Method and apparatus for selective operation of a hybrid electric vehicle powerplant
First Claim
1. A method for adaptively controlling a hybrid electric vehicle including an energy generation system, an energy storage system receiving energy at least from the energy generation system, and at least one electric motor receiving energy from the energy storage system with the energy generation system selectively operated in various operation modes, comprising:
- operating the energy generation system in a first mode in which the energy generation system is off and the motor propels the vehicle from power stored in the energy storage system;
operating the energy generation system in a second mode in which the energy generation system is operating without restriction as to limiting vehicle discharges; and
operating the energy generation system in a third mode in which the operation of the energy generation system is at least partially restricted to limit vehicle discharges.
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Accused Products
Abstract
A series type hybrid electric vehicle that controls an internal combustion engine, generator, and electric motor for reducing the load applied to the internal combustion engine when the internal combustion engine is restarted, lowers the thermal stresses to the internal combustion engine when the engine is turned off and is able to remove excess fuel when turning off the internal combustion engine.
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Citations
34 Claims
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1. A method for adaptively controlling a hybrid electric vehicle including an energy generation system, an energy storage system receiving energy at least from the energy generation system, and at least one electric motor receiving energy from the energy storage system with the energy generation system selectively operated in various operation modes, comprising:
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operating the energy generation system in a first mode in which the energy generation system is off and the motor propels the vehicle from power stored in the energy storage system;
operating the energy generation system in a second mode in which the energy generation system is operating without restriction as to limiting vehicle discharges; and
operating the energy generation system in a third mode in which the operation of the energy generation system is at least partially restricted to limit vehicle discharges. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 23)
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9. A hybrid electric vehicle, comprising:
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an energy generation system;
an energy storage system receiving energy at least from the generation system;
at least one electric motor receiving energy from the energy storage system; and
a controller that selectively operates the energy generation system in various operation modes, including;
a first mode in which the energy generation system is off and the motor propels the vehicle from power stored in the energy storage system;
a second mode in which the energy generation system is operating without restriction as to limiting vehicle discharges; and
a third mode in which the operation of the energy generation system is at least partially restricted to limit vehicle discharges. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A method for adaptively controlling a hybrid electric vehicle including an emission creating energy generation system, an energy storage system receiving energy at least from the energy generation system, and at least one electric motor propelling the vehicle through a zone of reduced emissions, comprising:
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determining the zone of reduced emissions;
turning off the energy generation system before entering the zone;
maintaining the energy generation system in an off mode while the vehicle is propelled in the zone by the motor; and
turning on the energy generation system after the vehicle leaves the zone. - View Dependent Claims (18, 19, 20, 21, 22, 24, 25)
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26. A hybrid electric vehicle, comprising:
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an emission creating energy generation system;
an energy storage system that receives energy at least from the energy generation system;
a least one electric motor receiving power from the energy storage system, the motor propelling the vehicle; and
a controller that;
determines a zone of reduced emissions;
turns off the energy generation system before entering the zone;
maintains the energy generation system in an off mode while the vehicle is propelled in the zone by the motor; and
turns on the energy generation system after the vehicle leaves the zone. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33)
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34. A hybrid electric vehicle, comprising:
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an emissions creating energy generation system connected to a generator;
an electrical energy storage system receiving current at least from the generator;
a least one electric motor receiving current from the electrical energy storage system, the motor propelling the vehicle; and
a controller that controls the vehicle according to the following modes;
a normal mode where the energy generation system and generator operate to produce power higher than a power consumption of the motor;
a first transition mode, after the controller determines a zone of reduced emissions, for determining an electrical charge of the energy storage system before entering the zone, activating the generator to charge the energy storage system to a predetermined electrical level before entering the zone if the electrical charge is below the predetermined level, and turning off the energy generation system and the generator before entering the zone; and
a reduced emission mode after the first transition mode for maintaining the energy generation system and the generator in the off mode while the vehicle is propelled in the zone by the motor.
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Specification