Robert Boschgmbh

Deere & Company

Frank Kneip

Herbert Vollert

Dirk Mahnkopf

Reinhard Weiberle

Jens Kolarsky

Timo Jahnz

Volker Mehl

Stephan Hoenle

Remy Garnier

Sebastian Blank

Folker Beck

A system for deriving the operating state of a machine comprises one or more sensors for making available in each case an output value relating to a current parameter of a component of the machine, and a processing unit which is connected to the sensors and is programmed to derive information about the operating state of machine using a model and on the basis of the measured values of the sensors and/or values derived therefrom. The processing unit can be supplied with a state transition matrix, elements of an emission probability matrix for the probability that an observation is conditioned by a certain state, and a vector for describing an input state, in order to derive the operating states of the machine therefrom. The processing unit is programmed to derive elements of the emission probability matrix from the measured values of the sensors.

System for detecting the operating state of a machine

A method and control device for operating a brake-boosted hydraulic brake system of a vehicle, including ascertaining information relating to an increase or a decrease in an additional braking force exerted on at least one wheel in addition to a hydraulic braking force of the brake system, which increase or decrease is greater than a predefined minimum difference, altering an assistance force to a force introduction element, by a force difference, taking account of the ascertained information, so that the hydraulic braking force is altered to correspond to the increase or decrease in the additional braking force, and displacing a volume of a brake medium of the brake system between at least one accumulator chamber of at least one plunger and/or of at least one two-chamber cylinder and a volume of the brake system outside the accumulator.

Method for operating a brake-boosted hydraulic brake system of a vehicle and control device for a brake-boosted hydraulic brake system of a vehicle

The invention relates to a method for operating a brake-boosted brake system of a vehicle, comprising the following steps: determining braking force information () with respect to a driver braking force (Ff), which is applied to the actuating element () when an actuating element () of the brake system is actuated by a driver of the vehicle; determining an actual speed parameter () with respect to an adjustment speed of a servo piston () of the brake system to which a servo power (Fu) of a brake booster () of the brake system is applied; determining a relative speed parameter () with respect to a relative speed of the servo piston () relative to the input piston (); establishing a target speed parameter () with respect to the adjustment speed of the servo piston () taking into account the determined braking force information (), the determined actual speed parameter () and the determined relative speed parameter (), and actuating the brake booster () taking the established target speed parameter () into account. The invention further relates to a control device () and to a brake booster () for a brake-boosted brake system of a vehicle, and to a brake-boosted brake system for a vehicle.

Method for operating a brake-boosted brake system of a vehicle, and control device for a brake-boosted brake system of a vehicle

A method for actuating a hydraulic vehicle brake system, includes a master brake cylinder with a preferably electromechanical brake booster and a wheel slip control device. The master brake cylinder is actuated simultaneously with the brake booster, and hydraulic pumps of the wheel slip control device are driven by an electric motor. Pressure builds more quickly in the wheel brakes of the vehicle brake system for safety and assistance functions that require high pressure build-up dynamic. The method also increases the wheel brake pressure using the pressure that can be generated by actuating the master brake cylinder with the brake booster.

Method for actuating a hydraulic vehicle brake system

A method for operating a hydraulic vehicle braking system that has an anti-lock control unit is disclosed. The system includes a brake master cylinder having an electromechanical brake booster. As the pressure level of the vehicle braking system decreases during an anti-lock control, in which all vehicle wheels are controlled, the boosting force of the brake booster is reduced in an anti-lock control of this type.

Method for operating a hydraulic vehicle braking system that has an anti-lock control unit

The invention relates to a method for operating a brake boosted brake system of a vehicle, comprising the monitoring of a mode of operation of the brake boosted brake system with regard to agreement of a total braking torque applied to at least one wheel of the vehicle by the brake boosted brake system with a specified target total braking torque and/or with regard to a displacement of a brake medium volume of the brake boosted brake system to a force/pressure conversion element () of the brake boosted brake system, if a braking torque difference between the applied total braking torque and the specified target total braking torque is greater than a specified reference difference, and/or if the brake medium volume displaced to the force/pressure conversion element () is larger than a specified reference volume; further comprising the defining of a target boosting force change with regard to a boosting force (Fu) provided by a brake booster () of the brake boosted brake system, taking into account the braking torque difference and/or the displaced brake medium volume, and outputting the target boosting force change to the brake booster (). The invention further relates to a corresponding control device for a brake boosted brake system of a vehicle.

Method for operating a boosted brake system of a vehicle and control device for a boosted brake system of a vehicle

A control device () for a brake-power-assisted brake system of a vehicle having a first input device () for a supplied first information item () relating to a supplied assistance force (Fu) of a brake booster () of the brake-power-assisted brake system, a second input device () for a supplied second information item () relating to a total force (Fg) comprising the assistance force (Fu) and a driver braking force (FI) supplied by activation of an activation element () of the brake-power-assisted brake system, an evaluation device () which is configured to define a third information item relating to a proportional relationship between the total force (Fg) and the assistance force (Fu) taking into account the first information item () and the second information item (), and an output device () which is configured to supply at least one control signal () to at least one component () of the brake-power-assisted brake system taking into account the defined third information item relating to the proportional relationship between the total force (Fg) and the assistance force (Fu).

Growing community of inventors

Bruchmuhlbach-Miesau, Germany

Frank Kneip