公开(公告)号：JP2010133419A

公开(公告)日：2010-06-17

申请号：JP2010011537

申请日：2010-01-22

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

Inventor： AKIMOTO HIKOKAZU ,  NISHIGAKI TAKAHIRO

IPC: F02D45/00 ,  B60K6/445 ,  B60W10/06 ,  B60W20/00

CPC classification number: Y02T10/6239

Abstract: PROBLEM TO BE SOLVED: To more appropriately and more accurately determine misfire of an internal combustion engine. SOLUTION: Rotational fluctuation Nxd which is given as a variation in rotation speed N of a crankshaft at each crank angle of 120° CA corresponding to ignition timing in each cylinder of a six-cylinder engine, a rotational fluctuation difference Nxdflx which is given as difference to a rotational fluctuation Nxd at a crank angle of 360° CA before the rotational fluctuation Nxd, and a total rotational fluctuation Nxdint which is given as a sum of the rotational fluctuation Nxd and the previous rotational fluctuation Nxd at the crank angle of 360° CA before the rotational fluctuation Nxd are calculated (S100-S140). A single misfire determination process which is a single misfire determination logic determining a single misfire pattern by using the calculated rotational fluctuation Nxd, the rotational fluctuation difference Nxdflx, and the total rotational fluctuation Nxdint, a consecutive misfire determination process which is a consecutive misfire determination logic determining a consecutive misfire pattern, and an intermittent misfire determination process which is an intermittent misfire determination logic determining an intermittent misfire pattern are executed (S150-S170) to determine the misfire of the engine. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：为了更合适和更准确地确定内燃机的失火。 ＆lt; P＆gt;解决方案：作为对应于六缸发动机的每个气缸中的点火正时的每个曲柄角为120°CA的曲轴的转速N的变化给出的旋转波动Nxd，旋转波动差Nxdflx， 给出与在旋转波动Nxd之前的360°CA的曲柄角度处的旋转波动Nxd的差，以及作为旋转波动Nxd和在曲柄角度的前一个旋转波动Nxd之和的给定的总旋转波动Nxdint 计算旋转波动Nxd之前的360°CA（S100-S140）。 单个失火判定处理，其是通过使用计算出的旋转波动Nxd，旋转波动差Nxdflx和总旋转波动Nxdint来确定单个失火模式的单个失火判定逻辑，作为连续失火判定逻辑的连续失火判定处理 确定连续失火模式，并且执行作为确定间歇性失火模式的间歇性失火判定逻辑的间歇性失火判定处理（S150-S170），以确定发动机的失火。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2010084774A

公开(公告)日：2010-04-15

申请号：JP2010011536

申请日：2010-01-22

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

Inventor： AKIMOTO HIKOKAZU ,  NISHIGAKI TAKAHIRO

IPC: F02D45/00

CPC classification number: Y02T10/6239

Abstract: PROBLEM TO BE SOLVED: To appropriately and accurately determine a misfire of an internal combustion engine. SOLUTION: A rotational fluctuation Nxd is given as a variation in rotation speed N of a crankshaft at every 120 degrees crank angle CA, corresponding to an ignition timing in each cylinder of a six-cylinder engine. A difference between the rotation fluctuation Nxd and a previous rotational fluctuation Nxd at a crank angle of 360 degrees before the specific crank angle is calculated as a rotational fluctuation difference Nxdflux, and the specific rotational fluctuation Nxd at the specific crank angle and the previous rotational fluctuation Nxd at the crank angle of 360 degrees before the specific crank angle are summed up to give a total rotational fluctuation Nxdint (S100-S140). There are performed a single misfire determination process which is a single misfire determination logic determining a single misfire pattern by using the calculated rotational fluctuation Nxd, the rotational fluctuation difference Nxdflx and the total rotational fluctuation Nxdint, a consecutive misfire determination process which is a consecutive misfire determination logic determining a consecutive misfire pattern, and an intermittent misfire determination process which is an intermittent misfire determination logic determining an intermittent misfire pattern (S150-S170), thereby determining the engine misfire. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：适当且准确地确定内燃机的失火。 解决方案：对应于六缸发动机的每个气缸中的点火正时，旋转波动Nxd作为每120度曲柄角CA处的曲轴的转速N的变化量给出。 旋转波动Nxd与特定曲柄角之前的360度的曲柄角处的前一旋转波动Nxd之间的差被计算为旋转波动差Nxdflux，特定曲柄角的特定旋转波动Nxd和先前的旋转波动 将特定曲柄角之前的360度的曲柄角处的Nxd相加，得到总旋转波动Nxdint（S100-S140）。 执行单次失火判定处理，该单次失火判定逻辑是通过使用计算出的旋转波动Nxd，旋转波动差Nxdflx和总旋转波动Nxdint来确定单次失火模式的连续失火判定处理，连续失火判定处理是连续失火 确定连续失火模式的确定逻辑，以及确定间歇性失火模式的间歇性失火确定逻辑的间歇性失火确定处理（S150-S170），从而确定发动机失火。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2010084773A

公开(公告)日：2010-04-15

申请号：JP2010011535

申请日：2010-01-22

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

Inventor： AKIMOTO HIKOKAZU ,  NISHIGAKI TAKAHIRO

IPC: F02D45/00

CPC classification number: Y02T10/6239

Abstract: PROBLEM TO BE SOLVED: To appropriately and accurately determine a misfire in an internal combustion engine. SOLUTION: A rotational fluctuation Nxd is given as a variation in rotation speed N of a crankshaft at every 120° crank angle CA, corresponding to an ignition timing in each cylinder of a six-cylinder engine. A difference between the rotation fluctuation Nxd and a previous rotational fluctuation Nxd at a crank angle of 360° before the specific crank angle is calculated as a rotational fluctuation difference Nxdflux, and the specific rotational fluctuation Nxd at the specific crank angle and the previous rotational fluctuation Nxd at the crank angle of 360° before the specific crank angle are summed up to give a total rotational fluctuation Nxdint (S100-S140). There are performed a single misfire determination process which is a single misfire determination logic determining a single misfire pattern by using the calculated rotational fluctuation Nxd, the rotational fluctuation difference Nxdflx and the total rotational fluctuation Nxdint, a consecutive misfire determination process which is a consecutive misfire determination logic determining a consecutive misfire pattern, and an intermittent misfire determination process which is an intermittent misfire determination logic determining an intermittent misfire pattern (S150-S170), thereby determining the engine misfire. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：适当和准确地确定内燃机中的失火。 解决方案：对应于六缸发动机的每个气缸中的点火正时，旋转波动Nxd作为每120°曲柄角CA处的曲轴的转速N的变化量给出。 旋转波动Nxd与特定曲柄角之前的曲柄角360°处的先前旋转波动Nxd之间的差被计算为旋转波动差Nxdflux，并且在特定曲柄角处的比旋转波动Nxd和先前旋转波动 将特定曲柄角之前的曲柄角为360°的Nxd相加，得到总旋转波动Nxdint（S100-S140）。 执行单次失火判定处理，该单次失火判定逻辑是通过使用计算出的旋转波动Nxd，旋转波动差Nxdflx和总旋转波动Nxdint来确定单次失火模式的连续失火判定处理，连续失火判定处理是连续失火 确定连续失火模式的确定逻辑，以及确定间歇性失火模式的间歇性失火确定逻辑的间歇性失火确定处理（S150-S170），从而确定发动机失火。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2008128205A

公开(公告)日：2008-06-05

申请号：JP2006317536

申请日：2006-11-24

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

Inventor： AKIMOTO HIKOKAZU

IPC: F02D13/02 ,  F02D41/04

CPC classification number: F02D41/0002 ,  F01L1/3442 ,  F01L2001/0537 ,  F01L2001/34426 ,  F01L2001/3443 ,  F02D13/0219 ,  F02D13/0238 ,  F02D31/002 ,  F02D41/221 ,  F02D2041/001 ,  F02D2200/023 ,  Y02T10/18 ,  Y02T10/42

Abstract: PROBLEM TO BE SOLVED: To accurately control the opening/closing timing of an intake valve or an exhaust valve, by preventing shortage of hydraulic pressure supplied to a VVT mechanism.
SOLUTION: An ECU executes a program including: a step (S120) estimating an oil temperature based on a water temperature detected by a water temperature sensor; a step (S160) setting NE(1) as a lower limit value of an engine speed NE when the oil temperature is a threshold value THO(0) or more (YES in S130); a step (S170) setting NE(2)(NE(2)

Abstract translation: 要解决的问题：通过防止供给到VVT机构的液压的不足，精确地控制进气门或排气门的打开/关闭正时。 解决方案：ECU执行程序，包括：步骤（S120）基于由水温传感器检测的水温来估计油温; 步骤（S160）将油温为阈值THO（0）以上时，将NE（1）设定为发动机转速NE的下限值（S130中为是）。 设定NE（2）（NE（2）

公开(公告)号：JP2010163070A

公开(公告)日：2010-07-29

申请号：JP2009007356

申请日：2009-01-16

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

Inventor： AKIMOTO HIKOKAZU

IPC: B60W10/06 ,  B60K6/24 ,  B60K6/445 ,  B60L11/14 ,  B60W10/08 ,  B60W20/00 ,  F02D13/02 ,  F02D29/02

CPC classification number: Y02T10/18 ,  Y02T10/6239 ,  Y02T10/6286 ,  Y02T10/6295 ,  Y02T10/7077

Abstract: PROBLEM TO BE SOLVED: To more accurately set the timing of an intake valve locked to the latest timing by a lock mechanism, to a target timing when an engine is started automatically.
SOLUTION: When an engine is started automatically, cranking of the engine is started, and simultaneously, a prescribed timing VVT1 is set so as to be relatively quickened (angle-advanced) than the timing of the latest angle as a commanded opening/closing timing VVT* (S100); and after it is confirmed that the opening/closing timing VVT has reached a neighborhood of the commanded opening/closing timing VVT*, the original target timing is set to the commanded opening/closing timing VVT* (S100 to S130). As a result, it is possible to more accurately release lock by the lock pin body of a variable valve timing mechanism, and to set the opening/closing timing of an intake valve to the original target timing.
COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：为了更精确地将通过锁定机构锁定到最新定时的进气门的定时设定到发动机自动启动的目标定时。 解决方案：当发动机自动启动时，发动机的起动开始，并且同时将规定的定时VVT1设定为比作为指令开度的最新角度的定时相对加快（角度提前） /关闭定时VVT *（S100）; 并且在确认开/关定时VVT达到指令开/闭定时VVT *的附近之后，将原始目标定时设定为指令开/闭定时VVT *（S100〜S130）。 结果，可以更准确地释放通过可变气门正时机构的锁定销体的锁定，并且将进气门的打开/关闭正时设定为原始目标定时。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2010111212A

公开(公告)日：2010-05-20

申请号：JP2008284543

申请日：2008-11-05

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

Inventor： AKIMOTO HIKOKAZU

IPC: B60W10/06 ,  B60K6/445 ,  B60K6/52 ,  B60L11/14 ,  B60W10/08 ,  B60W20/00 ,  F02D17/00 ,  F02D21/08 ,  F02D29/02 ,  F02D41/04

CPC classification number: Y02T10/6239 ,  Y02T10/6265 ,  Y02T10/6286 ,  Y02T10/7077

Abstract: PROBLEM TO BE SOLVED: To appropriately stop operation of an engine according to supply of exhaust gas by an EGR (Exhaust Gas Recirculation) system to an intake system when a request is made to stop the operation of the engine for intermittent operation. SOLUTION: When the request to stop the operation of the engine is made for intermittent operation, annealing coefficient τ is set larger as the EGR valve opening EV is larger (S100). The required power Pe* of the engine is set to gradually decrease using the set annealing coefficient τ (S140). When the required power Pe* is a fuel injection stop power Pstop or larger, the engine and two motors are controlled so that the required power Pe* is output from the engine (S150-S170 and S200-S230). When the required power Pe* becomes less than the fuel injection stop power Pstop, the fuel injection to the engine is stopped, and the engine and two motors are controlled so that the operation of the engine is stopped (S180-S230). COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：当要求停止发动机的间歇操作的操作的请求时，通过EGR（排气再循环）系统向排气系统供给废气，适当地停止发动机的运转。 解决方案：当停止发动机运转的请求进行间歇运行时，随着EGR阀开度EV的增大，退火系数τ越大（S100）。 使用设定的退火系数τ将发动机的所需功率Pe *设定为逐渐减小（S140）。 当所需功率Pe *是燃料喷射停止功率Pstop或更大时，控制发动机和两个电动机，使得从发动机输出所需功率Pe *（S150-S170和S200-S230）。 当所需功率Pe *变得小于燃料喷射停止功率Pstop时，停止对发动机的燃料喷射，并且控制发动机和两个电动机使发动机的运转停止（S180-S230）。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2008095617A

公开(公告)日：2008-04-24

申请号：JP2006279516

申请日：2006-10-13

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

Inventor： AKIMOTO HIKOKAZU

IPC: F02D45/00 ,  F02D29/02 ,  F02D29/06

Abstract: PROBLEM TO BE SOLVED: To provide a misfire determination device and a misfire determination method for an internal combustion engine capable of accurately determining a misfire in an internal combustion engine of a vehicle in which a motor is mounted on an output shaft of the internal combustion engine via a torsion element and a planetary gear mechanism and vibration suppression control is performed by the motor. SOLUTION: Threshold values A1, A2 for temporary determination are set by proportional terms P1, P2 in a relational expression of feedback control in vibration suppression control by two motors and the engine speed, and a temporary determination of the misfire is performed based on these threshold values A1, A2 for temporary determination (S120, S130). When the misfire is temporarily determined, threshold values J01, J02, J21, J22, J41, and J42 for main determination are set using the proportional terms P1, P2, and a main determination of misfire is performed using these threshold values (S150, S160). COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：为了提供一种能够精确地确定电动机安装在输出轴上的车辆的内燃机中的失火的内燃机的失火判定装置和失火判定方法 内燃机通过扭力元件和行星齿轮机构进行，由电动机执行振动抑制控制。

解决方案：临时确定的阈值A1，A2由两个电机的振动抑制控制中的反馈控制的关系表达式和发动机转速通过比例项P1，P2来设定，并且基于错误的临时确定 在这些用于临时确定的阈值A1，A2上（S120，S130）。 当暂时确定失火时，使用比例项P1，P2设定用于主确定的阈值J01，J02，J21，J22，J41和J42，并且使用这些阈值来执行失火的主要判定（S150，S160 ）。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2007198304A

公开(公告)日：2007-08-09

申请号：JP2006019177

申请日：2006-01-27

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

Inventor： AKIMOTO HIKOKAZU ,  NISHIGAKI TAKAHIRO

IPC: F02D45/00

CPC classification number: G01M15/046 ,  F02D35/027 ,  F02D41/009 ,  F02D41/0097 ,  F02D41/024 ,  F02D41/1498 ,  F02D2200/1015 ,  G01M15/11

Abstract: PROBLEM TO BE SOLVED: To accurately determine the misfire of an internal combustion engine having a control device even when the warmup of the control device is promoted or the warmup is completed. SOLUTION: When a catalyst warmup promoting control is not performed, a misfire is determined by classifying the groups of intermittent misfire, single misfire, and continuous misfire by comparing the 30° required time T30 calculated as the time required for a crankshaft to rotate by 30° with thresholds Tref1 and Tref2 (S120 to S150). When the catalyst warmup promoting control is performed, the misfire is determined by classifying the groups of continuous misfire, and intermittent misfire by comparing the 30° required time T30 calculated as the time required for a crankshaft to rotate by 30° with thresholds Tref3 and Tref4 (S160 to S190). Consequently, the misfire of the engine can be accurately determined irrespective of whether the catalyst warmup promoting control is performed or not. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：即使当促进控制装置的预热或者完成暖机时，也能准确地确定具有控制装置的内燃机的失火。 解决方案：当不执行催化剂预热促进控制时，通过将按曲轴所需时间计算的30°所需时间T30与曲轴的时间进行比较，对间歇性失火，单次失火和连续失火进行分类来确定失火 以阈值Tref1和Tref2旋转30°（S120至S150）。 当执行催化剂预热促进控制时，通过将以曲轴旋转30秒的时间计算的30°所需时间T30与阈值Tref3和Tref4进行比较来分类连续失火组和间歇性失火来确定失火 （S160〜S190）。 因此，无论是否执行催化剂预热促进控制，都可以准确地确定发动机的失火。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2007198296A

公开(公告)日：2007-08-09

申请号：JP2006019031

申请日：2006-01-27

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

Inventor： AKIMOTO HIKOKAZU ,  NISHIGAKI TAKAHIRO

IPC: F02D45/00 ,  F02D29/02

CPC classification number: B60W20/00 ,  B60K6/365 ,  B60K6/445 ,  B60L3/0023 ,  B60L11/123 ,  B60L11/14 ,  B60L2240/44 ,  B60L2240/441 ,  B60L2240/486 ,  B60L2240/507 ,  B60W10/06 ,  B60W2510/06 ,  B60W2540/16 ,  B60W2710/06 ,  F02D29/02 ,  F02D41/0225 ,  F02D41/1498 ,  F16H2037/0873 ,  G01M15/11 ,  Y02T10/6217 ,  Y02T10/6239 ,  Y02T10/7077

Abstract: PROBLEM TO BE SOLVED: To accurately determine the misfire of an internal combustion engine in a power output device having a transmission means connected to an electric motor and a drive shaft. SOLUTION: When the shift stage of a transmission is Lo, a first threshold A1 and a second threshold for determining the misfire of the engine are set (S220, S280), and the misfire is determined based on the 360° difference Δ360 obtained using the 30° required time T30 calculated as the time required for the 30° rotation of a crankshaft and the first threshold A1 and the second threshold (S230, S290). When the shift stage of the transmission is Hi, a first threshold A2 determined to have a tendency to be smaller than the first threshold A1 and a second threshold are set (S330, S390), and the misfire is determined (S340, S400). Like this, the misfire is determined considering the effects of the driving states of a motor MG2, the transmission, and a planetary gear mechanism on the crankshaft of the engine according to the state of the shift stage. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：准确地确定具有连接到电动机和驱动轴的传动装置的动力输出装置中的内燃机的失火。 解决方案：当变速器的变速级为Lo时，设定用于确定发动机失火的第一阈值A1和第二阈值（S220，S280），并且基于360°差Δ360确定失火 使用以曲轴30°旋转所需的时间计算的30°所需时间T30和第一阈值A1和第二阈值（S230，S290）获得。 当传输的移位级为Hi时，设定确定为具有小于第一阈值A1和第二阈值的趋势的第一阈值A2（S330，S390），并且确定失火（S340，S400）。 这样，根据变速级的状态，考虑到电动机MG2，变速器和行星齿轮机构在发动机曲轴上的驱动状态的影响来确定失火。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2006233800A

公开(公告)日：2006-09-07

申请号：JP2005046964

申请日：2005-02-23

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

Inventor： AKIMOTO HIKOKAZU

IPC: F02D45/00 ,  B60K6/24 ,  B60K6/445 ,  F02P17/12

CPC classification number: Y02T10/6239 ,  Y02T10/6295

Abstract: PROBLEM TO BE SOLVED: To precisely determine misfire of an internal combustion engine until completion of warming-up of the engine. SOLUTION: Threshold values A1, A21, A22 used to determine temporary misfire and actual misfire based on cooling water temperature Tw when starting the engine having six cylinders in series are set (S110) to determine temporary misfire for indicating whether rotation fluctuation Nxd per crank angle 120° CA exceeds the threshold value A1 or not by corresponding to ignition timing of each cylinder of the engine (S150). When it is determined that misfire occurs in temporary misfire determination, ignition time advances and increase of amount of fuel is compensated to make a combustion state of the engine satisfactory (S170) and determine actual misfire using the threshold values A21, A22 (S190). Consequently, misfire of the engine when warming up by catalyst can be determined properly and precisely. COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：精确地确定内燃机的失火，直到发动机的预热完成。

解决方案：设定启动具有六个气缸串联的发动机时基于冷却水温度Tw的暂时失火和实际失火的阈值A1，A21，A22（S110），以确定临时失火，以指示旋转波动Nxd 每个曲柄角120°CA超过阈值A1或不通过对应于发动机的每个气缸的点火正时（S150）。 当确定在暂时失火确定中发生失火时，点火时间提前并且补偿燃料量的增加以使发动机的燃烧状态令人满意（S170）并且使用阈值A21，A22确定实际失火（S190）。 因此，可以正确且精确地确定发动机在催化剂加热时失火。 版权所有（C）2006，JPO＆NCIPI