Patent ID: 7441618

Claim:
An electrical drive system for a vehicle with a skid steering element having at least: a left electrical drive engine ( 2 ) and a homogeneous right electrical drive engine ( 4 ); an electrical energy source ( 6 ); an electrical control unit ( 8 ) for independently increasing a number of revolutions at the left electrical drive engine ( 2 ) and the right electrical drive engine ( 4 ); a left gear unit ( 16 ), connected with one of a left drive wheel or track of a left drive unit ( 22 , 28 ), and the left drive engine ( 2 ) is connected with a first left transfer element ( 26 ) and a second left transfer element ( 24 ); a homogeneous right gear unit ( 18 ) connected with one of a right drive wheel or track of a right drive unit ( 34 , 40 ), and the right drive engine ( 4 ) is connected with a first right transfer element ( 38 ) and a second right transfer element ( 36 ); and a first left transfer element ( 26 ) is connected directly with the second right transfer element ( 36 ) by a first mechanical gear train ( 44 , 50 ; 48 , 52 ; 46 ), and the first right transfer element ( 38 ) is connected directly with the second left transfer element ( 24 ) by a second mechanical gear train ( 54 , 60 ; 58 , 62 ; 56 ).