The technology used within rotating electrics, particularly alternators, has become more advanced in response to an increasing number of electrical components being used in vehicles.

Vehicle makers are demanding alternators with improved power generation capacity to support vehicles' increased power consumption, and lighter products that improve fuel efficiency and reduce CO2 emissions.

In its latest annual report, Denso Corp states: ``One of the main priorities for starters is a reduction in size and weight. There is also a need for improvements in durability and starting performance to support increased starter use in eco-friendly vehicles, which have systems that automatically switch off vehicle engines during idling, for instance at red lights.`` According to recent research studies, vehicles are at a standstill for one-third of the time while in urban areas. Stop-start systems could help make cities quieter, boost fuel efficiency and reduce exhaust pipe emissions.
``Automakers [also] need alternators that combine reduced size and weight with improved power generation capacity to support increased electricity consumption in vehicles. The reduction of magnetic noise is also a priority from the viewpoint of cabin comfort.``

This third edition report from just-auto reviews the key market drivers for automotive starter motors and alternators, addressing issues such as:

* What are the main factors pushing drivers behind technical change affecting the integrated starter generators (ISG)?
* What does the future hold in terms of developing stop-start functions? What are the limiting factors?
* What are the main obstacles to overcome before ISG technology is rolled out across different car segments? Are starter motors and alternators as we know them really on the way out?
* Belt-driven starter-alternators have a number of advantages over crankshaft-mounted integrated devices, in particular cost. Will crankshaft systems ever emerge in any significant number?


Report Summary

Chapter 1: Introduction

Chapter 2: just-auto's product fitment forecasts predict in some detail how the market for rotating electrics will evolve in Europe, Japan and North America from 2002 through 2012. This chapter also includes our estimates and forecasts for the total (OES and independent) aftermarket for starter motors and alternators for passenger cars and light commercial vehicles (less than 3.5 ton) across the European Union.

Chapter 3: Although the electric starter motor and alternator has remained virtually unchanged since it was first invented more than 80 years ago, the quest for weight and fuel reduction has triggered a raft of refinements. An auto executive told us: ``One of the things happening in Europe is the pressure to reduce [the] physical size of starter motors. That is mainly due to the crowded space under the bonnet. Over the past 20 years, the weight of an average starter motor has fallen from 10kg to 2kg for the same output power.`` Read more about new product innovations in the technical review.

Chapter 4: Provides brief profiles of the major manufacturers, namely Bosch, Denso, Lucas Electrical, Mitsubishi Electric, Motorcar Parts of America, Prestolite Electric, Remy International, and Valeo.

Chapter 1 Introduction
All quiet on the urban front
Report coverage

Chapter 2 The market
Market trends
Market players
Bosch
Denso
Lucas Electrical
Mitsubishi Electric
Motorcar Parts of America
Prestolite Electric
Remy International
Valeo
Emerging markets
Market shares
Market forecasts

Chapter 3 Technical review
Defining the elements
Recent innovations - starter motors and alternators
Recent innovations - integrated starter-alternators
Q&A with Visteon

Chapter 4 Manufacturers
Bosch
Denso
Lucas Electrical
Mitsubishi Electric
Motorcar Parts of America Inc
Prestolite Electric
Remy International
Valeo

List of figures
Figure 1: Global market shares of OE alternator manufacturers for passenger cars and light truck applications, 2005 (% of sales volume)
Figure 2: Global market shares of OE starter motors manufacturers for passenger cars and light truck applications, 2005 (% of sales volume)
Figure 3: Bosch parallel starting system for large internal combustion engines
Figure 4: Valeo's StARS technology
Figure 5: ZF Sachs' DynaStart
Figure 6: Denso's integrated starter generator
Figure 7: Remy International's sales revenues by product category, 2004 and 2005 (% of net US$ sales)

List of tables
Table 1: Market value of OE alternators for passenger cars and light trucks, European Union¹, North America and Japan, 2002-2012 (EUR '000s)
Table 2: Market value of OE starter motors for passenger cars and light trucks, European Union¹, North America and Japan, 2002-2012 (EUR '000s)
Table 3: Market volume of OE alternators/starter motors for passenger cars and light trucks, European Union¹, North America and Japan, 2002-2012 (units '000s)
Table 4: Market volume of alternators for passenger cars distributed through the OES and independent aftermarket, Austria, Belgium, Denmark, Finland, France, Germany, Greece, Ireland, Italy, Netherlands, Portugal, Spain, Sweden and the UK, 2002-2012 (units '000s)
Table 5: Market volume of alternators for commercial vehicles (less than 3.5 ton) distributed through the OES and independent aftermarket, Austria, Belgium, Denmark, Finland, France, Germany, Greece, Ireland, Italy, Netherlands, Portugal, Spain, and Sweden and the UK, 2002-2012 (units '000s)
Table 6: Market volume of starter motors for passenger cars distributed through the OES and independent aftermarket, Austria, Belgium, Denmark, Finland, France, Germany, Greece, Ireland, Italy, Netherlands, Portugal, Spain, Sweden and the UK, 2002-2012 (units '000s)
Table 7: Market volume of starter motors for commercial vehicles (less than 3.5 ton) distributed through the OES and independent aftermarket, Austria, Belgium, Denmark, Finland, France, Germany, Greece, Ireland, Italy, Netherlands, Portugal, Spain, Sweden and the UK, 2002-2012 (units '000s)
Table 8: Denso's Electric Systems' net sales, 2000-2006 (JPYm)
Table 9: Denso Corp's starter and alternator production sites worldwide
Table 10: Valeo's Electrical Systems Branch facilities worldwide