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1. WO2022002800 - IDENTIFYING AN UNBALANCED LOAD IN A HIGH-VOLTAGE SYSTEM AND RESPONSE THERETO

Publication Number WO/2022/002800
Publication Date 06.01.2022
International Application No. PCT/EP2021/067570
International Filing Date 25.06.2021
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 3/04 2006.1
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
04Cutting-off the power supply under fault conditions
B60L 50/50 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
Applicants
  • DAIMLER AG [DE]/[DE]
Inventors
  • AURAND, Tobias
  • ZIMMER, Markus
Agents
  • SCHEIDLE, Thorsten
Priority Data
10 2020 003 948.001.07.2020DE
10 2020 006 919.311.11.2020DE
Publication Language German (de)
Filing Language German (DE)
Designated States
Title
(DE) ERMITTELN EINER SCHIEFLAST IN EINEM HOCHVOLTSYSTEM UND REAKTION DARAUF
(EN) IDENTIFYING AN UNBALANCED LOAD IN A HIGH-VOLTAGE SYSTEM AND RESPONSE THERETO
(FR) IDENTIFICATION D'UNE CHARGE DÉSÉQUILIBRÉE DANS UN SYSTÈME À HAUTE TENSION ET RÉPONSE À CELLE-CI
Abstract
(DE) Gemäß einem Verfahren zum Ermitteln einer Information über eine elektrische Schieflast eines Fahrzeugs mit zumindest teilweise elektrifiziertem Antriebsstrang, welches über mindestens ein Hochvoltsystem (1) verfügt, wird eine eine Energiemenge eines Y- Kondensators (C1, C2) des Hochvoltsystems (1) charakterisierende Größe bestimmt. Außerdem wird ein Schwellwert in Bezug auf eine Kapazität des Y-Kondensators (C1, C2) bereitgestellt. Schließlich wird die Information über die elektrische Schieflast mittels Vergleich der bestimmten charakterisierenden Größe mit dem bereitgestellten Schwellwert ermittelt.
(EN) According to a method for determining information about an electric unbalanced load in a vehicle having an at least partially electrified drive train and having at least one high-voltage system (1), a variable characterizing an energy quantity of a Y capacitor (C1, C2) of the high-voltage system (1) is determined. Furthermore, a threshold value relating to a capacitance of the Y capacitor (C1, C2) is provided. Finally, the information about the electric unbalanced load is determined by comparing the characterizing variable determined with the threshold value provided.
(FR) Selon un procédé de détermination d'informations concernant une charge déséquilibrée électrique dans un véhicule équipé d'une chaîne cinématique au moins partiellement électrifiée et comprenant au moins un système à haute tension (1), une grandeur caractérisant une quantité d'énergie d'un condensateur Y (C1. C2) du système à haute tension (1) est déterminée. En outre, l'invention concerne une valeur de seuil relative à une capacité du condensateur Y (C1. C2). Enfin, les informations concernant la charge déséquilibrée électrique sont déterminées par comparaison de la grandeur de caractérisation déterminée avec la valeur de seuil fournie.
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