Legislative emissions requirements, customer expectation and environmental concerns are driving the introduction of Hybrid Electric Vehicle (HEV) technologies. In the European market, where diesel powertrain technology has high penetration, Micro Hybrid technology, featuring engine stop/start plus regenerative charging, is attractive due to system cost versus CO2 emission benefits. The availability of the engine stop/start feature in real world usage depends on the control logic taking account of, for example, safety, comfort or other factors. The research reported here involved developing tools to analyze the duration of automatic engine stop events in real world usage taking account of the situations where automatic engine stop would be unavailable. These tools help determine the durability requirements for key system components, in particular the battery, and estimation of the likely fuel savings as a function of the system calibration.
Stop-Start Micro Hybrid: An Estimation of Automatic Engine Stop Duration in Real World Usage
Sae Technical Papers
SAE World Congress & Exhibition ; 2009
2009-04-20
Aufsatz (Konferenz)
Englisch
Stop-start micro hybrid: an estimation of automatic engine stop duration in real world usage
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