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    • 2. 发明专利
    • Evaporating fuel treatment device
    • 蒸发燃料处理设备
    • JP2003042008A
    • 2003-02-13
    • JP2001226497
    • 2001-07-26
    • Denso CorpNippon Soken IncToyota Motor Corpトヨタ自動車株式会社株式会社デンソー株式会社日本自動車部品総合研究所
    • ITAKURA HIDEAKIAMANO NORIYASUYOSHIOKA MAMORUKIYOMIYA SHINSUKEKANO MASAO
    • B60K15/077F02D29/02F02M25/08
    • PROBLEM TO BE SOLVED: To solve the problem that a direct-injection engine or an engine mounted on a hybrid vehicle has a throttle valve often largely opened during operation and an inlet pipe subjected to low negative pressure to provide insufficient capability for recovering an evaporating fuel absorbing canister, which should be supplemented. SOLUTION: A second purge line 27 opening to a suction port 8 of each cylinder is provided for purging the canister 18. Numeral 24 is a first purge line opening to a common inlet pipe 12, numeral 23 is a first purge valve and numeral 28 is a second purge valve. Since an inlet port 8 of each cylinder has inlet negative pressure higher than the inlet pipe 12 during an intermediate or high load, high purging capability is established in this condition. During a low-load operated condition such as idling, the first purge line 24 is utilized as conventional. By providing one-way valves in the purge lines 24, 27, canister purging operations are performed in the order of the line having higher negative pressure and the maximum purge flow is therefore provided when both of them operate together.
    • 要解决的问题为了解决直接喷射发动机或安装在混合动力车辆上的发动机具有在运行中经常大大打开的节流阀和经受低负压的进气管以提供不足以回收蒸发燃料的能力的问题 吸收罐,应补充。 解决方案:提供通向每个气缸的吸入口8的第二吹扫管线27,用于清洗罐18.数字24是通向公共入口管12的第一吹扫管线,标号23是第一吹扫阀,数字28是 第二个清洗阀。 由于每个气缸的入口端口8在中等或高负载期间具有高于入口管12的入口负压,因此在该状态下建立了高清洗能力。 在诸如怠速的低负载操作条件期间,如常规使用第一吹扫管线24。 通过在净化管线24,27中提供单向阀,以更高负压的管线的顺序执行罐清洗操作,因此当它们两者一起工作时,提供最大吹扫流量。
    • 5. 发明专利
    • Exhaust gas recirculation apparatus for engine
    • 用于发动机的排气回收装置
    • JP2013245588A
    • 2013-12-09
    • JP2012118632
    • 2012-05-24
    • Aisan Industry Co Ltd愛三工業株式会社Toyota Motor Corpトヨタ自動車株式会社
    • YOSHIOKA MAMORUNOKAWA SHINICHIROIRISAWA YASUYUKIHOKUTO HIROYUKI
    • F02M25/07
    • F02M26/54F02B29/0437F02M25/0771F02M26/05F02M26/22F02M26/35Y02T10/146
    • PROBLEM TO BE SOLVED: To prevent deceleration and misfire of an engine by an EGR without bringing a sense of idle running to a driver by improving valve closing responsiveness of an EGR valve in deceleration of the engine.SOLUTION: An EGR apparatus includes an EGR passage 17 and an EGR valve 18 provided in the EGR passage 17 to regulate an EGR flow rate in the EGR passage 17. An electronic control unit (ECU) 41 closes the EGR valve 18 from an open state prior to start of deceleration of an engine 1 based on engine rotation speed NE detected by a rotation speed sensor 52, an accelerator opening degree ACC detected by an accelerator sensor 27, and an actual opening degree TTegr of the EGR valve 18. In particular, during deceleration of the engine 1, the ECU 41 obtains a target opening degree Tegracc of the EGR valve 18 according to the separately detected engine rotation speed NE and the accelerator opening degree ACC from a target opening degree map, and starts to close the EGR valve 18 when a difference ΔTEGR between the actual opening degree TTegr and the target opening degree Tegracc of the EGR valve 18 exceeds a predetermined value ΔB.
    • 要解决的问题:为了防止EGR发动机的减速和失火,通过提高EGR阀在发动机减速中的关闭响应性而不会给驾驶员带来怠速感。解决方案:EGR装置包括EGR通道 17和设置在EGR通道17中的EGR阀18,以调节EGR通道17中的EGR流量。电子控制单元(ECU)41在发动机1的减速开始之前从打开状态关闭EGR阀18 基于由转速传感器52检测到的发动机转速NE,由加速器传感器27检测出的加速器开度ACC和EGR阀18的实际开度T.egr。特别地,在发动机1的减速期间,ECU 41根据从目标开度图映射的单独检测的发动机转速NE和加速器开度ACC获得EGR阀18的目标开度Tegracc,并开始关闭EGR阀18 在实际开度TTegr与EGR阀18的目标开度Tegrac之间的差值Dgr; TEGR超过预定值& Dgr; B。
    • 6. 发明专利
    • Exhaust gas recirculating device of engine
    • 发动机废气回收装置
    • JP2013194684A
    • 2013-09-30
    • JP2012065355
    • 2012-03-22
    • Aisan Industry Co Ltd愛三工業株式会社Toyota Motor Corpトヨタ自動車株式会社
    • TAKEDA KEISOKATO YUKIYANAKAJIMA KAZUMANOKAWA SHINICHIROIRISAWA YASUYUKIHOKUTO HIROYUKIYOSHIOKA MAMORU
    • F02M25/07
    • Y02T10/121
    • PROBLEM TO BE SOLVED: To reduce a load applied to a first EGR valve when starting its valve opening, even in a timing of becoming a peak in exhaust pressure acting on an EGR passage, on a first EGR valve arranged on a downstream side out of the first EGR valve and a second EGR valve arranged in series in an EGR passage.SOLUTION: An exhaust gas recirculating device includes an EGR passage 17, and a first EGR valve 18 and a second EGR valve 19 arranged in series in the EGR passage 17 for adjusting an EGR flow rate in the EGR passage 17. The first EGR valve 18 is arranged downstream of the second EGR valve 19 in the EGR passage 17. An electronic control unit (ECU) 61 controls the first EGR valve 18 and the second EGR valve 19 in response to an operation state of an engine 1. The ECU 61 starts a valve opening of the second EGR valve 19 after starting the valve opening of the first EGR valve 18 when opening the first EGR valve 18 and the second EGR valve 19 from a valve closing state.
    • 要解决的问题:即使在作用在EGR通道上的排气压力的峰值的时刻,即使在布置在下游侧的第一EGR阀上,减少在启动阀开启时施加到第一EGR阀的负荷 第一EGR阀和在EGR通道中串联布置的第二EGR阀。解决方案:排气再循环装置包括EGR通道17,以及排列在EGR通道17中的第一EGR阀18和第二EGR阀19 用于调节EGR通道17中的EGR流量。第一EGR阀18布置在EGR通道17中的第二EGR阀19的下游。电子控制单元(ECU)61控制第一EGR阀18和第二EGR 阀19响应于发动机1的操作状态。当开启第一EGR阀18和第二EGR阀19时,ECU61启动第一EGR阀18的开阀后开启第二EGR阀19的阀门 从阀关闭状态。
    • 7. 发明专利
    • Control device for internal combustion engine
    • 内燃机控制装置
    • JP2013040564A
    • 2013-02-28
    • JP2011175920
    • 2011-08-11
    • Toyota Motor Corpトヨタ自動車株式会社
    • KUMAGAI NORIAKIYOSHIOKA MAMORU
    • F01N3/20B60K6/24B60K6/445B60W10/06B60W20/00F01N3/24F02D29/02
    • Y02T10/6239Y02T10/6295
    • PROBLEM TO BE SOLVED: To prevent deterioration of emission due to fuel leaked from a fuel injection device after an engine stop of an internal combustion engine, which has an electrically heatable catalyst.SOLUTION: A control device for an internal combustion engine including a fuel injection device for feeding fuel to a suction path or to a combustion chamber is provided with: the electrically heatable catalyst provided in an exhaust path of the internal combustion engine, and in which a carrier configured to generate heat by the supply of power carries a catalyst having an acid function; an estimation means for estimating an amount of fuel to be leaked from the fuel injection at least according to an elapsed time from the stop of the internal combustion engine; and a heating adjustment means for supplying power to heat the electrically heatable catalyst according to the fuel leakage amount estimated by the estimation means after the engine of the internal combustion engine stops, and adjusting such that the greater the amount of fuel leakage gets, the higher the target heating temperature of the electrically heatable catalyst is set.
    • 要解决的问题:为了防止在具有电可加热催化剂的内燃机的发动机停止之后由于燃料喷射装置泄漏的燃料的排放的劣化。 解决方案:一种用于内燃机的控制装置,包括用于将燃料供给到吸入路径或燃烧室的燃料喷射装置,其具有:设置在内燃机的排气路径中的电可加热催化剂,以及 其中构造成通过供电产生热量的载体携带具有酸功能的催化剂; 至少根据从内燃机的停止所经过的时间来估计从燃料喷射泄漏的燃料量的估计装置; 以及加热调节装置,用于根据在内燃机的发动机停止后由估计装置估计的燃料泄漏量来供给电力来加热电可加热催化剂,并且调节使得燃料泄漏量越大越好 设定电可加热催化剂的目标加热温度。 版权所有(C)2013,JPO&INPIT
    • 8. 发明专利
    • Control system of electric heating catalyst
    • 电加热催化剂控制系统
    • JP2012021419A
    • 2012-02-02
    • JP2010158122
    • 2010-07-12
    • Toyota Motor Corpトヨタ自動車株式会社
    • YOSHIOKA MAMORUTAKAGI NAOYAKUMAGAI NORIAKI
    • F01N3/24F01N3/28
    • PROBLEM TO BE SOLVED: To remove a PM more suitably which adheres on an end face of an insulating member installed between a carrier and a case in an EHC when the EHC is used as a three way catalyst.SOLUTION: An air-fuel ratio of exhaust of an internal combustion engine is repeatedly changed into a lean air-fuel ratio and a rich air-fuel ratio, and thereby its average value is maintained in the vicinity of a theoretical air-fuel ratio. While the PM adhering on the end face of the insulating member of the EHC is removed, when a PM adhesion amount is large, the air-fuel ratio during the rich air-fuel ratio is set lower than the case that the PM adhesion amount is small, and furthermore, a period of the rich air-fuel ratio is set shorter or a period of the lean air-fuel ratio is set longer.
    • 要解决的问题:当EHC用作三元催化剂时,更适合地除去安装在EHC中的载体和壳体之间的绝缘构件的端面上的PM。 解决方案:内燃机的排气的空燃比重复变为稀空燃比和浓空燃比,从而将其平均值保持在理论空燃比附近, 燃料比。 当附着在EHC绝缘构件的端面上的PM被去除时,当PM附着量大时,浓空燃比中的空燃比被设定为低于PM附着量为 较小,此外,将浓空燃比的时段设定得较短,或将稀空燃比的期间设定得较长。 版权所有(C)2012,JPO&INPIT
    • 9. 发明专利
    • Control device of internal combustion engine
    • 内燃机控制装置
    • JP2011256766A
    • 2011-12-22
    • JP2010131155
    • 2010-06-08
    • Toyota Motor Corpトヨタ自動車株式会社
    • CHIBA FUMITOYOSHIOKA MAMORUTSUKAKOSHI TAKAHIRO
    • F02D45/00F01P3/20F02D19/08F02N19/10
    • PROBLEM TO BE SOLVED: To provide a control device of an internal combustion engine, which uses a mixed fuel of gasoline and alcohol and improves starting performance at a low temperature.SOLUTION: The control device of the internal combustion engine includes: a heat storage tank 32 for storing warm cooling water (hot water) in a condition of keeping warm while the internal combustion engine 10 is sufficiently warmed up; a water pump for heat storage 30 for supplying the hot water stored in the heat storage tank 32 into a refrigerant passage formed in the internal combustion engine 10; a fuel property sensor 44 for obtaining the alcohol concentration of the mixed fuel; and a controller for performing preheat treatment where the internal combustion engine 10 before starting is warmed up by driving the water pump for heat storage 30 when a request for cold start of the internal combustion engine 10 is issued. The controller is set so that a supply flow rate of the hot water becomes a large quantity as the alcohol concentration is higher. The supply flow rate of the hot water is set to be a large quantity during an initial period of the preheat treatment while the flow rate is set smaller than that in the initial period during the later period.
    • 解决的问题:提供一种使用汽油和酒精的混合燃料并提高低温起动性能的内燃机的控制装置。 解决方案:内燃机的控制装置包括:蓄热箱32,用于在内燃机10充分加热的同时保温的状态下储存温暖的冷却水(热水); 用于将存储在储热箱32中的热水供给到形成在内燃机10中的制冷剂通道的蓄热水30; 用于获得混合燃料的醇浓度的燃料特性传感器44; 以及用于执行预热处理的控制器,其中当内燃机10的冷起动请求被发出时,通过驱动用于储热的水泵30来启动启动之前的内燃机10。 控制器被设定为随着酒精浓度较高,热水的供给流量变大。 在预热处理的初始阶段,将热水的供给流量设定为大量,同时将流量设定为比后期的初始期间的流量小。 版权所有(C)2012,JPO&INPIT
    • 10. 发明专利
    • Electric heating type catalyst
    • 电加热型催化剂
    • JP2011220323A
    • 2011-11-04
    • JP2010287902
    • 2010-12-24
    • Toyota Motor Corpトヨタ自動車株式会社
    • YOSHIOKA MAMORUTAKAGI NAOYAKUMAGAI NORIAKI
    • F01N3/28B01D53/94F01N3/20F01N3/24
    • PROBLEM TO BE SOLVED: To prevent electricity from flowing to a case of an electric heating type catalyst.SOLUTION: The electric heating type catalyst 1 includes: a heating element 4 which is heated by energization; a case 2 which houses the heating element 4; and a mat 3 which is sandwiched between the heating element 4 and the case 2, and insulates electricity. The catalyst further includes: a projection 24 which projects in a direction of the center axis A of the case 2 from an inner circumferential surface of the case 2 further on at least an upstream side than the mat 3; and an insulating layer 6 which is formed on a surface of the projection 24 and in an area from the projection 24 to the mat 3, and insulates electricity.
    • 要解决的问题:为了防止电流流向电加热型催化剂的情况。 电加热型催化剂1包括:通电加热的加热元件4; 容纳加热元件4的壳体2; 以及夹在加热元件4和壳体2之间的垫3,并且电绝缘。 该催化剂还包括:突起24,其从外壳2的内周面向壳体2的中心轴线A方向突出,至少比垫子3的上游侧; 以及绝缘层6,其形成在突起24的表面上并且在从突起24到垫3的区域中,并且使电绝缘。 版权所有(C)2012,JPO&INPIT