Patent ID: 11898629
Assignee: POWER TECHNOLOGY HOLDINGS LLC
Field: Transport (Mechanical engineering)
Classification: CPC F  B  Y | IPC B  F

Claim 0:
1. A vehicle drive system for a vehicle, comprising:
a first prime mover;
a transmission powered by the first prime mover rotating a drive shaft and wheels of the vehicle;
a first PTO coupled to the first prime mover;
a second PTO coupled to the transmission;
a second prime mover configured to provide power to the first prime mover through at least one of the first and the second PTOs or receive power from the first prime mover, wherein the first prime mover rotates using the power from the second prime mover without using fuel; and
a third prime mover coupled to at least one of the first and second PTOs to provide power to assist in propelling the vehicle without using the fuel, wherein the second and the third prime movers receive power from a rechargeable energy source wherein a failure of the first prime mover results in a power increase in at least one of the second or the third prime mover.