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US 6,802,384 B2Granted
Powerstart logic for a traction control system
AssigneeRobert Bosch GmbH
InventorThomas Sauter
Life of this patent
Estimating the term…
Abstract
A device and a method for traction control for a vehicle, the setpoint engine torque being reduced to a pre-control value if one drive wheel exceeds a specified slip threshold, the rate time being increased if the vehicle acceleration or speed exceeds a threshold value, the setpoint engine torque being increased during the rate time as a function of the vehicle acceleration or speed, and regulation of the slipping wheel being initiated after the end of the rate time.
Claims5
A method for traction control for starting off a vehicle, comprising:
- reducing a setpoint engine torque abruptly to a pre-control value if a drive wheel exceeds a specified slip threshold, the drive wheel exceeding the specified slip threshold corresponding to a slipping wheel;
- initiating a regulation of the slipping wheel after an end of a rate time;
- determining one of a vehicle acceleration and a vehicle speed during the rate time;
- setting a prolonged rate time if one of the vehicle acceleration and the vehicle speed exceeds a specified threshold value;
- and
- increasing the setpoint engine torque during the prolonged rate time as a function of one of the vehicle acceleration and the vehicle speed.
3 more elements
A traction control system, comprising:
- an arrangement for detecting one of a vehicle acceleration and a vehicle speed;
- an arrangement for reducing abruptly a setpoint engine torque to a pre-control value if a drive wheel exceeds a specified slip threshold, the drive wheel exceeding the specified slip threshold corresponding to a slipping wheel;
- an arrangement for initiating a regulation of the slipping wheel after an end of a rate time;
- an arrangement for determining one of the vehicle acceleration and the vehicle speed during the rate time;
- an arrangement for setting a prolonged rate time if one of the vehicle acceleration and the vehicle speed exceeds a specified threshold value;
- and
- an arrangement for increasing the setpoint engine torque during the prolonged rate time as a function of the vehicle acceleration.
4 more elements
Dependencies are inferred from the claim text.