Robert Boschgmbh

Eberhardt Schunck

Ulrich Gottwick

Juergen Binder

Martin Pfau

Andreas Kaessmann

Juergen Hachtel

Michael Schubert

Hermann Winner

Anton Van Zanten

Wolf-Dieter Jonner

Dirk Hofmann

Ernst-Dieter Schaefer

Klaus Landesfeind

Hans Heckmann

Rainer Heinsohn

Alain Gaillard

Ortwin Engfer

Peter Meissner

Jurgen Binder

Wolfgang Schramm

Stefan Bayer

Jurgen Hachtel

Andreas Berner

Michael Dinkelacker

A method and an apparatus for controlling a braking system, the control unit of which controls the wheel brakes receiving reference variables for control purposes. If these reference variables are not available, the control unit produces, on the basis of a predefined braking force distribution between the front and rear axles and in the context of an emergency mode, reference variables which it sets at the wheel brakes.

Method and apparatus for controlling a braking system

A hydraulic vehicle brake system in which normal service brake operation can be carried out by using external hydraulic energy, and in the event of a lack of external hydraulic energy, auxiliary brake operation by muscle power is possible, with a hydraulic transmission that comes from a master cylinder that can be actuated by means of the brake pedal. The external hydraulic energy is stored, for example, in an accumulator with a gas buffer, which can lead to a gas content in the hydraulic fluid for the service brake operation. The system includes a dual-circuit master cylinder associated with those wheel brakes of a vehicle axle that make a higher contribution to the vehicle deceleration and at the same time, cylinder/piston devices are installed between these wheel brakes and their associated service brake valves for the purpose of preventing hydraulic fluid from getting into these wheel brakes from the external energy source. The advantage is that neither gas nor air is carried into the wheel brakes where it could lead to the formation of bubbles in the event of a pressure drop and would be disadvantageous for an auxiliary brake operation by the master cylinder. The cylinder/piston devices increase the operational safety of the vehicle brake system when braking by muscle power.

Hydraulic vehicle braking system

Process and device for controlling a pump in an electro-hydraulic brake

Hydraulic brake system for a vehicle

A method and a device for regulating the pressure prevailing in at least one wheel brake. Pressure is regulated in a stepless, continuously variable manner, by a regulator generating at least one driving signal quantity for a pressure-influencing valve arrangement on the basis of the active operating point of the valve arrangement.

Method and device for regulating the pressure in at least one wheel brake

The invention relates to a hydraulic motor vehicle power brake system having a hydraulic pump which is connected to a hydraulic reservoir as an external energy reservoir and is connected to wheel brake cylinders, wherein the wheel brake cylinders are preceded by inlet valves and are followed by outlet valves. To improve the adjustability of a desired brake pressure in the wheel brake cylinders and to cut costs, the inlet and outlet valves are identical as continuous pressure limiting solenoid valves or as continuous pressure differential solenoid valves.

Vehicle power brake system including a motor driven hydraulic pump

The invention relates to a hydraulic brake system having a tandem master cylinder as the brake force set-point value transducer for braking by external force, downstream of which are disconnection valves for hydraulically disconnecting the master cylinder from wheel brake cylinders for external force braking. To achieve a pedal travel when the disconnection valves are closed, the invention proposes a lengthened idle travel of the pistons of the master cylinder, for instance by increasing a valve opening stroke of central valves integrated with the pistons. A travel-dependent pedal force is realized with simulator spring elements that act upon the pistons.

Hydraulic brake system

A method and a device for controlling a brake system, in which the braking force is regulated in at least one wheel as a function of a driver's command. In an operating state where transition to vehicle standstill is to be expected, the braking force in this at least one wheel is reduced independently of the driver's command.

Method and device for controlling a brake system

A method and an apparatus for controlling a braking system of a vehicle. The braking action is established or regulated at at least one wheel brake, by electrical structure, as a function of a driver's braking input. A capability for conventional action by the driver is cut off by a valve. A pressure medium is enclosed in a portion of the braking system. In at least one operating state in which an expansion in the volume of the enclosed medium may be expected, the valve is briefly opened in order to reduce the expansion in volume.

Method and apparatus for controlling a braking system of a vehicle

Hydraulic braking system for road vehicles, in particular passenger cars

The invention is based on a method and system for regulation and/or control of an automobile chassis where between the vehicle body and at least one wheel there is at least one actuator actuated by actuation signals for exertion of forces between the vehicle and the at least one wheel. At least parts of the actuation signals are so formed that the vertical movements of the vehicle body will be damped inertially. According to the invention, at least parts of the actuation signals (Fij) are so formed that the damping takes place dependent on the magnitude of the vertical velocity (Zaij') of the vehicle body.

Method and system for regulation and/or control of an automobile chassis

A spring strut including a work cylinder with a slider in the work cylinder. Electrical contacts are applied on the slider and cylinder and in an inward stroke, a first electrical loop, which extends via the slider, is electrically closed and a second electric loop is broken. In an outward stroke, the second electric loop is closed via the slider, and the first loop is opened. Thus, with the aid of an electrical circuit, it is simple and easy to recognize whether the work cylinder is operating in an inward or in an outward stroke.

Spring strut with a relative motion indicative signal

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Landau, Germany

Eberhardt Schunck