PROBLEM TO BE SOLVED: To provide a four-wheel vehicle capable of adequately realizing quick behavior performance in rear-wheel steering control even when parking in a parking slot and traveling on a bottleneck road.SOLUTION: A four-wheel vehicle 11, having a steering function capable of wheel-steering all of four wheels, includes: a front-wheel steering actuator 65 for giving steering force when steering a front wheel 13; a rear-wheel steering actuator 67 for giving steering force when steering a rear wheel 15; a drive control part 49 for controlling drives of the front-wheel steering actuator 65 and rear-wheel steering actuator 67; and a guide support control part 51 for performing support control to guide the four-wheel vehicle 11 along a given route in conjunction with the drive control part 49. While the guide support control part 51 performs the support control, the drive control part 49 sets a target value of a drive control amount related to the rear-wheel steering actuator 67 with a larger value than a target value (a standard value) when the guide support control part 51 performs no support control.

    【課題】駐車場での車庫入れ時や隘路走行時であっても、後輪転舵制御に係る機敏な挙動性能を十分に発揮可能な4輪車両を提供する。【解決手段】4輪すべての操舵が可能な操舵機能を有する4輪車両11である。4輪車両11は、前輪13を転舵する際の転舵力を付与する前輪転舵アクチュエータ65と、後輪15を転舵する際の転舵力を付与する後輪転舵アクチュエータ67と、前輪転舵アクチュエータ65及び後輪転舵アクチュエータ67の駆動制御を行う駆動制御部49と、駆動制御部49と連係しながら4輪車両11を所定の経路に沿って誘導する支援制御を行う誘導支援制御部51と、を備える。駆動制御部49は、誘導支援制御部51が支援制御を行っている際、後輪転舵アクチュエータ67に係る駆動制御量の目標値を、誘導支援制御部51が支援制御を行っていない際のそれ(標準値)と比べて拡大設定する。【選択図】図1


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    Title :

    FOUR-WHEEL VEHICLE


    Additional title:

    4輪車両


    Contributors:

    Publication date :

    2015-12-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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