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1. 发明专利

JP2002315298A INTERNALLY-MOUNTED STRUCTURE OF RETARDER CONTROL APPARATUS 失效
公开(公告)号：JP2002315298A
公开(公告)日：2002-10-25
申请号：JP2001112303
申请日：2001-04-11
申请人： SAWAFUJI ELECTRIC CO LTD
发明人： KIMURA HIDEKI
IPC分类号： H02K5/22 , H02K49/00
摘要： PROBLEM TO BE SOLVED: To provide an apparatus of compact size and expand its versatility by integrating a drive unit and a control unit without being influenced by noise. SOLUTION: In this internally-mounted structure of a retarder controller of an auxiliary braking system provided with an electromagnetic retarder body with an exciter built in, its drive unit, and a control unit of generating control signals, a case 31 having a rising stage in the center of the inner bottom thereof is formed, and a power rectifying element 25 is disposed in the center. The drive unit of a substrate 34 surrounded by a long tall part attached with the side of the rising platform 32 of the case 31 and the control unit disposed with a substrate 35 taking a space from the substrate 34 are stored in the case 31. Both the substrates 34, 35 are electrically connected to each other, and a power system and its control system in the substrate 34 are separated. Lead wires to the outside of the case are drawn out respectively from a surface facing the side surface of the case 31 with the power system and the control system separated.

2. 发明专利

JP2000060194A RETARDER 失效
公开(公告)号：JP2000060194A
公开(公告)日：2000-02-25
申请号：JP23141098
申请日：1998-08-18
申请人： SAWAFUJI ELECTRIC CO LTD
发明人： KIMURA HIDEKI
IPC分类号： H02P15/00
摘要： PROBLEM TO BE SOLVED: To provide a retarder, the reliability of which can be improved as a system and from which an initial failure that does not bad to serious consequence can be detected even if failure should happen. SOLUTION: A retarder is provided with a plurality of electrically insulated exciter coil groups 118, the same number as the exciter groups as electrically insulated field coil groups 116, and the same number of power supply circuits 46 and each control unit is constituted, by pairing one exciter coil group 118 and one field coil group 116 to one power supply circuit 46. The retarder is also provided with exciter generating voltage detecting means 45 which respectively detects the AC voltages induced in the exciter coil groups 118 of the control units, output voltage detecting means 48 which detect the voltages supplied to the field coil groups 116, and a controller which discriminates failures, based on the signals from the exciter generating voltage detecting means 45 and output voltage detecting means 48.

3. 发明专利

JP2001298998A SWITCH OF RETARDER FOR VEHICLE 失效
公开(公告)号：JP2001298998A
公开(公告)日：2001-10-26
申请号：JP2000114670
申请日：2000-04-17
申请人： SAWAFUJI ELECTRIC CO LTD
发明人： KIMURA HIDEKI
IPC分类号： B60R16/02 , H02P15/00
摘要： PROBLEM TO BE SOLVED: To enhance switching operability. SOLUTION: The switch of retarder for vehicle comprises lines 11, 12, 13 connected with the anode side of a feeder line, a single pole double throw toggle switch 14 including switch A connected with the line 11 and switch B connected with the line 12, a single pole double throw toggle switch 15 including switch C connected with the line 11 passed through the switch A of the single pole double throw toggle switch 14 and switch D connected with the line 13, and a diode logic circuit 16 including diodes 17, 18, 19 connected, respectively, with the lines 11, 12, 13 wherein the cathode side of the diode 17 is connected with the H operation input of a control unit 5 and the cathode sides of the diodes 18, 19 are connected together with the L operation input of the control unit 5.

4. 发明专利

JP2001078499A RETARDER 失效
公开(公告)号：JP2001078499A
公开(公告)日：2001-03-23
申请号：JP25248299
申请日：1999-09-07
申请人： SAWAFUJI ELECTRIC CO LTD
发明人： KIMURA HIDEKI , IDA KAZUO
IPC分类号： B60T8/00 , F02D9/06 , H02P15/00
摘要： PROBLEM TO BE SOLVED: To enhance operability and fuel consumption of an auxiliary brake. SOLUTION: A retarder is so constituted as to create the optimum brake situation by making each brake and/or itself act in concert, to make an operation mode which selected and set from an auxiliary brake system act as an auxiliary brake, to an automobile which is loaded with an auxiliary brake system equipped with an exhaust brake 12, an engine retarder 13, and an electromagnetic retarder 14 having a built-in exciter. In this case, this retarder is equipped with an auxiliary brake operation lever 15 which selects one of operation modes in three stages which are off, fully automatic, or fully opened, and a cooperative brake processing means 4 which operates cooperative actions within the auxiliary brake system, according to the operation mode selected with an auxiliary brake operation lever 15.

5. 发明专利

JPH10248299A ANTIFREEZING DEVICE FOR RETARDER 失效
公开(公告)号：JPH10248299A
公开(公告)日：1998-09-14
申请号：JP4869897
申请日：1997-03-04
申请人： SAWAFUJI ELECTRIC CO LTD
发明人： KIMURA HIDEKI
IPC分类号： H02P15/00
摘要： PROBLEM TO BE SOLVED: To operate a retarder normally before operation when there is possibility that the inside of the retarder is frozen and the retarder is not worked normally. SOLUTION: In the antifreezing device for the retarder, which has an exciter, in which an exciting current flows through an exciting oil at voltage generated in the exciter and magnetic poles are magnetized successively into mutually different N poles and N poles and by which braking torque is acquired by generating an eddy current in a rotary drum, the exciting coil is divided into a plurality of blocks while a switch 24 changing over the exciting current and a thawing current flowed through one exciting coil 23 in the exciting coils 21, 22, 23 of the split blocks and a battery 12 for flowing the thawing current through one exciting coil 23 in the exciting coils 21, 22, 23 are installed, and the antifreezing device is constituted so as to flow the thawing current through one exciting coil 23 disposed at a place, where there is the possibility of freezing, and configured so as to eliminate the freezing of the retarder before operation.

6. 发明专利

JPH10225194A POWER SUPPLY SYSTEM FOR RETARDER 失效
公开(公告)号：JPH10225194A
公开(公告)日：1998-08-21
申请号：JP2859197
申请日：1997-02-13
申请人： SAWAFUJI ELECTRIC CO LTD
发明人： MOGI SHIGERU , KIMURA HIDEKI , KANEKO NOBUO , OSADA MASAHIRO
IPC分类号： H02P15/00 , H02K49/02
摘要： PROBLEM TO BE SOLVED: To enhance brake torque at the time of low speed rotation. SOLUTION: The power supply system for a retarder arranged such that a voltage generated from a magnet exciter 1 is rectified and supplied to an exciting coil 5 in order to generate an eddy current in an eddy current cylinder 6 thus producing a brake torque is provided with a switch 10 being thrown in when the r.p.m. of the retarder decreases to a specified r.p.m. or below, and a battery 11 for supplying power to the exciting coil 5 when the switch 10 is thrown in.

7. 发明专利

JPH1098900A EXCITER BUILT-IN 失效
公开(公告)号：JPH1098900A
公开(公告)日：1998-04-14
申请号：JP27173496
申请日：1996-09-19
申请人： SAWAFUJI ELECTRIC CO LTD
发明人： OGIWARA KAZUYUKI , KIMURA HIDEKI
IPC分类号： H02P15/00
摘要： PROBLEM TO BE SOLVED: To shut down the exciter and field winding of a retarder forcibly in case of some failure. SOLUTION: This retarder, which involves an exciter 1 so as to rectify AC voltage generated at the exciter 1 into DC voltage by a thyristor control mixing bridge rectifier circuit 3 and supply it to a field winding 4, is provided with a control circuit 9 which controls the field current of the field winding 4 with thyristors 6, 7 based on a vehicle speed signal, a field winding temperature signal, and a retarder inputting signal, and a realy 2 with a normally-closed contact which forcibly-shuts down a feed line to the field winding 4 from the exciter 1 in case of some failure.

8. 发明专利

JPH08266098A CONTROLLER OF RETARDER 失效
公开(公告)号：JPH08266098A
公开(公告)日：1996-10-11
申请号：JP6273295
申请日：1995-03-22
申请人： SAWAFUJI ELECTRIC CO LTD
发明人： OSADA MASAHIRO , KIMURA HIDEKI , AKITANI MASAZUMI , MOGI SHIGERU
IPC分类号： H02P15/00
摘要： PURPOSE: To provide optimum braking force in accordance with a load weight, regardless of the loaded or unloaded state, by detecting the load weight from deflection of a suspension, and controlling breaking torque of a retarder. CONSTITUTION: When a suspension position signal from a suspension position sensor 22 is entered in a control circuit 43 of a retarder 20, the magnitude of position signal, namely the magnitude of field current carried in a field coil 34 is controlled by a linear amplifier 43 in the retarder 20 in accordance with the carrying load weight. Then, larger braking force is set in the retarder 20 when the inertia force of a vehicle is large, while small braking force is set in the retarder when the inertia force is small. In this way, the braking force can be set in accordance with the deflection of the suspension 21.

9. 发明专利

JPH08258691A CONTROLLER FOR AUTOMOBILE RETARDER 失效
公开(公告)号：JPH08258691A
公开(公告)日：1996-10-08
申请号：JP6273195
申请日：1995-03-22
申请人： SAWAFUJI ELECTRIC CO LTD
发明人： OSADA MASAHIRO , AKITANI MASAZUMI , MOGI SHIGERU , KIMURA HIDEKI
IPC分类号： B60T8/176 , B60T8/58 , H02K49/02
摘要： PURPOSE: To coordinate an ABS and a retarder and strengthen a braking force. CONSTITUTION: A retarder for an automobile is equipped with a complex brake system consisting of an ABS and a retader 30 fitted with exciter, and a controller for this automobile retarder includes a coordinator circuit 20 which works on the basis of an ABS signal to actute the ABS and which turns off the retarder operation along with brake disengagement according to the ABS signal and also restitutes the retarder operation a certain period after brake return takes place according to the ABS signal.

10. 发明专利

JPH0833399A METHOD FOR CONVERTING DIRECTLY TORQUE-CONTROLLED INVERTER TO SQUARE-WAVE INVERTER 失效
公开(公告)号：JPH0833399A
公开(公告)日：1996-02-02
申请号：JP16176694
申请日：1994-07-14
申请人： SAWAFUJI ELECTRIC CO LTD
发明人： KIMURA HIDEKI
IPC分类号： B60K6/20 , B60K6/26 , B60K6/485 , B60L7/20 , B60L50/16 , B60W10/08 , B60W20/00 , H02M7/48 , H02P21/00 , H02P27/04 , H02P27/06 , B60L11/14 , H02P7/63
摘要： PURPOSE:To reduce the number of switching operations of an inverter part by securing the width of the maximum value and the minimum value of a predetermined primary flux linkage in such a way that the locus of a primary flux linkage vector becomes a hexagon and selecting the switching-voltage pattern of the inverter part. CONSTITUTION:In a latch circuit 26 which is installed at a switching-pattern selection circuit 7, the magnetic-flux declination region of a primary flux linkage obtained from a magnetic-flux declination computation device 23 is input as 3-bit data, and the output of a magnetic flux comparator 24 becomes the enable signal of the latch circuit 26. By the enable signal, pieces of input data (D1 to D3) are latched respectively on 3-bit output sides (Q1 to Q3). Consequently, when the magnetic-flux-declination region of the primary flux linkage is changed over, the maximum value of the primary flux linkage is selected to be large, and the width of the minimum value and of the maximum value of the primary flux linkage is selected to be large. Then, the track of the primary flux linkage becomes a hexagon, and the number of switching changeover operations of an inverter 3 can be reduced.

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