US 12,459,399 B2
On-board electrical system for an electric vehicle
Heza Sorani, Västra Frölunda (SE); Nils Höglund, Gothenburg (SE); and Fehmi Fetiu, Gothenburg (SE)
Assigned to Ningbo Geely Automobile Research & Dev. Co., Ltd., Ningbo (CN); and Zhejiang Geely Holding Group Co., Ltd., Zhejiang (CN)
Filed by Ningbo Geely Automobile Research & Development Co., Ltd., Ningbo (CN); and Zhejiang Geely Holding Group Co., Ltd., Zhejiang (CN)
Filed on Jul. 22, 2024, as Appl. No. 18/779,242.
Application 18/779,242 is a continuation of application No. PCT/CN2023/072829, filed on Jan. 18, 2023.
Claims priority of application No. 22153346 (EP), filed on Jan. 25, 2022.
Prior Publication US 2024/0375545 A1, Nov. 14, 2024
Int. Cl. B60L 58/20 (2019.01); B60L 3/00 (2019.01)
CPC B60L 58/20 (2019.02) [B60L 3/0046 (2013.01); B60L 3/0069 (2013.01); B60L 2210/10 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An on-board electrical system for an electric vehicle comprising:
a high-voltage electrical power supply including a high-voltage electrical storage system connected in series with a high-voltage switch,
a first low-voltage power supply including a first low-voltage electrical storage system connected in series with a first electrical switch,
second low-voltage power supply including a second low-voltage electrical storage system connected in series with a second electrical switch,
a first DC/DC converter connected to the high-voltage electrical power supply and to the first low-voltage power supply via a first low-voltage DC bus,
a second DC/DC converter connected to the high-voltage electrical power supply and to the second low-voltage power supply via a second low-voltage DC bus,
a first master electronic control unit connected to the first low-voltage DC bus for power supply and configured to controlling operation of the first electrical switch,
a second master electronic control unit connected to the second low-voltage DC bus for power supply and configured to controlling operation of the second electrical switch,
a first wake-up electrical connector arrangement suitable for being temporarily connected a low-voltage jump-starter device,
a first wake-up electrical line connecting the first wake-up electrical connection arrangement with the first low-voltage DC bus,
a second wake-up electrical line connecting the first wake-up electrical connector arrangement with the second low-voltage DC bus.