CHICOPEE — Four new electric vehicle charging stations have been added to the Pilot service station on Burnett Road, the company said. The 11,421-square-foot facility already has a 16-pump gas station for vehicles, a seven-position refueling area for tractor-trailer trucks, a convenience store and showers for truckers, and Pilot eats, the company’s proprietary food brand of pizza, deli items and other fast-food options.