VEHICULAR FOUR-WHEEL DRIVE DEVICE

• Main Authors: TAKAIRA KOJI, HOMAN AKINORI, AKIYAMA YOSUKE, IJICHI AKIRA
• Format: Patent
• Language: English; Japanese
• Published: 25.11.2022
• 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; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; LIGHTING; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; 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 provide a vehicular four-wheel drive device capable of simultaneously improving traveling performance such as bad road running performance and downsizing a structure as a whole.SOLUTION: A vehicular four-wheel drive device comprises: an engine 1; a motor 2; a rear wheel 7 to which driving force can be transmitted from the engine 1; a front wheel 10 to which a driving force can be transmitted from the motor 2; an input shaft 4; a rear output shaft 5 that is coupled to the input shaft 4; a differential mechanism 3 that comprises a sun gear 3s coupled with the motor 2, a ring gear 3r, and a carrier 3c, and performs a differential action with three rotary elements; a front output shaft 9 that outputs driving force transmitted from the carrier 3c to the front wheel 10; a first coupling portion 13 that couples and releases the input shaft 4 and the carrier 3c; a second coupling portion 14 that couples and release the engine 1 and the input shaft 4; a third coupling portion 15 that couples and releases the engine 1 and the sun gear 3s; and a fixed coupling portion 16 that fixes and release the ring gear 3r.SELECTED DRAWING: Figure 1 【課題】悪路走破性などの走行性能を向上させることができると同時に、全体としての構成を小型化することの可能な車両用四輪駆動装置を提供する。【解決手段】エンジン１と、モータ２と、エンジン１から駆動力を伝達可能な後輪７と、モータ２から駆動力を伝達可能な前輪１０と、入力軸４と、入力軸４に連結されたリヤ出力軸５と、モータ２が連結されたサンギヤ３ｓ、ならびにリングギヤ３ｒ、およびキャリヤ３ｃを備えるとともに、三つの回転要素によって差動作用を行う差動機構３と、キャリヤ３ｃから伝達された駆動力を前輪１０に出力するフロント出力軸９と、入力軸４とキャリヤ３ｃとを連結・解放する第１連結部１３と、エンジン１と入力軸４とを連結・解放する第２連結部１４と、エンジン１とサンギヤ３ｓとを連結・解放する第３連結部１５と、リングギヤ３ｒを固定・解放する固定連結部１６とを備えている。【選択図】図１