2000 Toyota 4runner Automatic 2.7l on 2040-cars

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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.

Submit your questions for Autoblog Podcast #319 LIVE!

We record Autoblog Podcast #319 tonight, and you can drop us your questions and comments regarding the rest of the week's news via our Q&A module below. Subscribe to the Autoblog Podcast in iTunes if you haven't already done so, and if you want to take it all in live, tune in to our UStream (audio only) channel at 10:00 PM Eastern tonight.
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Jeep checks out the Grand Wagoneer at Wagonmaster

Next-gen Toyota Tacoma mule caught towing in the desert

With the Chevrolet Colorado and GMC Canyon set to arrive in dealers in the near future, it's high time Toyota got to work on a replacement for the Tacoma, a vehicle whose present generation debuted in the middle of the Bush Administration. Now, we have images of that new pickup undergoing testing.
Our spy photographers picked up this heavily modified mule undergoing tow tests in the desert. It rides on a modified version of the current Taco's frame, as evidenced by shots of its undercarriage, although our spies cite the lack of riveted sections as indications that the current truck's footprint should remain unchanged.
Aside from underbody changes, this particular Tacoma featured a six-speed manual transmission, which we're expecting to be joined by a six-speed automatic. The current four- and five-speed autos found on the current truck will almost certainly be killed off. Marching to the grave with those slushboxes will be the two-door Regular Cab body style. Our spies are expecting Toyota to focus its efforts on the larger, more accessible Double Cab.