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Toyota finds 10% MPG improvement in hybrid PCU

Keeping up its from-all-angles approach to efficiency, Toyota has found yet another way to eke out up to ten percent more precious MPGs in its hybrid vehicles, this time electronically. The automaker has announced the development of new silicon carbide (SiC) power semiconductors for use in power control units, which it will begin testing on Japanese roads within the next year. The PCU using the silicon carbide compound offers less electrical resistance, which improves efficiency when passing current between the battery and electric motor. It also loses less power after shutting off, and can operate at a higher frequency. The net power loss of the new PCU is just one-tenth of the current silicone-only version (the latter accounting for 20 percent of total electrical power loss in today's hybrids). The result, so far, is a claimed five-percent improvement in fuel economy in test vehicles, with the potential of ten percent by the time the new SiC power semiconductor comes to market. Additionally, the carbide wafers allow for smaller a power module, coil and capacitor, thus allowing the entire PCU to be 80 percent smaller (see the side-by-side comparison in the accompanying photo, which you can click to enlarge). We've got a while to wait before we start to see the carbide technology to start making a real-world impact. Toyota aims to begin using the SiC units in 2020. By then, with improvements in the company's other key efficiency factors - engine technology and aerodynamics - cars like the Prius will likely see significant gains in fuel economy. Read more in the press release below. Toyota Develops 'Diamond-like' Computer Chips to Boost Hybrid Mileage May 20, 2014 Toyota City, Japan – Toyota is using one of the hardest materials in nature after diamonds to develop a semiconductor chip it hopes will improve the fuel efficiency of its hybrids, such as the Prius, by as much at 10 percent. The company and its partners announced today that they have developed a silicon carbide (SiC) power semiconductor for use in automotive power control units. Toyota plans to begin test-driving vehicles with the technology on public roads in Japan within a year. The chips, made from carbide - one of the hardest materials in nature, theoretically have superior characteristics such as one-tenth the electrical power loss and 10 times the drive frequency. Toyota said the chips would also allow it to reduce the size of current automotive power control units by 80 percent.

Toyota says president, chairman of scandal-hit Daihatsu unit to step down

TOKYO — Toyota Motor Corp said on Tuesday both the president and chairman of Daihatsu Motor will step down almost a year after the small-car unit said it had rigged collision safety-tests. The departures are among the most drastic changes Daihatsu has made so far, as Toyota seeks to return the brand to its roots as one of Japan's most iconic compact car makers. Toyota faces a potential hit to its reputation from the safety certification lapses at Daihatsu, as well as separate governance issues at truck maker Hino Motors and affiliate Toyota Industries. The scandals at the three companies triggered a rare apology of Toyota Chairman Akio Toyoda last month. In a statement, the world's top-selling automaker said its chief executive officer for the Latin America and Caribbean region, Masahiro Inoue, will replace Soichiro Okudaira as Daihatsu's president effective March 1. Daihatsu's chairman, Sunao Matsubayashi, will also step down and will not be replaced, Toyota added. The outgoing Okudaira had worked at Toyota for nearly four decades before becoming president of Daihatsu in 2017, a year after it became a wholly owned Toyota subsidiary. Toyota Chief Executive Koji Sato told reporters, however, that the organizational change at Daihatsu was not carried out as a punishment for the outgoing executives. In volume terms, Daihatsu accounted for 7% of Toyota's total group sales of 11.2 million vehicles in 2023, including those of the luxury Lexus brand and Hino Motors. Given the misconduct over the safety test certification applications, Daihatsu also will be removed from a commercial vehicle partnership known as the Commercial Japan Partnership Technologies (CJPT), the automaker said in a separate statement. The partnership was established in April 2021 by Toyota, Hino and Isuzu Motors to facilitate technology development for commercial vehicles. Suzuki Motor and Daihatsu joined in July the same year. Daihatsu's 10% equity stake in the partnership will be transferred to Toyota, the statement said. (Reporting by Daniel Leussink and Satoshi Sugiyama; Editing by Kim Coghill & Shri Navaratnam and Miral Fahmy) Government/Legal Hirings/Firings/Layoffs Plants/Manufacturing Toyota Daihatsu

Ford only automaker to make 2012 Buzz Rankings, Toyota most improved

Ford landed itself a spot among the top 10 brands in the 2012 Buzz Rankings. The annual index scores 1,100 brands in 41 categories to determine which nameplates had the most positive buzz throughout the year.
For the third year in a row, Subway took the top honors overall with a score of 40.3, and Ford was the only automaker to break into the top 25 by earning a sixth-place finish overall. The manufacturer earned a score of 32.1 points, which was enough to push it up one spot from the 2011 Buzz Rankings. Honda managed 21.2 points overall, which is still well behind 25th-place Kohl's at 26.5 points. Toyota, Volkswagen and BMW all round out the top five automakers.
The 2012 Buzz Rankings also keep track of which brands improved the most over the past year, and this year, Toyota was the manufacturer with the largest leap forward. The Japanese automaker jumped from just 14 points in 2011 to 20.5 in 2012. Chrysler, Kia, Dodge and Volkswagen all saw sizable steps forward as well. Be sure to head over to the Brand Index site for more information.