Patent ID: 8864364

Claim:
An apparatus for driving a truck mixer ( 1 ), comprising, in the following order, a mixing drum ( 2 ), a mixer transmission ( 8 ) directly coupled to the a mixing drum ( 2 ), an electric motor ( 13 ) directly coupled to the mixer transmission ( 8 ), wherein the mixer transmission ( 8 ) is coupled to the mixing drum ( 2 ) and electric motor ( 13 ) with no other intervening elements therebetween, a controller ( 10 ) directly coupled to the electric motor ( 13 ), wherein the motor ( 13 ) is coupled to the transmission ( 8 ) and controller ( 10 ) therebetween with no other intervening elements therebetween, a vehicle drive train ( 3 ), and a generator ( 9 ) directly coupled to the controller ( 10 ), forming part of the vehicle drive train ( 3 ) and constituting an energy source for operating the electric motor ( 13 ), and wherein the controller ( 10 ) is coupled to the motor ( 13 ) and generator ( 9 ) with no other intervening elements therebetween.