Improvement of Fuel Efficiency of Passenger Cars by Taking Advantage of Tribology
The study conducted by a study group on the prediction of car fuel savings realized through tribology development organized by the Japan Society of Tribologists showed that the fuel loss caused by tires was 7.5% for constant velocity running at 60 km/h. Furthermore, the Japan Automobile Tyre Manufac...
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| Format: | Article |
| Language: | English |
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Japanese Society of Tribologists
2017-07-01
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| Series: | Tribology Online |
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| Online Access: | https://www.jstage.jst.go.jp/article/trol/12/3/12_76/_pdf/-char/en |
| _version_ | 1818432484951457792 |
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| author | Takashi Nakamura |
| author_facet | Takashi Nakamura |
| author_sort | Takashi Nakamura |
| collection | DOAJ |
| description | The study conducted by a study group on the prediction of car fuel savings realized through tribology development organized by the Japan Society of Tribologists showed that the fuel loss caused by tires was 7.5% for constant velocity running at 60 km/h. Furthermore, the Japan Automobile Tyre Manufacturers Association estimates that the contribution rate of the reduction in tire rolling resistance to fuel savings is between 20 to 25% in the case of constant velocity running, and these figures cannot be explained if we consider the fuel loss of tires alone. The study group adopted a threefold improvement in fuel economy, as it reduces both the exhaust and cooling losses in the same ratio. In addition, the study group proposed a novel retroactive effect, which states that reduction of downstream elements’ losses decreases the upstream elements’ losses. The contribution rates of the individual elements to the fuel consumption can be calculated by taking the threefold improvement and the retroactive effect into consideration. |
| first_indexed | 2024-12-14T16:05:56Z |
| format | Article |
| id | doaj.art-9e1eb7afb30b49628e3c2eddf0da8fce |
| institution | Directory Open Access Journal |
| issn | 1881-2198 |
| language | English |
| last_indexed | 2024-12-14T16:05:56Z |
| publishDate | 2017-07-01 |
| publisher | Japanese Society of Tribologists |
| record_format | Article |
| series | Tribology Online |
| spelling | doaj.art-9e1eb7afb30b49628e3c2eddf0da8fce2022-12-21T22:55:06ZengJapanese Society of TribologistsTribology Online1881-21982017-07-01123768110.2474/trol.12.76trolImprovement of Fuel Efficiency of Passenger Cars by Taking Advantage of TribologyTakashi Nakamura0Department of Mechanical Engineering, Nagoya Institute of TechnologyThe study conducted by a study group on the prediction of car fuel savings realized through tribology development organized by the Japan Society of Tribologists showed that the fuel loss caused by tires was 7.5% for constant velocity running at 60 km/h. Furthermore, the Japan Automobile Tyre Manufacturers Association estimates that the contribution rate of the reduction in tire rolling resistance to fuel savings is between 20 to 25% in the case of constant velocity running, and these figures cannot be explained if we consider the fuel loss of tires alone. The study group adopted a threefold improvement in fuel economy, as it reduces both the exhaust and cooling losses in the same ratio. In addition, the study group proposed a novel retroactive effect, which states that reduction of downstream elements’ losses decreases the upstream elements’ losses. The contribution rates of the individual elements to the fuel consumption can be calculated by taking the threefold improvement and the retroactive effect into consideration.https://www.jstage.jst.go.jp/article/trol/12/3/12_76/_pdf/-char/entribologypassenger carfuel efficiencyimprovementpower trainretroactive effect |
| spellingShingle | Takashi Nakamura Improvement of Fuel Efficiency of Passenger Cars by Taking Advantage of Tribology Tribology Online tribology passenger car fuel efficiency improvement power train retroactive effect |
| title | Improvement of Fuel Efficiency of Passenger Cars by Taking Advantage of Tribology |
| title_full | Improvement of Fuel Efficiency of Passenger Cars by Taking Advantage of Tribology |
| title_fullStr | Improvement of Fuel Efficiency of Passenger Cars by Taking Advantage of Tribology |
| title_full_unstemmed | Improvement of Fuel Efficiency of Passenger Cars by Taking Advantage of Tribology |
| title_short | Improvement of Fuel Efficiency of Passenger Cars by Taking Advantage of Tribology |
| title_sort | improvement of fuel efficiency of passenger cars by taking advantage of tribology |
| topic | tribology passenger car fuel efficiency improvement power train retroactive effect |
| url | https://www.jstage.jst.go.jp/article/trol/12/3/12_76/_pdf/-char/en |
| work_keys_str_mv | AT takashinakamura improvementoffuelefficiencyofpassengercarsbytakingadvantageoftribology |