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公开(公告)号：JPS63183231A
公开(公告)日：1988-07-28
申请号：JP1510187
申请日：1987-01-27
Applicant: TOYOTA MOTOR CORP
Inventor： HIROSE KATSUHIKO , NOGUCHI HIROSHI , TANAHASHI TOSHIO , UMEHANA TOYOICHI , ITO TOSHIO , HORII KINGO , EINAGA HIDEO
Abstract: PURPOSE:To perform accurate air-fuel ratio control even in the case a fresh intake blow-through rate makes complicated changes by calculating a fresh intake capture factor from a multi-dimensional map corresponding to an operating condition of an internal combustion engine and adding a compensation to a basic fuel injection rate determined by load and rpm. CONSTITUTION:A 2-cycle internal combustion engine 1 or the like having a great blow-through rate of fresh intake is provided with a means 2 for supplying a required rate of fuel and a means 5 for calculating a fuel supply rate determined by the operating condition of the internal com. bustion engine 1. A means 4 is also provided for storing compensation data for compensating the blow- through of the fresh intake corresponding to multiple combinations of plural operating conditions of the internal combustion engine 1. A means 5 is further provided for calculating the compensation factor suitable for the measured operating conditions of the engine 1 and for correcting the fuel supply rate calculated with the means 3. A means 6 is further provided for forming a fuel supply signal of a corrected amount to be outputted to the means 2.
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公开(公告)号：JPS6312818A
公开(公告)日：1988-01-20
申请号：JP15423086
申请日：1986-07-02
Applicant: TOYOTA MOTOR CORP
Inventor： TANAHASHI TOSHIO , NAKAMURA NORIHIKO , UJIHASHI MICHIAKI , NOGUCHI HIROSHI , ITO TOSHIO , UMEHANA TOYOICHI , HIROSE KATSUHIKO , HORII KINGO
IPC: F02B17/00 , F02B11/00 , F02B23/08 , F02B25/00 , F02B27/02 , F02B31/02 , F02B75/02 , F02B75/18 , F02M25/07
Abstract: PURPOSE:To stratify fresh air and exhaust gas, so as to improve the ignitionability, by setting an exhaust system adapted to control the pressure fluctuation of back pressure of an exhaust port, in light load range of an engine, and setting means which contain a mask, adapted to give a swirl to the exhaust gas blown back to a combustion chamber. CONSTITUTION:In light load range of an engine, an intake air control valve 16 is closed, and on the other hand, an exhaust gas control valve 34 is opened. Then, exhaust valves 31a, 31b are opened according to the descendent motion of a piston 3, to blow the exhaust gas toward exhaust ports 32a, 32b, respectively, and this exhaust gas is blown back to a combustion chamber 2. At this time, a swirl of exhaust gas is formed by the eccentric port 32b and a mask 5, and at the same time, the lower part of the swirl is guided to a slanting recessed part 8 of the top face of the piston 3. On the other hand, fresh air passed through a throttle valve 13 and a supercharger 14, is led slowly into the combustion chamber 2 through an intake valve 21a, and gathered near a sparking plug 4 on the cylinder head 6 side. In this way, the fresh air on the cylinder head 6 side and the exhaust gas on the piston 3 side, are stratified, and consequently, the ignitionability is improved.
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公开(公告)号：JPS6312817A
公开(公告)日：1988-01-20
申请号：JP15422986
申请日：1986-07-02
Applicant: TOYOTA MOTOR CORP
Inventor： TANAHASHI TOSHIO , NAKAMURA NORIHIKO , UJIHASHI MICHIAKI , NOGUCHI HIROSHI , ITO TOSHIO , UMEHANA TOYOICHI , HIROSE KATSUHIKO , HORII KINGO
IPC: F02B17/00 , F02B11/00 , F02B23/08 , F02B25/00 , F02B27/02 , F02B31/02 , F02B75/02 , F02B75/18 , F02M25/07
Abstract: PURPOSE:To stratify fresh air and exhaust gas, so as to improve the ignitionability, by setting an exhaust system adapted to control the pressure fluctuation of back pressure of an exhaust port, in light load range of an engine, and setting means adapted to give a swirl to the exhaust gas blown back to a combustion chamber. CONSTITUTION:In light load range of an engine, an intake air control valve 16 is closed, and on the other hand, an exhaust gas control valve 34 is opened. Then, exhaust valves 31a, 31b are opened according to the descendent motion of a piston 3, to blow the exhaust gas toward exhaust ports 32a, 32b, respectively, and this exhaust gas is blown back to a combustion chamber 2. At this time, a swirl of exhaust gas is formed by the eccentric port 32b and a mask 5, and at the same time, the lower part of the swirl is guided to a slanting recessed part 8 of the top face of the piston 3. On the other hand, fresh air passed through a throttle valve 13 and a supercharger 14, is led slowly into the combustion chamber 2 through an intake valve 21a, and gathered near a sparking plug 4 on the cylinder head 6 side. In this way, the fresh air on the cylinder head 6 side and the exhaust gas on the piston 3 side, are stratified, and consequently,the ignitionability is improved.
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公开(公告)号：JPS62279228A
公开(公告)日：1987-12-04
申请号：JP12024086
申请日：1986-05-27
Applicant: TOYOTA MOTOR CORP
Inventor： HORII KINGO , NAKAMURA NORIHIKO , NOGUCHI HIROSHI , TANAHASHI TOSHIO , UMEHANA TOYOICHI , HIROSE KATSUHIKO
IPC: F02B29/04
Abstract: PURPOSE:To reduce the size of an air-conditioning system by controlling the circulation of air-conditioning refrigerant according to the temperature condition of cooling water when cooling the circulating cooling water for a water-cooled intercooler by means of the air-conditioning refrigerant for a vehicle. CONSTITUTION:High temperature supply air fed from a supercharger 7 is cooled by the water circulating through a heatexchanger 31 in an intercooler 30. The water in the heatexchanger 31 passes through a circulation pump 34 and a radiation heatexchanger 33a and circulates to the heatexchanger 31. The refrigerant for a vehicle air-conditioner passes through a compressor 44, a condenser 48, a solenoid valve 64 and an expansion valve 52 and cooled in a heatexchanger 54 then returns to a compressor 44. A portion of the refrigerant circulates through an expansion valve 58, a solenoid valve 66 and a water cooler 33 for intercooler. According to a supercharged air temperature 77, a controller 70 controls the solenoid valve 66 and the rotation of the circulation pump 34 thus minimizing the circulation of the air-conditioning refrigerant.
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公开(公告)号：JPS6278440A
公开(公告)日：1987-04-10
申请号：JP21617785
申请日：1985-10-01
Applicant: TOYOTA MOTOR CORP
Inventor： ONAKA HIDEMI , SHIBATA YOSHIAKI , HORII KINGO , UMEHANA TOYOICHI
Abstract: PURPOSE:To prevent acceleration response from becoming worse by making compression ratio for a supercharger set at On lower than that set at OFF, and if knocking tends to occur at time of shifting from OFF to ON, setting the supercharger at ON after the compression ratio has been reduced. CONSTITUTION:The above mentioned engine is provided with a mechanical supercharger 3 continuously rotated through an engine 1 and a belt 5 in its suction path 2, and a bypass path 6 provided with a bypass valve 7 is formed around the supercharger 3, and in addition, a variable compression ratio device 10 is mounted facing on a combustion chamber 9. In case of controlling the above engine by a control computer 13, the engine is first judged of its operating under which of heavy, half and light loads, and then the supercharger 3 is set at ON in the case of the heavy load. In this case, if knocking caused by the temperature of suction or water tends to occur, the supercharger 3 is set at ON after the engine 1 has been given a low compression ratio by the variable compression ratio device 10. On the other hand, in the case of the half or light load, the supercharger 3 is set at OFF, and the engine 1 is controlled to increase its compression ratio.
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Patent Agency Ranking
公开(公告)号：JPS61226521A
公开(公告)日：1986-10-08
申请号：JP6662485
申请日：1985-04-01
Applicant: TOYOTA MOTOR CORP
Inventor： HORII KINGO , ONAKA HIDEKI
Abstract: PURPOSE:To prevent a wheel slip caused by a change of torque, by stopping a supercharge to an engine in its low load and low speed range on the basis of detection of the slip in a driving wheel. CONSTITUTION:A supercharge to an engine is started by a supercharge starting decision means 100 on the basis of a predetermined operative condition (load by a detection value in an air flow meter 24, engine sped by a detection value in a distributor 68) of the engine. A slip detecting means 110 detects a slip in a driving wheel on the basis of a detection value by a front wheel speed sensor 70 and a rear wheel speed sensor 72. The supercharge is stopped on the basis of an operative condition, determined corresponding to when no slip is generated, by the first supercharge stopping decision means 120 while on the basis of an operative condition, determined corresponding to when a slip is generated, by the second supercharge stopping decision means 130. The operative condition for stopping the supercharge, when the slip is generated, is set to a lower side with respect to the load and the engine speed than that when no slip is generated.
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公开(公告)号：JPS6119935A
公开(公告)日：1986-01-28
申请号：JP13899384
申请日：1984-07-06
Applicant: Toyota Motor Corp
Inventor： OONAKA HIDEMI , UMEHANA TOYOICHI , SHIBATA YOSHIAKI , HORII KINGO , SATOU YASUSHI , AKIYAMA YUUJIROU
CPC classification number: F02B29/04 , F02B29/0406 , F02D23/005 , Y02T10/144 , Y02T10/146
Abstract: PURPOSE: To prevent the temperature of an engine from rising in a light load operating range as well to prevent noise from generating upon deceleration, by arranging a throttle valve upstream of a supercharger and by arranging a passage bypassing the supercharger downstream of the throttle valve so that the bypass passage is opened and closed in accordance with the operating condition of the engine.
CONSTITUTION: In the case of that the ratio between the amount Q of intake-air and the rotational speed N of an engine is such as Q/N>b even if the rotational speed N is N>a, or N c and the vacuum is higher than (d). The set value (c) of rotational speed is set to be relatively higher than the set value (a).
COPYRIGHT: (C)1986,JPO&JapioAbstract translation: 目的：为了防止发动机的温度在轻负载工作范围内上升，以防止减速时产生噪音，通过在增压器的上游设置节流阀，并且在节流阀下游设置旁通增压器的通道，以便 旁通通道根据发动机的运行状态打开和关闭。 构成：在即使转数N为N> a或N
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公开(公告)号：JPS6119932A
公开(公告)日：1986-01-28
申请号：JP13899784
申请日：1984-07-06
Applicant: Toyota Motor Corp
Inventor： OONAKA HIDEMI , UMEHANA TOYOICHI , SHIBATA YOSHIAKI , HORII KINGO , SATOU YASUSHI
CPC classification number: F02D41/062 , F02B39/12 , F02D41/0007 , Y02T10/144
Abstract: PURPOSE: To make the starting ability of an engine satisfactory, by detecting the starting operation of the engine to forcedly release a clutch so that the rotation speed of cranking is increased by an amount corresponding to a load by a supercharging which is not effective.
CONSTITUTION: An engine starting condition detecting means 6 detects a cranking operation, and when the startion operation is determined, a clutch releasing means 7 operates so that a clutch operating means 5 releases a clutch 3 even if an engine operating condition detecting means 4 determines that it is in the operating range of a supercharger. Therefore, the clutch 3 is disengaged upon starting of the engine so that the supercharger 2 will not be rotated.
COPYRIGHT: (C)1986,JPO&JapioAbstract translation: 目的：为了使发动机的启动能力令人满意，通过检测发动机的启动操作强制释放离合器，使得起动转速增加对应于无效的增压的负载量。 构成：发动机起动条件检测装置6检测起动操作，并且当确定起动操作时，离合器释放装置7操作，使得离合器操作装置5释放离合器3，即使发动机操作条件检测装置4确定 它在增压器的运行范围内。 因此，离合器3在发动机起动时脱离，从而增压器2不会旋转。
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公开(公告)号：JPS6119931A
公开(公告)日：1986-01-28
申请号：JP13899684
申请日：1984-07-06
Applicant: Toyota Motor Corp
Inventor： OONAKA HIDEMI , UMEHANA TOYOICHI , SHIBATA YOSHIAKI , HORII KINGO , SATOU YASUSHI
CPC classification number: F02B39/12
Abstract: PURPOSE:To promote the warm-up ability of an engine while the fuel consumption rate of the engine is maintained to be high, by engaging a clutch always when the resting condition of a vehicle is detected upon low always when the resting condition of a vehicle is detected upon low temperature operation of the engine, so that a supercharger is maintained in its rotating condition irrespective of the rotational speed of the engine. CONSTITUTION:A vehicle resting condition detecting means (a gear shift position sensor, a vehicle speed sensor) 6 detects the resting condition of a vehicle, and a temperature detecting means (an oil temperature sensor, a water temperature sensor) 5 detects temperatures. If a low temperature resting condition determining means 7 determines that the vehicle is resting and the temperature of the engine is low, a clutch releasing means 9 is energized to forcedly maintain the engagement of a clutch 4 irrespective of the operating condition of the engine so that the rotational speed of a supercharger 3 is continued. When the temperature of the engine is not low or when the engine does not rest even if the temperature of the engine is low, a clutch operating means 8 is energized to set the engine in its normal operating condition in which the clutch is operated in accordance with the operating condition of the engine.
Abstract translation: 目的：为了在发动机的燃料消耗率保持较高时提高发动机的预热能力，通过在车辆的静止状态下始终检测到车辆的静止状态时总是将车辆的静止状态始终保持在低位时始终接合离合器 在发动机的低温运转时被检测，使得增压器保持在其旋转状态，而与发动机的转速无关。 构成：车辆静止状态检测装置（换档位置传感器，车速传感器）6检测车辆的静止状态，温度检测单元（油温传感器，水温传感器）5检测温度。 如果低温休息条件确定装置7确定车辆静止并且发动机的温度低，则离合器释放装置9被通电以强制地保持离合器4的接合，而与发动机的操作条件无关，使得 增压器3的转速继续。 当发动机的温度不低或发动机的温度低时发动机不停机时，通过离合器操作机构8通电，将发动机设定为按照惯例操作离合器的正常运转状态 与发动机的运行状态。
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公开(公告)号：JPS6336027A
公开(公告)日：1988-02-16
申请号：JP17662886
申请日：1986-07-29
Applicant: TOYOTA MOTOR CORP
Inventor： UMEHANA TOYOICHI , NAKAMURA NORIHIKO , HORII KINGO
Abstract: PURPOSE:To enable valve timing to be properly set without using any variable valve timing mechanisms in an engine provided with a mechanical supercharger and an inter-cooler by setting the closing position of an intake valve and the opening period of an exhaust valve to the predetermined delay side. CONSTITUTION:In an intake path 12 are arranged an air cleaner 18, an air flow meter 20a, throttle valve 22, a mechanical supercharger 24, an inter-cooler 26 and a fuel injection valve 28 sequentially from the upstream side. Also, a bypass path 38 is formed to bypass the supercharger 24 and the inter-cooler 26, and a bypass controlling valve 40 is interposed in said path 40. In an internal combustion engine thus constituted, the closing period of an intake valve 46 is set later than 70 deg. after the lower dead point, while the opening period of an exhaust valve 48 is set later than 40 deg. before the lower dead point. Thus, fuel consumption is improved in low load while the output is improved in high load.
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