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. 发明申请

US20030126907A1 Failure diagnostic system for atmospheric pressure detecting device 有权
标题翻译：大气压力检测装置故障诊断系统
公开(公告)号：US20030126907A1
公开(公告)日：2003-07-10
申请号：US10322738
申请日：2002-12-19
发明人： Satoshi Nagashima , Kenji Saito , Hidetugu Kanao
IPC分类号： G01L027/00
CPC分类号： F02D41/222 , F02D41/185 , F02D2041/228 , F02D2200/0404 , F02D2200/0414 , F02D2200/703 , F02D2200/704 , G01L23/24 , Y02T10/40
摘要： There is provided a failure diagnostic system for an atmospheric pressure detecting device, which is capable of rationally determining whether that device has failed or not and is capable of improving the diagnostic accuracy. The failure diagnostic system is comprised of an atmospheric pressure sensor for detecting an atmospheric pressure of the air taken into an engine; a condition determination section for determining that conditions required for determining that the atmospheric pressure sensor has failed are satisfied if the number of operations, in each of which the engine continuously operates for a predetermined period of time, has exceeded a predetermined number; and a failure diagnosis section for determining that the atmospheric pressure sensor has failed if a variation in the atmospheric pressure over a period of time equivalent to that predetermined number is equal to or less than a predetermined value and the required conditions have been satisfied.
摘要翻译：提供了一种用于大气压检测装置的故障诊断系统，其能够合理地确定该装置是否已经发生故障并且能够提高诊断精度。该故障诊断系统包括用于检测进入发动机的空气的大气压力的大气压力传感器; 如果发动机连续运行预定时间段的操作次数已经超过预定数量，则满足用于确定确定大气压传感器已经发生故障所需的条件的条件确定部分; 以及故障诊断部，用于如果大于等于该预定值的时间段内的大气压力的变化等于或小于预定值并且满足所需条件，则确定大气压传感器已经失败。

2. 发明授权

US5730112A Fuel injection quantity feedback control system of a vehicle 失效
标题翻译：车辆燃油喷射量反馈控制系统
公开(公告)号：US5730112A
公开(公告)日：1998-03-24
申请号：US777127
申请日：1996-12-30
申请人： Cheol-hwa Jeong
发明人： Cheol-hwa Jeong
IPC分类号： F02D1/00 , F02D41/14 , F02D41/18
CPC分类号： F02D41/1483 , F02D41/1406 , F02D41/1482 , F02D41/185 , F02D2041/1409 , F02D2041/1422
摘要： A control system senses air quantity entering an engine, and oxygen in the engine exhaust. A controller controls an amount of fuel injected into the engine according to the sensed oxygen level. As the car changes speed, air flow to the engine changes. The controller converts sensed air flow into an efficiency parameter, and compares it to a setpoint. When an air flow changes and the setpoint is reached, the feedback control operation is suspended, and the controller changes the I-gain in a series of gradually changing steps. The gradual change in I-gain accordingly changes the amount of fuel injected in a series of gradually changing steps.
摘要翻译：控制系统感测进入发动机的空气量和发动机排气中的氧气。控制器根据感测到的氧气水平来控制喷射到发动机中的燃料量。随着车速的变化，空气流向发动机的变化。控制器将感测到的气流转换为效率参数，并将其与设定值进行比较。当空气流量变化并达到设定值时，反馈控制操作被暂停，控制器在一系列逐渐变化的步骤中改变I增益。 I增益的逐渐变化相应地改变一系列逐渐变化的步骤中喷射的燃料量。

3. 发明授权

US5156131A Fuel control apparatus for an engine 失效
标题翻译：发动机燃油控制装置
公开(公告)号：US5156131A
公开(公告)日：1992-10-20
申请号：US721010
申请日：1991-06-26
申请人： Hiroyasu Kisaichi
发明人： Hiroyasu Kisaichi
IPC分类号： F02D41/04 , F02D41/18 , F02D45/00
CPC分类号： F02D41/185 , F02D41/045
摘要： A fuel control apparatus for an engine which comprises means for measuring an air quantity sucked to the engine and means for supplying fuel to the engine in correspondence with the air quantity sucked to the engine, said means for measuring the air quantity sucked to the engine, measuring n times in one stroke of the engine, said means for supplying fuel to the engine, supplying fuel to the engine of which quantity is based on a ratio of change of the measured value of the air quantity.
摘要翻译：一种用于发动机的燃料控制装置，包括用于测量吸入发动机的空气量的装置和与吸入发动机的空气量对应地向发动机供给燃料的装置，所述用于测量吸入发动机的空气量的装置，在发动机的一个行程中测量n次，所述用于向发动机供应燃料的装置，向发动机供应燃料，该量基于空气量的测量值的变化率。

4. 发明授权

US4905155A Fuel supply control apparatus for internal combustion engine 失效
标题翻译：内燃机用燃料供给控制装置
公开(公告)号：US4905155A
公开(公告)日：1990-02-27
申请号：US111256
申请日：1987-10-19
申请人： Yoshiaki Kanno
发明人： Yoshiaki Kanno
IPC分类号： F02D41/04 , F02D41/00 , F02D41/18 , F02D45/00
CPC分类号： F02D41/185
摘要： A fuel supply control apparatus for an internal combustion engine according to the present invention relates to an apparatus, in which the air intake quantity for the internal combustion engine is detected by an air flow sensor and a quantity of a fuel to be supplied to the internal combustion engine is controlled on the basis of an output from said air flow sensor, provided with the air flow sensor and a crank angle sensor for detecting a crank angle of the internal combustion engine and capable of reasonably controlling an air fuel ratio of the internal combustion engine even in the case, where a throttle valve is almost completely opened, by detecting the air intake quantity in a range of a predetermined crank angle interval, determining a resulting value which is proportional to the air intake quantity per one intake stroke of the internal combustion engine, on the basis of the detected value, limiting the resulting value by a predetermined value corrected by parameters of the internal combustion engine, and controlling the quantity of a fuel to be supplied to the internal combustion engine on the basis of the limited resulting value.
摘要翻译：根据本发明的用于内燃机的燃料供应控制装置涉及一种装置，其中通过空气流量传感器检测内燃机的进气量和向内部供应的燃料量基于来自所述空气流量传感器的输出来控制内燃机，所述空气流量传感器设置有空气流量传感器和用于检测内燃机的曲柄角的曲柄角传感器，并且能够合理地控制内燃机的空燃比即使在通过在预定的曲柄角间隔的范围内检测进气量的情况下，在节气门几乎完全打开的情况下，确定与内部的每个进气冲程的进气量成比例的结果值内燃机基于检测值，将所得到的值限制在由内部燃烧器的参数校正的预定值并根据有限的结果值控制供给内燃机的燃料量。

5. 发明授权

US4836016A Method and apparatus for detecting abnormal state in pulse train generating sensor 失效
标题翻译：用于检测脉冲串发生传感器异常状态的方法和装置
公开(公告)号：US4836016A
公开(公告)日：1989-06-06
申请号：US183520
申请日：1988-04-14
申请人： Jiro Nakano , Yoshizo Ito
发明人： Jiro Nakano , Yoshizo Ito
IPC分类号： F02D41/18 , F02D41/22 , G01F1/32 , G01F25/00
CPC分类号： F02D41/222 , F02D41/185 , G01F1/3281 , G01F25/0007 , Y02T10/40
摘要： In an internal combustion engine having a sensor which generates a pulse signal, a time period is measured during which the engine rotational speed is larger than a reference speed, and the time period is reset at every rise or fall of the pulse signal. As a result, when the measured time period is larger than a predetermined time period, an abnormal state signal is generated, thereby detecting an abnormal state of the sensor.
摘要翻译：在具有产生脉冲信号的传感器的内燃机中，测量发动机转速大于基准速度的时间段，并且在脉冲信号的每个上升或下降期间复位该时间段。结果，当测量时间段大于预定时间段时，产生异常状态信号，从而检测传感器的异常状态。

6. 发明授权

US4721087A Fuel supply control apparatus for internal combustion engine 失效
标题翻译：内燃机用燃料供给控制装置
公开(公告)号：US4721087A
公开(公告)日：1988-01-26
申请号：US29609
申请日：1987-03-24
申请人： Yoshiaki Kanno , Katsuya Nakamoto , Jiro Sumitani
发明人： Yoshiaki Kanno , Katsuya Nakamoto , Jiro Sumitani
IPC分类号： F02D41/00 , F02D41/04 , F02D41/08 , F02D41/18 , F02D41/34 , F02D45/00
CPC分类号： F02D41/045 , F02D41/08 , F02D41/185
摘要： A fuel supply control apparatus for an internal combustion engine, which, when an air quantity detected at a predetermined crank angle of the internal combustion engine is represented by Qa and the (n-1)th air intake quantity and the next (n)th air intake quantity of the internal combustion engine at the predetermined crank angles thereof by Qe(n-1) and Qe(n) respectively, judges the optimum fuel supply quantity of the internal combustion engine by an equation: Qe(n)=K.multidot.Qe(n-1)+(1-K).multidot.Qa with filtering using the filter constant K, and which varies the filter constant K corresponding to an operating condition of the internal combustion engine, for example reduces K during idling, so that the fuel supply quantity can be controlled most suitably during idling and loaded operation.
摘要翻译：一种用于内燃机的燃料供应控制装置，当以内燃机的预定曲柄角检测到的空气量由Qa和第（n-1）个进气量和下一个（n）内燃机在其预定的曲柄角处的进气量分别为Qe（n-1）和Qe（n），通过以下等式来判定内燃机的最佳燃料供给量：Qe（n）= KxQe（ n-1）+（1-K）×Qa，其使用滤波常数K进行滤波，并且其变化对应于内燃机的运行状态的滤波器常数K，例如在空转期间减小K，使得燃料供给量可以在空转和加载操作期间最合适地控制。

7. 发明授权

US4459847A Vortex shedding device 失效
标题翻译：涡旋脱落装置
公开(公告)号：US4459847A
公开(公告)日：1984-07-17
申请号：US322656
申请日：1981-11-18
申请人： Toru Kita
发明人： Toru Kita
IPC分类号： F02D41/18 , G01F1/32 , G01P5/01 , G01P5/12
CPC分类号： F02D41/185 , G01F1/3272 , G01P5/01 , G01P5/12
摘要： A vortex shedding device for use in measuring air flow rate into an internal combustion engine includes a duct provided therein with an element for forming vortices in air flowing through the duct. A pair of hot wires is located in the duct which are alternately exposed to vortices generated by the vortex forming element. The hot wires are associated with an electric circuit which detects variations in the resistances of the hot wires and determines the frequency at which vortices are generated in air flowing past the vortex forming element. The electric circuit contains a vortex detector for each of the hot wires so that even if one of the hot wires is broken, a pulse signal is still provided during steady operation of the engine.
摘要翻译：用于测量进入内燃机的空气流量的涡流脱落装置包括其中设置有用于在流过管道的空气中形成涡流的元件的管道。一对热丝位于管道中，交替地暴露于由涡流形成元件产生的涡流。热线与检测热丝电阻变化的电路相关联，并确定在流过涡流形成元件的空气中产生涡流的频率。电路包含用于每个热丝的涡流检测器，使得即使其中一根热丝断裂，仍然在发动机的稳定运行期间提供脉冲信号。

8. 发明授权

US4433663A Electronically controlled fuel injection device 失效
标题翻译：电控燃油喷射装置
公开(公告)号：US4433663A
公开(公告)日：1984-02-28
申请号：US328545
申请日：1981-12-03
申请人： Yoshiaki Asayama
发明人： Yoshiaki Asayama
IPC分类号： F02D41/08 , F02D41/18 , F02D41/34 , G01F1/32 , B63H11/08
CPC分类号： G01F1/3209 , F02D41/185
摘要： Disclosed is an electronically controlled fuel injection device for an internal combustion engine, in which the Strouhal number is established at a prescribed value to achieve stable idling of the engine. This has not been possible in the prior art because at idling speeds, the injection of fuel into the engine synchronously with the Karman vortex frequency produced an extremely low injection frequency, at which it was not possible to maintain a stable idle.
摘要翻译： PCT No.PCT / JP81 / 00097 Sec。 371日期1981年12月21日 102（e）日期1981年12月21日PCT提交1981年4月23日PCT公布。公开号WO81 / 03523 日期为1981年12月10日。公开是用于内燃机的电子控制燃料喷射装置，其中Strouhal号被建立在规定值以实现发动机的稳定空转。这在现有技术中是不可能的，因为在空转速度下，与卡曼涡流频率同步地向发动机喷射燃料产生非常低的喷射频率，在该频率下不能维持稳定的空转。

9. 发明授权

US4269157A Fuel injection system 失效
标题翻译：燃油喷射系统
公开(公告)号：US4269157A
公开(公告)日：1981-05-26
申请号：US50164
申请日：1979-06-20
申请人： Takeshi Fujishiro
发明人： Takeshi Fujishiro
IPC分类号： F02D41/18 , G01F1/05 , G01F1/32 , G01P5/01 , F02B3/00
CPC分类号： G01F1/05 , F02D41/185 , G01F1/3209 , G01F1/329 , G01P5/01
摘要： A fuel injection system is disclosed for use in an internal combustion engine. The system comprises at least one fuel injection valve, a flow sensor responsive to an intake air flow for developing at its output a pulse signal having a frequency corresponding to the intake air flow, and drive means for actuating the fuel injection valve for a predetermined period of time every time a pulse signal is applied thereto from the flow sensor. The amount of fuel to be injected is controlled by the frequency of fuel injection per unit time.
摘要翻译：公开了一种用于内燃机的燃料喷射系统。该系统包括至少一个燃料喷射阀，响应于进气流量的流量传感器，用于在其输出端产生具有对应于进气流量的频率的脉冲信号;以及驱动装置，用于在预定时段内致动燃料喷射阀每当从流量传感器向其施加脉冲信号时。要喷射的燃料量由单位时间的燃料喷射频率控制。

10. 发明授权

US07647765B2 Secondary airflow system for engine exhaust emission diagnostics 有权
标题翻译：用于发动机废气排放诊断的二次气流系统
公开(公告)号：US07647765B2
公开(公告)日：2010-01-19
申请号：US11551596
申请日：2006-10-20
申请人： Brent Sealy , Jeff Doering , Michael Cullen , David Wright , Paul Pietrzyk
发明人： Brent Sealy , Jeff Doering , Michael Cullen , David Wright , Paul Pietrzyk
IPC分类号： F01N3/00
CPC分类号： F01N3/22 , F01N3/32 , F01N11/00 , F01N2550/14 , F01N2560/07 , F02D41/185 , Y02T10/20 , Y02T10/47
摘要： In one example, a system for an engine having an intake system and an exhaust system is described. The system comprises: an airflow sensor coupled to the intake system; an air pump having at least an inlet side and an outlet side, said inlet side having a first coupling to the intake system downstream of said airflow sensor, said outlet side having a second coupling to the exhaust system; and a controller coupled to the engine, said controller, during operation, identifying whether degradation has occurred to at least one of said first and second couplings, and providing an indication of said identified degradation. Various other examples are also disclosed.
摘要翻译：在一个示例中，描述了具有进气系统和排气系统的发动机系统。该系统包括：耦合到进气系统的气流传感器; 至少具有入口侧和出口侧的空气泵，所述入口侧具有与所述气流传感器下游的进气系统的第一联接，所述出口侧具有与所述排气系统的第二联接; 以及控制器，其耦合到所述发动机，所述控制器在操作期间，识别所述第一和第二耦合中的至少一个是否已经发生劣化，以及提供所述识别的退化的指示。还公开了各种其它实例。

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