The invention is directed to an automotive electric auxiliary device (10) with an electronic high-voltage motor (12) driven by an electronic high-voltage power circuit (HVC), an electronic low-voltage control circuit (LVC) being galvanically isolated from the electronic high-voltage power circuit (HVC), and a wake-up unit (15) for waking-up the electronic high-voltage power circuit (HVC), the wake-up unit (15) comprising a low-voltage wake-up input port (41) for receiving a single wake-up flank, an inductive coupling element (20) for inductively transmitting the single wake-up flank to a releasable latch unit (30) which transforms the single wake-up flank to a set constant high-voltage activity signal level for indicating a non-sleeping mode to the electronic high-voltage power circuit (HVC). The invention allows to wake up a control unit (60) of the automotive electric coolant pump (10) from an energy-efficient sleeping mode.
AUTOMOTIVE ELECTRIC AUXILIARY DEVICE
ELEKTRISCHE HILFSVORRICHTUNG FÜR EIN KRAFTFAHRZEUG
DISPOSITIF AUXILIAIRE ÉLECTRIQUE AUTOMOBILE
2024-06-26
Patent
Elektronische Ressource
Englisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / 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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