Hybrid vehicle powertrain system with power take-off driven vehicle accessory
AssigneeEaton Corporation
InventorsKevin D. Beaty, Thomas R. Bockelmann, Zhanijang Zou, Mark E. Hope, Xiaosong Kang, Jeffrey L. Carpenter
Life of this patent
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Abstract
A hybrid vehicle powertrain system includes a first prime mover, a first prime mover driven power transmission mechanism having a power take-off adapted to drive a vehicle accessory, and a second prime mover. The second prime mover is operable to drive the power transmission mechanism alone or in combination with the first prime mover to provide power to the power take-off through the power transmission mechanism. The invention further includes methods for operating a hybrid vehicle powertrain system.
Claims27
A hybrid vehicle powertrain system, comprising:
- a first prime mover;
- a first prime mover driven power transmission mechanism having a power take-off adapted to drive a vehicle accessory;
- a second prime mover operable to drive the power transmission mechanism alone or in combination with the first prime mover to provide power to the power take-off through the power transmission mechanism;
- and
- a rechargeable energy source, wherein the second prime mover is operable as a generator or pump and the first prime mover is configured to provide power to the generator or pump to recharge the energy source.
A hybrid vehicle powertrain system, comprising:
- a first prime mover;
- a first prime mover driven power transmission mechanism;
- a rechargeable energy source;
- an energy source powered second prime mover operable to drive the power transmission mechanism alone or in combination with the first prime mover, the first prime mover operable to drive the second prime mover to recharge the energy source in response to an energy level in the energy source falling below a predetermined level;
- and
- an energy source powered vehicle accessory.
A method of operating a hybrid vehicle powertrain system, comprising:
- providing a first prime mover, a first prime mover driven power transmission mechanism having a power take-off adapted to drive a vehicle accessory, and a second prime mover operable to drive the power transmission mechanism alone or in combination with the first prime mover;
- operating the second prime mover to provide power to the power take-off through the power transmission mechanism;
- and
- providing a rechargeable energy source and operating the second prime mover as a generator or pump to recharge the energy source.
A method of operating a hybrid vehicle powertrain system, comprising:
- providing a first prime mover, a first prime mover driven power transmission mechanism, a rechargeable energy source, a second prime mover operable to drive the power transmission mechanism alone or in combination with the first prime mover and further operable to recharge the energy source, and an energy source powered vehicle accessory;
- operating the vehicle accessory using energy from the energy source;
- and operating the second prime mover to recharge the energy source in response to an energy level in the energy source falling below a predetermined level.
Dependencies are inferred from the claim text.