Driveline input torque control system

A powertrain control system included in a vehicle having an internal combustion engine, the powertrain control system comprising:

• at least one electronic sensor configured to output a signal indicative of at least one operating parameter of the vehicle;
• an electronic vehicle scenario detection module including a computer processor configured to determine a current vehicle scenario of the vehicle based on the at least one operating parameter;
• and
• torque limiting module including a computer processor configured to actively determine a first active skid-torque value of the first driveline component in real-time based on the current vehicle scenario, and a second active skid-torque value of the second driveline component in real-time based on the current vehicle scenario,
• wherein the control module actively varies a first skid-torque threshold value of the first driveline component based on the current vehicle scenario, and actively varies a second skid-torque threshold value of the second driveline component independently from the first skid-torque threshold value based on the current vehicle scenario, and compares the first and second active skid-torque values to the first and second skid-torque threshold values, respectively, and
• generates a first torque limiting control signal in response to the first active skid-torque value exceeding the first skid-torque threshold value so as to limit a first torque input to the first driveline component, and a second torque limiting control signal in response to the second active skid-torque value exceeding the second skid-torque threshold value so as to limit a second torque input to the second driveline component independently from the first driveline component.

A method of controlling a powertrain system included in a vehicle, the method comprising:

• generating torque via an engine to drive the vehicle;
• transferring the torque, via a transmission, to a first driveline component of the vehicle and a second driveline component of the vehicle different from the first driveline component;
• outputting an electronic signal indicating at least one operating parameter of the vehicle;
• determining a current vehicle scenario of the vehicle based on the at least one operating parameter;
• actively determining a first active skid-torque value of the first driveline component in real-time based on the current vehicle scenario, and actively determining a second active skid-torque value of the second driveline component in real-time based on the current vehicle scenario;
• actively varying a first skid-torque threshold value of the first driveline component based on the current vehicle scenario, and actively varying a second skid-torque threshold value of the second driveline component independently from the first skid-torque threshold value based on the current vehicle scenario;
• comparing the first and second active skid-torque values to the first and second skid-torque threshold values, respectively;
• generating a first torque limiting control signal in response to the first active skid-torque value exceeding the first skid-torque threshold value so as to limit a first torque input to the first driveline component, and
• generating a second torque limiting control signal in response to the second active skid-torque value exceeding the second skid-torque threshold value so as to limit a second torque input to the second driveline component independently from the first driveline component.