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US 12,448,036 B2Granted
Vehicle oscillation control
AssigneeGM Global Technology Operations LLC
InventorsWen-Chiao Lin, Bo Yu, Raed Nasim Abuaita
Life of this patent
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Abstract
Techniques are provided for vehicle oscillation control. In one embodiment, the techniques involve identifying an oscillation at a steering wheel or steering column of a vehicle, upon determining that the oscillation exceeds an oscillation of interest threshold, identifying the oscillation as an oscillation of interest, classifying a cause of the oscillation of interest, and mitigating the oscillation of interest based on the classification of the cause.
Claims20
A method comprising:
- identifying an oscillation at a steering wheel or steering column of a vehicle;
- upon determining that the oscillation exceeds an oscillation of interest threshold, identifying the oscillation as an oscillation of interest;
- classifying a cause of the oscillation of interest, wherein the cause of the oscillation of interest comprises a power steering feature, and wherein classifying the power steering feature comprises:
- obtaining a first value of the oscillation of interest;
- reducing or disabling an assistance of the power steering feature;
- obtaining a second value of the oscillation of interest after the assistance of the power steering feature has been reduced or disabled;
- assessing a difference between the first value and second value;
- and
- based on the difference between the first value and second value does not exceed a first threshold value classifying the power steering feature as a non-cause of the oscillation;
- based on the difference between the first value and second value exceeds the first threshold value and does not exceed a second threshold value, classifying the power steering feature as an intervening cause of the oscillation;
- based on the difference between the first value and second value exceeds the first threshold value and the second threshold value, classifying the power steering feature as a primary cause of the oscillation;
- and
- mitigating the oscillation of interest based on the classification of the cause.
10 more elements
A system, comprising:
- a processor;
- and
- memory or storage comprising an algorithm or computer instructions, which when executed by the processor, performs an operation comprising:
- identifying an oscillation at a steering wheel or steering column of a vehicle;
- upon determining that the oscillation exceeds an oscillation of interest threshold, identifying the oscillation as an oscillation of interest;
- classifying a cause of the oscillation of interest, wherein the cause of the oscillation of interest comprises a power steering feature, and wherein classifying the power steering feature comprises:
- obtaining a first value of the oscillation of interest;
- reducing or disabling an assistance of the power steering feature;
- obtaining a second value of the oscillation of interest after the assistance of the power steering feature has been reduced or disabled;
- assessing a difference between the first value and second value;
- and
- based on the difference between the first value and second value does not exceed a first threshold value classifying the power steering feature as a non-cause of the oscillation;
- based on the difference between the first value and second value exceeds the first threshold value and does not exceed a second threshold value, classifying the power steering feature as an intervening cause of the oscillation;
- based on the difference between the first value and second value exceeds the first threshold value and the second threshold value, classifying the power steering feature as a primary cause of the oscillation;
- and
- mitigating the oscillation of interest based on the classification of the cause.
13 more elements
A computer-readable storage medium having a computer-readable program code embodied therewith, the computer-readable program code executable by one or more computer processors to perform an operation comprising:
- identifying an oscillation at a steering wheel or steering column of a vehicle;
- upon determining that the oscillation exceeds an oscillation of interest threshold, identifying the oscillation as an oscillation of interest;
- classifying a cause of the oscillation of interest, wherein the cause of the oscillation of interest comprises a power steering feature, and wherein classifying the power steering feature comprises:
- obtaining a first value of the oscillation of interest;
- reducing or disabling an assistance of the power steering feature;
- obtaining a second value of the oscillation of interest after the assistance of the power steering feature has been reduced or disabled;
- assessing a difference between the first value and second value;
- and
- based on the difference between the first value and second value does not exceed a first threshold value classifying the power steering feature as a non-cause of the oscillation;
- based on the difference between the first value and second value exceeds the first threshold value and does not exceed a second threshold value, classifying the power steering feature as an intervening cause of the oscillation;
- based on the difference between the first value and second value exceeds the first threshold value and the second threshold value, classifying the power steering feature as a primary cause of the oscillation;
- and
- mitigating the oscillation of interest based on the classification of the cause.
10 more elements
Dependencies are inferred from the claim text.