-
公开(公告)号：JP2013007310A
公开(公告)日：2013-01-10
申请号：JP2011139801
申请日：2011-06-23
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： NAKATANI KOICHIRO , YAMASHITA AKIRA
Abstract: PROBLEM TO BE SOLVED: To provide a technique for efficiently using a specific heat change band in the lowest temperature region, when using cooling water having specific heat change bands in a plurality of temperature regions.SOLUTION: This cooling device for an internal combustion engine uses cooling water having specific heat change bands while specific heat changes in a plurality of temperature regions and controls the cooling water in a plurality of target temperature states using the specific heat change bands. A permissible heat receiving amount permissible by the change in specific heat in the specific heat change band of the lowest temperature region is larger than those in the other specific heat change bands.
Abstract translation: 要解决的问题：提供一种用于在多个温度区域中使用具有比热变换带的冷却水时，在最低温度区域中有效地使用比热变换带的技术。 解决方案：该内燃机用冷却装置使用具有比热变化的冷却水，同时在多个温度区域进行比热改变，并使用比热变换带控制多个目标温度状态下的冷却水。 最低温度区域的比热变化带中的比热变化允许的允许热量大于其他比热变换带的允许热容量。 版权所有（C）2013，JPO＆INPIT
-
公开(公告)号：JP2012102628A
公开(公告)日：2012-05-31
申请号：JP2010249751
申请日：2010-11-08
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： NAKATANI KOICHIRO , YAMASHITA AKIRA , SAODA TAKENORI
IPC: F01P7/16
Abstract: PROBLEM TO BE SOLVED: To optimize an open-and-close condition of a thermostat.SOLUTION: An internal combustion engine cooling system 1 circulates a coolant to a coolant passage 12 of which the specific heat is increased higher at a plurality of predetermined temperatures than at other than the predetermined temperature. The system includes: a radiator 13; a bypass passage 14 for bypassing the radiator 13; the thermostat 15; and a control device 30 which opens the thermostat 15 at any of the plurality of predetermined temperatures and changes a temperature of opening the thermostat 15 according to an operation condition of the internal combustion engine 1.
Abstract translation: 要解决的问题：优化恒温器的开启和关闭状态。 解决方案：内燃机冷却系统1将冷却剂循环到冷却剂通道12，其比热比预定温度以外的多个预定温度更高地增加比热。 该系统包括：散热器13; 用于旁路散热器13的旁路通路14; 恒温器15; 以及控制装置30，其以多个预定温度中的任何一个打开恒温器15，并根据内燃机1的操作条件改变打开恒温器15的温度。版权所有：（C）2012，JPO＆INPIT
-
公开(公告)号：JP2011117461A
公开(公告)日：2011-06-16
申请号：JP2011059005
申请日：2011-03-17
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： OGO TOMOYOSHI , NAKATANI KOICHIRO
IPC: F02D13/02
Abstract: PROBLEM TO BE SOLVED: To provide a catalyst control device of an internal combustion engine that properly corrects catalyst temperature rise to external changes caused while catalyst temperature is rising.
SOLUTION: The catalyst control device includes an exhaust variable valve gear that changes opening and closing periods of an exhaust valve. The catalyst control device executes the catalyst rise control for rising the catalyst based on a lead angle of the opening and closing period of the exhaust valve. When fuel residual amount is below a predetermined value, the opening and closing periods of the exhaust valve are corrected to an angle of lag so that an air-fuel ration of gas emitted from is prevented from being enriched.
COPYRIGHT: (C)2011,JPO&INPITAbstract translation: 要解决的问题：提供一种内燃机的催化剂控制装置，其适当地校正催化剂温度升高到催化剂温度升高时引起的外部变化。 解决方案：催化剂控制装置包括改变排气阀的打开和关闭时段的排气可变阀齿轮。 催化剂控制装置基于排气阀的开闭期间的前角执行催化剂上升控制，以使催化剂上升。 当燃料残留量低于预定值时，将排气门的打开和关闭时段校正为滞后角度，从而防止排出的气体的空气燃料比增浓。 版权所有（C）2011，JPO＆INPIT
-
公开(公告)号：JP2009209780A
公开(公告)日：2009-09-17
申请号：JP2008053752
申请日：2008-03-04
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： ONO TOMOYUKI , TOMOTA AKITOSHI , ISHIYAMA SHINOBU , NAKATANI KOICHIRO , OGO TOMOYOSHI , ITO KATSUHIRO
CPC classification number: Y02T10/144 , Y02T10/18
Abstract: PROBLEM TO BE SOLVED: To effectively increase torque by appropriately utilizing an exhaust blow down effect when a request for increasing the torque is issued, in an internal combustion engine provided with a variable valve train capable of changing a valve overlap period and a variable nozzle type turbo supercharger, about a control device of the internal combustion engine. SOLUTION: In the case that the request for increasing the torque is issued, firstly, a variable nozzle 22c is controlled to be fully closed without providing the valve overlap period. Then, in the case of determining that the torque is risen to close to a maximum torque curve (near a triangle mark) which can be output while the valve overlap period is not provided, a variable nozzle aperture is gradually opened to an aperture for an optimum turbo efficiency and the valve overlap period is gradually extended to obtain the exhaust blow down effect. In this case, post injection is executed to additionally provide a turbine 22a with exhaust energy. COPYRIGHT: (C)2009,JPO&INPIT
Abstract translation: 要解决的问题：通过在发出增加扭矩的请求时适当地利用排气减压效果来有效地提高扭矩，在具有能够改变阀重叠期间的可变气门机构的内燃机中，以及 可变喷嘴型涡轮增压器，涉及内燃机的控制装置。 解决方案：在发出增加扭矩的请求的情况下，首先，将可变喷嘴22c控制为完全关闭，而不设置阀重叠周期。 然后，在确定扭矩上升到接近可以在没有设置阀重叠周期的情况下输出的最大扭矩曲线（靠近三角形标记）的情况下，可变喷嘴孔径逐渐向开口开口 最佳涡轮效率和阀重叠时间逐渐延长，以获得排气效果。 在这种情况下，执行后喷射以向涡轮机22a另外提供排气能量。 版权所有（C）2009，JPO＆INPIT
-
公开(公告)号：JP2009162113A
公开(公告)日：2009-07-23
申请号：JP2008000797
申请日：2008-01-07
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： OGO TOMOYOSHI , TOMOTA AKITOSHI , ISHIYAMA SHINOBU , ONO TOMOYUKI , NAKATANI KOICHIRO , ITO KATSUHIRO , HISATAKA YOSHIHIRO
CPC classification number: F02D13/0207 , F02D13/023 , F02D13/0257 , Y02T10/18
Abstract: PROBLEM TO BE SOLVED: To enhance a swirl ratio while suppressing the deterioration of a flow coefficient of an intake port, in a control device of an internal combustion engine. SOLUTION: This control device has a first intake port (a main flow port) 60 having characteristics in which a swirl ratio is increased as an air amount passing through the inside is increased and an intake variable valve mechanism 40 making variable valve opening characteristics of an intake valves 64, 66. When a demand to increase the swirl ratio exists, both valve (all valve) early opening control for advancing opening times of all the intake valves 64, 66 arranged in the same cylinder is executed. COPYRIGHT: (C)2009,JPO&INPIT
Abstract translation: 要解决的问题：在内燃机的控制装置中，为了提高涡流比，同时抑制进气口的流量系数的劣化。 解决方案：该控制装置具有第一进气口（主流通口）60，其特征在于当通过内部的空气量增加时涡流比增加;以及进气可变气门机构40，其形成可变阀开度 进气阀64,66的特性。当存在增加涡流比的需求时，执行设置在同一气缸中的所有进气阀64,66的打开时间的提前打开控制阀（全阀）。 版权所有（C）2009，JPO＆INPIT
-
Patent Agency Ranking
公开(公告)号：JP2009121289A
公开(公告)日：2009-06-04
申请号：JP2007294706
申请日：2007-11-13
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： NAKATANI KOICHIRO , TOMOTA AKITOSHI , ISHIYAMA SHINOBU , ONO TOMOYUKI , OGO TOMOYOSHI , ITO KATSUHIRO
CPC classification number: F02D41/0055 , B01D2255/91 , B01D2258/012 , F01N3/0814 , F01N3/0842 , F01N3/106 , F01N13/009 , F02D41/0052 , F02D41/0275 , F02D2200/0802 , F02D2250/38 , Y02T10/47
Abstract: PROBLEM TO BE SOLVED: To provide a technique capable of more suitably reducing NOx stored in a NOx catalyst in an exhaust emission control system for an internal combustion engine.
SOLUTION: When NOx stored in the NOx catalyst is reduced, an air-fuel ratio of perimeter atmosphere of the NOx catalyst is reduced to a target air-fuel ratio by reducing an air-fuel ratio of exhaust gas discharged from the internal combustion engine. At this time, when the temperature of the NOx catalyst is predetermined temperature or higher, the air-fuel ratio of the perimeter atmosphere of the NOx catalyst is reduced to the target air-fuel ratio while the combustion state of the internal combustion engine is made become low-temperature combustion (S104, S105). Meanwhile, when the temperature of the NOx catalyst is below the predetermined temperature, the air-fuel ratio of the perimeter atmosphere of the NOx catalyst is reduced to the target air-fuel ratio while the amount of EGR gas inside a cylinder is reduced so that generation amount of smoke is within a tolerance (S107, S105).
COPYRIGHT: (C)2009,JPO&INPITAbstract translation: 要解决的问题：提供一种能够更适当地减少存储在用于内燃机的废气排放控制系统中的NOx催化剂中的NOx的技术。 解决方案：当存储在NOx催化剂中的NOx降低时，NOx催化剂的周围气氛的空燃比通过降低从内部排出的废气的空燃比而降低到目标空燃比 内燃机。 此时，当NOx催化剂的温度为规定温度以上时，将NOx催化剂的周围气氛的空燃比降低到目标空燃比，同时制作内燃机的燃烧状态 成为低温燃烧（S104，S105）。 同时，当NOx催化剂的温度低于预定温度时，NOx催化剂的周围气氛的空燃比被降低到目标空燃比，而气缸内的EGR气体的量减少， 烟雾的发生量在公差范围内（S107，S105）。 版权所有（C）2009，JPO＆INPIT
-
公开(公告)号：JP2009068450A
公开(公告)日：2009-04-02
申请号：JP2007239645
申请日：2007-09-14
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： OGO TOMOYOSHI , TOMOTA AKITOSHI , ISHIYAMA SHINOBU , ONO TOMOYUKI , NAKATANI KOICHIRO , ITO KATSUHIRO , NAKAGAWA MASAYOSHI , HISATAKA YOSHIHIRO
CPC classification number: Y02T10/144
Abstract: PROBLEM TO BE SOLVED: To surely avoid surge of a turbocharger in relation to a control device for an internal combustion engine.
SOLUTION: In the internal combustion engine provided with the turbocharger and an exhaust variable valve gear capable of varying at least open timing of an exhaust valve, filling efficiency improving control improving filling efficiency by using scavenging effect is executed by changing exhaust valve opening timing so as to make a minimum point of pulsation of exhaust port pressure coincide with a valve overlap period during which exhaust valve opening period and intake valve opening period overlap during heavy load operation. When it is detected that it is under a condition where effect of filling efficiency improving control declines, rise of supercharging pressure is suppressed during execution of filling efficiency improving control.
COPYRIGHT: (C)2009,JPO&INPITAbstract translation: 要解决的问题：为了确保避免涡轮增压器相对于内燃机的控制装置的浪涌。 解决方案：在具有涡轮增压器的内燃机和能够至少改变排气门的开启正时的排气可变气门齿轮的情况下，通过改变排气门开度执行填充效率提高控制，通过使用清除效果来提高灌装效率 使排气口压力的最小脉动点与重负荷运转时排气门打开期间和进气阀打开期间重叠的阀重叠期间一致。 当检测到处于填充效率改善控制的效果下降的情况下，在执行填充效率改善控制期间抑制了增压压力的上升。 版权所有（C）2009，JPO＆INPIT
-
公开(公告)号：JP2009041489A
公开(公告)日：2009-02-26
申请号：JP2007208488
申请日：2007-08-09
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： NAKATANI KOICHIRO
IPC: F02D41/38 , F01N3/20 , F01N3/36 , F02D13/02 , F02D41/04 , F02D41/40 , F02D43/00 , F02D45/00 , F02M45/02
Abstract: PROBLEM TO BE SOLVED: To reasonably perform rich spike, particularly, rich spike by post injection in an internal combustion engine having an exhaust variable valve train by a control device of an internal combustion engine. SOLUTION: It is determined whether rich spike is required or not (step 100). When rich spike is determined to be necessary, it is determined whether an exhaust valve opening timing is earlier than a predetermined timing or not (step 102). When the exhaust valve opening timing is earlier than the predetermined timing, the rich spike is performed by the addition of exhaust system fuel in which a fuel is injected from a fuel adding valve (step 104). When the exhaust valve opening timing is later than the predetermined timing, the rich spike is performed by post injection (step 106). COPYRIGHT: (C)2009,JPO&INPIT
Abstract translation: 要解决的问题：通过内燃机的控制装置在具有排气可变气门机构的内燃机中通过后喷射来合理地执行丰富的峰值，特别是通过后喷射。
解决方案：确定是否需要富峰值（步骤100）。 当确定需要丰富尖峰时，确定排气门打开定时是否早于预定定时（步骤102）。 当排气门打开正时早于预定时间时，通过添加其中从燃料添加阀喷射燃料的排气系统燃料来进行浓作用（步骤104）。 当排气门打开正时晚于预定定时时，通过后喷射执行浓尖（步骤106）。 版权所有（C）2009，JPO＆INPIT
-
公开(公告)号：JP2009041453A
公开(公告)日：2009-02-26
申请号：JP2007207444
申请日：2007-08-09
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： NAKATANI KOICHIRO
CPC classification number: Y02T10/121
Abstract: PROBLEM TO BE SOLVED: To provide an exhaust emission purifier for an internal combustion engine restraining torque decline of the internal combustion engine even if an EGR gas is introduced to an air intake path while executing a rich spike.
SOLUTION: The exhaust emission purifier for an internal combustion engine comprises: a filter 41 whose function is regenerated by rich spike; a fuel addition valve 12 for injecting a fuel into the exhaust path upstream of the filter 41; and a low pressure EGR path 31 for guiding a part of the exhaust gas as EGR gas from the exhaust path downstream of the filter 41 into an air intake path 4. In the case predetermined regeneration conditions are satisfied, a fuel is injected from the fuel addition valve 12 for executing rich spike to the filter 41. In the case where predetermined regeneration conditions are satisfied and the EGR gas is introduced into the air intake path 4 via the low pressure EGR path 31, a fuel is injected from the fuel addition valve 12 so that a part of the fuel injected from the fuel addition valve 12 is guided into a cylinder 2 with the exhaust gas flowing backward into the cylinder 2 while executing rich spike.
COPYRIGHT: (C)2009,JPO&INPITAbstract translation: 要解决的问题：为了提供一种用于内燃机的排气净化器，其抑制内燃机的扭矩下降，即使在执行富穗时EGR气体被引入进气路径。 解决方案：用于内燃机的排气净化器包括：过滤器41，其功能是通过丰富的尖峰再生; 用于将燃料喷射到过滤器41上游的排气路径的燃料添加阀12; 以及用于将作为EGR气体的废气的一部分从过滤器41的下游侧的排气路径引导到进气路径4的低压EGR路径31.在满足规定再生条件的情况下，燃料从燃料 用于对过滤器41执行丰富的尖峰的添加阀12.在满足预定的再生条件并且经由低压EGR通路31将EGR气体引入进气通路4的情况下，燃料从燃料添加阀 12，使得从燃料添加阀12喷射的燃料的一部分被引导到气缸2中，同时排气在执行丰富的峰值时向后流动到气缸2中。 版权所有（C）2009，JPO＆INPIT
-
公开(公告)号：JP2009008023A
公开(公告)日：2009-01-15
申请号：JP2007170865
申请日：2007-06-28
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： OGO TOMOYOSHI , NAKATANI KOICHIRO
Abstract: PROBLEM TO BE SOLVED: To provide an exhaust control device for an internal combustion engine fulfill the requirement for a large amount of EGR, while preventing adherence of reducing agent to an EGR cooler.
SOLUTION: When a request for adding the reducing agent is issued in light load, an EGR valve 48 and a bypass control valve 54 are opened together to take exhaust gas from exhaust manifolds 34, 35. A bypass passage 52 taking the exhaust gas from a second exhaust manifold 36 with exhaust fuel addition valve 36 is connected to an EGR passage 44 downstream of the EGR cooler 46 so as to bypass the EGR cooler 46.
COPYRIGHT: (C)2009,JPO&INPITAbstract translation: 要解决的问题：提供一种用于内燃机的排气控制装置，以满足对大量EGR的要求，同时防止还原剂对EGR冷却器的粘附。
解决方案：当轻负荷发出添加还原剂的请求时，EGR阀48和旁路控制阀54一起打开以从排气歧管34,35排出废气。旁通通道52以排气 来自具有排气燃料添加阀36的第二排气歧管36的气体连接到EGR冷却器46下游的EGR通道44，以便绕过EGR冷却器46.（C）2009年，JPO和INPIT
-
-
-
-
-
-
-
-
-
Search Results
281
records
(took 0.04 seconds)
