| 摘要 |
In an internal combustion engine, the fuel reaches a combustion chamber via at least one fuel-injecting device. The fuel-injecting device includes a piezo actuator. The drive energy (U), which is necessary for a specific stroke (h) of the piezo actuator, is determined from at least one function (34 to 40) which couples the stroke (h), the drive energy (U) and the drive time (t) of the piezo actuator with each other. In order to more accurately adjust the stroke of the piezo actuator, it is suggested that a function (34 to 40) be used for the determination of the drive energy (U). These functions (34 to 40) were previously determined for a typical collective load (L1, L2) to which a piezo actuator is subjected.
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