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公开(公告)号：JP2009299668A
公开(公告)日：2009-12-24
申请号：JP2008158304
申请日：2008-06-17
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： NAGAI MASAKATSU , YUDA SHUJI , UCHIDA TAKAHIRO , NAKANO TOMOHIRO
CPC classification number: Y02A50/2322
Abstract: PROBLEM TO BE SOLVED: To provide a control device for an internal combustion engine capable of compatibly achieving deceleration feeling and inhibition of temperature rise of a purification means during deceleration. SOLUTION: If a vehicle 1 is decelerating and bed temperature is not less than prescribed temperature, a catalyst deterioration inhibition control determination part 123 included in ECU 110 which is a control device for an engine 10 determines to execute catalyst deterioration inhibition control. In the catalyst deterioration inhibition control, fuel cut is prohibited and air quantity according to gear position of a transmission 15 is added as addition air quantity to target suction air quantity at an air quantity addition part 124. An engine control part 125 supplies fuel and air of the target suction air quantity to the engine 10. Consequently, exhaust gas containing oxygen can be inhibited from flowing in a catalyst 100, and temperature rise of the catalyst 100 during deceleration can be inhibited. Since fuel and suction air quantity according to the gear position, output during deceleration can be set to output appropriate to reducing ratio and deceleration feeling can be secured. COPYRIGHT: (C)2010,JPO&INPIT
Abstract translation: 解决的问题：提供一种能够兼容实现减速时的减速感和抑制净化装置的升温的内燃机的控制装置。 解决方案：如果车辆1正在减速，床温不低于规定温度，作为发动机10的控制装置的ECU110中包含的催化剂劣化抑制控制判定部123决定执行催化剂劣化抑制控制。 在催化剂劣化抑制控制中，禁止燃料切断，并且添加根据变速器15的档位的空气量作为空气量添加部124的目标吸入空气量的附加空气量。发动机控制部125供给燃料和空气 从而能够抑制含有氧的废气在催化剂100中流动，能够抑制减速时的催化剂100的升温。 由于根据档位的燃油和吸入空气量，减速期间的输出可以设定为适合减速比的输出，并且可以确保减速感。 版权所有（C）2010，JPO＆INPIT
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2.发明专利
公开(公告)号：JP2009299660A
公开(公告)日：2009-12-24
申请号：JP2008158184
申请日：2008-06-17
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： UCHIDA TAKAHIRO
Abstract: PROBLEM TO BE SOLVED: To increase accuracy of determination of thermal degradation state of an exhaust purifying catalyst by calculating accurate thermal degradation degree taking progress of thermal degradation during stop of an internal combustion engine into account. SOLUTION: Thermal degradation degree K of the exhaust purifying catalyst is calculated by integrating degree of thermal degradation progress every fixed time during engine operation. Engine stop operation time (timing t11) is defined as base timing, and engine start operation time (timing t12) is defined as correction timing. Base thermal degradation progress quantity ΔKb to be generated until temperature of the exhaust purifying catalyst drops to upper limit temperature Tx at which thermal degradation does not progress is predicted and is added to thermal degradation degree K at that time if engine start operation is not executed and engine stop state continues after the base timing. Corrected thermal degradation progress quantity ΔKc to be generated until temperature of the exhaust purifying catalyst drops to upper limit temperature Tx at is predicted and is subtracted from thermal degradation degree K at that time if engine start operation is not executed and engine stop state continues after the correction timing. COPYRIGHT: (C)2010,JPO&INPIT
Abstract translation: 要解决的问题：通过计算在内燃机停止期间的热降解进展的精确热劣化度来提高排气净化催化剂的热降解状态的测定精度。 解决方案：排气净化催化剂的热降解度K通过在发动机运转期间的每个固定时间积分热降解进度来计算。 发动机停止运转时间（定时t11）被定义为基准定时，发动机起动运转时间（定时t12）被定义为校正定时。 预测在排气净化催化剂的温度下降到不发生热劣化的上限温度Tx的基础热降解进度量ΔKb，并且如果不执行发动机起动运转则加到热劣化度K， 发动机停止状态在基准时间后继续。 预测在排气净化催化剂的温度下降到上限温度Tx at之前产生的校正的热降解进行量ΔKc，并且如果不执行发动机起动操作并且在发动机停止状态继续之后继续发动机停止状态，则从该热劣化程度K减去 校正时间。 版权所有（C）2010，JPO＆INPIT
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公开(公告)号：JP2009257278A
公开(公告)日：2009-11-05
申请号：JP2008109933
申请日：2008-04-21
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： UCHIDA TAKAHIRO , YUDA SHUJI , NAGAI MASAKATSU , NAKANO TOMOHIRO
Abstract: PROBLEM TO BE SOLVED: To provide a multi-cylinder internal combustion engine capable of suppressing a blockage due to the deposition in an air supply passage for introducing air for diluting evaoplated fuel. SOLUTION: A multi-cylinder internal combustion engine 1 comprises a throttle valve 9 provided to a branch passage 5 of each cylinder 2, an evaoplated fuel supply passage 16 for introducing the evaporated fuel produced in a fuel tank 20 to a position at the downstream side from a throttle valve 9, an air supply passage 25 for supplying air extracted out of the upstream side from the throttle valve 9 to the evaporated fuel supply passage 16, a ventilation passage 31 keeping one end connected to a position on the upstream side from the throttle valve 9 and the other connected to a crankcase 30, and a blow-by gas supply passage 32 for introducing blow-by gas in the crankcase 30 to a position on the downstream side of the throttle valve 9. An air extraction port 25a in the air supply passage 25 is provided on the upstream side from a connecting position 31a of the ventilation passage 31 with respect to a suction passage 3. COPYRIGHT: (C)2010,JPO&INPIT
Abstract translation: 要解决的问题：提供一种多气缸内燃机，其能够抑制由于在用于引入稀释挥发性燃料的空气供给通道中的沉积而导致的堵塞。 解决方案：多缸内燃机1包括设置在每个气缸2的分支通道5上的节流阀9，一个用于将在燃料箱20中产生的蒸发燃料引入到燃料箱20中的位置 来自节气门9的下游侧，用于将从节流阀9的上游侧抽出的空气供给到蒸发燃料供给路径16的供气路25，保持一端连接到上游位置的通气路31 并且另一个连接到曲轴箱30，以及用于将曲轴箱30中的窜气引入到节流阀9的下游侧的位置的窜气供给通道32。 空气供给通道25中的端口25a相对于吸入通道3从通风通道31的连接位置31a的上游侧设置。（C）2010，JPO＆INPIT
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公开(公告)号：JP2009209735A
公开(公告)日：2009-09-17
申请号：JP2008052483
申请日：2008-03-03
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： NAKANO TOMOHIRO , YUDA SHUJI , NAGAI MASAKATSU , UCHIDA TAKAHIRO
CPC classification number: Y02T10/18
Abstract: PROBLEM TO BE SOLVED: To provide a control device for a variable valve means capable of appropriately setting the start retardation time of an internal combustion engine, when the phase difference of the variable valve means is to be set to the initial value.
SOLUTION: The control device for a variable valve means 26 for changing the phase difference of a crankshaft and a camshaft 22, according to flow-in and flow-out of working fluid from a pressure feeding means 63 interlocking with an internal combustion engine, is provided with a flow rate control means 60 for controlling flow rate of the working fluid flowing in and flowing out from the pressure feed means to the variable valve means, by displacing a spool valve element 66 of an inside of the body, according to control command value, and having a dead band near the retention command value for retaining the phase difference. The device retards the execution of stop command of the internal combustion engine, until the stop retardation time elapses, and executes control for setting the phase difference to the initial value by the flow rate control means; and the stop retardation time is the sum of the dead band passage times in which the spool valve element displaces from the position of the retention command value to the position out of the dead band, and phase difference change time in which the phase difference changes to predetermined value, based on the initial value after the dead band passage time.
COPYRIGHT: (C)2009,JPO&INPITAbstract translation: 要解决的问题：当可变阀装置的相位差要被设定为初始值时，提供一种能够适当地设定内燃机的启动延迟时间的可变气门装置的控制装置。 解决方案：用于改变曲轴和凸轮轴22的相位差的可变阀装置26的控制装置，根据工作流体的流入和流出，该压力供给装置63与内燃 发动机设置有流量控制装置60，用于通过使身体内部的滑阀元件66移位，来控制流入并通过压力进给装置流出到可变阀装置的工作流体的流量， 以控制指令值，并且在保持指令值附近具有用于保持相位差的死区。 该装置延迟执行内燃机的停止指令，直到停止延迟时间过去，并执行通过流量控制装置将相位差设定为初始值的控制; 停止延迟时间是滑阀元件从保持指令值的位置到死区的位置之间的死区通过时间的总和以及相位差变化到的相位差变化时间 基于死区通过时间之后的初始值的预定值。 版权所有（C）2009，JPO＆INPIT
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公开(公告)号：JP2009150513A
公开(公告)日：2009-07-09
申请号：JP2007330546
申请日：2007-12-21
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： YUDA SHUJI , NAGAI MASAKATSU , UCHIDA TAKAHIRO , NAKANO TOMOHIRO
Abstract: PROBLEM TO BE SOLVED: To improve ride comfort such as a shock and acceleration responsiveness in returning from a fuel cut state.
SOLUTION: A control device of a power transmission apparatus which includes an internal combustion engine wherein the supply of fuel is stopped when a predetermined condition is satisfied and the supply of fuel is started again when rotation speed is lowered to a predetermined return rotation speed or when a required drive amount increases beyond a predetermined value, and a lock-up clutch transmitting torque outputted by the internal combustion engine and variable in transmission torque capacity includes a means detecting the required drive amount and an increasing rate of the required drive amount when it is determined that the supply of fuel in the internal combustion engine is returned (step S3), and a torque capacity increasing means setting an increasing velocity of the transmission torque capacity of the lock-up clutch based on the result of the detection (step S5).
COPYRIGHT: (C)2009,JPO&INPITAbstract translation: 要解决的问题：提高乘坐舒适性，例如从燃料切断状态返回时的冲击和加速响应性。 解决方案：一种动力传递装置的控制装置，其包括内燃机，其中当满足预定条件时停止供油，并且当转速降低到预定的返回旋转时再次启动燃料供应 速度或当所需驱动量增加超过预定值时，并且由内燃机输出的可变传动扭矩能力的锁定离合器传递扭矩包括检测所需驱动量和所需驱动量的增加率的装置 当确定内燃机中的燃料供应返回时（步骤S3），并且转矩容量增加装置根据检测结果设定锁止离合器的传动扭矩容量的增加速度 步骤S5）。 版权所有（C）2009，JPO＆INPIT
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Patent Agency Ranking
公开(公告)号：JP2009138642A
公开(公告)日：2009-06-25
申请号：JP2007316304
申请日：2007-12-06
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： NAKANO TOMOHIRO , YUDA SHUJI , NAGAI MASAKATSU , UCHIDA TAKAHIRO
CPC classification number: Y02T10/18
Abstract: PROBLEM TO BE SOLVED: To provide a variable valve gear control device capable of reducing a response delay during operation while setting an initial phase to an appropriate phase at which noise is not generated.
SOLUTION: This device is provided with; a variable valve gear 26 varying the open and close timing of an intake valve and an exhaust valve of an internal combustion engine; a hydraulic pressure control means 60 controlling the hydraulic pressure of an advancing chamber 56 and an retarding chamber 57 by displacing a spool valve element 66; and an initial phase control command value setting means 111 capable of setting an initial phase control command value which is a control command value corresponding to an initial phase of the variable valve gear 26 and can inhibit a collision of a housing and a vane, and setting the initial phase control command value to a value subtracting a predetermined abutting control command amount from a dead zone lower limit control command value which is a control command value corresponding to a lower limit of a dead zone of the hydraulic pressure control means 60.
COPYRIGHT: (C)2009,JPO&INPITAbstract translation: 要解决的问题：提供一种可变气门齿轮控制装置，其能够在将初始相位设定为不产生噪声的适当相位时，在运行期间减小响应延迟。
解决方案：此设备附带; 改变内燃机的进气门和排气门的打开和关闭正时的可变阀齿轮26; 液压控制装置60，通过使滑阀元件66移位来控制推进室56和减速室57的液压; 以及初始相位控制指令值设定装置111，其能够设定作为与可变阀齿轮26的初始相位对应的控制指令值的初始相位控制指令值，并且能够抑制壳体与叶片的碰撞，并且设定 将初始相位控制指令值设定为从作为与液压控制单元60的死区的下限对应的控制指令值的死区下限控制指令值减去规定的邻接控制指令量的值。
版权所有（C）2009，JPO＆INPIT
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公开(公告)号：JP2009068646A
公开(公告)日：2009-04-02
申请号：JP2007239662
申请日：2007-09-14
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： NAKANO TOMOHIRO , YUDA SHUJI , NAGAI MASAKATSU , UCHIDA TAKAHIRO
Abstract: PROBLEM TO BE SOLVED: To provide a variable valve timing device capable of stopping a spool of a control valve at a holding position even in a case where oil viscosity is high or the like.
SOLUTION: This variable valve timing device is provided with: an OCV 10 controlling supply and discharge of hydraulic oil to/from a hydraulic actuator 20 by the position of a spool 12 in a sleeve 18; and a control device 40 controlling the operation of the hydraulic actuator 20 by outputting OCV drive duty based on deviation of a target displacement angle from a control displacement angle to the OCV 10. The control device 40 outputs the OCV drive duty based on the deviation of the target displacement angle from the control displacement angle to the OCV 10 when the spool 12 is moved from a working position to the holding position, and outputs OCV drive duty of polarity reverse to that of the OCV drive duty for restoring the spool 12 to the holding position.
COPYRIGHT: (C)2009,JPO&INPITAbstract translation: 要解决的问题：即使在油粘度高等的情况下，也可以提供一种能够使控制阀的阀芯在保持位置停止的可变气门正时装置。 解决方案：该可变气门正时装置设置有：OCV 10，其通过套筒18中的线轴12的位置控制向/从液压致动器20供应和排出液压油; 以及控制装置40，其通过基于目标位移角与控制位移角相对于OCV 10的偏差输出OCV驱动占空比来控制液压致动器20的操作。控制装置40基于偏差来输出OCV驱动占空比 当阀芯12从工作位置移动到保持位置时，从控制位移角到OCV 10的目标位移角度，并将OCV驱动占空比与将阀芯12恢复到 担任职位。 版权所有（C）2009，JPO＆INPIT
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公开(公告)号：JP2009013956A
公开(公告)日：2009-01-22
申请号：JP2007179711
申请日：2007-07-09
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： NAGAI MASAKATSU , YUDA SHUJI , UCHIDA TAKAHIRO , NAKANO TOMOHIRO
Abstract: PROBLEM TO BE SOLVED: To inhibit air-fuel ratio in each cylinder during introduction of evaporated fuel from deviating from target air-fuel ratio in an evaporated fuel treatment system for an internal combustion engine introducing evaporated fuel formed in a fuel tank into an intake system of the internal combustion engine.
SOLUTION: When evaporated fuel formed in the fuel tank is purged to the intake system of the internal combustion engine, difference between a target position and a crank position at which combustion mass ratio (MFB) is consistent with a reference value is defined for each cylinder. Fuel injection quantity for each cylinder is corrected based on the difference. air-fuel ratios of all cylinders become equal and converge to target air-fuel ratio by this invention.
COPYRIGHT: (C)2009,JPO&INPITAbstract translation: 要解决的问题：为了在内燃机的蒸发燃料处理系统中引入蒸发的燃料而引入蒸发的燃料，在燃料箱中形成的蒸发燃料引入到燃料箱中的空气燃料比中， 内燃机的进气系统。 解决方案：当在燃料箱中形成的蒸发燃料被清除到内燃机的进气系统时，目标位置与燃烧质量比（MFB）与参考值一致的曲柄位置之间的差异被定义 对于每个气缸。 基于差异校正每个气缸的燃料喷射量。 通过本发明，所有气缸的空燃比变得相等并且收敛到目标空燃比。 版权所有（C）2009，JPO＆INPIT
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公开(公告)号：JP2008101546A
公开(公告)日：2008-05-01
申请号：JP2006285058
申请日：2006-10-19
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： YUDA SHUJI , NAGAI MASAKATSU , UCHIDA TAKAHIRO , NAKANO TOMOHIRO
Abstract: PROBLEM TO BE SOLVED: To provide a fuel system capable of identifying an abnormal fuel pump based on a change in the operation condition of an internal combustion engine.
SOLUTION: This fuel system 2 supplies fuel to the internal combustion engine 1 by merging the fuel delivered from a plurality of fuel pumps 3, 4 and controls the operating conditions of the plurality of fuel pumps 3, 4 according to the operation condition of the internal combustion engine 1 so that an amount of fuel required for the internal combustion engine 1 is supplied. When abnormal fuel supply is detected, the fuel pump 4 (or 3) to be operated is selected from the plurality of fuel pumps 3, 4 and the operating condition thereof is changed. The abnormal fuel pump is identified based on a relation between selection of the pump to be operated and the change in the operation condition of the internal combustion engine 1 accompanied by a change in the operating condition of the pump to be operated.
COPYRIGHT: (C)2008,JPO&INPITAbstract translation: 要解决的问题：提供一种能够基于内燃机的运行状态的变化来识别异常燃料泵的燃料系统。 解决方案：该燃料系统2通过合并从多个燃料泵3,4输送的燃料向内燃机1供给燃料，并且根据运转条件控制多个燃料泵3,4的运转状况 使得内燃机1所需的燃料量被供给。 当检测到异常燃料供给时，从多个燃料泵3,4中选择要被操作的燃料泵4（或3），并且其操作条件被改变。 基于要操作的泵的选择与内燃机1的运行状态的变化之间的关系，伴随着要运行的泵的运行状态的变化，来识别异常燃料泵。 版权所有（C）2008，JPO＆INPIT
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公开(公告)号：JP2008014212A
公开(公告)日：2008-01-24
申请号：JP2006185627
申请日：2006-07-05
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： UCHIDA TAKAHIRO , YUDA SHUJI , NAGAI MASAKATSU , NAKANO TOMOHIRO
Abstract: PROBLEM TO BE SOLVED: To provide an internal combustion engine capable of assuring a proper purification performance of a catalyst device regardless of an element temperature of an air-fuel ratio sensor.
SOLUTION: The internal combustion engine 1 includes: an engine 2; the catalyst devices 42, 43 for purifying an exhaust gas arranged on an exhaust path 41 of the engine 2; and the first air-fuel ratio sensor 52 and the air-fuel ratio sensor 53 for measuring the air-fuel ratio of the exhaust gas of the engine 2. In the internal combustion engine 1, the air-fuel ratio of a mixture gas supplied to the engine 2 is controlled based on a variance E
1 between an output voltage V
o1 of the first air-fuel ratio sensor 52 and the target voltage V
t1 of a stoichiometric air-fuel ratio. The output voltage V
o1 of the first air-fuel ratio sensor 52 is compensated based on a sub-feedback control constant K, which is calculated based on a variance E
2 between an output voltage V
o2 of the second air-fuel ratio sensor 53 and the target voltage V
t2 of a stoichiometric air-fuel ratio. The sub-feedback control constant K is compensated based on an actual measurement value of an estimated value of the element temperature T of the second air-fuel ratio sensor 53.
COPYRIGHT: (C)2008,JPO&INPITAbstract translation: 要解决的问题：提供能够确保催化剂装置的适当净化性能的内燃机，而与空燃比传感器的元件温度无关。 内燃机1包括：发动机2; 用于净化布置在发动机2的排气通路41上的废气的催化剂装置42,43; 以及用于测量发动机2的排气的空燃比的第一空燃比传感器52和空燃比传感器53.在内燃机1中，供给的混合气体的空燃比 基于第一空燃比传感器52的输出电压V
o1 与目标电压V t1之间的方差E 1 来控制发动机2 为化学计量空燃比。 第一空燃比传感器52的输出电压V SB1 o1 根据子反馈控制常数K进行补偿，该副反馈控制常数K是根据第二空燃比传感器52的方差E 2 第二空燃比传感器53的输出电压V o2 和理论空燃比的目标电压V t2 。 基于第二空燃比传感器53的元件温度T的估计值的实际测量值来补偿副反馈控制常数K.权利要求：（C）2008，JPO＆INPIT
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