Update: Why The SRX Hybrid Was Killed

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Thread: Update: Why The SRX Hybrid Was Killed

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    Update: Why The SRX Hybrid Was Killed

    Update: Why The SRX Hybrid Was Killed
    www.GMInsideNews.com
    June 2, 2011
    By: Nick Saporito


    Update: Apparently some have misinterpreted our piece as stating that there was a technical "problem" with the SRX PHEV's battery pack. That is not the case. As stated in the below original article, the battery was "not seeing the efficiency gains that GM expected from it." The heart of any hybrid system is the battery pack used to store the vehicle's energy. In the case of the SRX, the lithium ion pack that GM had engineered into the vehicle was not meeting the efficiency requirements GM management set for the vehicle program. That does not constitute a technical problem with the pack, but rather that said battery pack failed to churn out GM's efficiency targets when mated to the SRX.

    Late last week news broke that the unannounced, but long-known SRX plug-in hybrid had been canned. The reasoning for the last minute about-face was never reported by the mainstream press, but GMI has since learned what led to the demise of the stillborn Cadillac hybrid.

    According to sources familiar with the program, GM management elected to decommission the SRX PHEV because the vehicle’s battery was not seeing the efficiency gains that GM expected from it. A similar issue led to the demise of the proposed Cadillac XTS hybrid system nearly a year ago.

    Both the SRX and XTS were slated to use a tweaked version of GM’s Two-Mode Hybrid propulsion system. The revised system was expected to utilize a lithium ion battery back in place of the current system’s nickel-metal-hydride pack. It was also expected to see revised operating modes, possibly adding more modes to the current system. Topping off the new system was to be a plug-in option, similar to the recently-launched Chevrolet Volt.

    The SRX PHEV was slated to launch sometime in the 2013 model-year.

    GMI’s sources stated that GM has discontinued working on that particular hybrid program entirely; however GM has a new hybrid system that has already been in the works that will replace it.

    Sources familiar with GM’s hybrid plans state that GM has been working on an all-new version of the Two-Mode system that should be ready for utilization in the 2015 model-year. The new system is said to have four fixed modes and take several cues from the Volt’s Voltec (formerly known as E-Flex) system. So instead of putting out an expensive, inefficient system in 2013, it sounds like GM will just wait another year or two and utilize the all-new system.

    In addition to the PHEV system, the 2013 Cadillac SRX was also expected to receive an all-new interior and other additions. As far as GMI knows, those additions are still expected to launch as planned.
    Last edited by nsap; 06-03-2011 at 02:06 PM.
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    Re: Why The SRX Hybrid Was Killed

    I'm assuming XTS is still on track?

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    Re: Why The SRX Hybrid Was Killed

    From what I know the battery was going to be about 8KWh. In a vehicle as heavy as the SRX or XTS that would probably only yield an all electric range of about 8 miles. After that the efficiency is basically equal to the two mode system.

    I wouldn't say the battery is to blame. But in this case adding a bigger battery to the two mode with a plug just didn't make sense from a cost benefit stand point.

    With the new rumored 4-mode hybrid system. And future Li-Ion improvements to increase energy density, reduce weight and cost we still likely see a future system. I would guess around 2015 time frame. (Similar time frame as to when we might see a Gen II Volt on an improved battery)

    The Gen II Volt will likey share many components to this new PHEV even though the processes are completely different.
    Last edited by MechEng; 06-02-2011 at 09:45 AM.

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    Re: Why The SRX Hybrid Was Killed

    The 2020 Cadillac lineup is going to be incredible

    God Bless the Blue Bullet.

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    Re: Why The SRX Hybrid Was Killed

    Quote Originally Posted by AdmiralViscen View Post
    The 2020 Cadillac lineup is going to be incredible
    The 2020 model lineup for all divisions/models of ALL manufacturer's will be incredible.
    Look at GM's most recent products..there is definitely a future there...

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    Re: Why The SRX Hybrid Was Killed

    Quote Originally Posted by AdmiralViscen View Post
    The 2020 Cadillac lineup is going to be incredible
    I'm looking forward to the refresh of the '20 Cadillacs in '26.

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    Re: Why The SRX Hybrid Was Killed

    Quote Originally Posted by AdmiralViscen View Post
    The 2020 Cadillac lineup is going to be incredible
    That would be one Plane style statement.

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    Re: Why The SRX Hybrid Was Killed

    Anyone think we'll be seeing an eAssist stop-gap measure for Cadillac before then? Or will that only be coming out for Buick?

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    Re: Why The SRX Hybrid Was Killed

    Sounds to me like the Malibu will not have a Hybrid model

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    Re: Why The SRX Hybrid Was Killed

    Well that's unfortunate and a little worrying. So if there's no PI XTS AND no twin-turbo then we get no up-powered model at all huh? Just the 3.6L.

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    Re: Why The SRX Hybrid Was Killed

    Quote Originally Posted by AdmiralViscen View Post
    The 2020 Cadillac lineup is going to be incredible
    That's so far in the future, who knows if there will even be a Cadillac anymore.

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    Re: Why The SRX Hybrid Was Killed

    It will be ok because the XTS is a stopgap, so we will get a high powered ULS to replace the XTS. The XTS will be on a shortened lifespan but GM is prepared to extend that to 7 or 8 years just in case.

    God Bless the Blue Bullet.

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    Re: Why The SRX Hybrid Was Killed

    Quote Originally Posted by Amphibian View Post
    Well that's unfortunate and a little worrying. So if there's no PI XTS AND no twin-turbo then we get no up-powered model at all huh? Just the 3.6L.
    Twin-turbo is still on as far as I know.
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    Re: Why The SRX Hybrid Was Killed

    Quote Originally Posted by AdmiralViscen View Post
    It will be ok because the XTS is a stopgap, so we will get a high powered ULS to replace the XTS. The XTS will be on a shortened lifespan but GM is prepared to extend that to 7 or 8 years just in case.
    I would like to subscribe to your newsletter.

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    Re: Why The SRX Hybrid Was Killed

    2015???? Things just keep getting pushed back.

    Cadillac just now realized that this system wasn't going to be good enough and too expensive? It's evident how little was done on the project up to this point, otherwise they would known this a long time ago.


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