48 Volt Systems for Stop-Start Vehicles and Micro Hybrids

Stop-start vehicle systems are becoming popular in most regions of the world and the feature is becoming a standard fitment for a few manufacturers in some markets. The latest systems are starting to implement some of the features that were first developed for full hybrid vehicles, such as regenerative braking and electric power assistance. The challenge for OEMs is to get the most efficiency benefits from the smallest cost increment, and some have now concluded that the current 12V electrical system is becoming an inhibitor.

Growth in light duty 48V systems sales through the end of the current decade will be predominately in Western Europe, mainly because this region is the most aggressive in implementing fuel economy and emissions regulations. The German luxury vehicle manufacturers have collaborated to develop a 48V system that sets the foundation for more capable stop-start systems that will enable other electrification features. The latter features are expected to combine with engine downsizing and other enhancements to increase efficiency without large-scale adoption of full hybrid or plug-in electric capability. Navigant Research forecasts that total global sales for light duty vehicles with 48V electrical subsystems will reach nearly 13.5 million by 2023.

This Navigant Research report analyzes the opportunities and challenges for 48V electrical subsystems in vehicles. The study provides an examination of the reasons to move to a higher voltage for stop-start component systems, including the options for energy storage. Global forecasts are provided for light duty vehicle sales that feature 48V systems by world region through 2023. The report also provides a summary of the benefits, drivers, and market barriers for 48V systems, as well as profiles of the key market players that are promoting this technology.

Key Questions Addressed:
  • Why are 48V systems being considered for stop-start vehicles (SSVs)?
  • Which companies are pushing the adoption of 48V electrical systems?
  • What configurations of 48V systems can be expected in the future?
  • How quickly will the 48V market grow and how will it compare to and complement the SSV markets?
  • Who are the key players in the 48V technology market?
  • What are the additional benefits to expect from 48V over the current stop-start systems?
Who needs this report?
  • Vehicle manufacturers
  • Vehicle component suppliers
  • Battery manufacturers
  • Ultracapacitor manufacturers
  • Fleet managers
  • Government agencies
  • Investor community

Table of Contents

1. Executive Summary

2. Market Update

2.1   Why 48 Volts?

2.2   A Little History

2.3   The benefits of 48V Systems

2.4   Challenges

2.5   Key Players

2.5.1   The Advanced Lead-Acid Battery Consortium

2.5.2   Audi

2.5.3   BMW

2.5.4   Bosch

2.5.5   BYD

2.5.6   Continental

2.5.7   Controlled Power Technologies

2.5.8   Delphi

2.5.9   Eberspaecher

2.5.10   EIG

2.5.11   FEV

2.5.12   General Motors

2.5.13   Hella

2.5.14   Infineon Technologies

2.5.15   Johnson Controls, Inc.

2.5.16   Leyden Energy

2.5.17   PowerGenix

2.5.18   Ricardo

2.5.19   Schaeffler

2.5.20   SK Continental E-motion

2.5.21   Valeo

2.6   Industry Projects

2.6.1   LC Super Hybrid

2.6.2   ADEPT Project

2.6.3   48V Town & Country Hybrid Powertrain

3. Conclusions and Recommendations

3.1   Forecasts

3.2   Conclusions

3.3   Recommendations

List of Charts and Figures

  • 48V System Installations by Region, World Markets: 2013-2023
  • Bosch’s Evolution of Electrification Features 48V Micro Hybrid
  • 48V Systems Market Penetration in Light Duty Vehicles by Region, World Markets: 2013-2023

Report Details

  • Pages: 14
  • Tables, Charts,
  • Release Date: 4Q 2013

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