English to German Tech/Engineering Automotive / Cars & Trucks

http://www.freepatentsonline.com/y2007/0271907.html

9. The internal combustion engine as recited in claim 4, wherein the controller is configured to increase an operating duty of the exhaust valve phase changing device upon the passage opening condition being satisfied prior to switching of the passage open/close unit from the closed state to the open state.


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Second Embodiment

Referring now to FIG. 3, an internal combustion engine in accordance with a second embodiment will now be explained. In view of the similarity between the first and second embodiments, the parts of the second embodiment that are identical to the parts of the first embodiment will be given the same reference numerals as the parts of the first embodiment. Moreover, the descriptions of the parts of the second embodiment that are identical to the parts of the first embodiment may be omitted for the sake of brevity.

The structures of the internal combustion engine of the second embodiment are basically identical to the structures of the internal combustion engine of the first embodiment illustrated in FIG. 1. However, the second embodiment differs from the first embodiment in the control executed in the controller 50 . More specifically, the control executed in the second embodiment of the present invention is basically identical to the control executed in the first embodiment explained above except that, in the second embodiment, the operating duty (variable valve timing duty) for an actuator that controls the exhaust valve phase of the exhaust valve operating mechanism 17 is increased in advance by taking into account the responsiveness of the actuator.