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Join Autoblog editors for a full video tour of the 2019 Detroit Auto Show

The 2019 North American International Auto Show might have been a little more quiet than past years, but there were still some pretty major reveals, including the Toyota Supra, new Ford Explorer, Shelby GT500, Subaru WRX STI S209 and Kia Telluride. We also saw some lovely concepts like the Nissan IMs and Lexus LC Convertible. Senior Editor Alex Kierstein, Consumer Editor Jeremy Korzeniewski and Senior Green Editor John Beltz Snyder join me, Associate Editor Reese Counts — with Social Media Manager Michael Dylan Ferrara behind the camera — on a long walk through the show. We discuss cars, poke around the stands, dress a bloody wound and answer your questions in the Facebook comments. For more Detroit coverage, you can check out Autoblog's picks for the best in show, listen to our podcast or look at the best images from all the reveals. Finally, don't forget to watch Editor-in-Chief Greg Migliore hand over our 2019 Technology of the Year award. Related Video: Green Detroit Auto Show Acura Cadillac Chevrolet Ford GM Hyundai Infiniti Kia Lexus Nissan RAM Subaru Toyota Volkswagen Truck Convertible Coupe Crossover Hatchback Minivan/Van SUV Videos Sedan facebook 2019 detroit auto show live

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.

Recharge Wrap-up: Honda Grace hybrid goes on sale in Japan, Daimler spends 100M euros on batteries

The Mercedes-Benz S-500 Plug-In Hybrid has earned an Environmental Certificate from the TUV Sud technical inspection authority. The award is based on a lifecycle assessment of the vehicle. This includes the ability to reduce CO2 emissions by 43 percent through charging, and by 56 percent if charged using hydroelectricity. Read more in the press release below. Daimler is expanding its production capacity for lithium-ion batteries. The company is investing around 100 million euros in its subsidiary Deutsche ACCUmotive, who will provide batteries for the electric Smart Fortwo and Forfour, as well as various Mercedes-Benz models. By the end of the construction, Deutsche ACCUmotive will have quadrupled production and logistics space since 2011. Read more in the press release below. Honda has begun sales of its Grace hybrid sedan in Japan. The Grace is based on the Honda Fit and uses the automaker's Sport Hybrid i-DCD system. It comes in front- and four-wheel-drive versions and uses a seven-speed DCT with built-in motor. The Honda Grace starts at the equivalent of about $16,500. Read more in the press release below. Honda has begun operation of its wind farm in Brazil. The farm consists of nine wind turbines, expected to produce about 95,000 MWh of electricity per year, which is on par with Honda's consumption for automobile production in the country. Honda is aiming to cut its CO2 production by 30 percent by 2020 compared to 2000 levels. Read more in the press release below. Toyota has won the 2014 World Endurance Championship's Driver and Manufacturer categories with hybrid technology. Toyota celebrated the win after the final race in Sao Paolo, Brazil. Toyota uses the same hybrid technology in its racing cars as it does in its production vehicles. Read more in the press release below. Controlled Power Technologies and other groups are calling for an international 48-volt electrical standard for vehicles. The groups called for the standard at the International Conference Automotive 48 V Power Supply Systems, saying that the 48V standard for mild hybrids would help make the systems more affordable. This will make it easier for automakers to meet the more stringent CO2 standards anticipated in coming years along with the introduction of the World Light vehicles Test Procedures. Read more at Green Car Congress. The world's first certified three-litre luxury saloon: S 500 PLUG-IN HYBRID receives Environmental Certificate Stuttgart.