VEHICLE CONTROL DEVICE

• Main Author: HATA YOSHIHARU
• Format: Patent
• Language: English; Japanese
• Published: 18.06.2020
• 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; COOLING OF INTERNAL-COMBUSTION ENGINES; COOLING OF MACHINES OR ENGINES IN GENERAL; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; ENGINE PLANTS IN GENERAL; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; LIGHTING; MACHINES OR ENGINES IN GENERAL; 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; STEAM ENGINES; TRANSPORTING; VEHICLES IN GENERAL; WEAPONS

To inhibit an excessive tensile force from acting on a belt.SOLUTION: A vehicle includes an internal combustion engine serving as a drive source and a motor generator drivably connected to a crank shaft of the internal combustion engine. A fan for cooling a radiator is connected through a belt to the crank shaft of the internal combustion engine. A hydraulic clutch is attached onto a transmission path of rotational torque from the crank shaft to the fan. A tensile force calculation part of a control device applied to the vehicle calculates a tensile force of the belt based on an engine rotation number of the internal combustion engine. If the calculated tensile force of the belt exceeds a determined reference value, a torque control part of the control device controls the internal combustion engine so that engine torque becomes small and controls the motor generator so that motor torque becomes large. Further, a clutch control part of the control device controls the hydraulic clutch so that rotational torque transmitted from the crank shaft to the belt becomes small.SELECTED DRAWING: Figure 2 【課題】ベルトに過度に大きな張力が作用することを抑制する。【解決手段】車両は、駆動源としての内燃機関と、当該内燃機関のクランクシャフトと駆動連結されたモータジェネレータとを備えている。また、内燃機関のクランクシャフトには、ベルトを介してラジエータを冷却するためのファンが連結されている。クランクシャフトからファンへの回転トルクの伝達経路上には、油圧クラッチが取り付けられている。この車両に適用される制御装置の張力算出部は、内燃機関の機関回転数に基づいて、ベルトの張力を算出する。算出したベルトの張力が定められた基準値を超えている場合、制御装置のトルク制御部は、機関トルクが小さくなるように内燃機関を制御する一方、モータトルクが大きくなるようにモータジェネレータを制御する。また、制御装置のクラッチ制御部は、クランクシャフトからベルトへと伝達される回転トルクが小さくなるように油圧クラッチを制御する。【選択図】図２