Exhaust gas purification system for hybrid vehicle
First Claim
1. An exhaust gas purification system for a hybrid vehicle comprising:
- an internal combustion engine and an electric motor each arranged for providing power output for the vehicle,an exhaust gas purification device disposed in an exhaust passage of the engine to treat exhaust gas components contained in exhaust gas from the engine,a controller arranged and configured to selectively perform a regeneration operation of the exhaust gas purification device to burn and remove deposits accumulated in the exhaust gas purification device, andthe controller further arranged and configured to control the engine and the electric motor such that the exhaust gas purification device is restrained from reaching an excessive temperature during the regeneration operation of the exhaust gas purification device.
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Accused Products
Abstract
An exhaust gas purification system for a hybrid vehicle is disclosed. An internal combustion engine and an electric motor are each arranged for providing power output for the vehicle. An exhaust gas purification device is provided in an exhaust gas passage of the engine to treat exhaust gas components contained in the exhaust gas from the engine. A controller is arranged and configured to selectively perform a regeneration operation of the exhaust gas purification device to burn and remove deposits accumulated in the exhaust gas purification device. The controller is further arranged and configured to control the internal combustion engine and the electric motor such that the exhaust gas purification device is restrained from reaching an excessive temperature during the regeneration operation of the exhaust gas purification device.
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Citations
26 Claims
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1. An exhaust gas purification system for a hybrid vehicle comprising:
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an internal combustion engine and an electric motor each arranged for providing power output for the vehicle, an exhaust gas purification device disposed in an exhaust passage of the engine to treat exhaust gas components contained in exhaust gas from the engine, a controller arranged and configured to selectively perform a regeneration operation of the exhaust gas purification device to burn and remove deposits accumulated in the exhaust gas purification device, and the controller further arranged and configured to control the engine and the electric motor such that the exhaust gas purification device is restrained from reaching an excessive temperature during the regeneration operation of the exhaust gas purification device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 20, 23, 24)
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19. The exhaust gas purification system under 17, wherein
the control for increasing the power output of the engine is carried out after the state of charge of the battery has dropped below a first level and until the state of charge of the battery increases to a second level that is set higher than the first level.
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25. An exhaust gas purification system for a hybrid vehicle equipped with an internal combustion engine and an electric motor each arranged for providing power outputs for the vehicle, the exhaust gas purification system comprising:
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purification means, disposed in an exhaust gas passage of an internal combustion engine, for purifying exhaust gas components contained in exhaust gas from the internal combustion engine, and control means, operatively connected to the internal combustion engine and an electric motor, for performing a regeneration of the purification means by burning the deposits accumulated in the purification means such that the purification means is restrained from reaching an excessive temperature during the regeneration of the purification means.
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26. A method for controlling an exhaust gas purification system for a hybrid vehicle equipped with an internal combustion engine and an electric motor each arranged for providing power outputs for the vehicle, comprising:
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performing a regeneration of an exhaust gas purification device disposed in an exhaust passage of an internal combustion engine to burn and remove deposits accumulated in the exhaust gas purification device, and controlling the internal combustion engine and an electric motor to restrain the exhaust gas purification device from reaching an excessive temperature during the regeneration of the exhaust gas purification device.
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Specification