Notes from research division, electrical engineering department, Massachusetts Institute of technology

• Publisher: Elsevier Science
• Year: 1917
• Tongue: English
• Weight: 118 KB
• Volume: 183
• Category: Article
• ISSN: 0016-0032
• DOI: 10.1016/s0016-0032(17)90635-0

✦ Synopsis

A RESEARCH on " Tractive Resistances to a Motor Delivery Wagon on Different Roads and at Different Speeds," by A. E. Kennelly and O. R. Schurig, has recently been issued from the Electrical Engineering Department of the M. I. T.. as its Bulletin No. Io. It is a reprint of a paper read before the American In2 stitute of Electrical Engineers in June last. The research was carried out in and near Boston in I915-I916, under an appropriation from Mr. Thomas A. Edison, and also from the Gould Storage Battery Co.

Measurements of tractive resistances of various kinds of vehicles have been made and recorded for many years: but the methods of analyzing and presenting the results as contained in this report, appear to be new, and have certain advantages. The authors define the tractive resistance of an electricallv selfpropelled vehicle, on a level road, in the absence of wind, as tlle horizontal force which, applied to the vehicle at the actual steady running velocity, would develop a power equal to the battery output after deducting from the latter all losses in the motors, gear, and internal car-wheel mechanism: i.e., all losses from battery * Communicated 1Lv the Director.