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    William Maley

    Tripower Making A Comeback At GM

      But not in the way you might expect

    Tripower is one of General Motors' most revered names. Used on Pontiac V8 engines from 1957-1966, Tripower referred to the use of three two-barrel carburetors on top of the engine. GM is bringing back the name for the next-generation Chevrolet Silverado and GMC Sierra. But in this case, Tripower carries a very different meaning.

    At the CAR Management Briefing Seminars yesterday, Mike Anderson, GM's executive director of global transmission and electrification hardware engineering said Tripower will now "refer to a suite of technologies that boosts horsepower and fuel economy" for the new 2.7L turbo-four. According to Automotive News, Tripower will include cylinder deactivation, intake valve lift control, and active thermal management.

    The new engine is expected launch sometime after the new trucks begin arriving at dealers this fall.

    Source: Automotive News (Subscription Required)



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    Wonder if they are using GORE Insulation to deal with the Thermal management.

    We are at Dell. Watch at 1:48 if you want to see the thermal capabilities of Gore Insulation.

     

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    35 minutes ago, Drew Dowdell said:

    What does thermal management really get them in terms of power or fuel economy though?

    I was also wondering this and as I looked around found the following info to be informative:

    https://www.jcmmachineandcoatings.com/thermal-management/

    Thermal management, as it applies to an internal combustion engine, is the idea of controlling heat and friction in order to attain the maximum performance, fuel economy, and longevity through the use of ceramic coatings. This is done through the use of thermal barriers, thermal dispersants, and dry film lubricants. Each of these categories is explained in detail in their corresponding pages.

    To fully understand the idea of thermal management, you must have an understanding of the first two laws of thermodynamics, they are as follows:

    1st law - The law of conservation of matter and energy - Matter and energy cannot be created or destroyed, only changed. For example when you burn a piece of paper, it is not gone; it has changed into ash and smoke.

    2nd law - This law states that heat has direction, it moves from an area of a large amount of heat to an area of a low amount of heat in order to achieve thermal equilibrium. Just as a hot cup of coffee cools off, the high amount of heat in the coffee is released into the surrounding atmosphere. Another example is an ice cube melting; in this case the heat in the atmosphere is absorbed by the ice and cool water to become the same temperature as the surrounding air.

    Good Read as presented on this subject from Clemson University.

    Advanced Thermal Management for Internal Combustion Engines.pdf

    SAE has a document they sell on this exact subject for maximizing engine performance.

    https://www.sae.org/publications/technical-papers/content/2006-01-1232/

    Advanced Thermal Management for Internal Combustion Engines - Valve Design, Component Testing and Block Redesign

    Advanced engine cooling systems can enhance the combustion environment, increase fuel efficiency, and reduce tailpipe emissions with less parasitic engine load. The introduction of computer controlled electro-mechanical valves, radiator fans, and coolant pumps require mathematic models and real time algorithms to implement intelligent thermal control strategies for prescribed engine temperature tracking. Smart butterfly valves can replace the traditional wax-based thermostat to control the coolant flow based on both engine temperature and operating conditions. The electric water pump and radiator fan replace the mechanically driven components to reduce unnecessary engine loads at high speeds and provide better cooling at low speeds. However, implementation of electro-mechanical actuators including the alternator and electrical storage devices introduces inefficiencies in mechanical to electrical energy conversion (and electrical to mechanical energy conversion), which may require increased fuel consumption over pure mechanical components. Empirical models can provide realistic component data used in simulation tools during the development process, and also define the basis for cooling system control algorithms. In this paper, a general framework to derive these empirical models is investigated for thermal management systems where the engine temperature must be accurately controlled in both steady state and transient operation. The evolution of automotive cooling systems also requires a paradigm shift in the engine block design. The design changes include isolated cylinder water jackets, temperature sensor arrays, and distributed smart valves to enable distinct cylinder-by-cylinder temperature maintenance for optimum combustion. This paper explores the introduction of a ‘coolant rail’ to accommodate specific cylinder temperature control defined by an on-demand cylinder dependent cooling strategy.

    WOW, 🤔 SAE even has a paper on Modeling of an Electric Thermal Management system

    https://www.nrel.gov/docs/fy15osti/63419.pdf

    Very interesting info on thermal management fluid loops for EV auto's batteries, cooling and heating systems.

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    7 minutes ago, balthazar said:

    I just threw up in a mouth a little there.

    🤔 By the over kill of info, the questions about Thermal Management, bringing back the name badge TriPower...........

     

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    Considering it's been over 50 years since the name was last used, Pontiac has been gone about a decade, and carbs have been gone for a couple decades, makes sense to repurpose the trademark..

    Edited by Cubical-aka-Moltar
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    Except for '03-04, "Mach 1" hasn't been used since 1978, but didn't you call using that name on a future SUV a "dreadful idea"?

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    20 minutes ago, balthazar said:

    Except for '03-04, "Mach 1" hasn't been used since 1978, but didn't you call using that name on a future SUV a "dreadful idea"?

    Yes, but that was a specific trim level, while TriPower was an engine feature option.  Sounds like the new use is going to be for an engine/powertrain feature also. 

    Edited by Cubical-aka-Moltar

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    Hey man bring back all those retro names, to relive the greatest of the past.

    To make Tripower great again.

    To make Blazer great again.

    To make Mach 1 great again.

    To make Lincoln great again.

    To make history great again. 

    To make great again, great, again.

    • Haha 2

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    Buick needs some retro naming also... maybe 'Dynaflow' for a electric CVT or something.   They tried 'Super' a decade ago, didn't seem to take.... and they really can't use 'Limited' again, since other brands use it now (Ford, Ram, Jeep, etc), so 'Avenir' instead.. 

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    15 hours ago, Cubical-aka-Moltar said:

    Considering it's been over 50 years since the name was last used, Pontiac has been gone about a decade, and carbs have been gone for a couple decades, makes sense to repurpose the trademark..

    It makes sense to use it but I think it should have been something like a hybrid and twin turbo setup or something like Volvo's supercharged and(in this case) twin turbo. Or maybe hybrid, supercharged, and turbocharged. 

    I think these three "powers" are terrible use of the trademark. 

    12 hours ago, regfootball said:

    i would think the regurge 'Tri-Power' it would be turbo + supercharger + electric motor assist

    Exactly my thinking. 

    1 hour ago, Cubical-aka-Moltar said:

    Buick needs some retro naming also... maybe 'Dynaflow' for a electric CVT or something.   They tried 'Super' a decade ago, didn't seem to take.... and they really can't use 'Limited' again, since other brands use it now (Ford, Ram, Jeep, etc), so 'Avenir' instead.. 

    A decade ago they were tacky badge-job vehicles. They've distinguished themselves much better now. 

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    28 minutes ago, ccap41 said:

    It makes sense to use it but I think it should have been something like a hybrid and twin turbo setup or something like Volvo's supercharged and(in this case) twin turbo. Or maybe hybrid, supercharged, and turbocharged. 

    I think these three "powers" are terrible use of the trademark.

    Yep.

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    8 hours ago, Cubical-aka-Moltar said:

    Buick needs some retro naming also... maybe 'Dynaflow' for a electric CVT or something.   They tried 'Super' a decade ago, didn't seem to take.... and they really can't use 'Limited' again, since other brands use it now (Ford, Ram, Jeep, etc), so 'Avenir' instead.. 

    I think GM is just waiting for the first EV for Buick and then the Electra will live again.

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    @balthazar WOW, first down vote from you ever. So why would using the Electra be wrong on a Buick Electra EV?

    I truly am interested to hear your point of view on this.

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    Not the first- maybe the 4th-ish... but at least one of those I recall was for the same suggestion.

    Just as the whole achingly kindergarden-esque dumbing down of auto names... this is yet another slam-dunk, whoo-hoo; lookie what I came up with, lowest common denominator, easy way out pillaging of other people's work with no regard for historical context.

    Call it the 'oHm' instead. Your welcome.

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    9 hours ago, balthazar said:

    Not the first- maybe the 4th-ish... but at least one of those I recall was for the same suggestion.

    Just as the whole achingly kindergarden-esque dumbing down of auto names... this is yet another slam-dunk, whoo-hoo; lookie what I came up with, lowest common denominator, easy way out pillaging of other people's work with no regard for historical context.

    Call it the 'oHm' instead. Your welcome.

    I totally get what your saying but you know the LAZY Marketing dweebs are going to use it. We ALL have been disappointed with GM's marketing and creation of auto names. They have had some of the best concepts with names that I consider to be awesome and not really used any of it. Latest Cadillac concepts come to mind.

    4th-ish, wow, guess I missed the first 3 :P  

    Thank you for your honesty :) 

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    10 hours ago, balthazar said:

    Not the first- maybe the 4th-ish... but at least one of those I recall was for the same suggestion.

    Just as the whole achingly kindergarden-esque dumbing down of auto names... this is yet another slam-dunk, whoo-hoo; lookie what I came up with, lowest common denominator, easy way out pillaging of other people's work with no regard for historical context.

    Call it the 'oHm' instead. Your welcome.

    You can't say that without knowing the vehicle it went on.  Suppose Buick continued to move up market and did a CT6 sized car on Omega, overtop of Lacrosse, but made it PHEV or EV only.  Wouldn't that make for a great Electra?

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    Only if said full-size Buick luxury sedan offered optional unicorn fur upholstery.

    We both know such a car has zero chance of appearing.

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    44 minutes ago, balthazar said:

    Only if said full-size Buick luxury sedan offered optional unicorn fur upholstery.

    We both know such a car has zero chance of appearing.

    Fine, make it an extended length Enclave. The Enclave Avenir is the modern interpretation of a Park Ave Ultra or Roadmaster Estate Limited anyway. 

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    Roadmaster Estate Avenir would be cool as would a Park Avenue Avenir.

    Electra Avenir full size sedan would Rock!

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    3 hours ago, Drew Dowdell said:

    Fine, make it an extended length Enclave. The Enclave Avenir is the modern interpretation of a Park Ave Ultra or Roadmaster Estate Limited anyway. 

    Fine, then call it what it is. An Enclave (    ) whatever.
    Just leave 'Electra' to RIP.

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    1 hour ago, balthazar said:

    Fine, then call it what it is. An Enclave (    ) whatever.
    Just leave 'Electra' to RIP.

    Not having ever been in a Buick Electra or any real knowledge of why it was called an Electra, I honestly see nothing wrong with using that name on a Buick Sedan that has an Electric power train. Might as well get some more miles out of using the proper name on a proper Buick EV.

    I have to honestly say I think this is a really messed up wiki page as they say Buick had an Electra model from 1959 to 1990. Yet what they show as Electra station wagons, sedans, coupes etc. I never heard them called that.

    https://en.wikipedia.org/wiki/Buick_Electra

    electra park avenue

    electra estate wagon

    😕

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    9 minutes ago, dfelt said:

    Not having ever been in a Buick Electra or any real knowledge of why it was called an Electra, I honestly see nothing wrong with using that name on a Buick Sedan that has an Electric power train. Might as well get some more miles out of using the proper name on a proper Buick EV.

    It was named after the first large U.S. turboprop airliner, the Lockheed Electra.

    I just feel its blatantly SIMPLISTIC and OBVIOUS, which makes me cringe until my shoulders drive into my ears.

    NOT TO MENTION - we'll have to read dozens of quik-notes / armchair mini history lessons and knee-slapping cornball jokes about how the new Buck EV 'Ain't yer grandpop's Electra' and 'it's no longer 41 feet long- yuck yuck!' I can see it coming like an F5 tornado on the high Kansas plains and it's all so utterly EXHAUSTING.

    Spend a little time/effort, and come up with something else- I know it's hard, I know most of the good ones are taken, but shit- we got 'Volt' & 'Bolt' in only the last few years!

    If the car was akin to the Electra of yore, I'd be much better with it. But it won't be close and the slop-journalism of today will fall in the same groundhog hole of hyperbole they always do.

    I have to honestly say I think this is a really messed up wiki page as they say Buick had an Electra model from 1959 to 1990. Yet what they show as Electra station wagons, sedans, coupes etc. I never heard them called that.


    Pretty sure that's all correct info- skimmed it and saw nothing radically amiss.

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    44 minutes ago, balthazar said:

    It was named after the first large U.S. turboprop airliner, the Lockheed Electra.

    I just feel its blatantly SIMPLISTIC and OBVIOUS, which makes me cringe until my shoulders drive into my ears.

    NOT TO MENTION - we'll have to read dozens of quik-notes / armchair mini history lessons and knee-slapping cornball jokes about how the new Buck EV 'Ain't yer grandpop's Electra' and 'it's no longer 41 feet long- yuck yuck!' I can see it coming like an F5 tornado on the high Kansas plains and it's all so utterly EXHAUSTING.

    Spend a little time/effort, and come up with something else- I know it's hard, I know most of the good ones are taken, but shit- we got 'Volt' & 'Bolt' in only the last few years!

    If the car was akin to the Electra of yore, I'd be much better with it. But it won't be close and the slop-journalism of today will fall in the same groundhog hole of hyperbole they always do.
     


    Pretty sure that's all correct info- skimmed it and saw nothing radically amiss.

    Appreciate your input and comments on the wiki page. 

    😮 WOW, guess the electra of the 70's, 80's and 1990 model never really sold here since I in looking at the pictures can say I never really saw them,  missed a series of an auto line. wow.

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    On 8/1/2018 at 9:49 PM, Suaviloquent said:

    Hey man bring back all those retro names, to relive the greatest of the past.

    To make Tripower great again.

    To make Blazer great again.

    To make Mach 1 great again.

    To make Lincoln great again.

    To make history great again. 

    To make great again, great, again.

    Your hope has been acknowledged.  Watch for a change soon.  Wait for it.  Keep waiting...

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    11 hours ago, dfelt said:

    Appreciate your input and comments on the wiki page. 

    😮 WOW, guess the electra of the 70's, 80's and 1990 model never really sold here since I in looking at the pictures can say I never really saw them,  missed a series of an auto line. wow.

    This clearly illuminates my point.  Astonishing.

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      The Vehicles
      At the event, GM had 10 vehicles on display and one shown via digital renderings. The current plan is to start launching the new models beginning later this year.
      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.
    • By William Maley
      General Motors will be bringing back the Hummer name to sell a new electric truck as part of the GMC lineup.
      The Wall Street Journal first broke the news yesterday with GM moving forward on plans to bring Hummer back that was first reported back in June. The report also said that the company would tout the return with a Super Bowl ad featuring NBA star LeBron James. GM declined to comment.
      The decision is likely due to the planned $3 billion investment for the Detroit-Hamtramck plant that we reported back in October. The investment is to gear up the plant to build an electric pickup for GMC and an electric Cadillac SUV by 2023. But in 2021, the plant will produce a "low volume BT1 pickup" under a different brand. At the time we speculated that it may be Hummer. This seems to lineup with the reporting done by the Wall Street Journal which says the truck will be similar in design to the Jeep Renegade.
      Bloomberg adds that there are plans for a large SUV for Hummer if the truck proves successful according to sources. The sources also say that the company is considering selling the new Hummer truck in existing dealers under the name of “Hummer by GMC.”
      Source: Wall Street Journal (Subscription Required), Automotive News (Subscription Required)
      H/T to @balthazar for alerting us to this story

      View full article
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