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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.

Toyota sold a million hybrids in last nine months, 6M since 1997

Toyota's first hybrid model – the Prius – went on sale in 1997 in Japan. It took 14 years for the company to see a cumulative total of three million hybrids (a mark reached in March 2011). Today, Toyota announced that its global sales figures of all of its gas-electric models (and there are a lot of them now, including ones we've barely heard of here in the US, like the Crown Majesta or the Harrier Hybrid) have reached six million. Toyota calculates that all those hybrids have saved 41 million tons of CO2 emissions from entering the atmosphere. Toyota's ever-increasing hybrid sales pace means the company sold as many in the last three years as it did in the first fourteen. As you can see in our chart, the trendline shows that we'll hit the next-million mark in short order. In fact, Toyota says that it sold a million hybrids in the last nine months, the shortest time it has ever taken the automaker to sell that many hybrids. Part of the reason is that there are 24 hybrid Toyota and Lexus models available around the world, and Toyota says another 15 will be coming in the next two years. Anyone want to guess when Toyota will hit seven million? August? Worldwide Sales of Toyota Hybrids Top 6 Million Units Toyota City, Japan, January 15, 2014-Toyota Motor Corporation announces that cumulative global sales of its hybrid vehicles topped the 6 million unit mark as of December 31, 2013, reaching 6.072 million units1. The latest million-unit milestone was achieved in the fastest time yet for Toyota, taking just nine months. Helping mitigate the environmental effects of vehicles is a priority at Toyota. Based on its belief that environment-friendly vehicles can only truly have a positive impact if they are widely used, Toyota has endeavored to encourage the mass-market adoption of hybrid vehicles. As of this month, Toyota sells 24 hybrid passenger car models and one plug-in hybrid model in approximately 80 countries and regions around the world. Furthermore, within the next two years, Toyota will launch a total of 15 new hybrid vehicles worldwide, including the new "Harrier Hybrid" in Japan on January 15 and the new "Highlander Hybrid" in the United States in the near future. Toyota will continue augmenting its product lineup even further and increasing the number of countries and regions where it sells hybrid vehicles.

Toyota recalls 2016 RAV4, RX350, and ES350 for stability failure

The Basics: Toyota will recall 4,170 examples of the 2016 RAV4, 90 units of the 2016 Lexus RX350, and 12,400 units of the 2016 ES350. The Problem: A component in the brake actuator assembly may have damage from a manufacturing error. The actuator controls the anti-lock brakes, traction control, stability control, and other systems. If the part doesn't work properly these safety systems might not activate properly. Accidents/Injuries: Toyota spokesperson Amanda Rice told Autoblog, "Regarding the recent recalls, alleged crashes, injuries, and fatalities are reported in many ways to many different organizations. We are not providing specifics at this time." The Fix: Dealers will check the brake actuator's serial number and will replace it if the part comes from a period when the damage could have happened. If you own one: Toyota will contact affected owners by mail. Related Video: TOYOTA RECALLS CERTAIN 2016 MODEL YEAR RAV4 AND LEXUS RX AND ES VEHICLES TORRANCE, Calif., April 6, 2016 – Toyota Motor Sales, USA, Inc. today announced that it is recalling approximately 4,170 Model Year 2016 Toyota RAV4; approximately 90 Model Year 2016 RX350; and approximately 12,400 Model Year 2016 ES350. The involved vehicles are equipped with a Brake Actuator assembly that enables enhanced brake control functions including the Anti-lock Braking System (ABS), Traction Control (TRAC), and Vehicle Stability Control (VSC), among others. There is a possibility that a component inside the actuator could have been damaged during manufacturing, preventing the actuator from operating properly. This could cause a loss of vehicle stability control, increasing the risk of crash. All known owners of the affected Toyota vehicles will be notified by first class mail. Toyota and Lexus dealers will check the serial number of the Brake Actuator and replace actuators assembled during a specific production period. Information about automotive recalls, including but not limited to the list of involved vehicles, is subject to change over time. For the most up-do-date Safety Recall information on Toyota, Lexus or Scion vehicles, customers should check their vehicle's status by visiting toyota.com/recall and entering the Vehicle Identification Number (VIN). Safety Recall inquiry by individual VIN is also available at the NHTSA site: safercar.gov/vin.