Naprava za testiranje prekinitev in kratkih stikov na električnih avtomobilskih komponentah

KRAPEŽ, ANDRAŽ (author), Jankovec, Marko (mentor)

V magistrskem delu je opisana zasnova in izdelava naprave za testiranje prekinitev in kratkih stikov na avtomobilskih komponentah, ki je namenjena uporabi v EMC laboratoriju podjetja MAHLE Electric Drives Slovenija d. o. o. Naprava je sestavljena iz 12 stikal za testiranje signalnih povezav, od katerih so štiri modificirane za možnost krmiljenja zunanjih stikal, štiri pa za možnost krmiljenja kontaktorjev za testiranje napajalnih povezav. Naprava je prek Ethernet povezave upravljana z računalniškim programom z grafičnim uporabniškim vmesnikom. Ta uporabniku omogoča enostaven vnos testne sekvence s sestavljanjem osnovnih celic in nastavljanje njihovih parametrov ter zagon same sekvence. Omogoča tudi ročno nastavljanje stanja stikal. Stikala za testiranje signalnih povezav delujejo dvosmerno in so primerna za tok do 12 A in napetost do 60 V, implementirano pa imajo tudi zaščito proti previsokem toku. Izmerjena vklopni čas 76 ns in izklopni čas 651 ns ter minimalni interval preklopa 10 µs so ustrezni, da je naprava lahko uporabljena za izvedbo električnih testov po standardih ISO 16750-2, LV 124, GMW3172, CVS41 in drugih. Stikala so ustrezna tudi za testiranje komunikacijskih signalov protokolov kot sta LIN in CAN.

• Language: Slovenian
• Keywords: električni testi, testna oprema, prekinjanje in kratkostičenje linij, dvosmerno stikalo
• Work type: Master's thesis/paper
• Typology: 2.09 - Master's Thesis
• Organization: FE - Faculty of Electrical Engineering
• Year: 2025
• PID: 20.500.12556/RUL-171391
• COBISS.SI-ID: 248792835
• Publication date in RUL: 25.08.2025

Secondary language

• Language: English
• Title: Design of a Device for Testing Interruptions and Short Circuit Events on Electrical Automotive Components

Abstract

The master's thesis describes the design and construction of a device for testing interruption and short circuit events on automotive components, which is intended for use in the EMC laboratory of the company MAHLE Electric Drives Slovenija d. o. o. The device consists of 12 switches for testing signal connections, four of which are modified to be able to control external switches, and four to be able to control contactors for testing power connections. The device is controlled via an Ethernet connection with a computer program with a graphical user interface, which allows the user to easily enter a test sequence by assembling basic cells, setting their parameters, and starting the sequence itself. It also allows setting the state of the switches in real time. The switches for testing signal connections operate bidirectionally and are suitable for currents up to 12 A and voltages up to 60 V. They also have protection against overcurrent. The measured switch-on time of 76 ns, switch-off time of 651 ns and the minimum switching interval of 10 µs are adequate for using the device for electrical tests according to ISO 16750-2, LV 124, GMW3172, CVS41 and other standards. The switches are also suitable for testing communication signals of protocols such as LIN and CAN.

• Keywords: electrical tests, test equipment, line interruption and line shorting, bidirectional switch