公开(公告)号：JP2009085227A

公开(公告)日：2009-04-23

申请号：JP2009014690

申请日：2009-01-26

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

Inventor： MUTO HARUFUMI ,  IDO YUICHIRO

IPC: F02D41/22 ,  F02D41/18 ,  F02D45/00

CPC classification number: Y02T10/40

Abstract: PROBLEM TO BE SOLVED: To provide a control device for an internal combustion engine which determines a target throttle opening based on target suction air quantity and can simply and more surely detect control abnormality.
SOLUTION: This invention provides the control device for the internal combustion engine which determines the target throttle opening based on the target suction air quantity mcta and detects control abnormality by comparing the target suction air quantity mcta and suction air quantity mcfm measured by an air flow meter. Control abnormality during processes of determination of the target throttle opening and control throttle opening and control of a throttle valve can be simply and more surely detected by such control device for the internal combustion engine.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于内燃机的控制装置，其基于目标吸入空气量确定目标节气门开度，并且可以简单且更可靠地检测控制异常。 解决方案：本发明提供一种用于内燃机的控制装置，其基于目标吸入空气量mcta确定目标节气门开度，并通过比较由目标吸入空气量mcta测量的目标吸入空气量mcta和吸入空气量mcfm来检测控制异常 空气流量计 用于内燃机的这种控制装置可以简单且可靠地检测出节气门开度的确定过程中的控制异常和节流阀的控制节气门开度和控制。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2006144565A

公开(公告)日：2006-06-08

申请号：JP2004331713

申请日：2004-11-16

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

Inventor： MUTO HARUFUMI ,  IDO YUICHIRO

IPC: F02D45/00 ,  F02D41/04

CPC classification number: F02D41/0002 ,  F02D11/105 ,  F02D35/0007 ,  F02D41/32 ,  F02D2041/001 ,  F02D2041/1434 ,  F02D2200/0402 ,  F02D2200/0408 ,  Y02T10/42

Abstract: PROBLEM TO BE SOLVED: To provide a controller for an internal combustion engine capable of calculating target throttle opening accurately.
SOLUTION: A target engine load rate KLT is calculated. Target throttle opening θtT required for changing an actual engine load rate into the target engine load rate KLT is calculated based on pressure in an intake pipe being pressure in an intake passage on the downstream side of a throttle valve. Whether the target throttle opening θtT can be realized by a step motor or not is determined. When it is determined that the target throttle opening θtT cannot be realized, the maximum or minimum throttle opening capable of being realized by the step motor is set to the final target throttle opening θtTf. The step motor drives the throttle valve so that actual throttle opening coincides with the final target throttle opening θtTf. Pressure Pm in the intake pipe is inferred based on the final target throttle opening θtTf.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：提供能够精确地计算目标节气门开度的内燃机的控制器。

解决方案：计算目标发动机负载率KLT。 基于作为节流阀下游侧的进气通路中的压力的​​进气管的压力，计算将实际发动机负荷率变更为目标发动机负荷率KLT所需的目标节气门开度θtT。 确定目标节气门开度θtT是否可以通过步进电机来实现。 当确定不能实现目标节气门开度θtT时，能够通过步进电动机实现的最大或最小节气门开度被设定为最终目标节气门开度θtTf。 步进电机驱动节流阀，使得实际的节气门开度与最终目标节气门开度θtTf重合。 基于最终目标节气门开度θtTf推断进气管中的压力Pm。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2007112319A

公开(公告)日：2007-05-10

申请号：JP2005306627

申请日：2005-10-21

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

Inventor： KASAI EIJI ,  YAMAZAKI IPPEI ,  FUJITA SHUJI ,  IDO YUICHIRO ,  AOKI YUTAKA

IPC: B62D6/00 ,  B62D5/04 ,  B62D101/00 ,  B62D119/00 ,  B62D137/00

CPC classification number: B62D5/0481 ,  B62D5/0463

Abstract: PROBLEM TO BE SOLVED: To sufficiently make use of function of an electric power steering device by restricting reduction of power source voltage as much as possible. SOLUTION: When power source voltage is reduced to the base voltage or less, feedback control is performed by adjusting the upper limit value Ilim of the assist current so as to maintain the power source voltage at a target voltage. A feedback base section 100 sets the upper limit current initial value Ilim0, and subtracts the current compensation quantity corresponding to a voltage deviation ΔV from the upper limit current initial value Ilim0. A proportion term compensation section 110 computes the current compensation quantity by multiplying control gains Kp1 and Kp2 different from each other on an upper limit current regulation side and an upper limit current relaxation side, and a differential term compensation section 120 computes the current compensation quantity in response to a change of voltage to a lower side and a change of a differential value to a predetermined value or more. The upper limit current value Ilim is obtained by subtracting the current compensation quantity computed by the proportion term compensation section 110 and differential term compensation section 120 from the upper limit current value computed by the feedback base section 100. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：通过尽可能地限制电源电压的降低来充分地利用电动助力转向装置的功能。 解决方案：当电源电压降低到基极电压以下时，通过调整辅助电流的上限值Ilim来进行反馈控制，以将电源电压维持在目标电压。 反馈基部100设定上限电流初始值Ilim0，并从上限电流初始值Ilim0中减去与电压偏差ΔV对应的电流补偿量。 比例项补偿部110通过将上限电流调节侧和上限电流松弛侧的控制增益Kp1和Kp2相乘来计算电流补偿量，微分项补偿部120计算电流补偿量 响应于向下侧的电压的变化和差分值的变化到预定值以上。 通过从由反馈基部100计算的上限电流值减去由比例项补偿部110和差分项补偿部120计算出的电流补偿量，得到上限电流值Ilim。（C） 2007年，日本特许厅和INPIT

公开(公告)号：JP2006112321A

公开(公告)日：2006-04-27

申请号：JP2004300472

申请日：2004-10-14

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

Inventor： MUTO HARUFUMI ,  IDO YUICHIRO

IPC: F02D45/00 ,  F02D9/02 ,  G01M99/00

CPC classification number: F02D11/105 ,  F02B2075/125 ,  F02D13/023 ,  F02D13/0238 ,  F02D41/006 ,  F02D41/187 ,  F02D2041/002 ,  F02D2200/0404 ,  Y02T10/18

Abstract: PROBLEM TO BE SOLVED: To provide a control device of an internal combustion engine capable of easily and surely detecting control abnormality, in the control device of the internal combustion engine for determining target throttle opening on the basis of a target intake quantity.
SOLUTION: This control device of the internal combustion engine determines the target throttle opening on the basis of the target intake quantity mcta. The control device of the internal combustion engine is provided for detecting the control abnormality by comparing the target intake quantity mcta with an intake quantity mcfm measured by an air flowmeter. Such a control device of the internal combustion engine can easily and surely detect the control abnormality in a process of determining the target throttle opening and controlling a throttle valve.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种能够容易且可靠地检测控制异常的内燃机的控制装置，在用于基于目标进气量确定目标节气门开度的内燃机的控制装置中。 解决方案：内燃机的该控制装置基于目标进气量mcta来确定目标节气门开度。 内燃机的控制装置被设置为通过将目标进气量mcta与由空气流量计测量的进气量mcfm进行比较来检测控制异常。 在确定目标节气门开度和控制节流阀的过程中，内燃机的这种控制装置能够容易且可靠地检测控制异常。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2006057516A

公开(公告)日：2006-03-02

申请号：JP2004239560

申请日：2004-08-19

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

Inventor： MUTO HARUFUMI ,  IDO YUICHIRO

IPC: F02D45/00 ,  F02D41/02 ,  F02D41/18

Abstract: PROBLEM TO BE SOLVED: To provide a control device for an internal combustion engine having a swirl control valve (SCV) for determining the amount of air to be filled in a cylinder during operating transition of the SCV with higher accuracy.
SOLUTION: The control device for the internal combustion engine determines the amount of air to be filled in a cylinder of the internal combustion engine having the swirl control valve (SCV) 21. When it determines the amount of air to be filled in the cylinder during operating transition of the SCV 21, the influences of burnt gas being put in or out of a space Sp of an intake port 7 ranging from the SCV 21 to an intake valve 6a on the amount of air to be filled in the cylinder are considered. Namely, when the control device determines the amount of air to be filled in the cylinder during operating transition of the SCV 21, the amount of air to be filled in the cylinder determined without considering the operation of the SCV is corrected by the amount of air equivalent to the amount of the burnt gas put in or out of the space Sp.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种具有涡流控制阀（SCV）的内燃机的控制装置，用于在SCV的操作过渡期间以更高精度确定要填充在气缸中的空气量。 解决方案：用于内燃机的控制装置确定要填充在具有涡旋控制阀（SCV）21的内燃机的气缸中的空气量。当确定要填充的空气量 在SCV21的操作过渡期间的气缸，将从SCV 21到进气门6a的进气口7的空间Sp中放入或排出的燃烧气体对于要填充在气缸中的空气量的影响 被考虑。 也就是说，当控制装置在SCV21的运转过渡期间确定要填充在气缸中的空气量时，在不考虑SCV操作的情况下确定的填充在气缸中的空气量由空气量 相当于放入或离开空间Sp的燃烧气体的量。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2005201187A

公开(公告)日：2005-07-28

申请号：JP2004009987

申请日：2004-01-19

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

Inventor： MUTO HARUFUMI ,  EBARA MASAHITO ,  IDO YUICHIRO

IPC: F02D45/00

Abstract: PROBLEM TO BE SOLVED: To accurately estimate cylinder intake air (fresh air) amount used for calculating a first-time fuel injection amount, when a fuel injection control makes the transition from a stop state to an execution state.
SOLUTION: An intake air amount control device estimates a cylinder intake air amount KLFWD passing through an intake valve and sucked into a combustion chamber in a this time's intake stroke by using various models using a predetermined physical law. In a normal case where the fuel injection control is in the execution state, the KLFWD itself is set as a this time's cylinder intake air (fresh air) amount. Besides, when the intake air amount control device estimates the cylinder intake air amount in a first-time fuel injection when the fuel injection control makes the transition from the stop state to the execution state, and if the combustion chamber is filled with air (fresh air) in closing an exhaust valve immediately before the first-time fuel injection, the intake air amount control device estimates an air amount in the combustion chamber in closing the exhaust valve from a state equation as an initial air amount Ma, and sets a value calculated by adding the Ma to the KLFWD as a cylinder intake air (fresh air) amount in the first-time fuel injection.
COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：为了精确地估计用于计算第一次燃料喷射量的汽缸进气（新鲜空气）量，当燃料喷射控制从停止状态转换到执行状态时。 解决方案：进气量控制装置通过使用预定的物理定律使用各种模型来估计通过进气门的汽缸进气量KLFWD并在该时间的进气冲程中吸入燃烧室。 在燃料喷射控制处于执行状态的正常情况下，KLFWD本身被设定为该时间的气缸进气（新鲜空气）量。 此外，当进气量控制装置在燃料喷射控制从停止状态向执行状态转变时，以及如果燃烧室充满空气（新鲜的）时，首先估计第一次燃料喷射中的汽缸进气量 空气），在第一次燃料喷射之前关闭排气门时，进气量控制装置从作为初始空气量Ma的状态方程式估计关闭排气阀的燃烧室中的空气量，并设定值 通过在首次燃料喷射中将马加到KLFWD作为气缸进气（新鲜空气）量来计算。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2005069020A

公开(公告)日：2005-03-17

申请号：JP2003208819

申请日：2003-08-26

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

Inventor： MUTO HARUFUMI ,  IDO YUICHIRO

IPC: F02D45/00 ,  F02B23/10 ,  F02B75/12 ,  F02D11/10 ,  F02D41/00

CPC classification number: F02D41/182 ,  F02B23/104 ,  F02B2075/125 ,  F02D11/106 ,  F02D41/0002 ,  F02D41/0065 ,  F02D41/2416 ,  F02D2041/001 ,  F02D2041/0015 ,  F02D2200/0402 ,  F02D2200/0404 ,  F02D2200/0408 ,  F02D2200/0414 ,  F02D2200/703

Abstract: PROBLEM TO BE SOLVED: To provide a control device of an internal combustion engine for determining throttle valve downstream side intake pipe internal pressure and a cylinder suction air flow rate in steady operation by a simpler method. SOLUTION: This control device of the internal combustion engine has a throttle valve passing air flow rate calculating expression for expressing a throttle valve passing air flow rate mt as a function of downstream side intake pipe internal pressure on the downstream side of a throttle valve, and a cylinder suction air flow rate calculating expression for expressing a cylinder suction air flow rate mc as a function of the downstream side intake pipe internal pressure. The control device is characterized by calculating the downstream side intake pipe internal pressure Pm and the cylinder suction air flow rate mc, when the throttle valve passing air flow rate mt determined from the throttle valve passing air flow rate calculating expression, coincides with the cylinder suction air flow rate mc determined from the cylinder suction air flow rate calculating expression, as downstream side intake pipe internal pressure Pmta and a cylinder suction air flow rate mcta, when steadily operated under an operation condition at that time. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种内燃机的控制装置，用于通过更简单的方法确定稳定运行中的节流阀下游侧进气管内部压力和气缸吸入空气流量。 解决方案：内燃机的该控制装置具有节流阀通过空气流量计算表达式，用于表示作为节流阀下游侧的下游侧进气管内压的函数的节流阀通过空气流量mt 阀，以及用于表示作为下游侧进气管内压的函数的气缸吸入空气流量mc的气缸吸入空气流量计算表达式。 控制装置的特征在于，当从节流阀通过空气流量计算表达式确定的节流阀通过空气流量mt与气缸吸力一致时，计算下游侧进气管内压Pm和气缸吸入空气流量mc 当气缸吸入空气流量计算表达式确定的空气流量mc作为下游侧进气管内部压力Pmta和气缸吸入空气流量mcta，当在此时的操作条件下稳定运行时。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2004156449A

公开(公告)日：2004-06-03

申请号：JP2002320059

申请日：2002-11-01

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

Inventor： MUTO HARUFUMI ,  IDO YUICHIRO

IPC: F02D11/10 ,  F02D41/14 ,  F02D45/00

Abstract: PROBLEM TO BE SOLVED: To accurately correct the error of the estimated throttle opening caused by the delay drive of a throttle valve.
SOLUTION: An electronic control unit (ECU) 30 of an engine 1 correctly estimate the air intake of the engine by setting the target opening of a throttle valve 5 according to the operation amount of an accelerator pedal, outputting the drive signal to an actuator 5a of the throttle valve after the elapse of the predetermined delay time to start the drive of the throttle valve, and looking ahead the throttle opening. The ECU performs the correction of matching the estimated value with the detected value if the difference between the present throttle opening detected by a throttle sensor 50 and the estimated throttle value in the predetermined time elapsed from the present time calculated by the look-ahead is smaller than a predetermined determination value.
COPYRIGHT: (C)2004,JPO

公开(公告)号：JP2008069790A

公开(公告)日：2008-03-27

申请号：JP2007312566

申请日：2007-12-03

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

Inventor： MUTO HARUFUMI ,  KOBAYASHI DAISUKE ,  IDO YUICHIRO

IPC: F02D45/00 ,  F02D41/18

Abstract: PROBLEM TO BE SOLVED: To provide a device for accurately calculating an air flow passing through a throttle valve even if an EGR gas is introduced into the throttle valve.
SOLUTION: This device for calculating an air flow mt passing through a throttle valve in an internal combustion engine 1 comprises an exhaust gas recirculating passage 21 for recirculating at least a part of the exhaust gas discharged from a combustion chamber to an exhaust passage into an intake passage 13; and a control valve 22 for regulating the flow of the exhaust gas passing through the exhaust gas recirculating passage. An air flow mt passing through the throttle valve is calculated according to a pressure Pm in an intake pipe, a pressure Pmegr in the intake pipe produced during stationary operation while the exhaust gas is recirculated and calculated according to the opening of the throttle valve and the opening of the control valve, and a pressure on the upstream side of the throttle valve or the atmospheric pressure Pa.
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：即使将EGR气体引入到节流阀中，也能够准确地计算通过节气门的气流的装置。 解决方案：用于计算通过内燃机1中的节流阀的空气流量的装置包括排气再循环通道21，用于将从燃烧室排出的废气的至少一部分再循环到排气通道 进入进气通道13; 以及用于调节通过排气再循环通道的废气的流动的控制阀22。 根据进气管中的压力Pm，在静止运转期间产生的进气管中的压力Pmegr，根据节流阀的开度再循环并计算废气，计算通过节流阀的气流mt 控制阀打开，节流阀上游侧的压力或大气压Pa。版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2006152848A

公开(公告)日：2006-06-15

申请号：JP2004341631

申请日：2004-11-26

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

Inventor： MUTO HARUFUMI ,  IDO YUICHIRO

IPC: F02D9/02 ,  F02D41/14

CPC classification number: F02D41/32 ,  F02D11/105 ,  F02D41/0002 ,  F02D41/18 ,  F02D2041/1434 ,  F02D2200/0402 ,  F02D2200/0408 ,  Y02T10/42

Abstract: PROBLEM TO BE SOLVED: To prevent the durability of a throttle valve and a throttle valve drive means from being lowered by preventing hunching from occurring in a throttle opening when an engine is operated in a steady state.
SOLUTION: A target engine load factor KLT is calculated. A target throttle opening θtT necessary for changing an actual engine load factor KL to the target engine load factor KLT is calculated based on an intake pipe pressure which is a pressure in an intake passage on the downstream side of the throttle valve. A convergent throttle opening θtCV which is a throttle opening to converge when the target engine load factor KLT is assumed to be held at the calculated KLT is calculated. In the transient operation of the engine, the target throttle opening θtT is set to a final target throttle opening θtTf, and in the steady operation of the engine, the convergent throttle opening θtCV is set to the target throttle opening θtTf. Next, the throttle valve is driven so that the actual throttle opening θt matches the final target throttle opening θtTf.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：为了防止节气门和节气门驱动装置的耐久性在发动机在稳定状态下操作时通过防止在节气门开口中发生的砰击而降低。

解决方案：计算目标发动机负载系数KLT。 基于作为节流阀的下游侧的进气通路中的压力的​​进气管压力来计算将实际发动机负荷因子KL变更为目标发动机负荷系数KLT所需的目标节气门开度θtT。 计算当目标发动机负荷因子KLT被保持在计算的KLT时作为节气门开度会聚的会聚节气门开度θtCV。 在发动机的瞬时动作中，将目标节气门开度θtT设定为最终的目标节气门开度θtTf，在发动机的稳定运转中，将会聚节气门开度θtCV设定为目标节气门开度θtTf。 接下来，驱动节流阀使得实际节气门开度θt与最终目标节气门开度θtTf匹配。 版权所有（C）2006，JPO＆NCIPI