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1. WO2020108818 - METHOD FOR DETERMINING A FUTURE WHEEL BRAKE PRESSURE OF A HYDRAULIC VEHICLE BRAKE SYSTEM

Publication Number WO/2020/108818
Publication Date 04.06.2020
International Application No. PCT/EP2019/075433
International Filing Date 21.09.2019
IPC
B60T 8/172 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
8Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
17Using electrical or electronic regulation means to control braking
172Determining control parameters used in the regulation, e.g. by calculations involving measured or detected parameters
B60T 8/175 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
8Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
17Using electrical or electronic regulation means to control braking
175Brake regulation specially adapted to prevent excessive wheel spin during vehicle acceleration, e.g. for traction control
B60T 8/1761 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
8Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
17Using electrical or electronic regulation means to control braking
176Brake regulation specially adapted to prevent excessive wheel slip during vehicle deceleration, e.g. ABS
1761responsive to wheel or brake dynamics, e.g. wheel slip, wheel acceleration or rate of change of brake fluid pressure
CPC
B60T 2270/88
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL
2270Further aspects of brake control systems not otherwise provided for
88Pressure measurement in brake systems
B60T 8/172
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL
8Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
17Using electrical or electronic regulation means to control braking
172Determining control parameters used in the regulation, e.g. by calculations involving measured or detected parameters
B60T 8/175
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL
8Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
17Using electrical or electronic regulation means to control braking
175Brake regulation specially adapted to prevent excessive wheel spin during vehicle acceleration, e.g. for traction control
B60T 8/17616
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL
8Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
17Using electrical or electronic regulation means to control braking
176Brake regulation specially adapted to prevent excessive wheel slip during vehicle deceleration, e.g. ABS
1761responsive to wheel or brake dynamics, e.g. wheel slip, wheel acceleration or rate of change of brake fluid pressure
17616Microprocessor-based systems
Applicants
  • ROBERT BOSCH GMBH [DE]/[DE]
Inventors
  • VON KELER, Johannes
  • KRAUTTER, Andreas
Priority Data
10 2018 220 557.429.11.2018DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) VERFAHREN ZUR ERMITTLUNG EINES ZUKÜNFTIGEN RADBREMSDRUCKS EINER HYDRAULISCHEN FAHRZEUGBREMSANLAGE
(EN) METHOD FOR DETERMINING A FUTURE WHEEL BRAKE PRESSURE OF A HYDRAULIC VEHICLE BRAKE SYSTEM
(FR) PROCÉDÉ POUR DÉTERMINER UNE PRESSION DE FREIN DE ROUE FUTURE D'UN SYSTÈME DE FREINAGE DE VÉHICULE HYDRAULIQUE
Abstract
(DE)
Zur Ermittlung eines zukünftigen Radbremsdrucks (pRad) schlägt die Erfindung vor, Druckerzeugerdrücke (pVor) eines Fremdkraft-Bremsdruckerzeugers (5) fortlaufend in Messzeitabständen (tTakt) zu messen, daraus Radbremsdruckänderun (pinc i) zu ermitteln und die Summe der während einer Zeitspanne (tTot) vor der Messung ermittelten Radbremsdruckänderungen (pinc i) zum letzten gemessenen Druckerzeugerdruck (pVor) zu addieren. Der so ermittelte Radbremsdruck (PRad) wird als der Radbremsdruck (pRad) angesehen, der nach der Zeitspanne (tTot) nach der Messung des Druckerzeugerdrucks (pVor) in einer Radbremse (3) herrschen wird.
(EN)
In order to determine a future wheel brake pressure (pRad), according to the invention pressure generator pressures (pV or) of an external power brake pressure generator (5) are measured continually at measurement time intervals (tTakt), wheel brake pressure changes (pinc i) are determined therefrom and the total of the wheel brake pressure changes (pinc i) determined during a time period (tTot) before the measurement are added to the last-measured pressure generator pressure (pV or). The wheel brake pressure (PRad) determined in this way is considered to be the wheel brake pressure (pRad) that will prevail in a wheel brake (3) after the time period (tTot) following the measurement of the pressure generator pressure (pV or).
(FR)
L'invention concerne la détermination d'une pression de frein de roue (pRad) future. À cet effet, des pressions (pV or) d'un générateur de pression de freinage par une force non musculaire (5) sont mesurées en continu par intervalles de temps de mesure (tTakt), des modifications de pression de frein de roue (pinc i) sont déterminées à partir de celles-ci, et la somme des modifications de pression de frein de roue (pinc i) déterminées avant la mesure pendant un laps de temps (tTot) est ajoutée à la dernière pression de générateur de pression (pV or). La pression de frein de roue (PRad) ainsi déterminée est considérée comme la pression de frein de roue (pRad) qui régnera dans un frein (3) de roue après le laps de temps (tTot) après la mesure de la pression de générateur de pression (pV or).
Also published as
Latest bibliographic data on file with the International Bureau