US 12,434,643 B2
Automotive electric auxiliary device
Frank Buerger, Neuss (DE); and Martin Mueller, Neuss (DE)
Assigned to PIERBURG PUMP TECHNOLOGY GMBH, Neuss (DE)
Appl. No. 18/684,695
Filed by PIERBURG PUMP TECHNOLOGY GMBH, Neuss (DE)
PCT Filed Aug. 20, 2021, PCT No. PCT/EP2021/073175
§ 371(c)(1), (2) Date Feb. 19, 2024,
PCT Pub. No. WO2023/020704, PCT Pub. Date Feb. 23, 2023.
Prior Publication US 2024/0425003 A1, Dec. 26, 2024
Int. Cl. B60R 16/03 (2006.01)
CPC B60R 16/03 (2013.01) 7 Claims
OG exemplary drawing
 
1. An automotive electric auxiliary device comprising:
an electronic high-voltage motor which is configured to be driven by an electronic high voltage power circuit;
an electronic low-voltage control circuit which is galvanically isolated from the electronic high-voltage power circuit; and
a wake-up unit which is configured to wake-up the electronic high-voltage power circuit, the wake-up unit comprising,
a low-voltage wake-up input port which is configured to receive a single wake-up flank, and
an inductive coupling element which is configured to inductively transmit the single wake-up flank to a releasable latch unit 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, the releasable latch unit being a thyristor.