Method and apparatus for detecting a trailer towing mode for a motor vehicle
First Claim
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1. A method for detecting a trailer towing mode for a motor vehicle,comprising the steps of:
- sensing a pressure modulated to a coupling disposed at the motor vehicle and for attachment with a trailer;
providing a pressure signal representing the pressure modulated to the trailer;
ascertaining a first variable representing a pressure buildup as a function of the pressure signal; and
detecting one of a presence and an absence of the trailer towing mode by determining whether the trailer is attached to the coupling as a function of the first variable.
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Abstract
A method and an apparatus for detecting a trailer towing mode for a motor vehicle, in which, depending on the pressure modulated to the trailer, a variable characterizing the pressure buildup is ascertained, and on the basis thereof a determination is made as to whether or not a trailer or semitrailer is attached.
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Citations
14 Claims
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1. A method for detecting a trailer towing mode for a motor vehicle,
comprising the steps of: -
sensing a pressure modulated to a coupling disposed at the motor vehicle and for attachment with a trailer; providing a pressure signal representing the pressure modulated to the trailer; ascertaining a first variable representing a pressure buildup as a function of the pressure signal; and detecting one of a presence and an absence of the trailer towing mode by determining whether the trailer is attached to the coupling as a function of the first variable. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An apparatus for detecting a trailer towing mode for a motor vehicle, comprising:
a control unit for receiving a first variable representing a pressure modulated to a coupling disposed at the motor vehicle and for attachment with a trailer, wherein the control unit includes an arrangement for ascertaining from the first variable a second variable representing a pressure buildup, and for identifying one of a presence and an absence of the trailer towing mode by determining whether the trailer is attached to the coupling as a function of the second variable.
Specification