janvanhoudt
Posts: 1
Joined: Thu Apr 27, 2017 11:10 am
Delivery Date: 01 Apr 2017

cruise control energy usage

Thu Apr 27, 2017 11:19 am

Hi All,

I am a proud owner of a Nissan Leaf since about a month and I am very pleased with the car!

One thing I noticed though, is that setting cruise control to a fixed speed (say 70km/h) seems to use more energy than manually driving at that constant speed (used energy meter loses a few stripes when driving with cruise control).

Is this normal? I would expect the cruise control to be able to drive more efficient than myself?

LeftieBiker
Posts: 6436
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 31 May 2013
Location: Upstate New York, US

Re: cruise control energy usage

Thu Apr 27, 2017 12:03 pm

Cruise can be more efficient on level highway, but in most other conditions it uses more power, because it won't let the car slow more than 1-2MPH on uphills, and it accelerates the car faster than a mindful driver.
2013 "Brilliant Silver" SV with Premium Package and no QC, and 2009 Vectrix VX-1 with 18 Leaf cells.

The most offensive, tasteless phrase in use here is "Pulled the trigger." I no longer respond to posts that use it.

jjeff
Posts: 1352
Joined: Wed Jan 13, 2016 9:10 am
Delivery Date: 13 Jul 2014
Leaf Number: 422121
Location: MSP MN

Re: cruise control energy usage

Thu Apr 27, 2017 12:51 pm

Thats one reason I don't care that my S Leaf doesn't have cruise. As Leftie said when going up a hill cruise will literally FLOOR the car trying to maintain speed, something that you might not do if driving with the pedal. On a flat road cruise can help if you tend to speed, keeping you at an overall lower speed that you might if driving by pedal but if your good at not speeding and let the car slow down a bit on uphills, your better driving by foot.
2012 SL purchased used 2/'16
2013 S w/QC purchased new
Juicebox Premium 60a L1/L2 EVSE, Ebusbar 16a L1/L2 EVSE
'12 EVSEupgrade'd 20a L1/L2 EVSE, '13 EVSEupgrade'd adjustable 6-20a L2, 6-13a L1 EVSE
Zencar 13, 20, 30a L1/L2 portable EVSE
GE Durastation 30a

mihird
Posts: 154
Joined: Thu Dec 12, 2013 9:48 pm
Delivery Date: 08 Mar 2013
Location: East Bay CA

Re: cruise control energy usage

Thu Apr 27, 2017 5:04 pm

LeftieBiker wrote:Cruise can be more efficient on level highway, but in most other conditions it uses more power, because it won't let the car slow more than 1-2MPH on uphills, and it accelerates the car faster than a mindful driver.


Nissan should tweak the Cruise Control software with energy efficiency in mind....accelerate the car a bit slower like a mindful driver...let the car slow down a bit more like 2-5mph on uphills.

Cruise Control can be programmed to have 2 behaviors...ECO mode..non-ECO mode tied right with the ECO button..

Yes, Cruise Control on a typical drive in a Leaf ends up consuming more energy than manual mindful driving...
1st Leaf : 2013 SV (2013-2016)
2nd Leaf : 2016 SV (2016-?)
3rd Leaf : 2015 SV (2016-?)

VitaminJ
Posts: 352
Joined: Tue Jan 03, 2017 11:46 am
Delivery Date: 07 Jan 2017
Leaf Number: 415775
Location: Morrison, CO
Contact: YouTube

Re: cruise control energy usage

Fri Apr 28, 2017 8:26 am

A mindful driver + cruise control will result in even better efficiency!
2013 Ocean Blue SV w/ QC and LED

PM me about converting your 120v EVSE to 240v

jjeff
Posts: 1352
Joined: Wed Jan 13, 2016 9:10 am
Delivery Date: 13 Jul 2014
Leaf Number: 422121
Location: MSP MN

Re: cruise control energy usage

Fri Apr 28, 2017 1:55 pm

VitaminJ wrote:A mindful driver + cruise control will result in even better efficiency!

True, when I've used cruise in the past I'd generally cancel the cruise and speed up a little before a larger hill then gradually lose speed as I ascend and finally at the top of the hill resume the cruise. I'd also leave cruise on for descents where I might tend to speed, that is unless a big hill is coming right up in which again I'd gain speed going into the next ascent and gradually lose it again.
Personally, I'd LOVE a programmable or smart cruise where you could program in things like maximum power, accept if speed drops below a particular value, at which time the motor could give more power and possibly if the car dropped below say the minimum speed limit the car could give full motor power. When I hear the term "adaptive cruise control" I think of my wish but I believe thats just to slow the car down if it gets too near the car ahead of you, not what I'd want :(
2012 SL purchased used 2/'16
2013 S w/QC purchased new
Juicebox Premium 60a L1/L2 EVSE, Ebusbar 16a L1/L2 EVSE
'12 EVSEupgrade'd 20a L1/L2 EVSE, '13 EVSEupgrade'd adjustable 6-20a L2, 6-13a L1 EVSE
Zencar 13, 20, 30a L1/L2 portable EVSE
GE Durastation 30a

LeftieBiker
Posts: 6436
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 31 May 2013
Location: Upstate New York, US

Re: cruise control energy usage

Fri Apr 28, 2017 2:00 pm

VitaminJ wrote:A mindful driver + cruise control will result in even better efficiency!


Yes. I use cruise religiously, but when I'm economizing I switch it on and off as needed.
2013 "Brilliant Silver" SV with Premium Package and no QC, and 2009 Vectrix VX-1 with 18 Leaf cells.

The most offensive, tasteless phrase in use here is "Pulled the trigger." I no longer respond to posts that use it.

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