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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.

Ford Mustang GTD, Acura ZDX and Pebble Beach recap | Autoblog Podcast #795

In this episode of the Autoblog Podcast, Editor-in-Chief Greg Migliore is joined by News Editor Joel Stocksdale. In the news, there were a lot of recent unveilings, including the Ford Mustang GTD, Pininfarina B95, Lamborghini Lanzador, Acura ZDX and Fisker Alaska. We recap Pebble Beach and the Woodward Dream Cruise. Joel is fresh off a track drive of the Audi R8 (at Laguna Seca!), and we give ann update on our long-term Toyota Sienna minivan. Finally, we take to Reddit to help pick a new car with a V8 in this week's "Spend My Money" segment. Send us your questions for the Mailbag and Spend My Money at: Podcast@Autoblog.com. Autoblog Podcast #795 Get The Podcast Apple Podcasts – Subscribe to the Autoblog Podcast in iTunes Spotify – Subscribe to the Autoblog Podcast on Spotify RSS – Add the Autoblog Podcast feed to your RSS aggregator MP3 – Download the MP3 directly Rundown 2025 Ford Mustang GTD revealed as a race car for the road — it costs $300,000 Pininfarina B95 revealed, 0-60 in 2 seconds, and at $4.8 million is the priciest EV ever Lamborghini Lanzador concept is a megawatt wedge previewing the first Lamborghini EV 2024 Acura ZDX revealed with up to 500 horsepower Fisker Alaska electric pickup specs, price and production plans revealed Cars we're driving 2023 Audi R8 Quattro Long-term 2023 Toyota Sienna Spend My Money Feedback Email – Podcast@Autoblog.com Review the show on Apple Podcasts Autoblog is now live on your smart speakers and voice assistants with the audio Autoblog Daily Digest. Say “Hey Google, play the news from Autoblog” or "Alexa, open Autoblog" to get your favorite car website in audio form every day. A narrator will take you through the biggest stories or break down one of our comprehensive test drives. Related video: Podcasts Acura Audi Fisker Ford Lamborghini Toyota Concept Cars Electric Future Vehicles Luxury Performance

Consumer Reports calls on Toyota to recall older Camry Hybrid models

Consumer Reports is calling on Toyota to issue an official recall of 178,000 Camry Hybrid sedans from model years 2007 to 2011, claiming that a pair of issues affecting the brakes are so dire they demand a more official action than what the company has undertaken so far.
The first issue, as CR tells it, relates to a clog in the brake-fluid reservoir filter, which if left untreated could lead to a number of dashboard warning lights. The "front brake assist could be temporarily lost," too, according to Toyota's own notice to dealers and owners of affected models. The company has issued a "service campaign" that will fit a new brake-fluid reservoir free of charge to any affected model brought to a dealer by June 30, 2017.
The other issue plaguing the fuel-sipping Camrys is being treated via a warranty extension, and focuses on the ABS brake actuator, a particularly expensive (both in terms of parts, at $1,000, and labor, around $3,000) item that is necessary for the anti-lock braking to function. There's also a related issue with the brake pedal's "stroke sensor," which like the actuator can lead to a very difficult-to-depress brake pedal. The warranty extension increases the coverage of the actuator to 10 years or 150,000 miles (whichever comes first).