Patent ID: 7228218
Filing Date: 2007-06-05
Classification: B60L,B60M

Abstract:
1. In an automatic vehicle operation system for controlling the speed of vehicles traveling in a single direction over a guideway, said system consisting of: a. a plurality of successive electrical power segments spaced apart one from another along at least a substantial portion of the length of said roadways; b. a plurality of successive insulator segments disposed between said power segments; c. a vehicle for traveling along said roadways; d. a driving induction motor disposed in said vehicle; e. means for coupling said power segments to said motor; and f. a plurality of electrical power source means coupled to said power segments for producing a series of traveling waves along said power segments, each wave being at a frequency different from that of the other waves, said induction motor receiving with respect to a predetermined wave, a preceding or succeeding wave of a frequency as to decrease the torque of said induction motor for an increase in vehicle speed and to increase the torque of said induction motor for a decrease in vehicle speed from the effective speed of said predetermined wave as it travels along said power rails; the improvement which comprises in combination: