| 发明名称 | Determination of running resistance for a vehicle | ||
| 摘要 | A method and a system for determining a running resistance Fres for a vehicle. A model-based running resistance Fres,mod is estimated. Thereafter an energy change difference ΔWdiff between a model-based estimated energy change ΔWpred and an actual energy change ΔWreal is determined for the vehicle from a starting point to an end point of a distance S which is traveled by the vehicle. A braking force Funknown which is unknown to the model and which acts upon the vehicle over the distance S is also determined on the basis of the energy change difference ΔWdiff. Thereafter the running resistance Fres is determined to an adjusted value of the model-based estimate of the running resistance Fres,mod, the adjustment being based on the braking force Funknown which is unknown to the model. | ||
| 申请公布号 | US9043074(B2) | 申请公布日期 | 2015.05.26 |
| 申请号 | US201214126041 | 申请日期 | 2012.06.15 |
| 申请人 | Scania CV AB | 发明人 | Södergren Maria;Evaldsson Martin |
| 分类号 | B60T8/172;B60W30/00;G06F17/50;B60W40/10;G01M17/007;B60W30/14;B60W50/00 | 主分类号 | B60T8/172 |
| 代理机构 | Ostrolenk Faber LLP | 代理人 | Ostrolenk Faber LLP |
| 主权项 | 1. A method for controlling at least one of a gearbox of a vehicle and a cruise control system of the vehicle by determining a running resistance Fres for the vehicle, the method comprising: providing an estimated running resistance estimated according to a calculation based on a model; receiving, by an automated processor, an actual vehicle speed parameter for a first distance travelled by the vehicle, the first distance measured from a starting point to an end point; calculating an actual energy change for the vehicle based on the received actual vehicle speed parameter; determining, by the automated processor, an energy change difference ΔWdiff between an estimated energy change according to the calculation based on the model and the actual energy change for said vehicle; based on said energy change difference ΔWdiff, determining a first braking force which is unknown to the model and which acts upon said vehicle over said first distance; determining said running resistance Fres to an adjusted value of said estimated running resistance, said adjusted value is based on said first braking force; and controlling at least one of the gearbox and the cruise control according to the running resistance Fres. | ||
| 地址 | SE | ||