ELECTRICALLY-DRIVEN CONTROL DEVICE FOR VEHICLE

• Main Author: TSUKAMOTO SHUN
• Format: Patent
• Language: English; Japanese
• Published: 01.09.2016
• 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

PROBLEM TO BE SOLVED: To provide an electrically-driven control device for a vehicle which makes a relatively great impulse load unlikely to occur in an engagement part between an engage member in a lock mechanism and an engaged part at the moment when the engage member and the engaged part are engaged, and shortens the time required from "start of electrification amount decrease control" to "engagement of both the engage member and the engaged part".SOLUTION: The device transmits a motive force that is generated by an electric motor MTR to a pressing member PSN and generates a pressure of the pressing member PSN to a friction member MSB. The device comprises a lock mechanism LOK. In LOK, the "electrification amount decrease control" is performed for decreasing the amount of electrification to the MTR in the state where an engage member TSU is maintained at an engageable position, an engaged part RCH is moved in a pressure decrease direction and TSU is engaged with RCH, thereby providing a lock state (where RCH is disabled from being moved in the pressure decrease direction). During the electrification amount decrease control, the electrification amount is first decreased at a large decrease incline and then decreased at a small decrease incline.SELECTED DRAWING: Figure 2 【課題】ロック機構における係合部材と被係合部との係合の瞬間にて両者の係合部に比較的大きな衝撃荷重が発生し難く、且つ、「通電量減少制御の開始」から「両者の係合」までに要する時間が短い、車両の電動制動装置を提供すること。【解決手段】この装置は、電気モータＭＴＲが発生する動力を押圧部材ＰＳＮに伝達して、摩擦部材ＭＳＢに対する押圧部材ＰＳＮの押圧力を発生する。この装置は、ロック機構ＬＯＫを備える。ＬＯＫでは、係合部材ＴＳＵが係合可能位置に維持された状態で、ＭＴＲに対する通電量を減少する「通電量減少制御」を行って、被係合部ＲＣＨを押圧力の減少方向へ運動させてＴＳＵをＲＣＨと係合させることによって、ロック状態（ＲＣＨの押圧力の減少方向への運動が不能となる状態）が実現される。通電量減少制御の際、通電量は、先ず、大きい減少勾配で減少され、その後、小さい減少勾配で減少される。【選択図】図２