JPH0361477U

JPH0361477U -

Info

Publication number: JPH0361477U
Application number: JP12273589U
Authority: JP
Priority date: 1989-10-20
Filing date: 1989-10-20
Publication date: 1991-06-17
Anticipated expiration: 2004-10-20
Also published as: JP2514952Y2

Description

[Brief explanation of drawings]

第１図は本考案の構成を示すクレーム対応図、
第２図は本考案の実施例を示す構成図、第３図は
表示部の正面図、第４図はコントロールユニツト
で実行される学習動作を示すフロートチヤート、
第５図は後輪の操舵範囲と舵角データとの関係を
示す説明図、第６図は後輪操舵情況の判定動作を
示すフローチヤート、第７図は後輪操舵角の関係
を示す説明図である。１……ロツク解除エアシリンダ、２……舵角セ
ンサ、６，７……ロツクセンサ、１８……モード
切換ギヤボツクス、２１……前輪、２２……後輪
、２６……ギヤボツクス、２８……後輪操舵アク
チユエータ、４０……コントロールユニツト、４
１……表示部。 Figure 1 is a claim correspondence diagram showing the configuration of the present invention;
FIG. 2 is a block diagram showing an embodiment of the present invention, FIG. 3 is a front view of the display section, and FIG. 4 is a float chart showing the learning operation executed by the control unit.
Fig. 5 is an explanatory diagram showing the relationship between the rear wheel steering range and steering angle data, Fig. 6 is a flowchart showing the operation for determining the rear wheel steering situation, and Fig. 7 is an explanatory diagram showing the relationship between the rear wheel steering angle. It is a diagram. 1... Lock release air cylinder, 2... Rudder angle sensor, 6, 7... Lock sensor, 18... Mode switching gear box, 21... Front wheel, 22... Rear wheel, 26... Gear box, 28... Rear wheel Steering actuator, 40...control unit, 4
1...Display section.

Claims

[Scope of utility model registration request]

A front wheel steering mechanism, a rear wheel steering mechanism, a mode switching mechanism that selectively and reversibly transmits the steering direction and amount of the front wheel steering mechanism to the rear wheel steering mechanism, and a lock that locks the rear wheels in a neutral position when the front wheels are being steered. In a four-wheel steering vehicle equipped with a mechanism, a means for detecting a rear wheel steering angle, a means for detecting a neutral lock of the rear wheels, and a detected steering angle value at the time of neutral lock is updated as a neutral steering angle value. a learning means; a means for determining and displaying at least the steering direction of the rear wheels based on the updated neutral steering angle value and the detected steering angle value during four-wheel steering; and a means for determining and displaying the steering direction of at least the rear wheels based on the updated neutral steering angle value and the detected steering angle value; 1. A four-wheel steering vehicle, characterized in that the four-wheel steering vehicle is equipped with a warning means that stops the data update and issues an alarm when the data update occurs.