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81. 发明专利

JPH08251706A REGENERATIVE CONTROL DEVICE OF ELECTRIC CAR 失效
公开(公告)号：JPH08251706A
公开(公告)日：1996-09-27
申请号：JP5117795
申请日：1995-03-10
申请人： TOSHIBA TRANSPORT ENG KK , TOSHIBA CORP
发明人： MAKINO TOMOYOSHI , YAMAMOTO SHIROJI
IPC分类号： B60L7/14 , B60L7/24 , H02P3/18 , H02P3/26
摘要： PURPOSE: To effectively regenerate the energy to the power source side by re-starting a regenerative brake, and continuing application of the regenerative brake if the load on the power source side is returned even when the inverter DC voltage rises and the regenerative brake becomes ineffective when the regenerative brake is started or while the regenerative brake is in operation. CONSTITUTION: A delay circuit 61 is set so that no automatic reset may be made for about three seconds even if an overvoltage detecting circuit 21 detects the overvoltage, and the reference number of detection of the overvoltage is set to about 3 in a comparator 65. When the detecting circuit 21 detects the overvoltage, the gate start command GS is blocked, and the number of detection is counted by a counter 64, and the detecting circuit 21 is reset through the delay circuit 61 to make re-starting. Subsequently, the re-starting is realized in a similar manner if the number of detection is below three even when the detecting circuit 21 detects the overvoltage. The kinetic energy is regenerated to the power source side as much as possible, and an electric brake can be applied to a car as much as possible.

82. 实用新型

JPH0753434Y2 失效
公开(公告)号：JPH0753434Y2
公开(公告)日：1995-12-06
申请号：JP9532288
申请日：1988-07-19
IPC分类号： B66D1/46 , B66D5/30 , H02P3/26

83. 发明专利

JPH07269254A DRIVING GEAR OF BODY BY MOTOR 失效
公开(公告)号：JPH07269254A
公开(公告)日：1995-10-17
申请号：JP4316595
申请日：1995-03-02
申请人： SOMFY
发明人： KURISUTEIAN BANDERUSEEJIYU , SERUJIYU BURUUNO
IPC分类号： E06B9/56 , E06B9/32 , E06B9/82 , G05B19/05 , G05B19/10 , G05B19/416 , G05D3/10 , H02P3/26 , H02P23/00 , H02P25/04
摘要： PURPOSE: To stop a driven body by an electric motor repeatedly and with a high reliability at a predetermined position without applying an excessive voltage by providing an initializing means to a particular power supply phase to the motor switched by the operation of more than one switch related to mechanical displacement measuring means. CONSTITUTION: A blind is made as a cassette type, is housed in a box construction body 12 fixed to a reveal 13, and a roller shutter is wound around a pipe- shaped motor 4 inside a roller pipe 3. And the motor 4 and a counting device 5 are made in one united body and is driven with the motor 4. And a calculating device 5 memorizes the stop position of the blind and is set so as to operate a reverse rotation switch before a predetermined time when a partition profile portion 14 comes to the boundary above the box structural body 12 and also memorizes the stop position of the portion where the blind is not wound and the switch of the calculating device 5 is operated when he blind is at a non-wind position requested.

84. 发明专利

JPH06351294A CRANE DRIVING METHOD 失效
公开(公告)号：JPH06351294A
公开(公告)日：1994-12-22
申请号：JP16606993
申请日：1993-06-11
申请人： HITACHI KIDEN KOGYO KK
发明人： WARATANI HIROHARU
IPC分类号： H02P3/26 , H02P15/00 , H02P27/06 , H02P7/63
摘要： PURPOSE:To suppress current oscillation when a crane is driven. CONSTITUTION:A driver for crane employing a V/F control inverter 2 is equipped with an oscillation detector 5 for detecting the periodical variation of current of a motor M for driving the crane. An electromagnetic brake Br for the crane driver generates brake force based on an oscillation current detection signal delivered from the detector 5 and increases the load torque of the motor M temporarily. Consequently, slip of the motor is increased and the oscillation of current is suppressed. The current oscillation is suppressed positively by detecting the oscillation current of the driving motor M, generating the brake force from the electromagnetic brake Br based on the detection signal and temporarily increasing the load torque of the motor M thereby increasing the slip of the motor M.

85. 发明专利

JPH06296383A SERVOMOTOR CONTROL EQUIPMENT 失效
公开(公告)号：JPH06296383A
公开(公告)日：1994-10-21
申请号：JP8190593
申请日：1993-04-08
申请人： MITSUBISHI HEAVY IND LTD
发明人： MIYATA TAKASHI
IPC分类号： H02P3/06 , H02P3/16 , H02P3/26
摘要： PURPOSE:To enable safe and exact execution of quick braking by utilizing speed servo locking in a short time even when only a holding brake is provided, by a method wherein the speed of a servomotor is reduced quickly by putting a servo amplifier in a state of servo locking when a quick braking command is received, and then the holding brake is put in a braked state. CONSTITUTION:When a quick braking request signal is transmitted by CPU 9 via a servo amplifier interface 13, a speed control signal is held in a state of stoppage by a quick braking circuit 14 and servo locking is executed. After passage of seconds t1, a holding brake control signal is held on the braking side and a machine to be driven and others are stopped and held by a holding brake 3. After seconds t2 pass further, a servo amplifier ON signal is switched onto the OFF side and a state of servo locking of a servomotor 1 is canceled. The time of the seconds t1 and t2 is set properly in accordance with the weight of a body to be driven and others. By utilizing speed servo locking, according to this constitution, a sufficient braking performance is obtained by a simple braking mechanism provided only with the holding brake.

86. 发明专利

JPH06121568A INVERTER 失效
公开(公告)号：JPH06121568A
公开(公告)日：1994-04-28
申请号：JP26366792
申请日：1992-10-01
申请人： MITSUBISHI ELECTRIC CORP
发明人： KIMURA TOMOKAZU , HARADA OSAMU
IPC分类号： H02P3/18 , G05D3/00 , H02P3/20 , H02P3/26
摘要： PURPOSE:To obtain an inverter equipped with means for stopping a motor accurately at a stop position in a short time. CONSTITUTION:A microprocessor 4 controls operation of a motor 7 fixed with an encoder 8. Rising or falling edge of output signal from the encoder 8 is detected and a detection signal is employed for reversing the rotational direction of the motor 7. A timer means measures a time to be elapsed after reversal of rotation before detection of next rising or falling edge of pulse output signal from the encoder 8 and when the time thus measured becomes shorter than an arbirarily set time, the motor 7 is braked.

87. 发明专利

JPH0522804A ELECTRIC BRAKE SYSTEM FOR VEHICLE 失效
公开(公告)号：JPH0522804A
公开(公告)日：1993-01-29
申请号：JP17387591
申请日：1991-07-15
申请人： HINO MOTORS LTD
发明人： OBATA ATSUMI , KOIKE TETSUO , SUZUKI TAKAYUKI , KOTO TAKASHI
IPC分类号： B60L7/20 , B60K6/20 , B60K6/485 , B60T7/12 , B60W10/08 , B60W10/18 , B60W20/00 , H02P3/18 , H02P3/26
摘要： PURPOSE:To realize gradual transfer from electric brake to foot brake by gradually lowering the duty ratio of an inverter upon abnormal temperature rise of a resistor which consumes power to be generated when an AC rotating machine is in generative brake state. CONSTITUTION:Three-phase AC power produced from an AC three-phase rotating machine 3 driven through an engine 1 is inverted through an inverter 6 in order to charge a battery 8 and then an DC/DC converter 9 converts the battery power in order to drive an auxiliary machine(not shown). A series circuit of a switch circuit 15 and a resistor 7 is connected to DC terminals of the inverter 6. Under electric brake mode, the switch circuit 15 is switched in order to consume the generated power through the resistor 7. Temperature of the resistor 7 is then detected 22 and inputted to a resistor control 23. When the temperature exceeds a predetermined level, duty ratio of the switch circuit 15 is lowered gradually through a control circuit 25 thus gradually transferring the electric brake to foot brake. According to the invention, safe and smooth operation is realized.

88. 发明专利

JPH04207913A BRAKE SYSTEM FOR VEHICLE PROVIDED WITH RETARDER 失效
公开(公告)号：JPH04207913A
公开(公告)日：1992-07-29
申请号：JP33433190
申请日：1990-11-30
申请人： HINO MOTORS LTD
发明人： SUZUKI TAKAYUKI , KOIKE TETSUO , OBATA ATSUMI
IPC分类号： B60L7/22 , B60L7/24 , H02P3/26
摘要： PURPOSE:To replenish brake force optimally through electric brake for any brake operation by detecting brake pressure of an air brake unit and producing an electric brake torque having rising characteristic higher by a predetermined amount than thus detected brake pressure. CONSTITUTION:When a driver steps a brake pedal 12 of an air brake system 60, rising characteristic of the air brake system 60 is detected by a brake pressure detecting circuit 45 based on a signal delivered from a pressure sensor 57. On the other hand, an electric brake torque setting circuit 46 sets a maximum electric brake torque TBe corresponding to the stepping of pedal having steeper rising characteristic. Consequently, rotating field at the stator section of an induction machine lags abruptly and the engine driving system is braked abruptly.

89. 发明专利

JPH03164003A REGENERATIVE BRAKE CONTROLLER FOR ELECTRIC ROLLING STOCK 失效
公开(公告)号：JPH03164003A
公开(公告)日：1991-07-16
申请号：JP30222789
申请日：1989-11-22
申请人： TOYO ELECTRIC MFG CO LTD
发明人： KURIHARA ATSUSHI
IPC分类号： H02P3/26 , B60L7/24
摘要： PURPOSE:To suppress vibration of body due to variation of brake force caused through switching from regenerative brake to pneumatic brake at the final stage of regenerative brake operation by detecting regenerative brake force and combining the regenerative brake and the pneumatic brake according to a predetermined pattern. CONSTITUTION:A brake force generator receives a speed signal I1, a main circuit state signal 12, a regenerative brake input command 13, and a brake force command 14 and outputs a pneumatic brake control signal O1 and a regenerative brake signal O2. Only regenerative brake is applied for high speed but upon lowering of speed, a second simulation signal generator 10 closes switches SW2, SW3 to actuate a brake force pattern subtractor 8 and a coefficient generator 9. Consequently, regenerative brake force decreases according to a pattern and pneumatic brake operation takes place. By such arrangement, switching between regenerative brake operation and pneumatic brake operation can be carried out smoothly for an electric rolling stock.

90. 发明专利

JPH01144376A BRAKE MOTOR 失效
公开(公告)号：JPH01144376A
公开(公告)日：1989-06-06
申请号：JP29998587
申请日：1987-11-30
申请人： JAPAN SERVO
发明人： UCHIYAMA MAKOTO , AOKI MINORU , KOJIMA SEIJI
IPC分类号： H02P3/26 , F16D65/14
摘要： PURPOSE:To correct faults and to provide a long life by providing an off brake device together with an electronic brake device. CONSTITUTION:A brake motor is constituted of a rotor shaft 51 of a compact induction motor 1, a housing 52, a rotor 54, a stator core 55, a stator winding 56, an electromagnetic coil 13, a core 14, an armature 16 of a brake, a friction member 17, a serration section 18, a permanent magnet rotor 21 of a speed motor 2, a stator 23 and so on. A controlling circuit is equipped with a signal processor 31, an electronic brake control section 32, a speed setting section 33, a revolution detection section 34 and an off brake control section 35. An off brake device 5 is provided together with an electronic brake device, when a shutdown command is accepted, first of all the electronic brake device actuates, and a speed of the motor 1 is reduced to a certain set speed, when it reaches below the set speed, an electronic brake is stopped, and at the same time, the power to the electromagnetic coil 13 of the off brake device 5 is disconnected, and a brake is applied.

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