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Japan carmakers vouch for safety of some Kobe Steel parts

TOKYO — Four Japanese automakers on Thursday said they found no safety issues with aluminum parts supplied by Kobe Steel Ltd, allaying some concerns that falsified quality data on products from the steelmaker had compromised their vehicles. Kobe Steel shares surged after the car makers' statements, but the steelmaker still has to contend with a U.S. Justice Department probe, while checks continue at hundreds of companies involved in complex supply chains spanning the globe. Japan's third-biggest steelmaker admitted earlier this month it falsified specifications on the strength and durability of aluminum, copper and steel products, along with materials for optical disks. The falsifications stretch back for more than 10 years, a senior executive told Reuters this week. Since then, global automakers, aircraft companies and other manufacturers have scrambled to identify potential hazards in their products. Toyota, Honda, Nissan and Mazda said that hoods and other exterior parts used in their cars which were made from aluminum directly supplied by Kobe Steel were safe. Kobe Steel shares ended the day nearly 7 percent higher but are still down by more than a third since it announced the data falsification. Automakers are still making checks on other parts, including those that they received through their parts suppliers. "We confirmed that the materials satisfy applicable statutory standards, and our own internal standard, for key safety and durability requirements for vehicles," Toyota said in a statement. Toyota, one of the world's largest automakers, identified aluminum plates supplied by Kobe Steel for the hoods and rear hatches of Toyota and Lexus brand vehicles. Though outside the automaker's specifications, they were still safe to use. While Subaru and other carmakers said they were still investigating the issue, the announcements by Toyota, Honda, Nissan and Mazda suggest that Kobe Steel's cheating scandal may have a limited impact on product safety."SERIOUS SITUATION" Nonetheless, the company's fate hangs in the balance while checks are being carried out. It must report to Japan's industry ministry by around the end of next week on any safety concerns and provide a more extensive account of the problems a fortnight later. Industry leaders have reached a consensus that Kobe Steel is in a "serious situation," a senior Japanese manufacturing executive told Reuters.

How many Toyotas are potentially affected by seat fabric problem?

When we reported yesterday on Toyota's stop-sale order of certain 2013 and 2014 models due to an issue with the fabrics on models with heated seats not conforming to flammability regulations, one of our many questions was how many vehicles were affected? More importantly, how many of those cars have already found homes?
Kelley Blue Book has the troubling statistics. Every 2013 and 2014 Avalon features heated seats. 6.2-percent of 2013 and 4.5-percent of 2014 Camry sedans, meanwhile, were sold with heated seats. That doesn't seem as bad as 100-percent of the larger Avalon, until you consider the Camry's huge volume - the 5.6-percent average still accounts for a lot of cars. Sienna minivans are heavily affected as well, with a total of 37-percent of 2013s and 46-percent of 2014s fitted with butt warmers. The stop-sale only affects 7-percent of 2014 Corolla models, but like the Camry, that number is rather misleading due to the sheer volume of cars Toyota moves. You can see the entire breakdown of percentages by clicking on the inset image.
According to Karl Brauer, a senior analyst for KBB, this problem comes at the worst possible time. "Given that much of the US is currently in the grips of a record cold snap, there's sure to be high demand for models with seat heaters," Brauer notes. The stop-sale order is a good first step, but it doesn't do anything to inform consumers who currently own the affected models and may, in these frosty temperatures, want to use their seat heaters. "Should owners of those vehicles stop using the seat heaters?" Brauer asked.

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.