Advanced 48V Battery for Hybrid Non-Road Powertrains
Many non-road powertrains will be equipped with 48-volt electrical systems. They'll power stop-start motors, hybrid motors, and turbochargers, enabling for smaller engines that are more fuel efficient and perform better. They will manage mechanical or hydraulic power to electric power accessories such as power steering, power brakes, water pump, radiator cooling, and air conditioning.
These will be 12-volt/48-volt systems, with 12 volts for infotainment and 48 volts for more power-hungry components.
What 48 volts are capable of: low-cost mild hybrid
The future non-road powertrains will very certainly include a start-stop mechanism, presumably 12 volts, and a somewhat larger 12-volt battery. The motor shuts off after a few seconds when it comes to a halt at a red light. On some powertrains, it restarts with a slight hesitation, a couple tenths of a second. The engine seems shaky at a stoplight. With a 48-volt stop-start system:
• A motor generator unit (MGU), belt alternator starter, or belt-driven starting generator replaces the starter with a beefier 48-volt device.
• A 48-volt lithium-ion battery pack, which is usually found in the trunk.
• A direct-current-to-direct-current converter.
In effect, the driver has received a mild hybrid powertrain that operates in tandem with the combustion engine.
What 48 volts are capable of: e-charger to boost acceleration
A cylinder powertrain with a turbocharger has the performance of a turbocharged engine. However, there is lag, those tenths of a second as the turbo spools up to 100,000-200,000 rpm and pumps more air into the engine. Almost every review defines turbo lag as "barely discernible," which really means "noticeable" while trying to pass on a two-lane road or cross the railroad lines as the signal lights begin to flicker.
Enter the electric turbocharger/supercharger, sometimes known as an e-charger. Rather than waiting for exhaust gases to gradually bring the impeller up to speed, an electric motor accelerates the process such that the lag is scarcely discernible. A 48-volt system is also required for this.
Why 48 volts?
Despite the fact that the powertrain requires more power, 48 volts may allow for lighter wire harnesses. At 48 volts, a wire of a particular size may transport four times the power of a 12-volt system. In a direct current system, power (watts) equals volts multiplied by amps. A 12-volt cable restricted (regulated) by a 15-amp fuse might transport 180 watts. When the power is increased to 48 volts, the same cable may transmit 720 watts.
When 42volt systems were first attempted in the late 1990s, the emphasis was on supplying more power to the car.
The primary goal is to reduce the vehicle's emissions and fuel economy. 48-volt is a technology that augments the combustion engine to minimize fuel consumption, [diesel] particulate emissions, and improve the driver experience by enhancing vehicle responsiveness.
Visit our website to know more: https://bit.ly/3UZP3yg
For more information and group participation, contact us: [email protected]
Leadvent Group - Industry Leading Events for Business Leaders!
www.leadventgrp.com| [email protected]
