WARMING-UP AND FUEL CONSUMPTION OF PASSENGER CARS IN DIFFERENT DRIVING CONDITIONS

HENKILOAUTOMOOTTOREIDEN LAMPENEMINEN JA POLTTOAINEENKULUTUS ERI AJOTILANTEISSA

The aim of the experiments was to study the effect of outdoor temperature on the gasoline consumption and heating-up rate of passenger cars, and to obtain data on conditions in practice for the planning of experiments in the cold laboratory and for their evaluation. Driving tests were carried out with six different gasoline-driven passenger cars at +5 to -20 degrees celsius. As a rule, no cylinder block heater was used. Both cycle tests simulating city drive and road tests at a constant driving speed of about 80 kmph were carried out. The heating-up time and the fuel consumption in most cases increased, whilst the outdoor temperature fell. The differences were clear in fuel consumption, especially in the so-called city test in constant conditions. For example, the consumption was increased considerably in the snowfall. The use of block heater reduced both the heating-up time and the fuel consumption. In continuous driving of 5-10 km runs in city traffic the difference in fuel consumption compared to an unheated engine was as high as 2-3 litres per 100 km. In long-distance driving differences in fuel consumption due to heating and outdoor temperature may be hidden by other factors, such as traffic or road conditions. (TRRL)0

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9513826856
• Corporate Authors:

  Technical Research Centre of Finland

  Vuorimiehentie 5
  SF-02150 Espoo 15,   Finland 
• Authors:
  • Vakkilainen, A
• Publication Date: 1986

Language

• Finnish

Media Info

• Pagination: 135 p.
• Serial:
  • Publication of: Technical Research Centre of Finland
  • Issue Number: 617
  • Publisher: Technical Research Centre of Finland
  • ISSN: 1235-0605

Subject/Index Terms

• TRT Terms: Automobiles; Fuel consumption; Heaters; Starting (Driving); Temperature
• Old TRIS Terms: Warmup
• ITRD Terms: 1243: Car; 9116: Cold; 232: Fuel consumption; 6743: Heat; 1334: Motor; 6722: Temperature; 2545: Weather
• Subject Areas: Energy; Highways;

Filing Info

• Accession Number: 00470358
• Record Type: Publication
• Source Agency: VTT Technical Research Centre of Finland
• ISBN: 951-38-2685-6
• Files: ITRD, TRIS
• Created Date: Aug 31 1988 12:00AM