kolmstead
Posts: 479
Joined: Mon Aug 09, 2010 9:07 pm
Delivery Date: 15 Jan 2011
Leaf Number: 000257
Location: Ridgecrest, California (100 miles east of Bakersfield)

Wind affects LEAF

Fri Feb 25, 2011 5:55 pm

High winds here today; probably 25 mph tailwind as I drove to work, and closer to 35 mph headwind on the way home. LEAF doesn't like wind.

1. 5.3 miles per kWh on the way to work; 3.5 miles per kWh on the way home. Same speed, cruise control on, ECO off, heater on.

2. Wind noise; there's always some from the side windows, but it gets a lot worse when it's windy. I suspect the windows flex outward a bit, creating gaps.

3. Wind pushes the car around more than I expected. I had to make noticeable corrections after each gust from the side. The penalty for being a tall vehicle, I guess.

The good news? No blowing sand today. I'm dreading my first encounter; it pits the windshield like crazy.

-Karl

gascant
Posts: 921
Joined: Tue Nov 23, 2010 4:09 pm
Delivery Date: 13 May 2011
Leaf Number: 2209
Location: San Jose, CA

Re: Wind affects LEAF

Fri Feb 25, 2011 8:58 pm

My Prius gets pushed around, too. About the same weight as the LEAF. Not nearly as much fun to drive (based on my total of 7 minutes driving a LEAF). My last car was a '97 Acura integra that weighed only 2200 lbs. It REALLY got blown around.
2011 LEAF SL brilliant silver + QC
DRL's, Seat Heaters, Horn, LEDs and EVSE upgrades
Over 24,300 miles gas-free
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DaveinOlyWA
Posts: 14204
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 16 Nov 2019
Leaf Number: 319862
Location: Olympia, WA
Contact: Website

Re: Wind affects LEAF

Sat Feb 26, 2011 6:54 am

wind affects every car but should affect Leaf about the same as Prius. both have high profiles but Prius is lighter, have lower Cd. Leaf is heavier, lower center of gravity but only so-so Cd.

i also think its a bit psychological. the ability to hear cross-winds swirling around your car when driving at lower speeds makes its feel more dramatic than it really is.
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; 412 mi, 99.72% SOH
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LEAFguy
Posts: 548
Joined: Fri Jul 23, 2010 10:02 am
Delivery Date: 26 Jun 2015
Location: San Diego
Contact: Website

Re: Wind affects LEAF

Mon Feb 28, 2011 2:54 pm

kolmstead wrote:High winds here today; probably 25 mph tailwind as I drove to work, and closer to 35 mph headwind on the way home. LEAF doesn't like wind.

1. 5.3 miles per kWh on the way to work; 3.5 miles per kWh on the way home. Same speed, cruise control on, ECO off, heater on.
-Karl
Karl - excellent real-world information. Thanks!

Here is an old post from greencar.com about energy required vs. speed (with an outstanding graph). In your example above, let's say you were driving at 50 miles per hour. On the way to work, the aerodynamic drag would be the equivalent of 25 miles per hour, using little energy. On the way home, the aerodynamic drag would be the equivalent of 85 miles per hour, using significantly more energy. There are more precise sources available online regarding energy use vs. speed. This is just the first that I found conveniently.

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