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Mazda, Suzuki, Yamaha — more vehicle data fabrication found in Japan

TOKYO — Mazda, Suzuki and Yamaha improperly tested vehicles for fuel economy and emissions, the Japanese government said on Thursday, revealing fresh cases of compliance failures by manufacturers. The results came to light after the Japanese government had ordered the automakers to check their operations after revelations of improper testing at Subaru and Nissan last year. The conduct of automakers globally has come under intense scrutiny after Germany's Volkswagen AG admitted in 2015 to installing secret software in hundreds of thousands of U.S. diesel cars to cheat exhaust emissions tests, and that as many as 11 million vehicles could have similar software installed worldwide. In the Japanese cases, the carmakers have not broken any laws or prompted massive recalls. But a growing list of improprieties has tarnished the image of the country's manufacturing industry for high-quality products and efficiency. Suzuki, Mazda and Yamaha cleared vehicles for emissions or fuel efficiency even in cases where they were tested under invalid conditions, the ministry said in a statement. The errors related to slight deviations in the speed of the vehicles during testing that should have invalidated the test results. The automakers examined tests they had conducted over different periods of time, and in Suzuki's case they stretched back to 2012. None of the automakers found significant problems with actual emissions and fuel economy performance of the vehicles, which were destined for sale in Japan, and do not plan any recalls. Suzuki, Japan's fourth-largest automaker, said that of 12,819 sample vehicles tested for fuel economy and emissions since June 2012, around 50 percent of them had been inspected improperly. "I deeply apologize and will lead efforts to prevent recurrence," Suzuki Chief Executive Toshihiro Suzuki told a news conference. Mazda said there were irregularities in 4 percent of similar inspections on its cars, or just over 70 vehicles. In Yamaha's case, irregularities were found in 2 percent of inspections, or just a handful of vehicles. Both Mazda and Yamaha apologized. Suzuki and Yamaha shares fell 6 and 5 percent, respectively, and Mazda shares were down 1 percent, underperforming a steady benchmark Nikkei average. In July this year, Nissan admitted it had improperly measured exhaust emissions and fuel economy for 19 vehicle models sold in Japan.

Mazda reportedly to be fully electric and hybrid by 2030s

TOKYO - Mazda plans to make all of its vehicles electric-based, including gasoline hybrids, by the early 2030s, Japanese media reported on Friday, as more automakers shift strategies to meet tightening global emission regulations. The Japanese automaker plans to use electric motors in all of its models by that time, Kyodo News reported, without citing sources. A Mazda spokeswoman declined to comment on the report. At the moment, Mazda's lineup does not include any all-battery electric vehicles. It does offer a hybrid version of the Mazda3, but it's only available in Japan. The company has also experimented with a range-extended electric Mazda2, which used a tiny rotary engine to produce electricity. The move is consistent with the company's Sustainable Zoom-Zoom 2030 plan, which lays out the launch of various green powertrains. Among them are electrified models coming out in 2019. That same year will include the launch of the company's new SkyActiv-X engine, a compression ignition gasoline engine, which promises fuel efficiency improvement of 20- to 30 percent over comparable spark-ignition gas engines. This engine could hypothetically be combined with hybrid technology for even greater gains in efficiency, or even performance if the company so chooses. Mazda's recent partnership with Toyota also means Mazda could be able to quickly develop hybrids and electrics using Toyota's existing technology. This news that Mazda will begin primarily focusing on electric powertrains does seem contrary to Mazda CEO Masamichi Kogai's statement that its gasoline, diesel and electric vehicle technologies would "co-exist" in the future. Mazda on Thursday also launched a new CX-8 three-row crossover for the Japanese market, which is currently only available with a diesel engine. The company also plans to finally introduce a diesel engine to the United States in the CX-5 crossover. Assuming that Mazda's move to fully electrified vehicles is true, it will join a couple of other automakers planning to do the same. Volvo Car Group in July said that all of its new models from 2019 would feature some amount of electrification, and Jaguar-Land Rover will follow suit starting in 2020. Reporting by Naomi Tajitsu. Editing by Sherry Jacob-Phillips. Additional words from Joel Stocksdale.Related Video: Image Credit: Toru Hanai / Reuters Green Mazda Electric Future Vehicles Hybrid mazda hybrid mazda electric car

Mazda files patents for a sequential twin-turbo setup

Mazda has a history of interesting engine technologies, from yesterday's rotary engine to tomorrow's compression ignition engine, and new patents show it still may have some internal combustion tricks up its sleeve. The one on display in these patents isn't especially new in concept, though. A sequential twin-turbocharger setup is something Mazda itself used on the third-generation RX-7. But it's something we haven't seen much of lately. It looks like it could have some possible advantages over older sequential systems, and it has some potential advantages for enthusiasts. First a quick and dirty primer for what makes a sequential twin-turbo system distinct from other twin-turbo systems. In many twin-turbo engines, there are simply two turbos that work together as one bigger turbo. They're the same size, and they spool up at the same time. With a sequential setup, at low rpm, a smaller turbocharger is spooled up first at low-rpm for quicker throttle response, and as the rpm and exhaust pressure increases, a valve opens up that allows a larger turbocharger to also spool up and provide high-rpm boost. That's basically how the Mazda design shown above functions. A big flap blocks off the larger turbocharger exhaust inlet, channeling all the exhaust to the smaller turbo. When more exhaust is available at high rpm, it looks like that flap opens up to spool up the big turbo, too. What's interesting here is that the way the turbochargers are packaged takes up less space than past systems. It looks like both turbos are contained in one unit that shares the same exhaust outlet, meaning the exhaust manifold could be kept simple and compact. In fact, the piping for compressed intake air could also be shared, reducing the amount of piping, which would further decrease the amount of materials and possible failure points. There are a number advantages of making this system smaller. The potential applications of the system are much greater, since it could fit in smaller cars with smaller engine bays. Making the system smaller also means that there won't be as much weight, which is important from both fuel economy and performance standpoints. Finally, the smaller setup likely uses fewer materials, which could make the system cheaper and thus easier to offer on a wider range of vehicles, or at least more profitable for Mazda.