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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.

Honda Civic overtakes Toyota Corolla as America's best-selling compact

The battle to claim October's best-selling compact sedan title has been won by the Honda Civic. The Japanese four-door sold 27,328 units, leaving the Toyota Corolla - September's title holder - in its wake with 23,637 units sold. In terms of year-to-date sales, the Civic sits at 280,899 units, with the Corolla trailing at 257,184 vehicles.
Sitting in third place, separated by a significant gap from the leaders, is the Chevrolet Cruze with 16,087 units sold. The Ford Focus earned fourth, with 15,108 units moved out of showrooms. (It is interesting to note that while the Civic and Corolla have both enjoyed double-digit sales increases year-over-year, the Cruze and Focus have seen significant decreases during the same period.)
Sales of the Hyundai Elantra hit 14,876 units, putting it in fifth place, with the Volkswagen Jetta earning sixth place with 11,710 units. Rounding out the ten top sellers were the Nissan Sentra (8,399 units), Mazda3 (7,647 units), Dodge Dart (5,617 units) and Subaru Impreza/WRX (4,923 units). The Kia Forte (4,706 units) and Volkswagen Golf (2,249 units), eleventh and twelfth respectively, have fallen behind.

Japanese automakers welcome North American trade deal, fear what's next

TOKYO — Toyota, Nissan and Mazda welcomed on Tuesday the revised North America trade deal that left Japanese automakers unscathed, but they may face a bumpy ride when Washington and Tokyo hold new talks on over $40 billion of annual U.S. auto imports from Japan. The United States and Canada reached an agreement on Sunday to update the 1994 North American Free Trade Agreement after Washington had forged a separate trade deal with Mexico in August. The updated deal effectively maintains the auto industry's current footprint in North America, and spares Canada and Mexico from the prospect of U.S. national security tariffs on their vehicles. Mazda, which ships cars to the United States from Mexico and Japan, called the deal a "big step forward". Nissan, which makes the cars it sells in the United States locally as well as in Mexico, Japan and other countries, said it was "encouraged" by the agreement. Toyota, Japan's biggest automaker, said it was "pleased" that a basic deal was reached. Other automakers were not immediately available for comment. While the deal has removed the risk that the disintegration of the pact would have posed to automakers, bigger risks loom large for Japanese firms as a chunk of the roughly 7 million cars they sold in the U.S. last year were shipped from Japan, and a trade deal between Washington and Tokyo has yet to be agreed. The United States and Japan last week agreed to begin fresh trade talks, with U.S. President Donald Trump seeking to address Japan's $69 billion trade surplus, of which nearly two-thirds comes from auto exports. Washington is also investigating the possibility of slapping 25 percent tariffs on auto imports on national security grounds, although it has agreed with Japan to put any new tariffs on hold during the talks. Analysts say the United States may take a tougher stance on auto imports from Japan than from its neighbors. "If Japan requests an exemption from the 25 percent tariffs under consideration, Washington could propose a more strict cap on imports than it agreed to with Mexico and Canada," said Koji Endo, senior analyst at SBI Securities. "That would be a risk." This could be a big blow to Japan, as the United States is a key source of revenue for Japanese automakers including Toyota, Nissan and Honda. The U.S. market accounts for a quarter or more of their annual global vehicle sales, and of their total U.S.