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公开(公告)号：JPH0379859A
公开(公告)日：1991-04-04
申请号：JP21646089
申请日：1989-08-23
Applicant: MAZDA MOTOR
Inventor： NAKAYAMA TSUTOMU , SHIMODA SHIGEAKI , SHOJI MASATOSHI , TOKUSHIGE HIROSHI
Abstract: PURPOSE:To perform speed change with no shift shock and little clutch load by modifying a speed change pattern according to the difference between the measured value of the net average effective pressure and the predictor of the net average effective pressure at the time of the speed change pattern being set. CONSTITUTION:A speed change control means A controls the speed change of an automatic transmission 1 to be in the speed change stage based on the speed change pattern M preset according to the vehicle running state such as the vehicle speed and engine load. An output measuring means B deducts the unloaded frictional loss average effective pressure from the average effective pressure of an engine 2 detected by a cylinder inner pressure sensor 20 so as to obtain the net average effective pressure. According to the difference between this net average effective pressure and the predictor of the net average effective pressure corresponding to engine output at the time of the speed change pattern M being set, a modifying means C modifies the speed change pattern M so as to correct the speed change timing at the speed change control means A into the optimum state. The speed change with no shift shock and little clutch load can be thus performed accurately.
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公开(公告)号：JPS60195328A
公开(公告)日：1985-10-03
申请号：JP5291284
申请日：1984-03-19
Applicant: Mazda Motor Corp
Inventor： SHIYOUJI MASATOSHI , SHIMODA SHIGEAKI , TANIGUCHI TSUGIO
CPC classification number: F02F1/4214 , F02B27/0221 , F02B27/0252 , F02B27/0273 , F02B27/0289 , Y02T10/146
Abstract: PURPOSE:To secure a high output of power even in a medium-speed range, by installing a pressure wave reflecting chamber in a suction passage at the side of an on-off valve via a valve in addition to one that secures a high output point by means of good use of a pressure wave upon installing the on-off valve in one of the two-system suction passages. CONSTITUTION:Two-system suction passages 11 and 12 are formed with a partition wall 10, then an on-off valve 13 is installed in one of them, and a large capacity chamber 15 is interconnected to the downstream suction passage via a valve 17. At an engine high-speed range, each of suction pressure selector valves 29 and 30 is operated by the output of a control unit 32, opening the on- off valve 13, and a high output of power is secured in good use of a pressure wave at a high-speed specific engine speed. When the valve 17 is opened so as to make the pressure wave utilizable at the medium engine speed range, the pressure wave inside the suction passage 12 is made to be reflected at an opening part of the chamber 15. With this constitution, the high output of power by means of good use of the pressure wave is securable so extensive a range.
Abstract translation: 目的：即使在中速范围内，即使在中速范围内也能确保高输出功率，除了确保高输出点之外，还可以通过一个阀将一个压力波反射室安装在一个开关阀一侧的吸入通道中 通过在将两个系统的抽吸通道中的一个安装开关阀时充分利用压力波。 构成：双系吸入通道11和12形成有分隔壁10，然后将开关阀13安装在其中一个中，并且大容量室15经由阀17与下游吸入通道相互连接。 在发动机高速范围内，每个吸入压力选择阀29和30都通过控制单元32的输出操作，打开关闭阀13，并且充分利用压力确保高输出功率 以高速特定发动机转速波动。 当阀17打开以使得能够在中等发动机转速范围内使用的压力波时，使吸入通道12内的压力波在室15的开口部分反射。由此，高输出 的力量通过良好的使用压力波是可靠的，所以广泛的范围。
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公开(公告)号：JP2573209B2
公开(公告)日：1997-01-22
申请号：JP6584687
申请日：1987-03-23
Applicant: MAZDA MOTOR
Inventor： SHIMODA SHIGEAKI , TOMII TATSUYA , KADOTA TAKASHI
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公开(公告)号：JPH0363656B2
公开(公告)日：1991-10-02
申请号：JP921884
申请日：1984-01-20
Applicant: MAZDA MOTOR
Inventor： IZUMIO MASAHIRO , IIDA MASAMICHI , SHIMODA SHIGEAKI
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公开(公告)号：JPS6368729A
公开(公告)日：1988-03-28
申请号：JP21314086
申请日：1986-09-10
Applicant: MAZDA MOTOR
Inventor： SHIMODA SHIGEAKI , TOMII TATSUYA , SASAKI YASUNORI
Abstract: PURPOSE:To promote the evaporation or atmization of a fuel and to prevent the deterioration of the running performance, by converting either the injection starting time or the injection finishing time to make the fuel injection period in the suction stroke shorter at the returning time of the exhaust gas than at no returning time of it. CONSTITUTION:In a control unit 48 to control the fuel injection by a fuel injection valve 38, an injection amount arithmetic device 48a is provided to compute the basic injection amount depending on the outputs of an airflow meter 30 and a crank angle sensor. And, a correction device 48b give the acceleration correction, the warming up correction, and the like to the basic injection amount is provided. Furthermore, an EGR arithmetic device 48c to compute the exhaust gas returning amount depending on the outputs of a boost sensor 36 and crank sensors. Responding to the exhaust gas returning amount, the fuel injection period from the fuel injection valve 38 is corrected by a fuel injection period correcting device 48d, to be shorter than at the no returning time.
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Patent Agency Ranking
公开(公告)号：JPS62294736A
公开(公告)日：1987-12-22
申请号：JP13879086
申请日：1986-06-14
Applicant: MAZDA MOTOR
Inventor： SHIMODA SHIGEAKI , SASAKI YASUNORI , TOMII TATSUYA
Abstract: PURPOSE:To prevent the generation of a recovery shock with no occurrence of an engine stop, by injecting fuel in a stroke except the intake stroke of an engine when it is recovered from a fuel cut in the deceleration time, when fuel is supplied in the time of an intake stroke. CONSTITUTION:An engine control unit 15 calculates a fuel injection amount from an injector 8 on the basis of detection values of air flow meter 5, crank angle sensor, throttle valve opening sensor 7, water temperature sensor 9, etc., and fuel is injected synchronously with the crank angle sensor when each cylinder is placed in an intake stroke. A throttle valve 6 is fully closed, further when an engine speed is in a predetermined value or more, a deceleration time fuel cut is performed, but when the engine speed decreases to a fuel cut engine speed or less, injection is restarted except in the intake stroke by 360 deg. advancing the ordinary injection timing.
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公开(公告)号：JPH0368213B2
公开(公告)日：1991-10-25
申请号：JP23848485
申请日：1985-10-24
Applicant: MAZDA MOTOR
Inventor： SHIMODA SHIGEAKI , TSUNODA TOSHA , ICHIKAWA KYOSHI , SHOJI MASATOSHI
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公开(公告)号：JPH02204677A
公开(公告)日：1990-08-14
申请号：JP2086889
申请日：1989-02-01
Applicant: MAZDA MOTOR
Inventor： TOKUSHIGE HIROSHI , SHIMODA SHIGEAKI , SHOJI MASATOSHI , NAKAYAMA TSUTOMU
Abstract: PURPOSE:To optimize a shift shock reducing function by compensation a setting retard value, lowering engine power as much as a fixed quantity at time of gear shifting, on the basis of a combustion chamber pressure being detected by a pressure detecting means. CONSTITUTION:A retard value setting means 2 is provided with a retard value necessary for reducing any shift shock against a mounted engine 1, and at time of gear shifting, it advances or delays ignition timing by a timing delay control means 3 on the basis of this setting retard value, lowering the extent of engine (1) power. In this case, actual combustion chamber pressure of the engine 1 is detected by a pressure detecting means 4 at time of vehicle running, and on the basis of this detected value, a compensating means 5 compensates the setting retard value of the retard value setting means 2. Thus, a shift shock reducing function at time of gear shifting is properly securable.
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公开(公告)号：JPS63235630A
公开(公告)日：1988-09-30
申请号：JP6584687
申请日：1987-03-23
Applicant: MAZDA MOTOR
Inventor： SHIMODA SHIGEAKI , TOMII TATSUYA , KADOTA TAKASHI
Abstract: PURPOSE:To improve a fuel consumption characteristic particularly in a high speed zone by reducing the valve opening period of an intake valve at the time of carrying out a constant speed traveling control even in a high speed zone, in a control for varying an intake air charging rate by reducing the valve opening period in a low speed zone while increasing the valve opening period in a high speed zone. CONSTITUTION:A valve driving mechanism 1 has a low speed cam 2 which reduce the valve opening period of an intake valve and a high speed cam 3 which increases the valve opening period and the cam for driving the intake valve is switched by means of an actuator 4. In this case, the actuator 4 is controlled by a controller 5 according to an engine speed information from an engine speed sensor 6 and an operation mode signal indicating whether the automatic control of constant speed traveling is under way or not from a constant speed traveling device 7. That is, the actuator 4 is controlled so as to select the low speed cam 2 when an engine is judged in a low speed zone while to select the high speed cam 3 when judged in a high speed zone, and to select the low speed cam 2 when the engine is in the high speed zone while the constant speed traveling control is under way.
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公开(公告)号：JPS62225745A
公开(公告)日：1987-10-03
申请号：JP6987186
申请日：1986-03-28
Applicant: MAZDA MOTOR
Inventor： SHIMODA SHIGEAKI , TOMII TATSUYA , KADOTA TAKASHI
IPC: F02D41/14 , B60W30/00 , F02D21/08 , F02D29/02 , F02D41/00 , F02D43/00 , F02M25/06 , F02M25/07 , F02P5/15
Abstract: PURPOSE:To aim at reconciling the enhancement of fuel economy and the lowering of exhaust gas temperature with no knocking occurring, by suitably combining the recirculation of exhaust gas and the advance of ignition timing when an engine is driven in a steady state condition at a high rotational speed or in a high load condition. CONSTITUTION:A control unit 17 receives signals from an automatic cruising switch 18, a throttle opening sensor 19, and a rotational speed sensor 20, and delivers a signal for leaning the air fuel ratio to a fuel injection valve 10, a signal for increasing the flow rate of exhaust gas recirculation to an exhaust gas recirculation valve 16 and a signal for compensating the advance of ignition timing to a distributor 12. As a result, the maximum combustion pressure and maximum combustion temperature may be lowered while it is possible to prevent the temperature of exhaust gas from being raised due to after-burning. Accordingly, it is possible to reconcile the enhancement of fuel economy and the lowering of exhaust gas temperature with no knocking occurring.
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