VEHICULAR POWER TRANSMISSION

• Main Authors: ITO YOSHINORI, HIRASHIRO TATSUYA
• Format: Patent
• Language: English; Japanese
• Published: 23.03.2015
• 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; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; 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; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; 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; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; THERMAL INSULATION IN GENERAL; TRANSPORTING; VEHICLES IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To alleviate a discomfort a vehicle occupant receives from a gear change noise of the speed change gear in a vehicular power transmission.SOLUTION: A vehicular power transmission 101 comprises a speed change gear T/M, which is interposed between the output shaft A1 f an engine E/G, and keeps either one of the input shaft A2 and the output shaft A3 connected to the output shaft of a motor generator M/Ga drive wheel D/W of a vehicle, and is settable to a shift stage satisfying a driver's speed change requirement, a clutch C/D interposed between the output shaft A1 of the engine E/G and the input shaft A2 of the speed change gear T/M, and a controller ECU that controls the engine E/G, motor generator M/G, speed change gear T/M, and clutch C/D on the basis of a running state of the vehicle. When receiving a predetermined shift request for the speed change gear T/M from the driver during a vehicle stop, the controller ECU reserves a setting of the speed change gear T/M to a shift stage corresponding to the predetermined shift stage out of a plurality of shift stages until the vehicle turns into a predetermined running state. 【課題】車両用動力伝達装置において、変速機のギヤチェンジ音によって車両乗員が受ける不快感の低減を図る。【解決手段】車両用動力伝達装置１０１は、エンジンＥ／Ｇの出力軸Ａ１と車両の駆動輪Ｄ／Ｗとの間に介装されるとともに、入力軸Ａ２及び出力軸Ａ３のいずれか一方がモータジェネレータＭ／Ｇの出力軸に接続され、運転者の変速要求に応じた変速段に設定可能な変速機Ｔ／Ｍと、エンジンＥ／Ｇの出力軸Ａ１と変速機Ｔ／Ｍの入力軸Ａ２との間に介装されたクラッチＣ／Ｄと、車両の走行状態に基づいてエンジンＥ／Ｇ、モータジェネレータＭ／Ｇ、変速機Ｔ／Ｍ及びクラッチＣ／Ｄを制御する制御部ＥＣＵと、を備え、制御部ＥＣＵは、車両停車中に運転者から変速機Ｔ／Ｍに対する所定の変速要求があった場合、変速機Ｔ／Ｍが複数の変速段のうち当該所定の変速要求に対応した変速段に設定されるのを車両が規定の走行状態になるまで保留する。【選択図】図１