Method for detecting torque in a transmission, measuring device and control program
AssigneeWinergy AG
InventorsArno Klein-Hitpass, Jan-Dirk Reimers
Life of this patent
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Abstract
Torque can be detected in a transmission by using at least one vibration sensor to detect at least one vibration signal which is associated with a tooth engagement frequency of intermeshing transmission toothings, and the phase shift of which is dependent on at least one tooth engagement duration of the intermeshing transmission toothings. The tooth engagement duration is torque-dependent as a result of toothing deformations. A torque acting on the transmission is determined from the phase shift of the detected vibration signal and/or of the at least one tooth engagement duration.
Claims12
A method for determining a torque in a transmission, comprising the steps of:
- detecting with at least one vibration sensor at least one vibration signal associated with a tooth engagement frequency of intermeshing transmission toothings;
- determining a phase shift of the at least one vibration signal, said phase shift depending on at least one tooth engagement duration;
- and
- determining a torque value acting on the transmission from the phase shift or the at least one tooth engagement duration, or both.
A measuring device for determining a torque acting on a transmission, said measuring device comprising:
- at least one vibration sensor for measuring at least one vibration signal associated with a tooth engagement frequency of intermeshing transmission toothings, said intermeshing transmission toothings defining a phase shift of the at least one vibration signal which depends on at least one torque-dependent tooth engagement duration;
- and
- a signal processing unit operatively connected to the at least one vibration sensor for determining the torque acting on the transmission from the phase shift of the at least one vibration signal or the at least one torque-dependent tooth engagement duration.
A control program for detecting torque in a transmission, said control program stored on a non-transitory computer-readable medium and having at least one code section which, when loaded into a memory of a data processing device and executed in the data processing device, causes the data processing device to:
- detect with at least one vibration sensor at least one vibration signal associated with a tooth engagement frequency of intermeshing transmission toothings;
- determine a phase shift of the at least one vibration signal, said phase shift depending on at least one tooth engagement duration;
- and
- determine a torque value acting on the transmission from the phase shift or the at least one tooth engagement duration, or both.
Dependencies are inferred from the claim text.