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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 Prius sets a different kind of Nurburgring lap record [w/video]

Scroll down the leaderboards of Nürburgring lap times and you'll see mostly racing cars, supercars and sports cars. Delve deep enough and you'll eventually get to hatchbacks and sedans, albeit the most performance-focused of their kind. But a hybrid? Sure, the Porsche 918 Spyder posted the top time for a street-legal series production car, and it's technically a hybrid, but we're talking about another kind of hybrid here. We're talking about a Toyota Prius.
That's right: the Prius just set a lap record around the Nordschleife. But it wasn't for the lap time. In fact, miles per hour barely factored in (except for staying above the minimum 37-mph average speed mandated on the vaunted racing circuit). No, this was about miles per gallon.
Toyota took one of its Prius Plug-In hybrids to the Nürburgring, topped up the battery, put on a set of low-rolling-resistance tires and put automotive journalist Joe Clifford behind the wheel with a mandate to use as little fuel as possible. After one second shy of 21 minutes, the Prius completed its lap having used just five tablespoons of fuel.

Honda and Chrysler EV news, and talking with GM's charging ecosystem boss | Autoblog Podcast #781

In this episode of the Autoblog Podcast, Editor-in-Chief Greg Migliore is joined by Senior Editor, Green, John Beltz Snyder. They're excited about the news of the possibility of an electric sports car being revealed for Honda's 75th anniversary, as well as the completely revamped — redesigned and renamed — Chrysler Airflow. They've been driving the Bentley Bentayga EWB, Range Rover, Toyota GR Corolla and the refreshed Buick Encore GX. We listen to a interview Greg conducted with GM's EV charging boss, Hoss Hassani. Finally, a reader is looking to help his in-laws choose an SUV, possibly a hybrid or EV, to replace a BMX X3. Send us your questions for the Mailbag and Spend My Money at: Podcast@Autoblog.com. Autoblog Podcast # 781 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 News Honda electric sports car could be unveiled this year Chrysler Airflow being redesigned and renamed for production Cars we're driving 2023 Bentley Bentayga EWB Azure First Edition 2023 Land Rover Range Rover SE LWB 2023 Toyota GR Corolla Morizo 2024 Buick Encore GX Avenir Interview with Hoss Hassani, General Motors Vice President and EV Charging Ecosystem 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: Green Podcasts Bentley Buick Chrysler GM Honda Land Rover Toyota Green Automakers Crossover Hatchback SUV Electric Future Vehicles Luxury Performance Sedan