Patent ID: 9410516
Filing Date: 2016-08-09
CPC Classification: F02D,F02M

Claim Text:
1. A method for operating a fuel system for an internal combustion engine, the fuel system including a metering device for measuring a delivery quantity of the fuel being at least one of selectively openable and closable with the aid of an electrical actuating device, and a valve element of the metering device which is switched into a first position when the actuating device is not activated, and into a second position when the actuating device is activated, the method comprising: (a) activating the electrical actuating device in at least one first cycle such that the valve element switches into the second position; (b) activating the electrical actuating device in at least one second cycle in sequential multiple activations, with activation energy which decreases gradually, until a limiting case is reached in which the valve element one of only just switches into the second position or just no longer switches into the second position; (c) ascertaining a first activation energy which corresponds to the limiting case; and (d) subsequently activating the actuating device, taking the first activation energy into account.