SYSTEM, METHOD, AND APPARATUS FOR ENHANCING AFTERTREATMENT REGENERATION IN A HYBRID POWER SYSTEM
First Claim
1. A system, comprising:
- an internal combustion engine producing an exhaust gas stream;
an aftertreatment component structured to treat the exhaust gas stream, the aftertreatment component requiring intermittent thermal regeneration events;
an electric component operatively coupled to an output shaft of the internal combustion engine;
a controller structured to;
determine a regeneration state of the aftertreatment component and determine an engine operation parameter;
provide an engine loading command in response to the engine operation parameter and further in response to the regeneration state indicating an active thermal regeneration event; and
wherein the electric component is structured to provide oppositional torque to the output shaft in response to the engine loading command.
1 Assignment
0 Petitions
Accused Products
Abstract
A method includes providing an internal combustion engine having an output shaft and producing an exhaust gas stream, providing an electric motor operatively coupled to the output shaft, and determining a regeneration state of an aftertreatment component that treats the exhaust gas stream. The method further includes determining an engine torque requirement such that, when the internal combustion engine achieves the engine torque requirement at a present set of operating conditions, a temperature of the exhaust gas stream will achieve an exhaust gas temperature threshold. The method further includes commanding the electric motor to apply a counter torque to the output shaft in response to the regeneration state indicating an active thermal regeneration event, where the counter torque comprises is high enough for the internal combustion engine to achieve the engine torque requirement. The exhaust gas temperature threshold may be a hold-warm temperature and/or a regeneration temperature.
20 Citations
30 Claims
-
1. A system, comprising:
-
an internal combustion engine producing an exhaust gas stream; an aftertreatment component structured to treat the exhaust gas stream, the aftertreatment component requiring intermittent thermal regeneration events; an electric component operatively coupled to an output shaft of the internal combustion engine; a controller structured to; determine a regeneration state of the aftertreatment component and determine an engine operation parameter; provide an engine loading command in response to the engine operation parameter and further in response to the regeneration state indicating an active thermal regeneration event; and wherein the electric component is structured to provide oppositional torque to the output shaft in response to the engine loading command. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A method, comprising:
-
providing an internal combustion engine having an output shaft and producing an exhaust gas stream; providing an electric component operatively coupled to the output shaft; determining a regeneration state of an aftertreatment component, the aftertreatment component structured to treat the exhaust gas stream; determining an engine operation parameter; and commanding the electric component to provide oppositional torque to the output shaft in response to the engine operation parameter and further in response to the regeneration state indicating an active thermal regeneration event. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
-
-
23. An apparatus, comprising:
-
an operating conditions module structured to determine a regeneration state of an aftertreatment component and an engine operation parameter; an intervention module structured to determine an intervention indicator in response to the engine operation parameter and the regeneration state indicating an active thermal regeneration event; and an electric component command module structured to provide an engine loading command in response to the intervention indicator; and an electric component structured to apply an opposition torque to an output shaft of an engine in response to the engine loading command. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30)
-
Specification