2014 Toyota Tundra on 2040-cars

Auto blog

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 buys Daihatsu for small-car development

Toyota is getting serious about small cars, but it's not going at it alone. Instead it's turning to its subsidiary Daihatsu, with which it will now share more resources and expertise. And in the process, it's acquiring the remaining stake in the smaller automaker. Daihatsu is a Japanese carmaker founded in its present form in 1951, but with roots that trace back as far as 1907. Toyota acquired a controlling interest of 51 percent in Daihatsu in 1988, bringing the company under its umbrella. But now it is raising its stake to 100 percent by a reciprocal share-swap agreement that will see Daihatsu's other shareholders take 0.27 shares in the larger company for each share in the smaller. As part of the new arrangement, the Daihatsu division will take the lead in developing new small cars, both for itself and for its parent company. Toyota in turn will also share key technologies with Daihatsu, and both will share each other's networks in emerging markets. The bottom line is that we can expect to see more small Toyotas and Scions developed and built by Daihatsu in the near future. The Daihatsu name may not be as familiar to Americans as some of Toyota's other brands. It briefly sold models like the Charade and Rocky in the United States under its own name in the late 1980s and early 90s. However US customers may be more familiar with those it built for the Scion brand, such as the Scion xB that was based on the Daihatsu Materia. While the realistic part of our brains force us to admit it's unlikely, the dreamer within us will hold out hope that the new arrangement could see a Scion version of the nimble little Daihatsu Kopen roadster make its way to our shores in the coming years. Toyota and Daihatsu to Strengthen Small Car Operations through Unified Global Strategy Toyota Motor Corporation (Toyota) and its subsidiary Daihatsu Motor Co., Ltd. (Daihatsu) have reached an agreement whereby Daihatsu will become a wholly-owned subsidiary of Toyota by way of a share exchange (expected to be completed in August 2016). The purpose of the agreement is to develop of ever-better cars by adopting a unified strategy for the small car segment, under which both companies will be free to focus on their core competencies. Ultimately, this will help Daihatsu and Toyota to attain their joint goal of achieving sustainable growth. Additionally, the aim of the share exchange is to enhance the value of both brands.

Autoblog Minute: VW finds CO2 'irregularities', Takata dropped by automakers, SEMA recap

Volkswagen's diesel emissions scandal gets a new wrinkle, US regulators hit Takata Corporation with a substantial fine, and we head to Las Vegas for a look at tuner paradise at the 2015 SEMA show. Autoblog senior editor Greg Migliore reports on this edition of Autoblog Minute Weekly Recap. Show full video transcript text [00:00:00] Volkswagen's diesel emissions scandal gets a new wrinkle. US regulators issue a significant fine to Takata Corporation. And we take a peek inside tuner paradise at the 2015 SEMA show. I'm senior editor Greg Migliore and this is your Autoblog Minute Weekly Recap. The VW diesel emissions scandal, first brought to light in September, gets a new wrinkle, as an internal investigation by the German automaker revealed [00:00:30] irregularities in CO2 emissions that could affect approximately 800,000 vehicles. VW estimates the issue could pose a 2-billion euro economic risk. VW claims that most of the vehicles affected have diesel engines, but industry analysts say a 1.4-liter gas engine is also affected. VW says that fuel consumption figures were set too low during the CO2 certification process. During all of this, sales of some diesel-powered Volkswagen, Audi, and Porsche models [00:01:00] have been halted. Takata Corporation is back in the news in connection with its deadly airbag scandal. Federal regulators fined Takata $70 million. If the parts supplier does not comply, the fine could balloon to $200 million. Takata was also dropped this week by its biggest customer, Honda. And now, Toyota and Mazda will be following Honda's lead in dropping Takata. We're also hearing that Mitsubishi and Subaru are considering a switch in air-bag inflator suppliers. SEMA 2015 [00:01:30] came and went. We saw offerings from Mopar, like the AWD Challenger concept. Honda unveiled a Ridgeline that it will race at the Baja 1000, which gives us a hint at what future production model could look like. The celebrity presence was also felt in Vegas as it always is. Kid Rock brought a Duramax Diesel Chevy Silverado, and Acura restored and presented Ludacris with his now famous 1993 Acura Legend. Those are the highlights from the week that was. Be sure to come back on Saturday for my full recap, [00:02:00] where I'll have some added insight into Hyundai's foray into the luxury sector. For Autoblog, I'm Greg Migliore. Autoblog Minute is a short-form video news series reporting on all things automotive.