Zf Cv Systems Europe Bv

Wabco Gmbh

Zf Friedrichshafen Ag

Trw Automotive U.S. LLC

Wabco Europe Bvba

Zf Cv Systems Hannover Gmbh

Stephan Kallenbach

Thomas Dieckmann

Daniel Hanslik

Karsten Breuer

Oliver Wulf

Ralph-Carsten Luelfing

Mathias Baum

Friedrich Tenbrock

Torsten Wallbaum

Christian Wiehen

Klaus Plaehn

Ralph-Carsten Lülfing

Sebastian Kuehne

Alexander Wendlandt

Sebastian Kühne

Christoph Barth

Klaus Plähn

Ahmed Ragab

Sven Gohl

Christoph Schall

Dan Williams

Michaela Deblitz

A method for the predictive assessment of a current driving situation of a vehicle, in particular utility vehicle, includes determining currently present driving situation information, wherein the driving situation information characterizes the current driving situation of the vehicle. The method includes specifying the driving situation information to a neural algorithm, wherein the neural algorithm assigns, in the manner of a trained neural network, a driving situation category to the currently present driving situation information. The respective driving situation category is based on a predicted driving situation. The neural algorithm determines the predicted driving situation in accordance with the current driving situation and the predicted driving situation indicates a driving situation of the vehicle which will develop in future from the current driving situation. The method includes outputting an output value characterizing the driving situation category, as an assessment result.

Method for predictive assessment of a current driving situation and assessment module

A method for emergency braking of a subject vehicle includes: detecting, using a first surroundings detection system of the subject vehicle traveling in a direction of travel, a front area in front of the subject vehicle; if an object is detected in the front area, determining that a reliable target detection situation is present if at least the following target detection situation criteria are fulfilled: the detected object is a vehicle in front traveling in the direction of travel, the vehicle in front is followed over a minimum following period, in the minimum following period, the same vehicle in front is followed, providing an autonomous emergency braking system which is in an AEBS standby mode during travel outside an emergency braking situation; and if an emergency braking situation is detected outside of a reliable target detection situation, switching the autonomous emergency braking system to an active AEBS mode.

Method for the emergency braking of an ego-vehicle and emergency braking system

A method for learning braking step threshold values of a sustained-action brake includes detecting a braking requirement setpoint, controlling the sustained-action brake with the braking requirement setpoint to generate a braking effect variable of the sustained-action brake, and detecting a sustained-action brake actual braking effect variable and a maximum sustained-action brake braking effect. The method additionally includes forming a braking effect variable coefficient that characterizes a ratio of the sustained-action brake actual braking effect variable and the maximum sustained-action brake braking effect variable that results from control of the sustained-action brake with the braking requirement setpoint, and assigning the braking effect variable coefficient to a braking step of the sustained-action brake such that each braking step is assigned only one braking effect variable. Additionally, the method includes storing the braking requirement setpoint that results in the braking effect variable coefficient.

Method for learning braking step threshold values of a sustained-action brake operated in braking steps, and braking system

A method for performing an evasive maneuver with a commercial vehicle-trailer combination includes ascertaining that a collision between the commercial vehicle-trailer combination and a collision object is impending. The method further includes determining an evasion trajectory by which the commercial vehicle-trailer combination can evade the collision object without coming into contact with the collision object, determining a desired steering angle based on the evasion trajectory and activating an active steering system of the commercial vehicle-trailer combination in dependence on the determined desired steering angle such that the commercial vehicle-trailer combination moves along the evasion trajectory from a starting traffic lane to a target traffic lane so as to perform the evasive maneuver. The method additionally includes determining a desired vehicle deceleration and initiating an electronic braking system of the commercial vehicle-trailer combination in dependence on the desired vehicle deceleration so as to brake the commercial vehicle-trailer combination.

Method for performing an evasive maneuver with a utility vehicle combination, and emergency evasion system

A method for determining the overall-deceleration values is attainable by actuation of wheel brakes, of a utility vehicle or of a vehicle combination with several axles. For the purpose of implementing a deceleration request in the course of partial brake applications, a braking-force distribution with braking forces distributed unequally to brake units with the wheel brakes of one or more axles is undertaken. In each instance one of the brake units is selected and a larger braking force is imposed via this selected brake unit than via the other brake units. A current deceleration of the utility vehicle or of the vehicle combination is measured or ascertained and is assigned as partial-deceleration value to the respectively selected brake unit and stored and the attainable overall-deceleration values are determined as the sum of the partial-deceleration values of all the brake units.

Method for determining the overall-deceleration values of a utility vehicle that are attainable by actuation of wheel brakes, braking system for carrying out the method, and utility vehicle with such a brake system

A method for controlling a hydraulic servo steering system in a vehicle includes reading out a collision warning signal to establish that a collision assistance case exists, and in response to determining that the collision assistance case exists, providing a hydraulic fluid by a hydraulic pump of the servo steering system. Serving for steering assistance has an actual volumetric flow-rate that is greater than or equal to a minimum volumetric flow-rate. The method additionally includes increasing a pump speed if the actual volumetric flow-rate is less than the minimum volumetric flow-rate, the pump speed being dependent on an engine/motor speed of a drive engine/motor interacting with the hydraulic pump.

Method for controlling a hydraulic servo steering system, and a hydraulic servo steering system in a vehicle

A method for determining a coefficient-of-friction, the method including braking a first wheel of a vehicle such that a slip between the first wheel and a roadway is less than a slip between a second wheel of the vehicle and the roadway, and determining a coefficient-of-friction between the first wheel and the roadway based on the behavior of the first wheel during the braking. The method optionally including hazard braking the vehicle.

Coefficient-of-friction estimator

A method for controlling a compressed air brake system of a vehicle includes outputting an analog driver brake pressure via a brake pressure control line during driver braking by operating a brake pedal, a switching device set in a driver braking position to a brake circuit with at least one ABS stop valve device, a brake line, and a wheel brake. The method additionally includes, in the presence of both driver braking and the external brake demand signal, measuring the driver brake pressure and determining a driver brake pressure value. Furthermore, the method includes forming a combined brake pressure value by adding or superimposing the driver brake pressure value and an external brake pressure value contained in the external brake demand signal, and switching the switching device into the functional position and controlling the combined brake pressure value from the system pressure by actuating the ABS stop valve device.

Compressed air brake system for a vehicle and a method for controlling a compressed air brake system of this type

Automatically controlling the longitudinal dynamics of a vehicle includes ascertaining a state variable dependent on the state of at least one wheel brake, detecting overshoots and/or undershoots of a limiting value of the state variable, ascertaining information about a vehicle traveling ahead, setting at least one control of a feedback control system, and controlling the longitudinal dynamics of the vehicle as a function of the at least one control parameter. A sensing device used to ascertain the state of the at least one wheel brake, another sensing device is used to ascertain information about the vehicle traveling ahead, and an evaluating, setting and controlling unit is used to evaluate the state of the at least one wheel brake and the information about the vehicle traveling ahead for setting the at least one control parameter and for controlling the longitudinal dynamics of the vehicle as a function thereof.

Method and device for automatic longitudinal dynamics control of a motor vehicle

Automatically regulating vehicle longitudinal dynamics in accordance with a preceding vehicle includes determining a first state variable dependent on vehicle acceleration, a second state variable dependent on engine drive torque, a third state variable dependent on the operating state of at least one permanent brake, and information about the preceding vehicle, and adjusting at least one regulating parameter of a regulation function and regulating the longitudinal dynamics depending on the at least one regulating parameter. A first sensor determines the vehicle speed, a second determines the drive torque, a third determines the operating state of the at least one permanent brake, a fourth determines information about the preceding vehicle and an analysis/adjustment/regulating unit analyzes the speed, the drive torque, the operating state of the at least one permanent brake and the information about the preceding vehicle, adjusting the at least one regulating parameter and regulating the vehicle longitudinal dynamics depending on the at least one regulating parameter.

Growing community of inventors

Hannover, Germany

Stephan Kallenbach