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1. 发明申请

US20170037801A1 EXHAUST GAS CONTROL APPARATUS AND EXHAUST GAS CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE 有权
标题翻译：用于内燃机的排气控制装置和排气控制方法
公开(公告)号：US20170037801A1
公开(公告)日：2017-02-09
申请号：US15226440
申请日：2016-08-02
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Hirohiko OTA
IPC分类号： F02D41/02 , F01N3/08 , F01N11/00 , F01N3/20
CPC分类号： F02D41/0275 , F01N3/0814 , F01N3/0842 , F01N3/0885 , F01N3/2066 , F01N3/208 , F01N11/002 , F01N2610/02 , F01N2610/1453 , F01N2900/1411 , F01N2900/1602 , F01N2900/1622 , Y02T10/24 , Y02T10/47
摘要： An exhaust gas control apparatus and method for an engine includes a urea water supply mechanism that adds urea water to exhaust gas, a SCR catalyst that adsorbs ammonia and removes NOx in the exhaust gas by using the adsorbed ammonia, and a control device that controls a urea water addition amount based on a target adsorption amount for the ammonia adsorbed onto the SCR catalyst. The control device executes an integration processing that acquires a temperature of the SCR catalyst at a predetermined cycle and integrates the acquired temperature of the SCR catalyst when equal to or higher than a threshold, and an initialization processing that decreases the amount of the ammonia adsorbed on the SCR catalyst on a condition that an integrated value of the temperature of the SCR catalyst calculated in the integration processing has become equal to or higher than a predetermined value.
摘要翻译：发动机的排气控制装置和方法包括：向排气中添加尿素水的尿素水供给机构，利用吸附的氨吸附氨并除去废气中的NOx的SCR催化剂，以及控制装置基于吸附到SCR催化剂上的氨的目标吸附量的尿素水添加量。控制装置执行以规定的周期取得SCR催化剂的温度的积分处理，将SCR催化剂的取得温度在阈值以上时进行积分，并且使吸附的氨的量减少的初始化处理在积分处理中计算出的SCR催化剂的温度的积分值变为等于或大于预定值的条件下，SCR催化剂。

2. 发明申请

US20160281567A1 EXHAUST GAS CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE 有权
标题翻译：用于内燃机的排气控制装置
公开(公告)号：US20160281567A1
公开(公告)日：2016-09-29
申请号：US15077137
申请日：2016-03-22
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Hirohiko OTA
IPC分类号： F01N3/20
CPC分类号： F01N3/208 , F01N3/2006 , F01N9/00 , F01N2610/02 , F01N2610/146 , F01N2900/1402 , F01N2900/1602 , F01N2900/1622 , Y02T10/24 , Y02T10/47
摘要： An exhaust gas control apparatus for an internal combustion engine includes a urea water injection valve, a catalyst disposed in an exhaust passage downstream of the injection valve, and an electronic control unit. The injection valve is configured to add urea water to exhaust gas. The catalyst is configured to adsorb ammonia generated from the urea water. The electronic control unit is configured to (i) set a target adsorption amount of the ammonia adsorbed on the catalyst, (ii) control the injection valve such that the amount of the urea water added to the exhaust gas becomes an addition amount calculated based on the target adsorption amount, and (iii) execute an initialization processing for decreasing the amount of the ammonia adsorbed on the catalyst to (zero) when an integrated value of the amount of the NOx flowing into the catalyst is equal to or higher than a predetermined value.
摘要翻译：用于内燃机的排气控制装置包括尿素水喷射阀，设置在喷射阀下游的排气通道中的催化剂和电子控制单元。喷射阀构造成将尿素水添加到废气中。催化剂被配置成吸附由尿素水产生的氨。电子控制单元构成为：（i）设定吸附在催化剂上的氨的目标吸附量，（ii）控制喷射阀，使得添加到废气中的尿素水的量成为基于目标吸附量，（iii）当流入催化剂的NOx的量的积分值为规定值以上时，执行将催化剂上吸附的氨的量减少为（零）的初始化处理值。

3. 发明申请

US20160258332A1 EXHAUST GAS CONTROL APPARATUS 有权
标题翻译：排气控制装置
公开(公告)号：US20160258332A1
公开(公告)日：2016-09-08
申请号：US15056530
申请日：2016-02-29
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Hirohiko OTA
IPC分类号： F01N3/20 , B01D53/94
CPC分类号： F01N3/208 , B01D53/9431 , B01D53/9495 , B01D2251/2062 , F01N2610/02 , F01N2610/1406 , F01N2610/144 , F01N2610/146 , F01N2900/1406 , F01N2900/1602 , F01N2900/1622 , F01N2900/1626 , F01N2900/1811 , Y02T10/24
摘要： An exhaust gas control apparatus includes an exhaust passage, a urea water tank, a urea adding valve, a urea pump, a pipe, and an electronic control unit. The electronic control unit is configured to drive the urea pump to perform a filling control when a condition requiring an execution of urea water addition to the exhaust gas in the exhaust passage by the urea adding valve is satisfied so that the pipe is filled with the urea water. The electronic control unit is configured to execute the filling control when an exhaust pressure of the exhaust passage is equal to or less than a specified value. The electronic control unit is configured to stop the filling control when the exhaust pressure of the exhaust passage exceeds the specified value during the execution of the filling control.
摘要翻译：排气控制装置包括排气通道，尿素水箱，尿素添加阀，尿素泵，管道和电子控制单元。电子控制单元被配置为当满足尿素添加阀对排气通道中排出的废气进行尿素水的需要的条件时，驱动尿素泵进行填充控制，水。电子控制单元被配置为当排气通道的排气压力等于或小于规定值时执行填充控制。电子控制单元被配置为在执行填充控制期间当排气通道的排气压力超过规定值时停止填充控制。

4. 发明申请

US20160222850A1 EXHAUST PURIFYING APPARATUS FOR INTERNAL COMBUSTION ENGINE 有权
标题翻译：用于内燃机的排气净化装置
公开(公告)号：US20160222850A1
公开(公告)日：2016-08-04
申请号：US14987187
申请日：2016-01-04
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Hirohiko OTA
IPC分类号： F01N3/08 , F02M26/50 , F02D43/04 , F01N3/20
CPC分类号： F01N3/0814 , F01N3/023 , F01N3/0821 , F01N3/106 , F01N3/20 , F01N3/2066 , F01N3/208 , F01N13/009 , F01N2550/02 , F01N2560/026 , F01N2570/18 , F01N2610/02 , F01N2900/0416 , F01N2900/1402 , F01N2900/1618 , F02D41/0055 , F02D41/0235 , F02D41/0245 , F02D41/027 , F02D41/1446 , F02D41/1463 , F02D41/401 , F02D43/04 , F02D2200/0802 , F02D2200/0804 , F02M26/50 , F02M2026/001 , Y02T10/24
摘要： An exhaust purifying apparatus for an internal combustion engine includes a NOx removing catalyst, an oxidation catalyst, and a controller which is configured to calculate the amount of NOx contained in exhaust gas that has passed through the oxidation catalyst. The controller is configured to execute an abnormality diagnosis process that determines the existence of an abnormality in the NOx removing catalyst if NOx removal efficiency obtained from the amount of NOx is less than or equal to a predetermined value. The controller is configured to execute the abnormality diagnosis process after executing a desorption process that desorbs unburned fuel adsorbed by the NOx removing catalyst if an execution condition of the abnormality diagnosis process is met.
摘要翻译：用于内燃机的排气净化装置包括NOx去除催化剂，氧化催化剂和控制器，其被配置为计算通过氧化催化剂的废气中所含的NOx的量。控制器被配置为执行异常诊断处理，其确定如果从NOx的量获得的NOx去除效率小于或等于预定值，则NOx除去催化剂中存在异常。控制器被配置为在满足异常诊断处理的执行条件的情况下，在执行解吸过程之后执行异常诊断处理，该脱附过程解除由除去NOx催化剂吸附的未燃燃料。

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