Method to initiate, manage, and adapt vehicle motion at low speeds in a wet clutch dual clutch transmission
AssigneeEaton Corporation
InventorsSarika Marfatia, Thomas R. Connolly, Anthony Stasik, Tim Sandy, Frederic Boissinot, Graeme A. Jackson
Life of this patent
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Abstract
A transmission control device for a vehicle that includes a controller configured to calculate a first transmission torque based on a first set of inputs, calculate a second transmission torque based on a second set of inputs, determine whether a brake pedal is applied, and apply either the first transmission torque or the second transmission torque based on whether the brake is applied.
Claims20
A transmission control device for a vehicle, comprising a controller configured to:
- if the vehicle is stationary, calculate a first transmission torque that is an urge-to-move torque based on a first set of inputs;
- if the vehicle is in motion, calculate a second transmission torque that is a creep torque based on a second set of inputs;
- determine whether a brake pedal is applied;
- engage a wet clutch;
- and
- apply either the first transmission torque or the second transmission torque through the engaged wet clutch based on whether the brake is applied.
A method for controlling a transmission for a vehicle, the method comprising:
- calculating a first transmission torque that is an urge-to-move torque, if the vehicle is stationary, based on a first set of inputs;
- calculating a second transmission torque that is a creep torque, if the vehicle is in motion, based on a second set of inputs;
- determining whether a brake pedal is applied;
- engaging a wet clutch;
- and
- applying either the first transmission torque or the second transmission torque through the engaged wet clutch based on whether the brake is applied.
A vehicle, comprising:
- an engine;
- a wet clutch;
- a transmission;
- and
- a transmission controller configured to:
- calculate a first transmission torque that is an urge-to-move torque based on a first set of inputs, and if the vehicle is stationary;
- calculate a second transmission torque that is a creep torque based on a second set of inputs, and if the vehicle is in motion;
- determine whether a brake pedal of the vehicle is applied;
- and
- apply either the first transmission torque or the second transmission torque through the engaged wet clutch based on whether the brake pedal is applied.
Dependencies are inferred from the claim text.