| 摘要 |
The invention relates to a method for determining a position and/or change in position of a hydraulic pump of a motor vehicle brake system, wherein the hydraulic pump is operated by means of a pulse-modulated actuated electric machine, and a current-measurement signal (Is) and/or a voltage-measurement signal (Us) of the electric machine (4,13-1,13-2,13-n) and/or of a load current circuit for supplying the electric machine (4,13-1,13-2,13-n) are detected, wherein the position and/or change in position of the hydraulic pump is determined on the basis of the current-measurement signal (Is) and/or of the voltage-measurement signal (Us) as well as of at least one frequency (F) of the current-measurement signal (Is) and/or of the voltage-measurement signal (Us), which has an essentially integer division ratio with respect to a commuter frequency of the electric machine (4,13-1,13-2,13-n). The invention further relates to a corresponding motor vehicle brake system. |
