Method and system for a vehicle clutch performance detection system using clutch torque and clutch pressure

A system for controlling a vehicle transmission system having a clutch system, the system comprising:

• one or more computing devices configured to:
• generate a torque-pressure (T-P) gain deviation based on a transfer function (T-F) characteristic and a nominal (N-T-F) characteristic for the clutch system, wherein the T-F characteristic includes a set of torque values and a set of pressure values, and the N-T-F characteristic includes a set of nominal pressure values and a set of nominal torque values;
• generate a pressure magnitude deviation based on the set of pressure values and the set of nominal pressure values;
• determine whether a T-F characteristic deviates from the N-T-F characteristic based on the T-P gain deviation and the pressure magnitude deviation;
• and
• issue a notification regarding the T-F characteristic to perform a corrective action related to the clutch system in response to the T-F characteristic deviating from the N-T-F characteristic.

A system for controlling a vehicle transmission system having a clutch system, the system comprising:

• one or more computing devices configured to:
• generate a torque-pressure (T-P) gain deviation based on transfer function (T-F) characteristic and a nominal (N-T-F) characteristic the clutch system, wherein the T-F characteristic includes a set of torque values and a set of pressure values, and the N-T-F characteristic includes a set of nominal pressure values and a set of nominal torque values;
• generate a pressure magnitude deviation based on the set of pressure values and the set of nominal pressure values;
• detect the T-F characteristic as a deviating T-F characteristic that departs from the N-T-F characteristic based on the T-P gain deviation and the pressure magnitude deviation;
• and
• adjust a transmission control algorithm to have the clutch system operate within the N-T-F characteristic in response to the T-F characteristic being identified as deviating.