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1. 发明专利

JP4775282B2 Exhaust control device for an internal combustion engine 有权
公开(公告)号：JP4775282B2
公开(公告)日：2011-09-21
申请号：JP2007043318
申请日：2007-02-23
申请人：トヨタ自動車株式会社
发明人：久大木 , 崇小山 , 貴文山田 , 剛橋詰 , 貴之細木 , 清藤原 , 智洋金子 , 正浩長江
IPC分类号： F01N3/36 , F01N3/24 , F02M25/07
CPC分类号： Y02T10/121
摘要： PROBLEM TO BE SOLVED: To suppress variation in combustion caused by fuel addition while ensuring accuracy of fuel addition when providing an exhaust gas recirculation device for recirculating exhaust gas from downstream of a fuel adding valve arranged in an exhaust emission passage. SOLUTION: A diesel particulate filter and a NOx occlusion reducing catalyst are arranged on the exhaust emission passage, and the fuel adding valve is arranged upstream of an exhaust emission control device. The fuel adding valve adds fuel into the exhaust emission passage for regenerating a catalyst. The exhaust emission control system is provided with a high-pressure loop exhaust gas recirculation device for recirculating the exhaust gas from upstream of the exhaust emission control device to an intake side and a low-pressure loop exhaust gas recirculation device for recirculating the exhaust gas from downstream of the exhaust emission control device to the intake side. When fuel is added for regenerating the catalyst, an addition control means determines for every control intervals, the unit amount added which is the amount of fuel added in one fuel addition. The addition control means adds the minimum amount of fuel injected when the unit amount added is smaller than the minimum amount of injected by the fuel adding means, and also subtracts the excess amount of fuel when the minimum amount of fuel injected is added, from the amount of fuel added in the subsequent fuel addition. COPYRIGHT: (C)2008,JPO&INPIT

2. 发明专利

JP4766060B2 A control system for an internal combustion engine 有权
标题翻译：空值
公开(公告)号：JP4766060B2
公开(公告)日：2011-09-07
申请号：JP2008018451
申请日：2008-01-30
申请人：トヨタ自動車株式会社
发明人：貴之細木
IPC分类号： F02M25/07 , F02B31/00
CPC分类号： Y02T10/121 , Y02T10/146
摘要： PROBLEM TO BE SOLVED: To appropriately control the amount of EGR when there arises aged deterioration, in an internal combustion engine having a swirl control valve. SOLUTION: This control device for the internal combustion engine is appropriately used for controlling the internal combustion engine having the swirl control valve (SCV) on an intake passage. Specifically, a differential pressure detection means detects differential pressure between pressure upstream of a portion provided with the SCV and pressure downstream of the portion provided with the SCV. An EGR amount control means controls the amount of EGR circulating in an intake system based on a secular change in the differential pressure. That is, the amount of EGR is feedback-controlled based on a secular change in the differential pressure. Thereby, it is possible to appropriately suppress the deterioration of emission caused by carbon build-up around the SCV and fixation of the SCV. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：在具有旋流控制阀的内燃机中，适当地控制在出现老化时的EGR量。解决方案：用于内燃机的该控制装置适用于在进气通道上控制具有涡流控制阀（SCV）的内燃机。具体地说，差压检测装置检测设置有SCV的部分上游的压力与设置有SCV的部分下游的压力之间的差压。 EGR量控制装置基于差压的长期变化来控制在进气系统中循环的EGR量。也就是说，EGR的量基于差压的长期变化进行反馈控制。由此，可以适当地抑制SCV周围的碳积聚导致的放电劣化和SCV的固定。版权所有（C）2009，JPO＆INPIT

3. 发明专利

JP5104786B2 A control system for an internal combustion engine 有权
公开(公告)号：JP5104786B2
公开(公告)日：2012-12-19
申请号：JP2009053246
申请日：2009-03-06
申请人：トヨタ自動車株式会社
发明人：貴之細木
IPC分类号： F02D41/04 , F02D21/08 , F02D41/34 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To provide a control device of an internal combustion engine capable of properly controlling a fuel injection quantity by taking into consideration a variation in the temperature or pressure of each cylinder. SOLUTION: The control device of the internal combustion engine is applied to the internal combustion engine having a plurality of cylinders, and an estimating means estimates the temperature of each cylinder based on the pulsation of the temperature in a collecting part of exhaust gas, and a storage means predetermines and stores the temperature of each cylinder as a map value. A control means increases a post-injection quantity to the cylinder higher in the estimated temperature than the temperature stored as the map value, when an absolute value of a difference between the estimated temperature and the temperature stored as the map value is a predetermined value or higher, and reduces the post-injection quantity or stops post-injection to the cylinder lower in the estimated temperature than the temperature stored as the map value. Thus, the progress of oil dilution in the low temperature cylinder can be properly restrained. COPYRIGHT: (C)2010,JPO&INPIT

4. 发明专利

JP4853297B2 An exhaust system of an internal combustion engine 有权
公开(公告)号：JP4853297B2
公开(公告)日：2012-01-11
申请号：JP2007006971
申请日：2007-01-16
申请人：トヨタ自動車株式会社
发明人：久大木 , 崇小山 , 貴文山田 , 剛橋詰 , 貴之細木 , 清藤原 , 智洋金子 , 正浩長江
IPC分类号： F02D21/08 , F01N3/021 , F01N3/24 , F01N3/36 , F02D43/00 , F02M25/07
CPC分类号： Y02T10/121
摘要： PROBLEM TO BE SOLVED: To provide an exhaust system of an internal combustion engine, which makes control of an accurate EGR rate by maintaining injection accuracy of a fuel adding means which injects fuel to an exhaust passage. SOLUTION: The exhaust system includes: a fuel addition valve 13 for injecting fuel for recovering a purifying function of an exhaust emission control device 9 incorporating a filter 12; a low pressure exhaust circulation device 14 for taking out EGR gas from downstream of the exhaust emission control device 9; and a high pressure exhaust circulation device 18 for taking out EGR gas from upstream of the fuel addition valve 13. When the amount of fuel that should be injected from the fuel addition valve 13 is an amount that cannot maintain injection accuracy, a distribution of the gas flow rate of EGR gas introduced into the low pressure exhaust circulation device 14 and the gas flow rate of EGR gas introduced into the high pressure exhaust circulation device 18, is changed so as to increase the gas flow rate of gas passing through the exhaust emission control device 9. COPYRIGHT: (C)2008,JPO&INPIT

5. 发明专利

JP4802904B2 Exhaust gas purification system for an internal combustion engine 有权
公开(公告)号：JP4802904B2
公开(公告)日：2011-10-26
申请号：JP2006200988
申请日：2006-07-24
申请人：トヨタ自動車株式会社
发明人：久大木 , 剛橋詰 , 貴之細木
IPC分类号： F02D21/08 , B01D53/94 , F01N3/02 , F01N3/18 , F01N9/00 , F02D9/04 , F02D41/18 , F02D45/00 , F02M25/07
CPC分类号： Y02T10/47
摘要： PROBLEM TO BE SOLVED: To provide technology capable of inhibiting generation of strange noise at a time of open of an exhaust throttle valve when high pressure recovery process is released and inhibiting harmful influence on control of an internal combustion engine caused by erroneous detection of intake air quantity of an air flow meter due to reverse flow of exhaust gas at a time of open of EGR valve in an exhaust emission control system for an internal combustion engine. SOLUTION: In the exhaust emission control system for the internal combustion engine performing high pressure recovery process in which the exhaust throttle valve and the EGR valve are throttled to raise exhaust gas pressure in an exhaust emission control device and temperature of the exhaust emission control device is raised, the EGR valve is opened before the exhaust throttle valve (S103) when the high pressure recovery process is released (S101), and reading output signal of an air flow meter is stopped (S102) when the EGR valve is closed. COPYRIGHT: (C)2008,JPO&INPIT

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