Method for synchronizing the zero position of pedal position sensors
AssigneeDaimlerChrysler AG
InventorsWeijia Cui, Gerald L Holbrook, Binqiu Xu, Gary K Lowe
Life of this patent
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Abstract
A method for synchronizing a plurality of pedal position sensors in a motor vehicle. A series of voltages are accumulated from each of a plurality of pedal position sensors. Representative voltages are determined from the series of voltages. The representative voltages are assigned to linear relationships from which an offset is determined.
Claims23
A method for establishing a common reference point of a plurality of position sensors, said method comprising the steps of:
- measuring a first and second voltage of a first and second position sensor respectively at a first time;
- measuring a third and fourth voltage of said first and second position sensor respectively at a second time;
- determining a position sensor offset from said first, second, third and fourth voltages;
- and
- correcting a position sensor voltage with said position sensor offset.
A method for establishing a common reference point of a plurality of position sensors, said method comprising the steps of:
- measuring a first voltage value from a first and second position sensor;
- calculating a relationship between said first voltages;
- measuring a second voltage from a first and second position sensor;
- calculating a relationship between said second voltages;
- responsive to the relationship between said first voltages and said second voltages, determining a proper offset;
- and
- applying said offset to one of said first and second position sensor to establish the common reference point.
A method for establishing a common reference point of a plurality of position sensors, said method comprising the steps of:
- measuring a first and second plurality of voltages from a first and second position sensor respectively;
- assigning a first and second representative voltage to said first and second plurality of first and second voltages;
- providing a relationship between said first and second representative voltages;
- and
- adapting said relationship to an accumulation of first and second representative voltages to determine the common reference point between said first and second position sensors.
Dependencies are inferred from the claim text.