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1. 发明专利

JP2011196317A Abnormal condition diagnosis device 有权
标题翻译：异常状态诊断装置
公开(公告)号：JP2011196317A
公开(公告)日：2011-10-06
申请号：JP2010066414
申请日：2010-03-23
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： NAKAMURA TAKASHI
IPC分类号： F02D45/00
CPC分类号： Y02T10/40
摘要： PROBLEM TO BE SOLVED: To accurately determine the presence/absence of an abnormal condition in a catalyst downstream sensor in determination of the presence/absence of degradation of a catalyst and the determination of the presence/absence of an abnormal condition in the catalyst downstream sensor, and to suppress spending of a lot of time to complete these determinations.SOLUTION: Responsiveness of an oxygen sensor 18 is acquired based on an oxygen occlusion amount C1max of a three-way catalyst acquired during an active air-fuel ratio control, an oxygen occlusion amount C2max of a three-way catalyst acquired during a fuel cut control, and correlation in responsiveness of the oxygen sensor 18 between in the active air-fuel ratio control and in the fuel cut control. When the presence/absence of an abnormal condition in the oxygen sensor 18 is accurately determined in the determination of the presence/absence of deterioration of the three-way catalyst and the determination of the presence/absence of an abnormality in the oxygen sensor 18, the number of parameters required for these determinations is suppressed to two of the oxygen occlusion amount C1max and the oxygen occlusion amount C2max. Then, it takes little time for acquisition of the parameters.
摘要翻译：要解决的问题：为了准确地确定催化剂下游传感器中的异常状况的存在/不存在，以确定催化剂劣化的存在/不存在以及催化剂下游传感器中是否存在异常状态并且抑制花费大量时间来完成这些测定。解决方案：基于在主动空燃比控制期间获得的三元催化剂的氧吸留量C1max，氧气传感器18的氧气在燃料切断控制期间获取的三元催化剂的吸留量C2max以及氧气传感器18在主动空燃比控制和燃料切断控制之间的响应性的相关性。当在确定三元催化剂劣化的判定和氧传感器18中是否存在异常的确定中，在氧传感器18中存在/不存在异常情况的情况下，将这些测定所需的参数的数量抑制为氧吸留量C1max和氧吸留量C2max中的2个。然后，几乎没有时间获取参数。

2. 发明专利

JP2010196482A Abnormality determination device for oxygen sensor 有权
标题翻译：氧传感器异常判定装置
公开(公告)号：JP2010196482A
公开(公告)日：2010-09-09
申请号：JP2009039211
申请日：2009-02-23
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： NAKAMURA TAKASHI
IPC分类号： F02D45/00 , F02D41/22
CPC分类号： F02D41/1495 , F01N11/007 , F01N2550/00 , F01N2560/025 , F02D41/123 , F02D41/1441 , Y02T10/47
摘要： PROBLEM TO BE SOLVED: To provide an abnormality determination device for an oxygen sensor provided downstream of a catalyst and determining the abnormality of the oxygen sensor, suppressing erroneous determination caused by such an event that the output value of the oxygen sensor is gradually changed to a lean side before a fresh air reaches the oxygen sensor downstream of the catalyst, and enabling efficient abnormality determination with the improved accuracy of determination on whether the event occurs or not. SOLUTION: A first determination means acquires the lowered amount of the output value of the oxygen sensor during a period from an idle-on time to the start of fuel cut, and determines whether the lowered amount of the output value is smaller than a preset reference lowered amount or not (ST2-ST5). A second determination means determines whether a response time required for the output value of the oxygen sensor to be changed from a first reference value to a second reference value is longer than a preset reference response time or not after the fuel cut is started (ST8-ST14). When positive determination is made by the first determination means and positive determination is made by the second determination means, the oxygen sensor is determined to be abnormal (ST18). COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种设置在催化剂下游的氧传感器的异常判定装置，并且确定氧传感器的异常，抑制由氧传感器的输出值逐渐变大的事件引起的错误判定在新鲜空气到达氧化催化剂下游的氧气传感器之前变为贫乏侧，并且可以通过提高对该事件是否发生的确定的准确性进行有效的异常确定。解决方案：第一确定装置在从怠速启动时间到开始燃料切断的时间段期间获取氧传感器的输出值的降低量，并且确定输出值的降低量是否小于预设参考降低量（ST2-ST5）。第二确定装置确定在燃料切断开始之后，氧传感器的输出值是否从第一参考值改变为第二参考值所需的响应时间是否长于预设的参考响应时间（ST8- ST14）。当由第一确定装置进行肯定确定并且由第二确定装置进行肯定确定时，氧传感器被确定为异常（ST18）。版权所有（C）2010，JPO＆INPIT

3. 发明专利

JP2005325751A Throttle valve and control device of internal combustion engine having this throttle valve 审中-公开
标题翻译：具有这种阀门的内燃机的节流阀和控制装置
公开(公告)号：JP2005325751A
公开(公告)日：2005-11-24
申请号：JP2004143939
申请日：2004-05-13
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： NAKAMURA TAKASHI , ITO MASAHIRO
IPC分类号： F02D9/02 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To perform normal operation of a throttle valve at a low temperature, by precisely detecting a deposit state and a freezing state of frost of the throttle valve.
SOLUTION: An ECU executes a program including a step (S100) of detecting a temperture state of an engine from an intake air temperature sensor and a water temperature sensor, a step (S110) of determining whether or not to be a low temperature condition reaching icing on the basis of the temperature state, a step (S130) of determining whether predetermined time passes after starting idling or the predetermined time passes from reversal operation of the last time when a measured air flow rate is a specified value or less to the minus side more than a flow rate generated to throttle opening when the throttle valve is a normal state (YES in S120), and a step (S140) of reversing the throttle valve by substantially 180 degrees when the predetermined time passes after starting the idling or the predetermined time passes after executing the reversal operation of the last time (YES in S130).
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过精确检测节流阀的霜冻的沉积状态和冻结状态，能够在低温下进行节气门的正常运转。解决方案：ECU执行包括从进气温度传感器和水温传感器检测发动机的温度状态的步骤（S100）的程序，确定是否为低的步骤（S110）温度状态基于温度状态达到结冰的步骤（S130），在测定的空气流量为规定值以上时，判定在开始空转之后经过预定时间或经过上一次的反转操作的规定时间在节流阀为通常状态时产生到节气门开度的流量的负侧（S120中为“是”），以及在启动后的规定时间过去时将节气门反转大致180度的步骤（S140）执行最后一次的反转操作后，空转或预定时间过去（S130中为“是”）。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2012067719A Abnormality determination apparatus 有权
标题翻译：异常判定装置
公开(公告)号：JP2012067719A
公开(公告)日：2012-04-05
申请号：JP2010215177
申请日：2010-09-27
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： NAKAMURA TAKASHI , AISAKA TAKEHO
IPC分类号： F02D45/00 , F01N3/20 , F01N3/24 , F02D41/14
CPC分类号： F02D41/1441 , F01N3/101 , F01N11/007 , F01N2550/02 , F01N2560/025 , F01N2560/14 , F01N2900/0408 , F01N2900/1624 , F02D41/1408 , Y02T10/22 , Y02T10/47
摘要： PROBLEM TO BE SOLVED: To provide an abnormality determination apparatus which satisfies both execution of a highly accurate abnormality determination and execution of a quick abnormality determination.SOLUTION: This apparatus repeatedly detects and stores oxygen storage capacity Cf of an exhaust emission control catalyst at a time interval, and determines the existence of the abnormality occurrence based on a plurality of these stored data. When a RAM of an electronic control unit is cleared from a battery, the storage number of the oxygen storage capacity Cf thereafter is counted as a count value CA (S202). The execution of the abnormality determination is permitted (S205) on condition that the count value CA reaches a first threshold value N1 (S204:YES) in the first trip after clearing the battery (S203:YES), and is permitted (S205) on condition that the count value CA reaches a second threshold value N2 smaller than the first threshold value N1 (S206:YES) on and after the second trip after clearing the battery (S203:NO).
摘要翻译：要解决的问题：提供一种满足高精度异常判定的执行和快速异常判定的执行的异常判定装置。解决方案：该装置以时间间隔重复地检测和存储废气排放控制催化剂的储氧容量Cf，并且基于多个这些存储数据确定异常发生的存在。当从电池清除电子控制单元的RAM时，其后的氧气存储容量Cf的存储数被计数为计数值CA（S202）。在计算值CA在清除电池后的第一次行程中达到第一阈值N1（S204：是）的状态下允许执行异常判定（S205）（S203：是），并允许（S205）条件是在清除电池之后，计数值CA达到小于第一阈值N1（S206：是）的第二阈值N2（S203：否）。版权所有（C）2012，JPO＆INPIT

5. 发明专利

JP2011241785A Apparatus for acquiring responsibility of oxygen concentration sensor 有权
标题翻译：获取氧气浓度传感器责任的设备
公开(公告)号：JP2011241785A
公开(公告)日：2011-12-01
申请号：JP2010116331
申请日：2010-05-20
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： KAWAMURA ARISUKE , MATSUMOTO TAKUYA , NAKAMURA TAKASHI , KIDOKORO TORU , SAWADA YUTAKA , IWASAKI YASUSHI , SATO MAKOTO
IPC分类号： F02D41/14 , F01N3/20 , F02D45/00
CPC分类号： F02D41/1441 , F01N3/101 , F01N11/007 , F01N2560/025 , F02D41/0235 , F02D41/1456 , F02D41/1495 , F02D2041/1431 , F02D2200/0816 , Y02T10/22 , Y02T10/47
摘要： PROBLEM TO BE SOLVED: To accurately obtain the responsibility of an electromotive force-type oxygen concentration sensor disposed below a three-way catalyst in an exhaust channel.SOLUTION: The fact that "with respect to a process in which the output value of a downstream air-fuel ratio sensor (sensor output value) is inverted from the minimum output value to the maximum output value during execution of an active control, the local maximum and minimum values of the secondary differential value of the sensor output value is widely affected by the size of the response delay of the downstream air-fuel ratio sensor and the size of the degree of the degradation of the three-way catalyst" is utilized. By preliminarily acquiring and memorizing, as maps, these relations obtained through an experiment, and applying the "local maximum and minimum values of the secondary differential value of the sensor output value" calculated from the transition of the sensor output value obtained during execution of the active control to the maps, the response delay (time constant) of the downstream air-fuel ratio sensor is obtained.
摘要翻译：要解决的问题：精确地获得在排气通道中设置在三元催化剂下方的电动势型氧浓度传感器的责任。解决方案：在执行主动控制期间相对于下游空燃比传感器的输出值（传感器输出值）从最小输出值反转到最大输出值的处理的事实传感器输出值的二次微分值的局部最大值和最小值受下游空燃比传感器响应延迟的大小和三元催化剂劣化程度的大小影响很大 “被利用。通过预先获取并存储通过实验获得的这些关系的映射，并且应用从执行期间获得的传感器输出值的转变计算出的“传感器输出值的二次微分值的局部最大值和最小值” 对地图进行主动控制，得到下游空燃比传感器的响应延迟（时间常数）。版权所有（C）2012，JPO＆INPIT

6. 发明专利

JP2005307939A Throttle valve, and internal combustion engine controller equipped with the throttle valve 审中-公开
标题翻译：节流阀和内燃机控制器配有节流阀
公开(公告)号：JP2005307939A
公开(公告)日：2005-11-04
申请号：JP2004129725
申请日：2004-04-26
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： NAKAMURA TAKASHI
IPC分类号： F02D9/10 , F02D9/02 , F02D11/10 , F02D41/22
CPC分类号： Y02T10/40
摘要： PROBLEM TO BE SOLVED: To materialize normal action of a throttle valve at a low temperature, by preventing frost from accumulating on a throttle valve, and preventing the throttle valve from adhering due to deposited frost.
SOLUTION: The throttle valve 118 includes a disc-shaped valve element 118A having a diameter same as an inner diameter of a bore in the throttle valve 118, a motor for actuating the valve element 118A from a fully-closed state to a fully-opened state, a throttle position sensor for detecting the opening of the valve element 118A, and a speed-reducing gear for transmitting rotating force to a gear provided on a rotating shaft of the valve element 118A by reducing the speed of rotating force from the gear provided on the rotating shaft of the motor. A square conical projecting portion or recessed portion with low height is provided on a surface of the valve element 118A, and a flow of air passing through the throttle valve 118 is irregularly disturbed by the projecting portion or recessed portion.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过防止节流阀积聚在节流阀上，防止节流阀由于沉积的结霜而附着在低温下，实现节流阀的正常动作。解决方案：节流阀118包括具有与节流阀118中的孔的内径相同的直径的盘形阀元件118A，用于将阀元件118A从完全关闭状态致动到马达完全打开状态，用于检测阀元件118A的打开的节气门位置传感器，以及减速齿轮，用于通过降低旋转力的速度将旋转力传递到设置在阀元件118A的旋转轴上的齿轮齿轮设置在电动机的旋转轴上。在阀元件118A的表面上设置有高度方形的圆锥形突出部或凹部，通过节流阀118的空气流被突出部或凹部不规则地打乱。版权所有（C）2006，JPO＆NCIPI

7. 发明专利

JP2004060855A Self piercing rivet 审中-公开
公开(公告)号：JP2004060855A
公开(公告)日：2004-02-26
申请号：JP2002223335
申请日：2002-07-31
申请人： Kobe Steel Ltd , Nippon Pop Rivets & Fasteners Ltd , Toyota Motor Corp , トヨタ自動車株式会社 , ポップリベット・ファスナー株式会社 , 株式会社神戸製鋼所
发明人： KATO TORU , UMEMURA HIRONORI , NAITO CHOJI , IGUCHI HIROYUKI , AONO MASAMICHI , NAKAMURA TAKASHI , INAMORI SHIGERU , YOSHIHARA SHINJI , IWASE SATORU , WATARI MASATO , UMEMOTO SHUNICHI
IPC分类号： B21J15/02 , B21J15/08 , F16B5/04 , F16B19/08
CPC分类号： F16B5/04 , B21J15/025 , B21J15/08 , F16B19/086 , Y10T29/49837 , Y10T29/49943 , Y10T29/49956
摘要： PROBLEM TO BE SOLVED: To provide a self piercing rivet which can obtain enough undercut. SOLUTION: The self piercing rivet 1 is made of aluminium or aluminium alloy and composed of a flange 5 of large diameter and a shank section 7 extending from the flange and forming a hollow 6 inside of it and the shank section is formed such that the outside diameter of D1 is formed in a right cylinder. The cavity 6 of the shank section is formed so as to have a tapered conical section 10 for converging with an angle α to the flange side from the edge of the shank and a right cylindrical section 11 of an inside diameter D2 to the edge 14 of the flange 5 from the conical section 10. Almost flat edge face 13 of ring shape with an outside diameter D1 and an radial length T1 is formed at the edge of the shank section and an angle α of the conical section of the cavity is 70-110 degrees. COPYRIGHT: (C)2004,JPO

8. 发明专利

JP2004034987A Light distribution controller for headlamp 有权
公开(公告)号：JP2004034987A
公开(公告)日：2004-02-05
申请号：JP2003291200
申请日：2003-08-11
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： MORI TAKAKAZU , NAKAMURA TAKASHI
IPC分类号： B60Q1/08 , B60Q1/14
CPC分类号： F21S41/698
摘要： PROBLEM TO BE SOLVED: To provide a light distribution controller for a headlamp, capable of attaining high visibility.
SOLUTION: This light distribution controller is provided with a gazing distance calculating means of calculating a gazing distance of a driver according to vehicle speed, a cutline/deviation angle calculating means of calculating at least either a cutline or a deviation angle, and a headlamp light distribution control means of controlling a luminous intensity distribution through an actuator based on each value calculated by these means. The headlamp light distribution control means, equipped with a headlamp high/lower determination means, sets a high beam at the gazing distance in a high beam mode and sets a lower beam at a predetermined gazing distance. The headlamp light distribution control means 5, equipped with a headlamp high/lower determination means 6, sets the high beam at the gazing distance in a high beam mode and sets the lower beam at the predetermined gazing distance.
COPYRIGHT: (C)2004,JPO

9. 发明专利

JP2012202211A Catalyst deterioration diagnostic device 有权
标题翻译：催化检测诊断装置
公开(公告)号：JP2012202211A
公开(公告)日：2012-10-22
申请号：JP2011064424
申请日：2011-03-23
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： NAKAMURA TAKASHI , AISAKA TAKEHO , NAKAGAMI TAKUYA
IPC分类号： F01N3/20 , B01D53/86 , F01N3/00 , F02D41/04
摘要： PROBLEM TO BE SOLVED: To provide a catalyst deterioration diagnostic device that can enhance the frequency of deterioration diagnoses while securing high diagnosis accuracy.SOLUTION: An electronic control unit 10 diagnoses deterioration of a three-way catalyst 7 based on the diagnostic data of a fixed number measured during engine operation. Then, the electronic control unit 10 normally decreases the frequency of measuring diagnostic data of each trip necessary for diagnoses by diagnosing deterioration of the three-way catalyst 7 based on the diagnostic data measured in a previous trip and the diagnostic data measured in a current trip. In addition, when the change of the sensor characteristics of an oxygen sensor 9 used for measurement of the diagnostic data is confirmed during the previous trip and the current trip, the deterioration of diagnostic accuracy caused by the change of the sensor characteristics during the diagnostic data measurement process is averted by diagnosing the deterioration of the three-way catalyst 7 based only on the diagnostic data measured in the current trip.
摘要翻译：要解决的问题：提供能够在确保高诊断精度的同时提高劣化诊断的频率的催化剂劣化诊断装置。解决方案：电子控制单元10基于在发动机操作期间测量的固定数量的诊断数据来诊断三元催化剂7的劣化。然后，电子控制单元10通过基于先前行程中测量的诊断数据和当前行程中测量的诊断数据，通过诊断三元催化剂7的劣化来诊断诊断所需的诊断数据的频率通常降低。此外，当在前次跳闸和当前跳闸期间确认用于测量诊断数据的氧传感器9的传感器特性的变化时，诊断数据中的传感器特性变化引起的诊断精度的恶化通过仅基于当前行程中测量的诊断数据诊断三元催化剂7的劣化来避免测量过程。版权所有（C）2013，JPO＆INPIT

10. 发明专利

JP2011208605A Diagnostic device 有权
标题翻译：诊断装置
公开(公告)号：JP2011208605A
公开(公告)日：2011-10-20
申请号：JP2010079108
申请日：2010-03-30
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： NAKAMURA TAKASHI
IPC分类号： F01N3/00 , F01N3/20 , F01N3/24 , F02D41/14 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To provide a diagnostic device which suppresses a deviation of initial delay time in an output signal of a catalyst downstream sensor with respect to an appropriate value, and finds the initial delay time in a short period of time.SOLUTION: The presence or absence of abnormalities of an oxygen sensor 18 related to an initial timing delay of the output signal VO of the oxygen sensor 18 with respect to an oxygen concentration change in exhaust gas is determined using the initial delay time T. An oxygen storage capacity C1max and an intake air amount Ga1, and an oxygen storage capacity C2max and an intake air amount Ga2 used for finding the initial delay time T are respectively obtained in two engine operation areas which are considerably different from each other, such as an engine operation area where active air-fuel ratio control is executable, and an engine operation area where fuel cut control is executed. The discontinuation of fuel injection under the fuel cut control is executed at a higher frequency than the execution of the active air-fuel ratio control on the establishment of execution requirements thereof.
摘要翻译：要解决的问题：提供一种诊断装置，其抑制催化剂下游传感器的输出信号中的初始延迟时间相对于适当值的偏差，并且在短时间内找到初始延迟时间。解决方案：使用初始延迟时间T确定与氧传感器18的输出信号VO相对于排气中的氧浓度变化的初始定时延迟有关的氧传感器18的异常的存在或不存在。储氧容量C1max 在两个发动机操作区域中分别获得用于找到初始延迟时间T的吸入空气量Ga1和储氧能力C2max以及用于求出初始延迟时间T的进气量Ga2，例如发动机运转区域可执行主动空燃比控制，以及执行燃料切断控制的发动机运转区域。在燃料切断控制下的燃料喷射的停止以比执行主动空燃比控制更高的频率执行，以建立其执行要求。

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