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公开(公告)号：JPS61261634A
公开(公告)日：1986-11-19
申请号：JP10150785
申请日：1985-05-15
Applicant: TOYOTA MOTOR CORP
Inventor： SUEMATSU TOSHIO , TAKEDA YUJI , ANZAI KATSUSHI , HARADA OSAMU
Abstract: PURPOSE:To always permit the proper fuel-cut control by learning the set value of the engine load parameter in the case when fuel feed is suspended when a throttle valve is perfectly opened and comparing said learned value with the load parameter actually measured and carrying out fuel cut. CONSTITUTION:An engine parameter detecting means 2 for detecting the prameter related to the load of an engine 1 and a throttle-valve perfect-opening detecting means 4 for detecting the perfect opening region of a throttle valve 3 are provided. The prescribed value of the engine parameter in the case when fuel feed is suspended is learned by a learning means 5 from the engine parameter signals. The prescribed value of the engine parameter learned by the learning means 5 and the engine parameter actually measured by the engine parameter detecting means 2 are compared in a fuel feed suspension means 7, and when the latter becomes over the former, a fuel feeding means 6 is brought into stop, and fuel cut is carried out.
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公开(公告)号：JPS61247867A
公开(公告)日：1986-11-05
申请号：JP8808885
申请日：1985-04-24
Applicant: TOYOTA MOTOR CORP
Inventor： HARADA OSAMU , ANZAI KATSUSHI , TAKEDA YUJI , SUEMATSU TOSHIO
Abstract: PURPOSE:To surely determines whether knocking occurs or not to prevent pre-ignition, by compensating a constant for calculating a reference value which determines the occurrence of knocking, with the use of the output of detection for the voltage of a battery, and by holding the reference value for determination at a fixed value. CONSTITUTION:When the rotational speed of an engine falls in a specific speed range and the voltage of a battery drops in such a condition that its electrical load is turned on, noise generated from an alternator 50 is superposed on the output of detection by a knock sensor 22, and therefore, the value of background becomes excessively large. Accordingly, a process in which a constant K is turned into 0.8XK is carried out to hold a reference for determination at a fixed value which is compared with peak values. Accordingly, even if the value of background becomes excessively large, it is possible to surely determine whether knocking occurs or not, thereby it is possible to prevent the engine from falling into its pre-ignition condition.
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公开(公告)号：JPS61232352A
公开(公告)日：1986-10-16
申请号：JP7467585
申请日：1985-04-09
Applicant: TOYOTA MOTOR CORP
Inventor： TAKEDA YUJI , SUEMATSU TOSHIO , HARADA OSAMU , ANZAI KATSUSHI
Abstract: PURPOSE:To make the increment of a fuel supply performable so properly all the time, by lowering an upper limit of a range performing air-fuel ratio feedback control when cooling water temperature becomes more than the specified value in the case where an internal-combustion engine shifts to a running state at high load or the like. CONSTITUTION:While an internal-combustion engine (a) is running, load and speed of this engine (a) are detected by a running state detecting device (b), and that whether this load and engine speed are included within the specified range or not is judged by a judging device C. And, when YES is judged, in preference to increment control over a fuel supply with high temperature of the engine (a), an air-fuel ratio is feedback-controlled so as to make it the specified air-fuel ratio on the basis of oxygen content in exhaust gas obtainable out of the said detecting device (b). And, when the cooling water temperature detected by the detecting device (b) becomes more than the specified value, each upper limit of the load and engine speed setting the specified range belonging to a judging device (c) is lowered to some extent by a lowering device (e), thereby aiming at the enlargement of a range performing the fuel increment control.
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公开(公告)号：JPS61185678A
公开(公告)日：1986-08-19
申请号：JP2347385
申请日：1985-02-12
Applicant: TOYOTA MOTOR CORP
Inventor： HARADA OSAMU , ANZAI KATSUSHI , TAKEDA YUJI , SUEMATSU TOSHIO
Abstract: PURPOSE:To suppress knocking exceedingly effectively by installing an ignition- timing control means for controlling the ignition timing of an internal-combustion engine towards delayed angle or advanced angle and an ignition-timing delaying means which controls the ignition timing to the delayed angle side. CONSTITUTION:An ignition-timing control means B controls the ignition timing of an internal-combustion engine toward delayed angle or advanced angle by the signal supplied from a knocking detecting means A. An ignition-timing delaying means E is driven by the signal supplied from a sharp acceleration detecting means C and a high-load and high-revolution detecting means D and controls the ignition timing to the delayed-angle side independently of the signal supplied from the knocking detecting means A. Thus, knocking can be suppressed exceedingly effectively.
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公开(公告)号：JPS6198970A
公开(公告)日：1986-05-17
申请号：JP22024084
申请日：1984-10-19
Applicant: Toyota Motor Corp
Inventor： SUEMATSU TOSHIO , TAKEDA YUJI , ANZAI KATSUSHI , HARADA OSAMU
CPC classification number: F02P5/1508 , Y02T10/46
Abstract: PURPOSE:To enable an accurate idle speed control to be continually performed, by continuously obtained the mean value of an air-fuel ratio feedback correction coefficient determined in accordance with an output from an O2 sensor and controlling the ignition timing in accordance with a deviation of the mean value from the air-fuel ratio feedback correction coefficient. CONSTITUTION:When an internal-combustion engine 14 is in operation, an electronic control circuit 34 first calculates a basic fuel injection quantity tau0 in accordance with an intake air quantity Q and an engine speed N obtained by an air flow meter 2 and a rotary angle sensor 32. Next the circuit 34, when the engine is in idling operation with an idle switch 7 turned on, fetches from a RAM an air-fuel ratio feedback correction coefficient and its mean value after the basic ignition timing at idling time for the engine speed N is referred to a map, calculating a correction angle corresponding to a deviation of the both correction coefficient and the mean value. Subsequently, the circuit 34, adding the correction angle to said basic ignition timing and calculating a required ignition advance angle theta, controls an ignitor 28 in accordance with this ignition advance angle theta.
Abstract translation: 目的：通过持续获得根据O2传感器的输出确定的空燃比反馈校正系数的平均值，并根据偏差来控制点火正时，实现连续执行准确的怠速控制 来自空燃比反馈校正系数的平均值。 构成：当内燃机14运转时，电子控制电路34首先根据由空气流量计2得到的进气量Q和发动机转速N计算基本燃料喷射量τ0，旋转角 传感器32.接下来，当发动机处于怠速开关7的空转状态时，电路34从RAM中取出空燃比反馈校正系数及其在空转时的基本点火正时之后的平均值 速度N被称为地图，计算对应于两个校正系数和平均值的偏差的校正角度。 随后，将校正角添加到所述基本点火正时并计算所需的点火提前角θ的电路34根据该点火提前角θ来控制点火器28。
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Patent Agency Ranking
公开(公告)号：JPS6196158A
公开(公告)日：1986-05-14
申请号：JP21786784
申请日：1984-10-17
Applicant: Toyota Motor Corp
Inventor： SUEMATSU TOSHIO , TAKEDA YUJI , ANZAI KATSUSHI , HARADA OSAMU
CPC classification number: F02D41/126 , F02D41/105
Abstract: PURPOSE:To improve drivability after restoration from a fuel cut, by controlling an ashnchronous injection quantity according to a span of time franging from the fuel cut to the restoration, in case of a device which performs asynchronous injection separately from synchronous injection in time of restoration from the fuel cut. CONSTITUTION:In time of car driving, stopping operation of an accelerator pedal 13, when an engine speed N to be detected by a turning angle sensor N in the state that an idle switch 12 is ON goes up beyond the specified value N1, operation of a fuel injection valve 6 is stopped by an electronic braking circuit 20 whereby fuel comes into a state of being cut. Next, with operation of a pedal 3 during a fuel cut, an idle switch 12 is turned to OFF, and the engine speed decrease, coming to N1, and when further it comes to N
Abstract translation: 目的：通过根据从燃料切割到恢复时间的时间间隔控制不间断喷射量来提高燃料切割恢复后的驾驶性能，在恢复时分别进行同步喷射的装置进行异步喷射 从燃油切断。 构成：在车辆行驶时，停止加速踏板13的动作，在空转开关12为ON的状态下，当由转向角传感器N检测的发动机转速N上升超过规定值N1时， 燃料喷射阀6被电子制动回路20停止，由此燃料进入被切断的状态。 接下来，通过在燃料切断期间操作踏板3，怠速开关12变为OFF，并且发动机转速降低到N1，并且当进一步达到N
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公开(公告)号：JPS6193270A
公开(公告)日：1986-05-12
申请号：JP21401484
申请日：1984-10-12
Applicant: Toyota Motor Corp
Inventor： HARADA OSAMU , TAKEDA YUJI , SUEMATSU TOSHIO , ANZAI KATSUSHI
CPC classification number: F02P5/1527 , Y02T10/46
Abstract: PURPOSE:To sufficiently enhance the performance of an engine, by widening and narrowing a low speed side range within a knock control range in accordance with the octane number of fuel so that the spark retardation of ignition timing is compensated in accordance with knocking. CONSTITUTION:At step S4 it is judged whether the fuel is high octane number gasoline or regular gasoline. Through steps S5, S8 it is judged whether the operation range is the knock control range or not. If it is judged to be in the knock control range, the steps S7 and S10 are taken so that the spark advance is subjected to the compensation of spark retardation. Thus, the knock control range which is accordance with the kind of fuel may be set to provide a satisfactory engine performance over the entire operation range of the engine.
Abstract translation: 目的：为了充分提高发动机的性能，通过根据燃料的辛烷值来扩大和缩小爆震控制范围内的低速侧范围，从而根据爆震来补偿点火正时的火花放电。 构成：在步骤S4中，判断燃料是高辛烷值汽油还是普通汽油。 通过步骤S5，S8，判断操作范围是否为爆震控制范围。 如果判断为爆震控制范围，则采取步骤S7和S10，使火花提前进行火花放电的补偿。 因此，可以设定与燃料种类一致的爆震控制范围，以在发动机的整个运行范围内提供令人满意的发动机性能。
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公开(公告)号：JPS6185578A
公开(公告)日：1986-05-01
申请号：JP20603084
申请日：1984-10-01
Applicant: Toyota Motor Corp
Inventor： HARADA OSAMU , FUNATO KAZUHIKO , SUEMATSU TOSHIO , TAKEDA YUJI , ANZAI KATSUSHI
Abstract: PURPOSE:To perform a highly precise judgment with no misjudgment by judging that the fuel being used is not the predetermined fuel if the occurrence time interval of knocking is short when the spark lag correction value is in the first judgment region. CONSTITUTION:A step S26 judges that the spark lag correction value is in the first judgment region, and the content C of a counter is added by '1'. If the time interval is short, it is judged that the used fuel is not the predetermined fuel. When the correction value is in the second judgment region, the process goes through a step 33 from the step 26, the counting of the counter is interrupted, and the content C of the counter is held as it is. Accordingly, the fuel judgment time is shortened, and a highly precise judgment can be performed with no misjudgment.
Abstract translation: 目的：当火花滞后校正值处于第一判断区域时，如果爆震的发生时间间隔短，则通过判断所使用的燃料不是预定燃料来执行高精度判断，而不会误判。 构成：步骤S26判定火花滞后修正值在第一判断区域，计数器的内容C被加1。 如果时间间隔短，则判定所使用的燃料不是预定的燃料。 当校正值处于第二判断区域时，处理从步骤26进入步骤33，计数器的计数被中断，计数器的内容C被原样保持。 因此，燃料判断时间缩短，能够进行高精度的判断而不会产生误判。
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公开(公告)号：JPS6172876A
公开(公告)日：1986-04-14
申请号：JP19623784
申请日：1984-09-19
Applicant: Toyota Motor Corp , Yamaha Motor Co Ltd
Inventor： TAKEDA YUJI , HARADA OSAMU , ANZAI KATSUSHI , SUEMATSU TOSHIO , YOSHIDA TAKUMORI , INOUE TAKASHI
IPC: F02P5/15
CPC classification number: F02P5/1516 , Y02T10/46
Abstract: PURPOSE:To improve an exhaust gas emission control rate in time of steady driving, by controlling the ignition timing of an internal-combustion engine provided with a catalyzer, controlling an emission of exhaust gas, for timing advance on the basis of engine load and speed, when a steady driving state is continues, controlling the ignition timing with a delayed timing advance. CONSTITUTION:In time of engine running, a control circuit 34 first calculates a suction air quantity per engine rotation on the basis of each output signal out of an air flow meter 2 and a turning angle sensor 32, and according to the calculation result, it calculates ignition timing advance and fuel injection time. And, according to the calculated timing advance and fuel injection time, an ignitor 28 and a fuel injection valve 12 both are controlled. At the above- mentioned, the ignition timing advance is one as being found after properly compensating a fundamental ignition timing advance calculated from the engine speed and the suction air quantity per engine rotation, and when a car steady running state is continues to be more than the specified time (for example, 60sec), the ignition timing is made so as to be controlled with a more delayed timing advance than the said ignition timing advance.
Abstract translation: 目的：为了提高稳定驱动时的废气排放控制率，通过控制设置有催化剂的内燃机的点火正时，控制排气的排放，根据发动机负荷和速度进行定时提前 当持续稳定的驱动状态时，以延迟定时提前来控制点火正时。 构成：在发动机运转时，控制电路34首先根据空气流量计2和转向角传感器32的各输出信号，计算每个发动机转速的吸入空气量，根据计算结果 计算点火正时提前和燃料喷射时间。 并且，根据计算出的定时提前和燃料喷射时间，二者都被控制了点火器28和燃料喷射阀12。 在上述情况下，点火正时提前是适当地补偿从发动机转速和每个发动机旋转的吸入空气量计算出的基本点火正时提前量，并且当轿厢稳定行驶状态继续大于 在规定时间（例如60秒）下，使点火正时以比所述点火正时提前更延迟的定时提前进行控制。
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70.发明专利
公开(公告)号：JPS6170141A
公开(公告)日：1986-04-10
申请号：JP19176284
申请日：1984-09-14
Applicant: Toyota Motor Corp
Inventor： ANZAI KATSUSHI , HARADA OSAMU , SUEMATSU TOSHIO , TAKEDA YUJI
CPC classification number: F02D9/02
Abstract: PURPOSE:To prevent both excessive advance of ignition timing and knocking in a system wherein an intake control valve is provided in one of two intake passages by keeping the intake control valve in the opened position when a knock sensor senses a trouble. CONSTITUTION:In an internal combustion engine provided with a knock sensor 35,two intake passages 18A and 18B are provided and an intake control valve 20 is mounted in one 18A of the passages and controlled for opening and closing action in accordance with the operational condition of the engine. It is determined whether or not the knock sensor is operated normally in the basis of signals of the knock sensor 35 which is received by a control circuit 50. If a level of a background signal among the signals of the knock sensor is below a reference value, a trouble of the sensor is determined. the intake control valve 20 will then be fixed in the opened position. Because of such operation, if the knocking action control fails to be performed successfully, an ignition timing may be prevented from advancing excessively.
Abstract translation: 目的：为了防止在爆震传感器感测到故障时，通过将进气控制阀保持在打开位置，在两个进气通道中的一个中设置进气控制阀的系统中过度提前点火正时和爆震。 构成：在设置有爆震传感器35的内燃机中，设置有两个进气通路18A和18B，并且进气控制阀20安装在通道的一个18A中，并且根据操作条件被控制开启和关闭动作 引擎。 基于由控制电路50接收的爆震传感器35的信号，确定爆震传感器是否正常工作。如果爆震传感器的信号中的背景信号的电平低于参考值 确定传感器的故障。 进气控制阀20将被固定在打开位置。 由于这种操作，如果爆震动作控制不能成功地执行，则可以防止点火正时超前。
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