Method For Processing A Temperature Sensor Signal
AssigneeKohler Co.
InventorVijit Paul Jayasheela
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Abstract
A method for processes a pulse width modulated signal from a temperature sensor, wherein the signal varies non-linearly and non-exponentially with changes in temperature. An exponential equation is defined that is closely fitted to the relationship between a characteristic of the signal and the temperature. The signal from the sensor is processed by measuring the characteristic to produce a sensor value. That sensor value then is employed to solve the exponential equation which produces a value for the temperature.
Claims20
A method for processing a signal from a sensor on an apparatus, wherein the signal has a characteristic that varies non-linearly and non-exponentially with changes in a parameter being sensed, said method comprising:
- defining an exponential equation that specifies a relationship between the signal from the sensor and the parameter being sensed;
- receiving the signal from the sensor;
- measuring the characteristic of the signal to produce a sensor value;
- and
- using the sensor value to solve an exponential equation which produces a value for the parameter.
A method for processing a signal from a temperature sensor on an engine, wherein the signal has a characteristic that varies non-linearly and non-exponentially with engine temperature changes, said method comprising:
- defining an exponential equation that specifies a relationship between the signal from the temperature sensor and the engine temperature;
- receiving the signal from the temperature sensor;
- measuring the characteristic of the signal to produce a sensor value;
- and
- using the sensor value to solve an exponential equation which produces a value for the engine temperature.
A method for processing a pulse width modulated signal from a temperature sensor on an engine, wherein a portion of the signal has a duration that varies non-linearly and non-exponentially with engine temperature changes, said method comprising:
- defining an exponential equation that specifies a relationship between variation of the signal from the temperature sensor and the engine temperature;
- receiving the signal from the temperature sensor;
- measuring the duration the portion of the signal to produce a sensor value;
- and
- using the sensor value to solve an exponential equation which produces a value for the engine temperature.
Dependencies are inferred from the claim text.