[ad#post_ad]Many people who fancy buying and driving a Volt plan to use little or no gasoline. Since the car will accommodate up to 80% of the population’s driving needs purely on electricity, GM has to prepare for an engine that may be rarely or never used.
A similar concern is the possibility of old gas becoming stale.
GM is using a pressurized zero evaporation gas tank to keep the gas fresh.
“It’s like shrink-wrapping your food,” engineer Trent Warnke told Ward’s Auto. “It keeps the fuel from aging.”
GM will also recommend low gas using consumers only fill their tanks halfway to prevent spoilage.
In addition, the car will have a special algorithm in its control software to ensure the gas engine runs at least once every 60 days to keep things circulating.
The engine will only run while the car is in motion, and will only do so for about 10 minutes. This is sufficient time for the control unit to perform some diagnostic checks as well.
Thus far, the 80 or so pre-production Volts have endured over 500,000 collective miles of test driving, with one car having completed 66,000 miles.
Starting in May, 300 more pre-production or validation vehicles will be built on the full-scale Detroit Hamtramck assembly line. These will be used for testing by engineers, consumers, and the media.
The first saleable car is scheduled to be built on November 1.
Peak all electric range occurs when driving between 45 and 50 mph.
Source (Ward’s Auto, subscription only)
This entry was posted on Thursday, February 18th, 2010 at 8:23 am and is filed under Generator, Prototypes. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.