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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.

Economy-car buyers increasingly get the best deal on technology

One of the great things about technology is – with the exception of Apple products – consumers get more for their money every year. For example, the first 1GB USB drive I bought in 2005 cost me $30. Today you can get 10 for that price, delivered to your door thanks to Amazon. The same goes for car tech. Features such as navigation and Bluetooth started out on high-end vehicles before trickling down to entry-level cars. Same with driver assist features ranging from rearview cameras to forward collision warning with automatic emergency braking — so now it's not only rich people who are protected in car crashes. I've found that this democratization of tech has reached a point where amenities on low-cost cars can be as good — and sometimes even better — than those on vehicles costing tens of thousands of dollars more. While attending a media event for the launch of the all-new 2019 Toyota Corolla Hatchback, I was impressed by the car's cool styling and go-kart performance. Equally noteworthy is the amount of standard tech on the low-cost hot hatch. (Pricing will be announced later this month, but expect it to come in a bit higher that the current Corolla iM's roughly $19,000 base.) Even the base SE CVT trim of the 2019 Corolla Hatchback comes with an 8-inch touchscreen and Toyota's Entune 3.0 infotainment system. Among other features, Entune 3.0 provides Wi-Fi capability, Amazon Alexa connectivity, the Entune App Suite for integration of smartphone apps such as Pandora and Yelp and, for the first time in a Toyota, Apple CarPlay (but no Android Auto). The 2019 Corolla Hatchback is also the first North American vehicle to get the second-generation Toyota Safety Sense (TSS) suite of driver assists that's also standard on the base model. TSS 2.0 includes Toyota's Pre-Collision System (forward collision warning with automatic emergency braking) with new daytime and low-light pedestrian detection and daytime cyclist detection features, lane keeping and lane departure alert with steering assist, auto high beams, adaptive cruise control, and road sign detection. While the 2019 Corolla Hatchback sets a new benchmark in standard tech on a budget-mobile, competing cars aren't far behind. The 2018 Honda Fit LX, for example, includes forward collision warning with automatic emergency braking, lane departure warning and assist and adaptive cruise, while the automaker's Lane Departure Mitigation and Lane Watch camera system is added the two top trims.

Toyota recalls 250 vehicles in two separate campaigns

Toyota is keeping on top of things by issuing two, small recalls on 2015 model year vehicles. The first covers 230 examples of the 2015 Yaris. In the affected models, the bolts holding the rear axle bearing might not be tight enough. If one of these fasteners falls off, it could possibly damage the rear brakes, including the potential of a wheel locking up. The second, even smaller campaign covers just 20 units of the 2015 Tacoma TRD Pro pickups. In the examples delivered to Puerto Rico, they didn't have the correct placard to advise owners of the correct tire size and pressure on the B-pillar. Neither problem has resulted in any crashes, injuries or fatalities. As usual, affected owners will be notified by mail, and Toyota dealers will repair the issues free of charge to customers. Toyota spokesperson Cindy Knight tells Autoblog that those letters will go out in mid-March. TOYOTA RECALLS CERTAIN MODEL YEAR 2015 YARIS AND TACOMA VEHICLES TORRANCE, Calif., February 17, 2015 – Toyota Motor Sales, U.S.A., Inc., today announced it will conduct a safety recall of approximately 230 Model Year 2015 Yaris hatchbacks and approximately 20 Model Year 2015 Tacoma TRD Pro model pickup trucks. In the involved Yaris vehicles, the rear axle bearing bolts may not have been tightened sufficiently during vehicle assembly. If a bolt is loose and falls off during vehicle operation, the bolt could damage rear brake components, resulting in reduced brake performance or potential wheel lock up, which could increase the risk of a crash. The Tacoma TRD Pro model pickup trucks were distributed to dealers in Puerto Rico without the correct B-pillar tire placard indicating the tire size and recommended cold tire inflation pressure for the front and rear tires. An improperly inflated tire can increase the risk of a crash. Toyota is not aware of any crashes, injuries, or fatalities caused by either condition. Owners of the involved vehicles will receive a notification by first class mail. Toyota dealers will repair the vehicles at no cost to the owner. Detailed information is available at www.toyota.com/recall and by calling Toyota Customer Service at 1-800-331-4331. ### Featured Gallery 2015 Toyota Yaris View 12 Photos Related Gallery 2015 Toyota TRD Pro Series Tundra, Tacoma and 4Runner News Source: Toyota Recalls Toyota Safety Truck Hatchback