Optimization of Vehicle Electrical Energy Consumption

Paper #:
  • 2015-01-2882

Published:
  • 2015-09-29
DOI:
  • 10.4271/2015-01-2882
Citation:
Shah, A., Karthick, R., Aravindan, V., Phegade, S. et al., "Optimization of Vehicle Electrical Energy Consumption," SAE Technical Paper 2015-01-2882, 2015, doi:10.4271/2015-01-2882.
Pages:
8
Abstract:
This paper focuses on optimizing the electrical energy consumption of vehicle. By introduction three concepts. 1) Innovative speed control logic for radiator fan motor according to vehicle speed and air flow through radiator. 2) Introducing regeneration of energy from radiator fan motor while free running and deceleration of vehicle. 3) Using BLDC motors (generation mode and motoring mode) in radiator and blower motors.About 50 % of total electrical energy consumption of vehicle is contributed by radiator fan motor and blower motor (proven data by performing alternator charge balance test during NEDC cycle). By introducing above three concepts, 50 % electrical energy consumption can be reduced to 25 - 30 %, which gives more than 3.5 % fuel economy improvement and more than 10 gmCO2 reduction per kilometer.Further reduction in conducted emission at motor level, soft starting for radiator fan and blower motor and elimination of high inrush current.
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