Method for controlling a piezo-actuated fuel-injection valve
AssigneeSiemens Aktiengesellschaft
InventorsAchim Przymusinski, Hartmut Wolpert
Life of this patent
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Abstract
In a method for the diagnosis of a sensor, in particular a pedal-travel sensor of a motor vehicle, a first signal (S1) and at least one second equivalent signal (S2) are delivered. If the second signal (S2) is time-delayed with respect to the first signal (S1), at least the previous curve of the first signal (S1) and/or the previous curve of the second signal (S2) is taken into account.
Claims33
A method for diagnosis of a sensor, especially a sensor for generating pedal travel values for a motor vehicle, comprising the steps of:
- receiving a first signal and at least an equivalent value second signal from the sensor, and
- at least when the second signal exhibits a time delay compared to the first signal, taking into account the previous curve of the first signal and/or the previous curve of the second signal.
A device for diagnosis of a sensor, especially a sensor for generating pedal travel values for a motor vehicle, comprising:
- means for receiving a first signal and at least an equivalent value second signal from the sensor, and
- an evaluation unit for determining whether the second signal exhibits a time delay compared to the first signal, in which case the device takes the previous curve of the first signal and/or the previous curve of the second signal into account.
A device for diagnosis of a sensor, especially a pedal travel sensor of a motor vehicle which delivers a first signal and at least one second equivalent signal wherein at least when the second signal exhibits a time delay compared to the first signal, the device takes account of the previous curve of the first signal and/or the previous curve of the second signal.
Dependencies are inferred from the claim text.