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. 发明专利

JP2004144052A Theoretical air fuel ratio stratified charge combustion internal combustion engine 有权
公开(公告)号：JP2004144052A
公开(公告)日：2004-05-20
申请号：JP2002312014
申请日：2002-10-28
申请人： Hitachi Car Eng Co Ltd , Hitachi Ltd , 株式会社日立カーエンジニアリング , 株式会社日立製作所
发明人： YAMAGUCHI JUNICHI , ONISHI KOJI , FUJII TAKASHI , FUJIEDA MAMORU , TOKUYASU NOBORU
IPC分类号： F02P13/00 , F01N3/24 , F02B17/00 , F02B23/10 , F02B31/00 , F02B31/02 , F02D13/02 , F02D21/08 , F02D41/02 , F02D43/00 , F02M25/07
CPC分类号： F02D13/0257 , F02B17/005 , F02B2023/106 , F02B2023/108 , F02D21/08 , F02D41/006 , F02D41/3023 , F02D2041/001 , Y02T10/12 , Y02T10/18 , Y02T10/42 , Y02T10/47
摘要： PROBLEM TO BE SOLVED: To prevent deterioration in fuel economy by a rich spike to obtain a high exhaust emission control effect, while reducing pumping loss by stratified charge combustion to improve fuel economy. SOLUTION: An opening/closing timing for an intake valve is shifted by a variable mechanism and EGR gas is made to flow first into a cylinder. An air fuel ratio therefore is always kept in the vicinity of a theoretical air fuel ratio, while reducing the pumping loss by stratifying air-fuel mixture and EGR gas, and excellent combustion can be performed. Since a three-way catalyst can be used, a lean NOx catalyst becomes unnecessary, the deterioration in the fuel economy by the rich spike can be prevented, the cost can be reduced, and the large emission control effect can be obtained. COPYRIGHT: (C)2004,JPO

2. 发明专利

JP2008069690A Exhaust gas recirculation control device 审中-公开
标题翻译：排气回送控制装置
公开(公告)号：JP2008069690A
公开(公告)日：2008-03-27
申请号：JP2006247974
申请日：2006-09-13
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KATOGI KOZO , HOSHIKA HIROAKI , TOKUYASU NOBORU , FUKATSU KATSUAKI
IPC分类号： F02M25/07
CPC分类号： F02D41/2474 , F02D41/222 , F02D2041/0075
摘要： PROBLEM TO BE SOLVED: To provide an exhaust gas recirculation control device capable of controlling an EGR amount by diagnosing an EGR flow sensor and calibrating the outputs of the EGR flow sensor when the EGR flow sensor is contaminated, in the exhaust gas recirculation control device in an internal combustion engine.
SOLUTION: This exhaust gas recirculation device is provided with the EGR flow sensor 301 arranged in an EGR pipe 112 and measuring an EGR flow rate, an EGR valve 107 controlling the EGR flow rate, a target EGR amount calculating means 307 calculating a target EGR amount, and an operation condition determining means 31, and controls an EGR amount based on an output value from the EGR flow sensor 301. When the operation condition determining means 31 determines that an operation condition is in a predetermined steady operation condition, the exhaust gas recirculation control device diagnoses the contamination of the EGR flow sensor by comparing a target EGR amount calculated by a target EGR gas amount calculating means 306 with the EGR flow rate measured by the EGR flow sensor 301.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种废气再循环控制装置，其能够通过诊断EGR流量传感器来控制EGR量，并且当EGR流量传感器被污染时校准EGR流量传感器的输出，在废气再循环内燃机中的控制装置。解决方案：该废气再循环装置设置有配置在EGR管112中并测量EGR流量的EGR流量传感器301，控制EGR流量的EGR阀107，目标EGR量计算装置307，目标EGR量和操作条件确定装置31，并且基于来自EGR流量传感器301的输出值来控制EGR量。当操作条件确定装置31确定操作条件处于预定的稳定操作条件时，废气再循环控制装置通过将由目标EGR气体量计算装置306计算的目标EGR量与由EGR流量传感器301测量的EGR流量进行比较来诊断EGR流量传感器的污染。（C） 2008年，日本特许厅和INPIT

3. 发明专利

JP2007285756A Thermal flow sensor 有权
标题翻译：热流量传感器
公开(公告)号：JP2007285756A
公开(公告)日：2007-11-01
申请号：JP2006110849
申请日：2006-04-13
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SUKEGAWA YOSHIHIRO , TOKUYASU NOBORU , KASHIO KAORI , TERADA DAISUKE
IPC分类号： G01F1/698
CPC分类号： G01F1/69 , G01F1/692 , G01F1/696 , G01F1/6983 , G01F1/699
摘要： PROBLEM TO BE SOLVED: To reduce a flaw detection error when the sensor is dirty regarding the thermal flow sensor. SOLUTION: The measurement element 1 of the thermal flow sensor is arranged in the flow to be measured. The element 1 is composed of the first heating resistor 7 for detecting the flow rate, the second heating resistor 9 for heating the support 5 for the first heating resistor 7, and the current control circuits 101 and 102 for controlling the supply current so as the temperature of the second heating resistor 9 is higher than that of the first heating resistor 7. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了减少传感器对热流量传感器脏污时的探伤误差。解决方案：热流传感器的测量元件1布置在要测量的流中。元件1由用于检测流量的第一加热电阻器7，用于加热第一加热电阻器7的支撑件5的第二加热电阻器9和用于控制电源电流的电流控制电路101和102组成，第二加热电阻器9的温度高于第一加热电阻器7的温度。版权所有（C）2008，JPO＆INPIT

4. 发明专利

JP2007146854A Cylinder injection engine with turbosupercharger and its control method 审中-公开
标题翻译：具有涡轮增压器的气缸喷射发动机及其控制方法
公开(公告)号：JP2007146854A
公开(公告)日：2007-06-14
申请号：JP2007017243
申请日：2007-01-29
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SHIRAISHI TAKUYA , NOGI TOSHIJI , OSUGA MINORU , TOKUYASU NOBORU
IPC分类号： F02D41/02 , F02B37/00 , F02B37/18 , F02D13/02 , F02D23/00 , F02D41/34
CPC分类号： Y02T10/144
摘要： PROBLEM TO BE SOLVED: To provide a cylinder injection engine with a turbosupercharger capable of improving combustion in a high load region of engine torque to improve fuel economy and suppressing generation of smoke in a large load region within a lean burn region. SOLUTION: Scavenging promotion control for scavenging exhaust gas in a combustion chamber by using at least one of pressure in an intake pipe, pressure in the combustion chamber, and pressure in an exhaust pipe, and fuel is injected twice during a period of time from a suction stroke to a compression stroke. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有能够改善发动机扭矩的高负荷区域中的燃烧的涡轮增压器的气缸喷射发动机，以提高燃料经济性并且抑制在稀燃区域内的大负载区域中的烟雾的产生。解决方案：通过使用进气管中的压力，燃烧室中的压力和排气管中的压力中的至少一个以及燃料在燃烧室中清除废气的清除促进控制和燃料在一段时间内被喷射两次从吸入冲程到压缩冲程的时间。版权所有（C）2007，JPO＆INPIT

5. 发明专利

JP2007040310A Control method for cylinder injection internal combustion engine 审中-公开
标题翻译：气缸喷射内燃机的控制方法
公开(公告)号：JP2007040310A
公开(公告)日：2007-02-15
申请号：JP2006305419
申请日：2006-11-10
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TOKUYASU NOBORU , NOGI TOSHIJI , SHIRAISHI TAKUYA
IPC分类号： F02D13/02 , F02B31/00 , F02D21/08 , F02D41/06 , F02D41/34 , F02M25/07
CPC分类号： Y02T10/146
摘要： PROBLEM TO BE SOLVED: To provide a control device for a cylinder injection internal combustion engine capable of effectively reducing HC and NOx exhausted from a combustion chamber during the time from starting the engine to stopping the engine. SOLUTION: The control device comprises an external EGR passage 11 for recirculating part of exhaust gas from an exhaust pipe 10 to an intake pipe 5, an external EGR control valve 12 for controlling the amount of exhaust gas to be recirculated to the external EGR passage 11, and valve timing varying mechanisms 9A, 9B for varying an opening/closing timing of at least one of an intake valve and an exhaust valve. In an operation region requiring exhaust gas recirculation, an ECU 100 always controls the valve timing varying mechanism 9A, 9B to recirculate internal EGR. When an EGR amount required depending on an operated condition is not enough for an internal EGR amount with the valve timing varying mechanisms 9A, 9B, it controls the external EGR control valve 12 to recirculate the exhaust gas while combining internal EGR with external EGR. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于气缸喷射内燃机的控制装置，其能够在从发动机起动到停止发动机的时间期间有效地减少从燃烧室排出的HC和NOx。解决方案：控制装置包括用于将废气的一部分从排气管10再循环到进气管5的外部EGR通道11，用于控制要再循环到外部的废气量的外部EGR控制阀12 EGR通道11和用于改变进气门和排气门中的至少一个的打开/关闭正时的气门正时变化机构9A，9B。在需要排气再循环的操作区域中，ECU 100总是控制气门正时变化机构9A，9B以使内部再循环再循环。当根据操作条件需要的EGR量对于具有气门正时变化机构9A，9B的内部EGR量不足时，它控制外部EGR控制阀12使内部再循环与外部EGR组合。版权所有（C）2007，JPO＆INPIT

6. 发明专利

JP2006316709A Detection device of egr gas flow rate and engine control method 有权
标题翻译： EGR气体流量和发动机控制方法的检测装置
公开(公告)号：JP2006316709A
公开(公告)日：2006-11-24
申请号：JP2005140560
申请日：2005-05-13
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SUKEGAWA YOSHIHIRO , YAMAOKA SHIRO , TOKUYASU NOBORU , IGARASHI SHINYA , FUKATSU KATSUAKI , KADOHIRO TAKASHI , IWAKI HIDEFUMI , ICHIHARA TAKANOBU
IPC分类号： F02M25/07 , F02D21/08 , F02D41/04 , F02D41/38 , F02D43/00
CPC分类号： F02M26/47 , F02M26/05
摘要： PROBLEM TO BE SOLVED: To prevent deterioration of the detection accuracy of a flow sensor caused by dirt and breakage of the sensor due to overheat by a flow sensor provided upstream of a throttle and by providing a flow sensor between a junction of EGR gas and fresh air and an intake pipe collector. SOLUTION: A detection device of an EGR gas flow rate has the flow sensors 9, 10 provided upstream and downstream of the junction of fresh air and EGR gas and obtains EGR gas volume from a flow rate difference between the two sensors. An EGR rate for every cylinder is estimated from the time-series values of EGR gas volume, and injection timing, an injection quantity, a pilot injection ratio and an EGR gas mixing means for every cylinder are controlled based on the estimated rate. The accuracy deterioration and breakage of the flow sensors caused by dirt and overheat can be thus prevented. Discharge of NOx and soot from the engine can be inhibited. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了防止由于由设置在节气门上游的流量传感器过热而导致的由污垢和传感器损坏引起的流量传感器的检测精度的劣化，并且在EGR的接合点之间设置流量传感器气体和新鲜空气和进气管收集器。解决方案：EGR气体流量的检测装置具有设置在新鲜空气和EGR气体的接合处的上游和下游的流量传感器9,10，并且从两个传感器之间的流量差获得EGR气体体积。根据EGR气体体积的时间序列值估计每个气缸的EGR率，并且基于估计的速率来控制每个气缸的喷射正时，喷射量，先导喷射比和EGR气体混合装置。因此可以防止由污垢和过热引起的流量传感器的精度劣化和破裂。可以抑制来自发动机的NOx和烟尘的排放。版权所有（C）2007，JPO＆INPIT

7. 发明专利

JP2006264685A Hybrid automobile 有权
标题翻译：混合动力汽车
公开(公告)号：JP2006264685A
公开(公告)日：2006-10-05
申请号：JP2006079904
申请日：2006-03-23
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NOGI TOSHIJI , SHIRAISHI TAKUYA , OSUGA MINORU , TOKUYASU NOBORU , NAKAYAMA YOKO
IPC分类号： B60W20/00 , B60K6/445 , B60L11/14 , B60W10/06 , F02D29/02 , F02D41/04
CPC分类号： Y02T10/6239 , Y02T10/7077
摘要： PROBLEM TO BE SOLVED: To provide an engine-electric motor hybrid vehicle that is driven at high efficiency without increasing the volumes of a motor and a battery. SOLUTION: A lean-burn high-efficiency driving range is increased to increase the percentage of engine operation at low torque while reducing a battery-based motor driving range. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种在不增加电动机和电池的体积的情况下以高效率驱动的发动机 - 电动马达混合动力车辆。
解决方案：在减少基于电池的电机驱动范围的同时，增加了低燃耗高效率行驶范围，以提高发动机在低转矩下的运行百分比。版权所有（C）2007，JPO＆INPIT

8. 发明专利

JP2005127169A Control method for internal combustion engine 审中-公开
标题翻译：内燃机控制方法
公开(公告)号：JP2005127169A
公开(公告)日：2005-05-19
申请号：JP2003361394
申请日：2003-10-22
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YOSHIDA TAKASHI , NOGI TOSHIJI , TOKUYASU NOBORU
IPC分类号： F02D13/02 , F02D41/06 , F02D41/34 , F02D41/40 , F02D43/00 , F02D45/00 , F02N11/08 , F02N99/00 , F02N17/00
CPC分类号： F02N99/006 , F01L2800/01 , F02D41/065 , F02D41/402 , F02D2041/0095 , F02N11/0814 , F02N19/004 , F02N2200/021 , F02N2200/0808 , F02N2200/0813 , F02N2200/105 , F02N2200/123 , F02N2300/2002
摘要： PROBLEM TO BE SOLVED: To reduce load on a starter when an internal combustion engine is started and increase startability without complicating the system of the internal combustion engine by lowering an actual effective compression ratio according to the state of the internal combustion engine at its start by varying the intake valve opening timing of a cylinder in an expansion stroke.
SOLUTION: The intake valve opening timing is regulated to controllably lower the actual effective compression ratio of the cylinder tin the compression stroke. Also, the actual effective compression ratio of the cylinder in the compression stroke is determined by the position of a piston at the time of start of the internal combustion engine.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了减轻内燃机启动时起动器的负荷，并且通过根据内燃机的状态降低实际的有效压缩比来提高启动性而不会使内燃机的系统复杂化其开始是通过在膨胀冲程中改变气缸的进气门打开正时。
解决方案：进气门打开正时被调节以可控地降低气缸在压缩行程中的实际有效压缩比。此外，压缩冲程中的气缸的实际有效压缩比由内燃机起动时的活塞位置决定。版权所有（C）2005，JPO＆NCIPI

9. 发明专利

JP2003003877A Control method for internal combustion engine 有权
标题翻译：内燃机控制方法
公开(公告)号：JP2003003877A
公开(公告)日：2003-01-08
申请号：JP2002111454
申请日：2002-04-15
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SHIRAISHI TAKUYA , NOGI TOSHIJI , OSUGA MINORU , NAKAYAMA YOKO , TOKUYASU NOBORU
IPC分类号： B60T8/58 , B60T8/1761 , F01L9/04 , F01L13/00 , F02D13/02 , F02D13/04 , F02D17/04 , F02D29/02 , F02D41/12
CPC分类号： Y02T10/125
摘要： PROBLEM TO BE SOLVED: To provide a control method for an internal combustion engine that is capable of assisting a braking force during deceleration of a vehicle by effectively generating a pump loss. SOLUTION: In a non-throttle engine, no vacuum is produced in a combustion chamber and there produced almost no pump loss. This presents a problem of poor engine braking. This invention uses a variable valve train that can arbitrarily control open/close timing and a lift amount of an intake valve and an exhaust valve, thereby effectively producing a pump loss. Specifically, when a brake pedal effort detecting means detects a brake pedal effort and it is detected that an anti-lock brake system is activated, either the intake valve or the exhaust valve is closed. Then, the other valve that is not closed is opened once in a period of time, during which a piston moves from a top dead center to a bottom dead center; namely, during one revolution of the engine. The lift amount of the valve that is opened is controlled to a predetermined value, thereby achieving the foregoing purpose.
摘要翻译：要解决的问题：提供一种内燃机的控制方法，该内燃机能够通过有效地产生泵的损失来辅助车辆的减速期间的制动力。解决方案：在非节流发动机中，在燃烧室中不产生真空，并且几乎不产生泵损耗。这是发动机制动不良的问题。本发明使用可任意控制打开/关闭正时的可变气门机构和进气门和排气门的提升量，从而有效地产生泵损失。具体来说，当制动踏板力检测装置检测到制动踏板的力量并且检测到防抱死制动系统被启动时，进气门或排气门被关闭。然后，未闭合的另一个阀在一段时间内打开一次，在此期间活塞从上死点移动到下止点; 即在发动机转一圈期间。将打开的阀的升程量控制在预定值，从而达到上述目的。

10. 发明专利

JP2009270840A Thermal flowmeter 有权
标题翻译：热流量计
公开(公告)号：JP2009270840A
公开(公告)日：2009-11-19
申请号：JP2008119121
申请日：2008-04-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SUKEGAWA YOSHIHIRO , TOKUYASU NOBORU , HOSHIKA HIROAKI , YAMAOKA SHIRO
IPC分类号： G01F1/696
CPC分类号： G01F1/684 , G01F1/6842 , G01F1/698 , G01F1/699
摘要： PROBLEM TO BE SOLVED: To provide a thermal flow meter capable of accurately detecting a flow rate even when a fluid temperature varies rapidly or when the fluid temperature is high. SOLUTION: A probe PR includes: a first main heating resistor MH1; a second main heating resistor MH2 set at a temperature different from that of the first main heating resistor MH1; and a sub-heating resistor SH for heating supporting bodies of the two main heating resistors MH1, MH2. A CPU of a sensor control circuit SCU finds a fluid temperature by using the two main heating resistors, and finds a fluid flow rate by using at least one of the two main heating resistors. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供即使当流体温度快速变化或当流体温度高时也能够精确地检测流量的热流量计。探针PR包括：第一主发热电阻器MH1; 第二主加热电阻器MH2设定在与第一主发热电阻器MH1的温度不同的温度; 以及用于加热两个主要加热电阻器MH1，MH2的支撑体的副加热电阻器SH。传感器控制电路SCU的CPU通过使用两个主加热电阻器来找到流体温度，并通过使用两个主要加热电阻器中的至少一个来获得流体流量。版权所有（C）2010，JPO＆INPIT

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