Traction control system and method for a vehicle
First Claim
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1. A method for controlling a powertrain of a vehicle with wheels on a road having a grade, the vehicle having a pedal actuated by a driver, the method comprising:
- generating powertrain torque transmitted to the wheels in a first relation to actuation of the pedal by the driver during a first condition where said transmitted torque causes said wheels to slip relative to a surface;
overriding said driver actuated powertrain torque to control said slip; and
during a second condition after said first condition, generating powertrain torque transmitted to the wheels in a second relation to actuation of the pedal by the driver, where a duration of said second condition varies as the road grade varies.
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Abstract
In one example, a system for a vehicle is shown. The system includes a traction control system configured to adjust powertrain output to reduce wheel slip and a powertrain controller configured to control powertrain output based on actuation of a pedal of the vehicle by the driver, where a relationship between powertrain output and pedal actuation is adjusted in response to at least one of road grade and direction of wheel spin.
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Citations
20 Claims
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1. A method for controlling a powertrain of a vehicle with wheels on a road having a grade, the vehicle having a pedal actuated by a driver, the method comprising:
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generating powertrain torque transmitted to the wheels in a first relation to actuation of the pedal by the driver during a first condition where said transmitted torque causes said wheels to slip relative to a surface;
overriding said driver actuated powertrain torque to control said slip; and
during a second condition after said first condition, generating powertrain torque transmitted to the wheels in a second relation to actuation of the pedal by the driver, where a duration of said second condition varies as the road grade varies. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for controlling a powertrain of a vehicle with wheels on a road having a grade, the vehicle having a pedal actuated by a driver, the method comprising:
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generating powertrain torque transmitted to the wheels in a first relation to actuation of the pedal by the driver during a first condition where said transmitted torque causes said wheels to slip relative to a surface;
overriding said driver actuated powertrain torque to control said slip; and
during a second condition after said first condition, generating powertrain torque transmitted to the wheels in a second relation to actuation of the pedal by the driver, where a duration of said second condition varies depending on a direction of wheel rotation. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A system for a vehicle, comprising:
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a traction control system configured to adjust powertrain output to reduce wheel slip;
a powertrain controller configured to control powertrain output based on actuation of a pedal of the vehicle by the driver, where a relationship between powertrain output and pedal actuation is adjusted in response to at least one of road grade and direction of wheel spin. - View Dependent Claims (19, 20)
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Specification