System and method for employing gasoline compression ignition in a hybrid electric vehicle
AssigneeSaudi Arabian Oil Company
InventorsHyun Woo WON, Junseok Chang, Kukwon Cho
Life of this patent
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Abstract
A hybrid electric vehicle comprises a set of wheels, a mechanical transmission adapted to provide torque to the set of wheels, an electric motor coupled to and providing motive force to the mechanical transmission, battery storage coupled to and supplying electrical power to the electric motor, and a gasoline compression ignition (GCI) engine coupled to at least one of the mechanical transmission and the electric motor so as to provide mechanical energy to the mechanical transmission and energy for operating the electric motor.
Claims28
A hybrid electric vehicle comprising:
- a set of wheels;
- a mechanical transmission adapted to provide torque to the set of wheels;
- an electric motor coupled to and providing motive force to the mechanical transmission;
- battery storage coupled to and supplying electrical power to the electric motor;
- a gasoline compression ignition (GCI) engine coupled to at least one of the mechanical transmission and the electric motor to provide mechanical energy to the mechanical transmission and energy for operating the electric motor;
- and
- an electronic control unit coupled to and adapted to control operation of the GCI engine and the electric motor.
A method of operating a hybrid electric vehicle containing an internal combustion engine and an electric motor in which the vehicle has both gasoline fuel and battery storage, comprising:
- operating the internal combustion engine in gasoline compression ignition (GCI) mode to auto-ignite the gasoline fuel;
- coupling the electric motor to a mechanical transmission to provide motive power to the vehicle;
- and
- channeling output of the internal combustion engine to drive at least one of a mechanical transmission and an electric generator.
A hybrid electric vehicle comprising:
- a set of wheels;
- a mechanical transmission adapted to provide torque to the set of wheels;
- an electric motor coupled to and providing motive force to the mechanical transmission;
- battery storage coupled to and supplying electrical power to the electric motor;
- a gasoline compression ignition (GCI) engine coupled to at least one of the mechanical transmission and the electric motor to provide mechanical energy to the mechanical transmission and energy for operating the electric motor;
- an electronic control unit coupled to and adapted to control operation of the GCI engine and the electric motor;
- a fuel supply coupling coupled to the GCI engine for providing octane gasoline fuel having an octane number between 40 and 60;
- a power-split device mechanically coupled to the GCI engine and to the electric motor;
- and
- an electric generator coupled to the power-split device,
- wherein the electronic control unit controls the amount of motive power provided by both the GCI engine and the electric motor to drive the vehicle.
A hybrid electric vehicle comprising:
- a set of wheels;
- a mechanical transmission adapted to provide torque to the set of wheels;
- an electric motor coupled to and providing motive force to the mechanical transmission;
- battery storage coupled to and supplying electrical power to the electric motor;
- a gasoline compression ignition (GCI) engine coupled to at least one of the mechanical transmission and the electric motor to provide mechanical energy to the mechanical transmission and energy for operating the electric motor;
- an electronic control unit coupled to and adapted to control operation of the GCI engine and the electric motor;
- a fuel supply coupling coupled to the GCI engine for providing gasoline fuel,
- an electric generator mechanically coupled to and powered by the GCI engine,
- wherein the electric motor is coupled to the mechanical transmission to provide motive power for the vehicle and the electronic control unit is adapted to control the electric generator to provide power to the electric motor.
Dependencies are inferred from the claim text.