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Method for angle determination for moving assemblies, and apparatus

  • US 9,612,321 B2
  • Filed: 10/08/2012
  • Issued: 04/04/2017
  • Est. Priority Date: 10/07/2011
  • Status: Expired due to Fees
First Claim
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1. A method for determining an assembly angle between a first assembly and a second assembly movable relative to the first assembly, comprising:

  • coupling a radar sensor with at least two channels physically spaced apart from each other, each channel coupled to the first assembly such that motion of the first assembly causes motion of the respective channel;

    coupling at least two coding radar targets physically spaced apart from each other, each coding radar target coupled to the second assembly such that motion of the second assembly causes motion of the respective coding radar target;

    sending, from the at least two channels of the radar sensor, a sensor signal to the coding radar targets;

    sending, respectively by the coding radar targets in response to the sensor signal, at least one coded signal;

    receiving at least two coded signals from at least two of the coding radar targets by at least one channel of the radar sensor;

    ascertaining a temporal relationship between the at least two coded signals received; and

    determining the assembly angle from the temporal relationship.

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