Cold Weather Testing the Chevrolet Volt in the Great White North
By Pam Fletcher
Global Voltec and Plug-In Hybrid Electric Powertrain Chief Engineer
Kapuskasing, Ontario Canada
Location: Approx. 800 km/500 miles northwest of Toronto
Population: 8,509
Record Low Temp: -47 degrees C
Today’s Forecasted High Temp: -5 degrees C; Feels like -11 degrees C
This may not sound like your ideal winter vacation destination, but for GM’s vehicle development teams, Kapuskasing is perfect. The colder, the windier, the snowier, the better. A bad day up here is a heat wave – when the temperature exceeds -5 degrees Celsius. And I can’t wait to get up there!
This little town, founded in the early 20th century, offers ideal conditions for hunting, fishing and cold weather vehicle testing, especially in vehicles like the 2011 Chevrolet Volt. A few months ago we drove Volt development vehicles through 100+ degree temperatures in Death Valley and through the mountains of Tennessee. Now the development team is up in Ontario to put the Volt through cold-weather testing paces.
We want to see how the vehicle responds in temperatures as low as -40 degrees C. Basically, we try to simulate customer behavior to be sure the vehicle responds exactly as a customer would expect. We spend hours opening and closing all hinges, including doors, trunk, glove box and interior consoles. The vehicles are run through car washes. We drive in the city and make frequent stops. Highway routes allow us to test the vehicle at higher speeds for longer periods of time.
Despite the frigid temperatures, the Volt is engineered to handle extreme conditions. The battery is warmed up during plug-in charging, which is recommended particularly in cold climates, but we realize not everyone will do this. So at night, we plug-in some vehicles and some we don’t. We want to ensure the vehicles start in the morning, or if the battery is too cold, we want to be certain the engine-generator starts first to protect the battery. The engine-generator system will provide energy to heat battery if it was not plugged in or to supplement battery temperature. By the time you remote start the car, or remote cabin conditioning as we refer to it in the Volt, pack up your things and get in, the car is ready to go.
And, there is little fear of driving through the frozen wilderness and becoming stranded due to limited EV range. After up to 40 miles of electric driving, the same engine-generator that warmed up the battery kicks in to power the vehicle for several hundred more miles. This enables us to spend hours each day testing the vehicle’s stability and performance on snowy, icy roads and at times in blizzard conditions.
We recently announced that California will be one of the first markets for the Volt, but this is a car for “anywhere” and that means for anyone, in any climate – from the beaches in Los Angeles to 17 inches of snow and single-digit temperatures in Detroit to 36 inches of snow in Washington D.C.
I’m heading up to Kapuskasing this afternoon with Volt vehicle chief engineer Andrew Farah and others, and we’ll keep you posted on how things are going. We’ll even have a “civilian” with us as our advanced technology communications guy Phil Colley joins the crew for a couple days. You can find all the latest details and behind the scenes activities on chevrolet.posterous.com and Facebook.com, or by following @philcolley, @chevyvoltage or @chevrolet on Twitter. We’ll even try to mix in a live webchat on Wednesday evening, Feb. 17. Stay tuned for more details and be sure to follow along with our activities the next couple days.
4 Comments
Leave a Reply
(If you haven't left a comment here before, you may need to be approved by the site owner before your comment will appear. Until then, it won't appear on the entry. Thanks for waiting.)
After up to 40 miles of electric driving, the same engine-generator that warmed up the battery kicks in to power the vehicle for several hundred more miles.
Ms. Fletcher,
Please, are you really getting “up to 40 miles” in your Ontario tests? What is the realistic single-charge range under “Frozen North” conditions with the heater and defroster running and headlamps on?
By the time you remote start the car, or remote cabin conditioning as we refer to it in the Volt…
What about those who chose not to use “remote cabin conditioning?” What if I have to park it outside overnight at -20^F? Can I just hop in and go? Will “remote cabin conditioning” be a required item to keep the battery in tip-top shape?
Not sure how much you can divulge here, but I’m curious if the Volt will use any sort of heat retaining devices like that of the prius, which currently uses a sort of hot water “Thermos” that basically keeps engine coolant hot for up to 2 days. That way when the engine is started it will warm up that much quicker. I’d imagine this could be helpful in regards to keeping the battery warm or maybe warming it up faster on cold mornings. Also- has there been extensive salt water corrosion testing? My Wife has a 2002 prius that was in Eastern PA for 5 years and the underside of the car was fairly corroded when it came out here to California.
Has GM considered giving Volt buyers the option to buy different sizes of batteries to match how they will drive the car daily? If you allow a 20 mile all electric option that would reduce the battery size and reduce the cost of buying a Volt. This could allow customers to buy the Volt that might not have able to before.
Don’t expect to see that happen John. The battery in the Volt dictates the structure of the car, and the car will be built around the battery. Different sizes aren’t easily possible.
My question is how easy will it be to upgrade batteries as battery technology continues to improve? Will I be able to swap batteries in my five-year old Volt when new battery technology allows the car to go 80 miles on a single-charge instead of 40? Or will that be cost prohibitive because of the labor expense of getting the old battery out and the new one in?