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    Leakage diagnosing device for fuel evaporated gas purge system
    1.
    发明授权
    Leakage diagnosing device for fuel evaporated gas purge system 有权
    燃油蒸发气体净化系统泄漏诊断装置

    公开(公告)号：US6148803A

    公开(公告)日：2000-11-21

    申请号：US204141

    申请日：1998-12-03

    申请人： Yoshihiro Majima ,  Takeshi Fujimoto ,  Keiji Wakahara ,  Junya Morikawa ,  Shigenori Isomura ,  Makoto Miwa

    发明人： Yoshihiro Majima ,  Takeshi Fujimoto ,  Keiji Wakahara ,  Junya Morikawa ,  Shigenori Isomura ,  Makoto Miwa

    IPC分类号： F02M25/08 ,  F02M33/00

    CPC分类号： F02M25/0809

    摘要： A leakage diagnosing apparatus for an evaporated gas purge system, which executes purge system leakage diagnosis based on a detected pressure change amount and an introduced pressure which is introduced into a part of the purge system including at least a fuel tank and a canister. The detected pressure change amount is obtained by detecting pressure in the part of the purge system after such part of the purge system is hermetically sealed. Accordingly, the reliability of the leakage diagnosis is improved because an erroneous diagnosis caused by the introduced pressure is prevented. The detected pressure change amount may be compensated based on the introduced pressure into the sealed gas purge system. Accordingly, an erroneous leakage determination is prevented, and the reliability of leakage determination is improved.

    摘要翻译： 一种用于蒸发气体净化系统的泄漏诊断装置，其基于检测到的压力变化量和引入至少包括燃料箱和罐的吹扫系统的一部分的引入压力来执行清洗系统泄漏诊断。 检测到的压力变化量通过在清洗系统的这一部分气密密封之后检测吹扫系统的部分中的压力来获得。 因此，由于引入的压力引起的错误诊断被防止，所以提高了泄漏诊断的可靠性。 检测到的压力变化量可以基于引入到密封气体净化系统中的压力来补偿。 因此，防止了错误的泄漏判定，提高了泄漏判定的可靠性。

    More reliable leakage diagnosis for evaporated gas purge system
    3.
    发明授权
    More reliable leakage diagnosis for evaporated gas purge system 有权
    更可靠的蒸发气体净化系统泄漏诊断

    公开(公告)号：US06192742B1

    公开(公告)日：2001-02-27

    申请号：US09190243

    申请日：1998-11-13

    申请人： Makoto Miwa ,  Yoshihiro Majima

    发明人： Makoto Miwa ,  Yoshihiro Majima

    IPC分类号： G01M304

    CPC分类号： F02M25/0809

    摘要： To perform leak diagnosis, when it is determined (during engine idling) that leakage exists in the purge system air is reintroduced into a purge system. Then, determination of leakage existence is stopped. Accordingly, erroneous diagnosis caused by opening the filler cap during engine idling is prevented, and reliability of leakage diagnosis is improved.

    摘要翻译： 为了执行泄漏诊断，当确定（在发动机空转期间）吹扫系统中存在泄漏时，空气被再次引入吹扫系统。 然后，停止确定泄漏存在。 因此，防止了在发动机怠速期间打开加注口引起的误诊，提高了泄漏诊断的可靠性。

    Fuel supplying apparatus for internal combustion engine
    4.
    发明授权
    Fuel supplying apparatus for internal combustion engine 失效
    内燃机用燃料供给装置

    公开(公告)号：US5586539A

    公开(公告)日：1996-12-24

    申请号：US587447

    申请日：1995-12-01

    申请人： Masao Yonekawa ,  Kazuji Minagawa ,  Kiyotoshi Oi ,  Makoto Miwa ,  Yoshihiro Majima

    发明人： Masao Yonekawa ,  Kazuji Minagawa ,  Kiyotoshi Oi ,  Makoto Miwa ,  Yoshihiro Majima

    IPC分类号： F02M25/08 ,  F02D41/00 ,  F02D41/02 ,  F02D41/30 ,  F02D41/34 ,  F02M37/00 ,  F02M37/08

    CPC分类号： F02D41/3082 ,  F02D41/0042 ,  F02D2200/0606 ,  F02M2037/085

    摘要： A fuel supplying apparatus controls fuel pressure according to engine operating conditions to prevent blow-through of injected fuel into the exhaust system and hyper-vaporization of fuel. When the engine is being started and the fuel temperature is high, or when the engine has just started and the fuel temperature is high, a target fuel pressure is determined according to the fuel temperature. When a predetermined time has elapsed following the starting of the engine, or when the fuel temperature is not high (even if the predetermined time has not elapsed), it is determined whether fuel vapor is being purged from a canister into an intake pipe. The canister traps fuel vapor from a fuel tank. If the fuel purging is being performed, the apparatus determines whether the current engine operation is in a low-load region. If the fuel purging is being performed and the engine operation is in the low-load region, the apparatus computes a target fuel pressure according to the fuel purging conditions. If the fuel purging is not being performed, or if the engine operation is not in the low-load region, the target fuel pressure is determined as a basic target fuel pressure.

    摘要翻译： 燃料供给装置根据发动机运转条件来控制燃料压力，以防止喷射的燃料吹入排气系统，并使燃料高度蒸发。 当发动机起动并且燃料温度高时，或者当发动机刚刚启动并且燃料温度高时，根据燃料温度来确定目标燃料压力。 当在发动机起动之后经过了预定时间时，或者当燃料温度不高时（即使没有经过预定时间），确定是否将燃料蒸气从罐排出到进气管中。 罐从燃料箱捕获燃料蒸气。 如果正在执行燃料净化，则该装置确定当前的发动机运转是否处于低负载区域。 如果正在执行燃料净化并且发动机操作处于低负载区域，则该装置根据燃料吹扫条件来计算目标燃料压力。 如果没有执行燃料净化，或者如果发动机运转不在低负荷区域，则将目标燃料压力确定为基本目标燃料压力。

    Controller of pressure accumulation fuel system
    6.
    发明申请
    Controller of pressure accumulation fuel system 有权
    压力累加燃料系统控制器

    公开(公告)号：US20070101972A1

    公开(公告)日：2007-05-10

    申请号：US11593017

    申请日：2006-11-06

    申请人： Yoshihiro Majima

    发明人： Yoshihiro Majima

    IPC分类号： F02M57/02 ,  F02M59/36

    CPC分类号： F02M47/027 ,  F02D41/3836 ,  F02D41/3872 ,  F02D2200/0602 ,  F02D2200/0606 ,  F02D2250/31 ,  F02M63/0225

    摘要： A common rail fuel injection system has a fuel pump, a common rail, and an injector. The injector injects high-pressure fuel supplied from the common rail into an engine and leaks part of the high-pressure fuel. An electronic control unit (ECU) restricts a heat amount of the leak fuel of the injector based on a remaining amount of the fuel in a fuel tank. At that time, a target value of the fuel pressure in the common rail is changed to a lower value and the restriction of the fuel pressure is performed with the changed target value. Thus, decrease in generation torque of the engine against intension of a driver can be inhibited while protecting components such as the fuel injection valve.

    摘要翻译： 共轨燃料喷射系统具有燃料泵，共轨和喷射器。 喷射器将从共轨供应的高压燃料喷射到发动机中并泄漏部分高压燃料。 电子控制单元（ECU）基于燃料箱中的燃料剩余量限制喷射器的泄漏燃料的热量。 此时，共轨中的燃料压力的目标值变为较低值，并且随着目标值的变化进行燃料压力的限制。 因此，可以在保护诸如燃料喷射阀的部件的同时，抑制发动机反转的驾驶员的发动机转矩的降低。

    Apparatus for controlling catalyst temperature and method for controlling catalyst temperature
    7.
    发明授权
    Apparatus for controlling catalyst temperature and method for controlling catalyst temperature 失效

    公开(公告)号：US06662551B2

    公开(公告)日：2003-12-16

    申请号：US10091556

    申请日：2002-03-08

    申请人： Yoshihiro Majima

    发明人： Yoshihiro Majima

    IPC分类号： F01N300

    CPC分类号： F02D41/083 ,  F02D37/02 ,  F02D41/0245 ,  F02D41/16 ,  F02D2041/026 ,  Y02T10/26

    摘要： A catalyst is warmed up by a rapid heating control that retards ignition timing and increases an intake air amount. Then the warm up is completed or a transmission is shifted to a drive range, the ignition timing is gradually advanced and the intake air amount is gradually decreased. Therefore, an engine speed is smoothly changed from the rapid heating control to the normal control without a torque shock. Additionally, a beginning of the advancing of the ignition timing is delayed by a predetermined delay time relative to a beginning of the decreasing of the intake air amount. The decreasing of the intake air amount prevents undesirable increase of the engine speed caused by the advancing of the ignition timing.

    Catalyst activation control system for engines
    9.
    发明授权
    Catalyst activation control system for engines 有权
    发动机催化剂启动控制系统

    公开(公告)号：US06513319B2

    公开(公告)日：2003-02-04

    申请号：US09873397

    申请日：2001-06-05

    申请人： Masaei Nozawa ,  Sigenori Isomura ,  Yoshihiro Majima

    发明人： Masaei Nozawa ,  Sigenori Isomura ,  Yoshihiro Majima

    IPC分类号： F01N320

    CPC分类号： F02D13/0219 ,  F01L1/34 ,  F01L2201/00 ,  F02D13/0261 ,  F02D41/006 ,  F02D41/024 ,  F02D41/025 ,  F02D41/0255 ,  F02D2013/0292 ,  F02D2041/001 ,  F02M26/01 ,  F02M26/15 ,  F02P5/1502 ,  F02P5/1506 ,  F02P15/10 ,  Y02T10/16 ,  Y02T10/18 ,  Y02T10/26 ,  Y02T10/46 ,  Y02T10/47

    摘要： An engine has variable timing mechanisms, which are controlled in starting an engine to set valve opening overlap of an intake valve and an exhaust valve around 30° CA. In this case, internal EGR is actively conducted and fuel burning velocity within a cylinder becomes relatively slow and unburned fuel within the cylinder is emitted to an exhaust pipe to be post-burned by itself. Temperature of exhaust gas is maintained high and catalyst converters in the cold state may be activated quickly by actively implementing the post-burning within the exhaust pipe. Further, ignition timing is retarded, an air-fuel ratio is controlled at a slightly lean ratio and the exhaust valve is advanced. The effect of raising the temperature of exhaust gas by the post-burning may be realized more reliably by combining each of these controls.

    摘要翻译： 发动机具有可变的定时机构，其在启动发动机时被控制，以将进气门和排气阀的阀开口重叠设置在30°CA附近。 在这种情况下，主动地进行内部EGR，并且气缸内的燃料燃烧速度变得相对缓慢，并且气缸内的未燃烧燃料被排放到排气管以自身后燃烧。 通过积极地在排气管内实施后燃烧，废气温度保持较高，处于冷态的催化剂转化器可以快速启动。 此外，点火正时被延迟，空燃比被控制在稍微偏小的比例并且排气门前进。 可以通过组合这些控制中的每一个来更可靠地实现通过后燃烧提高排气温度的效果。

    Catalyst activation control system for engines
    10.
    发明授权
    Catalyst activation control system for engines 有权
    发动机催化剂启动控制系统

    公开(公告)号：US06266957B1

    公开(公告)日：2001-07-31

    申请号：US09274996

    申请日：1999-03-24

    申请人： Masaei Nozawa ,  Sigenori Isomura ,  Yoshihiro Majima

    发明人： Masaei Nozawa ,  Sigenori Isomura ,  Yoshihiro Majima

    IPC分类号： F01N320

    CPC分类号： F02D13/0219 ,  F01L1/34 ,  F01L2201/00 ,  F02D13/0261 ,  F02D41/006 ,  F02D41/024 ,  F02D41/025 ,  F02D41/0255 ,  F02D2013/0292 ,  F02D2041/001 ,  F02M26/01 ,  F02M26/15 ,  F02P5/1502 ,  F02P5/1506 ,  F02P15/10 ,  Y02T10/16 ,  Y02T10/18 ,  Y02T10/26 ,  Y02T10/46 ,  Y02T10/47

    摘要： An engine variable valve timing mechanism is controlled during engine starting to set valve opening overlap of intake and exhaust valves around 30° CA. In this case, internal EGR is actively conducted, fuel burning velocity within a cylinder becomes relatively slow and unburned fuel within the cylinder is emitted to an exhaust pipe to be post-burned. The temperature of exhaust gas is maintained high and catalyst converters in the cold state may be activated quickly by actively implementing such post-burning within the exhaust pipe. Further, ignition timing is retarded, the air-fuel ratio is controlled to a slightly lean ratio and the exhaust valve is advanced. The effect of raising the temperature of exhaust gas by post-burning may be realized more reliably by combining each of these controls.

    摘要翻译： 在发动机起动期间控制发动机可变气门正时机构，以将进气门和排气门的开阀重叠设置在30°CA附近。 在这种情况下，主动地进行内部EGR，气缸内的燃料燃烧速度变得相对较慢，并且气缸内的未燃烧燃料被排放到要被后燃烧的排气管。 通过在排气管内积极地实施这种后燃烧，废气温度保持较高，处于冷态的催化剂转化器可以快速启动。 此外，点火正时被延迟，空燃比被控制为稍微减速，排气门前进。 通过组合这些控制中的每一个可以更可靠地实现后燃烧提高废气温度的效果。