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21. 发明专利

JPH1082339A INJECTION TIMING CONTROL DEVICE FOR ELECTRONICALLY CONTROLLED DIESEL ENGINE 失效
公开(公告)号：JPH1082339A
公开(公告)日：1998-03-31
申请号：JP23698496
申请日：1996-09-06
申请人： TOYOTA MOTOR CORP , DENSO CORP
发明人： ANZAI SHUNSUKE , INABA TAKAYOSHI , SUGIYAMA KOICHI
IPC分类号： F02D1/18 , F02B3/06 , F02D41/06 , F02D41/14 , F02D41/40 , F02M41/12
摘要： PROBLEM TO BE SOLVED: To spark-advance control with favourable responsibility at target injection starting time concerning an injection timing control device of an electronically controlled diesel engine to carry out injection starting timing control by using a hydraulic timer. SOLUTION: This injection timing control device is furnished with a timer piston 28 energized in the timing lag direction by a timer spring 31 and furnished with a timer 26 to control injection starting time by feed-back controlling the timer piston 28 so that real fuel injection starting time AACT matches target injection starting time ATRG as it is feed-back controlled. In this case, an open loop control means to open-loop control the timer piston 28 to a specified spark-advance position and at the time of starting, the timer piston 28 are open-loop controlled to the maximum spark-advance position (AMAX), and the timer piston 28 is feed-back controlled from the point of time when the target injection starting time ATRG exceeds the real fuel injection starting time AACT.

22. 发明专利

JPH10318029A FUEL INJECTION TIMING CONTROL DEVICE FOR DIESEL ENGINE 失效
公开(公告)号：JPH10318029A
公开(公告)日：1998-12-02
申请号：JP12888297
申请日：1997-05-19
申请人： TOYOTA MOTOR CORP , TOYODA AUTOMATIC LOOM WORKS , DENSO CORP
发明人： AMANO NAOKI , ARAKAWA SHINICHI , INABA TAKAYOSHI , SHIBATA MASANORI
IPC分类号： F02D1/18 , F02B3/06 , F02D41/06 , F02D41/20 , F02D41/40 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To prevent deterioration of controllability caused by fluctuation of battery voltage, in a fuel injection timing control device for a diesel engine. SOLUTION: A fuel injection pump 1 is provided with a plunger 12 for forcibly feeding fuel in a high pressure chamber 15 to an injection nozzle 4 by pressurizing to high pressure, a timer device 26 for regulating a fuel injection timing by changing a reciprocating motion timing of the plunger 12, and an electromagnetic spill valve 23 for regulating a fuel injection rate by stopping pressurizing of fuel in the high pressure chamber 15. A TCV 33 arranged on the timer device 26 is current carrying out-controlled by an electronic control device (ECU) 71, fuel pressure in the high pressure chamber 15 is regulated, and thereby, the position of the timer piston 28 in the timer device 26 is changed. When it is judged in the ECU 71 that a diesel engine 2 is in a start condition and voltage of a battery 98 is fluctuated, a current carrying out timing of the TCV 33 is changed to a timing when battery voltage is increased more than a prescribed value.

23. 发明专利

JPH10212996A INJECTION TIMING CONTROL DEVICE FOR DIESEL ENGINE 失效
公开(公告)号：JPH10212996A
公开(公告)日：1998-08-11
申请号：JP1919497
申请日：1997-01-31
申请人： TOYOTA MOTOR CORP , DENSO CORP
发明人： SUGIYAMA TATSUMASA , FUJIMURA TOSHIO , SHIBATA MASANORI , INABA TAKAYOSHI
IPC分类号： F02D1/18 , F02B3/06 , F02D41/14 , F02D41/40
摘要： PROBLEM TO BE SOLVED: To correctly control a fuel injection timing to an optimal injection timing, in an injection timing control device for controlling a fuel injection timing of a diesel engine. SOLUTION: A feed pump 86 is arranged so as to feed fuel into a fuel chamber 92 serving a rotary torque of a crank shaft 66 as a power source. A plunger 118 is arranged to forcibly feed fuel in synchronism with a pump rotary angle θp. A timer device 140 provided with a high pressure chamber 146 communicated with the fuel chamber 92, a low pressure chamber 144 which is held to a determined low pressure, and a timer control valve(TCV) 150 for controlling a conductive condition between both chambers 146, 144, is arranged for changing a relative relation between the pump rotary angle θp and a crank angle θc serving a pressure difference between the high pressure chamber 146 and the low pressure chamber 144. At least inner pressure in the combustion chamber 92 attains prescribed pressure, the TCV 150 is controlled so as to reflect engine speed.

24. 发明专利

JPH10205385A ELECTRONICALLY CONTROLLED DIESEL ENGINE 失效
公开(公告)号：JPH10205385A
公开(公告)日：1998-08-04
申请号：JP1140597
申请日：1997-01-24
申请人： TOYOTA MOTOR CORP , DENSO CORP
发明人： ANZAI SHUNSUKE , INABA TAKAYOSHI , SUGIYAMA KOICHI
IPC分类号： F02D1/02 , F02B3/06 , F02D1/08 , F02D41/40 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To prevent the erroneous crank angle from being detected caused by the pulse cracking phenomenon to be generated caused by opening of a spill valve, concerning an electronically controlled diesel engine provided with the spill valve. SOLUTION: In the case of the engine speed NE is being low, if internal pressure in a pump chamber is steeply decreased with closing of a spill valve, torsion generated on a driving shaft of a fuel pump is steeply released. When a pulsar of a rotational angle sensor is temporarily rotated at high speed with releasing, excess pulses are generated from an electromagnetic pickup sensor. When such the situation is detected (a step 200), the execution of detecting of a chipped signal and the execution of NE calculating are prohibited (a step 202).

25. 发明专利

JP2000291480A ELECTRONICALLYCONTROLLED FUEL INJECTION DEVICE FOR DIESEL ENGINE 失效
公开(公告)号：JP2000291480A
公开(公告)日：2000-10-17
申请号：JP9900499
申请日：1999-04-06
申请人： DENSO CORP , TOYOTA MOTOR CORP
发明人： ABE MASAYUKI , INABA TAKAYOSHI , AMANO NAOKI
IPC分类号： F02D45/00 , F02D41/22 , F02D41/40
摘要： PROBLEM TO BE SOLVED: To provide an injection amount control system, capable of improving the precision of the fuel injection amount without erroneously deciding a pulse crack, even if an increase command of the main injection amount is issued, and a data correcting system for correcting the data when the data required for finding AACT by a pulse crack is corrected. SOLUTION: A pulse crack is generates in pilot spill is to be generated after a prescribed time from a pilot spill valve opening time t2. That is, a pulse crack is generated between (H-I) a pulse signal H to be output after a pulse signal G as a calculation reference of the pilot spill valve opening time t2 and a pulse signal I to be output after it. In an ECU, etpls3 stored as a time internal between H and I in a memory is taken as a deciding value, and the presence or absence of the pulse crack is decided by comparing the time interval between two continuous pulses to be output according to the mean revolution of an engine with etpls3.

26. 发明专利

JP2001214784A ELECTRONICALLY CONTROLLED FUEL INJECTION SYSTEM FOR DIESEL ENGINE 失效
公开(公告)号：JP2001214784A
公开(公告)日：2001-08-10
申请号：JP2000023158
申请日：2000-01-31
申请人： DENSO CORP , TOYOTA MOTOR CORP
发明人： INABA TAKAYOSHI , KAMIYA KENJI , AMANO NAOKI
IPC分类号： F02M59/36 , F02D41/22 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To provide a control system capable of properly correcting a data for calculating the spill valve opening time of the next cylinder even when pulse crack is generated a plurality of times. SOLUTION: After detecting a spill time set signal A, an estimated time esh of the appearance of a spill just-after signal is calculated. Thereafter, the time obtained by adding the estimated time esh to the spill valve opening time t2 is taken as the scheduled time of the appearance of the spill just-after signal, and the times to the pulse signals appearing before and after the scheduled time, or the time from the previous pulse signal to the scheduled time and the time from the scheduled time to this pulse signal are calculated. The pulse signal close to the scheduled time is taken as the spill just-after signal. According to the above processing, even if pulse crack is generated a plurality of times, the spill just-after signal can be detected, and the time interval from the spill time set signal A to the spill just-after signal and the time interval from the spill just-after signal to the following spill just-after signal can be calculated.

27. 发明专利

JP2000291473A FUEL INJECTION CONTROLLER OF INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JP2000291473A
公开(公告)日：2000-10-17
申请号：JP9641899
申请日：1999-04-02
申请人： TOYOTA MOTOR CORP , DENSO CORP
发明人： ITATSU TOSHIRO , AMANO NAOKI , SHIBATA MASANORI , INABA TAKAYOSHI
IPC分类号： F02D1/02 , F02D41/04 , F02D41/20 , F02D41/40 , F02D45/00 , F02M41/12 , F02M51/00 , F02M51/06
摘要： PROBLEM TO BE SOLVED: To improve accuracy of fuel injection by suitably decreasing the effects due to fluctuation of a battery voltage. SOLUTION: A fuel injection pump 10 feeds fuel to a fuel injection nozzle 24, according to electrification to an electromagnetic solenoid 20a of an electromagnetic spill valve 20 and stops feeding according to shut off of energizing. An electronic control unit 30 corrects energization starting timing, on the basis of the instantaneous voltage of a battery source and read-in calculation, when the electrification starting timing to the electromagnetic solenoid 20a is calculated.

28. 发明专利

JP2009052528A Injection-quantity learning device 有权
标题翻译：注射量学习装置
公开(公告)号：JP2009052528A
公开(公告)日：2009-03-12
申请号：JP2007222712
申请日：2007-08-29
申请人： Denso Corp , 株式会社デンソー
发明人： INABA TAKAYOSHI , ASANO MASAHIRO
IPC分类号： F02D45/00 , F02D41/38
CPC分类号： F02D41/2467 , F02D41/1497 , F02D41/2438 , F02D41/3836 , F02D41/402 , F02D2200/0602
摘要： PROBLEM TO BE SOLVED: To provide an injection-quantity learning device surely learning fuel injection quantity in a wide range of rail pressure in a short period of time.
SOLUTION: An ECU calculates the maximum rail pressure settable in a common rail (S102) when non-injection is requested immediately before the injection of fuel into a diesel engine is stopped and a fuel is under injection (S101). The maximum rail pressure is set in consideration of a rail pressure in the common rail immediately before starting the learning, a boosted quantity by a supply pump, and a fuel injection quantity set according to a vehicle speed for suppressing noise. The ECU extracts unlearned rail pressure points in order from the high-pressure side according to the set maximum rail pressure (S103). Thus, the learning of the fuel injection quantity is performed from the maximum high-pressure side of the rail pressure points where learning of the fuel injection quantity is not completed.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种注射量学习装置在短时间内确保在宽范围的轨道压力中学习燃料喷射量。解决方案：ECU在计算停止向柴油发动机的燃料喷射和燃料喷射之前立即请求非喷射时，ECU计算在共轨中可设定的最大轨道压力（S102）（S101）。考虑到立即开始学习之前的共轨中的轨道压力，供给泵的增压量和根据用于抑制噪声的车速设定的燃料喷射量来设定最大轨道压力。 ECU根据设定的最大轨道压力从高压侧依次提取未填充的轨道压力点（S103）。因此，燃料喷射量的学习从燃料喷射量的学习未完成的轨道压力点的最大高压侧进行。版权所有（C）2009，JPO＆INPIT

29. 发明专利

JP2009052498A Injection-quantity learning device 有权
标题翻译：注射量学习装置
公开(公告)号：JP2009052498A
公开(公告)日：2009-03-12
申请号：JP2007221101
申请日：2007-08-28
申请人： Denso Corp , 株式会社デンソー
发明人： INABA TAKAYOSHI , ASANO MASAHIRO
IPC分类号： F02D41/04 , F02D45/00 , F02M37/08
CPC分类号： F02D41/1497 , F02D41/2438 , F02D41/2467 , F02D41/3845 , F02D41/402 , F02D2200/0602 , F02M37/0052
摘要： PROBLEM TO BE SOLVED: To provide an injection-quantity learning device improved in the learning accuracy of fuel injection quantity by stabilizing the driving of a supply pump.
SOLUTION: When the injection quantity of a fuel from an injector is learned, a rail pressure feedback control of a common rail is stopped. Namely, when the injection quantity of the fuel from the injector is learned, the control of a fuel flow by a suction quantity control valve is stopped. Since the flow of the fuel discharged from the supply pump to the common rail is made constant, the variation of a load required for operating the supply pump is reduced. The variation of a load on a diesel engine driving the supply pump is also reduced thereby. Since the variation of the operating load of the diesel engine by the supply pump is reduced, the variation of the rotation of the diesel engine by fuel injection from the injector is accurately detected. The accuracy of detecting the fuel injection quantity according to the variation of rotation of the diesel engine is then improved.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种通过稳定供给泵的驱动来提高燃料喷射量的学习精度的喷射量学习装置。解决方案：当学习来自喷射器的燃料的喷射量时，停止共轨的轨道压力反馈控制。也就是说，当从喷油器喷射燃料的喷射量被学习时，停止通过吸力控制阀控制燃料流量。由于从供给泵排出到共轨的燃料的流量恒定，所以运转供给泵所需的负荷变动减小。驱动供给泵的柴油发动机上的负荷变化也因此降低。由于供给泵的柴油发动机的运转负荷的变化减少，因此能够精确地检测出来自喷射器的燃料喷射的柴油发动机的转动变化。然后提高根据柴油发动机的转动变化检测燃料喷射量的精度。版权所有（C）2009，JPO＆INPIT

30. 发明专利

JP2010024846A Fuel injection control device 有权
标题翻译：燃油喷射控制装置
公开(公告)号：JP2010024846A
公开(公告)日：2010-02-04
申请号：JP2008183690
申请日：2008-07-15
申请人： Denso Corp , 株式会社デンソー
发明人： YAMAMOTO TAKENOBU , INABA TAKAYOSHI
IPC分类号： F02D45/00 , F02D41/12 , F02D41/34 , F02D41/40
CPC分类号： F02D41/2483 , F02D41/2438 , F02D41/2441 , F02D41/247 , F02D41/3076
摘要： PROBLEM TO BE SOLVED: To provide a fuel injection control device detecting abnormality of the injection quantity of a fuel injection valve and accurately calculating the deviation quantity of the actual injection quantity that cannot be corrected relative to a command injection quantity.
SOLUTION: The fuel injection control device judges in temporary diagnosis 200 whether corrected pulse width 210 calculated based on a result of temporary diagnosis injection exceeds limit pulse width 220, 222. The corrected pulse width 210 is a total of learned correction quantity 212 learned in minute injection quantity learning and correction quantity 214 added to the learned correction quantity 212. If the corrected pulse width 210 exceeds the limit pulse width 220, 222, the fuel injection control device calculates difference between the command injection quantity 240 and the actual injection quantity 242 injected from the fuel injection valve by drive signal corrected by the limited pulse width 220, 222 as injection deviation quantity (Q deviation quantity) 250 between the command injection quantity 240 and the actual injection quantity 242 in regular diagnosis 230.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种检测燃料喷射阀的喷射量的异常的燃料喷射控制装置，并且相对于指令喷射量精确地计算不能校正的实际喷射量的偏差量。解决方案：燃料喷射控制装置在临时诊断200中判断基于临时诊断喷射结果计算的校正脉冲宽度210是否超过限制脉冲宽度220,222。校正脉冲宽度210是学习校正量212的总和在已知脉冲宽度210超过极限脉冲宽度220,222的情况下，燃料喷射控制装置算出指令喷射量240与实际喷射量之差通过由限制脉冲宽度220,222校正的驱动信号从燃料喷射阀喷射的量242作为常规诊断230中的指令喷射量240与实际喷射量242之间的喷射偏差量（Q偏差量）250。版权所有（C）2010，JPO＆INPIT

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