To provide a method for estimating wheel loads of a four-wheel drive vehicle by using a preset correlation between total weight obtained by varying a variety of movable loads of the vehicle, and at least either of a front wheel load and a rear wheel load.SOLUTION: A wheel load estimation method of a four-wheel vehicle which is driven by rotation drive means (6) comprises: a correlation setting step for setting in advance a correlation between total weight (W) obtained by varying a variety of movable loads of the vehicle, and at least either of the front wheel load (Wf) and a rear wheel load (Wr); a vehicle total weight calculation step for calculating current vehicle total weight from the output torque of the rotation drive means (6) and vehicle fore-and-aft acceleration corresponding to the output torque; and a wheel load estimation step for estimating at least wheel loads of drive wheels from the correlation and the vehicle total weight.SELECTED DRAWING: Figure 3
【課題】車両の積載荷重を種々変化させた総重量と、前輪車輪荷重と後輪車輪荷重の少なくとも一方の予め設定した相関関係を用いて四輪駆動車の車輪荷重を推定する方法を提供する。【解決手段】回転駆動手段(6)により駆動される四輪駆動車の車輪荷重推定方法において、車両の積載荷重を種々変化させた総重量(W)と、前輪車輪荷重(Wf) と後輪車輪荷重 (Wr) の少なくとも一方の相関関係を予め設定する相関関係設定ステップと、前記回転駆動手段(6)の出力トルクとこの出力トルクに対応する車両前後加速度とから現在の車両総重量を演算する車両総重量演算ステップと、前記相関関係と車両総重量とから、少なくとも駆動輪の車輪荷重を推定する車輪荷重推定ステップとを備えている。【選択図】 図3
WHEEL LOAD ESTIMATION METHOD OF FOUR-WHEEL DRIVE VEHICLE
四輪駆動車の車輪荷重推定方法
2019-03-22
Patent
Electronic Resource
Japanese
IPC: | B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion |
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