Verfahren und Vorrichtung zur Ermittlung einer Vertikalbeschleunigung eines Rades eines Fahrzeugs

• Main Authors: HOFFMANN, CRISTIANO, SCHWARZ, RALF
• Format: Patent
• Language: German
• Published: 16.06.2011
• Subjects: ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT; MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION,OR SHOCK; PERFORMING OPERATIONS; PHYSICS; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT; TESTING; TRANSPORTING; VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES; VEHICLE SUSPENSION ARRANGEMENTS; VEHICLES IN GENERAL

A method and a device for the determination of a vertical acceleration (zW) of a wheel of a vehicle for use in a driving dynamics control or monitoring system. The device includes a first determination device for the determination of a spring stroke acceleration (Deltaz) of a spring loaded in vertical direction by the body of the vehicle and installed between the body and the wheel; a second determination device for the determination of a partial vertical body acceleration (zB,V), and a control unit, which adds the spring stroke acceleration (Deltaz) and the partial vertical body acceleration (zB,V) in order to obtain the vertical wheel acceleration (zzW) and passes the vertical wheel acceleration (zW) and passes the vertical wheel acceleration (zW) for further processing to the driving dynamics control. By this means, an expensive sensor arrangement for the detection of the vertical wheel acceleration can be eliminated, wherein the results of the inventive determination of the vertical wheel acceleration reflect very actual comparison measurements.