ENERGETIC OPTIMIZATION OF PROPULSION SYSTEMS FOR ELECTRIC VEHICLES

ENERGETISCHE OPTIMALISERING VAN AANDRIJFSYSTEMEN VOOR ELEKTRISCHE VOERTUIGEN

Various studies showed that a separately-excited DC motor provides the best combination of efficiency, performance, production cost and system reliability for a near-term electric vehicle. The research described in this thesis concerns investigations into propulsion systems suitable for electric vehicles. Preliminary investigations into the energetical aspects of electric vehicles have proved that - particularly in the case of regenerative braking - the characteristics of the propulsion system strongly influence the energy consumption. Starting from the separately-excited DC motor various drive trains are described. Simulation results for different drive trains are discussed. The main conclusions drawn from these studies can be summarized as follows: (1) from an energetical point of view a propulsion train using a variable gear ratic in general has to be preferred to a drive system with a fixed gear ratio; (2) the high operational comfort of the power train with the modified automatic gearbox is paid for with a relatively high energy consumption in comparison with the drive train using a manual gearbox; (3) the operating range appears to depend on both peak power requirement and average energy used per kilometre; so power train matching with respect to the peak power demand is strongly recommended; (4) this simulation program allows an accurate comparison of vehicle drive trains, while component deficiencies are clearly demonstrated. (Author/TRRL)

• Corporate Authors:

  Dissertatiedrukkerij Wibro

  Zeenaaidplantsoen 2
  Helmond,   Netherlands 
• Publication Date: 1983

Language

• Dutch

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: n.p.

Subject/Index Terms

• TRT Terms: Acids; Costs; Digital computers; Direct current motors; Economic efficiency; Electric batteries; Electric vehicles; Energy consumption; Lead (Metal); Loads; Propulsion; Regenerative braking; Reliability; Simulation; Speed; Theses; Traction drives; Transmissions; Vehicle power plants
• Uncontrolled Terms: Efficiency; Propulsion systems
• ITRD Terms: 7351: Acid; 1315: Battery; 224: Cost; 8673: Digital computer; 5911: Efficiency; 1282: Electric vehicle; 7138: Lead (metal); 5567: Load; 3873: Propulsion; 9103: Simulation; 5408: Speed; 8597: Thesis; 1333: Transmission (veh)
• Subject Areas: Economics; Energy; Finance; Highways; Public Transportation; Vehicles and Equipment; I91: Vehicle Design and Safety;

Filing Info

• Accession Number: 00382780
• Record Type: Publication
• Source Agency: Institute for Road Safety Research, SWOV
• Report/Paper Numbers: Thesis
• Files: ITRD, TRIS
• Created Date: Apr 30 1984 12:00AM