PROBLEM TO BE SOLVED: To support driving in response to dynamic change characteristics of turning behavior.SOLUTION: In a predetermined coordinate system, a relationship between a slip angle β of a tire and lateral force Fy, constituting a reference characteristic, is specified as a reference characteristic line Lr. Then, referring to the reference characteristic line Lr, an inclination of a tangential line at a coordinate position corresponding to the slip angle β or lateral force Fy is calculated as first cornering power K1. Then, using the first cornering power K1, a vehicular target stability factor Ais set, and in accordance with the vehicular target stability factor A, a vehicular turning-travel is drive-controlled. Furthermore, the target stability factor Ais set so as to proportionately enhance a vehicular under-steering characteristic as the first cornering power K1 decreases.
【課題】旋回挙動の動的な変化特性に応じた運転支援を行う。【解決手段】予め定めた座標系で、基準特性となるタイヤのスリップ角β及び横力Fyの関係を、基準特性線Lrとして規定する。そして、基準特性線Lrを参照し、スリップ角β又は横力Fyに対応する座標位置での接線の傾きを、第一のコーナリングパワーK1として算出する。そして、第一のコーナリングパワーK1を用いて、車両の目標スタビリティファクタA*を設定し、この目標スタビリティファクタA*に応じて、車両の旋回走行を駆動制御する。なお、第一のコーナリングパワーK1が小さいほど、車両のアンダーステア特性が強まるように目標スタビリティファクタA*を設定する。【選択図】図1
VEHICULAR TURNING-TRAVEL CONTROL APPARATUS AND VEHICULAR TURNING-TRAVEL CONTROL METHOD
車両用旋回走行制御装置、車両用旋回走行制御方法
2015-11-12
Patent
Electronic Resource
Japanese
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 / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / B62D MOTOR VEHICLES , Motorfahrzeuge |
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