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 reports review 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?
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