Control of an electric circuit in a motor vehicle
AssigneeZF Friedrichshafen AG
InventorMichel Wetterau
Life of this patent
Estimating the term…
Abstract
A method (200) for operating an electrical vehicle circuit (115) of a motor vehicle (105) includes determining that a voltage of the vehicle circuit (115) drops below a predetermined threshold value while electric current from the vehicle circuit (115) flows through a consumer (130) on board the motor vehicle (105), lowering a voltage present at the consumer (130) in order to reduce the current flowing through the consumer (130), and successively raising the voltage present at the consumer (130).
Claims10
A method (200) for operating an electrical vehicle circuit (115) of a motor vehicle (105), comprising:
- determining (205) that a voltage of the vehicle circuit (115) is below a predetermined threshold value while electric current from the vehicle circuit (115) flows through a consumer (130) on board the motor vehicle (105);
- lowering (210) a voltage present at the consumer (130) in order to reduce the current flowing through the consumer (130);
- and
- continuously raising (220) the voltage present at the consumer (130) at a predetermined rate of change.
A control device (110) for an electrical vehicle circuit (115) of a motor vehicle (105), comprising:
- a voltage controller (150) for providing a voltage for a consumer (130) from the vehicle circuit (115);
- a scanning unit (140) for determining a voltage of the vehicle circuit (115);
- and
- a processing unit (135) configured for
- determining that the voltage of the vehicle circuit (115) has fallen below a predetermined threshold value,
- lowering the voltage provided to the consumer (130) in order to reduce a current flowing from the vehicle circuit (115) through the consumer (130), and
- continuously raising the voltage provided to the consumer (130) at a predetermined rate.
Dependencies are inferred from the claim text.