JPS63197778U

JPS63197778U -

Info

Publication number: JPS63197778U
Application number: JP9011387U
Authority: JP
Priority date: 1987-06-11
Filing date: 1987-06-11
Publication date: 1988-12-20

Description

[Brief explanation of the drawing]

第１図は本考案の電動パワーステアリング装置
を示すクレーム概念図、第２図は第１実施例の電
動パワーステアリング装置に適応されたフオーク
リフトトラツクの操舵力伝達系を示す斜視図、第
３図は第１実施例のアシスト制御装置を示すブロ
ツク図、第４図はコントローラでの制御処理作動
の流れを示すフローチヤート図、第５図は１界磁
モータと２界磁モータとのモータ特性を示す図、
第６図は第２実施例の電動パワーステアリング装
置が適応されたリーチフオークリフトトラツクの
操舵力伝達系を示す斜視図、第７図は第３実施例
の電動パワーステアリング装置が適応された乗用
車の操舵力伝達系を示す斜視図である。１……ステアリングホイール、２……パワーア
シスト手段、３……電動モータ、４……操舵トル
ク、５……コントローラ、６……モータ駆動回路
、７，８……コイル、９……操舵モード検出手段
。 Fig. 1 is a conceptual diagram of claims showing the electric power steering device of the present invention, Fig. 2 is a perspective view showing a steering force transmission system of a forklift truck adapted to the electric power steering device of the first embodiment, and Fig. 3 1 is a block diagram showing the assist control device of the first embodiment, FIG. 4 is a flowchart showing the flow of control processing operations in the controller, and FIG. 5 shows the motor characteristics of the 1-field motor and the 2-field motor. The figure shown,
FIG. 6 is a perspective view showing a steering force transmission system of a reach fork lift truck to which the electric power steering device of the second embodiment is applied, and FIG. 7 is a perspective view of a passenger car to which the electric power steering device of the third embodiment is applied. FIG. 3 is a perspective view showing a steering force transmission system. 1... Steering wheel, 2... Power assist means, 3... Electric motor, 4... Steering torque, 5... Controller, 6... Motor drive circuit, 7, 8... Coil, 9... Steering mode detection means.

Claims

[Scope of Claim for Utility Model Registration] A power assist means provided in the middle of a steering force transmission system from a steering wheel, an electric motor provided in the power assist means as an assist force generation means, and a power assist means for controlling the electric motor to generate steering torque, etc. In an electric power steering device equipped with a controller that controls drive according to an input signal, two coils are provided in the motor drive circuit of the electric motor, and the electric motor can be used as a single field motor or as a dual field motor. In addition, a steering mode detection means is provided as an input means to the controller, and a command from the controller to the motor drive circuit allows two modes to be used in the torque-oriented mode.
An electric power steering device characterized in that a field motor is used, and selective control is performed in which one field motor is used in a rotation speed emphasis mode.