Vehicle running resistance calculation method and system
The invention discloses a vehicle running resistance calculation method and system. The vehicle running resistance calculation method comprises the steps that the vehicle speed v of a vehicle, the vehicle running environment temperature T, the real-time vehicle weight m and the vehicle running gradi...
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| Hauptverfasser: | , , , , , |
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention discloses a vehicle running resistance calculation method and system. The vehicle running resistance calculation method comprises the steps that the vehicle speed v of a vehicle, the vehicle running environment temperature T, the real-time vehicle weight m and the vehicle running gradient eta are obtained; according to the vehicle speed v and the real-time vehicle weight m, basic resistance F is calculated; according to the environment temperature T and the vehicle speed v, in a pre-calibrated three-axis MAP, a temperature compensation coefficient is obtained in a table look-up mode, the basic resistance F is corrected according to the temperature compensation coefficient, and the corrected basic resistance F1 is obtained; calculating slope resistance Fp according to the driving slope eta; and calculating the final resistance Ff of the whole vehicle according to the corrected basic resistance F1 and the slope resistance Fp. The technical problem that a large error exists between the running resi |
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