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  • William Maley
    William Maley

    Mazda Says Next-Gen Skyactiv will Have EV Levels of Efficiency

      There is some fuzzy math involved to get to this conclusion

    Mazda hasn't even put their Skyactiv-X technologies into production and already they are talking about the next-generation known as Skyactiv-3.

    Automotive News reports that Mazda's powertrain chief Mitsuo Hitomi said the gasoline version of Skyactiv-3 will have the same emission levels as an electric vehicle.

    Hitomi told attendees of automotive technical conference in Toyko that Mazda will be working on improving the thermal efficiency of its engines. This reduces the "amount of combustion energy lost to heat while increasing the amount harnessed to power the wheels." If Mazda can improve the thermal efficiency by 27 percent, to 56 percent, Hitomi said it could achieve emissions similar to an EV.

    How does he come this conclusion? There is a bit of fuzzy math to reach this. It is based Mazda's measurement of wheel-to-wheel emission for electric vehicles and internal combustion engines. For electric vehicles, Mazda includes the carbon dioxide emitted in the production of electricity for the vehicle. The emissions from oil extraction and refining are included in the measurement for internal combustion engines. Mazda's calculations say that some EVs are dirtier than fuel efficient gas-powered models.

    Mazda also believes that it cut carbon dioxide emissions by 25 percent with the next-generation of Skyactiv, giving them "real world well-to-wheel fuel economy comparable to EVs deriving their electricity through the burning of liquefied natural gas," according to Hitomi.

    No timeframe was given as to when Skyactiv-3 would debut.

    Source: Automotive News (Subscription Required)



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    Interesting, but if he is going to say that some EV's are dirtier than gas powered auto's he also needs to be equal in the fact that as most power production in the US is now based on Natural gas or totally green based on Solar, Wind and Hydro and as such, far cleaner and superior to Gas powered auto's.

    The amount of pollution from ICE auto's dropped on roads going into the water way is far greater in damage than the EV auto. How this is balanced due to the toxic waste of battery production is another item that needs to be taken into consideration too.

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    2 hours ago, dfelt said:

    Interesting, but if he is going to say that some EV's are dirtier than gas powered auto's he also needs to be equal in the fact that as most power production in the US is now based on Natural gas or totally green based on Solar, Wind and Hydro and as such, far cleaner and superior to Gas powered auto's.

     

    Or Nuclear..we have Nuclear power here in NE Ohio...I wonder what percentage of power generation still uses coal...

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    21 minutes ago, Cubical-aka-Moltar said:

    Or Nuclear..we have Nuclear power here in NE Ohio...I wonder what percentage of power generation still uses coal...

    This story done by the Washington post is exceptional as the graphs of which I have put a few below are able to be changed to see which power your interested in. Example is in the below one that shows Natural Gas, you can click the Nuclear and it shows you which states use it the most and in relation to the rest of the sources of power. Based on 2015 stats. Some pretty cool charts to look at especially the break out when you look at just a single power source and where it is most concentrated.

    https://www.washingtonpost.com/graphics/national/power-plants/?utm_term=.33c3c8c35133

    Natural Gas - 1,793 plants currently generating 34% of our nation's power

    Coal - 400 currently generating 30% of our nation's power

    Nuclear - 61 plants generating 20% of our nation's power

    Hydro - 1,444 generating 7% of our nation's power

    Wind - 999 generating 6% of our nation's power

    Solar - 1,721 producing 1% of our nation's power

    Oil - 1, 076 producing .5% of our nations power

    top-map-600.jpg?c=459

    image.png

    image.png

    This is the latest report from the GOV:

    https://www.eia.gov/tools/faqs/faq.php?id=427&t=3

    What is U.S. electricity generation by energy source?

    In 2016, about 4.08 trillion kilowatthours (kWh) of electricitywere generated at utility-scale facilities in the United States.2  About 65% of this electricity generation was from fossil fuels (coal, natural gas, petroleum, and other gases), about 20% was from nuclear energy, and about 15% was from renewable energy sources. The U.S. Energy Information Administration (EIA) estimates that an additional 19 billion kWh (or about 0.02 trillion kWh) of electricity generation was from small-scale solar photovoltaic systems in 2016.3

    Major energy sources and percent shares of U.S. electricity generation at utility-scale facilities in 2016

    • Natural gas = 33.8%
    • Coal = 30.4%
    • Nuclear = 19.7%
    • Renewables (total) = 14.9%
      • Hydropower = 6.5%
      • Wind = 5.6%
      • Biomass = 1.5%
      • Solar  = 0.9%
      • Geothermal = 0.4%
    • Petroleum = 0.6%
    • Other gases = 0.3%
    • Other nonrenewable sources = 0.3%
    • Pumped storage hydroelectricity = -0.2%4
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    And coal is in steady decline as we get cleaner energy so that will favor EV’s more.

    Their claim of 56% efficient I don’t believe.  A Formula 1 car is about 48 or 49% efficient, a Mazda 3 is going to top that?  I don’t think so.

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    17 minutes ago, smk4565 said:

    And coal is in steady decline as we get cleaner energy so that will favor EV’s more.

    Their claim of 56% efficient I don’t believe.  A Formula 1 car is about 48 or 49% efficient, a Mazda 3 is going to top that?  I don’t think so.

    Yup, this is also the same company that has tried to say the Rotary engine is a superior ICE platform for a long time before science showed it was actually less efficient and they dropped it.

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      Updated Chevrolet Bolt: The first vehicle to be launched in this offensive. It will get an updated interior with a more premium dash. Chevrolet Bolt EUV: The crossover-variant of the Bolt, it is about five-inches longer and rides on a wheelbase that has been stretched by three inches. An updated roofline reportedly eliminates the small front windows on the Bolt. The EUV will also be the first model outside of Cadillac to get Super Cruise. Chevrolet Midsize Crossover: About the same size as the Blazer, this model has an aggressive design and features a low roofline. A pair of 18-inch multimedia displays dominate the interior. Chevrolet Full-Size Truck: This was the model only shown in digital renderings according to those who were at the event. It will complement the Silverado and be aimed at those who want something to be used on a job site - not like the upcoming GMC Hummer Truck or Rivian which are aimed more at lifestyle folks. This model is expected to arrive in 2025. Buick Crossover and SUV: These two models didn't have a name and were wearing a design that was described by the Detroit Free Press as a "vaguely European look".  GMC Hummer Truck: This will only be available in a crew-cab configuration with a five-foot bed. The design will be utilitarian and boxy. Inside, two large screens will serve as the instrument cluster and infotainment system. Don't expect any leather as many of materials used inside will be made from recycled materials. The truck will also have removable roof panels (like the Jeep Wrangler, that can be stored in the front trunk. GMC Hummer SUV: Basically the same as the truck, albeit using a shorter wheelbase. Cadillac Lyriq: We have seen teasers of this model last year and Cadillac dropped another this week showing off the silhouette - reminding us some crossovers from Jaguar and Porsche. The vehicle is wide and rides on 23-inch wheels. Size-wise, it is similar to the XT5. The interior boasts a 34-inch-wide high-def screen and seating for four, though the production model may have seating for five. Cadillac Celestiq: A new four-door flagship sedan that has a long front end and a fastback rear according to those who saw the clay model. It will be hand-built and carry a six-figure pricetag. Cadillac Large SUV: About the size of an Escalade, it be complementary vehicle to it. The model will have a more traditional design than the other Cadillac EVs. Inside, it will boast large screens up front and three-rows of seating. Source: Roadshow, Detroit Free Press, The Drive, General Motors
      Press Release is on Page 2


      GM Reveals New Ultium Batteries and a Flexible Global Platform to Rapidly Grow its EV Portfolio
      WARREN, Mich. – Starting today, General Motors Co. (NYSE: GM) is gathering hundreds of employees, dealers, investors, analysts, media and policymakers to share details of its strategy to grow the company’s electric vehicle (EV) sales quickly, efficiently and profitably.
      “Our team accepted the challenge to transform product development at GM and position our company for an all-electric future,” said Mary Barra, GM chairman and CEO. “What we have done is build a multi-brand, multi-segment EV strategy with economies of scale that rival our full-size truck business with much less complexity and even more flexibility.”
      The heart of GM’s strategy is a modular propulsion system and a highly flexible, third-generation global EV platform powered by proprietary Ultium batteries. They will allow the company to compete for nearly every customer in the market today, whether they are looking for affordable transportation, a luxury experience, work trucks or a high-performance machine.
      “Thousands of GM scientists, engineers and designers are working to execute an historic reinvention of the company,” said GM President Mark Reuss. “They are on the cusp of delivering a profitable EV business that can satisfy millions of customers.”
      Ultium Batteries and Propulsion System Highlights
      GM’s new Ultium batteries are unique in the industry because the large-format, pouch-style cells can be stacked vertically or horizontally inside the battery pack. This allows engineers to optimize battery energy storage and layout for each vehicle design. Ultium energy options range from 50 to 200 kWh, which could enable a GM-estimated range up to 400 miles or more on a full charge with 0 to 60 mph acceleration as low as 3 seconds. Motors designed in-house will support front-wheel drive, rear-wheel drive, all-wheel drive and performance all-wheel drive applications. Ultium-powered EVs are designed for Level 2 and DC fast charging. Most will have 400-volt battery packs and up to 200 kW fast-charging capability while our truck platform will have 800-volt battery packs and 350 kW fast-charging capability. GM’s flexible, modular approach to EV development will drive significant economies of scale and create new revenue opportunities, including: 
      Continuous Improvement in Battery Costs: GM’s joint venture with LG Chem will drive battery cell costs below $100/kWh. The cells use a proprietary low cobalt chemistry and ongoing technological and manufacturing breakthroughs will drive costs even lower. Flexibility: GM’s all-new global platform is flexible enough to build a wide range of trucks, SUVs, crossovers, cars and commercial vehicles with outstanding design, performance, packaging, range and affordability. Capital Efficiency: GM can spend less capital to scale its EV business because it is able to leverage existing property, including land, buildings, tools and production equipment such as body shops and paint shops. Complexity Reduction: The vehicle and propulsion systems were designed together to minimize complexity and part counts beyond today’s EVs, which are less complex than conventional vehicles powered by internal combustion engines. For example, GM plans 19 different battery and drive unit configurations initially, compared with 550 internal combustion powertrain combinations available today. Rising Customer Acceptance: Third-party forecasters expect U.S. EV volumes to more than double from 2025 to 2030 to about 3 million units on average. GM believes volumes could be materially higher as more EVs are launched in popular segments, charging networks grow and the total cost of ownership to consumers continues to fall. New Sources of Revenue: By vertically integrating the manufacture of battery cells, the company can reach beyond its own fleet and license technology to others. The first generation of GM’s future EV program will be profitable. The initial programs will pave the way for further accretive growth. GM’s technology can be scaled to meet customer demand much higher than the more than 1 million global sales the company expects mid-decade.
      Upcoming Launches and Reveals
      Chevrolet, Cadillac, GMC and Buick will all be launching new EVs starting this year. The next new Chevrolet EV will be a new version of the Bolt EV, launching in late 2020, followed by the 2022 Bolt EUV, launching Summer 2021. The Bolt EUV will be the first vehicle outside of the Cadillac brand to feature Super Cruise, the industry's first true hands-free driving technology for the highway, which GM will expand to 22 vehicles by 2023, including 10 by next year.
      The Cruise Origin, a self-driving, electric shared vehicle, shown to the public in January 2020 in San Francisco, was the first product revealed using GM’s third generation EV platform and Ultium batteries. Next will be the Cadillac Lyriq luxury SUV in April. Details about its launch will be shared then. The reveal of the Ultium-powered GMC HUMMER EV will follow on May 20. Production is expected to begin in Fall 2021 at GM’s Detroit-Hamtramck assembly plant, GM’s first assembly plant 100 percent dedicated to EV production.

      View full article
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