Title of article :
Valve-regulated lead-acid batteries for stop-and-go applications
Author/Authors :
G. J. May، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2004
Pages :
6
From page :
110
To page :
115
Abstract :
Increasing levels of demand for electrical power for vehicles have prompted a considerable level of research into higher voltage systems. This has resulted in the definition of preliminary standards for 36/42 V systems. The implementation costs for these systems are high and this has led to improvements in 12/14 V power architectures. In particular, alternator power outputs at 14 V have increased and the need for lower emission levels and fuel economy is stimulating a demand for stop-and-go systems. In this type of application, the engine is stopped each time the vehicle comes to a halt, and is restarted when the accelerator is pressed again. The duty cycle that this applies to the battery is quite onerous with many shallow discharge cycles. Flooded lead-acid batteries are unable to meet the requirements and valve-regulated lead-acid (VRLA) batteries are essential to meet the demands applied. The background to stop-and-go battery applications is considered and test results on practical batteries are presented to show that under a simulated duty cycle, good performance can be achieved. There is also a need for a higher level of battery management for stop-and-go systems. A practical approach to battery condition monitoring to assess the state-of-charge and state-of-health of the battery is described.
Keywords :
Valve-regulated lead-acid , 36/42 V PowerNet systems , state-of-charge , state-of-health , Powernet , Vehicles
Journal title :
Journal of Power Sources
Serial Year :
2004
Journal title :
Journal of Power Sources
Record number :
444950
Link To Document :
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