US 12,445,323 B2
System and method for reducing a power consumption of a vehicle rear lamp
Pavel Moravec, Svinov (CZ); Krzysztof Gociek, Lyžbice (CZ); and Martin Korený, Hradec nad Moravicí (CZ)
Assigned to HELLA AUTOTECHNIK NOVA s.r.o., Mohelnice (CZ)
Filed by HELLA AUTOTECHNIK NOVA s.r.o., Mohelnice (CZ)
Filed on Jun. 7, 2023, as Appl. No. 18/330,881.
Claims priority of application No. CZ2022-265 (CZ), filed on Jun. 15, 2022.
Prior Publication US 2023/0412419 A1, Dec. 21, 2023
Int. Cl. H04L 12/40 (2006.01); B60Q 11/00 (2006.01)
CPC H04L 12/40039 (2013.01) [B60Q 11/007 (2013.01); H04L 2012/40215 (2013.01); H04L 2012/40234 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A system for reducing a power consumption of a vehicle rear lamp, the system comprising:
a vehicle data bus,
a power supply,
at least one light source, and
at least one rear lamp control unit connected to the at least one light source and powering the at least one light source,
a switch and a switch control unit connected to the switch, and the switch control unit selectively closing the switch and opening the switch,
wherein the at least one rear lamp control unit is connected to the vehicle data bus and the power supply,
wherein the switch is connected between the power supply and the at least one rear lamp control unit,
wherein the switch control unit is connected to the vehicle data bus,
wherein the switch control unit opens the switch in response to receiving a sleep request from the vehicle data bus or the at least one rear lamp control unit.