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Toyota reveals latest autonomous tech test bed

Toyota revealed its latest autonomous technology effort Friday, a sophisticated Lexus LS 600hL prototype that showcases its plans to advance in the emerging field. The Lexus is the first developed entirely by the company's in-house Toyota Research Institute and it will focus on the car's ability to learn and see behavior on the road. Toyota is showing the car at the Prius Challenge event at Sonoma Raceway. The Lexus uses Lidar, radar, and sensors, which potentially reduce reliance on mapping. The prototype advances Toyota's last concept vehicle shown at the Consumer Electronics Show in 2013. This one is said to be more flexible and it will focus on Toyota's two autonomous tech pillars, called Guardian and Chauffeur. Guardian is meant to improve safety features, while Chauffeur moves toward full autonomy. "We believe Guardian can probably be deployed sooner and more widely than Chauffeur, providing high-level driver-assist features capable of helping mitigate collisions and save lives, sooner rather than later," Toyota Research Institute Gill Pratt said in a statement. Related Video: Green Lexus Toyota Autonomous Vehicles Luxury Sedan lexus ls

2016 Toyota RAV4 Hybrid electrifies with updated styling, more tech

Since the launch of the Prius, Toyota has been closely identified with hybrids and electrification. However outside of the rather niche RAV4 EV, the company hasn't brought the efficient tech to the smallest crossover in its US range. That all changes with the debut of the 2016 RAV4 Hybrid at the 2015 New York Auto Show, and the crossover launches alongside a thoroughly refreshed RAV4 lineup. Similar to the Lexus NX 300h, the RAV4 Hybrid combines a 2.5-liter, four-cylinder engine running on the Atkinson cycle and an electric motor, and both axles get power thanks to the standard Electronic On-Demand All-Wheel-Drive System. Toyota is keeping the exact technical specs about the CUV a secret until closer to the fall launch but admits the hybrid setup offers more than the 176 horsepower in the internal combustion model. The electric assistance means quicker acceleration and better fuel economy, as well. Beyond just the availability of the hybrid powertrain, the 2016 RAV4 gets sharper, more aggressive styling. The changes start at the nose where the foglights are recessed in the front bumper, and the design draws the eye across the lower grille. There are also reshaped lights at the rear and a redesigned lower bumper with silver skid plate trim. Inside, the improvements include niceties like better material quality, an added USB port up front and cupholders for tall mugs. While the styling looks great, Toyota is also seriously upgrading the available tech for its strong-selling CUV. Buyers can spec a full array of LED lighting, including the headlights, running lights and taillights. There's also the new Toyota Safety Sense suite that adds pre-collision braking, lane departure warning radar cruise control and more. For help with parking, the company has the four-camera Bird's Eye View Monitor, as well. The RAV4's trims carry over and get a new addition called the SE. Its biggest features are a retuned sport suspension, 18-inch wheels, contrasting exterior trim and a black headliner. It also comes fairly loaded with features with the aforementioned LED lights. With all of these changes, Toyota is continuing to take the crossover market seriously. Look forward to live images of the upgraded RAV4 from the Big Apple in the near future.

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.