To provide a driving force estimating device that can appropriately estimate driving force.SOLUTION: A driving force estimating device, which estimates driving force in a vehicle 1 for driving front wheels FW and rear wheels RW, is configured to comprise: a free rolling/rotating speed output part that outputs free rolling/rotating speeds of the front wheels and the rear wheels; an actual rotation speed detecting part that detects actual rotation speeds of the front wheels and the rear wheels; a slip rate calculating part that calculates slip rates of the front wheels and of the rear wheels from the free rolling/rotating speeds and the actual rotation speeds; a driving force estimating part that estimates driving force for the front wheels and the rear wheels using driving stiffness and the slip rates of the front wheels and the rear wheels; a slip angle output part that outputs slip angles of the front wheels and the rear wheels; and a stiffness correcting part that corrects driving stiffness that is used in estimating driving force in accordance with the slip angles.SELECTED DRAWING: Figure 11
【課題】駆動状態を適切に推定可能な駆動状態推定装置を提供する。【解決手段】前輪FW及び後輪RWを駆動する車両1における駆動力を推定する駆動力推定装置を、前後輪の自由転動回転速度を出力する自由転動回転速度出力部と、前後輪の実回転速度を検出する実回転速度検出部と、自由転動回転速度及び実回転速度から前輪及び後輪のスリップ率を演算するスリップ率演算部と、前後輪のドライビングスティフネスと、スリップ率とを用いて前後輪の駆動力を推定する駆動力推定部と、前後輪のすべり角を出力するすべり角出力部と、すべり角に応じて駆動力の推定に用いるドライビングスティフネスを補正するスティフネス補正部とを備える構成とする。【選択図】図11
DRIVING FORCE ESTIMATING DEVICE
駆動力推定装置
30.11.2023
Patent
Elektronische Ressource
Japanisch
IPC: | 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 / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES |
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