HYBRID DRIVE FOR MEDIUM AND HEAVY DUTY TRUCKS

摘要

A hybrid vehicle drive system is for use with an internal combustion engine, apower take-off, and a transmission.The power take-off is driven by the transmission. The vehicle drive systemincludes a first electric motor, an electronic rechargeableenergy source, a fluid motor, and a rechargeable tank. The first electricmotor is mechanically in series with the internal combustionengine and the transmission. The electronic rechargeable energy source iselectrically coupled to the first electric motor.The fluid motor is in mechanical communication with the power take-off. Therechargeable tank is in fluid communication withthe fluid motor. The first electric motor is configured to provide powerthrough the transmission and the power take-off to the fluidmotor. The fluid motor is configured to provide power to the rechargeabletank. In an alternative embodiment, a second motorcan be either coupled mechanically in series with the transmission or inseries with the fluid motor. A thermal management unitcan be provided for the hybrid drive system that uses components within thehybrid drive system for effecting heating or coolingoperations.