Robert Boschgmbh

Zf Lenksysteme Gmbh

Peter Dominke

Klaus-Dieter Leimbach

Werner Harter

Chi-Thuan Cao

Herbert Lohner

Wolfgang Pfeiffer

Claus Beyer

Christian Grosse

Torsten Bertram

Wolfgang Hermsen

Peter Blessing

Holger Bellmann

Asmus Volkart

Jens-Olaf Mueller

Juergen Schuele

Herbert Schramm

Gabriel Wetzel

Jens Hafermalz

Eberhard Sonntag

Wilfried Leutner

Mathias Hommel

Helmut Knoedler

Bo Yuan

Bernd Mueller

Klaus Ries-Mueller

Willi Nagel

Werner Hess

Ulrich Gottwick

Karl-Heinz Senger

Peter Ahner

Helmut Wiss

Peter Baeuerle

Ngoc-Thach Nguyen

Helmut Janetzke

Karl-Josef Weiss

Klaus-Michael Mayer

Thorsten Allgeier

Jens Fiedler

Armin Verhagen

Martin Pfau

Ansgar Traechtler

Werner Weber

Thomas Lindenkreuz

Frank Sager

Elmar Dilger

Sylvia Futterer

Thomas Loeffler

Carlos Atoche-Juarez

Thomas Sauer

Heinz-Jurgen Koch-Ducker

Andreas Zierhut

Edgar Bernardi

Joachim Bielesch

Ulf Herlin

Hans-Peter Stumpp

Helmut Knödler

Juergen Schuelle

Klauss-Dieter Leimbach

Matthias Haussmann

A method for controlling a braking system of a vehicle is described, in which the braking system has at least a first control unit for controlling a first braking force on at least one wheel brake of a wheel of the vehicle, and an accumulator for receiving a pressurized medium, the method including generating the first braking force by at least one of a first hydraulic component and a first pneumatic component, filling the accumulator with the medium independently of the at least one of the first hydraulic component and the first pneumatic components via a relative movement between at least one wheel and a vehicle body, and generating a second braking force at predefinable times on the at least one wheel brake as a function of the filling of the accumulator.

Chassis-supported secondary braking system or emergency braking system

A steer-by-wire steering system has a steering wheel actuator and a braking device that acts on the steering column. The braking device is activated when the vehicle steering wheel is to be blocked or at least sharply braked, such as when the steering stop is reached or a wheel goes over the edge of a curb. The braking device functions like a switchable freewheel.

Clutch for steer-by-wire steering system

A steer-by-wire steering system is proposed, having a steering wheel actuator and a braking device that acts on the steering column (). The braking device is activated when the vehicle steering wheel is to be blocked or at least sharply braked, such as when the steering stop is reached or a wheel goes over the edge of a curb. The braking device functions like a switchable freewheel.

Coupling for a steer-by-wire steering system

A device for controlling a steer-by-wire steering system in a vehicle, in which redundantly generated sensor signals for regulating a steering motor and for a feedback actuator that transfers the restoring torques from the road to the driver via the steering wheel are received by a control device and plausibility checks of the sensor signals are performed therein and in an operatively associated monitoring module. Microcomputer module and monitoring module monitor each other reciprocally. An auxiliary level for the SbW steering system is monitored by the control device which, in the case of error, switches to this auxiliary level or a mechanical auxiliary level. To further increase safety, the steering wheel motor is triggered via control signals for its phase currents and by a steering wheel motor enable signal, and the steering motor is triggered via control signals for its phase currents and via a steering motor enable signal.

Method for controlling a steer-by-wire system

A control unit, for controlling safety-critical applications, includes a microcomputer, a monitoring unit (check unit), and peripheral circuits (input/output), and in which, to improve the reliability of the error detection for such control units, and to expand the detection to additional error types, the monitoring unit includes a first apparatus, arrangement or structure for measuring the quiescent current of the microcomputer; at least one quiescent current handshake line for controlling the measurement of the quiescent current running between the first apparatus, arrangement or structure of the monitoring unit and the microcomputer; the monitoring unit including a second apparatus, arrangement or structure for applying a test data input signal to the microcomputer, for processing the test data input signal, and for comparing the corresponding test data output signal of the microcomputer to the corresponding test data output signal of the monitoring unit; and at least one test data signal transmission line running between the second apparatus, arrangement or structure of the monitoring unit and the microcomputer.

Control unit for controlling safety-critical applications

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

A method for operating a clutch ( ), whose clutch slip (s) is adjusted to a setpoint value (s ) with the aid of a manipulated variable, should allow a clutch to be controlled in a particularly reliable and stable manner. To this end, the present invention provides for a slip value only being permitted to be a setpoint value (s ), when the derivative of the friction coefficient/slip characteristic at this slip value exceeds a specifiable limiting value. In particular, the setpoint value (s ) is selected as a function of a number of operating parameters, inside a range of permissible setpoint values (s ); the slip value, at which the derivative of the friction coefficient/slip characteristic falls below a specifiable limiting value, being selected as an upper limit (G) of the range of permissible setpoint values (s ).

Method for operating a clutch and control device for implementing the method

A method for steering a vehicle and a steering system are provided, in which a variable torque support of the driver's steering wish and intervention in the position of the steered wheels triggered by a driving dynamics regulator are implementable without mutually interfering with one another. In addition, further additional functions, such as the lane guidance system of the vehicle, may be integrated into a steering system easily and either with or without compensation of the steering feel at the steering wheel.

Method for steering a vehicle using a power-assisted steering system

Device and method for determining a wheel braking pressure and/or an admission pressure in a braking system in which pressure medium is introduced from a reservoir for the pressure medium having an admission pressure into a wheel brake through at least one shutoff device for inlet and/or outlet and/or passage of a pressure medium, it being possible to remove pressure medium from the wheel brake through at least one means delivering the pressure medium. In so doing, a pressure quantity representing the admission pressure is estimated, at least one operating state of at least one actuator in the braking system is detected and the wheel braking pressure is estimated as a function of the estimated admission pressure and the detected operating states.

Method and device for determining the pressure in brake systems

A steering system for a vehicle, having a steering wheel, a steering gear and a steering module, disposed between them, for superimposed steering engagement by a controlled electric motor. The electric motor has an input shaft connected to the steering wheel and an output shaft connected to the steering gear. For the sake of structurally simplifying the steering module, the electric motor is in direct engagement, in line with a clutch that can be engaged and disengaged, with the input shaft via a first gear, and the electric motor is in direct engagement with the output shaft via a second gear.

Steering system for a vehicle

The invention concerns a system for automatic following guidance, particularly for heavy-traffic automatic following guidance, of a motor vehicle ( ), designed to ease the burden on the driver in heavy-traffic situations both by taking over lateral guidance by means of an automatic steering regulation system and by maintaining a set distance from a leading vehicle. The latter function requires an adaptive cruise and braking regulation system with &ldquo;stop&rdquo; and &ldquo;go&rdquo; function. According to the invention, selection and decision means ( ) are provided that select both the regulating parameters and the types of controllers &lsqb;sic&rsqb;, e.g., following guidance of the motor vehicle ( ) on the basis of lane markings recognized by means of a video camera or on the basis of a recognized leading vehicle. The system is divided into hierarchical levels I-IV, the driver always being in the monitoring and adaptation loop assigned to the top level IV of the hierarchy, so that he has the highest priority and can override the system at any time.

Automatic following guidance system for motor vehicles

A method for distributing the braking force between the front and rear axles, pressure is built up and released alternately at the rear axle brakes, so that, on average, a saturation pressure is reached which is below the primary pressure specified by the driver. This method is suitable especially for brake systems without pressure reducers for the rear wheel brakes, when, in the absence of input information, the electronic distribution of the braking force is no longer possible.

Method and apparatus for controlling the brake system of a vehicle

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 steer-by-wire steering system comprised of an electronically regulated steering positioner mounted to the steering gear of the front axle or to both front wheels of a vehicle together with an electronic steering regulator and a feedback actuator. A sensor senses the driver's selected direction from the steering wheel. Road feedback can be relayed to the driver through a feedback actuator via the steering wheel. The loss of road feel caused by the absence of the steering column, which normally strongly influences the driver's directional wish, is recreated by the feedback actuator.

Steer-by-wire steering system for motorized vehicles

The invention is directed to a method and an arrangement for controlling a motor vehicle. Several components are arranged in a command hierarchy and the commands for the components flow only from a higher abstraction level into a lower abstraction level and from a higher hierarchial level into a lower hierarchial level. Each component has only one command generator. The components operator-controlled elements are arranged in the command hierarchy as low as possible.

Method and arrangement for controlling a vehicle

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Bietigheim-Bissingen, Germany

Peter Dominke