公开(公告)号：WO2007138454A1

公开(公告)日：2007-12-06

申请号：PCT/IB2007/001409

申请日：2007-05-30

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  KABUSHIKI KAISHA TOYOTA JIDOSHOKKI ,  TAHARA, Jun ,  YAMAMOTO, Yukihisa

Inventor： TAHARA, Jun ,  YAMAMOTO, Yukihisa

IPC: F02D41/02 ,  F01N3/025

CPC classification number: F02D41/0275 ,  F01N3/025

Abstract: An exhaust purification device of an internal combustion engine estimates a catalyst bed temperature from a detected value of the exhaust gas temperature (step S210), and calculates a switch amount of air that is used for determining whether or not the amount of addition of unburned fuel fraction needs to be corrected (step S220). Then, the device determines whether or not the actual amount of intake air detected is greater than the switch amount of air (step S240). If the actual amount of air exceeds the switch amount of air, it can be determined that the operation state of the engine is a state in which white smoke is likely to be produced, and therefore a correction of lessening the amount of addition of fuel provided from an fuel addition injector is performed (step S260).

Abstract translation: 内燃机的排气净化装置根据废气温度的检测值来估计催化剂床温度（步骤S210），并计算用于判断未燃烧燃料的添加量的空气的开关量 需要校正分数（步骤S220）。 然后，该装置判断检测出的实际吸气量是否大于开关量的空气量（步骤S240）。 如果实际的空气量超过空气的开关量，则可以判定为发动机的运转状态是产生白烟的状态，因此能够减少提供的燃料的添加量的校正 进行燃料添加喷射器的动作（步骤S260）。

公开(公告)号：WO2005088109A1

公开(公告)日：2005-09-22

申请号：PCT/JP2005/004736

申请日：2005-03-10

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  KABUSHIKI KAISHA TOYOTA JIDOSHOKKI ,  MATSUOKA, Hiroki ,  YAMAMOTO, Yukihisa

Inventor： MATSUOKA, Hiroki ,  YAMAMOTO, Yukihisa

IPC: F02D41/02

CPC classification number: F02D41/029 ,  F01N3/025 ,  F02D41/0057 ,  F02D41/024 ,  F02D41/123 ,  F02D41/1448 ,  F02D2041/0265 ,  F02D2200/0802 ,  F02D2200/0812 ,  F02D2200/702

Abstract: In an exhaust purifying apparatus for an internal combustion engine on a vehicle, heating control is executed for supplying fuel to exhaust purification catalysts, thereby increasing the catalyst bed temperature. The heating control is suspended when the vehicle is determined to be driving downhill. Adverse influences due to deactivation of the exhaust purification catalysts during the heating control are reliably avoided.

Abstract translation: 在车辆用内燃机的排气净化装置中，对排气净化催化剂供给燃料进行加热控制，从而提高催化剂床温度。 当车辆确定驾驶下坡时，加热控制被暂停。 可靠地避免在加热控制期间由于排气净化催化剂失活引起的不利影响。

公开(公告)号：WO2005088108A1

公开(公告)日：2005-09-22

申请号：PCT/JP2005/004735

申请日：2005-03-10

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  KABUSHIKI KAISHA TOYOTA JIDOSHOKKI ,  YOKOI, Tatsuhisa ,  YAMAMOTO, Yukihisa

Inventor： YOKOI, Tatsuhisa ,  YAMAMOTO, Yukihisa

IPC: F02D41/02

CPC classification number: F02D41/029 ,  F02D41/025 ,  F02D41/1408 ,  F02D41/1446 ,  F02D2200/0812 ,  Y02T10/26

Abstract: A regeneration controller for preventing particulate matter from increasing when an exhaust purification apparatus is inactivated. The regeneration controller includes an ECU 70 for heating the exhaust purification apparatus and eliminating the particulate matter accumulated in the exhaust purification apparatus when an estimated accumulation amount is greater than a reference accumulation amount. The ECU 70 obtains the estimated accumulation amount by estimating the amount of particulate matter accumulated in the exhaust purification apparatus. An exhaust temperature sensor 44 detects the temperature of the exhaust purification apparatus. The ECU 70 intermittently decreases the air-fuel ratio of exhaust to heat the exhaust purification apparatus and perform burn-up heating for burning the particulate matter. The ECU 70 further prohibits burn-up heating when the temperature detected by an exhaust temperature sensor 44 decreases to a catalyst inactivation level.

Abstract translation: 一种用于在废气净化装置失活时防止颗粒物质增加的再生控制器。 再生控制器包括：ECU70，其用于对排气净化装置进行加热，并且在估计累积量大于基准积存量时，排除在排气净化装置中累积的颗粒物质。 ECU70通过估计在排气净化装置中累积的颗粒物质的量来获得估计累积量。 废气温度传感器44检测排气净化装置的温度。 ECU70间歇性地减少排气的空燃比，对排气净化装置进行加热，进行燃烧加热，使其燃烧。 当由排气温度传感器44检测出的温度下降到催化剂灭活水平时，ECU70进一步禁止燃尽加热。