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    Internal combustion engine, air-fuel ratio imbalance judgment method therefor, and vehicle
    1.
    发明专利
    Internal combustion engine, air-fuel ratio imbalance judgment method therefor, and vehicle 有权
    内燃机，空燃比惯性判断方法及车辆

    公开(公告)号：JP2011144785A

    公开(公告)日：2011-07-28

    申请号：JP2010008348

    申请日：2010-01-18

    Applicant: Toyota Motor Corp ,  トヨタ自動車株式会社

    Inventor： MARUYAMA KIYONARI ,  NISHIGAKI TAKAHIRO ,  SASAKI TOSHITAKE

    IPC: F02D45/00 ,  F02D41/22 ,  F02D41/36

    CPC classification number: F02D41/0085 ,  F02D41/1454 ,  F02D41/1498

    Abstract: PROBLEM TO BE SOLVED: To more simply judge the imbalance of air-fuel ratios among cylinders of an internal combustion engine. SOLUTION: When an operational status of an engine is in a given normal operational status, a gradient cumulated average value ΔAulsa is calculated which corresponds to the variation of an air-fuel ratio AF to the time taken from the time the air-fuel ratio AF detected by an air-fuel ratio sensor reaches an upper peak where the change direction of the air-fuel ratio reverses to the time the air-fuel ratio reaches a lower peak where the change direction of the air-fuel ratio next reverses (S100 to S160). When the gradient cumulated average value ΔAulsa thus calculated exceeds a threshold ΔAref1 preliminarily defined as an upper limit, being an absolute value within a range in which the air-fuel ratios among the cylinders of the engine can be judged to be balanced (S165 to S175), it is judged that the air-fuel ratios are imbalanced among the cylinders of the engine. COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 要解决的问题：为了更简单地判断内燃机的气缸之间的空燃比的不平衡。 解决方案：当发动机的操作状态处于给定的正常操作状态时，计算出与空燃比AF的变化相对应的空气 - 燃料比AF的变化时间的梯度累计平均值ΔAulsa， 由空燃比传感器检测到的燃料比AF达到上述空气燃料比的变化方向与空燃比达到下一个空气燃料比的变化方向相反的低峰值的时间相反的上限值 （S100〜S160）。 当这样计算的梯度累积平均值ΔAulsa超过预先定义为上限的阈值ΔAref1时，作为能够判断发动机的气缸中的空燃比被平衡的范围内的绝对值（S165〜S175 ），则判断出发动机的气缸之间的空燃比不平衡。 版权所有（C）2011，JPO＆INPIT

    Catalyst temperature estimating device and catalyst temperature estimating method
    2.
    发明专利
    Catalyst temperature estimating device and catalyst temperature estimating method 审中-公开
    催化剂温度估计装置和催化剂温度估算方法

    公开(公告)号：JP2009293409A

    公开(公告)日：2009-12-17

    申请号：JP2008145246

    申请日：2008-06-03

    Applicant: Toyota Motor Corp ,  トヨタ自動車株式会社

    Inventor： NISHIGAKI TAKAHIRO ,  SEGUCHI KENTO

    IPC: F01N3/20 ,  B01D53/94 ,  F01N3/24 ,  F02D45/00

    Abstract: PROBLEM TO BE SOLVED: To further accurately estimate the temperature of a purifying catalyst of an internal combustion engine equipped with an exhaust gas supply means capable of supplying an intake system with exhaust gas according to the opening of an exhaust gas supply valve. SOLUTION: A coefficient k is set based on a preceding Tcat and a future temperature T* of the catalyst set based on an intake air quantity Ga to an engine and the target step number Ns* of a stepping motor for opening an EGR valve (S230). A temperature variation ΔTegr per unit time after the EGR valve is opened is set based on the actual step number Ns obtained by applying first-order lag processing to the target step number Ns* (S250). A present temperature Tcat is estimated by adding the temperature variation ΔTegr to a temperature variation ΔT per unit time based on the state of the engine and a three-way catalyst, multiplying the added value by the coefficient k, and adding the multiplied value to the preceding Tcat (S260). The temperature of the purifying catalyst can thereby be estimated to gradually approach the future temperature T* with a first-order lag processing curve. COPYRIGHT: (C)2010,JPO&INPIT

    Abstract translation: 要解决的问题：为了进一步准确地估计配备有能够根据排气供给阀的打开向进气系统供给废气的排气供给装置的内燃机的净化催化剂的温度。 解决方案：基于先前的Tcat和基于发动机的进气量Ga的催化剂组的未来温度T *和用于打开EGR的步进电机的目标步进数Ns *来设定系数k 阀（S230）。 基于通过对目标步骤数Ns *应用一阶滞后处理而获得的实际步数Ns来设定EGR阀打开后的每单位时间的温度变化ΔTegr（S250）。 通过根据发动机和三元催化剂的状态将温度变化ΔTegr与每单位时间的温度变化ΔT相加来估算当前温度Tcat，并将相加值乘以系数k，并将相乘值加到 前面的Tcat（S260）。 因此，可以估计净化催化剂的温度以一阶滞后处理曲线逐渐接近未来温度T *。 版权所有（C）2010，JPO＆INPIT

    Output state detector of internal combustion engine
    4.
    发明专利
    Output state detector of internal combustion engine 有权
    内燃机输出状态检测器

    公开(公告)号：JP2005343458A

    公开(公告)日：2005-12-15

    申请号：JP2005175390

    申请日：2005-06-15

    Applicant: Toyota Motor Corp ,  トヨタ自動車株式会社

    Inventor： TAKAOKA TOSHIBUMI ,  HIROSE KATSUHIKO ,  KANAI HIROSHI ,  INOUE TOSHIO ,  KUSADA MASAKI ,  NISHIGAKI TAKAHIRO ,  KOJIMA MASAKIYO ,  YAMAGUCHI KATSUHIKO

    IPC: B60W20/00 ,  B60K6/445 ,  B60L11/14 ,  B60W10/06 ,  B60W10/08 ,  F02D29/02 ,  F02D45/00 ,  B60K6/04

    CPC classification number: B60K6/365 ,  B60K1/02 ,  B60K6/445 ,  B60W2550/12 ,  Y02T10/6239

    Abstract: PROBLEM TO BE SOLVED: To provide an output state detector, detecting the output state of an internal combustion engine in a vehicle having an internal combustion engine and an electric motor. SOLUTION: This output state detector of an internal combustion engine detects reaction torque of a generator 3, and detects the output state of the internal combustion engine 1 from the reaction torque. The detector includes: the internal combustion engine 1; the generator driven by the internal combustion engine to generate power; torque detection means 9, 12, 23 for detecting the reaction torque of the generator 3; and output state detection means for detecting the output state of the internal combustion engine 1. The output state detection means 10, 11 detect the output state of the internal combustion engine 1 on the basis of reaction torque of the generator 3 detected by the torque detection means 9, 12, 23. COPYRIGHT: (C)2006,JPO&NCIPI

    Abstract translation: 要解决的问题：提供一种输出状态检测器，检测具有内燃机和电动机的车辆中的内燃机的输出状态。 解决方案：内燃机的输出状态检测器检测发电机3的反作用转矩，并根据反作用力矩检测内燃机1的输出状态。 检测器包括：内燃机1; 发电机由内燃机驱动发电; 用于检测发电机3的反作用转矩的转矩检测装置9,12,23; 以及用于检测内燃机1的输出状态的输出状态检测装置。输出状态检测装置10,11根据由转矩检测检测出的发电机3的反作用转矩来检测内燃机1的输出状态 意味着9,12,23。版权所有（C）2006年，JPO＆NCIPI

    Engine electronic control device and vehicle having the same mounted thereon
    5.
    发明专利
    Engine electronic control device and vehicle having the same mounted thereon 审中-公开
    发动机电子控制装置及其安装的车辆

    公开(公告)号：JP2005337170A

    公开(公告)日：2005-12-08

    申请号：JP2004159405

    申请日：2004-05-28

    Applicant: Toyota Motor Corp ,  トヨタ自動車株式会社

    Inventor： NISHIGAKI TAKAHIRO ,  ICHIMOTO KAZUHIRO

    IPC: B60W20/00 ,  B60K6/445 ,  B60K6/448 ,  B60K6/52 ,  B60W10/06 ,  F02D17/00 ,  F02D29/02 ,  F02D31/00 ,  F02D41/08 ,  F02D41/16 ,  F02D41/24 ,  F02D45/00 ,  F02N11/08 ,  B60K6/04

    CPC classification number: F02D31/003 ,  B60K6/445 ,  B60W10/06 ,  B60W2710/0644 ,  B60W2710/065 ,  F02D41/083 ,  F02D41/2438 ,  F02D41/2451 ,  F02N11/0818 ,  Y02T10/16 ,  Y02T10/6239

    Abstract: PROBLEM TO BE SOLVED: To sufficiently secure opportunities for learning operation quantity in an engine electronic control device having opportunities to increase a target speed of idling speed.
    SOLUTION: An engine ECU 50 learns a base duty ratio command value of an actuator 22a driving a throttle valve 22 which is an engine operation quantity as one of conditions where the idling target speed enters a predetermined rotation speed zone during idling operation. If learning is incomplete, idling target speed increase request is rejected and change of the idling target speed is prohibited even if an air conditioner ECU 90 issues the idling target speed increase request. Since change of the idling target speed is prohibited when learning of engine operation quantity is incomplete, a situation that the idling target speed is changed and gets out of a predetermined rotation speed zone and a learning start condition is not established can be avoided. Consequently, opportunities to learn engine operation quantity is sufficiently secured.
    COPYRIGHT: (C)2006,JPO&NCIPI

    Abstract translation: 要解决的问题：为了充分确保具有增加怠速速度的目标速度的机会的发动机电子控制装置中的学习操作量的机会。 解决方案：发动机ECU50学习将作为发动机运转量的节气门22的驱动器22a的基本占空比指令值作为怠速运转中怠速目标速度进入规定转速区域的条件之一。 如果学习不完整，则空转目标速度增加请求被拒绝，并且即使空调ECU90发出怠速目标速度增加请求，也禁止怠速目标速度的改变。 由于在学习发动机运转量不完全的情况下，由于空转目标速度的变更被禁止，所以能够避免空转目标速度变化而脱离规定的转速区域和学习开始条件不成立的情况。 因此，充分确保学习发动机运转量的机会。 版权所有（C）2006，JPO＆NCIPI

    Control device for internal combustion engine and automobile equipped therewith
    6.
    发明专利
    Control device for internal combustion engine and automobile equipped therewith 审中-公开
    内燃机控制装置及其配备的汽车

    公开(公告)号：JP2005273530A

    公开(公告)日：2005-10-06

    申请号：JP2004087160

    申请日：2004-03-24

    Applicant: Toyota Motor Corp ,  トヨタ自動車株式会社

    Inventor： ICHIMOTO KAZUHIRO ,  HARADA OSAMU ,  KOBAYASHI YUKIO ,  YAMAGUCHI KATSUHIKO ,  ANDO DAIGO ,  NISHIGAKI TAKAHIRO ,  ANDO IKUO ,  HASEGAWA KEIKO ,  TOMATSURI MAMORU

    IPC: F02N15/00 ,  F01N3/24 ,  F02D17/00 ,  F02D29/02 ,  F02D41/06 ,  F02D45/00 ,  F02N11/08

    CPC classification number: F02D41/065 ,  F02D2200/0804 ,  F02N11/0814 ,  Y02T10/48

    Abstract: PROBLEM TO BE SOLVED: To properly estimate the temperature of an internal combustion engine and a member related to the internal combustion engine regardless of the automatic stopping and automatic starting of the internal combustion engine.
    SOLUTION: After lapse of a predetermined time from the initial starting of an engine 22 after the starting of the system of a hybrid automobile 20 (S100), the estimated temperatures Test 1-Test 4 of a catalyst, the tip end of a fuel injection valve, the surface of a combustion chamber, and the top surface of a piston are calculated (S120-S140) based on an air filling rate kl, an engine speed Ne, cooling water temperature Tw, and an air flow rate Ga without resetting to an initial value even when the engine 22 is automatically stopped. By using these estimated temperatures, the engine can be properly operated. As a result, emission is improved, fuel economy is improved, and durability of the engine and an exhaust emission control device can be improved.
    COPYRIGHT: (C)2006,JPO&NCIPI

    Abstract translation: 要解决的问题：无论内燃机的自动停止和自动起动如何，都能适当地估计内燃机和与内燃机相关的构件的温度。 解决方案：在混合动力汽车20的系统启动之后从发动机22的初始启动经过预定时间（S100）之后，催化剂的估计温度Test 1-Test 4， 基于空气填充率k1，发动机转速Ne，冷却水温度Tw和空气流量Ga（S120-S140）计算燃料喷射阀，燃烧室的表面和活塞的顶面 即使发动机22自动停止，也不会重新设定为初始值。 通过使用这些估计的温度，发动机可以正常运行。 结果，改善了排放，提高了燃料经济性，并且可以提高发动机和废气排放控制装置的耐久性。 版权所有（C）2006，JPO＆NCIPI

    Driving device of vehicle
    7.
    发明专利
    Driving device of vehicle 审中-公开
    车辆驾驶装置

    公开(公告)号：JP2005247293A

    公开(公告)日：2005-09-15

    申请号：JP2004351301

    申请日：2004-12-03

    Applicant: Toyota Motor Corp ,  トヨタ自動車株式会社

    Inventor： KOBAYASHI YUKIO ,  HARADA OSAMU ,  YAMAGUCHI KATSUHIKO ,  ICHIMOTO KAZUHIRO ,  NISHIGAKI TAKAHIRO ,  TOMATSURI MAMORU

    IPC: B60R25/06 ,  B60K6/445 ,  B60R25/01 ,  B60R25/04 ,  B60R25/042 ,  B60R25/045 ,  B60R25/10 ,  B60R25/104 ,  B60R25/24 ,  B60R25/30 ,  B60W10/06 ,  B60W10/08 ,  B60W20/00 ,  B60K6/04

    CPC classification number: Y02T10/6286

    Abstract: PROBLEM TO BE SOLVED: To prevent a vehicle from traveling regardless of owner's intention. SOLUTION: An owner of the vehicle or a vehicle use-right holder authorized by the owner on the use of the vehicle has a travel un-authorizing signal receiving means for receiving the un-authorization of the travel of the vehicle and a driving control state changing means for changing the driving condition of the vehicle based on it. By performing driving force restriction and shift restriction of the vehicle, for example, the travel of the vehicle against the owner's intention is restricted, and the vehicle is prevented from being stolen. COPYRIGHT: (C)2005,JPO&NCIPI

    Abstract translation: 要解决的问题：为了防止车辆行驶，无论车主的意图如何。

    解决方案：车主或车主使用权利持有人在车辆使用时授权的所有人具有旅行未授权信号接收装置，用于接收车辆行驶的未授权，并且 驱动控制状态改变装置，用于改变车辆的行驶状况。 通过执行车辆的驱动力限制和换档限制，例如，限制了车辆对车主意图的行驶，并且防止车辆被盗。 版权所有（C）2005，JPO＆NCIPI

    Device for controlling cooling fan of electricity-accumulating mechanism
    8.
    发明专利
    Device for controlling cooling fan of electricity-accumulating mechanism 有权
    用于控制电力累积机构的冷却风扇的装置

    公开(公告)号：JP2005204481A

    公开(公告)日：2005-07-28

    申请号：JP2004010845

    申请日：2004-01-19

    Applicant: Toyota Motor Corp ,  トヨタ自動車株式会社

    Inventor： HARADA OSAMU ,  KOBAYASHI YUKIO ,  YAMAGUCHI KATSUHIKO ,  ICHIMOTO KAZUHIRO ,  NISHIGAKI TAKAHIRO ,  TOMATSURI MAMORU

    IPC: B60K11/06 ,  B60L11/18

    CPC classification number: Y02T10/7005 ,  Y02T10/7022

    Abstract: PROBLEM TO BE SOLVED: To cool an electricity-accumulating mechanism mounted on a vehicle without causing a time lag with temperature rise.
    SOLUTION: A battery ECU executes a program that includes a step (S100) in which the battery temperature TB is detected; a step (S400) in which, if the battery temperature TB becomes higher than a threshold value TH(Lo) of a battery cooling fan actuation starting temperature (YES at S300) when a sports mode is selected (YES at S200), a battery cooling fan is actuated; and a step (S400) in which, if the battery temperature TB becomes higher than a threshold value TH(Hi) of the battery cooling fan actuation starting temperature (YES at S500) when a sports mode is selected (NO at S200), the battery cooling fan is actuated.
    COPYRIGHT: (C)2005,JPO&NCIPI

    Abstract translation: 要解决的问题：冷却安装在车辆上的蓄电机构，而不会导致温度上升的时滞。 解决方案：电池ECU执行包括其中检测到电池温度TB的步骤（S100）的程序; 如果在选择运动模式时（S200为“是”），如果电池温度TB变得高于电池冷却风扇驱动开始温度的阈值TH（Lo）（步骤S300为是），则进行步骤（S400） 冷却风扇启动; 以及步骤（S400），其中如果选择运动模式（S200为否），如果电池温度TB变得高于电池冷却风扇致动启动温度的阈值TH（Hi）（步骤S500为是） 电池冷却风扇启动。 版权所有（C）2005，JPO＆NCIPI

    Start controller for internal combustion engine
    10.
    发明专利
    Start controller for internal combustion engine 审中-公开
    内燃机起动控制器

    公开(公告)号：JP2004316561A

    公开(公告)日：2004-11-11

    申请号：JP2003112083

    申请日：2003-04-16

    Applicant: Toyota Motor Corp ,  トヨタ自動車株式会社

    Inventor： NAKAE KOICHI ,  YAMAGUCHI KATSUHIKO ,  HARADA OSAMU ,  KOBAYASHI YUKIO ,  KAMIOKA KIYOSHIRO ,  NISHIGAKI TAKAHIRO ,  TOMATSURI MAMORU

    IPC: F02P5/15 ,  F02D13/02 ,  F02D17/00 ,  F02D29/02 ,  F02D41/06

    CPC classification number: Y02T10/18 ,  Y02T10/46

    Abstract: PROBLEM TO BE SOLVED: To provide a start controller for an internal combustion engine capable of efficiently reducing rotary reaction force of an engine output shaft at the start of the engine. SOLUTION: An electronic control unit 20 retards the closing timing of an inlet valve through a variable valve timing mechanism 11 at restarting and reduces an actual compression ratio to reduce a load on a generator motor 17 unavoidable for rotating a crankshaft 12 at restarting. At the same time the electronic control unit 20 estimates the rotary reaction force during restarting, and when the estimated rotary reaction force is small, the closing timing of the inlet valve is prohibited from being retarded and a reducing amount of the actual compression ratio during restarting is set smaller comparing to the case of the large rotary reaction force. COPYRIGHT: (C)2005,JPO&NCIPI

    Abstract translation: 要解决的问题：提供一种能够有效地降低发动机起动时的发动机输出轴的旋转反作用力的内燃机的启动控制器。 解决方案：电子控制单元20在重启时通过可变气门正时机构11阻止入口阀的关闭时机，并且减小实际压缩比，以减小在重启时不可避免地使曲轴12旋转的发电机电动机17上的负载 。 同时，电子控制单元20估计重新开始时的旋转反作用力，并且当估算的旋转反作用力小时，禁止入口阀的关闭正时被延迟，并且重新启动期间的实际压缩比的减小量 与大旋转反作用力的情况相比设定得较小。 版权所有（C）2005，JPO＆NCIPI

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