Abstract The invention relates to a secure communication method of wireless charging of an electric vehicle, applied to secure communication of a battery management system of an electric vehicle and a vehicle-mounted wireless charging device. According to the secure communication method, a hard wire is connected between the battery management system of an electric vehicle and the vehicle-mounted wireless charging device, during data 5 information transmission, a data sending node controls to pull down a hard wire signal at first, a data receiving node starts receiving data information after detecting the pulled-down hard wire signal, after the data information transmission, the data sending node controls to pull up the hard wire signal, and the data receiving node confirms the received data information to be valid after detecting the pulled-up hard wire signal. According to the secure communication method provided by the present invention, the identity authentication 10 of communication nodes is ensured by adding dual protection mechanisms of hardware signals and a hardware signal confirmation mechanism, and the security and the reliability of the data information transmission of the wireless charging of the electric vehicle are guaranteed. Start A data sending node prepares to send data The data sending node controls to pull down a hard wire signal The data sending node sends data A data receiving node No detects the pulled down hard wire signal Yes The data receiving node receives the data Data transmission No is completed Yes The data sending node controls to pull up the hard wire signal hedata receiving No noedetects the pulled-up hard wire siga The data receiving node confines the received data to be valid cEnd Fig. 2
A secure communication method of wireless charging of electric vehicle
2017-07-20
Patent
Elektronische Ressource
Englisch
IPC: | H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION , Übertragung digitaler Information, z.B. Telegrafieverkehr / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |
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Europäisches Patentamt | 2024
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