DavidBurbidge
Posts: 2
Joined: Mon Jun 15, 2020 7:19 pm
Delivery Date: 05 Jun 2020
Leaf Number: 321718

Use of e pedal and smoothness of ride

Wed Jun 17, 2020 6:51 am

Hello,

I am new to my 2019 LEAF and new to the forum. I love them both!

I love the e pedal but think it makes the overall ride more bumpy. I think it the torque in the wheels as you drive and/or ease up on the accelerator causes the weight of the vehicle to push towards the front and causes the car to hit the bumps harder. I compare it to biking. When I hold on to my handlebars tightly and harden my muscles, the bumps reverberate more through my body. If I loosen my arms and muscles, the vibrations are absorbed better.

The free flowing coasting feel of the regular pedal seems smoother.

I would love to hear from anyone with a more scientific description to prove or disprove my thoughts. Thanks.

DavidBurbidge

LeftieBiker
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Re: Use of e pedal and smoothness of ride

Wed Jun 17, 2020 1:09 pm

I think it the torque in the wheels as you drive and/or ease up on the accelerator causes the weight of the vehicle to push towards the front and causes the car to hit the bumps harder.
This is likely what you are experiencing. You can moderate the regenerative braking strength in ePedal mode by backing off the accelerator pedal more gently and slowly, keeping more of the car's weight evenly distributed.
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DougWantsALeaf
Posts: 1784
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Leaf Number: 407811
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Re: Use of e pedal and smoothness of ride

Wed Jun 17, 2020 1:25 pm

I agree with Leftie.

I didn't use ePedal for the first 9 months I had the car. With a little practice, you can make the driving experience very smooth. Its only useful in local driving, never really useful on the highway, unless in a traffic jam. My data is anecdotal, but I do feel like I get a little better efficiency using ePedal when doing local driving. I don't know if its because I get modestly better regen.
2019 S Plus (98.6% SOH) & 2019 SV Plus (94.6% SOH) Both Silver
2013 Leaf SV sold 2019
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Max Miles on 13 Leaf: 120 miles
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henrydehoja
Posts: 83
Joined: Sun Sep 16, 2018 6:40 pm
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Leaf Number: 317129
Location: Metro Boston, MA

Re: Use of e pedal and smoothness of ride

Sat Aug 01, 2020 4:26 pm

It's pretty much what Leftie said.

The e-pedal driving takes some getting used to and is not something one will typically learn to control easily. Keep at it and you will learn to get smooth rides over bumps and other road obstacles.

I use the e-pedal all the time and feel that I have a good grasp of it at this point for smooth driving & stopping.
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DougWantsALeaf
Posts: 1784
Joined: Fri May 10, 2013 8:21 pm
Delivery Date: 18 May 2013
Leaf Number: 407811
Location: Chicago North Side

Re: Use of e pedal and smoothness of ride

Sat Aug 01, 2020 4:45 pm

I am an ePedal convert. I use it on nearly all local trips now.
2019 S Plus (98.6% SOH) & 2019 SV Plus (94.6% SOH) Both Silver
2013 Leaf SV sold 2019
100 Mile Club Member (Number 87)
Max Miles on 13 Leaf: 120 miles
Max Miles on 19 SV Leaf: 242 Highway 4.5 miles/kWh

DaveinOlyWA
Posts: 14878
Joined: Sat Apr 24, 2010 7:43 pm
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Leaf Number: 319862
Location: Olympia, WA
Contact: Website

Re: Use of e pedal and smoothness of ride

Sun Aug 02, 2020 6:51 am

E pedal is a tool and there is a right and wrong way to use any tool and E pedal is no exception. I used it exclusively for a while then switched to only using it for major deceleration events or when coming to a stop with the goal of not using the brake pedal at all.

When looking at all the drive modes, E pedal allows the full range of motion based on how much you ease off the acceleration. It is not for the jumpy person. It does provide very fine speed control and acts like any very low gear in a normal car.

I tested E pedal on my 40 and 62 kwh LEAF and it does provide a much higher level of regen (50-60% more than B mode depending on speed) so it is beneficial in that;

it regains more of the power used to attain your speed of travel

Is easy to engage.

But also higher levels of regen means a bigger hit to the pack. Now how much bigger? Hard to say but I will tell you that I have seen much higher regen levels than you would see at a charger when SOC was well above the charging curve. Considering the very short duration of the E pedal events, I figure there is an effect but low on the priority poll of concern
2011 SL; 44,598 mi, 87% SOH. 2013 S; 44,840 mi, 91% SOH. 2016 S30; 29,413 mi, 99% SOH. 2018 S; 25,185 mi, SOH 92.23%. 2019 S Plus; 11,333.1 mi, 93.73% SOH
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DougWantsALeaf
Posts: 1784
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Location: Chicago North Side

Re: Use of e pedal and smoothness of ride

Sun Aug 02, 2020 11:42 am

Agreed, I have seen some hard freeway deceleration cycles (say 75mph to 5mph on a decline) regen and add a whole degree C to the pack in 30 seconds...so maybe the fastest way to charge is to have the leaf towed in B/ePedal mode.
2019 S Plus (98.6% SOH) & 2019 SV Plus (94.6% SOH) Both Silver
2013 Leaf SV sold 2019
100 Mile Club Member (Number 87)
Max Miles on 13 Leaf: 120 miles
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webeleafowners
Posts: 1107
Joined: Mon Oct 05, 2015 5:37 pm
Delivery Date: 06 Oct 2015
Location: Okanagan Valley British Columbia

Re: Use of e pedal and smoothness of ride

Mon Aug 03, 2020 6:52 am

DougWantsALeaf wrote:
Sun Aug 02, 2020 11:42 am
Agreed, I have seen some hard freeway deceleration cycles (say 75mph to 5mph on a decline) regen and add a whole degree C to the pack in 30 seconds...so maybe the fastest way to charge is to have the leaf towed in B/ePedal mode.
It’s funny you say that Doug. We are motorhomers. Although we have tended to pull a car on a trailer behind us, many motorhomers like to pull their vehicles “4 down”. Lots of discussion in the RV forums on how to pull an EV and have it charged when you arrive at your destination. :). Sooner or later someone will try it. It won’t be us. :).

Our introduction to Epedal was when we were ordering a 2020 Leaf SL plus. We were thoroughly impressed. IMHO the Epedal on the leaf and model 3 feel very similar with the leaf maybe having a little gentler stop than the 3.
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DougWantsALeaf
Posts: 1784
Joined: Fri May 10, 2013 8:21 pm
Delivery Date: 18 May 2013
Leaf Number: 407811
Location: Chicago North Side

Re: Use of e pedal and smoothness of ride

Mon Aug 03, 2020 7:06 am

Yeah, compliment to the Leaf that M3 added the feature in the last year.

Engineering Explained towed a M3 with a Ford Raptor. It was pretty funny and showed how a small hit in mpg, the M3 was able to travel quite far.
2019 S Plus (98.6% SOH) & 2019 SV Plus (94.6% SOH) Both Silver
2013 Leaf SV sold 2019
100 Mile Club Member (Number 87)
Max Miles on 13 Leaf: 120 miles
Max Miles on 19 SV Leaf: 242 Highway 4.5 miles/kWh

DaveinOlyWA
Posts: 14878
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 16 Nov 2019
Leaf Number: 319862
Location: Olympia, WA
Contact: Website

Re: Use of e pedal and smoothness of ride

Mon Aug 03, 2020 7:18 am

webeleafowners wrote:
Mon Aug 03, 2020 6:52 am
DougWantsALeaf wrote:
Sun Aug 02, 2020 11:42 am
Agreed, I have seen some hard freeway deceleration cycles (say 75mph to 5mph on a decline) regen and add a whole degree C to the pack in 30 seconds...so maybe the fastest way to charge is to have the leaf towed in B/ePedal mode.
It’s funny you say that Doug. We are motorhomers. Although we have tended to pull a car on a trailer behind us, many motorhomers like to pull their vehicles “4 down”. Lots of discussion in the RV forums on how to pull an EV and have it charged when you arrive at your destination. :). Sooner or later someone will try it. It won’t be us. :).

Our introduction to Epedal was when we were ordering a 2020 Leaf SL plus. We were thoroughly impressed. IMHO the Epedal on the leaf and model 3 feel very similar with the leaf maybe having a little gentler stop than the 3.
The problem with that is you are force charging against the BMS which will lead to disastrous results. I can also imagine the drag on the motorhome's engine is something you will not want to deal with either.
2011 SL; 44,598 mi, 87% SOH. 2013 S; 44,840 mi, 91% SOH. 2016 S30; 29,413 mi, 99% SOH. 2018 S; 25,185 mi, SOH 92.23%. 2019 S Plus; 11,333.1 mi, 93.73% SOH
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