HYBRID VEHICLE DRIVE SYSTEM AND METHOD USING SPLIT SHAFT POWER TAKE OFF
First Claim
Patent Images
1. A vehicle drive system for a vehicle including a first prime mover, a first prime mover driven transmission, and a rechargeable energy source, the vehicle drive system comprising:
- a split shaft PTO configured to receive power from a plurality of components and transfer power to a plurality of components;
an electric motor in direct or indirect mechanical communication with the first prime mover driven transmission through the split shaft PTO, wherein the electric motor can receive power from the first prime mover driven transmission via the split shaft PTO; and
a fluid motor in direct or indirect mechanical communication with the split shaft PTO, the fluid motor being powered by rotation of the electric motor via the split shaft PTO, wherein the electric motor can be rotated using power from the rechargeable energy source or the fluid motor can be rotated using power from the first prime mover via the split shaft PTO.
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Abstract
A hybrid vehicle drive system for use with a first prime mover and a transmission driven by the first prime mover. The system includes a second prime mover coupled to a rechargeable energy source, a split shaft PTO, and an accessory coupled to the split shaft PTO. The split shaft PTO is configured to couple to the second prime mover, and the accessory is configured to receive power from the second prime mover through the split shaft PTO.
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Citations
20 Claims
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1. A vehicle drive system for a vehicle including a first prime mover, a first prime mover driven transmission, and a rechargeable energy source, the vehicle drive system comprising:
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a split shaft PTO configured to receive power from a plurality of components and transfer power to a plurality of components; an electric motor in direct or indirect mechanical communication with the first prime mover driven transmission through the split shaft PTO, wherein the electric motor can receive power from the first prime mover driven transmission via the split shaft PTO; and a fluid motor in direct or indirect mechanical communication with the split shaft PTO, the fluid motor being powered by rotation of the electric motor via the split shaft PTO, wherein the electric motor can be rotated using power from the rechargeable energy source or the fluid motor can be rotated using power from the first prime mover via the split shaft PTO. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A hybrid vehicle drive system for use with a first prime mover and a transmission driven by the first prime mover, the system comprising:
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a second prime mover coupled to a rechargeable energy source; a split shaft PTO configured to couple to the second prime mover; and an accessory, wherein the accessory is coupled to the split shaft PTO, the accessory being configured to receive power from the second prime mover through the split shaft PTO. - View Dependent Claims (12, 13, 14, 15)
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16. A method of using a vehicle with a hybrid vehicle drive system, the vehicle includes a first prime mover, an electric motor, a first rechargeable energy source, and a first prime mover driven transmission, the method comprising:
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using the electric motor coupled to a split shaft PTO to charge the first rechargeable energy source in a first mode via the first prime mover through the split shaft PTO; using the electric motor to drive an accessory via the split shaft PTO using energy from the first rechargeable energy source in a second mode; and using the first prime mover to drive the accessory via the split shaft PTO in a third mode. - View Dependent Claims (17, 18, 19, 20)
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Specification