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41. 发明专利

JPS6262219A CONTROLLER FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPS6262219A
公开(公告)日：1987-03-18
申请号：JP20239385
申请日：1985-09-12
申请人： NIPPON DENSO CO
发明人： SATO YOSHIHISA , AKIYAMA SUSUMU , SUGIURA KENGO , KINUGAWA MASUMI , SUZUKI ATSUSHI
IPC分类号： F02D45/00 , F02D41/18 , G01F1/00 , G01F1/68 , G01F1/698 , G01M15/00 , G01M15/04
摘要： PURPOSE:To achieve an engine control, always stable, by arranging an intake measuring signal composed of a pair of digital pulses to set a pseudo leading edge delayed by a specified time as quickly as possible when a pulse leading edge is not detected normally. CONSTITUTION:An ECU20 controls an FF19 to express a power supply time to an intake temperature measuring element 13 by a pulse width and feed it to an output circuit 22 to generate a measuring signal Tout by a pair of pulses with respect to a start pulse Tin. Delayed by a time Te1 from the rising of the signal Tin, a first pulse of a measuring signal falls. Te is within the range of Tm1-Tm2 in terms of solid difference. A second pulse also falls delayed by Te2. An interval Tout1 between the Te1 and Te2 is taken into the ECU20 in the form of intake measuring information to calculate an optimum fuel injection. When the first pulse is not between Tm1 and Tm2, flow rate information is taken in form an interval Tout2 between Te1 delayed by Td from the rising of the signal Tin and the falling Te2 of the second pulse. When the second pulse is not inputted, the missing is judged from a control flag when the max. measuring time range of flow rate and the preceding measuring information is substituted. This arrangement enables the smooth continuation of the engine control.

42. 发明专利

JPS6255516A THERMAL AIR FLOW RATE MEASURING INSTRUMENT 失效
公开(公告)号：JPS6255516A
公开(公告)日：1987-03-11
申请号：JP19532285
申请日：1985-09-04
申请人： NIPPON DENSO CO
发明人： YAMADA TOSHITAKA , MIZUNO CHIAKI , AKIYAMA SUSUMU , SATO YOSHIHISA , SUZUKI ATSUSHI , KINUGAWA MASUMI
IPC分类号： G01F1/68 , G01F1/698
摘要： PURPOSE:To improve an accuracy in measuring an air flow rate by constituting such that a heating voltage is set to a predetermined value from the building-up of the heating voltage. CONSTITUTION:A transistor 17 wherein a heating voltage for a temperature sensing element is ON-OFF-controlled, with a base connected to a ground circuit by a switch element 22, is controlled to an OFF condition. On the other hand, the voltage of a heating power for the temperature sensing element is compared with a reference voltage by a differential amplifier 24 and the output thereof controls the base of the transistor 17 whereby a heating voltage is controlled to a constant value. In this case, the output side of a phase compensating capacitor C provided on the output stage of the amplifier 24 is set to a predetermined potential when the element 22 is ON. Thus, a set voltage is instantaneously built up from a ground potential GRD up to VCC and then falls to a predetermined value with an inclination determined by a through rate to become stable. Therefore, since the heating voltage that is likely to be intermittently supplied to the temperature sensing element is sharply built up and controlled to a constant value, an accuracy in measuring an air flow rate is improved.

43. 发明专利

JPS61126354A Control device of engine 失效
标题翻译：发动机控制装置
公开(公告)号：JPS61126354A
公开(公告)日：1986-06-13
申请号：JP24742284
申请日：1984-11-22
申请人： Nippon Denso Co Ltd
发明人： SATO YOSHIHISA , ITO KATSUNORI , AKIYAMA SUSUMU , INA KATSUHIRO , KINUGAWA MASUMI , SUZUKI ATSUSHI
IPC分类号： F02D41/18 , F02D41/00 , F02D45/00
摘要： PURPOSE: To enable a very high accurate engine control to be stably executed, by providing a means supplying an output signal, generated corresponding to an electrification start signal, to be set as an intake air flow signal for an engine control unit.
CONSTITUTION: An intake pipe 11 sets in its inside a temperature sensing element 12 and an auxiliary temperature sensing element 13. A flip-flop circuit 19 supplies its pulse-state signal as an air flow measuring signal for an engine control unit 20 through an output circuit 21. A control device, controlling the base potential of a transistor 17 by a differential amplifier 23, sets the reference of a voltage condition of heating power supplied to the temperature sensing element 12. In this way, a very high accurate engine control can be executed by enabling a bad influence caused by a noise signal to be eliminated.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：为了能够稳定地执行非常高的准确的发动机控制，通过提供一个将与起动信号对应产生的输出信号的装置设定为用于发动机控制单元的进气流信号。构成：进气管11在其内部设置温度感测元件12和辅助温度感测元件13.触发器电路19通过输出端将输出的脉冲状态信号作为发动机控制单元20的气流测量信号提供控制装置，通过差分放大器23控制晶体管17的基极电位，设定提供给温度检测元件12的加热功率的电压条件的参考。这样，非常高的精确的发动机控制可以可以通过消除由噪声信号引起的不良影响来执行。

44. 发明专利

JPS6119818B2 JPS6119818B2 - 失效
公开(公告)号：JPS6119818B2
公开(公告)日：1986-05-19
申请号：JP2232678
申请日：1978-02-28
申请人： Nippon Denso Co
发明人： SUEISHI MOTOHARU , KINUGAWA MASUMI
IPC分类号： F02D41/34 , F02D33/00 , F02D41/16

45. 发明专利

JPS606038A AIR-FUEL RATIO CONTROLLER 失效
公开(公告)号：JPS606038A
公开(公告)日：1985-01-12
申请号：JP11398383
申请日：1983-06-23
申请人： NIPPON DENSO CO
发明人： NINOMIYA MASAKAZU , OOMORI NORIO , KINUGAWA MASUMI
IPC分类号： F02D41/00 , F02D41/06 , F02D41/14
摘要： PURPOSE:To excellently relieve the load of a power source and to improve starting ability of an engine, by a method wherein a given state, such as during the starting of an engine, during reduction in the voltage of a power source, is detected to stop energization to a heater incorported in an air-fuel ratio sensor. CONSTITUTION:An analogue switch 10 stops energization to each part of a sensor control part 100 according to the operating condition of an engine, and an energization control circuit 11 controls a switch 10. The energization control circuit 11 monitors the presence of an operating signal STA of a starter switch, and the terminal voltage of a battery mounted on a car, the output voltage of a power source part to open the analogue switch 10 during operation of a starter and decrease in a given voltage to stop energization to a heater 5 and a sensor part 4. This prevents reduction in the voltage of a power source through shut off of a load such as the heater 5 when a large amount of a current is needed during the starting of an engine, and permits improvement of starting ability of an engine.

46. 发明专利

JPS59103930A Control method of internal-combustion engine 失效
标题翻译：内燃机控制方法
公开(公告)号：JPS59103930A
公开(公告)日：1984-06-15
申请号：JP21529782
申请日：1982-12-07
申请人： Nippon Denso Co Ltd
发明人： ABE TOMOAKI , KINUGAWA MASUMI , HIROMASA SHIYUNICHIROU
IPC分类号： F02D41/34 , F02D41/18 , F02D45/00 , F02P5/15
CPC分类号： F02D41/187
摘要： PURPOSE: To accurately measure the amount of air, by obtaining a pulsation component from a differentiated value of the output of a hot-wire air flow meter so as to correct the output of the air flow meter, in the case of a method in which a fuel supply amount or ignition timing is controlled in accordance with the output of said hot-wire air flow meter.
CONSTITUTION: A difference of air flow |ΔG| is obtained from an air amount signal after performing its AD conversion and linearization in a routine called at every 4ms. This difference corresponds to a differentiated value of the air amount signal. The difference |ΔG|, being periodically obtained, can be said the differentiated value sampled at random for intake pulsation because the intake pulsation is synchronously generated with rotation. A maximum value ΔGm among those values is allowed to represent the pulsation amplitude. Ignition timing and a fuel supply amount are corrected by the maximum value ΔGm. In this way, an air amount can be accurately measured.
COPYRIGHT: (C)1984,JPO&Japio
摘要翻译：目的：为了精确测量空气量，通过从热丝空气流量计的输出的微分值获得脉动分量，以校正空气流量计的输出，在其中根据所述热线空气流量计的输出来控制燃料供给量或点火正时。构成：在执行AD转换和空调量信号之后，以每4ms为单位的程序，获得空气流量_DELTAG？的差值。该差异对应于空气量信号的微分值。由于进气脉动与旋转同步产生，所以周期性地获得的差分| DELTAG|可以被称为随机取样用于进气脉动的微分值。这些值中的最大值DELTAGm被允许表示脉动幅度。点火正时和燃料供给量通过最大值DELTAGm来校正。以这种方式，可以精确地测量空气量。

47. 发明专利

JPS58174118A CONTROL METHOD OF SUPERCHARGING AIR PUMP IN INTERNAL- COMBUSTION ENGINE 失效
公开(公告)号：JPS58174118A
公开(公告)日：1983-10-13
申请号：JP5693682
申请日：1982-04-06
申请人： NIPPON DENSO CO
发明人： NAKATSUKA KOUKEI , KINUGAWA MASUMI
IPC分类号： F02B33/00 , F02B33/44 , F02D45/00
摘要： PURPOSE:To improve drivability of an engine, by applying a condition of an engine intake air quantity/engine speed (Q/N) of annealing calculation to one of the decisions for air pump operation and inhibiting the air pump operation due to an overshoot at the beginning of acceleration. CONSTITUTION:Each data of an intake air quantity Q of an engine, engine speed N, engine temperature T and other engine parameters is read by an electric controller to calculate Q/N and perform annealing calculation of the Q/N. When the engine temperature is higher than a preset value showing engine warming and the engine speed N is higher than a preset value then the Q/N is larger than a decision value, an air pump operative instruction is generated. In this way, a supercharge control valve 7 is closed, and a magnetic clutch 9 is connected to drive an air pump 8 by the engine and feed supercharged intake air to the engine.

48. 发明专利

JPS55101740A ENGINE SPEED CONTROL METHOD 失效
公开(公告)号：JPS55101740A
公开(公告)日：1980-08-04
申请号：JP857779
申请日：1979-01-26
申请人： NIPPON DENSO CO
发明人： KINUGAWA MASUMI , SUEISHI MOTOHARU
IPC分类号： F02D41/16 , F02D31/00 , F02M3/07 , F02M69/32
摘要： PURPOSE:To achieve a suitable engine revolution speed inffuencing no discomfort to a driver by a method wherein the lumits of control of the target value of idling engine revolution speed and of the controlled variables for intake air quantity or air-fuel feeding volume are made to change according to the operation parameter. CONSTITUTION:A computer 17 is provided with a fuel control unit 20 and an air control unit 60. Said air control unit 60 is connected with a rotation sensor 21, warming up sensor 22, air conditioning switch and brake switch. The deviation of the idle rotation speed from its target value is computed and the controlled variable based on said deviation controlls the time rate of charging an electromagnetic coil 52 of the electromagnetic valve 51 thus to control the opening of an air control valve 30. In this case, limits of control of said target value and the controlled variables are to be so constituted that e.g., according to an operating condition of the foot brake 26 and during the foot brake operation, the target value as well as the least upper value of the control width are designed to be made small.

49. 发明专利

JPS5517629A ENGINE REVOLUTION SPEED CONTROLLER 失效
公开(公告)号：JPS5517629A
公开(公告)日：1980-02-07
申请号：JP8919678
申请日：1978-07-20
申请人： NIPPON DENSO CO
发明人： SUEISHI MOTOHARU , KINUGAWA MASUMI
IPC分类号： F02D41/16 , F02D33/00
摘要： PURPOSE:To control the idling revolution speed of an engine on the basis of such factors as the warmed-up state of the engine and the turned-on or off state of an air conditioner and accurately regulate the revolution speed of the engine through a simple construction without providing plural controllers for separate purposes. CONSTITUTION:An air control valve 30 is provided between air conduits 21, 22, which are installed to bypass a throttle valve 17. The degree of opening of the valve element 35 of the control valve 30 is indirectly regulated by an electromagnetic mechanism 50, the energization of which is controlled by an electronic air controller 60. This controller comprises a D-A converter 100 which receives a signal from a revolution speed sensor 18 to generate a voltage consisting of a voltage proportional to the revolution speed and a saw-toothed voltage synchronized with the revolution of the engine and superposed on the former voltage, a function voltage generator 200 which produces a voltage corresponding to a condition of the engine, a comparator 300 which compares the outputs of the generator 200 and the converter 100 with each other, an integration circuit 400, a first switching circuit 800 and a second switching circuit 900.

50. 发明专利

JPS5462419A ENGINE REVOLUTION SPEED CONTROLLING APPARATUS 失效
公开(公告)号：JPS5462419A
公开(公告)日：1979-05-19
申请号：JP12825477
申请日：1977-10-26
申请人： NIPPON DENSO CO
发明人： SUEISHI MOTOHARU , KINUGAWA MASUMI
IPC分类号： F02D41/06 , F02D33/00 , F02D41/16
摘要： PURPOSE:To correctly control the engine revolution speed by a simple constitution, without necessitating arranging controlling apparatuses for respective purposes, by making it possible to control the idling revolution speed with control parameters such as engine warming state and the ON or OFF state of an air-conditioner. CONSTITUTION:In an air controlling valve 30, the turning of a valve body 35 (in other words, the amount of supplementary air which allows a throttle valve 17 to form bypass) is controlled by the magnitude of the pressure in a chamber 38, and the magnitude of the pressure in the chamber 28 is determined by the time rate during which a pipe 56 for introducing an intake-air negative pressure is open, or the time rate during which an electromagnetic coil 51 is in conduction. The excitation of an electromagnetic mechanism 50 is controlled by an electronic air controlling unit 60. With said electronic air controlling unit 60, are connected a distributor 18, warming sensor 19, and an air conditioning switch 28 which turns ON or OFF a compressor 26 for air conditioner such as car cooler, and an electromagnetic clutch 27 which is connected to the driving shaft of the engine 10.

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