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What is eTorque?

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etorque
11K views 16 replies 9 participants last post by  Old Dogger  
#1 ·
There appears to be a lot of misunderstanding about what eTorque is, and misinformation about what it does.

FCA has done a terrible job explaining and marketing eTorque. Let’s face it, in the absence of understanding, the Internet is filling the blanks, often erroneously.

Found this on another Wrangler forum.

Basically, eTorque provides six functions:
  1. Stop-Start: Unlike ESS, which uses the abrupt starter, eTorque uses a 48V battery and belt-starter generator to re-start the engine within 400 milliseconds.
  2. eRoll Assist: when starting to move, eTorque gives the first half tire rotation a "push" down at inefficient low engine revs to get the vehicle moving.
  3. Upshift Rev Matching: when the engine needs to upshift, eTorque scrubs off engine speed to rev match for a smooth shift, and stores that energy in the 48V battery instead of using the transmission clutches to scrub off that speed.
  4. Electronic System power: the 48V battery is used to power the vehicle electrical loads so that the engine doesn't have to cope with the parasitic loss.
  5. Downshift Rev Matching: eTorque accelerates the engine for smooth shifts instead of using extra fuel.
  6. Regenerative Braking: under coasting or normal braking conditions, eTorque puts a load on the engine and uses the BSG to store energy that would normally have to be absorbed by the brake pads.
Personally, I am all for getting rid of the silly auxiliary battery. Seems like eTorque does that and a lot more.

This YouTuber has a Chrysler engineer explain eTorque on a Ram pickup, but the system on Wranglers is the same.

PS - The engineer does a great job of illustrating how much gasoline a 5.7HEMI burns at a 90-second stop.
 
#3 ·
I'm looking at ordering another new Wrangler as soon as things get back to normal at both the dealerships and the Jeep assembly lines. I've been doing the online Price and Build thing and have pretty much decided to go with the 6spd. standard trans over the automatic trans, now this is what I want, so all is good. But if you want the V6 with automatic trans it become a $3700 upgrade as you have to buy the eTorque engine upgrade to get the 8spd automatic, or go with the 2.0 engine and with automatic it will cost you $1500 for the automatic upgrade. All being said, why are you forced to have to take the V6 eTorque engine just to get the 8spd automatic trans, or forced to take the 2.0 engine. Another thing I don't like is the dual battery salutation, lets face it in 3-4 years you are probably going to have to replace them, just double expense. I intend to keep my Wrangler for 5-6 years and I can tell you that on resale if Jeeps hold there value as they have in the past the value of a 6sp standard will be very little difference between it and an automatic, yes it might take a little longer to sell, but you value is still there. Jeep has you over a barrel on this one. you either pay the $3700 to get the V6, or settle for the 2.0 and it's $1500 if you want an automatic trans.

trainman
 
#4 ·
This is all Fed driven, for fuel economy. The sad part is, we have to pay for it, in up front costs, maintenance and good luck in ever getting ones money back on fuel savings.
 
#7 ·
I personally don't care too much about fuel economy as I feel the Wranglers get ok for what they are. My answer for the time being is to go a with a 6 spd manual trans and I'm ok with it, I'm old school and it saves me $3700 up front.

trainman
 
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#5 ·
I already had to replace the auxiliary battery. It is not only a pain in the butt to replace, but it barely lasted 18 months, and caused all sorts of electrical gremlins on its way out. Hopefully the auxiliary battery I got at O’reilly’s lasts longer than the one that came from the factory.

Next time I will happily pay for eTorque so that I don’t have to deal with that silly battery. And I’ll take eTorque’s smoother engine starts and transmission shifting as added benefits.

FCA should have positioned eTorque as a technological improvement like, say, cylinder deactivation, instead of as a separate powertrain “option." It would have resulted in much less market confusion and misplaced mistrust. But with typical FCA greed, it felt that offering as an option would allow them to gouge customers.
 
#11 ·
FCA should have positioned eTorque as a technological improvement like, say, cylinder deactivation, instead of as a separate powertrain “option."
Another way of looking at it is they were trying to offer a choice to hardcore jeepers who ride rough trails and keep their new jeeps for 20 years.

E-torque sounds great for an on-road vehicle that's going to be traded in when the 8-year hybrid battery warranty expires. However, I don't want it because I'm in the rough trails and keeps new vehicles for 20 years camp.
 
#9 ·
It is difficult to justify paying extra to save money. The fuel economy gains would need to be huge, like in the case of Prius, to offset the added costs the technology. That type of economy gain is clearly not a primary objective for an off-road vehicle like Wrangler.

IMO, the key benefits eTorque provides is that it (a) it smoothens ESS re-start, up-shinfting and down-shifting operation, and (b) does away with the auxiliary battery.
 
#14 ·
I saw this video this morning and they pretty much explained the value of eTorque, it will be 2-3 minuets into the video.

trainman
 
#15 ·
Aldo my friend, what a Great explanation! Thank’s for putting this out to the Group… Hopefully everyone will get the point between the “two” ess systems. E Torque on my 2021 Willys picked up last November is running fine, it does take some getting used to regardless which ess system you get, but the E Torque on the 3.6 and 8 speed Auto is sweet! Honest, I never disabled it because it really doesn’t bother me and is pretty smooth on the re- starts, not like the ones using the starter to re-start.