Pre-emptive output torque reduction for a transient speed event and prioritization of inertia
AssigneeGM Global Technology Operations LLC
InventorsSean W. McGrogan, Anthony H. Heap
Life of this patent
Estimating the term…
Abstract
A method to control an output torque of a powertrain in response to an incipient transient speed event within the powertrain includes determining an incipient transient speed event, determining a maximum output torque capability profile based upon the incipient transient speed event, determining a minimum value of the maximum output torque capability profile, and limiting the output torque to not greater than the minimum value of the maximum output torque capability profile until the incipient transient speed event is concluded.
Claims20
System to control an output torque of a powertrain in response to an incipient transient speed event within the powertrain, comprising:
- a control module configured to:
- determine the incipient transient speed event;
- determine a maximum output torque capability profile based upon the incipient transient speed event;
- determine a minimum value of the maximum output torque capability profile;
- determine a minimum output torque capability profile based upon the incipient transient speed event;
- determine a maximum value of the minimum output torque capability profile;
- and
- limit the output torque to between the minimum value of the maximum output torque capability profile and the maximum value of the minimum output torque capability profile until the incipient transient speed event is concluded.
Control module implemented method to control an output torque of a powertrain in response to an incipient transient speed event within the powertrain, the method comprising:
- determining, by a controller, an incipient transient speed event;
- determining, by a controller, a maximum output torque capability profile based upon the incipient transient speed event;
- determining, by a controller, a minimum value of the maximum output torque capability profile;
- and
- limiting, by a controller, the output torque to not greater than the minimum value of the maximum output torque capability profile until the incipient transient speed event is concluded.
Dependencies are inferred from the claim text.