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    • 6. 发明申请
    • DEVICE AND METHOD FOR STOPPING AN ENGINE
    • 用于停止发动机的装置和方法
    • WO2006043679A1
    • 2006-04-27
    • PCT/JP2005/019435
    • 2005-10-17
    • TOYOTA JIDOSHA KABUSHIKI KAISHATABATA, MitsuhiroNAKAMURA, Makoto
    • TABATA, MitsuhiroNAKAMURA, Makoto
    • F02D41/04F02D41/00F02D37/02F02D9/00
    • F02D41/042F02D9/00F02D37/02F02D41/0002F02D41/0087F02D41/0097F02D41/062F02D2041/0095Y02T10/42
    • The internal combustion engine control technique of the invention computes a TDC pass rotation speed Ntdc, which represents the rotation speed of an engine when one of multiple cylinders of the engine passes over a top dead center TDC (step S110). The control technique estimates an engine stop crank angle CAs from a map that is experimentally or otherwise obtained to represent a variation in TDC pass rotation speed Ntdc against the stop position of the engine (step S120), and specifies a fuel injection cylinder that stops in a preset cycle range including part of a compression stroke at a stop of the engine (step S130). The specified fuel injection cylinder receives lean fuel injection at a specific fuel injection timing (step S170). When the specified fuel injection cylinder is later presumed not to pass over a top dead center TDC of the compression stroke, a corrected amount of fuel is injected into the specified fuel injection cylinder (step S240). When the specified fuel injection cylinder is later presumed to pass over the top dead center TDC of the compression stroke, on the other hand, the control technique ignites an air-fuel mixture of the intake air and the injected fuel for combustion in the compression stroke, synchronously with fuel injection into a next cylinder that goes into the compression stroke after the specified fuel injection cylinder (step S270).
    • 本发明的内燃机控制技术计算出TDC通过转速Ntdc,其表示当发动机的多个气缸中的一个通过上止点TDC时的发动机的转速(步骤S110)。 控制技术根据实验或其他方式获得的映射表示发动机停止曲柄角CAs,以表示相对于发动机的停止位置的TDC通过转速Ntdc的变化(步骤S120),并且指定停止在燃料喷射缸 预定循环范围,包括在发动机停止时的压缩冲程的一部分(步骤S130)。 指定的燃料喷射缸在特定燃料喷射正时接收贫燃料喷射(步骤S170)。 当指定的燃料喷射缸后来被推定为不超过压缩行程的上止点TDC时,将校正量的燃料喷射到指定的燃料喷射缸中(步骤S240)。 另一方面,当指定的燃料喷射缸被推定为经过压缩冲程的上止点TDC时,另一方面,控制技术在压缩冲程中点燃进气和喷射燃料的燃料混合物,用于燃烧 与在特定燃料喷射缸之后进入压缩冲程的下一个气缸中的燃料喷射同步(步骤S270)。
    • 7. 发明申请
    • INTERNAL COMBUSTION ENGINE SYSTEM AND INTERNAL COMBUSTION ENGINE CONTROL METHOD
    • 内燃机系统和内燃机发动机控制方法
    • WO2006062250A1
    • 2006-06-15
    • PCT/JP2005/023002
    • 2005-12-08
    • TOYOTA JIDOSHA KABUSHIKI KAISHANAKAMURA, MakotoTABATA, Mitsuhiro
    • NAKAMURA, MakotoTABATA, Mitsuhiro
    • F02D41/04F02N17/08F02N11/08
    • F02N19/00F02D41/042F02D2041/0095F02N11/0814Y02T10/48
    • When a crank angle CAa of a specific cylinder, which was expected to stop in a fuel injection stop range over an intake stroke to a compression stroke at a full stop of an engine and received fuel injection, actually exceeds the fuel injection stop range and reaches a preset reference angle CA4, engine stop-state ignition control of the invention ignites the air-fuel mixture in the specific cylinder receiving the fuel injection at a moment of reaching the preset reference angle CA4 (step S260) and simultaneously injects the fuel into a certain cylinder that is in the intake stroke at the moment of the ignition (step S270). When the crank angle CAa of the specific cylinder receiving the fuel injection does not reach the preset reference angle CA4 but exceeds a preset reference angle CA3 that is smaller than the preset reference angle CA4, the engine stop-state ignition control of the invention ignites the air-fuel mixture in the specific cylinder upon a preset wait time elapsed after the full stop of the engine (step S295). This arrangement of the invention effectively restrains direct discharge of the uncombusted fuel at a restart of the engine to prevent the poor emission, while ensuring quiet combustion to reduce the potential vibrations due to the explosive combustion.
    • 当预定在进气冲程中的燃料喷射停止范围内停止的特定气缸的曲柄角CAa到发动机全停和接收燃料喷射时的压缩行程时,实际上超过燃料喷射停止范围并到达 本发明的预设参考角度CA4,发动机停止点火控制点燃在达到预设基准角度CA4的时刻接收燃料喷射的特定气缸中的空气 - 燃料混合物(步骤S260),同时将燃料喷射到 在点火时处于进气行程的某个气缸(步骤S270)。 当接收到燃料喷射的特定气缸的曲柄角CAa未达到预设的参考角度CA4但是超过了比预设的参考角度CA4小的预设参考角度CA3时,本发明的发动机停止状态点火控制点燃了 在发动机完全停止之后经过预定的等待时间,在特定气缸中的空气 - 燃料混合物(步骤S295)。 本发明的这种布置有效地抑制了发动机重启时未燃燃料的直接排放,以防止发射不良,同时确保安静的燃烧以减少由于爆炸燃烧引起的潜在振动。
    • 8. 发明申请
    • DRIVING APPARATUS, CONTROL METHOD OF DRIVING APPARATUS, AND MOTOR VEHICLE EQUIPPED WITH DRIVING APPARATUS
    • 驾驶装置,驾驶装置的控制方法和装有驾驶装置的电动车辆
    • WO2006062257A1
    • 2006-06-15
    • PCT/JP2005/023100
    • 2005-12-09
    • TOYOTA JIDOSHA KABUSHIKI KAISHANAKAMURA, MakotoTABATA, Mitsuhiro
    • NAKAMURA, MakotoTABATA, Mitsuhiro
    • F02D41/04F02D41/02F02N11/08
    • F02N11/0814F02D41/0225F02D41/042F02D2200/502F02N19/00Y02T10/48
    • Upon the setting of a gearshift position SP to a drivable gear position, for example, a drive position for general forward drive or a braking position for applying brake on downslope, when an engine rotation speed Ne decreases to or below a preset fuel injection-start reference rotation speed Nref1, a driving apparatus of the invention allows preliminary fuel injection before a stop of an engine into a specific cylinder that stops in a preset fuel injection stop range over an intake stroke to a compression stroke on the stop of the engine (steps S140 and S150). Upon the setting of the gearshift position SP to a non-drivable gear position, for example, a parking position for parking lock or a neutral position for keeping the gear neutral, on the other hand, the driving apparatus of the invention prohibits the preliminary fuel injection into the specific cylinder that stops in the fuel injection stop range on the stop of the engine (steps S140 and S190). This arrangement ensures a quick restart of the engine and effectively avoids potential troubles caused by non-combustion of the preliminarily injected fuel under a stop of the engine over a relatively long time.
    • 在将换档位置SP设定为可驱动的档位时,例如,当发动机转速Ne降低到或低于预设的燃料喷射开始时,例如用于一般向前驱动的驱动位置或用于在下坡上施加制动的制动位置 参考转速Nref1,本发明的驱动装置允许在发动机停止到在进气冲程之后的预设燃料喷射停止范围内停止的特定气缸中的预燃料喷射到发动机停止时的压缩冲程(步骤 S140和S150)。 另一方面,在将换档位置SP设定为不可驱动的档位时,例如停车锁的停车位置或用于保持档位中立的中立位置,本发明的驱动装置禁止预备燃料 注射到发动机停止时在燃料喷射停止范围内停止的特定气缸(步骤S140和S190)。 这种布置确保了发动机的快速重新启动,并且有效地避免了在相对长的时间内在发动机停止下预先喷射的燃料的不燃烧引起的潜在故障。