JPH035333B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an empty area display device for displaying an empty area in an on-vehicle electrical equipment load having a storage unit for presetting a plurality of operation control data.

One of the devices currently being researched by the inventors of the present application is an electric seat/mirror device.This device can be used to adjust seat positions and side mirrors to suit each driver in advance, such as when multiple drivers take turns driving. The angles of the mirrors (hereinafter simply referred to as mirrors) can be preset in separate memory areas, and when the driver changes the angle, the preset data corresponding to the driver can be selected by operating a predetermined switch. The seat and mirrors are automatically set to the set position, which is convenient because there is no need to manually adjust the seats and mirrors each time.

By the way, in the above device, if a storage area in which no preset data is stored (hereinafter referred to as an empty area) is not displayed, if someone who does not know the stored contents tries to perform a new preset operation, However, since it is not possible to determine which storage area is an empty area, there are inconveniences such as accidentally erasing data in a storage area that has already been preset. It has been recognized that it would be convenient to be able to delete unnecessary data such as items that are not used often.

The present invention has been made based on the above background, and its object is to set a desired preset by operating a predetermined switch in an on-vehicle electrical load having a preset storage section, such as the above-mentioned electric seat/mirror device. The object of the present invention is to prevent erroneous operations during preset operations and improve operability by making it possible to erase set data and displaying empty areas in the storage section.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

1 to 4 are diagrams showing the structure of an electric mirror of an embodiment of an electric seat mirror device according to the present invention.

This electric mirror is an outside mirror M, and inside the mirror body 1 of this outside mirror M, a unit case 2 is fixed via bolts 3, and a mirror body 4 is fixed in the vertical and horizontal directions. It is inserted so that it can rotate at an angle.

A motor 5 is fixed inside the unit case 2 as shown in FIGS. 1 and 2.
A magnetic body 7 having an N pole and an S pole is fixed to one end of the motor shaft 6 so as to be rotatable integrally with the shaft, and the other end is fixed to an electromagnetic body 7 having a speed reduction mechanism such as a planetary gear type speed reducer. It is fixed to clutch 8.

Then, when the electromagnetic clutch 8 is energized,
The rotation output of the motor 5 is appropriately decelerated and linked to a pinion gear (for vertical movement) 9, and when turned off, it is linked to a pinion gear (for left and right rotation) 10.

As particularly shown in FIG. 3, the pinion gear 9 meshes with a fan-shaped joint gear 11. One end of this joint gear 11 is connected to a bracket 12 attached to the back surface of the mirror body 4. The mirror 4 is configured to rotate in the vertical direction with the pin 13 as the center of rotation due to the vertical rotation of the pin 13 . Furthermore, projections 14 are provided at the upper and lower ends of the joint gear 11.
15 are provided in a protruding manner, and these protrusions 14, 15 act to press and turn on a limit switch 16 disposed on the unit case 2 when the joint gear 11 rotates to its upper and lower end positions.

Furthermore, there is some elastic meshing play between gears 9 and 11, so if you try to forcibly rotate the mirror body up and down with the motor fixed, the gap between gears 9 and 11 will be reduced. It will become disengaged and spin idle.

Further, as shown in FIG. 4, the pinion gear 10 meshes with a slide gear 18 that is movable in the front-rear direction, and one end of this slide gear 18 is
It is connected to the bracket 12 of the mirror body 4 via a ball joint 19, and as the slide gear 18 moves back and forth, the mirror body 4 is rotated left and right around the pin 20 as shown in FIG. Rotate. Further, protrusions 21 and 22 are protruded from the front and rear ends of the slide gear 18.
The protrusions 21 and 22 are configured so that the slide gear 18 presses and turns on the limit switch 23 at the end of its longitudinal movement.

Furthermore, there is some elastic meshing play between the gears 10 and 18, so if you try to forcefully rotate the mirror body from side to side with the motor fixed, the gap between the gears 10 and 18 will increase. It will become disengaged and spin idle.

Reference numeral 24 in FIG. 2 is a reed switch that is turned on and off by the magnetic force of the magnetic body 7 and inputs a pulse signal to the microcomputer 36. This reed switch 24 outputs one pulse every half rotation of the motor shaft. It is configured so that it can be obtained.

The electric seat shown in FIG. 5 is provided with two motors on the underside of the seat S of the driver's seat: a motor 62 that moves the seat S in the front-back direction, and a motor 63 that moves the seat S up and down. ,
Although not shown below, similar to the configuration of the electric mirror described above, the rotation of each motor 62, 63 is transmitted to the rack attached to the lower surface of the seat S by a planetary gear reducer, and the seat S is rotated. It is configured to move back and forth and up and down.

In addition, in order to detect the moving position of the seat S, each motor 6 is operated similarly to the electric mirror.
Reed switches 64 and 65 are provided which are turned on and off by the magnetic force of the magnetic bodies and which input pulse signals to the microcomputer 36 by the magnetic force of the magnetic bodies.

Furthermore, limit switches 66, 67, 68, and 69 provided in the respective movement directions are configured to be turned off at the end of the movement of the seat S back and forth and up and down. , 69 are turned off, the power supply to the motor is stopped, thereby preventing burnout of the motor and failure of the drive system.

Next, FIG. 7 is an electric circuit diagram showing the hardware configuration of the electric mirror device according to the present invention.

In the figure, a battery 30 mounted on a vehicle
After the output power line is branched into two systems, the first
Line l ₁ is the fuse 31 and the first power supply circuit 32
At the same time, this first power line _l1 is supplied to the power terminal _VCC of the microcomputer 36 via the
and left and right mirror clutch magnets 8R, 8
It is supplied to L.

Further, the second power supply line _l2 is connected to the ignition switch 33, the fuse 34 and the second power supply circuit 35.
After passing through, the microcomputer 36
At the same time, this second power line _l2 is supplied to the HLT terminal, and at the same time, the second power line l2 is connected to a pair of left and right switching relays 37R, 37L and 38R, 38 for switching the rotation direction of the mirror rotation motors 5R, 5L, respectively.
L, and is supplied to sheet moving motors 62, 63 and switching relays 70A, 70B, 71A, 71B that switch the rotation direction of these motors 62, 63, as well as a relay 39 for preventing erroneous output and a channel display, which will be described later. It is also supplied as a power source for the LEDs 40 to 43.

The microcomputer 36 performs predetermined memory backup and the like by the power constantly supplied via the first power supply circuit 32, and also has "H" at its terminals by the output of the second power supply circuit 35. ”
is supplied, a predetermined system program to be described later is executed.

When the stop switch 44 is operated, each output transistor 45R, 45L, 46
Continuity between the emitters of R and 46L and GND is broken,
At the same time as rendering each of the above transistors inoperable,
The operation is detected by port P ₃₀ and a stop signal is also sent to the program in microcomputer 36.

Next, each port of the microcomputer 36
Briefly explain the functions of P ₀ to P ₄₁ .

Port P ₀ ; As mentioned above, port P ₀ is the second
It is connected to the power line l ₂ and therefore turns off the ignition switch 33 or the fuse 3.
3, if a disconnection occurs in the second power supply circuit 3, etc.
5 can be detected quickly before the output of the sensor 5 decreases.

Port P ₁ ; Connected to the upper and lower limit switch 16R for the right mirror, therefore port P ₁
Based on the fact that "L" is supplied to , it is possible to detect that the mirror main body 4 has reached either the upper or lower terminal end in the vertical rotation of the mirror body 4 .

Port P ₂ ; Connected to the left and right limit switch 23R for the right side mirror, therefore port P ₂
Based on the fact that "L" is supplied to the mirror body 4, it can be detected that the mirror body 4 has reached either the left or right terminal end in the left-right rotation of the mirror body 4.

Port P ₃ ; Connected to the reed switch 24R for detecting the motor rotation speed for the right side mirror. Therefore, by counting the pulse train supplied to port P ₃ , the mirror body 4 can be rotated vertically or horizontally. The relative rotation amount can be detected.

Ports P ₄ , P ₇ ; Output transistor 4 each
It is connected to the base of 5R and 46R, and P ₄
= “H” and P ₇ = “L”, the switching relay 37
The coil 47R of R is energized, and its contact 48R is switched to the first power line _l1 side,
As a result, a current flows in the order of the first power supply line l ₁ -> contact 48R -> motor 5R -> contact 50R -> ground, and the motor 5R rotates in the normal direction.

On the other hand, port P ₄ = “L”, port P ₇ =
In the “H” state, coil 4 of switching relay 38R
9R is energized, its contact 50R is switched to the first power line _l1 side, and the motor 5R is turned on.
1st power line l ₁ → contact 50R → motor 5R
Current flows in the order of → contact 48R → ground, and the motor 5R rotates in reverse.

Port P ₅ , Port P ₆ ; Each is connected to the power supply line of motor 5R, and Port P ₅ =
Based on “H”, port P ₆ = “L”, motor 5R
is in normal rotation, and port P ₅ =
Based on the fact that “L” and port P ₆ = “H”,
It is possible to detect that the motor 5R is rotating in reverse.

Furthermore, based on the fact that ports P ₅ =P ₆ =“L”, it is possible to detect that the motor 5R is stopped.

Port P ₈ ; Connected to clutch magnet 8R for the right side mirror. By outputting "L" to port P ₈ , clutch magnet 8R is connected.
can be operated to connect the deceleration output shaft of the motor 5R to the pinion gear 9 for vertical rotation.

Port P ₉ ; Has the same function as port P ₁ for the left side mirror.

Port P ₁₀ ; Has the same function as port P ₂ for the left mirror.

Port P ₁₁ ; Has the same function as port P ₃ for the left side mirror.

Ports P ₁₂ , P ₁₅ ; For the left mirror, ports
It has the same function as P ₄ and P ₇ .

Ports P ₁₃ , P ₁₄ ; For left mirror, port
It has the same function as P ₅ and P ₆ .

Port P ₁₇ ; Connected to the vertical movement output S ₁ of the manual switch 51, so P ₁₇ is “L”
It is possible to detect that the manual switch 51 is set at the upper rotation position or the lower rotation position based on the fact that the manual switch 51 is supplied with the rotation position.

Port P ₁₈ ; Via the wired OR circuit 52,
Manual switch 51 motor forward rotation output S ₃ ,
S ₅ and motor reversal outputs S ₂ and S ₄ , respectively, and therefore, based on the fact that “L” is supplied to port P ₁₈ , manual switch 5
It is possible to detect that 1 is set in any of the upper, lower, left, and right positions.

Port P ₁₉ ~ P ₂₂ ; Channel display LED 40 ~
Therefore, by outputting “L” to these ports, LEDs 40 to 43 are connected to
43 can be driven to fall over as appropriate.

Ports P ₂₃ to _{P 26} are connected to channel switches 53 to 56, respectively, and it is therefore possible to determine which memory channel is specified depending on which of these ports is supplied with “L”. can be detected.

Port _P27 : Connected to the memory switch 57. Therefore, by supplying "L" to port _P27 , it is possible to detect that the memory mode has been set.

Port _P28 : Connected to the buzzer 58, so by outputting “H” to port _P28 ,
A buzzer 58 can be driven.

Port P ₂₉ ; Connected to the base of transistor 59. Therefore, by outputting H" to port P ₂₉ , transistor 59 is turned on, energizing coil 60 of relay 39, and its contact 61 is turned on. When turned on, the ground lines of the left and right output transistors 45L, 46L, 45R, and 46R are made conductive, and each output transistor can be set to an active state.

Port P ₃₀ ; As mentioned above, pull-down resistor 6
2 and the stop switch 44, and therefore detects that the stop switch 44 has been operated based on the state of the port P ₃₀ rising from "L" to "H". be able to.

Port P ₃₁ ; Connected to the reed switch 64 for detecting the rotation speed of the seat lifting motor 62;
By counting the pulse train supplied to the port _P31 , it is possible to detect how much the sheet S has moved up and down in the vertical direction, that is, the amount of relative movement.

Ports P ₃₂ , P ₃₃ ; each output transistor 7
It is connected to the base of 2A and 72B, and P ₃₂ =
In the state of “H”, P ₃₃ = “L”, the switching relay 70A
The coil 74A is energized, and its contact 75A is switched to the second power line l ₂ side, whereby the second power line l ₂ → contact 75A → motor 62
Current flows in the order of → contact 75B → ground, and the motor 62 rotates in the normal direction, causing the seat S to move upward.

On the other hand, port P ₃₂ = “L”, port P ₃₃ =
In the "H" state, the coil 7 of the switching relay 70B
4B is energized, its contact 75B is switched to the second power line _l2 side, and the current flows in the order of second power line _l2 → contact 75B → motor 62 → contact 75A → ground, and the motor 62 is reversed, and the sheet S is moved downward.

Port P ₃₄ : Connected to the reed switch 65 for detecting the number of rotations of the motor 63 for moving the seat back and forth, and can detect the amount of movement of the seat back and forth similarly to the port P ₃₁ .

Ports P ₃₅ and P ₃₆ are connected to the bases of the output transistors 73A and 73B, respectively, and perform the same output operation as the ports P ₃₂ and P ₃₃ to switch the switching relays 71A and 71B. Controls forward and reverse rotation of the motor 63 for forward and backward movement.

Port P ₃₇ ; Connected to coil 74A and seat manual switch 79, this port P ₃₇ is “L”
Based on this, it is possible to detect that the motor 62 is rotating normally.

Port _P38 : Connected to coil 74B and seat manual switch 80, this port _P38 is “L”
Based on this fact, it can be detected that the motor 62 is rotating in reverse.

Port P ₃₉ ; Connected to coil 76A and seat manual switch 81, this port P ₃₉ is “L”
Based on this fact, it can be detected that the motor 63 is rotating normally.

Port P ₄₀ ; Connected to the seat manual switch 82 of the coil 76B, and this port P ₄₀ is “L”
Based on this fact, it can be detected that the motor 63 is rotating in reverse.

Port _P41 : Connected to the erase switch 83, and based on the fact that this port _P41 is "L", it is possible to detect that the erase switch 83 has been turned on.

As explained above, microcomputer 3
A state signal indicating each state of the external circuit or a control output signal for the external circuit appears at each of the ports P ₀ to _{P 41} of 6 as appropriate.

Next, the left and right mirror motors 5R, 5L and clutch magnets 8R, 8L are controlled by the output from the microcomputer 36, and at the same time are controlled in parallel by each output S ₁ to _{S 5} of the manual switch 51. It is configured to be controllable.

That is, as shown in FIG. 6, the manual switch 51 includes, for example, a four-way toggle switch 84 that independently outputs vertical and horizontal outputs and has a neutral position, and a two-directional toggle switch 84 that outputs outputs in two vertical and horizontal directions. It is composed of a switch 85.

When the four-way toggle switch 84 is set to the upper or lower side, the output _S1 of the manual switch 51 becomes "L", which causes the clutch magnets 8R and 8L to be connected via the diodes 86 and 87. The motor 5 is energized, and the motor 5 is energized.
The reduction output shafts R and 5L are connected to pinion gears for vertical rotation.

On the other hand, the two-way toggle switch 85 is on the right side (R).
When _the four-way toggle switch 84 is operated up, down, _left , or right in the state set to 49R is driven, which causes the right mirror motor 5 to
R will rotate forward or reverse.

On the other hand, when the 4-way toggle switch 84 is operated up, down, left, or right while the 2-way toggle switch 85 is set to the left side (L), the output S ₄ or S of the manual switch 51 ₅ becomes "L", which drives either switching relay 47L or 49L,
The motor 5L for the left mirror rotates forward or reverse.

Therefore, if manual switch operation is detected at port _P17 , microcomputer 36
If the states of output ports P ₄ , P ₇ , P ₁₂ , and P ₁₅ are all “L”, the output S ₁ of the manual switch 51
~ _S5 allows manual rotation control of the left and right mirrors in a desired direction.

Similarly, the seat moving motors 62 and 63 are controlled by the output from the microcomputer 36, and at the same time the seat manual switch 7
9 to 82 operations can also be controlled in parallel.

That is, the seat manual switch 79
82, as shown in FIG. 6, is comprised of a two-way toggle switch 86 with a neutral position that instructs the front and back movement of the seat, and a two-way toggle switch 87 also with a neutral position that instructs the up and down movement of the seat. ing.

When the toggle switch 87 is set to the upper side, the seat manual switch 79
is turned on, the coil 74A is energized, the motor 62 rotates forward, and the seat S is moved up and down. On the other hand, when the toggle switch 87 is set to the lower side, the seat manual switch 20 is turned on. Then, the coil 74B is energized, the motor 62 is reversely rotated, and the sheet S is moved downward.

Similarly, if the toggle switch 86 is set to the front side, the seat manual switch 81 is turned on, and if it is set to the rear side, the seat manual switch 82 is turned on, causing the motor 63 to rotate forward.
Reverse rotation is performed, and the seat S is moved back and forth.

Next, FIGS. 8 to 10B are flowcharts schematically showing the structure of the system program executed in the microcomputer 36, and the operation of this embodiment device will be explained in a systematic manner according to this flowchart. Explain.

The electric seat/mirror device according to this embodiment has two modes: a manual mode in which the mirror and seat are set at desired positions by operating a manual switch from the driver's seat;
Channel switches 53 to 56 are activated based on individual data stored in each memory channel in the
Two operating modes can be selectively used: a preset return mode in which the seat and mirror positions are set to desired positions by a one-touch operation.

Therefore, the operation in manual mode will be explained in detail. In the following explanation of the operation, for convenience of explanation, the operation of the mirror will be representatively explained only for the right mirror, but it goes without saying that the same explanation can be given for the left mirror as well.

Regarding the operation in the manual mode, although not particularly shown in the flowchart, the microcomputer 36 always outputs a pulse train outputted from the reed switch 24R via port _P3 , a pulse train outputted from the reed switch 64 via port _P31 , The pulse train output from reed switch 65 via port P ₃₄ is counted, and depending on the logic state of ports P ₅ and P ₆ , motor 5 is
It is detected whether R is in forward rotation or reverse rotation.

Then, the state of the output _S1 of the manual switch 51 is taken in through the port _P17 , and based on this, it is detected whether the mirror body 4 is rotating in the vertical direction or the horizontal direction.

Also, if it is determined that the mirror is rotating in the left-right direction based on the state of port _P17 , and the direction of rotation is determined to be rightward or leftward depending on the state of ports _P5 and _P6 , , the contents of the counter X indicating the current position of the mirror in the horizontal direction are incremented by +1 or -1, so that the contents of the counter X always correspond to the current position of the mirror in the horizontal direction.

On the other hand, if it is determined that the mirror is rotating in the vertical direction based on the contents of port _P17 , the current position of the mirror in the vertical direction is similarly determined according to the contents of ports _P5 and _P6 . The contents of the counter Y indicating the position are incremented by +1 or -1, so that the contents of the vertical counter Y always correspond to the current vertical position of the mirror.

Further, depending on the logic states of ports _P36 to _P40 , the forward and reverse rotation states of the motors 62 and 63 are detected.

Then, when it is determined whether the seat is raised or lowered based on the logic states of ports P ₃₇ and P ₃₈ , the content of the counter N indicating the current vertical position of the seat is incremented by +1 or -1. Therefore, the contents of the counter N always correspond to the current position of the sheet in the vertical direction.

Similarly, based on the logic states of ports P ₃₉ and P ₄₀ , the contents of counter M, which indicates the current position of the seat in the longitudinal direction, are incremented by +1 or -1. The direction corresponds to the current position.

Since the microcomputer 36 performs the above operations, in this state, if you operate the manual switch appropriately and rotate the mirror body vertically or horizontally to position it at the desired angle, the counters X and The contents of counter Y will correspond to the current position of the mirror at that time, and if the seat is set to the desired position and height, the contents of counter M and counter N will be
This corresponds to the current position of the sheet at that time.

Next, the mirror coordinate data formed on the X and Y counters and the sheet coordinate data formed on the M and N counters by the above operations are stored in the memory of the designated channel in the microcomputer 36. The operation will be performed.

However, when presetting the seat and mirror setting positions in this memory, if the preset data has already been set in each of the four channels 53 to 56, it is difficult to preset new setting data. If this happens, there is a risk of accidentally erasing necessary data from among the data that has already been preset.Especially if the driver changes or if the preset contents are forgotten, the above-mentioned erroneous operation may occur. It becomes more likely to occur.

Therefore, in this electric seat mirror device, the preset data in the specified channel can be erased, and it is configured to display that the storage area of the erased channel is an empty area. Delete unnecessary preset data such as data that is not used much among the already preset data and display it to prevent the above-mentioned erroneous operations when an unknown person performs a new preset operation. It is something to do.

The preset data erasing operation for the designated channel will be explained below with reference to the flowchart of FIG.

First, as shown in FIG. 6, four channel switches 53 to 5 are installed at appropriate locations near the driver's seat of the vehicle.
6, memory switch 57, and erase switch 83
The above-mentioned stop switch 44 is also arranged, and when the erase switch 83 is pressed, the eighth
In the flowchart shown in the figure, the execution result of step (1) is YES, and then steps (2) → (3) → (4) are executed.
→(2) is repeatedly executed and after the erase switch 83 is operated, the ON operation of the channel switches 53 to 56 can be detected only for a certain period of time.

In this state, channel switches 53-
56 is turned on, the execution result of step (4) becomes YES, and steps (6)→(9) are performed depending on which of channels A to D the content of the channel switch is. →(10)→(11)→(12) or step (6)→(7)→(13)→(14)→(15)→(16) or step (6)→(7)→( 8)→(17)→(18)→
(19) → (20) or step (6) → (7) → (8) →
Either (21) → (22) → (23) → (24) is alternatively executed.

As a result, for example, if the operated channel switch is channel A, channel A's mirror left/right position register Ax, mirror up/down position register Ay, seat front/rear position register Am, and seat up/down position register An will contain the values up to now. A zero code (one of the count values of counters X, Y and counters M, N, which cannot be taken within the movement range of the mirror and seat, is used as the zero code) is stored instead of the preset data that was stored. , the preset data will be deleted.

Similarly, when other channel switches are pressed, a zero code is stored in each register corresponding to each channel.

Next, after the positions of the seat and mirrors have been set to positions suitable for the driver by the manual operation, the operation and process of presetting the current positions of the seats and mirrors in the memory of a predetermined channel are carried out in the ninth step. This will be explained according to the flowchart shown in the figure.

First, when the memory switch 57 is pressed,
In the flowchart of Figure 9, the execution result of step (31) is YES, and then step (31) is executed.
32, the contents of the mirror left/right position register Ax corresponding to the A channel switch 53 are transferred and stored in the code determination register K.

Next, proceeding to step (33), it is determined whether the data transferred to the code determination register K is a zero code or not. If the result is YES, this A
When it is determined that the memory contents of the channel have been erased, the program proceeds to step (34) and turns off the LED 40 provided at the top of this A channel switch 53 to indicate that this A channel is an empty area. .

Further, if the above judgment result is NO, it is judged that preset data is stored in this A channel, and the above LED 40 is lit, and this A channel is stored.
Displays that the channel has been preset.

The following steps (36) → (33) → (34) or (35) → (36) → (37) are executed to determine whether the other three channels are free areas or not, and based on this determination result. Therefore, the LEDs 41, 42, and 43 are turned on and off.

As a result, the LED of the empty area of the four channels is turned off, and it can be determined at a glance which channel new data can be preset into.

Therefore, next step (38)→(39)→
If you turn on the channel switch of the channel where the empty area is displayed during the waiting time of the channel switch operation by processing (40) → (38), the sheet and mirror set by the above manual operation will be applied to this channel. The current position of will be preset.

That is, when any of the channel switches 53 to 56 is turned on, the execution result of step (38) becomes YES, and the step is executed depending on which of channels A to D the content of the channel switch is. (41) → (44) → (45) → (46) →
(47) → (48) or step (41) → (42)
→ (49) → (50) → (51) → (52) → (53) or step (41) → (42) → (43) → (54) →
(55) → (56) → (57) → (58) or step (41) → (42) → (43) → (59) → (60) →
Either (61) → (62) → (63) is executed alternatively.

As a result, for example, if the operated channel switch is the A channel switch 53, the mirror left/right position register Ax and mirror up/down position register Ay of the A channel contain the counters X and Y formed by the manual operation, respectively. Mirror current position data is transferred and stored, and further A
The current sheet position data in the counters M and N formed by the manual operation are transferred and stored in the channel sheet position register Am and sheet up/down position register An, respectively.

Similarly, when other channel switches are pressed, the current position data is transferred and stored in each register corresponding to each channel.

Next, the operation in the preset return mode will be explained. Assume now that channels A, B, C, and D have already stored seat position data and mirror position data unique to each driver. The contents of the above mirror position data are as follows when the mirror rotates in the left and right direction and in the up and down direction.
When the intersection of the rightward rotation end and the downward rotation end is set as the origin (O, O), it is stored as a relative displacement amount from this origin.

In this state, ignition switch 3
When 3 is input, the flowcharts shown in FIGS. 10A and 10B start.

When the program starts, step (71) is first executed to determine whether the memory state has been successfully bumped up, and step (72) is selectively executed depending on the result of that determination. , and finally each register, memory, etc. in the working area is set to a predetermined initial state.

Next, when step (73) is executed, it is determined whether or not the channel switch has been operated. If any of the channel switches 53 to 56 has been pressed, step (73) is executed. The result is YES, and the origin return process is then performed.

Here, the origin return process is a process in which the contents of the counter X representing the current position of the mirror in the horizontal direction and the counter Y representing the current position of the mirror in the vertical direction are made to coincide with the actual current position of the mirror. This origin return processing is performed for the following purposes.

That is, as mentioned above, in the middle of the rotation transmission system from the motor 5 to the mirror body 4, there is provided an idle mechanism consisting of a pinion gear 10 and a slide gear 18 for left and right rotation, and for vertical rotation. Regarding movement, an idle mechanism consisting of a pinion gear 9 and a joint gear 11 is similarly provided.

The original purpose of these idling mechanisms is to prevent problems such as when the motor 5 breaks down and the motor shaft is locked, resulting in the mirror body 4 being fixed at an angle inappropriate for the driver. In this case, even if the motor shaft is fixed, the mirror body 4 can be manually rotated by an external force using these free rotation mechanisms to set the mirror body to the optimum angle.

Therefore, even if the electric mirror device malfunctions,
The purpose is to prevent a dangerous situation in which the mirror body 4 is fixed at an inappropriate angle and the user is forced to continue driving without being able to fully check the rear.

However, if only the mirror body 4 is configured to be rotatable by external force regardless of the rotation of the motor shaft, the mirror body may rotate due to some object accidentally coming into contact with it while the vehicle is parked, or If a child plays a trick and turns only the mirror body 4, the current position data stored in the counters X and Y mentioned above will no longer match the actual position of the mirror, and the It becomes impossible to preset the mirror back to the desired angle using the stored data of channels A, B, C, and D. Therefore, the function of the return-to-origin process is to match the contents of the counters X and Y with the current position of the mirror body so that the mirror body can be set at a desired angle using the data of each channel.

The actual process is to switch the limit switch 16R to detect the end of the movement of the mirror.
While detecting the on/off state of 23R and 23R, the mirror angle is moved to a predetermined origin, and when the mirror angle reaches the origin, the contents of the counters X and Y are set to 0. A reset process is performed.

Next, when the horizontal and vertical origin return processes described above are completed, the preset return process is subsequently started.

When the preset restoration process is started, in the flowchart of FIG. 10A, steps (75) → (78) → are performed depending on whether the operated channel switch is A, B, C, or D. (79) →
(80) → (81) → (82) → (83) or step (75) → (76) → (84) → (85) → (86) →
(87) → (88) → (89) or step (75)
→(76)→(77)→(90)→(91)→(92)→
(93) → (94) → (95) or step (75)
→(76)→(77)→(96)→(97)→(98)→
Either (99)→(100)→(101) is executed alternatively.

Then, the preset data stored in the X register and Y register of the corresponding channel is transferred to the preset register Zx in the horizontal direction and the preset register Zy in the vertical direction of the mirror, and then the preset data stored in the The preset data stored in the M register and N register of the corresponding channel is transferred to the preset register Wm and the vertical preset register Wn, respectively.

At this time, the LED of the specified channel
By turning off the light, it is displayed which channel the preset operation is currently being performed on.

Next, when step (102) is executed, the calculation Zx-X is performed between the preset register Zx in the left-right direction of the mirror and the current position register is stored in the horizontal deviation register εx.

Next, when step (103) is executed, it is determined whether the contents of the deviation register εx are positive or not. Here, the fact that the value of the deviation register εx is positive means that the horizontal rotation position indicated by the preset data is to the left of the current rotation position of the mirror body 4. Therefore, the content of the deviation register εx immediately after the start of the preset return process becomes positive, and then step (104) is executed and the mirror body 4 begins to rotate to the left.

Next, when the counter increment process consisting of steps (105) to (107) is performed, the contents of the current position register X in the left and right direction are incremented in response to the pulse train output from the reed switch 24R. Thereafter, until the contents of the preset register Zx and the contents of the current position register X match, the steps (102) → (103) → (104) → (105) →
(106) → (107) → (102) are executed repeatedly.

Next, when the horizontal rotation position specified by the preset data matches the current rotation position,
The execution result of step (103) is NO, and then step (108) is executed, and the mirror rotation operation in the left and right directions is stopped.This completes the preset restoration process in the left and right directions, and then the mirror rotation operation in the left and right directions is completed. The preset process starts.

When the vertical preset process is started, step (109) is executed, and the calculation Zy-Y is performed between the mirror vertical preset register Zy and the mirror vertical current position register Y. , the calculation result is stored in the vertical deviation register εy of the mirror.

Next, when step (110) is executed, it is determined whether the contents of the vertical deviation register εy are positive or not.

Here, if the content of the vertical deviation register εy is positive, it means that the vertical mirror rotational position indicated by the vertical preset data is higher than the actual rotational position of the mirror at that time. It means to be located in Therefore, immediately after starting the preset return process in the vertical direction, the execution result of step (110) becomes YES, and then step (111) is executed, and the mirror body 4 starts to rotate upward.

Next, when the counter increment process consisting of steps (112) to (114) is executed, the value of the vertical current position register Y is counted up in response to the pulse train output from the reed switch 24R.

Thereafter, steps (109) → (110) → are repeated until the vertical rotation position indicated by the preset data matches the actual rotation position of the mirror body.
(111) → (112) → (113) → (114) → (109) are repeatedly executed.

Next, when the vertical rotation position indicated by the preset data matches the current rotation position of the mirror, the execution result of step (110) becomes NO, and then step (115) is executed. The vertical rotation of the mirror body is stopped, thereby completely completing the preset return process of the mirror in the horizontal and vertical directions.

When the mirror preset return process is completed in this way, the seat preset return process is performed in the same manner, and this process is shown in FIG. 10B.
This will be explained according to the flowchart.

When the process of the final step (115) in FIG. 10A is completed, step (116) is executed next,
Preset register Wm in the front and back direction of the seat
and the current seat position register M in the longitudinal direction of the seat.
The calculation Wm-M is performed, and the calculation result is stored in the sheet longitudinal direction deviation register εm.

Next, when step (117) is executed, it is determined whether the contents of the longitudinal deviation register εm are positive or not.

Here, the fact that the content of the longitudinal direction deviation register εm is positive means that the position of the seat in the longitudinal direction indicated by the preset data in the longitudinal direction of the seat is located in front of the current position.

Therefore, if the content of the deviation register εm is positive, step (119) is executed and the sheet starts moving forward.

Next, the counter increment process consisting of steps (120) to (122) is executed, and the value of the forward/backward current position register M is counted up in response to the pulse train output from the reed switch 65, and from then on the sheet moves forward. Move and step (116) → (117) → until you reach the preset position.
(119) → (120) → (121) → (122) → (116) are repeated.

Furthermore, if the content of the longitudinal direction deviation register εm is negative, the seat position indicated by the longitudinal direction preset data is behind the current position, and steps (116) → (117) →
(118) → (123) is executed, the seat starts moving backwards, and the following steps (125) → (126) are executed.
→(127) is executed to count down the current position register M in the longitudinal direction, and the seat moves backward, and this process is repeated until it reaches the preset position.

If the content of the longitudinal deviation register εm becomes 0, it is determined that the sheet matches the preset position in the longitudinal direction, and the process of step (128) is executed to activate the motor for longitudinal movement. The energization of the seat 63 is stopped, and the preset return process in the front and back direction of the seat is completed.

Thereafter, similar processing is performed to position the sheet up and down to preset positions.

That is, in step (129), the calculation Wn-N is performed between the sheet vertical preset register Wn and the sheet vertical current position register N, and the calculation result is sent to the sheet vertical deviation register εn. Stored.

Then, in step (130) or (131), depending on whether the vertical deviation register εn is positive, negative, or 0, step (130)→
(132) → (133) → (134) → (135) or step (130) → (131) → (136) → (137) →
(138)→(139) are executed to move the seat upward and count up the current position register N in the vertical direction, or move the seat downward and count down the current position register N in the vertical direction.

Then, the value of the vertical deviation register εn is 0.
If it is determined that the next sheet matches the preset position in the vertical direction, step (140) is executed.
The motor 62 for vertical movement is
energization is stopped, and the preset return process in the vertical direction of the sheet is completed.

In the above embodiment, an electric seat mirror device for a vehicle is shown in which preset data can be erased. However, the present invention is not limited to this, and the invention is not limited to this. It is clear that the same effect can be obtained by applying the present invention to an air conditioner stationer or a radio or audio tuner that can be preset.

Furthermore, in the above embodiment, the preset data erasing operation is performed by turning on a separately provided erasing switch.
In addition to this, without providing a specific erase switch,
If two switches for other processing are used as key switches, and the above erasing process is performed by turning on these two key switches in sequence, it is possible for a child's mischief etc. to accidentally trigger the erasing switch. This prevents necessary preset data from being deleted by pressing .

Further, in the above embodiment, a reed switch is used as a small rotation detector, but in addition to this, a Hall element or the like that detects the magnetic flux of the magnetic body 7 may be used for detection. Of course, it is not limited.

As explained in detail above, in the vacant area display device of the present invention, desired preset data can be erased by operating a predetermined switch in an on-vehicle electrical load having a preset storage section, and the preset data can be erased from the memory. By configuring the display to display empty areas within the section, it is possible to prevent erroneous operations during preset operations and improve operability.

[Brief explanation of the drawing]

Figure 1 is a perspective view showing the internal structure of the electric mirror;
Figure 2 is a sectional view taken along the - line in Figure 1, Figure 3 is a sectional view taken along the - line in Figure 1, and Figure 4 is a sectional view taken along the - line in Figure 1.
5 is a perspective view showing the electric seat device, FIG. 6 is a plan view of the operation panel, and FIG. 7 is an electric circuit diagram showing the hardware configuration of an embodiment of the device of the present invention. , FIG. 8 is a flowchart showing the process of erasing preset data of the device, FIG. 9 is a flowchart showing the process of storing personal data in each channel and the process of displaying empty areas, and FIG. 10A, B is a flowchart showing preset return processing. 36...Microcomputer, 40, 41,
42, 43...LED, 53, 54, 55, 56
... Channel switch, 57 ... Memory switch, 83 ... Erase switch.

Claims (1)

[Scope of Claims] 1. A preset memory in an on-vehicle electrical equipment load that is provided with a preset memory that stores a plurality of operation control data in response to a preset preset operation, and whose operation is controlled based on the preset data. An empty area display device for displaying an empty area of a memory; preset data erasing means for erasing desired data from among the operation control data preset in the preset memory in response to a predetermined switch operation; An empty area display device comprising empty area display means for displaying an area where data has been erased among each storage area in the preset memory.