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1. WO2022028777 - METHOD FOR DIAGNOSING THE OPENING OF THE RELAYS OF A BATTERY OF A HYBRID POWERTRAIN

Publication Number WO/2022/028777
Publication Date 10.02.2022
International Application No. PCT/EP2021/067717
International Filing Date 28.06.2021
IPC
B60L 3/00 2019.1
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
3Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
B60L 50/61 2019.1
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
50Electric propulsion with power supplied within the vehicle
50using propulsion power supplied by batteries or fuel cells
60using power supplied by batteries
61by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
G01R 31/52 2020.1
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
31Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
50Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
52Testing for short-circuits, leakage current or ground faults
G01R 31/55 2020.1
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
31Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
50Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
55Testing for incorrect line connections
G01R 31/00 2006.1
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
31Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
G01R 31/327 2006.1
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
31Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
327Testing of circuit interrupters, switches or circuit-breakers
CPC
B60K 6/28
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
6Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units
20the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
22characterised by apparatus, components or means specially adapted for HEVs
28characterised by the electric energy storing means, e.g. batteries or capacitors
B60K 6/46
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
6Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units
20the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
42characterised by the architecture of the hybrid electric vehicle
46Series type
B60L 2240/527
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES
2240Control parameters of input or output; Target parameters
40Drive Train control parameters
52related to converters
527Voltage
B60L 2240/80
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES
2240Control parameters of input or output; Target parameters
80Time limits
B60L 3/0046
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES
3Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
0023Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
0046relating to electric energy storage systems, e.g. batteries or capacitors
B60L 3/0069
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES
3Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
0023Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
0069relating to the isolation, e.g. ground fault or leak current
Applicants
  • RENAULT S.A.S [FR]/[FR]
  • NISSAN MOTOR CO., LTD. [JP]/[JP]
Inventors
  • BAUMANN, Thibaut
  • BOUARFA, Abdelkader
Agents
  • URBILLAC, Chantal
Priority Data
FR200831005.08.2020FR
Publication Language French (fr)
Filing Language French (FR)
Designated States
Title
(EN) METHOD FOR DIAGNOSING THE OPENING OF THE RELAYS OF A BATTERY OF A HYBRID POWERTRAIN
(FR) PROCÉDÉ DE DIAGNOSTIC DE L'OUVERTURE DES RELAIS D'UNE BATTERIE D'UN GROUPE MOTOPROPULSEUR HYBRIDE
Abstract
(EN) A method for diagnosing a hybrid powertrain (1) of a motor vehicle, comprising - instructing (21) the opening of the controlled relay (19) so as to insulate the battery of the DC voltage bus; - instructing (24) the control member to adjust the DC voltage bus to the diagnosis voltage; - diagnosing (26) the opening of the relay according to the following conditions: - if, over the predefined duration of the sliding window, the voltage of the DC voltage bus has followed the diagnosis voltage with a deviation less than or equal to the amplitude of the defined threshold, diagnosing that the relay is open; and - if, during the predefined duration, the voltage of the DC voltage bus deviates from the diagnosis voltage by a deviation greater than the amplitude of the defined threshold, diagnosing that the relay is not correctly opened.
(FR) Procédé de diagnostic d'un groupe motopropulseur hybride (1) d'un véhicule automobile, comprenant - Commander (21) l'ouverture dudit relais commandé (19) de sorte à isoler la batterie du bus de tension continue; - Commander (24) à l'organe de régulation la régulation du bus de tension continue à ladite tension de diagnostic; - Diagnostiquer (26) l'ouverture du relais en fonction des conditions suivantes : o Si sur la durée prédéfinie de ladite fenêtre glissante, la tension du bus de tension continue a suivi la tension de diagnostic avec un écart inférieur ou égal à l'amplitude de seuil définie, diagnostiquer que ledit relais est ouvert; et o Si au cours de la durée prédéfinie la tension du bus de tension s'est écartée de la tension de diagnostic d'un écart supérieur à l'amplitude de seuil définie, diagnostiquer que ledit relais n'est pas correctement ouvert.
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