专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20020194840A1 Air-fuel ratio control apparatus of internal combustion engine 失效
标题翻译：内燃机空燃比控制装置
公开(公告)号：US20020194840A1
公开(公告)日：2002-12-26
申请号：US10212105
申请日：2002-08-06
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Junichi Kako , Toshinari Nagai , Naohide Fuwa , Kazunori Kojima , Akihiro Katayama , Naoto Kato
IPC分类号： F01N003/00
CPC分类号： F01N11/007 , F02D41/0295 , F02D41/047 , F02D41/1441 , F02D41/1456 , F02D2041/1422 , F02D2200/0814 , F02D2200/0816 , Y02T10/47
摘要： An air-fuel ratio control apparatus of an internal combustion engine according to the present invention is provided with oxygen storage amount estimating means, downstream exhaust air-fuel ratio detecting means, maximum oxygen storage amount estimating means, and air-fuel ratio target setting means. The oxygen storage amount estimating means estimates an oxygen storage amount of an exhaust purifying catalyst, based on a history of an oxygen adsorption/desorption amount of the exhaust purifying catalyst located on an exhaust path. The downstream exhaust air-fuel ratio detecting means is located downstream of the exhaust purifying catalyst and detects an exhaust air-fuel ratio downstream of the exhaust purifying catalyst. The maximum oxygen storage amount estimating means estimates a maximum oxygen storage amount, based on an oxygen storage amount estimate when the exhaust air-fuel ratio detected is a predetermined air-fuel ratio. This permits effective utilization of oxygen occlusion capability of the exhaust purifying catalyst and improvement in exhaust purification performance.
摘要翻译：根据本发明的内燃机的空燃比控制装置设置有储氧量估计装置，下游排气空燃比检测装置，最大氧气存储量估计装置和空燃比目标设定装置。氧气存储量估计装置基于位于排气路径上的排气净化催化剂的氧吸附/脱附量的历史来估计排气净化催化剂的氧气存储量。下游排气空燃比检测装置位于排气净化催化剂的下游，并且检测排气净化催化剂下游的排气空燃比。最大氧气存储量估计装置基于当检测到的排气空燃比为预定空燃比时的氧气存储量估计值来估计最大氧气存储量。这样可以有效地利用排气净化催化剂的吸氧能力，提高排气净化性能。

2. 发明申请

US20040107946A1 Fuel injection amount control method and apparatus of internal combustion engine 失效
公开(公告)号：US20040107946A1
公开(公告)日：2004-06-10
申请号：US10716418
申请日：2003-11-20
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Daisuke Kobayashi , Kazunori Kojima
IPC分类号： F02D041/32
CPC分类号： F02D41/1401 , F02D41/182 , F02D41/34 , F02D2041/001 , F02D2041/1433 , F02D2200/0402 , F02D2200/0404 , F02D2200/0616 , F02D2200/602 , F02D2200/703 , F02D2250/12
摘要： A fuel injection amount control apparatus estimates an intake air amount for a present or coming suction stroke of a cylinder based on an estimated throttle opening, and calculates a pre-correction estimated necessary fuel amount based on the intake air amount. The apparatus also calculates an actual intake air amount based on an actual throttle opening at the end of the previous suction stroke, and calculates an actual necessary fuel amount based on the actual intake air amount. The apparatus then calculates an actual intake fuel amount based on an actual fuel injection amount for the previous suction stroke and a forward fuel behavior model, calculates a normal estimated necessary fuel amount by correcting the pre-correction necessary fuel amount according to a difference between the actual necessary fuel amount and the actual intake fuel amount, and calculates a fuel injection amount for this suction stroke, based on a reverse fuel behavior model, so as to induct fuel of the normal estimated necessary fuel amount into the cylinder.

3. 发明申请

US20020011068A1 Air-fuel ratio control apparatus of internal combustion engine 失效
公开(公告)号：US20020011068A1
公开(公告)日：2002-01-31
申请号：US09880029
申请日：2001-06-14
申请人： Toyota Jidosha Kabushiki Kaisha
发明人： Junichi Kako , Toshinari Nagai , Naohide Fuwa , Kazunori Kojima , Akihiro Katayama , Naoto Kato
IPC分类号： F01N003/00 , F01N007/00
CPC分类号： F01N11/007 , F02D41/0295 , F02D41/047 , F02D41/1441 , F02D41/1456 , F02D2041/1422 , F02D2200/0814 , F02D2200/0816 , Y02T10/47
摘要： An air-fuel ratio control apparatus of an internal combustion engine according to the present invention is provided with oxygen storage amount estimating means, downstream exhaust air-fuel ratio detecting means, maximum oxygen storage amount estimating means, and air-fuel ratio target setting means. The oxygen storage amount estimating means estimates an oxygen storage amount of an exhaust purifying catalyst, based on a history of an oxygen adsorption/desorption amount of the exhaust purifying catalyst located on an exhaust path. The downstream exhaust air-fuel ratio detecting means is located downstream of the exhaust purifying catalyst and detects an exhaust air-fuel ratio downstream of the exhaust purifying catalyst. The maximum oxygen storage amount estimating means estimates a maximum oxygen storage amount, based on an oxygen storage amount estimate when the exhaust air-fuel ratio detected is a predetermined air-fuel ratio. This permits effective utilization of oxygen occlusion capability of the exhaust purifying catalyst and improvement in exhaust purification performance.

4. 发明申请

US20040079342A1 Fuel injection amount control apparatus and method of internal combustion engine 失效
公开(公告)号：US20040079342A1
公开(公告)日：2004-04-29
申请号：US10676157
申请日：2003-10-02
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Kazunori Kojima , Junichi Kako , Koichi Ueda
IPC分类号： F02M051/00 , F02M025/07
CPC分类号： F02D41/0055 , B60L1/02 , B60L11/14 , B60L15/20 , B60L2210/40 , B60L2220/14 , B60L2240/12 , B60L2240/421 , B60L2240/423 , B60L2240/441 , B60L2240/443 , B60L2240/445 , B60L2240/80 , B60L2250/26 , B60L2260/26 , B60L2270/12 , F02B31/06 , F02D41/042 , F02D41/047 , F02D41/065 , F02M26/13 , F02M35/021 , F02M69/044 , Y02T10/146 , Y02T10/47 , Y02T10/645 , Y02T10/70 , Y02T10/7077 , Y02T10/7241 , Y02T10/7275
摘要： A fuel injection amount control apparatus of an internal combustion engine is arranged to start injection of a fuel into an intake passage of the engine when a certain engine start condition is satisfied, and stop the injection of the fuel when a certain engine stop condition is satisfied. The control apparatus estimates an amount of fuel deposited on an intake passage forming member that defines the intake passage, and determines a fuel injection amount based on the estimated fuel deposition amount. The control apparatus also executes a particular process for making an actual fuel deposition amount on the intake passage forming member substantially equal to zero, after the engine stop condition is satisfied and before the injection of the fuel is started under a condition that the engine start condition is satisfied.

5. 发明申请

US20020040705A1 Fuel injection control apparatus, control method, and control program of internal combustion engine 失效
标题翻译：燃油喷射控制装置，控制方法和内燃机控制程序
公开(公告)号：US20020040705A1
公开(公告)日：2002-04-11
申请号：US09955161
申请日：2001-09-19
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Kazunori Kojima , Junichi Kako
IPC分类号： F02M051/00
CPC分类号： F02D41/047
摘要： In a fuel injection control apparatus of an internal combustion engine for controlling a fuel supply quantities by making use of a fuel behavior model obtained by modeling the dynamic behavior of fuel flowing from injector 27 into combustion chamber 14 of cylinder 10 of engine 1, the fuel behavior model is configured to estimate the dynamic fuel behavior such as attachment onto and detachment from a wall surface, e.g., using separate quantities, a wall surface adhesion quantity Fwv(k) of a low boiling point component and a wall surface adhesion quantity Fwp(k) of a high boiling point component at each time k, and to control an injected fuel quantity Fi(k) so that a fuel quantity Fc(k) of fuel flowing into the cylinder becomes a target value.
摘要翻译：在内燃机的燃料喷射控制装置中，通过利用通过将从喷射器27流入的燃料的动力学行为模拟到发动机1的气缸10的燃烧室14而获得的燃料行为模型来控制燃料供给量，行为模型被配置为估计动态燃料行为，例如附接到壁表面上和从壁表面脱离，例如使用单独的量，低沸点组分的壁表面粘附量Fwv（k）和壁表面粘附量Fwp（ k），并且控制喷射燃料量Fi（k），使得流入气缸的燃料的燃料量Fc（k）成为目标值。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式