Exhaust purification system for hybrid vehicle
First Claim
1. An exhaust purification system for a hybrid vehicle comprising:
- an internal combustion engine having an exhaust purification device disposed in an exhaust gas passage of the engine to treat exhaust gas components contained in exhaust gas from the engine;
a motor generator capable of generating electric power by being driven by the engine;
a battery arranged and configured to be selectively charged with electric power generated by the motor generator; and
at least one controller arranged and configured to selectively perform a regeneration control of the exhaust purification device under a predetermined regeneration condition, in which deposits accumulated in the exhaust purification device are burned and removed by increasing exhaust gas temperature through an increase in power output of the engine, and an excess power output caused by the increase in power output of the engine is used to generate the electric power by the motor generator, andwherein the at least one controller is further arranged and configured to control the engine and the motor generator so that the battery is prevented from overcharging by the electric power associated with the regeneration control of the exhaust purification device.
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Accused Products
Abstract
An exhaust purification system for a hybrid vehicle with an internal combustion engine and an electric motor capable of being driven by the engine includes a battery, an exhaust gas passage, an exhaust purification device and at least one controller. The battery is connected to the electric motor and selectively charged with electric power generated by the electric motor. The exhaust gas passage is connected to the internal combustion engine and the exhaust purification device is disposed in the exhaust gas passage. The at least one controller selectively performs regeneration control of the exhaust purification device and controls the engine and the electric motor to ensure that the battery does not become overcharged.
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Citations
29 Claims
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1. An exhaust purification system for a hybrid vehicle comprising:
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an internal combustion engine having an exhaust purification device disposed in an exhaust gas passage of the engine to treat exhaust gas components contained in exhaust gas from the engine; a motor generator capable of generating electric power by being driven by the engine; a battery arranged and configured to be selectively charged with electric power generated by the motor generator; and at least one controller arranged and configured to selectively perform a regeneration control of the exhaust purification device under a predetermined regeneration condition, in which deposits accumulated in the exhaust purification device are burned and removed by increasing exhaust gas temperature through an increase in power output of the engine, and an excess power output caused by the increase in power output of the engine is used to generate the electric power by the motor generator, and wherein the at least one controller is further arranged and configured to control the engine and the motor generator so that the battery is prevented from overcharging by the electric power associated with the regeneration control of the exhaust purification device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. An exhaust purification system for a hybrid comprising:
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an internal combustion engine; first means for treating exhaust gas components contained in exhaust gas from the engine; second means for generating electric power by being driven by the engine; a battery being selectively charged with electric power generated by the second means; and third means for performing a regeneration of the first means under a predetermined regeneration condition, in which deposits accumulated in the first means are removed by increasing exhaust gas temperature through an increase in power output of the internal combustion engine, and an excess power output caused by the increase in power output of the internal combustion engine is used to generate electric power by the second means, and wherein the internal combustion engine and the second means is controlled so that the battery is prevented from overcharging by the electric power associated with the regeneration of the first means.
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27. A method of controlling an exhaust purification system for a hybrid vehicle including an engine and an electric motor capable of being driven by the engine, a battery being selectively charged with electric power generated by the electric motor;
- an exhaust purification device provided in an exhaust passageway of the engine, comprising;
performing a regeneration of an exhaust purification device under a predetermined regeneration condition in which deposits accumulated in the exhaust purification device is removed by increasing exhaust gas temperature through an increase in power output of an engine; absorbing an excess power output associated with the increase in power output of the engine by an electric motor; and controlling the engine and the electric motor so that a battery is prevented from overcharging by the electric power caused by the regeneration of the exhaust purification device. - View Dependent Claims (28, 29)
- an exhaust purification device provided in an exhaust passageway of the engine, comprising;
Specification