Wake-up process for electrical networks in a vehicle having an electrical drive train
US-2023010616-A1 · Jan 12, 2023 · US
Automotive electric auxiliary device
US12434643B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12434643-B2 |
| Application number | US-202118684695-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 20, 2021 |
| Priority date | Aug 20, 2021 |
| Publication date | Oct 7, 2025 |
| Grant date | Oct 7, 2025 |
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- Title
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Abstract
Official abstract text for this publication.
An automotive electric auxiliary device includes an electronic high-voltage motor which is 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 wakes-up the electronic high-voltage power circuit. The wake-up unit includes a low-voltage wake-up input port which receives a single wake-up flank, and an inductive coupling element which inductively transmits the single wake-up flank to a releasable latch unit. The releasable latch unit 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.
First claim
Opening claim text (preview).
What is claimed is: 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. 2. The automotive electric auxiliary device as recited in claim 1 , wherein the electronic high-voltage power circuit comprises a reset device for resetting the releasable latch unit so as to generate a constant non-activity signal level for indicating a sleeping mode to the electronic high-voltage power circuit. 3. The automotive electric auxiliary device as recited in claim 2 , wherein the reset device comprises a reset transistor which resets the releasable latch unit so as to generate the set constant high-voltage non-activity signal level. 4. The automotive electric auxiliary device as recited in claim 3 , wherein the reset transistor is configured to turn off the thyristor. 5. The automotive electric auxiliary device as recited in claim 1 , wherein, the inductive coupling element is defined by a low-voltage inductive coil and a high-voltage inductive coil which have a common iron core, and the low-voltage inductive coil and the high-voltage inductive coil have an identical number of windings. 6. The automotive electric auxiliary device as recited in claim 1 , further comprising: an anti-interference diode which is arranged within the electronic high-voltage power circuit between the inductive coupling element and the releasable latch unit, the anti-interference diode being configured to reduce interference signals. 7. The automotive electric auxiliary device as recited in claim 1 , further comprising: a low-voltage supply sensor which is configured to detect a vehicle-sided control voltage supply, wherein, the electronic low-voltage control circuit is connected to the low-voltage supply sensor.
Assignees
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Classifications
for DC powered loads · CPC title
DC supplies with two or more different DC voltage levels · CPC title
- B60R16/03Primary
for supply of electrical power to vehicle subsystems {or for (circuit arrangements for charging batteries H02J7/00)} · CPC title
- B60L58/20Primary
having different nominal voltages · CPC title
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- What does patent US12434643B2 cover?
- An automotive electric auxiliary device includes an electronic high-voltage motor which is 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 wakes-up the electronic high-voltage power circuit. The wake-up unit includes a low-voltage wake-up input po…
- Who is the assignee on this patent?
- Pierburg Pump Technology Gmbh
- What technology area does this patent fall under?
- Primary CPC classification B60R16/03. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Oct 07 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).