전동 브레이크 장치

• Main Authors: NOMURA DAICHI, USUI TAKUYA
• Format: Patent
• Language: Korean
• Published: 20.06.2022
• Subjects: ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; BLASTING; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; BRAKES; CLUTCHES; CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; COUPLINGS FOR TRANSMITTING ROTATION; ELECTRICITY; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; GENERATION; 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

전동 브레이크 장치는, 복수의 구동 회로를 갖는 전동기와, 전동기의 구동에 의해 제동 부재를 피제동 부재에 압박하는 전동 기구, 그리고 전동기의 구동을 제어하는 제어 장치를 포함한다. 제어 장치는, 복수의 구동 회로 중 일부의 구동 회로에 통전하였을 때의 전동기의 전류 변화에 기초하여, 제동 부재와 피제동 부재의 접촉을 검지한다. 즉, 제동 부재와 피제동 부재가 접촉하기 전후의 전류의 변화량은, 복수의 구동 회로의 전부에 통전하고 있는 경우보다, 일부의 구동 회로에 통전한 경우 쪽이 커진다. 이 때문에, 제동 부재와 피제동 부재가 접촉하기 전후의 전류량의 변화점의 검출이 용이해지며, 피제동 부재에 대한 제동 부재의 접촉 위치의 검출 정밀도를 높이는 것이 가능해진다. An electric brake apparatus includes an electric motor including a plurality of driving circuits, an electric mechanism configured to press a braking member against a braking target member based on driving of the electric motor, and a control device configured to control the driving of the electric motor. The control device detects contact between the braking member and the braking target member based on a change in a current of the electric motor when power is supplied to a part of the driving circuits among the plurality of driving circuits. More specifically, the change amount of the current between before and after the braking member and the braking target member contact each other is larger when power is supplied to a part of the driving circuit than when power is supplied to all of the plurality of driving circuits.