2016 Chevrolet Volt Powertrain Details Revealed By General Motors’ Engineers – Video


2016 Chevrolet Volt 1.5-Liter Engine

2016 Chevrolet Volt 1.5-Liter Engine


A pair of General Motors engineers, Peter Savagian and Tim Grewe, discuss in detail some of the aspects of the 2016 Chevrolet Volt powertrain.

Highlights include:

  • Discussion of battery capacity, including comments on useable capacity and range variation in cold weather
  • Reduced weight and complexity of various components
  • Efficiency improvements across the board

And more.

Check out the video above for additional powertrain-related info on the 2016 Volt.

2016 Chevy Volt Batteries Features New Chemistry And A 18.4 kWh Pack

2016 Chevy Volt Batteries Features New Chemistry And A 18.4 kWh Pack

The all-new Voltec drive unit used in the second-generation Chevrolet Volt is 100 lbs. lighter and up to 12 percent more efficient than the previous system.

The all-new Voltec drive unit used in the second-generation Chevrolet Volt is 100 lbs. lighter and up to 12 percent more efficient than the previous system.

Source: AutoblogGreen

Categories: Chevrolet


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58 Comments on "2016 Chevrolet Volt Powertrain Details Revealed By General Motors’ Engineers – Video"

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Is this article missing something? I don’t see a video.

They didn’t really say anything about cold weather performance. How is the variation being reduced?

I thought that was interesting though, for me, only of theoretical interest. When I heard it I did think of you.

This Tim Grewe vidio may help explain why GM doesn’t sell more Volts. The Volt is trying to be the smartest car on the road — and it might just be the smartest. That may explain why those who own them love them.

However, convincing people the car is the smartest is a difficult task. Talking about how “the jigsaw puzzle fits together” does not seem to help. Talking about more efficient inverters, a two motor solution, less mass, a different gear ratio, and a wider spread ratio is just not going to motive someone to buy the Volt. It makes the car sound complicated.

The Volt 2.0 may prove to be a difficult vehicle to sell even with its improvements over the original Volt. It is hard to sell something based on the claim that it is the best solution available.

I think this is a video for gearheads who care. They’re also trying to push a simpler message with the hipster video as well as the convenience of home refueling (i.e. >1000 miles between fillups).

The thing is, I am an engineer, and if he made specific car to car comparisons with the Volt 2.0, I would be interested. Compare the Volt 2.0 to ‘another leading hybrid’ or to ‘another same size ICE’, and he could have something to say which might actually sell the Volt over the alternative. As it is, he is saying to just trust GM to make all the right decisions for the driver. Just trust GM to get it right is not enough.

Well yes, he should have chosen his wording more carefully. He could have said integrating components for optimum efficiency and power, for instance, in place of putting a jigsaw puzzle together. Boring, technical, jargon is often better than using colorful descriptive prose.

GM is using a similar technique as Tesla’s dual motor AWD to improve efficiency while maintaining performance. They are just doing it all on the same drive axle.

This it pointing towards a transmission-less future. There will still be gears, but just no switching gears. Each motor gets its own single reduction gear.

I think of “more than one” gear ratio as equating to a transmission. To that definition, Tesla D’s now have a transmission (going from rear motor, to front).

The volt goes one better, in this regard, in that it can disengage any of its motors, thru clutches. Less rotating mass = better efficiency.

My euro car history still dwarfs the ‘Merican stuff, but I’m a believer in GM’s ability to produce premier transmissions. The euro dual dry-clutch units are some rough stones.

No. Tesla’s “Torque Sleep” takes cate of any inefficiencies, and one-ups over GM– stuck using a single drive shaft.

I don’t necessarily call one is better than the other. I think both of them are the same. Basically decouple the motor NOT needed for efficiency.

As far as superiority of AWD over FWD goes, that is common knowledge, but in the world of engineering, nothing is “free”. It cost more and adds more weight…

Another fact I forgot to mention is that Volt motor speed can be modulated for max efficiency with the split power input design with planetary gearset where the Tesla’s motor efficiency can’t be moved much sincd it is a single speed gear box.

Voltec design allows more varying ratio for potentially highest efficiency at all speeds. Tesla’s design is better for simplicity…

Just another little Public Relation propaganda brick to make us accept as a true miracle a small improvement of the same recipe that use poisonous and GHG generating gasoline.

All this announcement of the Gen2 wants to make us forget that GM stopped actively selling Gen1 six months ago.It will be nearly one full year of excuses NOT TO PUSH the Volt’s sales.

Wake up! The Volt 1 is a hybrid with only 40 miles electric range and it is technologically already almost 10 years old.

So GM has created propaganda to convince us the Volt is a miracle, but they don’t want to sell it? Not following.

It’s easy.

GM article? Lustuccc will set us straight.

“us” is people aware of EVs.
The auto-petro cartel always makes mediatical propaganda thru websites magazines TV etc. Their lobbies are the most powerful of all and they want to kill ereal electrics for good with just enough hybrids to keep “us” quiet.

But surely you don’t lump the Volt with other hybrids?

Allowing pure EV travel (even if only 40-50 miles) as an EREV is far different than a typical hybrid.

1. It allows drivers to experience pure EV driving
2. It is a gateway to a pure EV
3. It does not require gas.
4. It helps solve the battery price problem until prices come down

Obviously we can’t and shouldn’t stop here. We should continue to push the AER for these EREVs and PHEVs until the ICE isn’t needed.

But it’s a good bridge to the future

40 miles AER, 20 or 30 is all the same hybrid stuff. GM, Toyota, Ford, etc can do much better… very easily.

What about 300 miles AER and no ICE? What a good way to experience electric drive! 😉

This technology is not a bridge, it’s a brake.
Don’t we have a climate to save?

Right. Climate skeptics only support correction of data when they want to make it support their position (e.g. the Surface Stations project). Scientists just correct the data.

Are you kidding me!
The author (Christopher Boker)of this climate change denial piece is a right-wing nut idiot famous for denying everything that could impact the profits of the corporations whom he serves.
This moron even defended the tobacco and asbestos companies and denies the Theory of Evolution!!


Interesting … your rebuttal exactly matches the techniques described in this video:

Is it possible we are being manipulated?

Some of us are.

The prius owning Volt hater is back spewing more ignorance on the topic he doesn’t have a clue about…

There are on every green car sites many Big Oil and Big Car paid disinformers, sometimes under different names who routinely spread the good words for the ICE industry, and of course always have a little something bad to say about EVs.
It is called mediatic sodt propaganda and corporations spend thousands of millions every year on it. It must be efficient in manipulating the public opinion about EVs.

The exact the same can be said by the other side.

I have seen enough of your Volt bashing to know that you have very little knowledge yet still has plenty of bias.

If you think Volt is a tool to slow down the adoption of EVs, then how come YOU NEVER EVER making a blip about Toyota’s Prius Plugin? or Ford’s energi models?

That just seems that you have a personal agenda against the Volt or GM…

“how come YOU NEVER EVER making a blip about Toyota’s Prius Plugin? or Ford’s energi models?”
I just did 2 hours before you accuse me of ignorance and bias.

By the way, the “other side” has 10000 times less ressources to let know their point of view. The “other side” is ordinary people with knowledges about how the world is dominated by big cartels and mass manipulation as you do(your tiny part).
People who want the truth to come out about how really fake is the green turn of ICE car manufaturers..

this conspiracy stuff is crazy talk. what the Volt does is replace *most* of your gasoline usage (and as the EV range increases, it replaces even more gasoline usage), while allowing you to use gasoline where it is best used: for long distance travel.

because of the long recharge times, even the Tesla Model S is not a better solution for long distance travel. i haven’t read the op-ed that asserts that EVs will make ICEs obsolete because the premise is so ridiculous. the reality of market adoption (and this applies to personal computers) is that people adopt new technologies that perform better than pre-existing technologies *and* fit within *existing* usage norms. the problem with BEVs is that they require customers to adopt to *new* usage norms. unlike EV enthusiasts, most people are not obsessed with the idea of not using gasoline.

PHEVs are better at adopting to existing usage norms; which is why most auto manufacturers (other than Tesla) are focusing their product plans on PHEVs. i don’t consider Nissan to be a serious player if the Leaf is their only planned product offering.

Wouldn’t it be easier to just not build the Volt in the first place? You know, like Fiat-Chrysler, Toyota, Honda, Hyundai-Kia, etc.

Typical LusTrolll post found in every Volt article.

And other websites under different names probably…

Plug in hybrids are clearly better than straight gas burners.

By way of anecdote, I have a friend whose Volt lease is almost up, and they are now considering a LEAF.

The VOLT is gateway technology! Ease people into the unknown.

Wow, talk about accentuating the negative. While I agree that these anouncements kill today’s gen I volt sales. Maybe that isn’t so bad, if the gen II sells well. GM may want to save those tax credits for the gen II. IIRC the gen I volt sold more than any other plug-in in north america. The leaf may pass it before the gen II is released, but you can not say gm didn’t try to sell it in the past.

“Wake up! The Volt 1 is a hybrid with only 40 miles electric range and it is technologically already almost 10 years old”

It’s hilarious that you say this when no other “hybrid” comes close to having that all electric range with the ability to drive further on gas, even 4 years after the original Volt was introduced. Except maybe the BMW i3, but that’s far more expensive.

You’re such a troll.

And you’re such a fool to beleive that there is real competition among ICE car makers about the one technology that might kill them!

And you are the troll who go around tirelessly bashing the Volt.

I guess Prius owners tend to do that since they are so afraid that Volt is superior to your piece of junk.

If you love EVs so much, why don’t you trade in your Prius junk for a LEAF or something?

Seriously? He doesn’t even have an EV and he’s trolling about the Volt like this? So sad.

In response to his hybrid premise, I burned less than 1 tank of gas last year in my Volt (about 9k miles). If I had a Leaf instead, I would have needed to rent a car on several occasions, which would have gotten way less MPG than the Volt in ICE mode. In these circumstances, the Volt can actually save more gas.

You can always bet on 100% that he would comment negatively on any Volt or GM related articles…

It’s competition between car makers, not just between ICE car makers. You’re assuming automakers have a unique affinity for the ICE. They don’t. They (or rather their shareholders) have an affinity for profits. The relatively lower cost of the ICE drivetrain allows them to maximize profits, currently. If GM sees a path to future profitablity through electrification, which apparently they do, they’ll make the necessary investments to have a leadership position.

So the Volt is a “poisonous and GHG generating” vehicle… and we should be mad at GM for not trying harder to sell them?

You should just paste “but how does this make up for the EV1?” into every comment you make on a GM-related article. It would save a lot of time.

“…the same recipe that use poisonous and GHG generating gasoline.”

You’re not supposed to drink it.

There seem to be no end of public relations people at GM with the title of Engineer. I thought Fletcher was “Head Engineer”; now this dude is “Chief Engineer”?

How these people can talk all the time and say precious little is beyond me. Why not take an 8 1/2 x 11″ sheet of paper and explain everything at once?

One thing I am a bit curious about is that the new drive unit seems to operate at a slower speed. It may be an optical illusion but it appears the Morse Chain is a step up where the wheels are turning faster than the gearbox. No?

Tim Grewe is propulsion, whereas Pam Fletcher is CE for all electric vehicles.

I like that there is bifurcation in the EV world The biggest issues facing EVs today 1. Cost of battery 2. Range 3. Performance 4. Customer education Tesla solved this issue by building a very expensive car for the rich. This solves the issue of range and performance, while sacrificing price. The car has done more to educate laypeople to the possibilities of EVs than anything else Nissan solved the problem by making a somewhat affordable EV with decent performance. But sacrificed range. GM solved the problem by adding the ICE as EREV, Solving range, performance, and price. But they had to sacrifice “pure” EV status. They’ve had the most difficulty with their message, and education. I was initially against the Voltec solution. But increasingly I do believe it is an important step on the way to our primarily EV passenger vehicle future, especially seeing the difficulty that the LEAF and MiEV had here in MN last winter. The nice thing is that the Volt and i3 solutions are scalable as battery prices fall. Start with 40 mile range (80 for i3). Then increase to 50, 80, 120, 200… Over time people will realize they aren’t using their ICE and… Read more »

Exactly. Three approaches to the problem. A problem that hasn’t been fully solved by anyone yet, but progress is being made. Volt 2 is an example of that progress.

you left off an important issue: recharge time. if recharge time for BEVs were not an issue then nobody would be looking at FCEVs (no, i do not believe that FCEV research is part of a conspiracy).

Yes. Recharging time is actually the number 1 issue. Costs are being addressed, but recharging time is important because it’s a big determining factor in whether EV ownership can scale well. More range is important significantly to reduce the number of miles of charging needed on public chargers (under 3% for us, I’ve estimated), and then you want fast charging to raise the miles possible per charger.

(That’s under 3% if we had a 200 mile BEV as our primary car).

… and this is why the continuing installation of 44kW to 62.5kW DC chargers is really not helping.

An alternative approach is GM’s approach (look, vaguely on-topic) which is to build a EREV-ish PHEV that provides a significant percentage of EV miles. If you get the EV range high enough you might get a high enough perentage that you could shift the range extender over to ethanol.

Just call it a ” Prius Killer” and be done with it. Most people can grasp that…

Most “people” would just say BS, Volt only get 40mpg while Prius gets 50mpg…

That is the problem here…

That Volt criticism would be very easy to deflect with proper marketing. Not sure if that will ever happen though.

there is a point at which it is more efficient to buy a Prius than a Volt. for example, if you are operating a taxi, in which you are going to be driving hundreds of miles per day with limited opportunities for recharging, then the Prius is probably a better bet.

the Volt is oriented around the premise that the battery will displace *most* of your gasoline driving. there are driving scenarios where that is not going to be true.

Volt gets 93 mpge, 37 mpg on gas, and the EPA says 60 mpg composite

A simple marketing campaign should be able to put that to rest.

does anyone know whether the Gen2 Volt will continue to use the engine running due to temperature mode?

GM says that ERDTT exists because of the defrost test. However, it has been stated that they’ve increased the power of the resistive heating in the 2016 so they may have been able to lower the ERDTT temperature again.

I’d love to avoid it, since we live in central Maine and we have lots of commutes and short trips each year where ERDTT affects us in our 2013. But given a choice the priority would be to have a climate control system that doesn’t suck in cold weather.

For Australia with our generally mild climate
it should be A/C reverse cycle heating!
I’m so ticked off with the inefficient resistive heating I prefer to drive cold LOL!
(But there are days I need to defrost the windscreen and heating and at same cooling is another issue that needs addressing).

I do like the increase in performance, but the more I see of Volt 2 design wise.

The greater I appreciate the iconic good design looks of Volt 1.
So much so that if something ever happened to my beloved Volt 1, I would definitely not be purchasing a Volt 2.
I hope by then Tesla or Mercedes locally will have something that will be better both in spec and definitely looks.