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US 9,956,881 B2Granted
Hybrid electric drive system and method
AssigneeAutonomous Tractor Corporation
InventorTerry Anderson
Life of this patent
Estimating the term…
Abstract
A hybrid drive system and associated methods are described that include an internal combustion engine, an electric motor, and a liquid cooling system. In one example, the liquid cooling system includes an oil circulation system that cools selected components, and lubricates selected components.
Claims13
A hybrid drive system, comprising:
- an internal combustion engine;
- at least one electric motor;
- an electric generator mechanically coupled to the internal combustion engine, and electrically coupled to the electric motor;
- electronics to control the drive system;
- a pressurized liquid circulation system, coupled to the internal combustion engine, the electric motor, and the electronics;
- and
- an emergency brake system coupled to the pressurized liquid circulation system, wherein one or more brakes are released only when pressure is maintained in the pressurized liquid circulation system.
4 more elements
An autonomous vehicle, comprising:
- an internal combustion engine;
- at least one electric motor;
- an electric generator mechanically coupled to the internal combustion engine, and electrically coupled to the electric motor;
- a number of drive wheels mounted to the frame, and electrically coupled to the electric motor;
- a pressurized oil circulation system, coupled to the internal combustion engine, and the electric motor;
- and
- an emergency brake system coupled to the pressurized oil circulation system, wherein one or more brakes in the number of drive wheels are released only when pressure is maintained in the pressurized oil circulation system.
4 more elements
Dependencies are inferred from the claim text.