METHOD AND CONTROL ARCHITECTURE FOR OPTIMIZATION OF CYLINDER DEACTIVATION SELECTION AND ENGINE INPUT TORQUE FOR A HYBRID POWERTRAIN SYSTEM
First Claim
1. Method for operating an internal combustion engine adapted to transmit torque to a hybrid transmission, comprising:
- determining engine input torque transmittable to the hybrid transmission for a plurality of engine states the engine states comprising an all-cylinder operation and a cylinder-deactivation operation wherein fewer than all cylinders remain active;
determining costs for operating the engine and hybrid transmission in the engine states to meet an operator torque request; and
,controlling the engine state to one of the all-cylinder operation and the cylinder-deactivation operation based upon the costs.
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0 Petitions
Accused Products
Abstract
A method and article of manufacture are provided for operating an internal combustion engine adapted to transmit torque to a hybrid transmission. The method comprises determining engine input torque transmittable to the hybrid transmission for a plurality of engine states the engine states comprising an all-cylinder operation and a cylinder-deactivation operation. Costs are determined for operating the engine and hybrid transmission in the engine states to substantially meet an operator torque request. The engine state is controlled to one of the all-cylinder operation and the cylinder-deactivation operation based upon the costs.
227 Citations
24 Claims
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1. Method for operating an internal combustion engine adapted to transmit torque to a hybrid transmission, comprising:
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determining engine input torque transmittable to the hybrid transmission for a plurality of engine states the engine states comprising an all-cylinder operation and a cylinder-deactivation operation wherein fewer than all cylinders remain active; determining costs for operating the engine and hybrid transmission in the engine states to meet an operator torque request; and
,controlling the engine state to one of the all-cylinder operation and the cylinder-deactivation operation based upon the costs. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. Method for operating a hybrid powertrain, the hybrid powertrain comprising an internal combustion engine, an energy storage system, an electric machine, and an electro-mechanical transmission, the energy storage system and electric machine electrically-operatively coupled for power flow therebetween;
- and, the engine, electric machine, and the electro-mechanical transmission mechanically-operatively coupled to transmit power therebetween to transmit torque to an output, the method comprising;
determining allowable engine states and an operator torque request; determining engine input torque transmittable to the electro-mechanical transmission for engine states comprising an all-cylinder operation and a cylinder-deactivation operation wherein fewer than all cylinders remain active; determining costs for operating the engine and the electro-mechanical transmission in the engine states to meet an operator torque request; and
,controlling the engine state to one of the engine states comprising an all-cylinder operation and a cylinder-deactivation operation based upon the costs. - View Dependent Claims (16, 17, 18)
- and, the engine, electric machine, and the electro-mechanical transmission mechanically-operatively coupled to transmit power therebetween to transmit torque to an output, the method comprising;
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19. Article of manufacture, comprising a storage medium having a computer program encoded therein for effecting a method to operate an internal combustion engine adapted to transmit torque to a hybrid transmission, the program comprising:
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code to determine engine input torque transmittable to the hybrid transmission for a plurality of engine states the engine states comprising an all-cylinder operation and a cylinder-deactivation operation; code to determine costs for operating the engine and hybrid transmission in the engine states to substantially meet an operator torque request; and
,code to control the engine state to one of the all-cylinder operation and the cylinder-deactivation operation based upon the costs. - View Dependent Claims (20, 21, 22, 23, 24)
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Specification