HYBRID DRIVE FOR MEDIUM AND HEAVY DUTY TRUCKS

摘要

A hybrid vehicle drive system is for use with an internal combustion engine, a power take-off, and a transmission. The power take-off is driven by the transmission. The vehicle drive system includes a first electric motor, an electronic rechargeable energy source, a fluid motor, and a rechargeable tank. The first electric motor is mechanically in series with the internal combustion engine and the transmission. The electronic rechargeable energy source is electrically coupled to the first electric motor. The fluid motor is in mechanical communication with the power take-off. The rechargeable tank is in fluid communication with the fluid motor. The first electric motor is configured to provide power through the transmission and the power take-off to the fluid motor. The fluid motor is configured to provide power to the rechargeable tank. In an alternative embodiment, a second motor can be either coupled mechanically in series with the transmission or in series with the fluid motor. A thermal management unit can be provided for the hybrid drive system that uses components within the hybrid drive system for effecting heating or cooling operations.