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1. WO2020108820 - METHOD AND CONTROL DEVICE FOR DETERMINING A COEFFICIENT OF FRICTION POTENTIAL OF A ROADWAY COVERING

Publication Number WO/2020/108820
Publication Date 04.06.2020
International Application No. PCT/EP2019/075436
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
B60W 40/068 2012.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
WCONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
40Estimation or calculation of driving parameters for road vehicle drive control systems not related to the control of a particular sub-unit
02related to ambient conditions
06Road conditions
068Road friction coefficient
CPC
B60T 2201/16
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL
2201Particular use of vehicle brake systems; Special systems using also the brakes; Special software modules within the brake system controller
16Curve braking control, e.g. turn control within ABS control algorithm
B60T 2210/12
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL
2210Detection or estimation of road or environment conditions; Detection or estimation of road shapes
10Detection or estimation of road conditions
12Friction
B60T 2270/303
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
30ESP control system
303Stability control with active acceleration
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
B60W 40/068
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
WCONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
40Estimation or calculation of ; non-directly measurable; driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, ; e.g. by using mathematical models
02related to ambient conditions
06Road conditions
068Road friction coefficient
Applicants
  • ROBERT BOSCH GMBH [DE]/[DE]
Inventors
  • ERBAN, Andreas
  • HOFMANN, Tobias
  • HAGENLOCHER, Nils
  • OBERHARDT, Tobias
Priority Data
10 2018 220 576.029.11.2018DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) VERFAHREN UND STEUERGERÄT ZUM BESTIMMEN EINES REIBWERTPOTENTIALS EINES FAHRBAHNBELAGS
(EN) METHOD AND CONTROL DEVICE FOR DETERMINING A COEFFICIENT OF FRICTION POTENTIAL OF A ROADWAY COVERING
(FR) PROCÉDÉ ET APPAREIL DE COMMANDE DESTINÉS À DÉTERMINER UN POTENTIEL DE COEFFICIENT DE FROTTEMENT D'UN REVÊTEMENT DE CHAUSSÉE
Abstract
(DE)
Die vorliegende Erfindung bezieht sich auf ein Verfahren zum Bestimmen eines Reibwertpotentials (116) eines Fahrbahnbelags, dadurch gekennzeichnet, dass ein Gesamtdrehmoment (112) zum Betreiben eines Fahrzeugs (100) auf zumindest zwei Raddrehmomente (110) an Rädern (104) des Fahrzeugs (100) ungleich verteilt wird, wobei das Reibwertpotential (116) unter Verwendung eines erfassten Schlupfs zwischen dem Fahrbahnbelag und zumindest einem der Räder (104) und des an dem Rad (104) anliegenden Raddrehmoments (110) ermittelt wird.
(EN)
The present invention relates to a method for determining a coefficient of friction potential (116) of a roadway covering, characterized in that an overall torque (112) for operating a vehicle (100) is distributed unequally between at least two wheel torques (110) at wheels (104) of the vehicle (100), wherein the coefficient of friction potential (116) is determined using a detected slip between the roadway covering and at least one of the wheels (104) and the wheel torque (110) which is present at the wheel (104).
(FR)
La présente invention concerne un procédé pour déterminer un potentiel de coefficient de frottement (116) d'un revêtement de chaussée. L'invention est caractérisée en ce qu'un couple total (112), pour faire fonctionner un véhicule (100), est réparti de manière inégale en au moins deux couples (110) de roue sur des roues (104) du véhicule (100), le potentiel de coefficient de frottement (116) étant déterminé au moyen d'un glissement détecté entre le revêtement de chaussée et au moins une des roues (104), et du couple (110) de roue s'appliquant contre la roue (104).
Also published as
Latest bibliographic data on file with the International Bureau