Method for ascertaining an error in a fuel metering unit of an injection system
First Claim
Patent Images
1. A method for ascertaining an error in a fuel metering unit of an injection system for an internal combustion engine, comprising:
- determining a first gradient of a first signal representing a physical variable and a second gradient of a second signal representing a physical variable; and
recognizing an error at at least one of a predefined magnitude and a predefined direction of the first and second gradients.
1 Assignment
0 Petitions
Accused Products
Abstract
A method for ascertaining an error in a fuel metering unit of an injection system for an internal combustion engine, wherein the gradients of a first signal representing a physical variable and of a second signal representing a physical variable are determined, and at a predefined magnitude and/or direction of the two gradients an error is recognized.
-
Citations
10 Claims
-
1. A method for ascertaining an error in a fuel metering unit of an injection system for an internal combustion engine, comprising:
-
determining a first gradient of a first signal representing a physical variable and a second gradient of a second signal representing a physical variable; and recognizing an error at at least one of a predefined magnitude and a predefined direction of the first and second gradients. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A device for ascertaining an error in a fuel metering unit of an injection system for an internal combustion engine, comprising:
a control unit for determining a first gradient of a first signal representing a physical variable and a second gradient of a second signal representing a physical variable, and for recognizing an error at at least one of a predefined magnitude and a predefined direction of the first and second gradients.
-
10. A computer-readable medium containing a computer program which, when executed by a processor, performs the following method for ascertaining an error in a fuel metering unit of an injection system for an internal combustion engine:
-
determining a first gradient of a first signal representing a physical variable and a second gradient of a second signal representing a physical variable; and recognizing an error at at least one of a predefined magnitude and a predefined direction of the first and second gradients.
-
Specification