HYBRID VEHICLE

• Main Authors: OKUDA KOICHI, MATSUBARA TORU, TABATA ATSUSHI, KITAHATA TAKESHI, SHIIBA KAZUYUKI
• Format: Patent
• Language: English; Japanese
• Published: 24.10.2019
• 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; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; 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; TRANSPORTING; VEHICLES IN GENERAL; WEAPONS

To appropriately reduce a starting shock when a rotary machine outputs starting-compensation torque in the process of an engine starting.SOLUTION: In a case where marginal torque of a second rotary machine MG2 that can be used for starting-compensation torque to be output from the second rotary machine MG2 in addition to traveling-torque is small when starting an engine 14 from a motor-travel mode, the engine 14 is started so as to decrease starting-inertia torque associated with starting the engine 14 than in the case of the aforementioned marginal torque being large, and therefore in the case of marginal torque of the second rotary machine MG2 being small, a reduction in drive torque caused by the starting-inertia torque is minimized. This makes it possible to compensate for the reduction in drive toque even if the marginal torque of the second rotary machine MG2 is small. Therefore, the starting shock can be appropriately reduced when the second rotary machine MG2 is caused to output the starting-compensation torque in the process of starting the engine 14.SELECTED DRAWING: Figure 9 【課題】機関の始動過程で始動時補償トルクを回転機により出力させる際に、始動ショックを適切に低減する。【解決手段】モータ走行モードからエンジン１４を始動するときに、第２回転機ＭＧ２が走行用トルクに加えて出力する始動時補償トルクに用いることができる第２回転機ＭＧ２の余裕トルクが小さい場合には大きい場合と比べて、エンジン１４の始動に伴って発生させられる始動時イナーシャトルクを小さくするようにエンジン１４が始動されるので、第２回転機ＭＧ２の余裕トルクが小さいときは始動時イナーシャトルクによって生じさせられる駆動トルクの落ち込み分が小さくされる。これにより、第２回転機ＭＧ２の余裕トルクが小さいときでも駆動トルクの落ち込み分を補償することが可能となる。よって、エンジン１４の始動過程で始動時補償トルクを第２回転機ＭＧ２により出力させる際に、始動ショックを適切に低減することができる。【選択図】図９