Robert Boschgmbh

Knorr-bremse Systeme Fuer Nutzfahrzeuge Gmbh

Herbert Schramm

Robert H Entenmann

Siegfried Rohde

Jorg Bonitz

Rochus Knab

Falk Hecker

Klaus-Dieter Leimbach

Ian C Faye

Oliver Jundt

Gabriel Wetzel

Dieter Worner

Matthias Horn

Peter Dominke

Bernhard Miller

Stefan Hummel

Walter Viess

Werner Kopper

Rudiger Frank

Hubert Moller

Werner Stumpe

Dieter Woerner

Ulrich Guecker

Bert Wurst

Jurgen Brauninger

Thomas Kuttner

Dieter Seher

Juergen Wrede

Andreas Ziegler

Reiner Emig

Andreas Arlt

Gunther Schmidt

Josef Wirz

Volker Kadelbach

Reinhard Aures

Claus Beyer

Wolfgang Flogel, Deceased

Peter Kozel

A method for increasing the driving stability of a vehicle, particularly of a commercial vehicle, which counteracts a vehicle instability by a control intervention in a control system operating the drive and/or the brakes of the vehicle, in which the control intervention occurs as a function of the ratio between the height of the center of gravity of the vehicle and a spring constant of the vehicle suspension.

Method for increasing the driving stability of a vehicle

A steering device for vehicles having a pair of wheels which can be steered freely as a function of the current driving state of the vehicle or whose steered position can be locked by an electronically actuable locking device, having an electronic control device and having sensors which are connected to the electronic control device and have the purpose of monitoring current driving state values, with the electronic control device actuating the locking device when a minimum velocity of the vehicle is exceeded, in such a way that the steered position of the pair of wheels is locked, characterized in that driving state values which characterize critical driving situations are additionally stored in the electronic control device, in which the steered position of the pair of wheels is locked in critical driving situations, and in which, after a critical driving situation, the locking device does not release the pair of wheels again until predefined critical driving state values are undershot at least for a predefined period of time.

Steering device for vehicles having a pair of wheels which can be steered freely by means of lateral forces

A brake regulating system particularly suitable for stabilizing the motion of a commercial vehicle is described, in which a control unit outputs, as a function of a number of input variables, a predefined manipulated variable for the brake pressure of each wheel of a commercial vehicle and/or a predefined manipulated variable for an output variable of the drive engine. For detecting the input variables, the input of the control unit is connected to a steering angle sensor for detecting a steering angle predetermined by the driver, to a sensor system for determining the yaw rate of the commercial vehicle, and to a first acceleration sensor for detecting the transverse acceleration of the commercial vehicle.

Brake regulating system for stabilizing the motion of a commercial vehicle

A method and apparatus for stabilizing a vehicle in the presence of a tilt tendency are described. For this purpose, for at least one wheel, a variable quantitatively describing a wheel behavior of at least one wheel is determined. At least as a function of the variable that quantitatively describes the wheel behavior determined for the at least one wheel, a determination is made as to whether a tendency to tilt about a vehicle axis oriented in the longitudinal direction of the vehicle exists.

Method and apparatus for stabilizing a vehicle in the presence of a tilt tendency

The invention relates to an electronically regulated brake system comprising a central control device (Z ; Z ) and at least one pressure control valve (A). According to the invention, the electronically regulated brake system additionally includes at least one pressure regulating valve (B) and/or at least one pressure regulating module (C).

Electronically regulated brake system

A method for recognizing a trailer or semitrailer of a motor vehicle which includes activating at least one brake light of the trailer or semitrailer, independently of the driver, measuring a current flowing in a line assigned to the brake light of the trailer or semitrailer and ascertaining the presence or the absence of a trailer or semitrailer on the basis of the measured current.

Method and device for recognizing a trailer or semitrailer of a motor vehicle

A device for stabilizing a vehicle is described. For this purpose, the device includes first determination device with which at least two vehicle motion quantities describing the vehicle motion, in particular in the direction transverse to the vehicle, are determined. Furthermore, the device includes second determination device with which a characteristic quantity is determined for each of the vehicle motion quantities. The second determination includes an adjustment device with the help of which the variation over time of the characteristic quantities is adjusted to the vehicle's behavior. In addition, the device device includes a control device with which intervention quantities are determined at least as a function of the vehicle motion quantities and the characteristic quantities, which are supplied to an actuator system for performing at least brake interventions and/or engine interventions with which the vehicle is stabilized.

Device and method for stabilizing a vehicle

A method for stabilizing a vehicle in particular to prevent overturning, in which a strategy is selected from at least two different strategies as a function of a quantity describing or corresponding to whether an overturn tendency about a vehicle axis oriented in the longitudinal direction of the vehicle exists, and which may be determined at least as a function of a quantity describing or corresponding to the wheel behavior of at least one wheel, and which may also be determined a function of a comparison which is carried out as a function of a quantity describing or corresponding to the lateral dynamics of the vehicle and of a characteristic value that is determined as a function of a quantity describing or corresponding to the instantaneous friction conditions.

Method and device for stabilizing a motor vehicle in order to prevent it from rolling over

A method for stabilizing a vehicle to avoid at least one of a vehicle rolling over about a vehicle axis oriented in the longitudinal direction of the vehicle and the vehicle sliding in the transverse direction. The method determines at least one of a torsion variable that corresponds to how the vehicle behaves in reaction to a force acting on the vehicle about the vehicle axis oriented in the vehicle's longitudinal direction, and a load-shift variable that corresponds to how the vehicle load behaves in reaction to a force acting upon the vehicle. The method determines a vehicle speed and also determines at least one threshold value for the vehicle speed based on the torsion variable and the load-shift variable. The vehicle speed and the at least one threshold value are then compared, and interventions (or measures) are taken to stabilize the vehicle based on the comparison.

Process and device for stabilizing a vehicle on the basis of a determined torsional value

A method and an apparatus relate to the detection of a tilt tendency of a vehicle about a vehicle axis oriented in the longitudinal direction of the vehicle. For this purpose, for at least one wheel, a variable describing the wheel rotation speed and at least one variable representing the transverse dynamics of the vehicle are ascertained. As a function of one of the variables representing the transverse dynamics of the vehicle, braking torques and/or drive torques are briefly generated and/or modified at at least one wheel. While the braking torques and/or drive torques at the at least one wheel are being briefly generated and/or modified, and/or after they have been briefly generated and/or modified, a variable which quantitatively describes the wheel behavior is determined for that at least one wheel, as a function of the variable describing the wheel rotation speed of that wheel. As a function of that variable quantitatively describing the wheel behavior of that wheel, a determination is made as to whether there is a tilt tendency of the vehicle about a vehicle axis oriented in the longitudinal direction of the vehicle.

Method and device for detecting motor vehicle tilt

A method for stabilizing a vehicle that avoids one of a vehicle rolling over with respect to a vehicle axis oriented in the longitudinal direction of the vehicle, and the vehicle skidding in a transverse direction. The method determines a vehicle speed and at least two limit values for the vehicle speed, and selects one of the limit values as a reference quantity. In particular, the limit value with the smaller value may be selected as the reference quantity. The method also compares a speed quantity and the reference quantity, and implements measures to stabilize the vehicle based on the comparison. In particular, if the speed quantity is greater than the reference quantity, then the vehicle speed is reduced by intervening in at least one of a retarder operation, an engine operation and a braking operation until the speed quantity is reduced below the reference quantity.

Process and device for stabilizing a vehicle depending on the speed of the vehicle

When at least one drive wheel is showing a tendency to spin, at least the torque of the drive unit of the vehicle is influenced so as to reduce the tendency to spin. The tendency to spin is recognized when the slip of at least one of the drive wheels exceeds a predetermined desired value, where this desired value is adjustable as a function of at least one operating variable. This minimum of one operating variable is associated with the drive power called for by the driver, and is based on at least one of gas pedal position and engine rpm. The desired slip is increased in the range of higher power demands to improve the traction.

Method and apparatus for drive slip control

A system for controlling a positioning unit in a motor vehicle includes various control units that influence the positioning unit coupled thereto. A drive slip control and an automatic transmission control both supply a control signal. Yet another control signal is dependent upon a driver request signal. For a period of time, the control signal from the automatic transmission control takes precedence over the other control signals.

System for the open-loop control of a motor vehicle

The brake system having an electrically controllable brake apparatus of a trailer, the brake apparatus includes a control unit which is connected via electrical lines to an electrical energy source of a tractor. In braking, electrical currents are brought about of such a magnitude as to cause severe voltage drops in long lines that the functional safety of the brake apparatus may be threatened. The brake apparatus therefore has an electrical energy storage device disposed on the trailer, which can be charged by an energy source of the tractor and can be discharged upon triggering of the brake apparatus of the trailer. Voltage drops in the relatively short lines between the energy storage device and the control unit are therefore minimum. The lines between the electrical energy source of the tractor and the energy storage device of the trailer are charged by only low charging currents. The voltage drop is therefore low despite the long line length.

Brake system for vehicle combinations

A drive slip regulating system is described, in which the speeds of the drive wheels are compared with one another and as a function of the deviation .DELTA. v a set-point brake pressure is calculated, with which the excessively spinning wheel is to be braked. In the pulsed furnishing of the brake pressure, the valve opening times are calculated, taking the pressure buildup function into account, in such a way that the actual brake pressure corresponds to the set-point brake pressure.

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Leonberg, Germany

Herbert Schramm