Method for detecting a movement of a flap of a motor vehicle
AssigneeMAGNA Auteca GmbH
InventorBernhard LAMPRECHT
Life of this patent
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Abstract
A method for detecting movement of a vehicle body component moveable by an electric motor having a rotor and a three-phase stator, and a motor vehicle. The method includes: loading two stator phases with a pulse-width-modulated voltage and maintaining a third stator phase at a free-floating state; monitoring the third stator phase as a measuring point for an inductive voltage divider formed using the two stator phases; and detecting movement of the vehicle body component when an electric signal at a measuring point or a variable derived from the electric signal exceeds a specified threshold value. The motor vehicle includes a control device that is operable to perform the method.
Claims20
A method for detecting movement of a vehicle body component moveable by an electric motor having a rotor and a three-phase stator, the method comprising:
- loading two stator phases with a pulse-width-modulated voltage and maintaining a third stator phase at a free-floating state;
- monitoring the third stator phase as a measuring point for an inductive voltage divider formed using the two stator phases;
- and
- detecting movement of the vehicle body component when an electric signal at a measuring point or a variable derived from the electric signal exceeds a specified threshold value.
A method for operating a motor vehicle having a vehicle body component moveable by an electric motor having a rotor and a three-phase stator, the method comprising:
- loading two stator phases with a pulse-width-modulated voltage and maintaining a third stator phase at a free-floating state;
- monitoring the third stator phase as a measuring point for an inductive voltage divider formed using the two stator phases;
- and
- detecting movement of the vehicle body component when an electric signal at a measuring point or a variable derived from the electric signal exceeds a specified threshold value.
A motor vehicle, comprising:
- a vehicle body component;
- an electric motor operable to move the vehicle body component, the electric motor having a rotor and a three-phase stator;
- and
- a control device that is operable to perform operations that include:
- loading two stator phases with a pulse-width-modulated voltage and maintaining a third stator phase at a free-floating state,
- monitoring the third stator phase as a measuring point for an inductive voltage divider formed using the two stator phases, and
- detecting movement of the vehicle body component when an electric signal at a measuring point or a variable derived from the electric signal exceeds a specified threshold value.
Dependencies are inferred from the claim text.