DEVICE AND METHOD FOR CONTROLLING ELECTRIC BRAKE, AND ELECTRIC BRAKE DEVICE

• Main Authors: ITO SHOTARO, USUI TAKUYA
• Format: Patent
• Language: English; Japanese
• Published: 10.05.2023
• Subjects: ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; BLASTING; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; BRAKES; CLUTCHES; COUPLINGS FOR TRANSMITTING ROTATION; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES; THERMAL INSULATION IN GENERAL; TRANSPORTING; VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES; VEHICLES IN GENERAL; WEAPONS

To provide a device and a method for controlling an electric brake, and an electric brake device which can suppress deterioration in estimation accuracy based on a current value of an electric motor.SOLUTION: A brake mechanism 22 includes an electric motor 26, a torsion spring 33, and a ratchet mechanism 34. The ratchet mechanism 34 is configured so that a tip 33 of the torsion spring 33 gets over projections 34A, in a case in which rotational torque acting on the torsion spring 33 exceeds a predetermined value when the electric motor 26 is normally rotated. Control devices 41, 10 for braking detect that the tip 33B of the torsion spring 33 gets over the projections 34B on the basis of reduction of a current value energized to the electric motor 26 with respect to a rotational amount of the electric motor 26, when the electric motor 26 is normally rotated.SELECTED DRAWING: Figure 3 【課題】電動モータの電流値に基づく推定精度の悪化を抑制できる電動ブレーキの制御装置、制御方法および電動ブレーキ装置を提供する。【解決手段】ブレーキ機構２２は、電動モータ２６と、ねじりばね３３と、ラチェット機構３４とを備えている。ラチェット機構３４は、電動モータ２６が正回転するときにねじりばね３３に作用する回転トルクが所定値を超えた場合、ねじりばね３３の先端部３３Ｂが突起３４Ａを乗り越えるように構成されている。制動用制御装置４１，１０は、電動モータ２６が正回転するときに、電動モータ２６の回転量に対する電動モータ２６に通電される電流値の減少に基づいて、ねじりばね３３の先端部３３Ｂが突起３４Ａを乗り越えたことを検知する。【選択図】図３