Methods and systems for driver identification

A method of aligning a mobile device having an accelerometer, a gyroscope, and an alignment axis to a reference frame of a vehicle, the method comprising:

• placing the mobile device in the vehicle;
• obtaining data from the accelerometer of the mobile device;
• detecting, one or more braking events and one or more forward acceleration events during a driving event;
• determining, using the accelerometer of the mobile device, a direction of travel of the vehicle with respect to the reference frame of the vehicle;
• obtain angular measurement data from the gyroscope of the mobile device;
• and
• aligning, using the angular measurement data, the alignment axis of the mobile device to the reference frame of the vehicle.

A method of determining a position of a mobile device in a vehicle, the method comprising:

• obtaining accelerometer data collected using a accelerometer in the mobile device;
• obtaining angular orientation data collected using a gyroscope in the mobile device;
• determining a start time of a driving event;
• determining an entry side for the mobile device prior to the driving event;
• detecting an acceleration event;
• aligning the mobile device to a reference frame of the vehicle;
• determining a front/back location of the mobile device;
• detecting a braking event;
• determining an end time of the driving event;
• determining an exit side for the mobile device after the driving event;
• and
• determining the position of the mobile device during at least a portion of the driving event.