公开(公告)号：JPS61192813A

公开(公告)日：1986-08-27

申请号：JP3140185

申请日：1985-02-21

Applicant: TOYOTA MOTOR CORP

Inventor： UMEHANA TOYOICHI ,  ONAKA HIDEMI

IPC: F02B33/00

Abstract: PURPOSE:To improve the supercharge efficiency particlarly at low temperature and improve operation performance by providing a control means for varying the operation of a supercharger into strong or weak state and controlling said control means according to the output of a warming-state detecting means. CONSTITUTION:A supercharger 14 for a Roots pump, etc. revolved through a transmission means such as belt 50 by the output of a crankshaft 52 is installed into the suction pipe 2 of an internal-combustion engine, and a bypass control valve 56 as the control means for varying the operation of the supercharger 14 into strong or weak state is installed into a bypass passage 54 installed so as to make a detour around the supercharger 14. The opening degree of the control valve 56 is set so as to increase according to the rise of the temperatrure T of the cooling-water which is detected by a water- temperature sensor 80, and said control valve 56 is electric-conduction-controlled through a duty-ratio control circuit 57 controlled by a control circuit 70. Therefore, when the engine is at low temperature, the supercharge efficiency is improved by closing the control valve 56, and the operation performance at low temperature can be improved.

公开(公告)号：JPS61190133A

公开(公告)日：1986-08-23

申请号：JP2928485

申请日：1985-02-19

Applicant: TOYOTA MOTOR CORP

Inventor： UMEHANA TOYOICHI

IPC: F02D23/00 ,  F02B33/00 ,  F02D33/00 ,  F02M69/32

Abstract: PURPOSE:To improve responsibility and fuel consumption ratio by connecting one end of a bypass passage to an intake pipe between a throttle valve and an air flow meter and the other end to the pipe on the lower side of a supercharger. CONSTITUTION:A supercharger 14 of a machine room is installed on the lower side of a throttle valve 12. One end of a bypass passage 54 installed with an idle speed control valve 56 is connected to an intake pipe between the throttle valve 12 and an air flow meter 72 and the other end is connected to the pipe on the lower side of the supercharger 14. A check valve 58 prevent inverse flow of the air in supercharging is provided on the bypass passage 54. Thus, responsibility is improved and pump loss is prevented, then fuel consumption ratio in idling can be improved.

公开(公告)号：JPS61187543A

公开(公告)日：1986-08-21

申请号：JP2647485

申请日：1985-02-15

Applicant: TOYOTA MOTOR CORP

Inventor： SHIBATA YOSHIAKI ,  UMEHANA TOYOICHI ,  ONAKA HIDEMI

IPC: F02B33/00 ,  F02D13/02 ,  F02D23/00

Abstract: PURPOSE:To prevent the discharge of the uncombusted fuel from an exhaust port by prolonging the overlap period from the start of the opening of a suction valve to the closing of an exhaust valve and carrying-out fuel injection after the closing of the exhaust valve, when a supercharger is driven. CONSTITUTION:In high loading, a selector valve 45 is controlled by an electronic control part 50 so that the atmospheric pressure is introduced into an actuator 40. Then, the inside of a negative-pressure chamber 43 becomes equal to the atmospheric pressure, and a bypass valve 39 is urged by a spring 44 to close a bypass passage 38, and a supercharger 70 performs supercharge. In this case, a variable valve-timing mechanism 60 is controlled by the electronic control part 50, and cams 21 and 22 are relatively revolution-shifted with respect to the cam shafts 61 and 62, and the opening and closing timing of an intake valve 17 and an exhaust valve 18 is varied. Then, in high loading, the valve opening timing of the suction valve 17 is relatively advanced, and the valve opening timing of the exhaust valve 18 is relatively delayed, and fuel injection is carried-out after the closing of the exhaust valve 18.

公开(公告)号：JPS61169641A

公开(公告)日：1986-07-31

申请号：JP917385

申请日：1985-01-23

Applicant: TOYOTA MOTOR CORP

Inventor： UMEHANA TOYOICHI ,  ONAKA HIDEMI

IPC: F02D43/00 ,  F01L1/34 ,  F02D13/02 ,  F02P5/15 ,  F02P5/152 ,  F02P5/153

Abstract: PURPOSE:To correct the control center of an ignition timing to the center of a control range and to improve fuel consumption and prevent the occurrence of transient knocking, by a method wherein, when the control center of the ignition timing is displaced from the center of a control range to the delay side, delay correction is applied on a valve timing. CONSTITUTION:Lead angle control or delay angle control is effected on the ignition timing of an internal-combustion engine 2 by a knocking control device 1 by means of a signal from a knocking sensor 1', and this prevents the occurrence of knocking. In this device, a valve timing control means 3 is provided for controlling the valve timing of the variable valve timing mechanism of the internal-combustion engine 2. Additionally,, a detecting means 5 is provided for detecting that an ignition timing controlled by the knocking control device 1 is regulated closer to the angle of delay side than a given value. The valve timing control means 3 is controlled by a valve timing delay setting means 6 so that the ignition time is adjusted to a valve timing on the angle of delay side by means of a signal from the detecting means 5.

公开(公告)号：JPS61167139A

公开(公告)日：1986-07-28

申请号：JP734785

申请日：1985-01-21

Applicant: TOYOTA MOTOR CORP

Inventor： UMEHANA TOYOICHI ,  ONAKA HIDEMI

IPC: F02D43/00 ,  F01L1/34 ,  F02D13/02 ,  F02P5/15 ,  F02P5/152 ,  F02P5/153

Abstract: PURPOSE:To improve the fuel consumption rate without generating knocking by installing a means for setting an ignition-timing control means so that the ignition-timing on the advance-angle side is obtained by the signal supplied from a knock-sensor level detecting means. CONSTITUTION:A knocking detection sensor 1 is arranged on the body 2 of an internal-combustion engine. A detection means 5 detects that the output of the knocking detection sensor 1 reduces in comparison with a prescribed value. A delay-angle setting means 6 sets a valve-timing control means by the signal supplied from the detection means 5 so that the valve timing on the delay-angle side can be obtained. An ignition-timing advance-angle setting means 7 sets an ignition-timing control means 3 by the signal supplied from the detection means 5 so that the ignition-timing on the advance-angle side is obtained. Thus, the fuel consumption rate can be improved without generating knocking.

公开(公告)号：JPS6123829A

公开(公告)日：1986-02-01

申请号：JP14136484

申请日：1984-07-10

Applicant: Toyota Motor Corp

Inventor： ONAKA HIDEMI ,  UMEHANA TOYOICHI ,  SHIBATA YOSHIAKI ,  HORII KINGO ,  SATO YASUSHI

IPC: F02B33/00 ,  F02B39/12

CPC classification number: F02B39/12

Abstract: PURPOSE:To improve durability in a supercharger, by holding down heat load as the higher in engine temperature the lower in a rate of operating time of the supercharger, while preventing knocking and overheating from occurring. CONSTITUTION:A suction air quantity Q and an engine speed N are detected by a driving condition detectig device 5, while engine temperature is detected by an engine high temperature state detecting device 7, and when it is judged as high temperature, a setting value changing device 8 changes the setting condition at a time when a clutch 4 is selected from release to engagement so as to cause a supercharging range to be narrowed. Therefore, a clutch operating device 6 operates so as to reduce a time rate for engagement of the clutch 4 in time of engine high temperature.

Abstract translation: 目的：为了提高增压器的耐久性，通过在发动机温度越高时抑制热负荷，增压器的运转时间越短，同时防止发生爆震和过热。 构成：由发动机高温状态检测装置7检测发动机温度的同时，由驱动条件检测装置5检测吸入空气量Q和发动机转速N.当判断为高温时，设定值变化 装置8在离合器4从释放选择到接合时改变设定条件，从而使增压范围变窄。 因此，离合器操作装置6操作，以便在发动机高温时减少离合器4的接合时间。

公开(公告)号：JPS6119930A

公开(公告)日：1986-01-28

申请号：JP13899584

申请日：1984-07-06

Applicant: Toyota Motor Corp

Inventor： OONAKA HIDEMI ,  UMEHANA TOYOICHI ,  SHIBATA YOSHIAKI ,  HORII KINGO ,  SATOU YASUSHI

IPC: F02B33/00 ,  F02B39/12

CPC classification number: F02B39/12

Abstract: PURPOSE:To eliminate shocks upon engagement of a clutch and as well to prevent the durability of the clutch from deteriorating, by setting the supercharging range in which the clutch is engaged, in a high rotational speed range upon extremely low temperature operation of an engine. CONSTITUTION:An operating condition detecting means 6 detects the amount Q of intake-air and the rotational speed N of an engine. Meanwhile a temperature detecting means 8 detects the temperature of cooling water and the temperature of lubrication oil, and judgement is made such that extremely low temperature operation should be taken when the temperature of water is below 0 deg.C or the temperature oil is below 0 deg.C. or when both are satisfied, and a setting value changing means 9 selects the set value of ratio of the intake-air amount and the rotational speed, which is larger than a normal value, thereby the range of a supercharger 60 in which a clutch operating means 7 is operated may be set to be narrower.

Abstract translation: 目的：为了消除离合器接合时的冲击，并且通过在发动机的极低温度运转时，通过将离合器接合的增压范围设定在高转速范围内，防止离合器的耐久性劣化。 构成：操作条件检测装置6检测发动机的进气量Q和转速N. 同时，温度检测装置8检测冷却水的温度和润滑油的温度，并且判断当水的温度低于0℃或温度油低于0时应当采取极低的温度操作 ℃ 或者当两者均满足时，设定值变更单元9选择大于通常值的吸气量与转速的比值的设定值，从而选择离合器运转的增压器60的范围 手段7操作可以设定得更窄。

公开(公告)号：JPS59176410A

公开(公告)日：1984-10-05

申请号：JP4969283

申请日：1983-03-26

Applicant: Toyota Motor Corp

Inventor： NAKAMURA NORIHIKO ,  UMEHANA TOYOICHI ,  SHIBATA YOSHIAKI

IPC: F01L1/34 ,  F01L1/344 ,  F01L1/352

CPC classification number: F01L1/34403 ,  F01L1/34 ,  F01L1/352 ,  F01L2201/00 ,  F02D2041/001

Abstract: PURPOSE:To prevent deviation from regularity and realize a precise control by correcting a control means on a specific operational condition for the captioned control device which performs a multistage control of valve timing by means of a step motor. CONSTITUTION:Valve timing is controlled through moving roller bearings 44, 46 in slits 42, 40, formed on an outer sleeve 36 driven by means of a crankshaft 10 and an inner sleeve 38 connected to a cam shaft 18, by means of a stop motor 50 according to operational condition of an engine. Required valve timing is determined by means of an engine operational condition detection means 600, and whether or not an operational condition is appropriate for performing initialization of valve timing is decided by means of a decision means. In case of performing initialization, a mobile body 48 is once pressed to a stopper 36a or 50a and, through rotating by several steps, moved to a position of initialization slightly separated from the stopper to perform it. Correction of a control means 606 is performed in every initialization.

Abstract translation: 目的：为了防止偏离规律，通过对通过步进电机执行气门正时的多级控制的字幕控制装置的特定操作条件下的控制装置进行校正来实现精确控制。 构成：通过在通过曲轴10驱动的外套筒36和连接到凸轮轴18的内套筒38的狭缝42,44中的移动滚子轴承44,46控制气门正时，借助于止动马达 50根据发动机的运行状况。 所需的气门正时通过发动机运转状况检测装置600来确定，并且通过决定装置决定操作状态是否适于执行气门正时的初始化。 在执行初始化的情况下，移动体48一旦被按压到止动器36a或50a，并且通过几步旋转，移动到与止动器稍微分离的初始化位置以执行它。 在每次初始化中执行控制装置606的校正。

公开(公告)号：JPS59153909A

公开(公告)日：1984-09-01

申请号：JP2707283

申请日：1983-02-22

Applicant: Toyota Motor Corp

Inventor： NAKAMURA NORIHIKO ,  UMEHANA TOYOICHI ,  SHIBATA YOSHIAKI

IPC: F01L1/34 ,  F01L1/344 ,  F01L1/352

CPC classification number: F01L1/352 ,  F01L1/34 ,  F01L1/34403 ,  F01L2201/00 ,  F02D2041/001

Abstract: PURPOSE:To prevent vibration in a device for controlling the phase between a crank shaft side sleeve and a cam shaft side sleeve with the use of a step motor, by energizing two winding phases to switch the timing and as well by energizing one winding phase to hold the motor. CONSTITUTION:The control of opening and closing of valves are such that bearings 44, 46 are moved by a step motor 50 in slits 40, 42 which are formed in a sleeve 38 driven by a crank shaft 10 and a sleeve 36 driving a cam shaft 18. A pulse motor 50 has two winding phases 200, 400 both of which are simultaneously energized upon switching of the timing to suppress vibration upon step rotation. Further by carrying out the energizing of one phase the motor is stably held. By intermittently issuing hold signals, consumption power upon holding may be saved.

Abstract translation: 目的：为了防止在使用步进电动机控制曲轴侧套筒和凸轮轴侧套筒之间的相位的装置中的振动，通过激励两个绕组相位来切换正时以及通过将一个绕组相位通电 握住电机。 构成：阀的打开和关闭的控制使得轴承44,46由步进电动机50移动到狭缝40,42中，狭缝40,42形成在由曲柄轴10驱动的套筒38中，套筒36驱动凸轮轴 脉冲电动机50具有两个绕组相200,400，两个绕组相200,400在切换正时以同步地通电以抑制步进旋转时的振动。 此外，通过进行一相通电，电动机被稳定地保持。 通过间歇发出保持信号，可以节省保持时的消耗电力。

公开(公告)号：JPS59119007A

公开(公告)日：1984-07-10

申请号：JP22593482

申请日：1982-12-24

Applicant: Toyota Motor Corp

Inventor： NAKAMURA NORIHIKO ,  UMEHANA TOYOICHI ,  SHIBATA YOSHIAKI

IPC: F01L13/00 ,  F01L1/34 ,  F02D13/02

CPC classification number: F01L1/34

Abstract: PURPOSE:To enable to perform the output control of an engine without using throttle valve by a method wherein a timing control device, which is arranged between an camshaft for driving suction valves only and the power transmission device of a crankshaft, is operated with an accelerator pedal. CONSTITUTION:Slits 62 and 64, which intersect each other, are respectively provided on an inner sleeve 54 coupled to a camshaft 34 for driving suction valves only and on the outer sleeve 60 of a timing pulley 42, which transmits a driving force from a crankshaft side. Roller bearings 66 and 68, which are inserted in both the slits 62 and 64, are axially shifted in order to control suction valve timing. Since the shifting of the roller bearings 66 and 68 is so constituted as to be controlled with an accelerator pedal 84, the output control of an engine is performed without using throttle valve.

Abstract translation: 目的：为了能够通过以下方法来执行发动机的输出控制，即不使用节流阀，其中布置在仅用于驱动吸入阀的凸轮轴和曲轴的动力传递装置之间的定时控制装置用加速器 踏板。 构成：彼此相交的狭缝62和64分别设置在联接到凸轮轴34的内套筒54上，该凸轮轴34仅用于驱动吸入阀，并且在同步带轮42的外套筒60上传递来自曲轴的驱动力 侧。 插入到狭缝62和64两者中的滚子轴承66和68被轴向移动以便控制吸气阀正时。 由于滚子轴承66和68的移动被构造成由加速器踏板84控制，所以在不使用节流阀的情况下执行发动机的输出控制。