Patent ID: 8494729

Claim:
System for monitoring torque in a powertrain including a transmission coupled to a driveline, comprising: a first rotational sensor monitoring rotation of the driveline at a first location; a second rotational sensor monitoring rotation of the driveline at a second location; each of said first and second rotational sensors providing a respective positional identifier indexed to the driveline; a controller monitoring signals from the first rotational sensor and the second rotational sensor; determining a positional relationship between the first and second locations using the positional identifiers, wherein determining the positional relationship between the first and second locations using positional identifiers comprises indexing the positional identifiers located on the first and second rotational sensors for assembly on shaft elements of the driveline; deriving a twist angle from the positional relationship between the first and second rotational sensors; calculating a magnitude of driveline torque corresponding to the twist angle; and controlling the vehicular powertrain according to the calculated magnitude of driveline torque.