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    • 1. 发明专利
    • Exhaust emission control device for internal combustion engine
    • 用于内燃机的排气排放控制装置
    • JP2006153000A
    • 2006-06-15
    • JP2005171498
    • 2005-06-10
    • Toyota Motor Corpトヨタ自動車株式会社
    • YOSHIZAKI KOJIOGISO MASATO
    • F01N3/20B01D46/42B01D53/94F01N3/02F01N3/08F01N3/24F01N3/28F01N3/36
    • F02D41/028B01D53/9431B01D53/9495F01N3/0233F01N3/0842F01N3/0878F01N3/2093F01N13/009F01N13/011F01N13/107F02B37/00F02D41/1443Y02T10/24
    • PROBLEM TO BE SOLVED: To individually control exhaust gas flow rate flowing in each catalyst in an exhaust emission control device for an internal combustion engine including exhaust gas passage independent from each cylinder group and having a catalyst having NOx absorption capacity arranged in each exhaust gas passage. SOLUTION: This devise is provided with a communication pass keeping mutual communication between parts in upstream side more than each catalyst in a plurality of exhaust gas passages, an upstream side opening/closing valve opening and closing the communication pass, a reducing agent adding valve arranged in a downstream side more than connection section of the communication pass of each exhaust gas passage and in an upstream side more than each catalyst, a flow rate regulating valve arranged in an downstream more than the connecting section of the communication pass of each exhaust gas passage, and a control means for each valve. When NOx absorption capacity of one catalyst of a plurality of the catalysts is regenerated, the control means opens the upstream side opening/closing valve and fully closes the flow rate regulating valve of the exhaust gas passage having one catalyst arranged therein, and operates the reducing agent adding valve to make reducing agent reach one catalyst when actual opening of the flow rate regulating valve is fully closed to regenerate NOx absorption capacity of one catalyst with a small quantity of reducing agent. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了分别控制内燃机排气排放控制装置中的每个催化剂中流动的排气流量,所述排气排放控制装置包括与每个气缸组无关的废气通道,并且具有排列在每个气缸组中的NOx吸收容量的催化剂 排气通道。 解决方案:该设备具有在多个排气通道中的上游侧的部件之间保持相互连通的通信通道,多个排气通道中的每个催化剂,上游侧开/关阀打开和关闭连通通道,还原剂 在每个排气通道的连通通道的连接部分的下游侧并排设置在比每个催化剂多的上游侧的下游侧的流量调节阀,配置在比各催化剂的连通路径的连接部分的下游更多的流量调节阀 废气通道和用于每个阀的控制装置。 当多个催化剂中的一种催化剂的NOx吸收能力再生时,控制装置打开上游侧开闭阀,并且将具有一个催化剂的废气通道的流量调节阀完全关闭, 添加阀门,使流量调节阀的实际开启完全关闭,使还原剂达到一个催化剂,再生少量还原剂催化一个催化剂的NOx吸收能力。 版权所有(C)2006,JPO&NCIPI
    • 3. 发明专利
    • Controller for internal combustion engine
    • 内燃机控制器
    • JP2005248703A
    • 2005-09-15
    • JP2003330073
    • 2003-09-22
    • Toyota Central Res & Dev Lab IncToyota Motor Corpトヨタ自動車株式会社株式会社豊田中央研究所
    • AOYAMA TAROSASAKI SHIZUOYOSHIZAKI KOJIMURATA HIROKIHASHIMOTO YOSHINOBUINAGAKI KAZUHISA
    • F02M25/07F02D21/08F02D41/04F02D41/38F02D45/00
    • PROBLEM TO BE SOLVED: To control a combustion condition of a diesel engine to the optimum condition. SOLUTION: Cylinder pressure sensors 29a to 29d for detecting pressure in a combustion chamber are provided in each cylinder of the diesel engine 1. An electronic control unit (ECU) 20 of the engine calculates a crank angle θmax at which product PV of cylinder pressure and actual cylinder volume becomes the maximum value, calculates a period ΔT from the start of fuel injection to θmax, and feedback-controls opening of an EGR valve 35 for adjusting amount of EGR gas supply to the engine so that the calculated ΔT becomes a target value decided based on current opening of an accelerator and the number of revolutions of the engine. Since ΔT can be computed without increasing computation load of the electronic control unit 20 of the engine, it is possible to control amount of EGR gas (EGR rate) to the optimum value accurately without increasing computation load. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:将柴油发动机的燃烧状况控制在最佳状态。 解决方案:用于检测燃烧室中的压力的​​气缸压力传感器29a至29d设置在柴油发动机1的每个气缸中。发动机的电子控制单元(ECU)20计算曲轴转角θmax, 气缸压力和实际气缸体积成为最大值,计算从燃料喷射开始到θmax的时间段ΔT,并且反馈控制用于调节发动机的EGR气体供应量的EGR阀35的打开,使得计算的ΔT变为 基于加速器的当前打开和发动机的转数确定的目标值。 由于可以在不增加发动机的电子控制单元20的计算负荷的情况下计算ΔT,所以可以在不增加计算负荷的情况下将EGR气体的量(EGR率)精确控制到最佳值。 版权所有(C)2005,JPO&NCIPI
    • 4. 发明专利
    • Exhaust recirculation control device for internal combustion engine
    • 用于内燃机的排气再循环控制装置
    • JP2005127247A
    • 2005-05-19
    • JP2003364850
    • 2003-10-24
    • Toyota Motor Corpトヨタ自動車株式会社
    • HASHIMOTO YOSHINOBUSASAKI SHIZUOYOSHIZAKI KOJIAOYAMA TAROMURATA HIROKIINAGAKI KAZUHISA
    • F02D21/08F02D23/00F02M25/07
    • F02M26/06F02M26/05F02M26/23F02M26/53
    • PROBLEM TO BE SOLVED: To prohibit deterioration of durability of an EGR device, while securing acceleration performance. SOLUTION: In a high pressure side EGR passage connecting an exhaust passage upstream of a turbine to an intake passage downstream of a compressor, a high pressure side EGR control valve is disposed. In a low pressure side EGR passage connecting an exhaust passage downstream of the turbine to an intake passage upstream of the compressor, a low pressure side EGR control valve is disposed. In a first range I where an engine load L is lower than a set load LS(N), the high pressure side EGR control valve is opened, while the low pressure side EGR control valve is closed. In a second range II where the engine load L is higher than the set load LS(N), the high pressure side EGR control valve is closed, while the low pressure side EGR control valve is opened. In a third range III where the engine load L is higher than an upper limit load LU(N), both the high pressure side EGR control valve and the low pressure side EGR control valve are closed. In transition from the first range I to the third range II where quick engine acceleration operation is conducted, the low pressure side EGR control valve is held in a closed state. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:为了防止EGR装置的耐久性劣化,同时确保加速性能。 解决方案:在将涡轮上游的排气通道与压缩机下游的进气通道连接的高压侧EGR通路中,设置有高压侧EGR控制阀。 在将涡轮下游的排气通路与压缩机上游的进气通路连接的低压侧EGR通路中,设置有低压侧EGR控制阀。 在发动机负荷L低于设定负荷LS(N)的第一范围I中,高压侧EGR控制阀打开,而低压侧EGR控制阀关闭。 在发动机负荷L高于设定负荷LS(N)的第二范围II中,高压侧EGR控制阀关闭,而低压侧EGR控制阀打开。 在发动机负荷L高于上限负载LU(N)的第三范围III中,高压侧EGR控制阀和低压侧EGR控制阀均闭合。 在从第一范围I到进行快速发动机加速运转的第三范围II的过渡中,低压侧EGR控制阀保持在关闭状态。 版权所有(C)2005,JPO&NCIPI
    • 5. 发明专利
    • Starting control method for multicylinder internal combustion engine
    • 多层内燃机起动控制方法
    • JP2005120905A
    • 2005-05-12
    • JP2003356501
    • 2003-10-16
    • Toyota Motor Corpトヨタ自動車株式会社
    • HASHIMOTO YOSHINOBUSASAKI SHIZUOYOSHIZAKI KOJIAOYAMA TAROMURATA HIROKIINAGAKI KAZUHISA
    • B60W20/00B60K6/445B60W10/06F02D29/02F02D41/06F02D41/40F02D45/00F02N11/08B60K6/04
    • Y02T10/6239
    • PROBLEM TO BE SOLVED: To provide a fuel injection timing control method for a multicylinder internal combustion engine, allowing quick start of the engine. SOLUTION: At a calculation timing θc in each cylinder, a fuel injection parameter such as an injection timing or an injection amount is calculated. Cylinder pressure Ps at starting cranking and cylinder pressure Pd at a detection timing right after starting cranking are detected for each of the cylinders. In accordance with a change amount of each cylinder pressure, a cylinder is specified which has the earliest fuel injection timing after the detection timing, and a cranking angle θd at the detection timing is determined. When the cranking angle θd at the detection timing exists before the calculation timing θc (a solid line) in view from an intake bottom dead center, fuel injection is performed in order from the specified cylinder. When the cranking angle θd at the detection timing exists after the calculation timing θc (a broken line), fuel injection is performed in order from a cylinder which has a fuel injection timing next to the specified cylinder. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供一种用于多缸内燃机的燃料喷射正时控制方法,其允许发动机的快速启动。 解决方案:在每个气缸中的计算定时θc,计算诸如喷射正时或喷射量的燃料喷射参数。 针对每个气缸检测启动起动后的检测时刻的启动起动时的气缸压力Ps和气缸压力Pd。 根据每个气缸压力的变化量,指定在检测定时之后具有最早燃料喷射正时的气缸,并且确定检测定时处的起动角θd。 当从进气下死点看,在检测定时的起动角度θd存在于计算定时θc(实线)之前的情况下,从指定的气缸开始依次进行燃料喷射。 当在计算定时θc(虚线)之后存在检测定时的起动角θd时,从具有与指定气缸相邻的燃料喷射正时的气缸的顺序执行燃料喷射。 版权所有(C)2005,JPO&NCIPI
    • 7. 发明专利
    • Exhaust emission control device for internal combustion engine
    • 用于内燃机的排气排放控制装置
    • JP2002371901A
    • 2002-12-26
    • JP2001177450
    • 2001-06-12
    • Toyota Motor Corpトヨタ自動車株式会社
    • HASHIMOTO YOSHINOBUGOTO MASAHITOYOSHIZAKI KOJIHIROTA SHINYASASAKI SHIZUO
    • F02D43/00F01N3/02F01N3/08F01N3/28
    • PROBLEM TO BE SOLVED: To provide an exhaust emission control device for an internal combustion engine capable of optimizing exhaust emission control functions of a particulate filter and an NOx catalyst with the usage of a structure wherein the particulate filter for collecting fine particles in the exhaust gas and the NOx catalyst are arranged in series along n exhaust passage. SOLUTION: A filter casing 90 for purifying both of the fine particles and NOx contained in the exhaust gas, and a catalyst casing for reducing and purifying the NOx contained in the exhaust gas are provided in an engine 1 from the upstream to the downstream of an exhaust system 40 thereof. When an amount of the NOx stored in the catalyst casing 100 reaches a predetermine amount, an electronic control device 80 increases an amount of a reducing component in the exhaust gas and forms an exhaust flow passage for directly feeding the enriched exhaust gas to the catalyst casing 100 without passing through the filter casing 90 by driving a passage change-over valve 97.
    • 要解决的问题:提供一种用于内燃机的废气排放控制装置,其能够优化微粒过滤器和NOx催化剂的废气排放控制功能,其结构是使用用于收集废气中的微粒的微粒过滤器 并且NOx催化剂沿着n个排气通道串联排列。 解决方案:一种用于净化废气中所含的细颗粒和NOx的过滤器壳体90以及用于减少和净化废气中所含的NOx的催化剂壳体,其设置在发动机1的上游至下游 排气系统40。 当催化剂壳体100中存储的NOx的量达到预定量时,电子控制装置80增加排气中的还原成分的量,形成用于将浓缩废气直接供给到催化剂壳体的排气流路 100,而不通过过滤器壳体90,通过驱动通道转换阀97。
    • 8. 发明专利
    • Controller of internal combustion engine equipped with variable valve timing mechanism
    • 具有可变阀门时间机构的内燃机控制器
    • JP2007009775A
    • 2007-01-18
    • JP2005190127
    • 2005-06-29
    • Toyota Industries CorpToyota Motor Corpトヨタ自動車株式会社株式会社豊田自動織機
    • YOSHIZAKI KOJISHIMIZU SADANOBUINAGAKI KAZUHISA
    • F02D13/02F02D45/00
    • Y02T10/18
    • PROBLEM TO BE SOLVED: To provide a technology capable of more exactly obtaining the on-off valve timing of a intake valve or exhaust valve in an controller of an internal combustion engine equipped with a variable valve timing mechanism.
      SOLUTION: The internal combustion engine equipped with the variable valve timing mechanism for changing the on-off valve timing of the intake valve and exhaust valve is provided with a pressure detecting means for detecting the pressure in a cylinder, an operation state detecting means for detecting the operation state of the internal combustion engine, and an exhaust valve advanced angle amount detecting means (S104) for detecting the advanced angle amount of the exhaust valve depending on the pressure in the cylinder at the exhaust top dead center when advancing the closing timing of the exhaust valve by the variable valve timing mechanism than the intake top dead center, and delaying the closing timing of the intake valve than the intake top dead center in the predetermined operation state.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种能够更精确地获得装备有可变气门正时机构的内燃机的控制器中的进气门或排气门的开关阀正时的技术。 解决方案:配备有用于改变进气门和排气门的开关阀正时的可变气门正时机构的内燃机设置有用于检测气缸中的压力的​​压力检测装置,操作状态检测 用于检测内燃机的操作状态的装置和排气门提前角量检测装置(S104),用于根据排气上止点的气缸中的压力来检测排气门的提前角量, 通过可变气门正时机构使排气门的关闭正时比进气上止点延迟,并且在预定操作状态下延迟进气门的关闭正时比进气上止点。 版权所有(C)2007,JPO&INPIT
    • 9. 发明专利
    • Motor generator control method in parallel hybrid vehicle
    • 并联混合动力汽车发电机控制方法
    • JP2005110461A
    • 2005-04-21
    • JP2003343879
    • 2003-10-02
    • Toyota Motor Corpトヨタ自動車株式会社
    • MURATA HIROKIHASHIMOTO YOSHINOBUAOYAMA TAROYOSHIZAKI KOJISASAKI SHIZUOINAGAKI KAZUHISA
    • B60W20/00B60K6/485B60K6/54B60L11/14B60W10/08F02D29/02F02D45/00B60K6/04
    • Y02T10/7077
    • PROBLEM TO BE SOLVED: To suppress the change of a driving force by adjusting the driving force to a desired value and by absorbing the change of engine torque, even if change occurs in the engine torque. SOLUTION: This motor generator control method is for a parallel hybrid vehicle provided with an engine that has a cylinder internal pressure sensor and a motor generator that assists power generation by an engine output or the engine output by battery electric power. Based on the detected opening of an accelerator, engine revolutions, and preset demanded torque map, driver-demanding torque is calculated (Steps S10, S11). Using the output value of the cylinder internal pressure sensor, the change of the cylinder internal pressure is detected (Step S12). Based on this detected cylinder internal pressure, the predicted amount of change of the engine torque or the predicted amount of change of the driving force is calculated (Steps S13, S14, S15). According to the predicted amount of change of the engine torque, the assist amount or the regeneration amount of the motor generator is feedback-controlled (Step S16). COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:即使发动机转矩发生变化,为了通过将驱动力调节到期望值并且通过吸收发动机转矩的变化来抑制驱动力的变化。 解决方案:该电动发电机控制方法是用于具有发动机的并联混合动力车辆,该发动机具有气缸内部压力传感器和电动发电机,其通过发动机输出或发动机通过电池电力输出来发电。 基于检测到的加速器的开度,发动机转数和预设的要求扭矩图,计算出驱动器要求转矩(步骤S10,S11)。 使用气缸内部压力传感器的输出值,检测气缸内部压力的变化(步骤S12)。 基于该检测到的气缸内部压力,计算出发动机扭矩的预测变化量或驱动力的预测变化量(步骤S13,S14,S15)。 根据预测的发动机转矩变化量,对电动发电机的辅助量或再生量进行反馈控制(步骤S16)。 版权所有(C)2005,JPO&NCIPI