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Rebooted Apple program gets permit to test autonomous vehicles in California

For a while, Apple has been pursuing autonomous vehicle technology, but has more or less tried to keep the specifics of those ambitions under wraps. We did learn last fall that the company was killing off plans to build its own car, and clues about its program to develop a self-driving system popped up since. Today, though, we have more concrete information, as the California DMV has issued Apple a permit to test self-driving cars in the state, as TechCrunch reports. In a document released by the DMV, the tech company joins a number of others in California with approval to test autonomous vehicles. Apple will test its systems on three cars, each a 2015 Lexus RX540h, with six approved drivers. Presumably, those cars will be on the road quite a bit, as gathering lots of data is crucial to developing a working system. Per California rules, the company will have to provide accident reports, as well as a log of every instance that a human driver has to take over driving duties from the autonomous system in what the DMV calls a "disengagement report." Those reports will be made public, so we'll be able to glean a little more information about Apple's progress once they're available. Related Video: News Source: TechCrunchImage Credit: GABRIELLE LURIE/AFP/Getty Images Green Lexus Technology Emerging Technologies Autonomous Vehicles California

Lexus NX debuts in turbocharged and hybrid guise

Lexus showed off its polarizing new NX at the 2014 Beijing Motor Show, trotting out both the turbocharged 200t model (Lexus' first production turbo) alongside the hybrid-powered 300h.
We still don't know a great deal about the turbocharged model, aside from the fact that the engine underhood is a 2.0-liter four-cylinder, although we're hoping to get details sooner rather than later. For reference, the 2.0-liter turbo in the BMW X1 pumps out 240 horsepower while the four-pot turbo in the Mercedes-Benz GLA250 turns out 208 horsepower, which leads us to think we should expect the Lexus to fall somewhere between these two figures.
If Lexus' naming strategy in the past rings true here, though, we can confidently say the 300h will use a 2.5-liter four-cylinder Atkinson cycle engine with an electric motor and lithium-ion battery, just like the Lexus ES300h and Toyota Avalon Hybrid. That should mean around 200 system horsepower and well over 30 miles per gallon, although it's probably too early to predict economy with any degree of certainty.

8 things you should know about the Lexus LC 500h powertrain

Lexus unveiled the LC 500h today in The Netherlands, and I got to take a look inside its new hybrid system. On one hand it seems like a box of magic – it combines two seemingly incompatible transmission types into one package. But that's also the ingenious simplicity of the thing. We don't have all of the details on how it all works yet, but here's a rundown of the high points.Efficient business in front, low-key party in the back. What makes it all work is the mullet of transmissions. For the new hybrid transmission, Lexus used the Toyota Hybrid Synergy Drive/Lexus Hybrid System – which consists of an e-CVT with a planetary gearset and two electric motors (one for charging the battery, the other for motivation and regen) – and grafted a conventional four-speed automatic onto the back. The two units actually coexist in one package, with the e-CVT making things efficient and the automatic expanding the capabilities. So at the low end, the system can deliver more torque, and the engine can also run at lower rpm on the highway. It's all thanks to those fixed gear ratios, and it's surprisingly simple.Except it's not that simple. This is where the virtual gear ratios come in. Like current Lexus hybrids, the system has ratios it can call up with the e-CVT. In this case, there are six virtual ratios to complement the four real physical ratios, for a total of 10 "gears" at the transmission's disposal. (Not coincidentally, the V8 LC 500 coupe has a 10-speed automatic.) One of the four fixed gears is always engaged when the car is moving, so the 10 ratios come about from combinations of what the e-CVT in front and the automatic in the back are doing. In other words, all 10 ratios are variations on the four fixed gear ratios, which means that all 10 gears could be considered virtual.It won't use all the gears all the time. In Eco mode, the car will start off on electric power and skip the first couple of "gears." When it's set to Sport or Sport +, the engine will be engaged from a stop and the transmission will select the lowest ratio. The sportier modes will also ignore the top couple of gear ratios.It can drive faster with the engine off. In a Lexus GS 450h with the Lexus Hybrid System, for example, at speeds above 62 mph or so the engine has to start up. This is because something needs to take up some slack from the battery-charging motor-generator or else it will start spinning too quickly.