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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.

Owner reflects on his $20.91 Toyota unintended acceleration settlement check

Where General Motors and Takata have grabbed many auto safety-related headlines this year with their problems with ignition switches and airbag inflators, a few years ago, a similar sort of scrutiny fell on Toyota for unintended acceleration. After multiple settlements with various parties totaling billions of dollars, the issues seem largely behind the Japanese automaker now. Owners are actually starting to receive their money, but it isn't exactly breaking the bank. Payouts are expected to be between $37 and $125 per person. Computer science student Jonathan Sourbeer received a check for just $20.91, and he considers what that money actually means in an op-ed in The Wall Street Journal. Sourbeer's biggest gripe is that the roughly 85 lawyers in the case are receiving $227 million in attorneys' fees and expenses, while the 25 primary plaintiffs and class representatives receive a total of just $395,270. According to the Frequently Asked Questions about the settlement, Toyota set up a $250 million fund to pay affected owners, as well. The money isn't for injuries or damages but for alleged economic loss to the vehicles. However, Sourbeer says he feels no personal suffering and still has the same car. In addition to the settlement, the automaker obviously has its own legal fees to deal with, as well. Sourbeer wonders how this is all going to affect Toyotas in the future. Obviously, the money has to come from somewhere, and it likely gets amortized over the company's vehicles in the coming years to add a few dollars to each one. That puts the problem back onto customers. Anyone involved in a class-action suit has likely seen this happen first hand. The lawyers take a large chunk of the money, and the rest is distributed in tiny morsels to those actually affected. Unfortunately, Sourbeer offers no solutions beyond saying the system needs to change.

Editors' Picks November 2023: Toyota Grand Highlander, Buick Envista and some lovely luxury vehicles

It's been a month since we served you with the full lot of Autoblog Editors' Picks, and that master list is going to continue to grow as more new cars enter the market. For November 2023, we have a trio of SUVs coming in at various sizes and price points including the Buick Envista, Toyota Grand Highlander and Mercedes-Benz GLS. And if you're looking for a convertible sports car, the BMW Z4 is one that should make your shortlist, as it finds its way into this month's of Editors' Picks, as well. In case you missed previous Editors' Picks posts, here’s a quick refresher on whatÂ’s going on here. We rate all the new cars we drive with a 1-10 score. Cars that are exemplary in their respective segments get an EditorsÂ’ Pick designation. Those are the ones weÂ’d recommend to our friends, family and anybody whoÂ’s curious and asks the question. The list that youÂ’ll find below consists of every car we rated in November that earned an EditorsÂ’ Pick. 2024 Toyota Grand Highlander 2024 Toyota Grand Highlander Limited Hybrid Max View 25 Photos Quick take: The Hybrid Max is the one to get, but the Grand Highlander comes highly recommended for its added space, nicer interior and fuel efficient powertrains. Score: 7 What it competes with: Kia Telluride, Jeep Grand Cherokee L, Chevy Traverse, Honda Pilot, Subaru Ascent, Ford Explorer, Toyota Highlander, Mazda CX-9, Kia Sorento, Buick Enclave, Nissan Pathfinder, VW Atlas, Mazda CX-90 Pros: Two hybrid powertrain options; exceptional cargo space; usable third row; refined and quiet ride. Cons: Expensive for the segment; the lesser hybrid powertrain is noisy and slow. From the editors: Senior Editor, Electric, John Beltz Snyder — "The Grand Highlander is a nice alternative to the standard Highlander for the Toyota faithful for its usable third row. The choice of powertrains is a huge boon, too, whether you want a fuel-sipping hybrid, or solid gas engine or a more robust hybrid with extra performance. YouÂ’re just going to have to pay a little more for it all." In-depth analysis: 2024 Toyota Grand Highlander Review: A strong, new three-row contender   2024 Buick Envista 2024 Buick Envista Sport Touring front three quarter View 19 Photos Quick take: The Envista is one of our top subcompact SUV picks. It packs tremendous value into a compelling design that looks far more expensive than it is. A homerun for Buick.