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1. 发明专利

JPH04355605A DRIVING OUTPUT CONTROL METHOD FOR MOTOR VEHICLE 失效
公开(公告)号：JPH04355605A
公开(公告)日：1992-12-09
申请号：JP15589691
申请日：1991-05-30
申请人： HONDA MOTOR CO LTD , MITSUBA ELECTRIC MFG CO
发明人： TORIYAMA MASAYUKI , SHIGEMATSU KATSUYA , KANEKO YOSHIHIRO
IPC分类号： B60L15/10 , B60L15/20 , H02P6/06 , H02P6/08
摘要： PURPOSE:To prevent quick start of a motor vehicle being subjected to drive control with an output signal proportional to an input signal. CONSTITUTION:Upper limit of drive control output signal is set at the maximum duty output, i.e., 100%, of PWM control variable with the voltage detected through a throttle sensor in a vehicle speed region higher than 30Km/h, set at 50% for the vehicle speed of 0Km/h, and limited below a line connecting between the 50% point for the vehicle speed 0Km/h and the 100% point for the vehicle speed 30Km/h in the vehicle speed region between 0Km/h and 30Km/h. Since the Upper limit of the drive control output signal is set lower than 100% at the time of starting, driving output is suppressed even if the vehicle is accelerated with full-open throttle resulting in a smooth acceleration feeling.

2. 发明专利

JPH05300795A 失效
公开(公告)号：JPH05300795A
公开(公告)日：1993-11-12
申请号：JP12129792
申请日：1992-04-15
申请人： MITSUBA ELECTRIC MFG CO
发明人： YAMAGISHI TOMOO , SHIGEMATSU KATSUYA
IPC分类号： B60N2/06 , H02P5/00 , H02P7/67
摘要： PURPOSE:To simultaneously operate two motor driving circuits by providing an interlock circuit for inhibiting an operation of the driving circuit in which a CPU not selected by a selection switch is not concerned. CONSTITUTION:Motor drive controllers 1, 51 for motor-driven power seats having motors 6, 56 for displacing a driver's seat and an assistant driver's seat of a vehicle in sliding directions have selection switches 5 for selecting manual or automatic operation for one of the driver's seat and the assistant driver's seat. In this case, a sub-driving circuit 20 of another system from a main driving circuit 2 connected to a CPU 2 is provided in the controller 1 (similar in the 52). The operation of the sub-driving circuit 20 is restricted by an interlock circuit which includes a transistor 19 to be turned ON only when the other input terminal of a NOR gate 22 is grounded by the switch 5 and a state of an output terminal of FF24 becomes a low level.

3. 发明专利

JPH07274565A METHOD OF DETECTING OVERLOAD OF MOTOR 失效
公开(公告)号：JPH07274565A
公开(公告)日：1995-10-20
申请号：JP8764194
申请日：1994-03-31
申请人： MITSUBA ELECTRIC MFG CO
发明人： KAWAKURA TAKAYUKI , MORISHIMA YOSHIO , OGINO SEIICHI , SHIGEMATSU KATSUYA , SHIMADA MASASHI
IPC分类号： G01L3/00 , B60J1/17 , G01L5/00 , H02H7/093 , H02P3/08 , H02P7/06
摘要： PURPOSE:To detect a constant overload at all times without being subject to the effect of the magnitude of applied voltage by discriminating load as overload when pulses are not generated next before a timer interrupt time passes after the time of the preceding generation of pulses. CONSTITUTION:When an interrupt signal is generated at an earlier time than pulses are generated, a period tn+1 based on the current generation of pulses is measured at the step ST6, and a step ST7 is returned to a step ST3 while using the period tn+1 as a pre-period tn in the next cycle at the step ST7. When current pulses are not generated when the interrupt signal is generated, load fluctuation reaches an overload level, and a step ST5 proceeds to a step ST8. Accordingly, the measured period is compared with a discriminating value multiplied by a coefficient read on the basis of a pre-period measured at a time before by one step and the pre-period from prepared map data, and overload is discriminated, thus allowing the detection of overload not affected by the fluctuation of the applied voltage of a motor.

4. 发明专利

JPH07184392A CONTROL CIRCUIT FOR BRUSHLESS MOTOR 失效
公开(公告)号：JPH07184392A
公开(公告)日：1995-07-21
申请号：JP34744193
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 obtain a stable braking force without being affected by the rotating speed of a motor. CONSTITUTION:Switching means 3 for selectively setting short-circuit conditions for respective phase coils of a motor in order to apply a braking current when braking a motor 1 and also control means 4 for the variable control of short- circuit time of coils by switching means based on an electrical angle are provided. By doing this, a braking force required can easily be secured even though the period of a braking current changes according to the rotating speed of the motor, and the braking force can be almost univocally established as an electrical angle independently from the rotating speed. Therefore, a stable braking force can be secured regardless of the simplicity of the control method.

5. 发明专利

JPH07184391A CONTROL CIRCUIT FOR BRUSHLESS MOTOR 失效
公开(公告)号：JPH07184391A
公开(公告)日：1995-07-21
申请号：JP34744093
申请日：1993-12-24
申请人： MITSUBA ELECTRIC MFG CO
发明人： MARUTA KAZUHIKO , SHIGEMATSU KATSUYA , TAKEMOTO YOSHIHIRO
IPC分类号： H02P6/08 , H02P6/06 , H02P6/24
摘要： PURPOSE:To prevent power regeneration during braking and make braking force variable by selectively setting respective coils to short-circuit conditions, determining the end point of a phase interval as a point where no power regeneration is performed and releasing the short-circuit conditions at that point. CONSTITUTION:Power of a power supply 2 is supplied to a motor 1 by switching means 3. This switching means 3 is ON/OFF controlled by control means 4. Also, the position of a rotor of a motor 1 is detected by rotor position detecting means 5. By doing the above, the short-circuit conditions of coils can be released in a state where no braking current is flowing or a negative component current is flowing, so that braking can be performed without performing power regeneration. Moreover, by making the start point of the short-circuit conditions variable, the braking force can be adjusted by varying conducting conditions of coils. Therefore, the braking force can be controlled under changing conditions without charging.

6. 发明专利

JPH07274564A METHOD OF DETECTING OVERLOAD OF MOTOR 失效
公开(公告)号：JPH07274564A
公开(公告)日：1995-10-20
申请号：JP8764094
申请日：1994-03-31
申请人： MITSUBA ELECTRIC MFG CO
发明人： OGINO SEIICHI , SHIGEMATSU KATSUYA , MORISHIMA YOSHIO , KAWAKURA TAKAYUKI , SHIMADA MASASHI
IPC分类号： G01L5/00 , B60J1/17 , G01L3/00 , H02H7/093 , H02P3/08 , H02P7/06
摘要： PURPOSE:To detect constant overload at all times without depending upon the magnitude of applied voltage in the detection of the overload of a motor. CONSTITUTION:A period tn is measured from pulses continuously generated with the revolution of a motor (ST1), and the next period tn+1 is measured when the next pulses are generated. A cycle is continued while the period tn+1 is used as a new one tn when the period tn+1 is smaller than a discrimination value consisting of the sum of the period tn and a value obtained by multiplying the square of the period tn by a constant B, and load is discriminated as overload and the motor is stopped when the period tn+1 is larger than the discrimination value (ST2-ST5). The constant B is acquired by multiplying each constant determined by the used motor by a coefficient correcting a delay by a mechanical time constant. Accordingly, overload can be discriminated by formula using the period without being converted into the number of revolution, thus simplifying processing, then allowing discrimination without being subject to the effect of voltage fluctuation.

7. 发明专利

JPH0717359A SECURITY CONTROLLER 失效
公开(公告)号：JPH0717359A
公开(公告)日：1995-01-20
申请号：JP18938593
申请日：1993-06-30
申请人： MITSUBA ELECTRIC MFG CO
发明人： OGINO SEIICHI , SHIGEMATSU KATSUYA , OGAWA TOMOYUKI
IPC分类号： B60R25/00 , B60R25/104 , B60R25/30
摘要： PURPOSE:To prevent the generation of alarm due to the erroneous operation by installing an indicator which represents the operation state of a CPU and allowing the supply of an alarm output only in the case where the signal representing the operation of the CPU is supplied from an indicator signal detecting circuit. CONSTITUTION:When a CPU operates in a monitored state, an indicator signal is outputted from the B terminal of the CPU, and the signal is inputted into an indicator 11 through an indicator output circuit 10, and a diode LED 1 is flashed. At the same time, the above signal is inputted into an indicator signal detecting circuit 13, and an H-level signal is outputted to the second input terminal of a two-input AND gate G1 by the operations of the transistors Tr1-Tr4. While, in a nonmonitored state, an L-level signal is outputted from the B terminal of the CPU 1, and an L-level signal is outputted at the second input terminal of the two-input AND gate G1. In this case, the gate G1 operates an alarm means 14 through an output circuit 4 only in the case where both the first and second inputs are at the H-level, i.e., only in the monitored state. G1. In this case, the gate G1 operates an alarm means.

8. 发明专利

JPH04347541A POWER SUPPLY CIRCUIT FOR COMPUTER 失效
公开(公告)号：JPH04347541A
公开(公告)日：1992-12-02
申请号：JP14939891
申请日：1991-05-24
申请人： MITSUBA ELECTRIC MFG CO
发明人： SHIGEMATSU KATSUYA , TAKEMOTO YOSHIHIRO
IPC分类号： G06F1/26 , G06F1/32 , H02J7/00 , H02J9/00 , H02J9/06
摘要： PURPOSE:To suppress current consumption in the data retaining operation of a computer. CONSTITUTION:A power supply circuit for feeding power from a battery 15 to a computer 10, which executes data retaining operation when a main switch 16 is turned OFF, comprises a first high current regulator 17, a second low current regulator 18, and a watchdog circuit 26 for delivering a reset signal to the computer 10, When the computer 10 executes various operations, current is fed from the first regulator 17 to the computer 10 and when the computer 10 performs data retaining operation, power is fed to the computer 10 only from the second regulator 18. When the main switch 16 is turned OFF, power supply line between the first regulator 17 and the watchdog circuit 26 is interrupted and a transition is made for the computer 10 to stop mode operation in a short time.

9. 发明专利

JPH04347540A POWER SUPPLY CIRCUIT FOR COMPUTER 失效
公开(公告)号：JPH04347540A
公开(公告)日：1992-12-02
申请号：JP14939791
申请日：1991-05-24
申请人： MITSUBA ELECTRIC MFG CO
发明人： SHIGEMATSU KATSUYA , TAKEMOTO YOSHIHIRO
IPC分类号： G06F1/26 , G06F1/32 , H02J7/00 , H02J9/00 , H02J9/06
摘要： PURPOSE:To suppress current consumption in the data retaining operation of computer. CONSTITUTION:A computer, executing data retaining operation when a main switch 15 is turned OFF, comprises a high current first regulator 18, a low current second regulator 19, and a watchdog circuit 25 delivering a reset signal to the computer 10, wherein a current is fed from the first regulator 18 to the computer when the computer 10 executes various operations. When the computer 10 performs data retaining operation, power is fed to the computer only from the second regulator 19 and when the main switch 15 in turned OFF, a reset signal line between the computer 10 and the watchdog circuit 26 is interrupted and a transition is made fot the computer 10 to stop mode operation in a short time.

10. 发明专利

JPH08293238A DETECTING CIRCUIT FOR CHECKING CONTACT OF RELAY 失效
公开(公告)号：JPH08293238A
公开(公告)日：1996-11-05
申请号：JP12087695
申请日：1995-04-21
申请人： MITSUBA ELECTRIC MFG CO
发明人： TAKANO HIROHIKO , SHIGEMATSU KATSUYA , IWASAKI TAMOTSU , HIKIMA TOSHIO
IPC分类号： H01H9/54 , H01H47/00
摘要： PURPOSE: To detect the on-lock failure of the contact of a relay by using a simple circuit. CONSTITUTION: A relay 3 is connected to the power side terminal of a motor 1, a FET 4 is connected to the ground side terminal of the motor, the turning on and off of the relay is controlled by means of signals from the terminal RLY of a CPU 5, and the motor is driven and controlled by means of a PWM control signal from a terminal PWM. At the node of the relay and the power side terminal of the motor, a capacitor is connected in parallel with the motor. The CPU is provided with a voltage detecting terminal for detecting the voltage of the power side terminal of the capacitor. While the contact of the relay is open, a signal for one waveform of the PWM control signal is output, and the magnitude of change in terminal voltage of the capacitor is determined, so that if no change is detected, the relay can be determined as having an on-lock failure. Therefore, the on-lock failure of the relay can be detected simply by monitoring the terminal voltage of the capacitor provided in parallel with the motor.

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