Method and device for controlling the slippage at at least one vehicle wheel in closed loop
AssigneeRobert Bosch GmbH
InventorNorbert Polzin
Life of this patent
Estimating the term…
Abstract
A method and a device for controlling the slippage at at least one vehicle wheel in a closed loop. In order to reduce an unacceptable slippage at at least one wheel, the braking force at this wheel is influenced and wheel vibrations are determined. Furthermore, the tendency of the characteristic of the slippage is ascertained during a vibration, and the braking force is influenced as a function of the ascertained tendency.
Claims13
A method for controlling a slippage occurring at at least one wheel of a vehicle of a vehicle in a closed loop to reduce the slippage at the at least one wheel, comprising the steps of:
- ascertaining a vibration at the at least one wheel;
- ascertaining a tendency of a characteristic of the slippage during the vibration;
- and
- influencing a braking force as a function of the ascertained tendency;
- wherein the tendency of the characteristic of the slippage is ascertained by comparing a subsequent slippage value to a previous slippage value.
A device for controlling a slippage occurring at at least one wheel of a vehicle in a closed loop, comprising:
- a control unit for reducing the slippage and including:
- an arrangement for ascertaining a vibration at the at least one wheel,
- an arrangement for ascertaining a tendency of a characteristic of the slippage during the vibration at the at least one wheel, and
- an arrangement for influencing a braking force as a function of the ascertained tendency;
- wherein the tendency of the characteristic of the slippage is ascertained by comparing a subsequent previous slippage value to a previous slippage value.
A method for controlling and reducing slippage of at least one wheel of a vehicle, the method comprising the steps of:
- determining a slippage parameter;
- determining an acceleration parameter;
- activating a timer for a period;
- ascertaining a vibrational state of the slippage parameter based on the slippage parameter and the acceleration parameter during the period;
- and
- modifying a brake pressure during the vibrational state.
A system for controlling and reducing slippage of at least one wheel of a vehicle, the system comprising:
- means for determining a slippage parameter;
- means for determining an acceleration parameter;
- means for activating a timer for a period;
- means for ascertaining a vibrational state of the slippage parameter based on the slippage parameter and the acceleration parameter during the period;
- and
- means for modifying a brake pressure during the vibrational state.
Dependencies are inferred from the claim text.