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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.

Toyota, Lexus expanding Takata airbag recall, re-notifying customers

Toyota is re-notifying owners and expanding its Takata airbag inflator recall for some regions. The renewed campaign covers 247,000 examples of the Toyota Corolla, Matrix, Sequoia, Tundra and Lexus SC430 that are located in southern Florida, along the Gulf Coast, Puerto Rico, Hawaii, the US Virgin Islands, Guam, Saipan and American Samoa. All of the models come from the 2001-2004 model years and have potentially faulty Takata-made inflators on the front passenger side. According to the company, testing shows the problem warrants "immediate action," and its press release says, "this action intensifies Toyota's efforts to reach customers and remedy previously recalled vehicles, and a small number of newly included vehicles."
According to Toyota, it submitted some recalled inflators to Takata for testing, and it found a high probability of rupturing in high humidity areas. The automaker said it had no reports yet of injuries or fatalities related to the problem.
This is Toyota's third inflator recall this year. In June, it called in for repair the same vehicles from the 2003-2005 model years in high-humidity areas, and it conducted a separate campaign nationwide for the parts in additional models. In April 2013, it also announced a fix campaign for 1.73-million vehicles worldwide for the same issue.

Toyota and Lexus will have standard automatic braking by 2017

Last week, NHTSA and IIHS announced that 20 auto manufacturers and three agencies had agreed to include automatic emergency braking (AEB) as standard equipment by 2022. Toyota was one of those 20 companies, but this week they upped the AEB ante: Nearly every Toyota and Lexus model and trim level will have standard AEB by 2017. That's next year. Many models already offer AEB as part of the Lexus Safety System+ and Toyota Safety Sense packages, but consumers have had to pay extra for these options (unless they leased a Toyota Mirai hydrogen fuel-cell vehicle; it already has AEB as standard equipment.) By the end of next year, all but the Lexus GS, Toyota 4Runner and Toyota 86 — which was developed together with Subaru — will have AEB installed at no extra cost. (Interestingly, the new Prius Prime unveiled at the New York International Auto Show has Safety Sense as an option rather than standard equipment.) The AEB function is part of Toyota's safety suites, which will be included in 25 Lexus and Toyota models. Both makes have a precollision system that detects the possibility of collision with the car ahead and engages the brakes if the driver doesn't react quickly enough, as well as lane departure alerts and automatic high beams. Toyota's move leapfrogs ahead of Honda making its Honda Sensing system, which includes AEB tech, available as a flat $1,000 option on every Civic Sedan. Related Video: This article by Kristen Hall-Geisler originally ran on TechCrunch, a leading technology media property, dedicated to obsessively profiling startups, reviewing new Internet products, and breaking tech news.