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1. 发明专利

JP2003182605A CONTROLLER FOR ELECTRIC POWER STEERING SYSTEM 审中-公开
公开(公告)号：JP2003182605A
公开(公告)日：2003-07-03
申请号：JP2001382201
申请日：2001-12-14
申请人： TOYODA MACHINE WORKS LTD
发明人： ITO AKIRA , IWAZAWA MASAHIDE , IWATA SEIKI , YAMADA YASUSHI
IPC分类号： B62D5/04 , H02P29/00 , H02P7/00
摘要： PROBLEM TO BE SOLVED: To provide a controller for an electric power steering system that can prevent a degradation in a steering feeling caused by vibration generation and the like due to a drop in a driving voltage for a sensor for detecting an actual current flowing in an electric motor. SOLUTION: The controller has the actual motor current sensor for detecting an actual current flowing in the motor M, and a sensor driving voltage anomaly detecting means 32, etc., for detecting an anomalous drop in a sensor driving voltage Vb for driving the sensor. The controller further has a voltage controlling means 24, 25, 21, etc., for maintaining an applied voltage to the motor M (motor driving voltage) at a voltage value of a given time point before anomalous drop occurrence if the sensor driving voltage anomaly detecting means detects an anomalous drop in the sensor driving voltage Vb. COPYRIGHT: (C)2003,JPO

2. 发明专利

JPH06339837A CONTACT DETECTOR 失效
公开(公告)号：JPH06339837A
公开(公告)日：1994-12-13
申请号：JP15424193
申请日：1993-05-31
申请人： TOYODA MACHINE WORKS LTD
发明人： HOTTA SHIGEO , YAMAKAWA YOICHI , ITO AKIRA
IPC分类号： B23Q17/22 , B24B47/22 , B24B49/10 , B24B53/00
摘要： PURPOSE:To provide a contact detector by which contact between a grinding wheel and an AE sensor can be detected reliably without being influenced by a noise component even if nonunifomity is caused in rotation of the grinding wheel. CONSTITUTION:An elastic wave generated in a detecting pin 16 by contact of a grinding wheel 9 and ejective collision of coolant is detected by an AE sensor 18, and is outputted as an elastic wave signal. A sampling circuit 21 extracts data to show contact and noncontact of the grinding wheel with every phase angle equivalent to a sampling period by sampling the elastic wave signal from the AE sensor 18 in a period equivalent to 1/128 of single rotation of the grinding wheel 9. When a signal processing circuit 22 confirms that a sampled position in single rotation of the grinding wheel of the extracted data to show contact of the grinding wheel 9 and a sampled position of data to show contact of the grinding wheel in the next single rotation coincide with each other or are adjacent to each other, it is judges as contact between the grinding wheel and the detecting pin.

3. 发明专利

JPH06324732A TEACHING POINT TRACING TYPE DEVICE WITH OPERATION PROGRAM CORRECTION DEVICE 失效
公开(公告)号：JPH06324732A
公开(公告)日：1994-11-25
申请号：JP11059193
申请日：1993-05-12
申请人： TOYODA MACHINE WORKS LTD
发明人： ITO AKIRA , OKADA SATORU
IPC分类号： B23K9/127 , B23K26/00 , B23Q35/12 , G05B19/42 , G05B19/427
摘要： PURPOSE:To automate the correction work of an operation program step causing a large deviation between an intermediate point located between teaching points and a marking line by correcting the program step while using the position of a detected marking line as a new teaching point when a large deviation is in existence between the intermediate point located between teaching points and the marking line. CONSTITUTION:An intermediate point position arithmetic operation means C obtains an intermediate point between teaching points through arithmetic operation. An object position arithmetic operation means B performs processing of information from a sensor J with an actuator H moved, to detect an ideal locus line of the sensor J. A deviation arithmetic operation means D calculates a deviation between the intermediate point position and the ideal tracing line position and a permission value comparison means F compares the deviation with permissible deviation. An operation program correction means G corrects the operating program by adding the ideal tracing line position as a new teaching point when the permission value comparison means F discriminates it that the deviation value exceeds the permissible value. The operation program correction means G stores again the corrected operation program to an operation program storage means A.

4. 发明专利

JPH0620701B2 失效
公开(公告)号：JPH0620701B2
公开(公告)日：1994-03-23
申请号：JP19033885
申请日：1985-08-29
申请人： TOYODA MACHINE WORKS LTD
发明人： HAYASHI TAKEHIKO , ITO AKIRA
IPC分类号： B23Q7/00 , B23Q39/04

5. 发明专利

JPH07223149A CONTACT DETECTION DEVICE 失效
公开(公告)号：JPH07223149A
公开(公告)日：1995-08-22
申请号：JP3907494
申请日：1994-02-14
申请人： TOYODA MACHINE WORKS LTD
发明人： ITO AKIRA , YAMAKAWA YOICHI , SUGIURA HIROTAKA , HOTTA SHIGEO
IPC分类号： B23Q17/22 , B24B47/22 , B24B49/10
摘要： PURPOSE:To provide a contact detection device capable of quickly detecting contact between a grinding wheel and a detection pin, regardless of the condition of grinder surface. CONSTITUTION:An elastic wave generated on a detection pin, due to the contact of a grinding wheel 9 and the blow of a coolant, is detected with an AE sensor amplifier 20 and, then, outputted as an elastic wave signal. Also, the gate circuit 22a of a computer 22 samples an elastic wave signal from an elastic wave detection means 20, according to a period corresponding to 1/128 of one revolution of the grinding wheel 9, thereby extracting data showing the contact and non-contact thereof. The CPU 22f of the computer 22 judges that the contact of the wheel 9 is taking place, when data showing the contact of a detection object 9 extracted during 16 revolutions of the wheel 9 exceeds 1/4 of whole data.

6. 发明专利

JPH04269151A WORK DEVICE IMPROVED WITH WORK COMPLETING PROPERTY 失效
公开(公告)号：JPH04269151A
公开(公告)日：1992-09-25
申请号：JP7735391
申请日：1991-02-18
申请人： TOYODA MACHINE WORKS LTD
发明人： MINOSHIMA HIROHITO , ITO AKIRA
IPC分类号： B23K9/12 , B23K26/02 , B23Q15/12
摘要： PURPOSE:To get the work termination point vicinity not worked because of there being a following up delay in a tool moving device, in case of the tool motion being turned OFF immediately after indication with the work termination point coordinate to a tool moving device, in a work machine moving the tool with the tool moving device while motioning the tool. CONSTITUTION:The actual coordinate of a tool is detected, the deviation in this and a work termination point coordinate is operated and the tool is held in a motion ON state until this becomes zero really.

7. 发明专利

JPS61284365A WORK TRANSPORT DEVICE 失效
公开(公告)号：JPS61284365A
公开(公告)日：1986-12-15
申请号：JP12304985
申请日：1985-06-06
申请人： TOYODA MACHINE WORKS LTD , TOYOTA MOTOR CORP
发明人： KATO KOICHI , ITO AKIRA , NAKAGAWA TOMOYUKI
IPC分类号： B23Q39/04 , B65G47/80 , B65G47/86
摘要： PURPOSE:To provide possibility of using a motor with less output by putting a work in detention with the detent part of an arm, allowing the work to travel on a support through revolutions of this arm and thereby lessening the load borne by the revolution drive part. CONSTITUTION:A supporting rod 2 fixed to a basis is threaded in a rotary shaft 4 with a bearing interposed. Four arms 20 stretching horizontally are fixed to said rotary shaft 4, and at the tip two knock pins 21 to detain with a work 100 are installed. Two concentrical rails 22 with their center situated on said supporting rod 2 are fixed to the basis through a fixing table 23. The work 100 travels on these rails 22 while its horizontal motion is restricted by the knock pins 21. The arms 20 are revolved by a drive device, and the work 100 is transported to the position of each processing station 40, 50. According the load borne by the drive part is merely the weight of arms and the friction force between the work detained with each arm and the rails, which will require only a motor with less output.

8. 发明专利

JP2003189662A CONTROL SIGNAL DECIDING METHOD IN MICROCOMPUTER 审中-公开
公开(公告)号：JP2003189662A
公开(公告)日：2003-07-04
申请号：JP2001381314
申请日：2001-12-14
申请人： TOYODA MACHINE WORKS LTD
发明人： ITO AKIRA , IWAZAWA MASAHIDE , IWATA SEIKI , YAMADA YASUSHI
IPC分类号： H02P7/06 , H02P5/06
摘要： PROBLEM TO BE SOLVED: To provide a control signal deciding method in a microcomputer which can decide the existence of a signal with a high frequency without applying a load. SOLUTION: A monitor signal line Ms connected to a signal line L is connected to an interrupt input port 20 of a microcomputer 11. A rectangular pulse signal SG outputted by the microcomputer 11 is inputted to the interrupt input port 20 via the monitor signal line Ms. The microcomputer 11 re-writes a state of a flag F allotted to a RAM 11b built in the microcomputer 11 according to the rectangular pulse signal SG inputted to the interrupt input port 20. The microcomputer 11 accesses the RAM 11b every one millisecond according to a decision program stored in a ROM 11a to decide the state of the flag F stored in the RAM 11b. If it is decided that the state of the flag F is '1', the microcomputer 11 resets the flag F to put the flag F into a '0' state. COPYRIGHT: (C)2003,JPO

9. 发明专利

JP2003182616A CONTROLLER FOR ELECTRIC POWER STEERING SYSTEM 审中-公开
公开(公告)号：JP2003182616A
公开(公告)日：2003-07-03
申请号：JP2001383008
申请日：2001-12-17
申请人： TOYODA MACHINE WORKS LTD
发明人： ITO AKIRA , IWAZAWA MASAHIDE , IWATA SEIKI , YAMADA YASUSHI
IPC分类号： B62D6/00 , B62D5/04 , B62D101/00 , B62D119/00
摘要： PROBLEM TO BE SOLVED: To improve the suppression of a degradation in a steering feeling under anomaly occurrence in a vehicle speed detection system. SOLUTION: An anomaly presence determining means 39 determines whether an anomaly is present in vehicle speed detection or not from vehicle speed detection information acquired from a vehicle speed sensor 24. Under an anomaly in vehicle speed detection, the anomaly presence determining means 39 outputs a signal affirming anomaly occurrence to a control vehicle speed commanding means 41. In response to the input of the signal affirming anomaly occurrence, the control vehicle speed commanding means 41 commands compensating means 35 to 38 to shift from a state using a current vehicle speed Vz as a control vehicle speed to a state using temporary vehicle speeds V1 to V4 as a control vehicle speed. COPYRIGHT: (C)2003,JPO

10. 发明专利

JP2003182600A ELECTRIC POWER STEERING DEVICE 审中-公开
公开(公告)号：JP2003182600A
公开(公告)日：2003-07-03
申请号：JP2001382826
申请日：2001-12-17
申请人： TOYODA MACHINE WORKS LTD
发明人： IWAZAWA MASAHIDE , ITO AKIRA , YAMADA YASUSHI , IWATA SEIKI
IPC分类号： B62D5/04
摘要： PROBLEM TO BE SOLVED: To solve the problems that a current in a battery 31 is consumed and the battery 31 may run out because a great power supply variation takes place immediately after an ignition switch 30 is turned on and noise (incorrect pulse) generated by the power supply variation induces an electric motor 6 to be driven for assistance control in spite of no start of an engine. SOLUTION: This electric power steering device comprises a masking means 32 for applying masking processing to prevent an engine speed signal N or a vehicle speed signal V from being received from an engine speed sensor 17 or a vehicle speed sensor 16 in a certain time t0 after the ignition switch 30 is turned on. COPYRIGHT: (C)2003,JPO

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