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A 48-volt DC electrical system voltage is a relatively low-voltage electrical system that is increasingly used in vehicles. It began in the 2010s as a way to increase the propulsion and battery recharge during braking for fuel savings in internal combustion engine vehicles, especially mild hybrid vehicles.
48-volt systems provide four times the power of traditional 12-volt systems, and higher voltages mean lower current draws and more efficient energy transfer. This allows automakers to use smaller ...
As such an 48-volt electrical system has been introduced. Most modern systems, such as power windows, power seats, and power door locks, are electrically powered. Electrically driven power steering systems have been developed and are used in numerous models. High-efficiency all-electric refrigerant compressors for air conditioning are starting ...
General Motors mild hybrids, including the Parallel Hybrid Truck (PHT) and numerous cars and SUVs equipped with the belt alternator starter (BAS) hybrid system, often use a 36- to 48-volt system to supply the power needed for the startup motor, as well as a source of power to compensate for the increasing number of electronic accessories on ...
Though most 911s will usher in the electrified era by way of a 48-volt electrical system powering an integrated starter-generator that complements the brand’s famous flat-six engine, the model ...
In the late 2000s, 42-volt electrical components were used in only a few automotive applications, since incandescent light bulbs work well at 12 volts and switching of a 42-volt circuit is more difficult. [1] [2] In the 2010s, 48-volt electrical systems became popular.