Secured operation of electronic throttle control (ETC) in...

Internal-combustion engines – Engine speed regulator – Having plural throttle valve structure

Reexamination Certificate

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C123S396000, C123S399000

Reexamination Certificate

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11388910

ABSTRACT:
An engine control system that regulates first and second throttles of an internal combustion engine includes a primary control module that generates a throttle area based on an operator input and a second control module that determines a second throttle position based on the throttle area. The second control module determines a redundant throttle position based on the throttle area and regulates a position of the second throttle based on the second throttle position if the second throttle position and the redundant throttle position correspond with one another.

REFERENCES:
patent: 6513492 (2003-02-01), Bauerle et al.
patent: 7024305 (2006-04-01), Stamm et al.

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