Magnetic angular position sensor

A magnetic position sensor for determining the angular position of a magnet on a rotatable component, comprising:

• at least one magnetic sensor for determining different vector components of a magnetic field of the magnet;
• and
• a memory having a look-up table stored therein that is populated with data representative of different angular positions of the magnet, the data representative of each angular position being correlated with data in the look-up table that is representative of the vector components that would be detected at that angular position by the at least one magnetic sensor;
• wherein the magnetic position sensor is configured to use the vector components determined by the magnetic sensor and logic to determine the angular position of the magnet from the look-up table;
• wherein the look-up table is populated with a plurality of data pairs, each of which comprises a ratio of the different vector components of the magnetic field that would be detected with a failure of the magnetic position sensor, and data indicating that the magnetic position sensor has a failure.

A magnetic position sensor for determining the angular position of a magnet on a rotatable component, comprising:

• at least one magnetic sensor for determining different vector components of a magnetic field of the magnet;
• and
• a memory having a look-up table stored therein that is populated with data representative of different angular positions of the magnet, the data representative of each angular position being correlated with data in the look-up table that is representative of the vector components that would be detected at that angular position by the at least one magnetic sensor;
• wherein the magnetic position sensor is configured to use the vector components determined by the magnetic sensor and logic to determine the angular position of the magnet from the look-up table;
• wherein the look-up table is populated with multiple data triplets, each data triplet comprising an angular position of the magnet and the different vector components of the magnetic field that would be detected at that angular position by the at least one magnetic sensor;
• and
• wherein the magnetic position sensor is configured to use the different vector components of the magnetic field determined by the at least one magnetic sensor and said logic to look-up the corresponding angular position in the look-up table.