Method for operating a longitudinal driver assist system of an automobile, and an automobile
First Claim
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1. A method for operating a longitudinal driver assist system of an automobile, comprising the steps of:
- evaluating environmental data of a first automobile relating to current travel in a longitudinal convoy which comprises at least three automobiles, including the first automobile and at least two additional automobiles driving directly behind one another, with each of the first automobile and the at least two additional automobiles having an active longitudinal driver assist system,wherein the environmental data comprise a coherently-received radar signal associated with the driver assist system of the first automobile and non-coherently received radar signals associated with the active longitudinal driver assist systems of the at least two additional automobiles,performing in the first automobile a spectral analysis of the non-coherently received radar signals,detecting from the spectral analysis a number of additional active longitudinal driver assist systems,forming a convoy value from the evaluated environmental data, andadapting at least one operating parameter of the driver assist system of the first automobile based on the convoy value.
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Abstract
A method for operating a longitudinal driver assist system of an automobile, in particular an ACC system, wherein environmental data of the automobile are evaluated with respect to travel in a longitudinal convoy with at least three automobiles which include the automobile and at least two additional automobiles, which are driving immediately behind one another and each have an active longitudinal driver assist system. A convoy value is formed, and at least one operating parameter of the driver assist system is adapted depending on the convoy value.
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Citations
14 Claims
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1. A method for operating a longitudinal driver assist system of an automobile, comprising the steps of:
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evaluating environmental data of a first automobile relating to current travel in a longitudinal convoy which comprises at least three automobiles, including the first automobile and at least two additional automobiles driving directly behind one another, with each of the first automobile and the at least two additional automobiles having an active longitudinal driver assist system, wherein the environmental data comprise a coherently-received radar signal associated with the driver assist system of the first automobile and non-coherently received radar signals associated with the active longitudinal driver assist systems of the at least two additional automobiles, performing in the first automobile a spectral analysis of the non-coherently received radar signals, detecting from the spectral analysis a number of additional active longitudinal driver assist systems, forming a convoy value from the evaluated environmental data, and adapting at least one operating parameter of the driver assist system of the first automobile based on the convoy value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An automobile, comprising a longitudinal driver assist system having a controller configured to
evaluate environmental data of the automobile relating to current travel in a longitudinal convoy which comprises at least three automobiles, including the automobile and at least two additional automobiles driving directly behind one another, with each of the at least two additional automobiles also comprising an active longitudinal driver assist system, wherein the environmental data comprise a coherently-received radar signal associated with the driver assist system of the first automobile and non-coherently received radar signals associated with the active longitudinal driver assist systems of the at least two additional automobiles, perform in the first automobile a spectral analysis of the non-coherently received radar signals. detect from the spectral analysis a number of additional active longitudinal driver assist systems, form a convoy value from the evaluated environmental data, and adapt at least one operating parameter of the driver assist system of the automobile based on the convoy value.
Specification