FOUR WHEEL DRIVE AUTOMOBILE

• Main Authors: TANAKA SHUNZO, KAWANO ATSUHIRO, HASHIGUCHI MASAYUKI, ITO YOSHIHITO, SHINADA KENICHIRO, SAWASE KAORU, TEJIMA TAKASHI, ITO MASAYOSHI
• Format: Patent
• Language: English
• Published: 07.01.1992
• Edition: 5
• 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; COMBUSTION ENGINES; CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; CONTROLLING COMBUSTION ENGINES; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; 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

PURPOSE:To avoid the interference of control with each other by allowing several kinds of control to be performed in set priority by a driving force distribution control means and an engine output control means, corresponding to the running and driving conditions of a vehicle. CONSTITUTION:The output of an engine 2 is transmitted to a planetary gear type differential gear 12 to distribute engine torque to front wheels and rear wheels in a required condition via an automatic transmission. To the differential gear 12, a hydraulic multiplate clutch 28 is attached as a driving force distribution control means which can change the distribution of engine output torque to the front wheels and the rear wheels through locking operation. The engine 2 is provided with a human-initiated engine output adjusting device 102 such as a throttle valve and an engine output control means 101 such as a sub-throttle valve, which are controlled by a controller 48 in sequence of brake ON control, high-speed run control, main driving force control, spin control, drift control, longitudinal slip control and direct-connection 4WD control.