JPS5950834A - Automatic varied-angle controller for electrically driven remote control mirror - Google Patents

Abstract

PURPOSE:To improve operation performance and safety when a car is put into a garage by permitting automatic angle-change of a mirror to a prescribed position only by setting a speed change gear to back position and putting the mirror into standstill state and allowing the mirror to be restored to the original position through the return operation to the neutral position. CONSTITUTION:When a speed-change gear is operated to back position and a switch SW1 is turned ON, OR circuits OR2, OR1, OR5, and OR4 are set in H, and motors ML and MR are brought into conduction, and right and left mirrors are angle-changed downward, and when the mirrors angle-change to a prescribed position, limit switches SW2 and SW3 are turned ON, and the mirrors stop. When the speed-change gear is returned to the neutral position after the completion of putting car into a garage, the switch SW1 is turned OFF, and each output of the OR circuits OR1 and OR4 becomes ''H'', and motors ML and MR are brought into conduction, and the right and left mirrors start restoration to the upward direction. At this time, limit switches SW2 and SW3 are turned OFF, and counters 4a and 4b count down each holding count to zero, and conduction is suspended, and the right and left mirrors return to eye point and stop. Thus, backward operation such as putting car into garage is facilitated.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic capsular angle control system for an electric remote control mirror.

For example, when the vehicle is parked in a garage or pulled over, it is better to move the mirror from the most selective position during normal driving, i.e. the eye point, to the side of the vehicle body or downwards. It is convenient for visually checking areas near tires, such as road shoulders, side ditches, and curbs. This is sometimes true for the mirror on the opposite side of the vehicle from the driver's seat (left side in Japanese cars).

Incidentally, the angle of the conventional dynamic remote control mirror, such as when the vehicle is parked in the garage, has to be changed manually each time while visually checking the mirror.

However, it is difficult and time-consuming to visually search for the optimal position of the mirror when parking the vehicle. Furthermore, the same thing can be said when returning the vehicle to its original position (eye point) after reconnecting the vehicle, etc., which is extremely troublesome and inefficient. Moreover, since such a mirror angle changing operation is equivalent to a transmission switching operation, there is a drawback that the operation becomes even more complicated.

The present invention allows the mirror to be used as an eye point when parking in a garage, pulling up to the side, etc.) 7! In view of the fact that the safety of turning the mirror from 1) to the side of the vehicle body or downwards is highest when the vehicle is backed up, the mirrors will automatically shift to the specified position simply by operating the vehicle's transmission to the reverse position. At the same time, by returning the gear change lever (-) from the reverse position to the neutral position, the mirror automatically and accurately returns to its original position, thereby reducing the effort and time required to change the mirror angle and return it. The purpose of the present invention is to provide an automatic angle change control device for an electric remote control mirror, which greatly reduces costs and improves operability and safety when turning a car into a JJF, moving to the side, etc.

The present invention will be described in detail below with reference to the drawings.

The first part is a basic example and block diagram of an automatic angle control device for an electric remote control mirror according to the present invention.
In FIG. 1, 1 is a reverse switch circuit. This circuit 1 operates when the transmission of a vehicle (not shown) is operated to the neutral position 74 m: When the transmission is operated to the forward bank position, its output voltage changes and an ON signal is output, and conversely, when the transmission is returned from the reverse position to the neutral position, the output voltage changes in the opposite way to that described above, and outputs an OFF signal. 2 is a limit switch circuit whose output voltage changes when the mirror is moved from its normal position (eye point) to a preset position, in this case downward to the same predetermined position 1k, and 3 is a limit switch circuit that changes the output voltage continuously at a constant cycle. A pulse oscillation circuit 4 that generates pulses is an up-down (hereinafter abbreviated as tJ/D) counter circuit that performs up-count or down-count operations in response to pulses from the circuit 3.

Reference numeral 5 denotes a gate circuit which, in response to the ON signal from the reverse switch circuit 1, starts the up-counting of the U/D counter circuit 4 and outputs a mirror deflection signal which deflects the mirror downward. When the output signal changes, the up-counting of the U/1) counter circuit 4 is stopped, and the output of the mirror angle change signal is also stopped.

Further, the OFF signal from the reverse switch circuit 1 causes the U/lJ counter circuit 4 to start down counting, and a mirror return signal that returns the mirror to its normal position is applied until the count value of the U/D counter circuit 4 becomes zero. Output up to.

Reference numeral 6 denotes a mirror drive circuit which operates a motor (not shown) of the electric remote control mirror 7 or a motor and a solenoid to drive the mirror in response to an output signal from the gate circuit 5, and 8 drives the mirror via the gate circuit 5. Gives a signal to the drive circuit 6.

Manual switch circuit for manually driving the mirror in the desired direction for eye point setting, etc. 9 is Ll/I) Counter circuit 40 Power is supplied to the manual switch circuit 8 only when the count value is zero, and the mirror is manually operated. In other words, it is a manual switch power supply circuit that cuts off the power to the manual switch circuit 8 during the mirror automatic angle change/return operation, and disables the mirror manual angle change.

FIG. 2 is a circuit diagram showing a specific example of the apparatus of the present invention shown in FIG. 1, and in FIG. 2, numerals 1 to 9 are the same as those in FIG. 1. Of these, the reverse switch circuit 1 includes a reverse switch SW and a resistor It.

In this case, the reverse switch SWI turns ON when the transmission of the vehicle (not shown) is operated from the neutral position to the reverse position, and turns OFF when the transmission is returned from the reverse position to the neutral position, and one end of the reverse switch SWI is connected to the Shoden clay. , the other end is grounded via a resistor. In addition, the limit switch circuit 2 includes a left mirror limit switch SW2 that is turned ON when the left mirror is deflected downward and reaches a predetermined position, and a left mirror limit switch SW2 that is turned ON when the right mirror is deflected downward and reaches a predetermined position. Right mirror limit switch SW
3 and resistors 1t, , it,. in this case,
Limit switch SW3. One end of each S-include 3 is grounded, and the other end is connected to the positive power source via resistors R, It3. Furthermore, the pulse oscillation circuit 3 includes an inverter INV,
.

INV, , resistance It4. R, and condenser length C5 are connected as shown.

The other end of the previous Ht'J reverse switch SWI, that is, the output jlla of the reverse switch circuit 1, is connected to the AND circuit AN.
I), is connected to the second input terminal of NOR circuit N(
The other end of the left mirror limit switch SW2, that is, the left mirror output end 2a of the limit switch circuit 2 is connected to the first input terminal of the AND circuit A.
Connected to the first input terminal of NJJ1.

Further, the output terminal 3a of the pulse generating/lowering circuit 3 is connected to the first input terminal of the NOR time %N (Jlt) whose output terminal is U/1) connected to the clock input terminal 'I' of the counter 4a. .

In addition, the U/L) counter 4a has the BCIJ output terminal t+-4Jn connected to the first to fourth human power vi of the NOR circuit N0FL3.
A control terminal for switching the Ll/Ll count operation [J/IJ is connected to the output terminal of the AND circuit AND, and is connected to the first input terminal of the NOR circuit NOR4. . In this case, the NOR circuit NO)C4 is the second
The input terminal is connected to the output terminal of the circuit N (J , and the second input terminal of the NOR circuit N0FL.Furthermore, the AND circuit AND.

The output terminal of the NOR circuit N0R8 is connected to the first input terminal of the OR circuit 0f-C2, and the output terminal of the NOR circuit N0R8 is connected to the first input terminal of the NOR circuit 0f-C2.
tt, is connected to the second input terminal of the terminal.

The output terminal of the OR circuit (JIt) is an N type transistor whose emitter is grounded.
t6, and the collector of the transistor Trl is a PNP transistor i' r ! whose emitter is connected to the positive power supply +. The collector of the transistor 1r! is connected to one end of the solenoid SL whose other end is grounded. Here,
The solenoid SL is used as a means for switching the left mirror upward, downward, left, and right. The output end of the OR circuit O1 (, connected to the collector of
Further, the emitter of the transistor 1r3 is connected to the positive power supply +. The output terminal of the OR circuit UIt is connected via a resistor R++4' to the base of an NPN transistor 1'r6 whose emitter is grounded. In this case, the collector of the transistor Trs is the PNP transistor Tr.
The emitter of transistor Tr6 is connected to the positive power source. Here transistor l
A resistor l(. is connected between the collector connection points of 'rs and Trs and between the bases of the transistor Tr3, and between the collector connection points of the transistors 1'rm and Tr4 and the bases of the transistor i'r@. is the resistance RI
o is connected.

Further, a left mirror drive motor ML is connected between the collector connection points of the transistors Trl and Tr4 and between the collector connection points of the transistors T rl and i're.

Note that the output end 1a of the reverse switch circuit 1.

Limit switch circuit 20-stone mirror output end 2b, pulse oscillation circuit wI3 output end 3a, right mirror drive motor MR, and right mirror deflection direction switching solenoid SR
A circuit similar to the above-mentioned circuit configured between the front end 1a, 2a, and 3a and the motor ML and the solenoid SL is connected between the front end 1a, 2a, and 3a as shown in the figure.
:) 7ta4b, /7 circuit N0114~NOf import.

Ant times f16ANDtt Off 1f1%iti ~0
1ts + inverter INV,, resistance R, □ ~ I (1
, and the transistor Tr-(~i' r , , K
It is composed of In this case, the NOR circuit N0K3
and NOR circuit N C1it, each output terminal of OR circuit O
The collectors of the output terminals of this OR circuit U It, are connected to the positive terminals TW and 1, respectively, and the emitters are connected to the power supply terminals of the manual switch circuits M and SW. N (JN type transistor r r
It is connected to the pace of IB via resistor R4. Also, OR circuit 011. 1st input terminal, NOR circuit 0) t2~
The second input terminal of o It, and the first of the or (b) road OK
The input terminals, the second input terminals of the OR circuits 01t, -OR6, are connected to the control output terminals S, c-d and e, f-g of the manual switch circuits M, SW.

Next, the operation of the apparatus of the present invention having the above configuration will be explained. In the illustrated rest state, each count value of the U/D counter 4a + 4b is zero, and all outputs are "Low level" (hereinafter simply referred to as l and TI), so the NOR circuit NOR
,.

The output of NO3 (2, is "I-1i g h level" (hereinafter simply referred to as 'H'), and the output of OR circuit 0I (7 is also "h"), and the transistor Tr, 3 is turned on. In other words, positive electric clay is supplied to the power terminal a of the + dynamic switch circuit M and SW, and the mirror can be manually operated.In this state, (1) operate the manual switch circuit M and SW. ``H'' to its control output terminal C.
When the ``signal is output, the output of the OR circuit Of is ``[
l'', and the transistor daI'r4.'I°rs becomes O
Do N. ), the left mirror drive motor ML is t style I
, is energized and rotates C, changing the angle of the left mirror to the right. At this time, the manual switch circuit ~1. simultaneously outputs an "H" signal to the control output terminal. When sW is operated, the output of OR circuit 01 becomes "11", transistors i'r1 and i'r! turn on, and solenoid SL
is activated, causing the left mirror to tilt downward. Next, when the manual switch circuits M and SW are operated to output the I4'' signal to the control output terminal d, the OR circuit 01
1. The output of the transistor becomes °°H'', and the transistor Tr6.'
1'r3 turns ON. Therefore, the motor ML has a current of 1
．． Gai! IM, rotates, and angles the left mirror to the left. At this time, the manual switch circuit M is configured to output a 1H'' signal to the control 1 output terminal.

When SWt is operated, the solenoid SL is operated in the same manner as described above, so that the left mirror is deflected upward.

Similarly, when an "H" signal is output to the terminal f, the transistors l'r+o and Tr turn ON, and therefore the right mirror drive motor MR rotates as the current I4 is increased by 1R1, moving the right mirror to the right. Change the angle. At the same time, if an °'H" signal is output to the terminal e and the solenoid SR is activated, the right mirror is deflected downward. Also, if an H" signal is output to the terminal g, the transistor Tr, ! ,'L
When 'r@' is ONL, the motor MR rotates as the current l is traced, turning the right mirror to the left. At the same time, if an 'H' signal is output to terminal e and solenoid SR is activated, the right mirror is deflected upward.

As mentioned above, the left and right valley mirrors are manual switch M.

Move your hands up, down, left, and right by operating the SW! III angle change is possible, and in actual use, the position required during normal driving of the vehicle (
(Eye point).

Next, a case will be described in which the transmission (not shown) is operated to the reverse position and the reverse switch SW is set to ONL when the vehicle is parked or parked. That is, when the reverse switch SWI is turned on from the illustrated state,
From the output i1a of the reverse switch circuit l")l"
A signal (ONag number) is output, and at this time the left and right mirror limit switches sw, sw.

is in a bad OFF state, and the output terminals 2a and 2b of the limit switch circuit 2 are also outputting IHI+ signals. As a result, the AND circuit AI”, IIJ, , ANIJ
, and the outputs of the inverters INVs, INV,
II”, and the OR circuit OR,,014, and O1t
ll, (The output of J II4 is also 111111. Therefore, in the manual switch circuit M and SW mentioned above, its terminal b +
The operation is the same as in the case where the solenoid S 1. , S□ operates, and the motor ML has a flow 1. However, a current I4 is applied to each of the motors Mn, and both the left and right mirrors begin to deflect downward.

When the left and right mirrors are angled to a predetermined position, the limit switches sw, , sw are turned on, and the signals from the output terminals 2a, 2b of the limit switch circuit 2 change to "L".Therefore, the AND circuits ANIJ, , ANI)2 and the outputs of inverters INV, , INV4 are “l, I
I and motor M1. , MR and solenoid SL,
The SR is de-energized and both the left and right mirrors stop at that position. Here, from when the left and right mirrors start changing angle until they stop, the NOR circuits N0R4 and N01t.

The output is "L" and the input terminals 'rK of the counters 4a and 4b are inverted and given the pulse from the pulse excavation circuit 3 via the NOR circuits N0)t, . At this time, each control terminal U/D of the U/D counters 4a and 4b is supplied with the H'' signal from the AND circuits AND, , AND, so the U/L counters 4a and 4b perform an up-count operation. During this time, the number of input pulses is counted up and the count value is held.

As described above, the mirror automatically changes angle in conjunction with the operation of the transmission to the reverse position, and the state of the road surface near the tires of the vehicle can be visually recognized. In this state, the driver performs a reverse operation such as when parking the vehicle.

When you return the transmission to the neutral position after putting it in the garage etc., the reverse switch SW is set to 0FF.
L, 1g from the output terminal 1a of the reverse switch circuit 1
The signal changes to °゛L” (0) “L” signal is output).

At this time, since the U/D counters 4a and 4b hold the count value at the time of count-up, the NOR circuit N0
The output of 1t, , NUlt is 'L'',
And since the F+ signal from the output terminal 2a12b of the limit switch circuit 2 is also "L", the NOR circuit N0It
2. N(Jlt.

The G output becomes H". As a result, the output of the OR circuit (Jlt8°OR, becomes HII, and the inverter INV
,.

The output of INV is F1'' and the OR circuit OIL, , Ul
The output at t4 also becomes "H". Therefore, the operation is the same as when the terminals S, d, e, and g are set to 11°' with the manual switches M and SW, that is, the solenoids SL and SR operate, and the current I is applied to the motor N4L. ``IAtIg'' are passed through MIt, and the left,
The right-facing mirror starts returning upward (K angle). At this time, the limit switches sw, , sw are turned OFF, and the output terminal 2a of the limit switch circuit 2, ! The signal from b changes to I('', but the reverse switch SW changes to 01-
Since the signal from the output terminal 1a of the reverse switch circuit 1 remains at "L", the AND circuit ANI)
, , AND.

The output of NOR circuit N01t also holds L''.
, , N (The output of Jlt6 is "H", so the NOR circuit N0R4, N0I (the output of , is "L" and U/1) counter 4a.

Each input terminal i'K of 4b is a NOR circuit N(J)t, ,
N(Jltll, the pulse from the pulse oscillation circuit 3 is inverted and given. At this time, the U/D counter 4a
, 4b each control terminal Ll/l) has an AND circuit AND, .
AND, since the empty L" signal is added, the U/D counters 4a and 4b are in the down-count ddr operation, and the held count value is down-counted. When the count value becomes zero, When all of the BCD output terminals Q1 to Q4 of the /D counters 4a and 4b become L'', the output of the NOR circuit N0I(,3°N(J)t, becomes 'H', and the NOR circuit N(l)L ,, N0I(.

The output becomes "L". Therefore, the OR circuit OR,,OR
.

and o II6. o The output of II4 becomes "L" and the energization of motor MM and solenoids SL and SR is stopped L'R, and the left and right mirrors return to the normal position (eye point) and stop. do. At the same time, NOR circuit N0)t
. , N01t, is 11°', so the NOR circuit N
The output of 0LL, , N01t, remains low,
Thereafter, the pulses from the pulse oscillation circuit 3 are no longer applied to the input terminals 'I' of the U/D counters 4a and 4b.

Note that during the above-mentioned mirror automatic angle change-return operation, the output of the NOR circuit NOR, No)L is L II, and the output of the OR circuit OR is N1. It remains as II.

Therefore, the transistor Trys remains OFF, and the power source + is not supplied to the power terminals a of the manual switch circuits M and SW, and the mirror power is not supplied to the power supply terminals a of the manual switch circuits M and SW. It was determined that the 1tIlt angle could not be operated, and the mirror drive mechanism (not shown) was damaged! It is protected from zero production etc. .

By returning the transmission to the open or neutral position as described above, the mirror will automatically return to its original position k (eye point) before the angle change. In this case, the return time of the left and right mirrors is determined by the LJ/l) counters 4a and 4b as shown in the above explanation.
Since the /D count operation is controlled to be the same as the time required to change the angle from one position to the other, the return positions of the left and right mirrors are smoothly matched to the original position (eye point).

In the above-mentioned embodiment, one motor ML2Mn is provided for each of the left and right mirrors whose angle of displacement is 1, and solenoids SL and SR are used to control the driving force transmission direction of the motors ML and M. , the left mirror is deflected downward and horizontally by the motor ML (and the right mirror is deflected vertically and horizontally by the motor MR, so-called 1).
The present invention is not limited to the motor type 41 commonly used in electric remote control mirrors, but two motors are provided for each of the mirror and the right mirror. It can also be applied to a so-called two-motor remote control mirror, an example of which is shown in FIG. In this Fig. 3, ol(, ~OIL
, , is the off-circuit, )t+ o ~)L, , is the resistance, i'
r H4 to T rs+ are transistors, MVL is a motor for driving the left mirror in the vertical direction, PvIHL is a motor for moving the left mirror in the horizontal direction, MvR is a motor for driving the right mirror in the vertical direction, M and IIN are motors for driving the right mirror in the horizontal direction. be. In addition, Fig. 2 and No. 1-r1 indicate the same or corresponding parts.

In the embodiment shown in FIG. 3, the transistor Trls (JIN) is in the rest state as shown in the figure, and the power source a of the manual switch circuits M and l is supplied with positive earth, and the mirror can be manually operated. This state is the same as in the above-mentioned embodiment. In this state, the left and right mirrors can be turned in the desired direction by operating the manual switch circuits M and SW. At this time, the manual switch circuit ~i , sw operation causes the control output terminal b to output the ゛)(“° signal.
Motor MV L I MHL I MV for ~i
The relationship between the RI MHR current and the left and right mirror deflection directions is shown in Table 1 below.

Table 1 Next, automatic angle change-return operation will be explained.

First, when the transmission is operated to the reverse position and the reverse switch SW is turned on, the AND circuit AND
The output of ,,AND becomes Hn, and the OR circuit utt,
, uit, , becomes H”, so motor MvLIMVJ
'tM, 1t la e lo is applied to l, and both the left and right mirrors begin to deflect downward. When both the left and right mirrors are angled to the predetermined position, the limit switch sw,
, sw3 is ONj, , AND circuit AND, , AND,
The output becomes 'I L n, and the power supply to the motor MVL1'VR is stopped, and the left side.

Both right mirrors will stop at that position. During this time, the U/D counter 4a14b operates at each input terminal ' as in the above embodiment.
The number of pulses input to the driver is counted and saved, and when the mirror is stopped, the count value is maintained.

After that, when the transmission is returned to the neutral position, the reverse switch SW
Since the output is 11 L II, it is a NOR circuit.
The output of ,,Not(,l becomes "H", and the output of the or(low) road ou,,ott,, becomes 11". Therefore, VL VR tl't Is #Lo is energized to the motors M and M. and the left and right mirrors start upward return (angle change).From this time, LJ/
The D counters 4a and 4b start counting down in the same way as in the above embodiment. When the count value becomes zero,
The output of the NOR circuit NOR,,N(]t, becomes 1]°', and the output of the NOR circuit Not(,,N01t6 becomes L II, so the output of the OR circuit Of,,OR,, also becomes L'', and the motor The power supply to MVLI MVR is stopped and both the left and right mirrors are also stopped.In this case, the return time of both the left and right mirrors is IJ/l) U/l of counters 4a and 4b.
) Since the time required to shift to a predetermined position is controlled by the counting operation, the return positions of both the left and right mirrors are precisely aligned with the original normal position (eye point) as in the above embodiment. The same is true. Further, the manual power switch circuit 9 also operates in the same manner as in the above embodiment.

In the embodiment shown in FIGS. 2 and 3, the left and right mirrors are configured to be automatically tilted and returned at the same time. However, when one of the left and right mirrors, for example, In the case of this vehicle, only the left mirror may be controlled automatically, and the same parts as in FIGS. 2 and 3 are given the same reference numerals in FIGS. 4 and 5. Let me give you an example.

As described in detail above, in the present invention, automatic shifting of the mirror starts simply by operating the transmission of the vehicle to the reverse position, automatically shifts the mirror to a predetermined position, and unless the transmission is returned from the reverse position to the neutral position. By keeping the mirror stationary at the angular position and returning it to the neutral position, the automatic return operation will start and the mirror will automatically return to the neutral position, which saves time and effort in changing and returning the mirror. This makes it possible to significantly reduce the amount of time required to operate the vehicle, and improve operability and safety when parking the vehicle in a garage, pulling the vehicle closer to the side, etc. Particularly, in the present invention, since the mirror is configured to be controlled by an LJ/D counter that performs automatic angle change and return operation (), the mirror return position can be precisely matched to the red position. Furthermore, in the present invention, even if the manual switch circuit is accidentally operated during the mirror's automatic angle shifting/returning operation, the manual switch ridge source circuit disables manual operation during that time, so that malfunctions of the mirror drive mechanism, etc. can be prevented. Another effect is that malfunctions can be prevented.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a basic example of an automatic angle control device for an electric remote control mirror according to the present invention, and FIG.
The figure is a circuit diagram showing a specific example of the device of the present invention shown in FIG. 1, and FIGS. 3 to 5 are circuit diagrams of other embodiments of the device of the present invention. DESCRIPTION OF SYMBOLS 1... Reverse switch circuit, 2... Limit switch circuit, 3... Pulse oscillation circuit, 4... U/D counter circuit, 5... Gate circuit, 6... Mirror drive circuit, 7 ...Electric remote control mirror, 8
1M. SW...Manual switch circuit, 9...Manual switch power supply circuit, ML"RIMVLIMHLIMVRIMHR"
'Mirror drive motor, SL, SR...Solenoid. Patent applicant Masami Akimoto, agent of Ichikoh Industries, Ltd., patent attorney

Claims (1)

[Claims] An electric remote control mirror for a vehicle includes a reverse switch circuit that outputs an ON or OFF signal when the vehicle's transmission is switched between the neutral position and the reverse position, and an output when the mirror is shifted from its normal position to a predetermined position. A limit switch circuit in which the signal changes, a pulse oscillation circuit that continuously generates pulses with -M cycles, and this pulse oscillation circuit 77
) An up/rerun counter circuit that performs a pulse reverse counting operation, and a mirror angle change signal that starts up counting of the up/down counter and deflects the mirror toward a predetermined position in response to an ON signal from the reverse switch circuit. When the output signal of the limit switch circuit changes, the output of the up count and the mirror angle change signal are respectively stopped, and the output of the reverse switch circuit (JFF signal is used to stop the output of the up/down counter circuit). A gate circuit that outputs a mirror return signal that starts counting down and returns the mirror to its normal position until the count value of the up/down counter circuit reaches zero, and an output signal from the gate circuit. a mirror drive circuit that drives the mirror according to the above, a manual switch circuit that manually drives the mirror in a desired direction by giving a value of 100 to the mirror drive circuit via the gate circuit, and the up/down counter circuit. The electric remote control mirror is equipped with a manual switch power supply circuit that supplies power to the manual switch circuit only when the count value is zero to enable manual mirror operation.
automatic angle control device.