Robert Boschgmbh

Zf Lenksysteme Gmbh

Chi-Thuan Cao

Peter Dominke

Herbert Lohner

Werner Harter

Klaus-Dieter Leimbach

Herbert Vollert

Willi Nagel

Bertram Foitzik

Dirk Hofmann

Bernd Goetzelmann

Wolfgang Pfeiffer

Helmut Janetzke

Dietmar Baumann

Andreas Henke

Peter Blessing

Hans Frick

Juergen Schuele

Harald Michi

Marko Poljansek

Andreas Erban

Alfred Schulz

Jens Hafermalz

Wilfried Leutner

Helmut Knoedler

Mathias Hommel

Bo Yuan

Henning Cordes

Bernd Mueller

Klaus Ries-Mueller

Werner Hess

Peter Ahner

Helmut Wiss

Rolf Becker

Ngoc-Thach Nguyen

Jens Fiedler

Thorsten Allgeier

Karl-Josef Weiss

Helmut Kauff

Ulrich Belzner

Elmar Dilger

Klemens Kronenberg

Thomas Sauer

Thomas Loeffler

Thorsten Bertram

Bernhard Zeilinger

Thorsten-Wilhelm Moeller

Bernd Lieberoth-Leden

Matthias Volkert

Wolfgang Matuschek

Andreas Zierhut

Petral Blessing

Helmut Knödler

Juergen Schuelle

Klauss-Dieter Leimbach

Matthias Haussmann

The present invention relates to a self-amplifying electromechanical partial lining disc brake, having a ramp mechanism as a self-amplification device. According to the invention, a rack for driving a friction brake pad is situated between roller elements of the ramp mechanism, particularly at a geometrical centroid of an imaginary surface defined by the roller elements. As a result a load is distributed to the roller elements in a more uniform fashion and the pressing force of the friction brake pad against a brake disc when the partial lining disc brake is actuated is distributed more uniformly and counteracts irregular pad wear.

Self-amplifying electromechanical partial lining disc brake

The invention relates to an electromechanical friction brake, for example in the form of a disc brake having an electromechanical actuation device. The electric motor of the actuation device presses a frictional brake lining against a brake disc by means of a reduction gearbox and a ball ramp mechanism. The actuation device is supported by a spring washer that is pretensioned so strongly that when the disc brake is released it acts on a segment with a falling spring characteristic; that is, a spring force exerted by the spring washer on the frictional brake lining increases with increasing tension of the disc brake.

Electromechanical friction brake

The invention relates to a self-reinforcing electromechanical disc brake having a brake caliper produced by means of shaping, in one piece with a housing for electromechanical parts of an actuating device of the disc brake, with the housing forming a dimensionally stable hollow body. It is possible in this way to produce a bending-resistant and torsionally rigid brake caliper with a low wall thickness.

Self-reinforcing electromechanical disc brake

The invention relates to a selective freewheeling mechanism for developing an electromechanical vehicle brake (service brake) into a parking brake. The freewheeling mechanism according to the invention has an outer ring and a locking element cage which are configured as an electric motor with a rotor and a stator. The rotor and stator can be swiveled in relation to each other when a coil is supplied with current. Due to a symmetric design, the freewheeling mechanism is advantageously insensitive to acceleration forces.

Selective freewheeling mechanism and electromechanical vehicle brake having a selective freewheeling mechanism

The invention relates to an electromechanical disk brake which has a switchable freewheel in order to be configured as a parking brake. The switchable freewheel includes a clamping roller freewheel having rollers for locking a motor shaft of an electric motor of the brake. A locating bearing of the motor shaft of an electric motor, and the freewheel are accommodated on a cover of a housing of the electric motor, and all the electric connections of the disc brake are routed via the cover. The number of components used can be reduced considerably by the integrated design. Moreover, the positional tolerances of the freewheel in relation to the motor shaft can be reduced with the aid of the invention.

Electromechanical brake

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 method for steering a motor vehicle with a steer-by-wire steering system. A setpoint is for the position of the steered wheels is generated from the steering wheel angle. A controlled difference is then generated between the setpoint and the actual value of the position of the steered wheel and the position of the steered wheel is then adjusted in accordance with the controlled difference. The steering wheel torque is then adjusted based on the torque's and/or forces prevailing between the steered wheels and a steering controller or based on a performance graph.

Method for position regulation of an electric drive and for steering a motor vehicle by means of a steer-by-wire 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 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 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 system for determining the gear ratio changes in an automatic transmission in a vehicle having an accelerator pedal actuated by a driver of the vehicle. The system includes a first sensor for detecting the position (DK) of said accelerator pedal as a first variable and a second sensor for detecting at least one of the following as a second variable: the vehicle straight-line speed (V.sub.x), transmission output rpm and the motor rpm. An adaptation variable (BZ) is determined in an evaluation mode in dependence upon a comparison of a time-dependent change of the first variable to at least one threshold value (SW, SW1, SW2). A characteristic field receives the first and second variables as input variables. The characteristic field and the adaptation variable (BZ) are used to form a gear ratio change (SG) for the automatic transmission.

Adaptive transmission control

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Korntal-Muenchingen, Germany

Chi-Thuan Cao