fbpx

Lux Research: market for 48-Volt micro-hybrids poised for major growth

According to a new forecast by Lux Research, automakers will begin producing 48-Volt micro-hybrids in 2015, and the market is likely to exceed 7 million vehicles by 2024. Lux believes that 48 V power systems represent an unfilled niche between 12 V start-stop micro-hybrids and larger mild hybrid systems.

48V Micro-hybrid (LUX)

As the number of production models using micro-hybrid technology grows, an increasing number of auxiliary loads will be moved onto the 48 V system, including the water pump, engine fan, auxiliary heater, AC compressor, vacuum pump, fuel pump, audio amplifier and power steering.

As yet, no particular 48 V power system architecture has emerged as the clear winner. One key question for the segment concerns the best form of energy storage. The first 48 V micro-hybrid models are using Li-ion batteries with traditional anodes, and once an automaker commits to a battery chemistry, it is likely to continue with that chemistry choice for at least one automotive product cycle – about five years.

However, Lux predicts that by the 2020s other chemistries will emerge to displace Li-ion batteries with conventional carbon anodes, and lithium-titanate (LTO) will be the preferred system for 48 V micro-hybrids. LTO cells have a lower energy density than other Li-ion chemistries, but are able to charge and discharge faster, which is more critical for micro-hybrid applications.

 

Source: Lux Research via Green Car Congress
Image courtesy of Johnson Controls

Comments
Create Account. Already Registered? Log In

EV Engineering Webinars

The free webinar sessions from our Spring 2022 Virtual Conference are now available to view on-demand. Register for a session below to watch the recording and download the presentation.

LOAD MORE SESSIONS