Patent ID: 8342998

Claim:
In a multiple-ratio automatic transmission for an automotive vehicle powertrain, the automatic transmission including a controller, a transmission housing, an input torque source, a torque output member, gearing defining multiple torque flow paths from the input torque source to the torque output member and a pressure actuated torque establishing element for establishing a gear configuration with a low speed ratio or a gear configuration with a higher speed ratio during a ratio upshift event having a preparatory phase, a torque phase and an inertia phase, a load sensor assembly for measuring an amount of torque transmitted through the torque establishing element comprising: a core mounted on the transmission housing; and a load sensor mounted on the core and positioned against a portion of the torque establishing element whereby a portion of the amount of torque transmitted through the torque establishing element travels through the load sensor and is measured by the load sensor assembly, wherein a signal representative of the amount of torque transmitted through the torque establishing element is sent to the controller from the load sensor.