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Toyota to buck engine downsizing trend, may go larger and turbo-free

Turbocharging isn't really Toyota's specialty, and the Japanese automaker isn't being shy about acknowledging it. Koei Saga, a senior managing officer in charge of drivetrain research and development, says that eschewing turbos and increasing displacement of engines using the Atkinson cycle can produce better power gains without sacrificing fuel economy, Automotive News reports.
Toyota is investing heavily in larger-displacement Atkinson-cycle engines in addition to turbocharged engines, but Saga doesn't think the automaker will use turbocharging across many product lines. He apparently remains unconvinced that the technology "makes the world better."
In Toyota's eyes then, Atkinson cycle engines do make the world better, and here's how. Their pistons complete four processes - intake, compression, power and exhaust - in one revolution of the crankshaft, and the power stroke is longer than the compression stroke. Traditional Otto cycle engines require two crankshaft revolutions to accomplish those same four operations and have equal-length compression and power strokes. Atkinson cycle engines are more efficient, but less power dense, though increasing displacement can offset that shortfall.

Toyota responds to video of Highlander ramming house [w/video]

There are, as they say, two sides to every story, so after we posted a video on Monday showing what an owner claimed to be a case of unintended acceleration causing her Toyota Highlander to crash into a house twice, Toyota reached out to us revealing some additional information about the incident.
Following this crash, which took place back in November, Toyota had this Highlander inspected and pulled data from its Event Data Recorder (EDR), or Black Box as we've come to call it. Not only was this the first time we've seen a claim of unintended acceleration like this caught on video, but now, also a first, we have actual data showing what the vehicle itself recorded during this frightening ordeal.
Brian Lyons, Toyota Communications Manager for Safety and Quality, first gave us some information about the Highlander in question, including the fact that it was a 2012 model. The 2012 Highlander came from the factory with a brake override system, meaning it was not part of the company's initiative in 2010 to add the system to all 2011 models. Also, after looking at the data from the EDR, he said - as many of you pointed out in the comments for the previous post - that the "brake pedal was never touched." In the video, you can see that the crossover's brake lights never come on, and the EDR's data backs this up.

Chip maker Nvidia adds Volvo to list of self-driving partners

Chipmaker Nvidia Corp announced on Monday it was partnering with Volvo Cars and Swedish auto supplier Autoliv to develop self-driving car technology for vehicles due to hit the market by 2021. Volvo is owned by China's Geely Automobile Holdings. Silicon Valley-based Nvidia also announced a non-exclusive partnership with German automotive suppliers ZF and Hella for artificial intelligence technology for autonomous driving. Nvidia came to prominence in the gaming industry for designing graphics processing chips, but in recent years has been a key player in the automotive sector for providing the so-called "brain" of the autonomous vehicle. The company, whose many partners already include Tesla, Toyota, Ford, Audi, BMW, and tier one supplier Robert Bosch, announced its latest deals at an automotive electronics show in Ludwigsburg, Germany. Nvidia's Drive PX artificial intelligence platform is used by Tesla in its Models S and X and upcoming Model 3 electric vehicles. Volkswagen AG's Audi is also using the system to reach full autonomous driving by 2020. In a call with reporters, Nvidia's senior automotive director Danny Shapiro said carmakers and their main suppliers are now moving away from the research and development phase of autonomous vehicles and into concrete production plans. The system developed jointly by ZF and Hella, and using Nvidia's Drive PX platform, will combine front cameras with radar and software to create technology meeting the Euro NCAP safety certification for so-called "Level 3" driving, in which some, but not all, driving is performed by the car. Volvo is already using the Drive PX for the self-driving cars in its "Drive Me" autonomous pilot program. Volvo's production vehicles built on Nvidia's platform, as announced on Monday, are planned for sale by 2021.Reporting By Alexandria SageRelated Video: Auto News Green Tesla Toyota Volvo Technology Emerging Technologies Autonomous Vehicles nvidia autoliv