RE: Hummer EV with 11,500lb ft confirmed
Thursday 30th January 2020
Hummer EV with 11,500lb ft confirmed
Yes, you read that right. And it'll hit 60mph in three seconds
The Hummer, former posterboy for gas guzzling SUVs, is to be relaunched this year with an all-electric battery powertrain producing 1,000hp and, get this, 11,500lb ft of torque. Yes, eleven thousand. Admittedly it seems this headline figure for the fourth-generation Hummer, which succeeds the H3 that went off sale in 2010, applies to the wheel (and not motor). But it means the heavyweight will be capable of sprinting from 0-60mph in three seconds dead. Hands up who saw that coming.
So far, we’ve only a 15-second preview video to go on, which does little more than confirm that the Hummer will be part of GMC’s ‘quiet revolution’ and the aforementioned stats. We’re also given a glimpse of the car’s front end, which is predictably butch and squared off, with what look to be active LEDs that join to form a light bar. The vertical slats, a clear nod to the old Hummer, separate letters that spell out the model’s name.
The car is set to make its official debut on May 20th before production begins at General Motors’ Detroit Hamtramck assembly plant. To promote the new Hummer, GMC has created a 30-second advert that’ll play during the Super Bowl – we’ll leave you to guess how much that slot cost – with NBA star Le Bron James included in the footage.
But while the news is likely to offend as many people as it excites (what with Hummers being famed for their big, thirsty engines), it does appear to be in line with other changes in the industry. Apparently by coincidence, fellow US car maker Lincoln has also revealed that it is going to produce an all-electric SUV in collaboration with Rivian, the American firm responsible for the 765hp R1S. It comes after Lincoln’s parent company, Ford, invested £386 million into the former start-up at the end of 2018.
So yes, it seems even the US is going electric. But rest assured big trucks are going nowhere.
Discussion
Yawn. Another pointless land-tank which at a guess, will not adequately deal with:
1) Range (or lack thereof especially when towing).
2) The realities of hauling 4000lbs of battery everywhere.
3) What happens when this enormous hunk of crap, hits another vehicle and transfers all that kinetic energy into whatever poor shmuck is on the receiving end.
Beyond this immediate turd of a vehicle, people seem to miss the fact that mining cobalt and lithium for the batteries, and subsequently burning coal to generate the electricity to charge them is an environmental disaster.
I'm not an electric hater, but feel like there's some perspective consistently missing from the picture.
1) Range (or lack thereof especially when towing).
2) The realities of hauling 4000lbs of battery everywhere.
3) What happens when this enormous hunk of crap, hits another vehicle and transfers all that kinetic energy into whatever poor shmuck is on the receiving end.
Beyond this immediate turd of a vehicle, people seem to miss the fact that mining cobalt and lithium for the batteries, and subsequently burning coal to generate the electricity to charge them is an environmental disaster.
I'm not an electric hater, but feel like there's some perspective consistently missing from the picture.
drpep said:
Yawn. Another pointless land-tank which at a guess, will not adequately deal with:
1) Range (or lack thereof especially when towing).
2) The realities of hauling 4000lbs of battery everywhere.
3) What happens when this enormous hunk of crap, hits another vehicle and transfers all that kinetic energy into whatever poor shmuck is on the receiving end.
Beyond this immediate turd of a vehicle, people seem to miss the fact that mining cobalt and lithium for the batteries, and subsequently burning coal to generate the electricity to charge them is an environmental disaster.
I'm not an electric hater, but feel like there's some perspective consistently missing from the picture.
Yes, you do appear to need some perspective.1) Range (or lack thereof especially when towing).
2) The realities of hauling 4000lbs of battery everywhere.
3) What happens when this enormous hunk of crap, hits another vehicle and transfers all that kinetic energy into whatever poor shmuck is on the receiving end.
Beyond this immediate turd of a vehicle, people seem to miss the fact that mining cobalt and lithium for the batteries, and subsequently burning coal to generate the electricity to charge them is an environmental disaster.
I'm not an electric hater, but feel like there's some perspective consistently missing from the picture.
A large, heavy fossil fueled vehicle is no less hazardous to crash into than a large electric vehicle. They don’t weigh all that much differently, and you can’t be more dead from one to the next.
Mining cobalt is far less intrusive and damaging to the environment than oil extraction is, and will always be on a far smaller scale. Also oil refining and distribution is very wasteful and emissions heavy, using vast amounts of electricity, and the burning of fossil fuels to achieve. And then it’s all inefficiently burnt at it’s final point of use, generating yet more pollution for us all to breathe in, globally, regardless of its source.
Electric car, yes some localised pollution from sourcing and manufacturing , before recycling is considered. Still much less wasteful and polluting than oil extraction and refining.
Fossil fuel Power generation and distribution produces pollution, yes, but again the energy is generated way more efficiently than localized point of use fossil fuel burning in an IC vehicle. And you can’t just ignore the significant amount of renewable sources with zero pollution that an EV can take advantage of. What renewable sources can fossil fueled vehicles use in any sort of meaningful way?
And then there’s the simple fact that an EV is 90%+ efficient, and produces literally zero localised pollution. An IC vehicle is 15-20% efficient and produces an infinite amount more localised pollution.
The whole cobalt mining and power generation argument is quite simply bilge and is not supported by the facts. From source to point of use, an EV will always be way more environmentally friendly and efficient than a fossil fueled vehicle could ever be, and that’s the whole point; maximising and efficiently utilizing available energy sources.
Time for you to take your blinkers off.
That torque figure is mistake. There's no gearbox available on this size vehicle that could handle the huge force of 11,500lb ft.
My ex Volvo FH16 700 was/is one of the most powerful trucks on the market, its 16litre engine producing over 3000lb ft pushed the limit of the I shift box as it was.
Id like to see an Ev hummer pull 44t on the limiter up hill at 100kph..
My ex Volvo FH16 700 was/is one of the most powerful trucks on the market, its 16litre engine producing over 3000lb ft pushed the limit of the I shift box as it was.
Id like to see an Ev hummer pull 44t on the limiter up hill at 100kph..
Edited by A1VDY on Thursday 30th January 19:24
A1VDY said:
That torque figure is mistake. There's no gearbox available on this size vehicle that could handle the huge force of 11,500lb ft.
My ex Volvo FH16 700 was/is one of the most powerful trucks on the market, its 16litre engine producing over 3000lb ft pushed the limit of the I shift box as it was..
Its an EV it wont have a gearboxMy ex Volvo FH16 700 was/is one of the most powerful trucks on the market, its 16litre engine producing over 3000lb ft pushed the limit of the I shift box as it was..
A1VDY said:
OK, no gearbox, drive components, drive motor output shaft. Nothing that's going to that relatively small could cope with 11500lb ft..
They are quoting wheel torque not engine torque, your gearbox is a torque multiplier so the rest of the drivetrain will be dealing with similar numbers anyhowRobDickinson said:
A1VDY said:
That torque figure is mistake. There's no gearbox available on this size vehicle that could handle the huge force of 11,500lb ft.
My ex Volvo FH16 700 was/is one of the most powerful trucks on the market, its 16litre engine producing over 3000lb ft pushed the limit of the I shift box as it was..
Its an EV it wont have a gearboxMy ex Volvo FH16 700 was/is one of the most powerful trucks on the market, its 16litre engine producing over 3000lb ft pushed the limit of the I shift box as it was..
They all have gearboxes. They just happen to have 1 gear! (Or two in the case of the Taycan).
Torque figure sounds too high to me...but they maybe quoting torque after the reduction gear?
Assuming 10:1 reduction, then 1000lbft at the motor would be 10000 at the output shaft. 1000lbft fits more nicely with the 1000hp.
I mean do the maths, 11500lbft is about 15500 Nm. Even at 1000rpm on the motor that is over 1.5 MW!! That's 2000hp.
So more than likely it's 1000-1100lbft by the motors and the reduction gear gives you the headline at the wheels. It's not bad like, our truck Dyno would top out at 12000 Nm I think and that was for testing 600hp HGVs.
Edited by Otispunkmeyer on Thursday 30th January 19:46
Otispunkmeyer said:
You are mad.
They all have gearboxes. They just happen to have 1 gear! (Or two in the case of the Taycan).
Torque figure sounds too high to me...but they maybe quoting torque after the reduction gear?
Well yes it'll likely have a reduction gear but that isnt a gearbox really is it. Its easy to build a fixed gear reduction box that;ll cope with this torque and its pretty standard in every ev. They all have gearboxes. They just happen to have 1 gear! (Or two in the case of the Taycan).
Torque figure sounds too high to me...but they maybe quoting torque after the reduction gear?
RobDickinson said:
Otispunkmeyer said:
You are mad.
They all have gearboxes. They just happen to have 1 gear! (Or two in the case of the Taycan).
Torque figure sounds too high to me...but they maybe quoting torque after the reduction gear?
Well yes it'll likely have a reduction gear but that isnt a gearbox really is it. Its easy to build a fixed gear reduction box that;ll cope with this torque and its pretty standard in every ev. They all have gearboxes. They just happen to have 1 gear! (Or two in the case of the Taycan).
Torque figure sounds too high to me...but they maybe quoting torque after the reduction gear?
RobDickinson said:
A1VDY said:
OK, no gearbox, drive components, drive motor output shaft. Nothing that's going to that relatively small could cope with 11500lb ft..
They are quoting wheel torque not engine torque, your gearbox is a torque multiplier so the rest of the drivetrain will be dealing with similar numbers anyhow
And the total claimed power for the Hummer is less than 3 1/2 times the XEs, so given the vastly different torque curves for an EV vs a scroggy little 4-pot turbo, it doesn't seem an implausible number, it just isn't the one we normally see quoted!
I bet 3 second 0-60s eat tyres like they are going out of fashion, though
(edit - got my torque sums wrong the first time
)Edited by Gojira on Thursday 30th January 20:09
RobDickinson said:
Otispunkmeyer said:
You are mad.
They all have gearboxes. They just happen to have 1 gear! (Or two in the case of the Taycan).
Torque figure sounds too high to me...but they maybe quoting torque after the reduction gear?
Well yes it'll likely have a reduction gear but that isnt a gearbox really is it. Its easy to build a fixed gear reduction box that;ll cope with this torque and its pretty standard in every ev. They all have gearboxes. They just happen to have 1 gear! (Or two in the case of the Taycan).
Torque figure sounds too high to me...but they maybe quoting torque after the reduction gear?
I think something that will accept 15000Nm + on its input shaft would be pretty industrial?
The hummer is a horrible vehicle though. Cheap GM crap. Why do they have to persist with such overly big, overly heavy monstrosities? I am of the mind that "because it's EV" doesn't give them a free pass to make hulking goliaths.
Edited by Otispunkmeyer on Thursday 30th January 20:04
A1VDY said:
That torque figure is mistake. There's no gearbox available on this size vehicle that could handle the huge force of 11,500lb ft.
My ex Volvo FH16 700 was/is one of the most powerful trucks on the market, its 16litre engine producing over 3000lb ft pushed the limit of the I shift box as it was.
Id like to see an Ev hummer pull 44t on the limiter up hill at 100kph..
Your Volvo only has 2300lb ft.My ex Volvo FH16 700 was/is one of the most powerful trucks on the market, its 16litre engine producing over 3000lb ft pushed the limit of the I shift box as it was.
Id like to see an Ev hummer pull 44t on the limiter up hill at 100kph..
Edited by A1VDY on Thursday 30th January 19:24
Gassing Station | General Gassing | Top of Page | What's New | My Stuff