User avatar
evnow
Moderator
Posts: 11480
Joined: Thu Apr 22, 2010 11:41 am
Delivery Date: 25 Feb 2011
Leaf Number: 303
Location: Seattle, WA

Re: Chevrolet Spark EV

Tue Dec 22, 2015 1:41 pm

lorenfb wrote:Could this be a motor that the Bolt will have, and the Spark provides a test vehicle
for an early production of that motor?
I don't think GM was even thinking about Bolt when they designed Spark EV.
1st Leaf : 2/28/2011 to 5/6/2013
2nd Leaf : 5/4/2013 to 3/21/2017
Volt : 3/25/2017 to 5/25/2018
Model 3 : 5/10/2018 to ?

lorenfb
Posts: 2294
Joined: Tue Dec 17, 2013 10:53 pm
Delivery Date: 22 Nov 2013
Leaf Number: 416635
Location: SoCal

Re: Chevrolet Spark EV

Wed Dec 23, 2015 10:02 am

LKK wrote: Most people think the Spark EV drivetrain will be used in the Bolt. Personally I don't think so. The Bolt will be bigger and weigh a lot more, so the puny horsepower output of Spark EV drivetrain in my opinion is too low. Rather than develop a more powerful single motor drivetrain, I think it makes more sense to use the Voltec propulsion system because it already produces adequate torque and horsepower and the two motor design is more efficient at highway speeds than the Spark's.
GM could also possibly change the gearing in the Spark motor assembly thereby reducing the low-end torque
while improving its highway speeds and still maintain the simplicity of single motor design and cost. The HP
(130 - 97kW) of the Spark motor is adequate for the size and weight of the proposed Bolt.
#1 Leaf SL MY 9/13: 74K miles, 48 Ahrs, 5.2 miles/kWh (average), Hx=70, SOH=78, L2 - 100% > 1000, temp < 95F, (DOD) > 20 Ahrs
#2 Leaf SL MY 12/18: 4.5K miles, 115 Ahrs, 5.5 miles/kWh (average), Hx=98, SOH=99, DOD > 20%, temp < 105F

DaveinOlyWA
Posts: 14231
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 16 Nov 2019
Leaf Number: 319862
Location: Olympia, WA
Contact: Website

Re: Chevrolet Spark EV

Thu Dec 24, 2015 8:27 am

evnow wrote:
lorenfb wrote:Could this be a motor that the Bolt will have, and the Spark provides a test vehicle
for an early production of that motor?
I don't think GM was even thinking about Bolt when they designed Spark EV.
unlikely. cars are initially conceived years in advance. an EV platform is simply too expensive to justify with a simple compact. Even Nissan had several platforms in the EV pipeline at the beginning...
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
My Blog; http://daveinolywa.blogspot.com" onclick="window.open(this.href);return false;

User avatar
evnow
Moderator
Posts: 11480
Joined: Thu Apr 22, 2010 11:41 am
Delivery Date: 25 Feb 2011
Leaf Number: 303
Location: Seattle, WA

Re: Chevrolet Spark EV

Sat Dec 26, 2015 7:23 pm

DaveinOlyWA wrote: unlikely. cars are initially conceived years in advance. an EV platform is simply too expensive to justify with a simple compact. Even Nissan had several platforms in the EV pipeline at the beginning...
GM wouldn't have nailed down the details (like how many kwh & range etc). Yes, they would have wanted to use the drivetrain components for future EVs.
1st Leaf : 2/28/2011 to 5/6/2013
2nd Leaf : 5/4/2013 to 3/21/2017
Volt : 3/25/2017 to 5/25/2018
Model 3 : 5/10/2018 to ?

edatoakrun
Posts: 5222
Joined: Thu Nov 11, 2010 9:33 am
Delivery Date: 15 May 2011
Leaf Number: 2184
Location: Shasta County, North California

Re: Chevrolet Spark EV

Thu Mar 30, 2017 5:16 pm

Some more Spark Battery Pack Laboratory Testing Results posted by the AVTA program in Phoenix:

https://avt.inl.gov/vehicle-button/2015-chevrolet-spark

The three 2015s averaging ~8% capacity loss after less than 12k miles driven may not seem reason for celebration, but IMO the packs look to be aging somewhat better than indicated by the previously posted AVTA reports of capacity loss for the 2013 LEAF, 2013 Ford Focus E, or 2015 Kia Soul.
no condition is permanent

GRA
Posts: 11208
Joined: Mon Sep 19, 2011 1:49 pm
Location: East side of San Francisco Bay

Re: Chevrolet Spark EV

Fri Mar 31, 2017 12:40 pm

I sure wish they'd tested some of the 2013s with the LiFePO4 batteries for comparison. That chemistry is known to be more heat tolerant and have a better cycle life than LiMn2O4.
Guy [I have lots of experience designing/selling off-grid AE systems, some using EVs but don't own one. Local trips are by foot, bike and/or rapid transit].

The 'best' is the enemy of 'good enough'. Copper shot, not Silver bullets.

Return to “Other Electric Cars & Plug-In Hybrids”