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    • 1. 发明专利
    • Air-fuel ratio controller of internal combustion engine
    • 内燃机空燃比控制器
    • JP2009036117A
    • 2009-02-19
    • JP2007201839
    • 2007-08-02
    • Aisan Ind Co LtdToyota Motor Corpトヨタ自動車株式会社愛三工業株式会社
    • IDETO JUNJIFUJITA TOMOHIROSHIMAZAKI NORIKAZU
    • F02D41/04F01N3/20F01N3/28F02D41/14F02D45/00
    • PROBLEM TO BE SOLVED: To provide both an improvement in exhaust emission purifying capability and reduction in fuel consumption in an internal combustion engine which performs enriching control at the time of recovery from fuel cutting.
      SOLUTION: When an output of an O
      2 sensor on a catalyst downstream side indicates a lean state in recovery from fuel cutting, enriching control is started and then when oxygen inside a catalyst has been judged to be consumed during implementing the enriching control, the enriching control is terminated. However, even if the judgment has been made in the course of consuming oxygen, when the output of the O
      2 sensor at the catalyst downstream side changes to a rich side, the enriching control is terminated, thus permitting the enriching control at the time of the recovery from the fuel cutting to be timely terminated at all times. By performing such control, even if the fuel cutting for the purpose of improving fuel economy is frequently iterated, exhaust emission can be prevented from becoming more noxious. Regardless of catalyst deterioration due to repeated use over the years, consistently stable enriching control (increase in fuel volume) at the time of the recovery from the fuel cutting is realized.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供在从燃料切割回收时进行浓缩控制的内燃机中的排气净化能力的提高和燃料消耗的降低。

      解决方案:当催化剂下游侧的O 2 传感器的输出表示从燃料切割回收时的稀薄状态,开始浓缩控制,然后当催化剂内的氧被判断为 在实施丰富控制时消耗,丰富控制终止。 然而,即使在消耗氧气的过程中进行判断,当催化剂下游侧的O 2 传感器的输出变为浓侧时,浓缩控制终止,从而允许 在燃油切割恢复时的丰富控制始终及时终止。 通过进行这种控制,即使为了提高燃料经济性而进行燃料切断也经常重复,可以防止废气排放变得更加有害。 无论多年来多次使用催化剂的劣化,实现了从燃料切割中恢复时始终稳定的浓缩控制(燃料体积增加)。 版权所有(C)2009,JPO&INPIT

    • 2. 发明专利
    • Exhaust emission control device for internal combustion engine
    • 用于内燃机的排气排放控制装置
    • JP2006233775A
    • 2006-09-07
    • JP2005045854
    • 2005-02-22
    • Aisan Ind Co LtdToyota Motor Corpトヨタ自動車株式会社愛三工業株式会社
    • GOTO TSUGUMASATAKAMATSU KOJIFUJITA TOMOHIRO
    • F02D41/14B01D53/86B01D53/94F01N3/20F01N3/24F02D45/00
    • Y02T10/47
    • PROBLEM TO BE SOLVED: To compensate air-fuel ratio even if catalyst is deteriorated and purify exhaust gas furthermore. SOLUTION: This exhaust emission control device is provided with a front step catalyst converter 16 and a rear step catalyst converter 17 provided in series in an exhaust passage 3, a first oxygen sensor 23 provided on the upstream side of the front step catalyst converter 16, a second oxygen sensor 24 provided on the upstream side of the rear step catalyst converter 17 and on the downstream side of the front step catalyst converter 16, a third oxygen sensor 25 provided on the downstream side of the rear step catalyst converter 17, and an electronic control unit (ECU) 30. The ECU 30 feedback-controls air-fuel ratio to theoretical air-fuel ratio based on detected values of the first and second oxygen sensors 23, 24, determines deterioration of the front step catalyst converter 16 based on detected values of the first and second oxygen sensors 23, 24 during the feedback control, and compensates the feedback control based on a detected value of the third oxygen sensor 25 when the ECU 30 determines that its deterioration occurs. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:即使催化剂劣化并且还排除废气来补偿空燃比。 解决方案:该废气排放控制装置设置有串联设置在排气通路3中的前段催化剂转化器16和后段催化剂转化器17,设置在前段催化剂上游侧的第一氧传感器23 转换器16,设置在后级催化剂转换器17的上游侧和前级催化剂转换器16的下游侧的第二氧传感器24,设置在后级催化剂转换器17的下游侧的第三氧传感器25 以及电子控制单元(ECU)30。ECU30基于第一氧传感器23和第二氧传感器24的检测值反馈控制空燃比与理论空燃比,确定前级催化剂转化器的劣化 16,基于在反馈控制期间第一氧传感器23和第二氧传感器24的检测值,并且当ECU 30基于第三氧传感器25的检测值补偿反馈控制 确定其劣化发生。 版权所有(C)2006,JPO&NCIPI
    • 4. 发明专利
    • Valve timing control device for internal combustion engine
    • 用于内燃机的阀定时控制装置
    • JP2011007132A
    • 2011-01-13
    • JP2009152476
    • 2009-06-26
    • Toyota Motor Corpトヨタ自動車株式会社
    • MISAKU TOMOHIROINOUE YASUMICHIONISHI AKITOOHASHI SEIICHINOZAKI TOMOHIROFUJITA TOMOHIROSUGAWARA DAISUKEHIRAMATSU HIDEAKI
    • F02D13/02
    • Y02T10/18
    • PROBLEM TO BE SOLVED: To prevent stopper contact due to oscillation (fluctuation) of oil pressure and the like in a valve timing control device variable controlling one or both of valve timing of an intake valve and valve timing of an exhaust valve by the oil pressure.SOLUTION: For example, if target valve timing of the intake valve (IN temporary target value) enters a use limit region Din from a normal use region Dnor, the actual valve timing of the intake valve (IN actual target value) is limited to an upper limit value α of the use limit region Din and the actual valve timing of the exhaust valve (EX actual target value) is controlled so as to keep target overlap. The IN, EX actual valve timing is controlled not to enter the use limit regions Din, Dex and the stopper contact is prevented by controlling the IN actual target value and the EX actual target value in such a manner.
    • 要解决的问题:在控制进气门的气门正时和排气门的气门正时的一个或两个的气门正时控制装置中,通过油压来防止由于油压等的振荡(波动)引起的止动器接触 解决方案:例如,如果进气门的目标气门正时(IN临时目标值)从正常使用区域Dnor进入使用极限区域Din,则进气门的实际气门正时(IN实际目标值)被限制为 控制使用限制区域Din的上限值α和排气门的实际气门正时(EX实际目标值),以保持目标重叠。 控制IN,EX实际气门正时不能进入使用极限区域Din,Dex,并且通过以这种方式控制IN实际目标值和EX实际目标值来防止止动器接触。
    • 5. 发明专利
    • Hybrid vehicle control device
    • 混合动力车辆控制装置
    • JP2014121976A
    • 2014-07-03
    • JP2012279585
    • 2012-12-21
    • Toyota Motor Corpトヨタ自動車株式会社
    • HONDA TOMOAKISAITO KENICHIFUJITA TOMOHIROSUZUKI KENMITSUANDO DAIGOHAMAMOTO YOSHIAKI
    • B60W10/06B60K6/24B60K6/445B60W10/10B60W20/00F02D29/02
    • Y02T10/6239Y02T10/6295
    • PROBLEM TO BE SOLVED: To provide a hybrid vehicle control device capable of improving drivability by generating an engine output in accordance with required drive force at a load-required engine start.SOLUTION: A hybrid vehicle control device performs: starting an engine itself responsively to a start operation performed for enabling a hybrid vehicle to travel when the engine is hot, and inhibiting intermittent stops of the engine itself; continuing the inhibition of intermittent stops of the engine until pressure of fuel rises to required pressure necessary for a load-required start of the engine itself and stabilizes there; locking a shift selector so as not to be shifted from a parking range to another range when the engine itself is started responsively to a start operation; and releasing the lock of the shift selector when the pressure of fuel rises to the required pressure and stabilizes there.
    • 要解决的问题:提供一种能够通过在负载要求的发动机起动时根据所需的驱动力产生发动机输出而提高驾驶性的混合动力车辆控制装置。解决方案:混合动力车辆控制装置执行:响应于起动发动机本身 当发动机热时能够使混合动力车辆行驶,并且抑制发动机本身的间歇停止而进行的启动操作; 继续抑制发动机的间歇停止,直到燃料的压力上升到发动机本身负载所需的启动所需的压力,并稳定在那里; 当发动机本身响应于启动操作启动时,锁定换档选择器以便不会从停车范围移动到另一范围; 并且当燃料压力上升到所需压力并在那里稳定时释放换挡选择器的锁定。
    • 6. 发明专利
    • Control device of internal combustion engine
    • 内燃机控制装置
    • JP2011256726A
    • 2011-12-22
    • JP2010129242
    • 2010-06-04
    • Toyota Motor Corpトヨタ自動車株式会社
    • FUJITA TOMOHIRO
    • F02D41/34F02D41/04F02M37/00F02M63/00
    • F02D41/3094F02D2041/3881F02D2200/0602
    • PROBLEM TO BE SOLVED: To accurately suppress deviation of an air fuel ratio of a mixed gas from a target air fuel ratio caused by the time delay in a fuel pressure change in a high-pressure fuel passage.SOLUTION: An internal combustion engine 7 includes a high-pressure fuel injection valve 47 directly injecting a fuel into a cylinder, a low-pressure fuel injection valve 37 injecting the fuel into the intake port 72 of the cylinder, and a high-pressure fuel pump 5 adjusting the fuel pressure in a high-pressure delivery pipe 46 in accordance with an engine operation state. An electronic control device 8 adjusts the fuel pressure in the high-pressure delivery pipe 46 by the high-pressure fuel pump 5 in accordance with an engine load, and also sets the basic proportion of the fuel injection amount of the high-pressure fuel injection valve 47 in the total fuel injection amount which is the total sum of the fuel injection amount of each injection valve 47, 37, in accordance with an engine rotation speed and an engine load. When the fuel pressure during a low-load operation is equal to or higher than a predetermined pressure that is higher than a fuel pressure which is made to correspond to a case when the engine is operated at a low load, the controller corrects the proportion of the fuel injection amount of the high-pressure fuel injection valve 47 to be larger than the basic proportion.
    • 要解决的问题:精确地抑制混合气体的空燃比与由高压燃料通道中的燃料压力变化中的时间延迟引起的目标空燃比的偏差。 解决方案:内燃机7包括将燃料直接喷射到气缸中的高压燃料喷射阀47,将燃料喷射到气缸的进气口72中的低压燃料喷射阀37和高 压油泵5根据发动机运转状态调节高压输送管46内的燃料压力。 电子控制装置8通过高压燃料泵5根据发动机负荷来调节高压输送管46的燃料压力,并且还设定高压燃料喷射量的燃料喷射量的基本比例 按照发动机转速和发动机负荷,作为各喷射阀47,37的燃料喷射量的总和的总燃料喷射量的阀47。 当低负荷运转时的燃料压力等于或高于比发动机在低负载下运转的情况下相应的燃料压力高的预定压力时,控制器校正比例 高压燃料喷射阀47的燃料喷射量大于基本比例。 版权所有(C)2012,JPO&INPIT
    • 7. 发明专利
    • Fuel injection control device for internal combustion engine
    • 用于内燃机的燃油喷射控制装置
    • JP2010048166A
    • 2010-03-04
    • JP2008212932
    • 2008-08-21
    • Toyota Motor Corpトヨタ自動車株式会社
    • TAJIMA KAZUCHIKAFUJITA TOMOHIROHANAI AKIHIRO
    • F02D41/04F02D19/08F02D41/06F02D41/34F02D45/00
    • F02D41/0025F02D19/061F02D19/0628F02D19/0652F02D19/0655F02D19/084F02D41/009F02D41/062F02D2200/0611Y02T10/36
    • PROBLEM TO BE SOLVED: To inhibit deterioration of startability of an internal combustion engine accompanying poor combustion by improving combustion of fuel in a combustion chamber after crank angle discrimination under a condition where alcohol concentration in the fuel is high. SOLUTION: As a fuel injection form making quantity of fuel existing in the combustion chamber 2 a value necessary for engine start when fuel in the combustion chamber 2 is to be burned at each cylinder after crank angle discrimination in engine start under a condition where alcohol concentration in fuel is high, a fuel injection form for high alcohol concentration is newly set. The fuel injection form after crank angle discrimination is changed over to the fuel injection form for high alcohol concentration when alcohol concentration in the fuel is high, and the fuel is injected from a fuel injection valve 4 of each cylinder after crank angle discrimination in order to materialize the fuel injection form for high alcohol concentration. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:通过在燃料中的酒精浓度高的条件下,通过改善燃烧室中的燃料在燃烧室中的燃烧之后,抑制燃烧不良的内燃机的起动性的劣化。 解决方案:作为燃料喷射形式,当在发动机起动后的曲轴角度判别之后,在燃烧室2中存在燃料的量时,发动机起动时的燃料必须在燃烧室2中的燃料在每个气缸中燃烧 在燃料中的酒精浓度高的情况下,重新设定用于高酒精浓度的燃料喷射形式。 当燃料中的酒精浓度高时,曲轴角度辨别之后的燃料喷射形式被转换为用于高酒精浓度的燃料喷射形式,并且在曲轴角度辨别之后燃料从每个气缸的燃料喷射阀4喷射,以便 实现高酒精浓度的燃料喷射形式。 版权所有(C)2010,JPO&INPIT