US 12,391,145 B2
Electronic control unit for a vehicle with galvanically isolated supply voltages on a single printed circuit board
Radu Bunea, Pitesti (RO); Uwe Ulbrich, Obertrubach (DE); Robert Istvan Loerincz, Chisoda (RO); Catalin Purdel, Timisoara (RO); Michael Boehme, Wendelstein (DE); and Vlad Catalin Ruxandu, Turda (DE)
Assigned to Vitesco Technologies Germany GmbH, Regensburg (DE)
Filed by Vitesco Technologies Germany GmbH, Hannover (DE)
Filed on Feb. 7, 2022, as Appl. No. 17/666,048.
Application 17/666,048 is a continuation of application No. PCT/EP2020/071607, filed on Jul. 30, 2020.
Claims priority of application No. 19465542 (EP), filed on Aug. 6, 2019.
Prior Publication US 2022/0153167 A1, May 19, 2022
Int. Cl. B60R 16/00 (2006.01); B60L 58/20 (2019.01); B60R 16/03 (2006.01)
CPC B60L 58/20 (2019.02) [B60R 16/03 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An electronic control unit (ECU) for a vehicle, the electronic control unit comprising:
a 12V-domain designed to control an electric load supplied with a first supply voltage;
a 48V-domain designed to control an electric load supplied with a second supply voltage, the 12V-domain and the 48V-domain are arranged on a single printed circuit board (PCB), the 48V-domain comprises:
a 48V-microcontroller; and
a 48V-power supply supplying the 48V-microcontroller; and
a galvanically isolated data interface designed to transfer data between the domains according to a half-duplex or a full-duplex communication protocol, the galvanically isolated data interface galvanically isolates the 12V-domain and the 48V-domain from each other and connects the 12V-domain and the 48V-domain with each other;
wherein the 48V-power supply is powered by the first supply voltage from the 12V-domain via a galvanically isolated supply interface, and
wherein the 48V-domain comprises a 48V-load control designed to verify a status of the second supply voltage and/or a 48V-motor control designed to control at least one electric load supplied by the second supply voltage, wherein the 48V-microcontroller is arranged and configured such as to control the 48V-load control and/or the 48V-motor control.