MrNicG
Posts: 6
Joined: Tue Aug 28, 2018 8:04 am
Delivery Date: 10 Jul 2018
Leaf Number: 018835

Make a switch to force a low speed governor?

Thu Dec 06, 2018 11:33 am

I'd like a switch or something to force the car into what I would consider a "golf cart mode". I like to cruise around my subdivision in the evening and I find it hard to keep a steady speed under 20MPH. (I like to cruise at about 12MPH). What I'd like to do is somehow govern the speed to a limit of around 25MPH.
I figure there are a few possible ways to do this:
Force tortoise mode.
Selectable restriction on throttle cable.
Some way to lower the minimum speed for cruise control.
Maybe a potentiometer on a specific wire.

Any input or other ideas would be great.
Last edited by MrNicG on Thu Dec 06, 2018 12:22 pm, edited 1 time in total.

MrNicG
Posts: 6
Joined: Tue Aug 28, 2018 8:04 am
Delivery Date: 10 Jul 2018
Leaf Number: 018835

Re: Make a switch to force a low speed governor?

Thu Dec 06, 2018 11:35 am

This may be relevant, lol:

2012 Leaf SL

BrockWI
Posts: 699
Joined: Fri Mar 28, 2014 6:28 am
Delivery Date: 28 Mar 2014
Leaf Number: 423875
Location: Green Bay, WI.
Contact: Website

Re: Make a switch to force a low speed governor?

Thu Dec 06, 2018 12:31 pm

I have often wondered if you could force the car in to "turtle mode" without it being caused by a low battery situation.

Or sort of like "chill" mode on a Tesla?
3 kw solar pv - XW6048 - eight L16's
4 ton GSHP
2003 VW TDI 180k miles - 52 mpg lifetime
evse level 2 - Clipper Creek HSC-40
2013 S model with QC package Mar of 2013
@70k miles - 56.56Ahr - 86 SOH - 82.55 Hx - 245 GID

LeftieBiker
Posts: 9824
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 30 Apr 2018
Location: Upstate New York, US

Re: Make a switch to force a low speed governor?

Thu Dec 06, 2018 3:46 pm

What is needed isn't a speed limiter, but a pedal input remapper. Leaf Box could probably be programmed to stretch just a little input over most of the pedal travel. The other approach would be to find a way to activate cruise control below the current floor...which is 25MPH?
Scarlet Ember 2018 Leaf SL W/ Pro Pilot
2009 Vectrix VX-1 W/18 Leaf modules, & 3 EZIP E-bicycles.
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

BrockWI
Posts: 699
Joined: Fri Mar 28, 2014 6:28 am
Delivery Date: 28 Mar 2014
Leaf Number: 423875
Location: Green Bay, WI.
Contact: Website

Re: Make a switch to force a low speed governor?

Thu Dec 06, 2018 4:03 pm

I like the Leaf Box idea becasue if you really needed it all the way down could still give you full power if needed.
3 kw solar pv - XW6048 - eight L16's
4 ton GSHP
2003 VW TDI 180k miles - 52 mpg lifetime
evse level 2 - Clipper Creek HSC-40
2013 S model with QC package Mar of 2013
@70k miles - 56.56Ahr - 86 SOH - 82.55 Hx - 245 GID

LeftieBiker
Posts: 9824
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 30 Apr 2018
Location: Upstate New York, US

Re: Make a switch to force a low speed governor?

Thu Dec 06, 2018 4:05 pm

BrockWI wrote:I like the Leaf Box idea becasue if you really needed it all the way down could still give you full power if needed.


Yup. It's an unspoken rule that reduced power modes should still offer full power if you floor it.
Scarlet Ember 2018 Leaf SL W/ Pro Pilot
2009 Vectrix VX-1 W/18 Leaf modules, & 3 EZIP E-bicycles.
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

User avatar
Nubo
Posts: 4942
Joined: Fri May 28, 2010 11:01 am
Delivery Date: 31 Oct 2014
Location: Vallejo, CA

Re: Make a switch to force a low speed governor?

Thu Dec 06, 2018 6:20 pm

MrNicG wrote:I'd like a switch or something to force the car into what I would consider a "golf cart mode". I like to cruise around my subdivision in the evening and I find it hard to keep a steady speed under 20MPH.


Have you tried the vehicle's Eco mode?

Like you, I find the default throttle-map is too herky-jerky in low-speed situations, but Eco flattens out the torque curve to where I'm comfortable. I use Eco almost exclusively, only dropping out of it when I really need max heating or cooling (unfortunately, Eco nerfs the HVAC to about 50% of its maximum capacity).
I noticed you're still working with polymers.

pipestem
Posts: 43
Joined: Tue Sep 26, 2017 6:03 pm
Delivery Date: 23 Sep 2017
Leaf Number: 327753
Location: North Carolina

Re: Make a switch to force a low speed governor?

Fri Dec 07, 2018 3:23 pm

put a brick under the 'gas' pedal ?
2015 Leaf S. Red. 34K+ miles.

GerryAZ
Gold Member
Posts: 1871
Joined: Mon Nov 22, 2010 6:47 pm
Delivery Date: 12 Jun 2011
Location: Phoenix, AZ

Re: Make a switch to force a low speed governor?

Sat Dec 08, 2018 11:11 pm

Nubo wrote:
MrNicG wrote:I'd like a switch or something to force the car into what I would consider a "golf cart mode". I like to cruise around my subdivision in the evening and I find it hard to keep a steady speed under 20MPH.


Have you tried the vehicle's Eco mode?

Like you, I find the default throttle-map is too herky-jerky in low-speed situations, but Eco flattens out the torque curve to where I'm comfortable. I use Eco almost exclusively, only dropping out of it when I really need max heating or cooling (unfortunately, Eco nerfs the HVAC to about 50% of its maximum capacity).


Nubo,

Thanks for this suggestion! I have been using D-mode (or B-mode on 2015) because it is closer to the accelerator pedal response of other vehicles I drive (and does not interfere with HVAC). I use cruise control on neighborhood streets to avoid the jerkiness, but that does not work for 15 mi/hr school zones. I switched to ECO mode (just touch a button on the steering wheel on 2015) as I approached a school zone after reading your post and was pleasantly surprised at how much easier it was to drive smoothly at low speed. Now I just touch the ECO button when I approach a school zone (while still on cruise control), disengage cruise control to slow down, drive smoothly through school zone, accelerate, engage cruise control, and touch button to return to B-mode.
Gerry
Silver LEAF 2011 SL rear ended (totaled) by in-attentive driver 1/4/2015 at 50,422 miles
Silver LEAF 2015 SL purchased 2/7/2015

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