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公开(公告)号：JP2005155335A
公开(公告)日：2005-06-16
申请号：JP2003390891
申请日：2003-11-20
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： KUSADA MASAKI , KANEKO SATOSHI , ABE TSUKASA , SUZUKI NAOTO , ITAGAKI KENJI , ANDO IKUO , ANDO DAIGO , HASEGAWA KEIKO
Abstract: PROBLEM TO BE SOLVED: To enable accurate learning of atmospheric pressure without using an atmospheric pressure sensor, in regard to an atmospheric pressure learning device mounted on an automobile having an evaporation fuel treatment system for combustion treatment in an internal combustion engine and an abnormality diagnostic device. SOLUTION: A selector valve 152 for making a canister 46 communicated/shielded with/from the atmosphere is provided on an atmospheric pressure side passage 144c connected to the canister 146. A pressure sensor 154 is mounted inside the passage in the canister 146 side from the selector valve 152, and a pump 156 is arranged so as to introduce negative pressure into inside of the passage. Abnormalities such as fuel leakage are detected, based on a pressure value from the pressure sensor 154 when the pump 156 is driven by closing a solenoid valve 142 for sealing and a solenoid valve 148 for purging and by switching the selector valve 152 to a state where the passage in the canister 146 side is shielded from the atmosphere. When the selector valve 152 is switched to a state where the passage in the canister 146 side communicates with the atmosphere, learning of the atmospheric pressure is performed by using the pressure value from the pressure sensor 154. Accordingly, the learning of the atmospheric pressure can be performed accurately without using an atmospheric pressure sensor. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract translation: 要解决的问题：为了能够在不使用大气压力传感器的情况下准确地学习大气压力，关于安装在具有内燃机中的燃烧处理用蒸发燃料处理系统的汽车上的大气压学习装置，以及 异常诊断装置 解决方案：用于使罐46与大气连通/屏蔽的选择阀152设置在与罐146连接的大气压侧通道144c上。压力传感器154安装在罐146内的通道内 并且设置泵156，以将负压引入通道的内部。 基于来自压力传感器154的压力值，当通过关闭用于密封的电磁阀142以及用于清洗的电磁阀148来驱动泵156时，检测到燃料泄漏等异常，并且通过将选择阀152切换到 罐146侧的通道与大气隔绝。 当切换阀152切换到罐146侧的通道与大气连通的状态时，通过使用来自压力传感器154的压力值来进行大气压力的学习。因此，大气压的学习可以 在不使用大气压力传感器的情况下准确执行。 版权所有（C）2005，JPO＆NCIPI
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公开(公告)号：JP2005124282A
公开(公告)日：2005-05-12
申请号：JP2003355110
申请日：2003-10-15
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： KANEKO SATOSHI , ABE TSUKASA , KUSADA MASAKI , SUZUKI NAOTO , ITAGAKI KENJI , ANDO IKUO , ANDO DAIGO , HASEGAWA KEIKO
IPC: B60W20/00 , B60K6/445 , B60K6/448 , B60K6/52 , B60L11/14 , B60W10/00 , B60W10/06 , B60W10/08 , F02D29/02 , F02D41/04 , F02D45/00 , B60K6/04
CPC classification number: Y02T10/6286 , Y02T10/7077
Abstract: PROBLEM TO BE SOLVED: To increase/decrease the power outputted from an engine more quickly when a sports drive mode is set by a driver. SOLUTION: When a sports drive mode is set, a lower limit engine rotational speed Nemin which is the lower limit of rotational speed of an engine is acquired according to a vehicle speed using a lower limit engine rotational speed map (step S160), and an engine rotational speed command Ne* is set so that the rotational speed of the engine is higher than the lower limit engine rotational speed Nemin (steps S170, S180). Thus, the engine is operated at the lower limit engine rotational speed Nemin or higher, to widen the torque width which an engine can decrease or increase, for quick increase/decrease of a torque. As a result, the power outputted from the engine is quickly increased or decreased. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract translation: 要解决的问题：当驾驶员设定运动驾驶模式时，更快速地增加/减少从发动机输出的动力。 解决方案：当设置运动驾驶模式时，使用下限发动机转速图根据车速获取作为发动机转速下限的下限发动机转速Nemin（步骤S160） 并且发动机转速指令Ne *被设定为使得发动机的转速高于下限发动机转速Nemin（步骤S170，S180）。 因此，发动机以下限发动机转速Nemin以上运转，以加宽发动机可以减小或增加的扭矩宽度，以便快速增减转矩。 结果，从发动机输出的动力快速增加或减小。 版权所有（C）2005，JPO＆NCIPI
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13.发明专利
公开(公告)号：JP2004360672A
公开(公告)日：2004-12-24
申请号：JP2003370513
申请日：2003-10-30
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： KIMURA AKIHIRO , ANDO DAIGO , HARADA OSAMU , ICHIMOTO KAZUHIRO , KAIDA KEIJI , ABE SHINICHI , SUZUKI TAKASHI , ITAGAKI KENJI , KANEKO SATOSHI , ABE TSUKASA , KUSADA MASAKI , SUZUKI NAOTO , ANDO IKUO , HASEGAWA KEIKO
IPC: B60W20/00 , B60K6/445 , B60K6/448 , B60K6/52 , B60L11/14 , B60W10/06 , B60W10/08 , B60W10/26 , F02D13/02 , F02D21/08 , F02D29/02 , B60K6/04
CPC classification number: Y02T10/6286 , Y02T10/7077
Abstract: PROBLEM TO BE SOLVED: To improve energy efficiency of an apparatus by operating an internal combustion engine provided in a power output apparatus corresponding to states of the power output apparatus. SOLUTION: This hybrid vehicle, which torque-converts the power from the engine with an epicyclic gear mechanism and two motors connected with a rotating element of the epicyclic gear mechanism and outputs the torque-converted value to a driving shaft connected with a driving wheel, stores a plurality of different operation lines LP, L0 to L3 with a constraint of different conditions for power outputted from the engine, and operates the engine and controls driving of the two motors by establishing the operation lines corresponding to a vehicle speed and motor conditions, thus improving energy efficiency of a vehicle and accommodating the output limit of an apparatus such as a motor. COPYRIGHT: (C)2005,JPO&NCIPI
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公开(公告)号：JP2003293827A
公开(公告)日：2003-10-15
申请号：JP2002101663
申请日：2002-04-03
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： KUSADA MASAKI
IPC: B60K6/20 , B60K6/445 , B60W10/06 , B60W20/00 , F02D13/02 , F02D29/02 , F02D41/04 , F02D41/06 , F02D45/00 , F02M33/04 , F02N15/00 , B60K6/04
CPC classification number: Y02T10/6239
Abstract: PROBLEM TO BE SOLVED: To provide a start controller for an internal combustion engine further improving discharging performance in starting. SOLUTION: Idling operation of stopping fuel injection from an injector 13 is carried out in starting of the engine 1, and the engine is started by starting the fuel injection after an engine state satisfies a predetermined condition. An ECU 9 determines whether or not a discharge amount of fuel adhered to an intake pipe 10 or the like at starting and discharged via the engine by the idling operation is a predetermined value or more, and if it determines that the discharge amount is the predetermined value or more, it starts the engine by starting the fuel injection when an engine speed reaches a predetermined speed even when the predetermined condition is not satisfied. COPYRIGHT: (C)2004,JPO
Abstract translation: 要解决的问题：提供一种用于内燃机的起动控制器，其进一步改善启动时的排放性能。 解决方案：在发动机1的启动中进行停止从喷射器13的燃料喷射的怠速运转，并且在发动机状态满足预定条件之后通过启动燃料喷射来启动发动机。 ECU9判断通过怠速运转经由发动机起动和排出的吸入管10等附着的燃料的排出量是否为规定值以上，如果判断为排出量为预定值 值以上时，即使在不满足预定条件的情况下，当发动机速度达到预定速度时，通过启动燃料喷射来启动发动机。 版权所有（C）2004，JPO
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公开(公告)号：JP2000199425A
公开(公告)日：2000-07-18
申请号：JP37445598
申请日：1998-12-28
Applicant: TOYOTA MOTOR CORP
Inventor： KUSADA MASAKI , HIROSE KATSUHIKO , KANAI HIROSHI , TAKAOKA TOSHIBUMI , INOUE TOSHIO , NISHIGAKI TAKAHIRO , KOJIMA MASAKIYO
IPC: F02D45/00 , B60K6/20 , B60K6/24 , B60K6/445 , B60W10/06 , B60W10/26 , B60W20/00 , F01N3/20 , F01N11/00 , F02B3/06 , F02D41/04 , F02D41/22
Abstract: PROBLEM TO BE SOLVED: To provide a highly accurate catalyst deterioration detecting apparatus for hybrid automobiles. SOLUTION: This catalyst deterioration detecting apparatus comprises a catalyst 15 provided in an exhaust manifold 6 of an engine, an air-fuel ratio sensor 32 disposed downstream of the catalyst 15, an electric motor MG2 coupled to the output shaft of the engine, and a control means 40 for temporarily stopping the engine under a predetermined running condition as well as driving the electric motor MG2. Further, this apparatus also comprises oxygen amount estimation means 40 for estimating the oxygen amount stored in the catalyst 15, and deterioration judging means 40 for judging deterioration of the catalyst 32 from the output of the air-fuel ratio sensor 32 after resuming the drive of the engine and the oxygen amount estimated by the oxygen amount estimation means 40.
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Patent Agency Ranking
公开(公告)号：JPH11294144A
公开(公告)日：1999-10-26
申请号：JP9756298
申请日：1998-04-09
Applicant: TOYOTA MOTOR CORP
Inventor： IWASAKI EIJI , TANAKA TOSHIAKI , HIROTA SHINYA , OHASHI NOBUMOTO , ITO KAZUHIRO , YOSHIZAKI KOJI , KUSADA MASAKI
Abstract: PROBLEM TO BE SOLVED: To reduce a generation amount of soot and also reduce combustible HC, CO, NOx to minimum discharged to the atmosphere. SOLUTION: In a first combustion state, a recirculation exhaust amount supplied into a combustion chamber 5 exceeds the value where a soot generation amount shows a peak, and soot is hardly generated. In a second combustion state, the recirculation exhaust amount supplied into the combustion chamber 5 is less than the value where the soot generation amount shows the peak. The first combustion and the second combustion is selectively changed over. A selective reduction catalyst 19 is arranged in a passage of an internal combustion engine for oxidizing hydrocarbon and reducing NOx under the presence that excessive oxygen and hydrocarbon.
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公开(公告)号：JP2002047926A
公开(公告)日：2002-02-15
申请号：JP2000232008
申请日：2000-07-31
Applicant: TOYOTA MOTOR CORP
Inventor： KUSADA MASAKI , TAKAOKA TOSHIBUMI , INOUE TOSHIO , SUZUKI NAOTO
Abstract: PROBLEM TO BE SOLVED: To perform continuity of exhaust gas for HC desorption to an HC adsorbing material layer when starting an engine in an engine warming-up state. SOLUTION: This device is provided with an exhaust system including an HC adsorbing material layer and an exhaust gas purifying catalyst layer having an oxygen holding function. By passing the exhaust gas through the HC adsorbing material layer when starting a cold temperature of the engine, the HC absorbing material layer is made to adsorb HC in the exhaust gas. By passing exhaust gas through the HC adsorbing material layer after warming-up of the engine and the exhaust system, HC adsorbed by the HC adsorbing material layer is desorbed. An HC eliminating operation for the engine exhaust device for a wheel for discharging the desorbed HC by being converted into H2O and CO2 by oxygen held in the exhaust gas purifying catalyst layer is ensured and generation of NOx is suppressed by the exhaust gas purifying catalyst layer when starting the engine after warming-up of the engine.
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18.发明专利
公开(公告)号：JP2002303129A
公开(公告)日：2002-10-18
申请号：JP2001108448
申请日：2001-04-06
Applicant: TOYOTA MOTOR CORP
Inventor： KUSADA MASAKI
Abstract: PROBLEM TO BE SOLVED: To further improve an atmospheric environment conservation characteristic by suppressing exhaustion of hazardous gas components following temporary stop and restart of an engine in an economy running car or a hybrid car. SOLUTION: A vehicle has an exhaust purifying catalyst having a function for reserving oxygen in an exhaust system of an internal combustion engine, temporarily stops the engine when a predetermined temporary stop condition of the engine is satisfied, and temporarily increases fuel for reduction treatment of the exhaust purifying catalyst in restarting the engine. When the reserved oxygen amount of the exhaust purifying catalyst in restarting the engine is not estimated to be within a predetermined range in a fuel cut-off operation, a fuel increasing operation, or the like, fuel increase in the reduction treatment of the catalyst is inaccurate and hazardous gas components may be exhausted in restarting the engine, so that the temporary stop of the engine is prohibited.
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公开(公告)号：JP2000199420A
公开(公告)日：2000-07-18
申请号：JP37338598
申请日：1998-12-28
Applicant: TOYOTA MOTOR CORP
Inventor： KUSADA MASAKI , HIROSE KATSUHIKO , KANAI HIROSHI , TAKAOKA TOSHIBUMI , INOUE TOSHIO , NISHIGAKI TAKAHIRO , KOJIMA MASAKIYO
IPC: F01M11/10 , B60K6/20 , B60K6/445 , B60K8/00 , B60W10/06 , B60W10/08 , B60W20/00 , F02D17/00 , F02D29/02 , F02D45/00
Abstract: PROBLEM TO BE SOLVED: To accurately detect deterioration of engine related parts for a hybrid car. SOLUTION: This deterioration detection system comprises motors MG1, MG2 connected to the output shaft of an engine and a control device 180 which temporarily stops or runs the engine 100 under a predetermined driving condition and also controls the actuation of the motors MG1, MG2. The deterioration detection system further comprises an engine operating time counting device to count an engine operating time from a combustion operating time when a driving force generated by engine combustion energy is transmitted to an output shaft and a non-combustion operating time when the engine is not running and as a result no force is transmitted from the engine to the output shaft. The system is further equipped with a deterioration determination device to determine deterioration of engine related parts based on the engine operating times.
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公开(公告)号：JP2000186591A
公开(公告)日：2000-07-04
申请号：JP36517598
申请日：1998-12-22
Applicant: TOYOTA MOTOR CORP
Inventor： NISHIGAKI TAKAHIRO , HIROSE KATSUHIKO , KANAI HIROSHI , TAKAOKA TOSHIBUMI , INOUE TOSHIO , KUSADA MASAKI , SUZUKI TAKASHI , YAMAZAKI MAKOTO
IPC: F02P17/12 , B60K6/20 , B60K6/445 , B60K8/00 , B60W10/06 , B60W10/08 , B60W20/00 , F02D29/02 , F02D29/06 , F02D45/00
Abstract: PROBLEM TO BE SOLVED: To prevent wrong determination of a misfire or the like according to the ion current detection result by limiting the combustion state determination of an internal combustion engine based on an ion current according to the current flowing through a motor and a motor control device of a hybrid vehicle. SOLUTION: An electric control unit(ECU) 40 reads a voltage value of an ignition plug 16 part generated by an ion current, and compares the read value with a designated value to conduct the required control operation when a misfire is determined. In the ion current detecting device of a hybrid vehicle, when a large current flows through a motor, noise is generated to have a bad influence to the ion current to cause wrong determination of a misfire. When a misfire determination limiting routine is executed, the noise present is determined when the detection values Im of currents of motors MG1, MG2 are larger than a designated amount, when the change rate (dIm/dt) of the detected current value is larger than a designated value, or when a regenerative control current Irm flows. Thus, it is possibe to prevent wrong determination of the engine combustion state according to the detection of an ion current influenced by noise.
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