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1. 发明专利

JP2008057370A Variable valve timing control device of internal combustion engine 有权
标题翻译：内燃机可变阀定时控制装置
公开(公告)号：JP2008057370A
公开(公告)日：2008-03-13
申请号：JP2006233281
申请日：2006-08-30
申请人： Denso Corp , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社デンソー
发明人： TANAKA TOSHIKAZU , INOUE MASAOMI , TAKEMURA YUICHI , MASHIKI ZENICHIRO
IPC分类号： F02D13/02 , F01L9/04
CPC分类号： F01L1/34 , F01L1/352
摘要： PROBLEM TO BE SOLVED: To prevent the temperature of the coil of a motor from being overheated beyond an allowable temperature range in an internal combustion engine in which a valve timing is varied by using the motor as the drive source.
SOLUTION: An ECU 30 estimates a motor current (drive current for a motor 26) according to a target motor rotational speed, an actual motor rotational speed, and an engine rotational speed. When the estimated motor current exceeds a set value corresponding to a heating limit current value, the varied amount of the target motor rotational speed (corrected amount of rotational speed F/B) output from the ECU 30 to an EDU 31 is limited to limit the motor current controlled for duty by the EDU 31. Since the motor current can be so limited that the heating amount of the motor 26 does not exceed a heating limit, the coil of the motor 26 can be prevented from being overheated beyond the allowable temperature range, and the degradation of the durability and the trouble of the motor 26 due to overheating can be prevented from occurring.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了防止电动机的线圈的温度超过通过使用电动机作为驱动源来改变气门正时的内燃机中允许的温度范围之外的过热。解决方案：ECU30根据目标电动机转速，实际电动机转速和发动机转速来估计电动机电流（电动机26的驱动电流）。当估计的电动机电流超过对应于加热极限电流值的设定值时，将从ECU30输出到EDU31的目标电动机转速（校正转速量F / B）的变化量限制为限制电动机电流由EDU31控制占空比。由于电动机电流可以如此限制，使得电动机26的加热量不超过加热极限，所以可以防止电动机26的线圈过热超过允许的温度范围并且可以防止由于过热而导致的电机26的耐久性和故障的恶化。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2010117367A Knocking determination device of internal combustion engine 有权
标题翻译：内燃机起动确定装置
公开(公告)号：JP2010117367A
公开(公告)日：2010-05-27
申请号：JP2010031279
申请日：2010-02-16
申请人： Denso Corp , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社デンソー
发明人： KANEKO MASATO , KASASHIMA KENJI , SENDA KENJI , KAMIO SHIGERU , INOUE MASAOMI , TAKEMURA YUICHI
IPC分类号： G01H17/00 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To precisely determine whether knocking generates.
SOLUTION: The engine ECU executes the program including steps of: (S104) calculating the correlation coefficient K relating to the deviation between vibration wave form and knocking wave model by comparing the vibration wave form of the engine and the knocking wave model which is previously stored at a plurality of timing; (S106) calculating the knocking intensity N based on the largest correlation coefficient K among the calculated correlation coefficients K; (S110) determining the generation of knocking if the knocking intensity N is larger than the previously determined decision value, (YES in S108); and (S114) determining the generation of knocking doesn't occur if the knocking intensity N is not larger than the previously determined decision value (NO in S108).
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：精确确定是否产生爆震。解决方案：发动机ECU执行程序，包括以下步骤：（S104）通过比较发动机的振动波形和敲击波模型来计算与振动波形和爆震波模型之间的偏差相关的相关系数K，其中预先存储在多个定时; （S106）基于计算出的相关系数K中的最大相关系数K计算爆震强度N; （S110）如果爆震强度N大于先前确定的判定值，则确定爆震的产生（S108中为“是”）。如果爆震强度N不大于先前确定的判定值（S108中的“否”），则不会发生确定爆震的产生的（S114）。版权所有（C）2010，JPO＆INPIT

3. 发明专利

JP2008057373A Variable valve timing control device of internal combustion engine 有权
标题翻译：内燃机可变阀定时控制装置
公开(公告)号：JP2008057373A
公开(公告)日：2008-03-13
申请号：JP2006233284
申请日：2006-08-30
申请人： Denso Corp , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社デンソー
发明人： TANAKA TOSHIKAZU , INOUE MASAOMI , TAKEMURA YUICHI , MASHIKI ZENICHIRO
IPC分类号： F02D13/02 , F01L1/34 , F01L1/352
CPC分类号： F01L1/352 , F02D41/009 , F02D2041/1419 , F02D2041/2051
摘要： PROBLEM TO BE SOLVED: To prevent a switching element of a motor drive circuit from being damaged due to the lowering of a power voltage in an internal combustion engine in which a valve timing is varied by using a motor as the drive source.
SOLUTION: An ECU 30 outputs the signal of a target motor speed calculated according to the deviation between a target cam stem phase and an actual cam stem phase to an EDU 31 (motor drive circuit). The EDU 31 so controls, by feedback, the output current (motor current) of the EDU 31 that the deviation between the target motor rotational speed and an actual motor rotational speed can be reduced to control, by feedback, the actual cam stem phase to the target cam stem phase. The ECU 30 limits the varied amount of the target motor rotational speed (corrected amount of rotational speed F/B) output to the EDU 31 to limit the output current of the EDU 31. The ECU 30 also cuts off the output current of the EDU 31 by limiting the varied amount of the target motor rotational speed (corrected amount of rotational speed F/B) output to the EDU 31 when the power voltage of the EDU 31 lowers an operation limiting voltage set higher than a minimum operationally guaranteed voltage to limit the output current of the EDU 31. The ECU 30 also cut off the output current of the EDU 31 when the power voltage lowers the minimum operationally guaranteed voltage.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了防止由于通过使用电动机作为驱动源来改变气门正时的内燃机中的电力电压的降低，马达驱动电路的开关元件被损坏。解决方案：ECU30将根据目标凸轮杆相位和实际凸轮杆相位之间的偏差计算的目标电动机速度的信号输出到EDU 31（电动机驱动电路）。 EDU 31通过反馈来控制EDU31的输出电流（电动机电流），即可以减小目标电动机转速与实际电动机转速之间的偏差，以通过反馈来控制实际的凸轮轴相位目标凸轮杆相。 ECU30限制输出到EDU31的目标电动机转速（校正转速量F / B）的变化量，以限制EDU31的输出电流.ECM30还切断EDU的输出电流 31，当EDU31的电源电压降低设定为比最小操作保证电压设定的操作限制电压以限制时，通过限制输出到EDU 31的目标电动机转速（校正转速量F / B）的变化量 EDU31的输出电流。当电源电压降低最小操作保证电压时，ECU30还切断EDU 31的输出电流。版权所有（C）2008，JPO＆INPIT

4. 发明专利

JP2005299580A Controller of internal combustion engine 有权
标题翻译：内燃机控制器
公开(公告)号：JP2005299580A
公开(公告)日：2005-10-27
申请号：JP2004119850
申请日：2004-04-15
申请人： Denso Corp , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社デンソー
发明人： MASUDA SATORU , INOUE MASAOMI , TAKEMURA YUICHI , KASASHIMA KENJI , KANEKO MASATO
IPC分类号： F02D45/00 , F02D41/24 , G01L23/22
CPC分类号： F02D35/027 , G01L23/225
摘要： PROBLEM TO BE SOLVED: To calculate, with less RAM capacity, the average value and the standard deviation of data when the data extracted from the output of a knock sensor is statistically processed. SOLUTION: Two data (peak value and coefficient of correlation of shape) representing the features of the knock from the output of the knock sensor 28 for each ignition are provided, these two data are annealed to approximately provide the averaged values of these data, and a value obtained by squaring the deviation of the data before and after the annealing is annealed to approximately provide a variance V. A standard deviation is approximately provided by taking the square root of the variance V, and the data are normalized by using the averaged value and the standard deviation (steps S102 to 104). The distribution of the normalized two data is provided, the coefficient of correlation for determining knocking which represents the correlation of the distribution with an ideal knock distribution is calculated, and based on the coefficient of correlation for determining knocking, a knock determination threshold used for determining knocking for each combustion is corrected (steps 105 to 110). COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：当从爆震传感器的输出提取的数据被统计处理时，以较少的RAM容量计算数据的平均值和标准偏差。解决方案：提供了表示来自每个点火的爆震传感器28的输出的爆震特征的两个数据（形状的峰值和相关系数），这两个数据被退火以大致提供这些数据的平均值数据和通过平均退火之前和之后的数据的偏差获得的值被退火以近似地提供方差V.通过取方差V的平方根近似地提供标准偏差，并且通过使用平均值和标准偏差（步骤S102至104）。提供归一化两个数据的分布，计算表示分布与理想爆震分布的相关性的敲击相关系数，并且基于用于确定爆震的相关系数，用于确定爆震判定阈值校正每个燃烧的敲击（步骤105至110）。版权所有（C）2006，JPO＆NCIPI

5. 发明专利

JP2005299579A Knock detection device of internal combustion engine 有权
标题翻译：内燃机启动检测装置
公开(公告)号：JP2005299579A
公开(公告)日：2005-10-27
申请号：JP2004119849
申请日：2004-04-15
申请人： Denso Corp , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社デンソー
发明人： INOUE MASAOMI , TAKEMURA YUICHI , MASUDA SATORU , KASASHIMA KENJI , KANEKO MASATO
IPC分类号： F02P17/12 , F02D45/00 , G01L23/22
CPC分类号： G01L23/225
摘要： PROBLEM TO BE SOLVED: To accurately detect the background level of a knock sensor output without being affected by knocking and noise.
SOLUTION: The signal levels of a plurality of frequency bands are extracted from vibratory waveform signals outputted from knock sensors 11 and 12 by a filter treatment part 18, the averaged value of the signal levels of the plurality of frequency bands when a difference between the signal levels of the plurality of frequency bands is minimum is calculated, and the averaged value is taken as a background level. Based on the signal levels of the plurality of frequency bands, a knock characteristic parameter presenting the characteristic of knock is calculated, and the knock characteristic parameter is compared with the background level to provide a knock strength. When the knock strength is equal to or more than a knock determination value, the knock exceeding an allowable level is considered to occur. When the knock strength is smaller than the knock determination value, the knock exceeding the allowable level is considered not to occur.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：精确地检测爆震传感器输出的背景水平，而不受撞击和噪声的影响。解决方案：通过滤波处理部分18从振动传感器11和12输出的振动波形信号中提取多个频带的信号电平，当频差为多个频带时的信号电平的平均值计算多个频带的信号电平之间的最小值，并将平均值作为背景电平。基于多个频带的信号电平，计算呈现敲击特性的爆震特性参数，并将爆震特征参数与背景水平进行比较以提供爆震强度。当敲击强度等于或大于爆震判定值时，认为发生超过允许水平的爆震。当爆震强度小于爆震判定值时，认为不超过允许值的爆震。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2008069719A Variable valve timing system 有权
标题翻译：可变阀门时序系统
公开(公告)号：JP2008069719A
公开(公告)日：2008-03-27
申请号：JP2006249653
申请日：2006-09-14
申请人： Denso Corp , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社デンソー
发明人： MASHIKI ZENICHIRO , INOUE YASUMICHI , HATTORI MASATAKA , TAKAGI NOBORU , URUSHIBATA HARUYUKI , INOUE MASAOMI , TAKEMURA YUICHI , TANAKA TOSHIKAZU
IPC分类号： F02D13/02 , F01L1/34
CPC分类号： F01L1/352 , F01L1/022 , F01L1/026 , F01L2001/0537 , F01L2800/00 , F01L2820/032 , F01L2820/041 , F01L2820/042 , F02D13/0238 , Y02T10/18
摘要： PROBLEM TO BE SOLVED: To provide a variable valve timing system using an electric motor as an actuator, capable of appropriately detecting the overheated state of the electric motor and a drive unit so as to protect the system and improve the controlling performance. SOLUTION: An actuator operation quantity setting portion 6000 generates a rotational speed command value Nmref for the electric motor 2060 so that the phase of an intake valve is changed to match a target phase. An electric-motor EDU 4100 controls electric power PWm supplied to the electric motor so that the electric motor 2060 operates in accordance with the rotational speed command value Nmref. An overheat judgment portion 6200 judges whether it is necessary to restrict heat generation or not based on comparison between information showing the electric power PWm supplied to the motor and a criterion of judgment DTYj. A command value restricting portion 6300 restricts the rotational speed command value Nmref fed to the electric-motor EDU 4100 within a predetermined range when it is judged that the restriction of heat generation is required. A judgment criterion setting portion 6100 sets the judgment criterion DTYj to be variable according to the rotational speed of the electric motor 2060. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种使用电动机作为致动器的可变气门正时系统，能够适当地检测电动机的过热状态和驱动单元，以保护系统并提高控制性能。解决方案：致动器操作量设定部分6000产生用于电动机2060的转速指令值Nmref，使得进气门的相位变化以匹配目标相位。电动机EDU 4100控制提供给电动机的电力PWm，使得电动机2060根据转速指令值Nmref进行动作。过热判断部6200根据供给电动机的电力PWm的信息与判定标准DTYj的比较，判断是否需要限制发热。当判断需要限制发热时，指令值限制部分6300将提供给电动机EDU 4100的转速指令值Nmref限制在预定范围内。判断基准设定部6100根据电动机2060的转速将判定基准DTYj设定为可变的。（C）2008，JPO＆INPIT

7. 发明专利

JP2008057371A Variable valve timing control device of internal combustion engine 有权
标题翻译：内燃机可变阀定时控制装置
公开(公告)号：JP2008057371A
公开(公告)日：2008-03-13
申请号：JP2006233282
申请日：2006-08-30
申请人： Denso Corp , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社デンソー
发明人： TANAKA TOSHIKAZU , INOUE MASAOMI , TAKEMURA YUICHI , MASHIKI ZENICHIRO
IPC分类号： F02D13/02 , F01L1/34
CPC分类号： F01L1/352 , F02D13/02 , F02D35/0007 , F02D2041/001 , Y02T10/18
摘要： PROBLEM TO BE SOLVED: To prevent the temperature of the coil of a motor from being overheated beyond an allowable temperature range in an internal combustion engine in which a valve timing is varied by using the motor as the drive source.
SOLUTION: An ECU 30 estimates a motor current (drive current for a motor 26) according to a target motor rotational speed, an actual motor rotational speed, and an engine rotational speed. When the estimated motor current exceeds an upper set value corresponding to a heating limit current value, the varied amount of the target motor rotational speed (corrected amount of rotational speed F/B) output from the ECU 30 to an EDU 31 is limited to limit the motor current controlled for duty by the EDU 31. The upper limit set value is so set that the estimated motor current surpasses the upper limit set value and a motor current limiting operation is continued when the state in which a deviation between the target motor rotational speed and the actual motor rotational speed is equal to or larger than a predetermined value is continued. Consequently, the degradation of the durability and the trouble of the motor 26 due to overheating can be surely prevented from occurring.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了防止电动机的线圈的温度超过通过使用电动机作为驱动源来改变气门正时的内燃机中允许的温度范围之外的过热。解决方案：ECU30根据目标电动机转速，实际电动机转速和发动机转速来估计电动机电流（电动机26的驱动电流）。当估计的电动机电流超过对应于加热极限电流值的上限设定值时，从ECU30输出到EDU31的目标电动机转速（校正转速量F / B）的变化量被限制为限制电动机电流由EDU31控制占空比。上限设定值被设定为使得估计的电动机电流超过上限设定值，并且当目标电动机旋转时的偏差的状态下继续进行电动机电流限制操作速度和实际的电机转速等于或大于预定值继续。因此，能够可靠地防止由于过热导致的耐久性劣化和马达26的故障的发生。版权所有（C）2008，JPO＆INPIT

8. 发明专利

JP2006177259A Knocking determining device for internal combustion engine 审中-公开
标题翻译：用于内燃机的闭锁确定装置
公开(公告)号：JP2006177259A
公开(公告)日：2006-07-06
申请号：JP2004371898
申请日：2004-12-22
申请人： Denso Corp , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社デンソー
发明人： KANEKO MASATO , KASASHIMA KENJI , SENDA KENJI , KAMIO SHIGERU , INOUE MASAOMI , TAKEMURA YUICHI
IPC分类号： F02D45/00 , G01H17/00 , G01M15/00
CPC分类号： G01L23/225
摘要： PROBLEM TO BE SOLVED: To accurately determine whether knocking has occurred.
SOLUTION: An engine ECU executes a program including steps of comparing the vibration waveform of an engine with a prestored knock waveform model at a plurality of timings to compute correlation coefficients K which are values related to deviation between the vibration waveform and the knock waveform model (104), computing knock strength N based on the largest correlation coefficient K out of the computed correlation coefficients K (S106), determining that knocking has occurred (S110) when the knock strength N is larger than a predetermined decision value (Yes in S108), and determining that knocking has not occurred (S114) when the knock strength N is not larger than the predetermined decision value (No in S108).
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：准确地确定是否发生了敲击。发动机ECU执行包括以下步骤的程序：将发动机的振动波形与多个定时的预先存储的爆震波形模型进行比较，以计算与振动波形和爆震之间的偏差相关的值的相关系数K 波形模型（104），基于所计算的相关系数K（S106）中的最大相关系数K计算爆震强度N，确定爆震强度N大于预定判定值时已经发生爆震（S110）（是在S108中），并且当爆震强度N不大于预定判定值时，确定没有发生爆震（S114）（S108中为否）。版权所有（C）2006，JPO＆NCIPI

9. 发明专利

JP2005330954A Knocking determination device for internal combustion engine, and ignition control system including the same device 有权
标题翻译：用于内燃机的锁定确定装置和包括相同装置的点火控制系统
公开(公告)号：JP2005330954A
公开(公告)日：2005-12-02
申请号：JP2004371489
申请日：2004-12-22
申请人： Denso Corp , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社デンソー
发明人： KASASHIMA KENJI , KANEKO MASATO , SENDA KENJI , KAMIO SHIGERU , INOUE MASAOMI , TAKEMURA YUICHI
IPC分类号： F02P5/152 , F02D45/00 , F02P5/153 , G01L23/22
CPC分类号： G01L23/225 , F02P5/152 , F02P5/1521 , Y02T10/46
摘要： PROBLEM TO BE SOLVED: To determine if knocking is generated or not with favorable precision. SOLUTION: An engine ECU executes a step (S100) to detect waveform of engine vibration at a predetermined knocking detecting gate, a step (S102) to determine if a knocking waveform model stored in a memory coincides with the detected vibration waveform by a predetermine range or less, a step (S104) to determine that knocking has occurred in a case where the knocking waveform model coincides with the detected vibration waveform by the predetermined range or less (S102: YES), and a step (S108) to determine that no knocking has occurred in a case where the knocking waveform model does not coincide with the detected vibration waveform by the predetermined range or less (S102: NO). COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：确定是否产生具有良好精度的爆震。解决方案：发动机ECU执行步骤（S100）以检测预定爆震检测门处的发动机振动的波形;步骤（S102），以确定存储在存储器中的爆震波形模型是否与检测到的振动波形一致预定范围以下的步骤（S104），在将所述检测到的振动波形与所述检测到的振动波形一致的情况下，确定所述爆震波形与所述振动波形一致的步骤（S102：是）的步骤（S104）确定在爆震波形模型与检测到的振动波形不一致预定范围或更小的情况下没有发生爆震（S102：否）。版权所有（C）2006，JPO＆NCIPI

10. 发明专利

JP2005188297A Knocking detection device 有权
标题翻译：闭锁检测装置
公开(公告)号：JP2005188297A
公开(公告)日：2005-07-14
申请号：JP2003426928
申请日：2003-12-24
申请人： Denso Corp , Nippon Soken Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社デンソー , 株式会社日本自動車部品総合研究所
发明人： OE SHUHEI , IWADE JUN , MURATE NOBUYUKI , KANEKO MASATO , KASASHIMA KENJI , KAMIO SHIGERU , INOUE MASAOMI
IPC分类号： F02D45/00
摘要： PROBLEM TO BE SOLVED: To correctly determine whether or not knocking occurs, even when mechanical noise is generated.
SOLUTION: The knocking detection device comprises: a knock sensor 500 detecting a signal value indicating vibration of a cylinder block of an engine 100; and a Digital Signal Processor (DSP) 900 storing a signal detected by the knock sensor 500 to make the signal correspond to a crankshaft angle, dividing the stored signal into predetermined short time intervals, performing Fast Fourier Transform (FFT) for each time interval, and determining the occurrence of the knocking if a peak frequency as a result of the FFT for each time interval is changed to a low-frequency region side according to time series.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：即使产生机械噪声，正确地确定是否发生爆震。爆震检测装置包括：爆震传感器500，其检测指示发动机100的气缸体的振动的信号值; 以及数字信号处理器（DSP）900，存储由爆震传感器500检测到的信号，以使信号对应于曲轴角度，将存储的信号划分成预定的短时间间隔，对每个时间间隔执行快速傅里叶变换（FFT）并且如果根据时间序列将作为每个时间间隔的FFT的结果的峰值频率改变为低频区域侧，则确定爆震的发生。版权所有（C）2005，JPO＆NCIPI

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