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    CONTROL DEVICE FOR DIRECT COUPLET TYPE HYBRID VEHICLE
    71.
    发明专利
    CONTROL DEVICE FOR DIRECT COUPLET TYPE HYBRID VEHICLE 失效

    公开(公告)号：JP2001140670A

    公开(公告)日：2001-05-22

    申请号：JP32907999

    申请日：1999-11-19

    Applicant: TOYOTA MOTOR CORP ,  DAIHATSU MOTOR CO LTD

    Inventor： TAKAOKA TOSHIBUMI ,  SUZUKI NAOTO ,  SUZUKI TAKASHI ,  OKADA HIROFUMI

    IPC: F02D45/00 ,  B60K6/20 ,  B60K6/485 ,  B60L50/16 ,  B60W10/06 ,  B60W10/08 ,  B60W20/00 ,  F02D29/02 ,  B60L11/14

    Abstract: PROBLEM TO BE SOLVED: To smoothly switch power from a motor to an engine in a direct coupled type hybrid vehicle. SOLUTION: An engine 3, a motor generator 5 and an automatic transmission 7 are connected and these are controlled by a hybrid ECU 11. A complete explosion estimating part 17 estimates that the engine 3 starts to generate positive torque when the engine 3 is started. The estimation is performed by engine speed, fuel injection and an ignition processing. A power switching control part 19 switches power from the motor generator 5 to the engine 3 based on the estimation result. Preferably, a motor output is reduced by moderating. Preferably, a feedback control is performed for the motor output so as to prevent engine speed from lowering below a prescribed value. Engine torque after the engine 3 starts to generate positive torque is estimated and the motor output may be reduced so as to cancel the engine torque.

    POWER OUTPUT DEVICE AND ITS CONTROL METHOD
    72.
    发明专利
    POWER OUTPUT DEVICE AND ITS CONTROL METHOD 失效

    公开(公告)号：JPH11117782A

    公开(公告)日：1999-04-27

    申请号：JP29354397

    申请日：1997-10-09

    Applicant: TOYOTA MOTOR CORP

    Inventor： TAKAOKA TOSHIBUMI

    IPC: F02D13/02 ,  B60K6/20 ,  B60K6/24 ,  B60K6/445 ,  B60L50/16 ,  B60W10/06 ,  B60W10/08 ,  B60W10/26 ,  B60W20/00 ,  F02D29/02 ,  F02D41/04 ,  B60L11/14

    Abstract: PROBLEM TO BE SOLVED: To provide a hybrid type power output device with a driver and motor as power sources, capable of avoiding the lowering of operating efficiency at the time when great power is required. SOLUTION: A generator MG1, a motor MG2 and the output shaft of an engine 150 are joined to the sungear shaft 125 of a planetary gear 120, a ring gear shaft 126 and a planetary carrier shaft 127 to form a power output device. Normally, an engine is operated at an operation point with the most operating efficiency to required power, but if it cannot be operated at this operation point due to the restriction of a rotating number, torque is increased to output power equivalent to the required power. For the torque to be increased, VVT is controlled in accordance with the rotating number of the engine and a torque based map to change the opening/closing timing of a suction valve. Such control allows the restriction of power supply from a battery and improves operating efficiency if a required power value is large.

    AIR-FUEL RATIO CONTROLLER FOR INTERNAL COMBUSTION ENGINE
    74.
    发明专利
    AIR-FUEL RATIO CONTROLLER FOR INTERNAL COMBUSTION ENGINE 失效

    公开(公告)号：JPH01190936A

    公开(公告)日：1989-08-01

    申请号：JP1357088

    申请日：1988-01-26

    Applicant: TOYOTA MOTOR CORP

    Inventor： TAKAOKA TOSHIBUMI

    IPC: F02D41/14 ,  F02D41/00

    Abstract: PURPOSE:To reduce the exhaust emission by immediately starting the closed- loop-control by a downstream side air-fuel ratio sensor when other closed-loop- condition is fulfilled when the duration time of the operation state other than a theoretical air-fuel ratio is shorter than a prescribed time, while by starting the closed-loop-control after the lapse of a prescribed delay time, when the duration time is longer. CONSTITUTION:An operation state judging means judges the operation state other than a theoretical air-fuel ratio, for example, the fuel cut state, and when a judging means judges that the continuation time is shorter than a prescribed time, a downstream side F/B judging means judges the closed-loop-condition, and then the closed-loop-control by a downstream side O2 sensor is started immediately. A calculation means calculates the air-fuel ratio feedback control constants (skip quantity) RSR and RSL, and further calculates the air-fuel ratio correction quantity FAF according to the output of an upstream side O2 sensor for a three-component catalyst CCRO, and adjusts the air-fuel ratio. When the duration time is long, a delay means performs delaying for a prescribed time, and closed-loop control is started. Therefore, the reduction of exhaust emission and improvement of fuel consumption are permitted.

    AIR-FUEL RATIO CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
    75.
    发明专利
    AIR-FUEL RATIO CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE 失效

    公开(公告)号：JPH01113552A

    公开(公告)日：1989-05-02

    申请号：JP26941987

    申请日：1987-10-27

    Applicant: TOYOTA MOTOR CORP

    Inventor： TAKAOKA TOSHIBUMI

    IPC: F02D41/14 ,  F02D41/00

    Abstract: PURPOSE:To improve controllability by varying the rich lean skip amount for correcting an air-fuel ratio correction amount and rich lean integration constant in a system where air-fuel ratio sensors are respectively disposed downstream and upstream from a catalytic converter rhodium according to output of the upstream sensor. CONSTITUTION:Air-fuel ratio sensors 13-5 are respectively disposed upstream and downstream from a catalytic converter rhodium 12 provided in an exhaust passage. In air-fuel ratio correction amount arithmetic means A, when output of the upstream sensor 13 is reversed from rich to lean (from lean to rich), air-fuel correction amount is increased (decreased) in a skipping manner by rich (lean) skip amount. When output of the above sensor 13 is lean (rich), an airfuel ratio correction amount is gradually increased (decreased) according to rich integration constant. In control constant arithmetic means B, according to output of the downstream sensor 15, the above lean (rich) skipping amount and the lean (rich) control constant are increased or decreased, and according to the air-fuel ratio correction amount, air-fuel ratio control means C is controlled.

    OPERATING METHOD FOR HYBRID VEHICLE DRIVING STRUCTURE WITH TRANSMISSION
    76.
    发明专利
    OPERATING METHOD FOR HYBRID VEHICLE DRIVING STRUCTURE WITH TRANSMISSION 审中-公开

    公开(公告)号：JP2003212005A

    公开(公告)日：2003-07-30

    申请号：JP2002016433

    申请日：2002-01-25

    Applicant: TOYOTA MOTOR CORP

    Inventor： TAKAOKA TOSHIBUMI

    IPC: B60W20/00 ,  B60K6/48 ,  B60K17/04 ,  B60L50/16 ,  B60W10/04 ,  B60W10/08 ,  B60W10/10 ,  B60K41/04 ,  B60K6/04 ,  B60K41/00 ,  B60L11/14

    Abstract: PROBLEM TO BE SOLVED: To relieve a sudden torque change or a temporary torque drop generated between gear shifts caused by releasing a frictional engagement device such as a clutch or a brake or new engagement during gear shifting of a transmission in a hybrid vehicle driving structure by utilizing structural characteristics thereof. SOLUTION: This hybrid vehicle driving structure is provided with an output shaft for an internal combustion engine which is connected to a wheel driving shaft through the transmission, and a motor generator which is connected to the wheel driving shaft, thus relieving the sudden torque change or the temporary torque drop generated during gear shifting of the transmission, by a change in the output torque of a motor. COPYRIGHT: (C)2003,JPO

    CONTROLLER FOR INTERNAL COMBUSTION ENGINE WITH VARIABLE VALVE TIMING SYSTEM
    77.
    发明专利
    CONTROLLER FOR INTERNAL COMBUSTION ENGINE WITH VARIABLE VALVE TIMING SYSTEM 审中-公开

    公开(公告)号：JP2002130027A

    公开(公告)日：2002-05-09

    申请号：JP2001282057

    申请日：2001-09-17

    Applicant: TOYOTA MOTOR CORP

    Inventor： TAKAOKA TOSHIBUMI

    IPC: F02P5/152 ,  F02D13/02 ,  F02D43/00 ,  F02D45/00 ,  F02P5/15 ,  F02P5/153

    Abstract: PROBLEM TO BE SOLVED: To prevent knocking from being generated in abrupt change of valve timing. SOLUTION: This controller for an internal combustion engine with a variable valve timing system 101, and a valve timing control means 102 for controlling opening and closing timing of an intake valve 106 of the engine 105 in response to an engine operation condition using the variable valve timing system has also a valve timing change degree detecting means 103 for detecting a changing degree of the opening and closing timing of the intake valve 106, and a knocking restraining control means 104 for delaying ignition timing in response to the changing degree detected by the valve timing change degree detecting means to execute knocking restraining control. The knocking restraining control is executed when the opening and closing timing of the intake valve is change- controlled from delayed closing to advanced closing.

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