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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.

Japan could consolidate to three automakers by 2020

Sergio Marchionne might see his dream of big mergers in the auto industry become a reality, and an analyst thinks Japan is a likely place for consolidation to happen. Takaki Nakanishi from Jefferies Group LLC tells Bloomberg the country's car market could combine to just three or fewer major players by 2020, from seven today. "To have one or two carmakers in a country is not only natural, but also helpful to their competitiveness," Nakanishi told Bloomberg. "Japan has just too many and the resources have been too spread out. It's a natural trend to consolidate and reduce some of the wasted resources." Nakanishi's argument echoes Marchionne's reasons to push for a merger between FCA and General Motors. Automakers spend billions on research and development, but their competitors also invest money to create the same solutions. Consolidating could conceivably put that R&D money into new avenues. "In today's global marketplace, it is increasingly difficult for automakers to compete in lower volume segments like sports cars, hydrogen fuel cells, or electrified vehicles on their own," Ed Kim, vice president of Industry Analysis at AutoPacific, told Autoblog. Even without mergers, these are the areas where Japanese automakers already have partners for development. Kim cited examples like Toyota and Subaru's work on the BRZ and FR-S and its collaboration with BMW on a forthcoming sports car. Honda and GM have also reportedly deepened their cooperation on green car tech. After Toyota's recent buyout of previous partner Daihatsu, Nakanishi agrees with rumors that the automotive giant could next pursue Suzuki. He sees them like a courting couple. "For Suzuki, it's like they're just starting to exchange diaries and have yet to hold hands. When Toyota's starts to hold 5 percent of Suzuki's shares, this will be like finally touching fingertips," Nakanishi told Bloomberg. "I absolutely do believe that we are not finished seeing consolidation in Japan," Kim told Autoblog. Rising development costs to meet tougher emissions regulations make it hard for minor players in the market to remain competitive. "The smaller automakers like Suzuki, Mazda, and Mitsubishi are challenged to make it on their own in the global marketplace. Consolidation for them may be inevitable." Related Video:

Toyota will bring Lexus-based Platform 3.0 autonomous vehicle to CES

The Toyota Research Institute says it will bring its next-generation Platform 3.0 automated driving vehicle to CES next week, an autonomous test car that is notable for incorporating the sensors and cameras into the body, rather than as ungainly attachments, and with the spinning LIDAR rooftop sensor replaced by a more sleek panel of sensors. Platform 3.0 is built on a Lexus LS600hL. Toyota Research Institute says it enlisted CALTY Design Research in Ann Arbor, Mich. and engineers at Toyota's nearby North America R&D center to conceal the equipment. As a result, Platform 3.0 gets a new rooftop weather and temperature proof panel, which it says was inspired by off-road motorcycle helmets, integrated into the available space in the sunroof compartment to minimize height. It's also embellished with chrome trim along the side, where it meets the roofline, and the rear swoops down to integrate with the LS's contour lines. The team also managed to consolidate computational electronics and wiring into a small box in the trunk. Toyota says the Platform 3.0 is one of the most perceptive autonomous test vehicles on the road today, with a design makes the test vehicle easy to build at scale. It gets a Luminar LIDAR system boasting a 200-meter, 360-degree range (the previous version only tracked the forward direction), enabled by four high-res LIDAR scanning heads that help it better see dark objects. Shorter-range LIDAR sensors feature low on all four sides of the vehicle, one on each front quarter panel and on the front and rear bumpers, to detect low-level and smaller objects, like children or road debris. Production begins this spring at the Toyota Motor North America R&D headquarters at low volumes to allow for flexibility, given the rapid rate of development of Toyota's autonomous test platforms. Some will be assembled using Toyota's Guardian dual-cockpit control layout to allow for transferring control between a human test driver and the automated system while keeping the driver as a backup, while the single-cockpit, fully autonomous Chauffeur mode will be shown at CES starting Jan. 9.Related Video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. Least favorite vehicles of 2017