Patent ID: 9156321
Filing Date: 2015-10-13
Classification: B25J,B60D,B62D,B64F,G01D,G01N,H01F

Abstract:
1. A system comprising: a first frame; a first plurality of wheels that are rotatably coupled to said first frame; a drive wheel that is rotatably coupled to said first frame; a transmission coupled to said drive wheel; a motor for driving rotation of said drive wheel via said transmission; a first array of electro-permanent magnets carried by said first frame; a switching unit for selectively activating one or more electro-permanent magnets of said first array in response to control signals; and a controller for sending said control signals to said switching unit, said controller being programmed to cause said switching unit to activate a first number of electro-permanent magnets of said first array and later activate a second number of electro-permanent magnets of said first array, said first and second numbers being different.