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Method and device for stabilizing a vehicle equipped with a slip-controlled brake system
| Details |
Inventors: Koch, Matthaeus; Ullmann, Steffen; Poggenburg, Ruediger; Lah, Oliver; Diehle, Stefan;
Assignee: Robert Bosch GmbH (Stuttgart, DE)
Primary Examiner: Camby; Richard M.
Assistant Examiner:
Attorney, Agent or Firm: Kenyon & Kenyon
A method of stabilizing a vehicle equipped with a slip-controlled brake system is described. This is done by determining the wheel speeds of the individual wheels of the vehicle. For at least one wheel, a wheel speed setpoint is determined. For the at least one wheel, a deviation quantity describing the deviation between the wheel speed determined for that wheel and the setpoint is determined. To stabilize the vehicle, actuators assigned to the at least one wheel are activated as a function of this deviation quantity. |
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DETAILED DESCRIPTION The present invention provides a method and a device using an alternative controlled variable other than wheel slip so that measures to influence the wheels can be implemented on the basis of this alternative controlled variable.
The present invention provides a method for stabilizing a vehicle equipped with a slip-controlled brake system.
In this method, wheel speeds are determined for the individual wheels of the vehicle.
As an alternative to the slip, as a controlled variable, the wheel speed is used in the method according to the present invention.
For this reason, a setpoint value for the wheel speed is determined for at least one wheel.
A deviation quantity describing the deviation between the wheel speed determined for this wheel, and the setpoint value is determined for the at least one wheel.
To stabilize the vehicle, the actuators assigned to the at least one wheel are controlled as a function of this deviation quantity.
Slip is a relative quantity; in other words, if slip is controlled by activating the actuators assigned to the wheel, then the wheel speed that will result after activating the actuators is not always known in advance.
Wheel speed, however, is an absolute quantity.
If wheel speed is regulated by activating the actuators assigned to the wheel, then the wheel speed which results after activating the actuators can be set at a desired level.
Thus when traveling along curves, for example, the wheel speed resulting after activating the actuators can be adapted to the actual curve turned.
The method and device according to the present invention are to be used in vehicles equipped with an anti-lock control unit.
This is not a restriction on the scope.
Use in vehicles equipped with traction control or a form of slip control such as that described in the above-mentioned ATZ article is also possible.
Vehicles may also tend to oversteer during turning even in the partial braking range.
If a vehicle is equipped with a brake slip control system, it can be stabilized with the help of the method according to the present invention
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Navigation and GPS 
