Exhaust purification system of internal combustion engine and exhaust purification method
An exhaust purification device and exhaust purification technology, which are applied in the direction of exhaust devices, electric control of exhaust treatment devices, diagnostic devices of exhaust treatment devices, etc., can solve problems such as catalyst exhaust purification performance degradation
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no. 1 approach
[0040] First, refer to Figure 1 to Figure 5 , the first embodiment of the present invention will be described.
[0041]
[0042] figure 1 It is a diagram schematically showing an internal combustion engine 50 using the exhaust purification device for an internal combustion engine according to the first embodiment of the present invention. figure 1 The illustrated internal combustion engine 50 is a spark ignition internal combustion engine (eg, a gasoline engine). The internal combustion engine 50 is mounted on a vehicle.
[0043] The internal combustion engine 50 includes an engine main body 1 including a cylinder block 2 and a cylinder head 4 fixed to the cylinder block 2 . A piston 3 reciprocating in a cylinder formed in the cylinder block 2 is arranged in the cylinder block 2 . A combustion chamber 5 for burning an air-fuel mixture is formed between the piston 3 and the cylinder head 4 .
[0044]An intake port 7 and an exhaust port 9 are formed in the cylinder head ...
no. 2 approach
[0098] The exhaust purification device and exhaust purification method for an internal combustion engine in the second embodiment are basically the same as the exhaust purification device and exhaust purification method for an internal combustion engine in the first embodiment except for the points described below. Therefore, in the following, the second embodiment of the present invention will be described focusing on the differences from the first embodiment.
[0099] Figure 6 It is a diagram schematically showing an exhaust passage of an internal combustion engine using an exhaust purification device for an internal combustion engine according to a second embodiment of the present invention. In the second embodiment, the exhaust purification device further includes an adsorbent heating device 26 for heating the adsorbent 20 and a catalyst heating device 27 for heating the catalyst 24 . The adsorbent heating device 26 is arranged on the upstream side in the exhaust flow di...
no. 3 approach
[0132]The exhaust purification device and exhaust purification method for an internal combustion engine in the third embodiment are basically the same as the exhaust purification device and exhaust purification method for an internal combustion engine in the second embodiment except for the points described below. Therefore, hereinafter, the third embodiment of the present invention will be described focusing on the parts different from the second embodiment.
[0133] Figure 9 It is a diagram schematically showing the configuration of a vehicle using a control device for an internal combustion engine according to a third embodiment of the present invention. The vehicle includes an internal combustion engine 50 , a first motor generator 62 , a power split mechanism 64 , a second motor generator 66 , a power control unit (PCU) 68 , and a battery 70 .
[0134] In the vehicle, driving power is output from the internal combustion engine 50 and the second motor generator 66 . Tha...
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