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1. WO2021244784 - METHOD FOR DETERMINING A BRAKE PRESSURE CHANGE

Publication Number WO/2021/244784
Publication Date 09.12.2021
International Application No. PCT/EP2021/056801
International Filing Date 17.03.2021
IPC
B60T 8/171 2006.1
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
171Detecting parameters used in the regulation; Measuring values used in the regulation
B60T 8/1761 2006.1
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 8/171
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
171Detecting parameters used in the regulation; Measuring values used in the regulation
B60T 8/174
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
174characterised by using special control logic, e.g. fuzzy logic ; , neural computing
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
  • SCHARBAK, Rami
Priority Data
10 2020 206 837.202.06.2020DE
Publication Language German (de)
Filing Language German (DE)
Designated States
Title
(DE) VERFAHREN ZUR BESTIMMUNG EINER BREMSDRUCK-ÄNDERUNG
(EN) METHOD FOR DETERMINING A BRAKE PRESSURE CHANGE
(FR) PROCÉDÉ DE DÉTERMINATION D'UN CHANGEMENT DE PRESSION DE FREIN
Abstract
(DE) Es wird ein Verfahren zur Bestimmung einer Bremsdruck-Änderung für ein Rad eines Fahrzeugs zur Optimierung eines Bremsvorgangs vorgeschlagen, das die folgenden Schritte aufweist: Bereitstellen eines aktuellen Rad-Status des Rades, wobei der Rad-Status eine Mehrzahl von Statusparametern aufweist; Bestimmen zumindest eines Statusparameters, dessen Wert von einem Ziel-Rad-Status abweicht; Bestimmen einer Änderungsrichtung der Bremsdruck-Änderung abhängig von einer Abweichung des zumindest einen Statusparameters von dem Ziel-Rad-Status; Bereitstellen eines Bremsdruck-Kennfelds zur Bestimmung eines Werts der Bremsdruck-Änderung, wobei das Bremsdruck-Kennfeld eine Bremsdruck-Änderung der Mehrzahl der Statusparameter zuordnet und spezifisch für die bestimmte Änderungsrichtung der Bremsdruck-Änderung und Statusparameter-Änderung ist; Bestimmen eines Werts der Bremsdruck-Änderung mit dem aktuellen Rad-Status und dem bereitgestellten Bremsdruck-Kennfeld.
(EN) A method for determining a brake pressure change for a wheel of a vehicle for the purposes of optimizing a braking operation is proposed, which method has the following steps: providing a present wheel status of the wheel, wherein the wheel status has a multiplicity of status parameters; determining at least one status parameter, the value of which deviates from a target wheel status; determining a change direction of the brake pressure change in a manner dependent on a deviation of the at least one status parameter from the target wheel status; providing a brake pressure characteristic map for determining a value of the brake pressure change, wherein the brake pressure characteristic map assigns a brake pressure change to the multiplicity of status parameters and is specific for the determined change direction of the brake pressure change and status parameter change; determining a value of the brake pressure change with the present wheel status and the provided brake pressure characteristic map.
(FR) Procédé de détermination d'un changement de pression de frein pour une roue d'un véhicule à des fins d'optimisation d'une opération de freinage, le procédé comprenant les étapes consistant à : fournir un état de roue actuel de la roue, l'état de roue ayant une multiplicité de paramètres d'état ; déterminer au moins un paramètre d'état dont la valeur s'écarte d'un état de roue cible ; déterminer une direction de changement du changement de pression de frein d'une manière dépendant d'un écart dudit au moins un paramètre d'état à partir de l'état de roue cible ; fournir une carte de caractéristiques de pression de frein en vue de déterminer une valeur du changement de pression de frein, la carte de caractéristiques de pression de frein attribuant un changement de pression de frein à la multiplicité de paramètres d'état et étant spécifique à la direction de changement déterminée du changement de pression de frein et du changement de paramètre d'état ; déterminer une valeur du changement de pression de frein avec l'état de roue actuel et la carte de caractéristiques de pression de frein fournie.
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