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1. 发明专利

JPH05288123A 失效
公开(公告)号：JPH05288123A
公开(公告)日：1993-11-02
申请号：JP11667292
申请日：1992-04-10
申请人： TOYOTA MOTOR CORP , NIPPON DENSO CO
发明人： NAKADA KUNIHIKO , YOSHIOKA MAMORU , IDE SHUNICHI , YOSHIYAMA SHIGERU
IPC分类号： F02D45/00 , F01N13/02 , F02B37/007 , F02D23/00 , F02M25/07
摘要： PURPOSE:To reliably prevent the occurrence of an engine stall due to excessive EGR gas and enhance the EGR gas cut characteristics even in case an EGR valve control solenoid valve falls in a failure while being kept opened. CONSTITUTION:A negative pressure port 91a of an EGR valve modulator 91 communicated with a diaphragm chamber of an EGR valve 84 is connected to a suction passage downstream of a throttle valve 4 via a vacuum switching valve 101 consisting of a two-way solenoid valve subjected to duty control. A channel 89 between the vacuum switching valve 101 and the EGR valve modulator 91 is communicated with an atmosphere side via a throttling part 102.

2. 发明专利

JP2007211598A Air-fuel ratio control device of internal combustion engine 有权
标题翻译：内燃机空燃比控制装置
公开(公告)号：JP2007211598A
公开(公告)日：2007-08-23
申请号：JP2006029535
申请日：2006-02-07
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： MIZOGUCHI HIROAKI , FUJIWARA TAKAHIKO , NAKADA KUNIHIKO , SAKURAI KENJI , ICHINOSE HIROKI , KAWAI MASAAKI , HIRATA ATSUSATO
IPC分类号： F02D41/06 , F01N3/20 , F01N3/24 , F02D45/00
CPC分类号： F01N3/24 , F01N3/101 , F01N3/2006 , F01N2340/00 , F01N2430/06 , F01N2560/06 , F01N2560/14 , F02D41/0245 , F02D41/025 , F02D41/0255 , F02D2200/0802 , Y02T10/22 , Y02T10/26
摘要： PROBLEM TO BE SOLVED: To provide an air-fuel ratio control device of an internal combustion engine capable of reducing the discharged amount of NOx into the atmosphere when heating a three-way conversion catalyst device quickly to a catalyst activation temperature immediately after starting the engine.
SOLUTION: During the start of the engine, the combustion air-fuel ratio is set leaner than the theoretical air-fuel ratio (time t1). When only the exhaust upstream part of the three-way conversion catalyst device disposed in an engine exhaust system is determined to be heated to the catalyst activation temperature (time t2), the combustion air-fuel ratio is set richer than the theoretical air-fuel ratio to increase the temperature of the exhaust downstream part of the three-way conversion catalyst device.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种内燃机的空燃比控制装置，其能够在立即将三通转化催化剂装置快速加热到催化剂活化温度时将NOx的排出量减少到大气中启动发动机。解决方案：在发动机启动期间，燃烧空燃比设定为比理论空燃比（时间t1）更稀。当仅排放在发动机排气系统中的三元转化催化剂装置的排气上游部分被确定为加热到催化剂活化温度（时间t2）时，燃烧空燃比被设定为比理论空气燃料比率来提高三元转化催化剂装置的排气下游部分的温度。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2007107495A Exhaust emission control device for internal combustion engine 审中-公开
标题翻译：用于内燃机的排气排放控制装置
公开(公告)号：JP2007107495A
公开(公告)日：2007-04-26
申请号：JP2005301596
申请日：2005-10-17
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： NAKADA KUNIHIKO
IPC分类号： F01N3/24 , B01D53/86 , B01D53/94 , B01J38/00
摘要： PROBLEM TO BE SOLVED: To provide an exhaust emission control device for an internal combustion engine which is hardly influenced by the deterioration of an exhaust purifying catalyst easily even at a time of cold start of the internal combustion engine, and keeping exhaust emission control performance high. SOLUTION: This exhaust emission control device is provided with the exhaust purifying catalyst 20 arranged in an engine exhaust passage, and exhaust gas flows in the exhaust purifying catalyst from an upstream side end part and flows out of the same from a downstream side end part. Moreover, the exhaust emission control device is provided with a grinding means 30 grinding the upstream side end part of the exhaust purifying catalyst by moving on the upstream side end part of the exhaust purifying catalyst dyeing operation of the internal combustion engine. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：即使在内燃机的冷起动时，也容易提供即使在内燃机的冷启动时也容易受到排气净化催化剂的劣化的影响的内燃机的排气排放控制装置，并且保持废气排放控制性能高。解决方案：该废气排放控制装置设置有布置在发动机排气通道中的排气净化催化剂20，排气从上游侧端部流入排气净化催化剂，并从排气净化催化剂20的下游侧流出结束部分。此外，废气排放控制装置设置有研磨装置30，其通过在内燃机的排气净化催化剂染色操作的上游侧端部移动来研磨排气净化催化剂的上游侧端部。版权所有（C）2007，JPO＆INPIT

4. 发明专利

JPH1150893A CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH1150893A
公开(公告)日：1999-02-23
申请号：JP20685597
申请日：1997-07-31
申请人： TOYOTA MOTOR CORP
发明人： KANAMARU MASANOBU , NAKADA KUNIHIKO , IRISAWA YASUYUKI , ATSUMI YOSHIAKI
IPC分类号： F02P5/15 , F02D41/06 , F02D41/08 , F02D41/16 , F02D41/34 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To stabilize an idle immediately after starting so as to prevent emission from deteriorating by improving the instability of combustion at the start of engine under a cold condition. SOLUTION: In the control device of an internal combustion engine which is provided with a counter for counting a collapsed time after the start of an engine, a sensor for detecting the speed of the engine, and a control circuit for controlling the timing of fuel injection into the engine, an intake synchronous injection is performed only for a first specified times (a), during cold condition immediately after engine start, and an intake non-synchronous injection is performed after the first specified time (a) has been passed. During the intake non-synchronous injection, it is monitored whether an engine speed NE is lowered less than a reference speed (f) or not until a second specified time (d) has been passed. When the engine speed NE is lowered less than the reference speed (f), the intake synchronous injection is performed temporarily so as to increase engine speed for idle stabilization.

5. 发明专利

JPH05222946A CONTROLLER OF ENGINE WITH SUPERCHARGER 失效
公开(公告)号：JPH05222946A
公开(公告)日：1993-08-31
申请号：JP5915092
申请日：1992-02-14
申请人： TOYOTA MOTOR CORP
发明人： YOSHIOKA MAMORU , NAKADA KUNIHIKO
IPC分类号： F02B37/007 , F02B37/00
摘要： PURPOSE:To prevent the worsening of a start acceleration performance from idling and prevent the generation of the chattering sound of an exhaust changeover valve at the time of deceleration by providing a valve opening command means to output a command that opens the exhaust changeover valve even in the case where a supercharging action condition by means of a main turbo charger alone is established, when a deceleration state is detected. CONSTITUTION:A deceleration detecting means 71 and a valve opening command means 72 are formed in an engine control computer, and constitution is made by a program to be housed in the computer. A valve opening command for an exhaust changeover valve 17 is outputted by means of the valve opening command means 72 only in a case in which a deceleration state is detected by means of the deceleration detecting means 71. As a result, the exhaust changeover valve 17 is opened at the time of idling, and the decrease of the rotation of a main turbo charger at the time of idling is prevented. Accordingly, even in the case where acceleration is conducted from the idling state, the rotation of the main turbo charger can be increased in a short time.

6. 发明专利

JPH05214945A CONTROL DEVICE FOR ENGINE WITH SUPERCHARGER 失效
公开(公告)号：JPH05214945A
公开(公告)日：1993-08-24
申请号：JP4777392
申请日：1992-02-05
申请人： TOYOTA MOTOR CORP
发明人： YOSHIOKA MAMORU , NAKADA KUNIHIKO
IPC分类号： F02B37/007 , F02B37/00
摘要： PURPOSE:To prevent unreliable operations of both intake and exhaust selector valves by switching the operation to the supercharged operation by only a main turbo-charger when the pressure in an accumulating tank becomes lower than a preset value even if the supercharged operation conditions of both the main and auxiliary turbo-chargers are met. CONSTITUTION:In the low intake air quantity area, both an intake selector valve 18 and an exhaust selector valve 17 are closed, and the supercharged operation by only a main turbo-charger is performed. In the high intake air quantity area, actuators 11, 16 are driven by the pressure feed from an accumulating tank, both the intake selector valve 18 and exhaust selector valve 17 are closed, and the supercharged operation by both the main and auxiliary turbo-chargers is performed. The pressure in the accumulating tank is detected by a pressure detecting means 7. When the pressure in the accumulating tank becomes lower than a preset value, a switching judging means 72 commands to switch the operation to the supercharged operation by only the main turbo- charger even if the operating conditions of both the main and auxiliary turbo- chargers are met.

7. 发明专利

JPH05163954A DECELERATING AIR BYPASS VALVE CONTROLLER OF ENGINE WITH SUPERCHARGER 失效
公开(公告)号：JPH05163954A
公开(公告)日：1993-06-29
申请号：JP35298591
申请日：1991-12-17
申请人： TOYOTA MOTOR CORP
发明人： YOSHIOKA MAMORU , NAKADA KUNIHIKO
IPC分类号： F02B37/16 , F02B37/00
摘要： PURPOSE:To suppress torque shock due to abrupt closing of an air bypass valve at the time of acceleration, and to prevent an air fuel ratio being rich at the time of acceleration or being lead at the time of deceleration. CONSTITUTION:A pressure retardation valve 71 for retarding transmission of supercharging pressure into a diaphragm chamber 62b, is provided on a sensing route 63 for guiding the pressure of an intake route 14 of the downstream of a throttle valve to the diaphragm chamber 62b of an air bypass valve 62, and the air bypass valve 62 is opened slowly at the time of acceleration.

8. 发明专利

JPH0533663A SUPERCHARGING PRESSURE CONTROLLER OF ENGINE-CUM-SUPERCHARGER 失效
公开(公告)号：JPH0533663A
公开(公告)日：1993-02-09
申请号：JP20618391
申请日：1991-07-24
申请人： TOYOTA MOTOR CORP
发明人： YOSHIOKA MAMORU , NAKADA KUNIHIKO
IPC分类号： F02B37/007 , F02B37/00 , F02B37/12 , F02B37/18
摘要： PURPOSE:To thin the wall thickness in an impeller by restraining a temperature in a compressor of a sub-turbocharger from going up so sharply even such a accelerating driving as running on an ascent continues long. CONSTITUTION:Cumulative time of cooling time being measured by a cooling time measuring means 62 is subtracted from the cumulative time of coasting time being measured by a coasting time measuring means 61, and thereby temperature rise cumulative time effective for a temperature rise in a sub- turbocharger is calculated by a temperature rise time cumulation calculating means 63. When the temperature rise cumulative time exceeds the setting time, opening of an exhaust bypass valve 41 is made smaller than at the time of ordinary coasting speed by an opening control means 64 while a waste gate valve 31 is opened, through which control over supercharging pressure by means of valve opening control of both of the exhaust bypass valve 41 and the waste gate valve 31 is carried out.

9. 发明专利

JPH04370324A DECELERATION AIR BYPASS VALVE CONTROL DEVICE FOR ENGINE HAVING SUPERCHARGER 失效
公开(公告)号：JPH04370324A
公开(公告)日：1992-12-22
申请号：JP17186391
申请日：1991-06-18
申请人： TOYOTA MOTOR CORP
发明人： YOSHIOKA MAMORU , SUGIYAMA TOSHIHISA , NAKADA KUNIHIKO , KANTO YUJI
IPC分类号： F02B37/16 , F02B37/007 , F02M25/07
摘要： PURPOSE:To prevent rise of intake air temperature due to recirculation of supercharge air and sufficiently lower pulsation noise due to surging. CONSTITUTION:An air bypass valve 62 installed in an air bypass path 61 is so constituted that the valve may opens by means of a difference between a supercharge pressure acting on a diaphragm 626 installed in a valve body 62a and a supercharge pressure acting on a diaphragm chamber 62c. The diaphragm chamber 62c and the upstream side from a compressor 7b, 8b are mutually connected so that the two also communicate with each other through the 1st pressure introduction path 63. In the 1st pressure introduction path 63, a positive pressure delay valve 64 for introducing the supercharge pressure upstream from the compressor to the diaphragm chamber 62c by delaying it, is disposed.

10. 发明专利

JPH04358753A EVAPORATED FUEL CONTROL DEVICE FOR SUPERCHARGERATTACHED ENGINE 失效
公开(公告)号：JPH04358753A
公开(公告)日：1992-12-11
申请号：JP4231691
申请日：1991-02-15
申请人： TOYOTA MOTOR CORP
发明人： NAKADA KUNIHIKO , YOSHIOKA MAMORU , SUGIYAMA TOSHIHISA , KANTO YUJI
IPC分类号： F02B37/007 , F02B37/00 , F02M25/08
摘要： PURPOSE:To prevent unnecessary purging action arising at the time of a shift change in an acceleration condition. CONSTITUTION:A sub-purging passage 65, purging an evaporated fuel arising from a fuel tank 61, is provided on an intake air passage in the compressor upper stream of a sub-turbocharger 8 supercharge-operating only in a high intake-air-quantity region. A purging valve 66, opened by the compressor pressure of the sub-turbocharger 8, is provided in the sub-purging passage 65. In this evaporated fuel control device, a throttle valve 75 limiting the flow of intake air is provided in a control pressure passage 67 opening the purging valve 66 arranged in the sub-purging passage 65.

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