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.
PROCÉDÉ DE DIAGNOSTIC DE L'OUVERTURE DES RELAIS D'UNE BATTERIE D'UN GROUPE MOTOPROPULSEUR HYBRIDE
METHOD FOR DIAGNOSING THE OPENING OF THE RELAYS OF A BATTERY OF A HYBRID POWERTRAIN
VERFAHREN ZUR DIAGNOSE DER ÖFFNUNG DER RELAIS EINER BATTERIE EINES HYBRIDEN ANTRIEBSSTRANGS
2024-07-03
Patent
Electronic Resource
French
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / H01H Elektrische Schalter , ELECTRIC SWITCHES |
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