle was drive to an aftermarket stereo shop to get the crappy stock components swapped for better gear. And you'd typically get not only better sound but also more bang (and boom) for your buck. But in the past decade or so, the overall quality of OEM audio has dramatically increased, while car electronics became more complex, removing the incentive for most new vehicle owners — and all but the most hardcore DIYer — to start from scratch. In 2010, I did a comparison of the average costs for OEM electronics vs. similar offerings from the aftermarket, and back then automakers' stock premium systems were by far the best bargain — and are probably an even better value now. The premium 14-speaker, 1,200-watt JBL system in the all-new 2019 Toyota Avalon is a prime example of this trend. It's standard on the top two Limited and Touring trims and is available as a $680 audio upgrade on the XLE and XSE. I doubt you can even buy 14 speakers and 1,200 watts of amplification from the aftermarket for 700 bucks, much less have it all installed. And because the system is bundled with Toyota's Entune infotainment system, Apple CarPlay and a surround-view camera, removing the head unit means you would likely lose these features. Another advantage of OEMs and their audio partners is they can design the car around the audio system. In the past, automakers would typically place speakers where convenient for packaging, not for optimal sound reproduction, and audio engineers were forced to compromise. But as with the Avalon's premium JBL audio system, this is starting to change. At a recent behind-the-scenes peek for media into the process of developing the system, Toyota and Harman engineers delved into the minutia of sealing the inner panel of the front doors to create an enclosure for 6x8-inch woofers, making space in the pillars for JBL horn tweeters and extensively measuring the acoustic properties of the interior to tune the sound to the space. I'm met some creative and skilled car stereo installers, but none with a degree in psychoacoustics. The system is also the first to feature Quantum Logic Surround that creates a multi-channel listening experience from two-channel sources. And it includes Harman's Clari-Fi processing that "rebuilds key details lost" in compressed audio formats used by streaming music services and MP3s.

Amazon Alexa will become your co-pilot in Toyota, Lexus cars

A number of carmakers have introduced Amazon Alexa voice commands that can activate the locks and climate control on their cars, but Toyota is going a step further with Alexa integration by bringing Alexa into the car. Starting in 2018, Toyota will join the likes of BMW by offering the full Alexa voice-controlled app in Toyota and Lexus vehicles with either EnTune 3.0 or EnForm 2.0 infotainment systems. Though Toyota doesn't specifically say which models, we suspect the Camry and Sienna will be the first, since they're the only Toyotas with EnTune 3.0. With Lexus, the LC, NX, RC, and LS models all have available EnForm 2.0, so any or all of those could get Alexa this year. Toyota suggests a number of ways users could use Alexa in the car, such as for taking notes and setting reminders, activating apps, or for controlling other smart devices, such as the heating and cooling on your house. That suggestion rings strongly to those of us in the midst of the bomb-cyclone winter storm. We imagine you'll probably even be able to order goods from Amazon, too. One thing that is strange is that Toyota has made this leap in connectivity, and yet you still can't get Apple CarPlay or Android Auto on any Toyota or Lexus. This is especially odd as it's safe to assume more people own and use Apple and Android products on a daily basis and on the road than Amazon Alexa. Not to mention the fact that almost every other automaker offers both systems on their vehicles. Either way, mobile Alexa presents some interesting possibilities and is sure to be appealing to fans of the Amazon service. And while only a few models will be available with it in 2018, Toyota and Lexus will expand availability in 2019. Related Video: