Method for synchronizing two drive elements of a powertrain of a motor vehicle, and powertrain for a motor vehicle
AssigneeAudi AG
InventorMathias WEINHARDT
Life of this patent
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Abstract
A method for synchronizing a first drive element rotatable about an axis of rotation with a second drive element rotating about the axis of rotation at a target speed, of a powertrain of a motor vehicle, in which a synchronizing force is exerted on a synchronizing unit by an actuator. A speed, at which the first drive element rotates about the axis of rotation is adapted by the synchronizing unit to the target speed. The synchronizing force is increased during a first time span, so that the speed approaches the target speed. The synchronizing force is continuously reduced during a second time span following the first time span, before the speed corresponds to the target speed.
Claims11
1-10 (canceled)
A method for synchronizing a first drive element rotatable about an axis of rotation with a second drive element rotating about the axis of rotation at a target speed, of a powertrain of a motor vehicle, comprising:
- a synchronizing force is exerted on the synchronizing unit by an actuator, whereby a speed, at which the first drive element rotates about the axis of rotation, is adapted by the synchronizing unit to the target speed, wherein the synchronizing force is increased during a first time span, so that the speed approaches the target speed, wherein the synchronizing force is continuously reduced during a second time span following the first time span, before the speed corresponds to the target speed.
A powertrain for a motor vehicle, comprising:
- a first drive element rotatable about an axis of rotation, having a second drive element rotatable about the axis of rotation, having a synchronizing unit for synchronizing the first drive element with the second drive element, having an actuator, by which a synchronizing force can be exerted on the synchronizing unit to thus adapt a speed of the first drive element to a target speed of the second drive element by the synchronizing unit, and having an electronic processing unit, which is designed to control the actuator to thus set the exertion of the synchronizing force on the synchronizing unit, wherein the electronic processing unit is designed to control the actuator in such a way that:
- the synchronizing force increases during a first time span, so that the speed approaches the target speed;
- and
- the synchronizing force is continuously reduced during a second time span following the first time span, before the speed corresponds to the target speed.
Dependencies are inferred from the claim text.