VEHICULAR CONTROL APPARATUS

• Main Authors: HANAI NORIHITO, SUNAMI KAZUO, YAMAGUCHI MASAAKI, KANEKO MASATO, ITO HISAYUKI, HOSOKI TAKAYUKI, SENDA KENJI
• Format: Patent
• Language: English; Japanese
• Published: 31.10.2019
• 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; 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; TRANSPORTING; VEHICLES IN GENERAL; WEAPONS

To realize both of suppressing the generation of vibration and promoting an intake pipe pressure to increase on the downstream of throttle when an engine is stopped.SOLUTION: In a case where there is an instruction to stop an engine 10, a determination is made as to whether an intake pipe pressure Pi≥a crankcase pressure Pc (step S3). In the case of being determined that the intake pipe pressure Pi<the crankcase pressure Pc, throttle valve open control is performed (step S4). The throttle valve open control is control for operating a throttle value 21 toward an open side. In the case of being determined that the intake pipe pressure Pi≥the crankcase pressure Pc, the throttle valve 21 is closed (step S5) and motor control is performed (step S6). The motor control is control for outputting torque to be exerted in a direction reverse to a rotation direction of a crank shaft by driving a motor 7.SELECTED DRAWING: Figure 4 【課題】エンジン停止の際における振動の発生の抑制と、スロットル下流側の吸気管圧の上昇の促進と、を両立させる。【解決手段】エンジン１０に対する停止指令がある場合、吸気管圧Ｐｉ≧クランクケース圧Ｐｃが成立するか否かが判定される（ステップＳ３）。吸気管圧Ｐｉ＜クランクケース圧Ｐｃであると判定された場合、スロットル弁開制御が行われる（ステップＳ４）。スロットル弁開制御は、スロットル弁２１を開き側に操作する制御である。吸気管圧Ｐｉ≧クランクケース圧Ｐｃであると判定された場合、スロットル弁２１を閉じ（ステップＳ５）、電動機制御を行う（ステップＳ６）。電動機制御は、電動機７を駆動してクランク軸の回転方向とは逆の方向に作用するトルクを出力する制御である。【選択図】図４