ddh1313
Posts: 18
Joined: Thu Jun 15, 2017 6:58 am
Delivery Date: 15 Jun 2017

Virtual Transmission

Thu Jan 03, 2019 7:25 pm

Just for fun. How do you feel about having a virtual set of gears to shift/paddle your way through in an EV?

Here's my thoughts:

The virtual transmission would use a combination of Motor RPM, Power Output and Regen Levels to simulate gears and (this is where it might go off the rails) the torque curve of a naturally aspirated ICE.

So for example :

1st Gear (V1 displayed on the dash cluster if your particular EV happens to include one) is responsible for say 0 - 35mph . With your foot on the floor, the motor controller creates a fake power curve that exhausts near the end of the virtual gear or as the vehicle approaches 35mph and it's pretend redline/rev limiter. Having perceived you are running out of fake power, you shift or paddle into V2.

2st Gear V2 sends full (ramped) power back to the motor and it pulls until nearing 60mph as the power virtually exhausts yet again. You can do this through any number of artificial gears sliced out of the true spectrum of the EV drivetrain.

Downshifts:

A downshift will produce max regen at the top of the virtual gears speed/rpm range and will diminish as it decelerates to the lower end to simulate engine breaking. A downshift outside of the virtual gear range will produce an error tone just like automatics with a sport shift feature do.

Obviously this serves NO purpose for efficiency or max performance and would actually hurt both but I think it would be entertaining if implemented well.

WetEV
Posts: 3059
Joined: Fri May 04, 2012 8:25 am
Delivery Date: 16 Feb 2014
Location: Near Seattle, WA

Re: Virtual Transmission

Tue Jan 22, 2019 10:23 am

ddh1313 wrote:Just for fun. How do you feel about having a virtual set of gears to shift/paddle your way through in an EV?
About like people that pipe in simulated motor noise to the speakers from some different car. Drive a Civic, pipe in noise from a Maserati. Drive a Jetta, pipe in noise from a Porsche 911. Drive some sad old Fiat that can't get out of it's own way, pipe in noise from a Lamborghini Huracán LP 640-4 Performante. Oh yea.
WetEV
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SanCarlosJeff
Posts: 13
Joined: Tue Sep 25, 2018 10:14 am
Delivery Date: 24 Sep 2018
Leaf Number: 302391
Location: Northern CA

Re: Virtual Transmission

Tue Jan 22, 2019 4:44 pm

For me it would be entertaining for about an hour and then never used again. Kind of like the manual feature of the Tiptronic transmission on my old Audi.
-Jeff
Prius: 2005-2012
Volt: 2012-2018
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Nubo
Posts: 5363
Joined: Fri May 28, 2010 11:01 am
Delivery Date: 31 Oct 2014
Location: Vallejo, CA

Re: Virtual Transmission

Wed Jan 23, 2019 1:46 am

I have come to love the single-ratio aspect of electric driving, and every car I ever bought prior to LEAF was manual transmission. Unless you consider the VW "auto stick" to not be :roll: . Form follows function. I hate fakery such as fake grilles, fake wheel covers, and fake "floating roofs". Fake gear-shifting holds no appeal for me at all.
I noticed you're still working with polymers.

LeftieBiker
Moderator
Posts: 13024
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 30 Apr 2018
Location: Upstate New York, US

Re: Virtual Transmission

Wed Jan 23, 2019 4:15 am

I find that "shifting" to B mode and back is plenty of action for me, and my main car for 23 years was a Civic Si.
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sunpraiser084
Posts: 9
Joined: Mon Feb 11, 2019 3:05 am
Delivery Date: 15 Sep 1982

Re: Virtual Transmission

Wed Feb 13, 2019 9:48 pm

I don't like having one in my car. It's a waste of time.

smkettner
Posts: 7373
Joined: Mon Aug 09, 2010 10:13 pm
Delivery Date: 26 Feb 2014
Location: Orange County, CA

Re: Virtual Transmission

Wed Feb 13, 2019 9:50 pm

No.
1 bar lost at 21,451 miles, 16 months.
2 bar lost at 35,339 miles, 25 months.
LEAF traded at 45,400 miles for a RAV4-EV
RAV4 traded in for I-Pace Dec 2018

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