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71. 发明专利

JPH08154305A CONTROL METHOD FOR INDUCTION MOTOR 失效
公开(公告)号：JPH08154305A
公开(公告)日：1996-06-11
申请号：JP29278194
申请日：1994-11-28
申请人： TOYOTA MOTOR CORP
发明人： KUSAKA YASUSHI
IPC分类号： B60L9/18 , H02P21/00 , H02P21/22 , H02P23/07 , H02P23/16 , H02P23/30 , H02P27/04 , H02P27/06 , H02P5/41
摘要： PURPOSE: To improve the output torque response of an induction motor to an accelerator while performing the asynchronous energization of the motor when the synchronization of the motor is lost. CONSTITUTION: A magnetic flux command is decided in response to a given torque command. In this case, if the torque command belongs to a range of '0' to 'Tr1' of relatively small value, the flux command is set to the value of the vicinity of a synchronous magnetic flux Φs. Since the flux command is reduced to the flux Φs for a predetermined time at the initial time of rising the torque command, an induction motor can be asychronously energized. Since the torque command is raised without waiting until the flux command is reset to a rated value, the response is improved as compared with the conventional control in which the torque command is raised by waiting the rising of the flux command.

72. 发明专利

JP2000337190A CONTROL DEVICE OF VEHICULAR ENGINE AUTOMATIC STOP 失效
公开(公告)号：JP2000337190A
公开(公告)日：2000-12-05
申请号：JP2000040078
申请日：2000-02-17
申请人： TOYOTA MOTOR CORP
发明人： MIZUTANI KOICHI , KUSAKA YASUSHI
IPC分类号： B60W10/04 , B60T13/58 , B60T17/00 , B60T17/02 , B60W10/06 , B60W10/10 , B60W10/18 , B60W10/184 , F02D17/00 , F02D17/04 , F02D29/00 , F02D29/02 , F02D41/12 , F02N11/08 , B60K41/20
摘要： PROBLEM TO BE SOLVED: To improve the fuel consumption without hurting the operability of a vehicle. SOLUTION: This device has an engine operated by a supplied fuel and an operation member in which the rotation state of the engine affects to the operation content and stops the fuel supply against the engine by materializing a prescribed condition in the running. This device is provided with a rotation state judging means for judging the forced rotation of the engine by the vehicular running inertia force, at the vehicular inertia running time (S3), an operation state judging means for judging the operation content of the operation member at the forcedly rotated engine state by the vehicular running inertia force (S3) and an automatic stop prohibition means for prohibiting the fuel supply stop against the engine when the insufficiency of the operation content of the operation member is judged by the operation state judging means (S3).

73. 发明专利

JPH0974612A DEVICE AND METHOD FOR CONTROLLING CHARGING OF VEHICLE BATTERY 失效
公开(公告)号：JPH0974612A
公开(公告)日：1997-03-18
申请号：JP22507295
申请日：1995-09-01
申请人： TOYOTA MOTOR CORP
发明人： KUSAKA YASUSHI
IPC分类号： H02J7/00 , B60K6/20 , B60K6/485 , B60K6/54 , B60L7/12 , B60L11/18 , B60W10/06 , B60W10/26 , B60W20/00
摘要： PROBLEM TO BE SOLVED: To charge a battery by efficiently generating power on braking in a system where a motor and a generator are connected to an engine output shaft. SOLUTION: When an engine E/G1 outputs power, a motor/a generator M/G2 are connected. A control circuit 5 includes an inverter, operates the M/G2 as a motor or a generator, and charges and discharges a battery 6. The control circuit 5 does not generate power until the voltage between the terminals of the battery 6 becomes smaller than a specific value and generates power at a high torque for charging when the voltage between terminals becomes smaller than the specific value. Also, an engine computer 4 increases the output of an engine and suppresses the torque fluctuation when the engine generates power.

74. 发明专利

JPH08317699A CONTROLLER FOR INDUCTION MOTOR 失效
公开(公告)号：JPH08317699A
公开(公告)日：1996-11-29
申请号：JP11481395
申请日：1995-05-12
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： ISHII NAOKI , KIKUCHI TETSUO , TSUZUKI MASAAKI , ARAI YOSHIHIDE , KUSAKA YASUSHI
IPC分类号： H02P21/00 , H02P21/05 , H02P21/14 , H02P21/20 , H02P21/22 , H02P23/04 , H02P23/07 , H02P23/14 , H02P27/04 , H02P27/06 , H02P5/41
摘要： PURPOSE: To provide a controller for induction motor which is hardly affected by a change in motor constant and an influence by a motor driving condition by reading out the current deviation of the same past voltage vector as an existing voltage vector, and using a predicted current value where it is added to the detected primary current for forming an instantaneous section flux vector. CONSTITUTION: The primary voltage to a three-phase induction motor 8 is detected by a detection means 9a and the primary current is detected by a detection means 9b, and based on these values, a three-phase inverter 7 is controlled by an instantaneous space flux vector forming means 100. At this time, current prediction means 30a, 30b obtain a difference from the detected primary current in the control cycle just before based on the outputted current of a current detector 9b which is a 3-phase/2-phase conversion means to record a current deviation with a voltage vector from a switching table 16 using as a parameter and update it successively. The current prediction means 30a, 30b read out a current deviation with a voltage vector from a switching table 16 using as a parameter and conduct subsequent processing in addition to the outputted current of the current detector 9b.

75. 发明专利

JPH07336809A CONTROL METHOD OF SERIES HYBRID VEHICLE 失效
公开(公告)号：JPH07336809A
公开(公告)日：1995-12-22
申请号：JP12343994
申请日：1994-06-06
申请人： TOYOTA MOTOR CORP
发明人： KUSAKA YASUSHI
IPC分类号： F02D29/06 , B60K6/20 , B60K6/46 , B60L50/13 , B60L50/15 , B60W10/06 , B60W10/08 , B60W10/26 , B60W20/00 , B60L11/08 , B60L11/12
摘要： PURPOSE:To obtain a control method in which the running operation of a vehicle can be continued even when a battery cannot function normally and which prevents an emission from being worsened due to a sudden increase in an engine speed. CONSTITUTION:When a battery voltage Vb becomes abnormal (102), a generator controller decides a target engine speed Ne* according to an accelerator opening Acc (206), a vehicle controller corrects a torque instruction T* in such a way that an engine speed Ne becomes the target engine speed Ne*, and it outputs the torque instruction to a motor controller (108). Since a generator output and the engine speed are controlled according to an output required by a motor, the blowup of the engine speed Ne due to the loss of an engine balance not generated. In addition, when a change in an engine output is decreased as compared with a change in the accelerator opening Acc, it is possible to prevent an emission from being worsened due to a sudden change in the engine speed Ne.

76. 发明专利

JPH07107772A DRIVE CONTROL CIRCUIT OF PERMANENT MAGNET-TYPE SYNCHRONOUS MOTOR 失效
公开(公告)号：JPH07107772A
公开(公告)日：1995-04-21
申请号：JP25415293
申请日：1993-10-12
申请人： TOYOTA MOTOR CORP
发明人： KUSAKA YASUSHI
IPC分类号： H02P6/06 , H02P6/08 , H02P6/17 , H02P21/00 , H02P21/04 , H02P21/14 , H02P21/18 , H02P21/24 , H02P23/03 , H02P23/14 , H02P23/16 , H02P23/18 , H02P27/04 , H02P27/08
摘要： PURPOSE:To prevent an efficiency drop or an output shortage due to excess or lack of weak field current when a permanent magnet-type synchronous motor is controlled at a weak field. CONSTITUTION:When the number of revolutions N of a motor is the number of revolutions NB of a base or higher, a first calculation part 20 computes a maximum motor-impressed voltage VMAX, which can be output to an inverter 14, on the basis of a battery voltage VB detected by a battery-voltage detection part 18. A second calculation part 22 reads out the impressed voltage VMAX operated by the first calculation part 20, a torque command Tref and the number of revolutions N of the motor, and its computes a weak field current command Id* in the case of a terminal voltage = the applied voltage VMAX. An inverter controller 24 controls the motor at a weak field by the weak-field current command Id*.

77. 发明专利

JPH06261419A CONTROLLER FOR ENGINE DRIVEN GENERATOR IN ELECTRIC AUTOMOBILE 失效
公开(公告)号：JPH06261419A
公开(公告)日：1994-09-16
申请号：JP4343393
申请日：1993-03-04
申请人： TOYOTA MOTOR CORP
发明人： KUSAKA YASUSHI
IPC分类号： B60L50/15 , B60K6/46 , B60W10/06 , B60W10/08 , B60W20/00 , F02D29/06 , F02N11/04 , H02P9/04 , B60L11/12
摘要： PURPOSE:To prevent the running feeling from deteriorating by preventing generation of shock at the time of starting an engine in an electric automobile where an engine driven generator is used as an engine starter. CONSTITUTION:Low fluctuation of load on a motor is employed 118 as a condition for starting an engine. Information representative of fluctuation of load on the motor includes fluctuation of r.p.m. DELTAN of motor, variation DELTAT of torque command value, etc. Only when the engine starting conditions are satisfied, control of a contactor is executed 102. The generator is used 104 as an engine starter and after starting the engine 106, 108, output from an inverter is fed to the motor 110.

78. 发明专利

JP2000345910A ATMOSPHERIC PRESSURE ESTIMATING DEVICE FOR VEHICLE 失效
公开(公告)号：JP2000345910A
公开(公告)日：2000-12-12
申请号：JP15527099
申请日：1999-06-02
申请人： TOYOTA MOTOR CORP
发明人： MIZUTANI KOICHI , KUSAKA YASUSHI , HARA KATSUYA
IPC分类号： G01L23/24 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To enhance a calculation frequency of atmospheric pressure. SOLUTION: This atmospheric pressure estimating device for a vehicle which estimates atmospheric pressure on the basis of an atmospheric pressure estimating parameter by taking the physical quantity detected with the operation of an on-vehicle engine as an atmospheric pressure estimating parameter and which is provided with a throttle opening sensor for detecting the throttle opening TA of the engine. Intake pipe pressures PM1, PM2 as atmospheric pressure estimating parameters in two different throttle openings TA1, TA2 detected by the sensor are found, and atmospheric pressure PA is calculated on the basis of respectively found intake pipe pressures PM1, PM2.

79. 发明专利

JP2000310133A AUTOMATIC STOPPING AND STARTING DEVICE FOR ENGINE 失效
公开(公告)号：JP2000310133A
公开(公告)日：2000-11-07
申请号：JP11837099
申请日：1999-04-26
申请人： TOYOTA MOTOR CORP
发明人： NOMURA TOKUYUKI , MIZUTANI KOICHI , KUSAKA YASUSHI
IPC分类号： B60T17/00 , F02D29/02 , F02N15/00
摘要： PROBLEM TO BE SOLVED: To prevent lowering of a brake booster function caused by an increased engine stop frequency in an automatic stopping and starting device for an engine in a vehicle provided with the braked booster making intake negative pressure generated based on engine rotation as a booster source. SOLUTION: This device is provided with a sensor 52 detecting negative pressure of a brake booster 38. When negative pressure during stoppage of an engine 10 becomes lower than a prescribed value, the engine 10 is started. When the number of times of brake operations during the stoppage of the engine 10 becomes a higher than prescribed value, the engine 10 is started. When a speed higher than prescribed value is detected for fixed time or more during the stoppage of the engine, the engine 10 is started. By starting the engine, sufficient surge tank negative pressure, that is, brake booster negative pressure is secured.

80. 发明专利

JP2000116170A MOTOR TORQUE CONTROLLER 失效
公开(公告)号：JP2000116170A
公开(公告)日：2000-04-21
申请号：JP28410698
申请日：1998-10-06
申请人： TOYOTA MOTOR CORP
发明人： HANADA HIDETO , KUSAKA YASUSHI
IPC分类号： H02P23/00 , H02P21/18 , H02P21/22 , H02P21/24 , H02P5/28 , H02P7/36
摘要： PROBLEM TO BE SOLVED: To extract the full potential capability from a synchronous motor having a small capacity by outputting further its torque even when its driving voltage are saturated. SOLUTION: The torque controller of a synchronous motor 10 having a small capacity has a control circuit 20 and a feedback circuit 30. The control circuit 20 computes voltage Vu, Vv, Vw applied to stator coils 19 of the motor 10 from a torque-current command value IQc to apply the computed results to the stator coils 19. The feedback control circuit 30 feeds back to the control circuit 20 actual torque-currents iu, iv, iw flowing through the stator coils 19. When the applied voltages Vu, Vv, Vw to the stator coils 19 turn saturated, the control circuit 20 creates an excitation current IDc having a different phase from the torque-current command value IQc to alter the applied voltages Vu, Vv, Vw, and operates to so correct the value of the excitation current IDc that a fed-back actual torque-current Iq is matched with the torque-current command value IQc. As the synchronous motor 10, a cross-pole motor can be used.

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