TRANSMISSION AND CONTROL METHOD OF TRANSMISSION

• Main Authors: IWADOU KEISUKE, KOGURE YUYA, KONAGAYA FUMITO, MOCHIZUKI NOBUAKI, WATANABE YUJI, HATTORI KENJI
• Format: Patent
• Language: English; Japanese
• Published: 27.12.2018
• Subjects: ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES; ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; BLASTING; CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT; THERMAL INSULATION IN GENERAL; TRANSPORTING; VEHICLES IN GENERAL; WEAPONS

To prevent that a fastening element is abruptly fastened.SOLUTION: An automatic transmission 5 comprises: a branch flow passage 115 which is branched from a connecting flow passage for connecting an oil pump 4 and a fore-and-aft traveling changeover mechanism solenoid valve 105; a bypass valve 110 which is arranged in the branch flow passage 115, and valve-opened when the pressure of the branch flow passage 115 reaches prescribed pressure or higher; and an integrated controller 50 for controlling a motion of a second fastening element. In the case that a stay time Time_rng of a non-traveling range is within a predetermined time when a shift range is switched to the non-traveling range from a traveling range and re-switched to the traveling range, the integrated controller 50 sets the pressure of the branch flow passage 115 to prescribed pressure or higher.SELECTED DRAWING: Figure 1 【課題】締結要素が急締結されることを防止する。【解決手段】自動変速機５は、オイルポンプ４と前後進切替機構用ソレノイドバルブ１０５とを接続する接続流路から分岐する分岐流路１１５と、分岐流路１１５に設けられ、分岐流路１１５の圧力が所定圧力以上なると開弁するバイパス弁１１０と、第２締結要素の動作を制御する統合コントローラ５０と、備える。統合コントローラ５０は、シフトレンジが走行レンジから非走行レンジに切り替えられて再び走行レンジに切り替えられたときに、非走行レンジの滞在時間Ｔｉｍｅ_ｒｎｇが所定時間以内の場合には、分岐流路１１５の圧力を所定圧力以上とする。【選択図】図１