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1. 发明专利

JPH05316787A START CONTROL METHOD FOR BRUSHLESS MOTOR 失效
公开(公告)号：JPH05316787A
公开(公告)日：1993-11-26
申请号：JP14329592
申请日：1992-05-08
申请人： HONDA MOTOR CO LTD , MITSUBA ELECTRIC MFG CO
发明人： TORIYAMA MASAYUKI , HONDA SATOSHI , MARUTA KAZUHIKO , MOCHIZUKI WATARU
IPC分类号： H02P29/00 , H02P5/00 , H02P6/20 , H02P6/02
摘要： PURPOSE:To realize smooth control of motor drive duty ratio at the time of starting through such starting control as a starting operation mode can be executed again only upon elapse of a predetermined time after finish of starting operation mode. CONSTITUTION:Starting process is executed according to a main program stored in a CPU 7 and a decision is made whether a signal is inputted from a throttle sensor 10 when r.p.m. of a motor 1 is lower than a stop decision r.p.m. A decision is made whether a predetermined time has elapsed upon provision of a signal from the throttle sensor 10, and driving signals are delivered from output terminals O1-O6 to a driving circuit 14 if the predetermined time has elapsed. The driving signals are then subjected to PWM control at a predetermined duty ratio. When a timer for limiting the execution times of starting process is provided, error of duty signal due to processing lag can be suppressed sufficiently and switching of starting process causes no hunting of duty ratio to be imparted to the motor 1.

2. 发明专利

JPH05316610A DRIVING DEVICE FOR MOTOR-DRIVEN VEHICLE 失效
公开(公告)号：JPH05316610A
公开(公告)日：1993-11-26
申请号：JP14329492
申请日：1992-05-08
申请人： HONDA MOTOR CO LTD , MITSUBA ELECTRIC MFG CO
发明人： TORIYAMA MASAYUKI , HONDA SATOSHI , KAWAKURA TAKAYUKI , MARUTA KAZUHIKO
IPC分类号： B60L15/00 , B60L15/20 , H02P6/08 , H02P6/02
摘要： PURPOSE:To prevent a motor driving level from becoming unstable at the time of starting a motor-driven vehicle. CONSTITUTION:The driver for a motor-driven vehicle of the type for outputting a drive duty signal to drive a motor only when the duty signal exceeds a certain predetermined value sets the predetermined value to a level of an upper limit predetermined value 22 when the signal is in a rising step and to a level of a lower limit predetermined value 23 when the signal is in a falling step. Accordingly, since hysteresis can be set to a predetermined value, even if the signal is varied within a hysteresis region 24, a motor does not repeat starting, slipping, etc.

3. 发明专利

JPH06156196A INTERMITTENT TIME CONTROL METHOD OF WIPER 失效
公开(公告)号：JPH06156196A
公开(公告)日：1994-06-03
申请号：JP33973192
申请日：1992-11-25
申请人： MITSUBA ELECTRIC MFG CO
发明人： KAWAKURA TAKAYUKI , MARUTA KAZUHIKO , MOCHIZUKI WATARU
IPC分类号： B60R16/02 , B60S1/08 , G05B11/36
摘要： PURPOSE:To enable the intermittent operation of a wiper at an appropriate intermittent time interval in traveling in a rainy weather in a daytime and night time respectively. CONSTITUTION:The vehicle signal, the intermittent operation signal from a wiper switch 3, and the headlight operation signal from a headlight switch 4 are received by a main control circuit 1, and a wiper motor 6 is selectively driven according to the output of the main control circuit 1. An intermittent time setting map for the daytime and that for the night time which is shorter than that for the daytime are prepared in the main control circuit 1, the day or the night is judged by the ON/OFF of the headlight switch 4, and the map is selected, and the wiper is intermittently operated by obtaining the intermittent time according to the vehicle speed. This constitution shortens the intermittent time preferably without using the manual operation against the interruption of the visibility due to the headlight by the other vehicle at night, and the intermittent operation of the wiper can be executed.

4. 发明专利

JPH07137605A WIPER CONTROLLER 失效
公开(公告)号：JPH07137605A
公开(公告)日：1995-05-30
申请号：JP30728993
申请日：1993-11-12
申请人： MITSUBA ELECTRIC MFG CO
发明人： MOCHIZUKI WATARU , YAMADA HIROKO , MARUTA KAZUHIKO
IPC分类号： B60S1/08
摘要： PURPOSE:To escape boredom accompanying long driving in rainy weather by automatically switching a wiping speed into various speeds by means of a controller so as to stimulate the organ of vision. CONSTITUTION:Respective coils of a relay RY1 for low speed rotation and a realy RY2 for a high speed rotation of a motor 1 are in contact with a high speed switch SW1 of a manual switch group 2 for high speed wiping movement, while a coil of a relay RY3 is in contact with a low speed switch SW2 for a low speed wiping movement. In addition, a fluctuation controlling circuit 3 is prepared, and its controlling part CPU is provided with input terminals 11, 12 and output terminals O1, O2. The circuit 3 is started by a start switch SW4. At this time, the output terminal O1 is connected to a base of a transistor Tr1, which is in parallel with the low speed switch SW2, so as to excite the coil of the relay RY3, while the output terminal O2 is connected to a base of a transistor Tr2, which is in parallel with the high speed switch SW1, so as to excite the coil of the relay RY2.

5. 发明专利

JPH0632160A METHOD OF CONTROLLING MOTOR FOR ELECTRIC SEAT 失效
公开(公告)号：JPH0632160A
公开(公告)日：1994-02-08
申请号：JP21319792
申请日：1992-07-20
申请人： MITSUBA ELECTRIC MFG CO
发明人： MARUTA KAZUHIKO , ISOMURA TOSHIAKI
IPC分类号： B60N2/22
摘要： PURPOSE:To provide a method of controlling a motor for an electric seat, which improves the feeling in use and can surely shift each mobile part of the electric seat into a desired position. CONSTITUTION:In the method of controlling a motor for an electric seat for shifting one part or the whole of the electric seat used for a vehicle, etc., from an optional shifting start position to an objective shifting stop position, the motor speed becomes lower before braking by decelerating the motor from the middle position before a shifting stop position to the shifting stop position gradually, so the shock vanishes at braking and the motor can be stopped accurately at a desired position, thus the feeling in use of the electric seat and the reliability on position control improve.

6. 发明专利

JPH04193091A CIRCUIT FOR CONTROLLING MOTOR 失效
公开(公告)号：JPH04193091A
公开(公告)日：1992-07-13
申请号：JP32145690
申请日：1990-11-26
申请人： MITSUBA ELECTRIC MFG CO
发明人： ISOMURA TOSHIAKI , MARUTA KAZUHIKO
IPC分类号： B60N2/02 , G05B7/02 , H02P6/04
摘要： PURPOSE:To drive a motor according to the state of a switch, by bringing the motor once into a stopping state when a manual switch is operated in the course of an automatic driving circuit being operated, and by bringing the motor into an operable state when the manual switch is again operated. CONSTITUTION:When a manual switch 4 is operated in the course of an automatic driving, the output of an AND circuit 11 is brought into an L level, and the H level output of a NOT circuit 12 is inputted to an AND circuit 10. Also, in the course of an automatic control, since the H level output of an OR circuit 9 is inputted to the AND circuit 10, the H level signal is outputted from the output terminal Q of a flip-flop 13. Therefore, since a transistor T9 is brought into OFF-state, a manual driving circuit 8 is in a stopping state. Further, by turning off the manual switch 4, the flip-flop 13 is reset. Therefore, the transistor T9 is brought into ON-state, and the manual driving circuit 8 is brought into an operable state.

7. 发明专利

JPH08175336A WIPER CONTROLLER 失效
公开(公告)号：JPH08175336A
公开(公告)日：1996-07-09
申请号：JP33806694
申请日：1994-12-27
申请人： MITSUBA ELECTRIC MFG CO
发明人： YAMADA HIROKO , MARUTA KAZUHIKO , MOCHIZUKI WATARU
IPC分类号： B60S1/08
摘要： PURPOSE: To enable a viewing field to be secured properly during steering control by switching the wiping-action mode of a wiper to that in which the amount of wiping is great in accordance with an increase in detected amount of steering angle caused by the driver. CONSTITUTION: When a changeover switch SW4 is closed to the side of an input terminal 12 in order to perform intermittent control, a control portion CPU enters an intermittently operating mode. Then steering-angle pulses inputted from steering angle sensors 4, 5 are sampled and a controlled variable Δθ of steering per unit time is calculated. Then the controlled variable Δθ of steering is compared with a first threshold N1, and if Δθ N1, the controlled variable Δθof steering is compared with a second threshold N2, and if Δθ N2, a transistor Tr2 is driven for the wiping action in a high-speed mode.

8. 发明专利

JPH07184394A CONTROL CIRCUIT FOR BRUSHLESS MOTOR 失效
公开(公告)号：JPH07184394A
公开(公告)日：1995-07-21
申请号：JP34744393
申请日：1993-12-24
申请人： MITSUBA ELECTRIC MFG CO
发明人： MARUTA KAZUHIKO , SHIGEMATSU KATSUYA
IPC分类号： H02P6/08 , H02P6/06 , H02P6/24
摘要： PURPOSE:To provide a control circuit for a brushless motor capable of variably controlling a braking force by using a low function microcomputer. CONSTITUTION:Switching means 3 for individually setting each coil of a motor 1 to short-circuit conditions and also control means 4 for ON/OFF controlling the switching means 3 for each coil are provided, and the control means 4 selectively controls the number of coils set to short-circuit conditions. Therefore, each coil is continuously set to a short-circuit state based on an electrical angle of the motor, so that a braking current as a generating source of a braking force can be obtained and therefore the braking force can be secured; and this braking force becomes variable according to the number of coils selected because the number of coils is selectively set to short-circuit conditions by the control means. Thus, a stable braking force can be secured even though the control is very simple.

9. 发明专利

JPH07184393A CONTROL CIRCUIT FOR BRUSHLESS MOTOR 失效
公开(公告)号：JPH07184393A
公开(公告)日：1995-07-21
申请号：JP34744293
申请日：1993-12-24
申请人： MITSUBA ELECTRIC MFG CO
发明人： MARUTA KAZUHIKO , SHIGEMATSU KATSUYA , MOCHIZUKI WATARU
IPC分类号： H02P6/08 , H02P6/06 , H02P6/24
摘要： PURPOSE:To provide a control circuit for a brushless motor capable of variably controlling a braking force by using a low-function microcomputer. CONSTITUTION:Switching means 3 for setting a plurality of coils of a motor 1 to short-circuit conditions and also a control means 4 for ON/OFF controlling the switching means 3 over a phase interval based on an electrical angle of a motor 1 are provided, and the control means 4 selectively controls the phase intervals so as to thin off the phase intervals. By doing this, each coil is set to short-circuit conditions continuously based on an electrical angle of the motor, and therefore a braking current as a generating source of braking force can be obtained and thus braking force can be secured. This braking force becomes variable by thinning off the phase intervals for short-circuiting the coils. Thus, stable braking force can be secured regardless of the simple control.

10. 发明专利

JPH07137606A CONTROL METHOD FOR WIPER 失效
公开(公告)号：JPH07137606A
公开(公告)日：1995-05-30
申请号：JP31426593
申请日：1993-11-18
申请人： MITSUBA ELECTRIC MFG CO
发明人： MOCHIZUKI WATARU , SUZUKI HITOSHI , MARUTA KAZUHIKO
IPC分类号： B60S1/08
摘要： PURPOSE:To obtain an optimum operating mode corresponding to a wetted state of a surface to be wiped by estimating the quantity of rain drops sticking to a windshield based on the measured value corresponding to a working load to a wiper blade and setting an operating mode based on the result of this estimation. CONSTITUTION:An automatic mode setting circuit 5, which operates when a manual/automatic switching device 4 selects an automatic mode, in addition to a motor control part 3, which controls a wiper motor 2 based on an operating mode (high speed, low speed, and interval) set by a manually setting part 1, are prepared. In the automatic mode setting circuit 5, a pulse of rotation of a motor is detected by a pulse detecting part 6, and, based on this pulse of rotation, the wiping speed of a wiper is calculated by a wiping speed calculating part 7. Then, corresponding to the wiping speed, a wiping mode of the wiper is selected/set by a mode setting part 8. In this case, the relation between the wiping time and the quantity of rain drops on a windshield, which can be obtained in advance from an experiment, is stored in the mode setting part, in the form of a map, for instance.

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