Hybrid vehicle drive system and method and idle reduction system and method

摘要

One embodiment relates to a hybrid vehicle drive system for a vehicle including a first prime mover, a first prime mover driven transmission, a rechargeable power source, and a PTO. The hybrid vehicle drive system further includes a hydraulic motor in direct or indirect mechanical communication with the PTO and an electric motor in direct or indirect mechanical communication with the hydraulic motor. The electric motor can provide power to the prime mover driven transmission and receive power from the prime mover driven transmission through the PTO. The hydraulic motor can provide power to the prime mover driven transmission and receive power from the prime mover driven transmission through the PTO.

主权项

1. A vehicle drive system for a vehicle including a first prime mover, a first prime mover driven transmission, a rechargeable power source, and a PTO, the vehicle drive system comprising:
a through shaft; a hydraulic pump in mechanical communication with the PTO; an electric motor in mechanical communication with the hydraulic pump, wherein the electric motor can receive power from the first prime mover driven transmission through the PTO, wherein the electric motor can provide power to the prime mover driven transmission through the PTO and wherein the hydraulic pump can receive power from the electric motor when the electric motor rotates, the electric motor using power from the rechargeable power source or from the prime mover driven transmission through the PTO to rotate; and a clutch disposed in series with the PTO, the hydraulic pump, and the electric motor, the clutch for disengaging the PTO from the hydraulic pump, wherein the electric motor, the hydraulic pump, and the clutch are coupled to the through shaft.