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41. 发明专利

JP2008303831A Control device of internal combustion engine 有权
标题翻译：内燃机控制装置
公开(公告)号：JP2008303831A
公开(公告)日：2008-12-18
申请号：JP2007152983
申请日：2007-06-08
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： TOMIMATSU AKIRA , HOSHI KOICHI , SUDA SHOGO
IPC分类号： F02D13/02 , F02D41/12 , F02D45/00 , F02P5/15
CPC分类号： Y02T10/47
摘要： PROBLEM TO BE SOLVED: To provide a control device for preventing the occurrence of a large torque variation in speed reduction operation of an internal combustion engine by the performance of exhaust early closing control.
SOLUTION: This internal combustion engine has a fuel injection valve 13 injecting fuel into an intake port 8, and an exhaust variable valve timing mechanism A capable of changing the valve timing of an exhaust valve 9. The control device performs the exhaust early closing control for advancing the valve closing timing of the exhaust valve when an exhaust early closing control performing condition is realized. The control device also has a torque detecting means for detecting output torque outputted by an engine body 1, and prohibits the performance of the exhaust early closing control when predicting that the output torque detected by the torque detecting means becomes smaller than limit torque even when the exhaust early closing control performing condition is realized in the speed reduction operation of the internal combustion engine.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种控制装置，用于通过执行排气早闭控制来防止内燃机的减速操作发生大的扭矩变化。解决方案：该内燃机具有将燃料喷射到进气口8中的燃料喷射阀13和能够改变排气阀9的气门正时的排气可变气门正时机构A.控制装置提前排气在实现排气提前关闭控制执行条件的情况下，使排气门的关闭正时提前的关闭控制。控制装置还具有用于检测发动机主体1输出的输出转矩的转矩检测装置，并且当预测到由转矩检测装置检测到的输出转矩变得小于限制转矩时，即使在在内燃机的减速操作中实现排气早期关闭控制执行状态。版权所有（C）2009，JPO＆INPIT

42. 发明专利

JP2008223588A Control device for hydraulic vvt (variable valve timing: vvt) 审中-公开
标题翻译：液压VVT控制装置（可变阀时序：VVT）
公开(公告)号：JP2008223588A
公开(公告)日：2008-09-25
申请号：JP2007062819
申请日：2007-03-13
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： TOMIMATSU AKIRA
IPC分类号： F02D13/02
CPC分类号： Y02T10/18
摘要： PROBLEM TO BE SOLVED: To improve controllability of a hydraulic VVT by accurately predicting an oil temperature even in a cold start.
SOLUTION: The control device for a hydraulic VVT is a control device for controlling hydraulic VVTs 63a, 63b which can be operated by working fluid. This device comprises: a drive means 80 driving the hydraulic VVT by applying a pulse signal of predetermined amplitude T3; and specification means 41, 42a, 42b, 80 specifying at least one of an actual measurement values Δt1, Δt2 of delay in response and actual measurement values Δk1, Δk2 of response speed when the hydraulic VVT responds to the first initial motion pulse signal of the given pulse signals. The control device further comprises an estimation means 80 estimating the oil temperature of the working fluid based on correlation between the specified at least one of the measurement values and the oil temperature of working fluid.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：即使在冷启动时，通过精确地预测油温来提高液压VVT的可控性。解决方案：用于液压VVT的控制装置是用于控制可由工作流体操作的液压VVT 63a，63b的控制装置。该装置包括：驱动装置80，通过施加预定振幅T3的脉冲信号来驱动液压VVT; 以及指定装置41，42a，42b，80，其指定当液压VVT响应于第一初始运动脉冲信号时的响应速度的实际测量值Δt1，Δt2和响应速度的实际测量值Δk1，Δk2中的至少一个给定脉冲信号。控制装置还包括基于指定的至少一个测量值和工作流体的油温之间的相关性来估计工作流体的油温的估计装置80。版权所有（C）2008，JPO＆INPIT

43. 发明专利

JP2008215318A Control device for internal combustion engine 有权
标题翻译：内燃机控制装置
公开(公告)号：JP2008215318A
公开(公告)日：2008-09-18
申请号：JP2007057792
申请日：2007-03-07
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： HOSHI KOICHI , SUDA SHOGO , TOMIMATSU AKIRA , SUZUKI YOSHIHIKO , FUKUMOTO MAKOTO
IPC分类号： F02D13/02 , F02D45/00
CPC分类号： F02D13/0203 , F01L1/34 , F01L2001/0537 , F01L2800/01 , F02D41/064 , F02D41/1446 , F02D41/1494 , Y02T10/18
摘要： PROBLEM TO BE SOLVED: To provide a technology enabling elimination of scatter of water drops in the exhaust passage during start at an early stage, and improvement of emission in start of an internal combustion engine by advancing heating start timing of the air fuel ratio sensor in an internal combustion engine provided with an air fuel sensor capable of detecting air fuel ratio under a condition where the same is arranged in an exhaust passage and is heated.
SOLUTION: On/off timing of an exhaust valve is set to start on/off timing in an advanced side of standard on/off timing which is a standard of on/off timing of the exhaust valve after completion of warming up during start of the internal combustion engine. The condition is continued (S103) until wall surface temperature Tssr of an exhaust passage near the air fuel ratio sensor gets to water drop elimination temperature Tw at which water drops are eliminated, or higher. After that, change of on/off timing of the exhaust valve corresponding to an operation condition by a variable valve gear is started (S104).
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够在早期开始时消除排气通道中的水滴散射的技术，并且通过提高空气燃料的加热开始时间来改善内燃机的启动中的排放具有能够在排气通道中配置并被加热的条件下能够检测空燃比的空燃媒体的内燃机中的比率传感器。解决方案：排气阀的开/关定时被设定为在标准开/关定时的前进侧开始开/关定时，其是在完成预热之后的排气阀的开/关定时的标准启动内燃机。继续进行条件（S103），直到靠近空燃比传感器的排气通道的壁面温度Tssr达到去除水滴的水滴消除温度Tw或更高。之后，开始与可变气门齿轮对应的运转状态的排气阀的开/关定时的变更（S104）。版权所有（C）2008，JPO＆INPIT

44. 发明专利

JP2006322827A GAS LEAKAGE DETECTOR 审中-公开
公开(公告)号：JP2006322827A
公开(公告)日：2006-11-30
申请号：JP2005146660
申请日：2005-05-19
申请人： TOYOTA MOTOR CORP
发明人： TOMIMATSU AKIRA , HOSHI KOICHI , YAGIHASHI MASAO , SAKURAI KENJI
IPC分类号： G01M3/16 , F01N13/00 , F01N99/00 , G01M3/00
摘要： PROBLEM TO BE SOLVED: To surely and efficiently detect a gas leakage from an exhaust pipe. SOLUTION: A gas leakage detection unit 300 is equipped with a flange 330 and a gasket 340 provided on a joint part between an engine head 200a and the exhaust pipe 210. Part of the flange 330 confronts part of the gasket 340 with a space in between. Meanwhile, a prescribed voltage is placed between the flange 330 and the gasket 340 by a power supply 310. If gas leaks from such a joint part, the flange 330 and the gasket 340 become conductive owing to ions included in a leak gas 11 to cause an ion current to flow through a closed circuit, thus changing a terminal voltage of a terminal 360 for detection. An output of this terminal 360 is inputted into an ECU 100. The ECU 100 detects a gas leak based on the terminal voltage in the process of executing a gas leak detection process. COPYRIGHT: (C)2007,JPO&INPIT

45. 发明专利

JP2006322389A CATALYST DEGRADING PREVENTION DEVICE 审中-公开
公开(公告)号：JP2006322389A
公开(公告)日：2006-11-30
申请号：JP2005146663
申请日：2005-05-19
申请人： TOYOTA MOTOR CORP
发明人： TOMIMATSU AKIRA , YAGIHASHI MASAO
IPC分类号： F02D45/00 , F01N3/24 , F02D41/04 , F02D41/12 , F02D41/14 , G01N27/26 , G01N27/41
摘要： PROBLEM TO BE SOLVED: To effectively prevent a catalyst layer in an air-fuel ratio sensor from being degraded. SOLUTION: The air-fuel ratio sensor 221 comprises a sensor element 221a, the catalyst layer 221f, and a heater 221g. The heater 221g is so formed that an energization amount is duty-controlled by an ECU 100. When requirements for performing fuel cut are satisfied, the ECU 100 determines whether or not the temperature of the sensor element 221a is higher than the degrading start temperature of the catalyst layer 221f. When the temperature of the sensor element is higher than the degrading start temperature, it controls the energization amount to the heater 221g so that the temperature of the sensor element 221a can be lowered to a predetermined lower limit temperature. When the temperature of the sensor element 221a is lowered to less than the degrading start temperature by the control, the ECU 100 performs the fuel cut. COPYRIGHT: (C)2007,JPO&INPIT

46. 发明专利

JP2006322388A DIAGNOSTIC DEVICE OF INTERNAL COMBUSTION ENGINE 审中-公开
公开(公告)号：JP2006322388A
公开(公告)日：2006-11-30
申请号：JP2005146658
申请日：2005-05-19
申请人： TOYOTA MOTOR CORP
发明人： TOMIMATSU AKIRA , HOSHI KOICHI , YAGIHASHI MASAO , SAKURAI KENJI
IPC分类号： F02D45/00
摘要： PROBLEM TO BE SOLVED: To provide a diagnostic device of an internal combustion engine capable of efficiently diagnosing the state of air flow of the internal combustion engine. SOLUTION: In an engine system 10, an ECU 100 performs an air flow state diagnosing treatment. In the air flow state diagnosing treatment, an intake stroke workload Wi and an exhaust stroke workload Wo in the engine 200 are calculated based on the output value of a cylinder pressure sensor 211. The intake stroke workload Wi and the exhaust stroke workload Wo are closely related to the air flow states of an intake system and an exhaust system. When these air flow states are abnormal, these values change. When the intake stroke workload Wi is larger than an upper limit value, the ECU 100 diagnoses that leak occurs in an intake pipe 206, and when the intake stroke workload Wi is less than a lower limit value, it diagnoses that clogging occurs in an air filter 206. Further, when the exhaust stroke workload Wo is larger than a reference value, it diagnoses that leak occurs in an exhaust pipe 209. COPYRIGHT: (C)2007,JPO&INPIT

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