JPS6345330B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic angle control device for an electric remote control mirror. In particular, one motor is built in for each mirror to be deflected, and a switching means is built in to switch the transmission direction of the driving force of the motor. The present invention relates to an automatic angle-shifting control device used in an electric remote control mirror that performs angle-shifting.

Although the present invention is extremely effective when applied to an outside mirror mounted on the side opposite to the driver, it can be widely used in other remote-controlled mirrors.

With this type of conventional mirror, the electric remote control mirror automatically turns left/right or up/down by turning on a switch, and after being stationary for a certain period of time, it automatically turns in the opposite direction again. It is configured to return to its original position by changing the angle. The original position, that is, the position where the mirror is normally set, is called the eye point, and is the most appropriate mirror position during normal driving.

Such remote control mirrors are used to temporarily shift the mirror from the eye point when changing lanes or turning left or right during normal driving to visually check the vicinity of the vehicle body. However, in the case of the above-mentioned conventional technology, the electric outside mirror on the side opposite to the driver's seat (left side in Japanese cars) is used to automatically change the electric mirror to see the road shoulder, gutter, curb, etc. Even if you turn the angle, if you just turn the angle straight down from the normal eye point, the car's body actually gets in the way, and you can't see anything very close to the tires. Therefore, it was difficult to pull the car over without relying on intuition. Furthermore, once the switch is turned on, it does not begin to return until a certain period of time has elapsed, which is inconvenient when it is desired to return to the original position immediately.

In view of the above circumstances, the present invention automatically deflects the electric mirror straight down and then inward of the vehicle (to the right in Japanese cars), thereby moving the mirror very close to the tires of the vehicle. To provide an automatic angle change control device for an electrically operated remote control mirror, which is safe and reliable and allows the driver to see the vehicle in the mirror, and to pull over the vehicle while actually visually recognizing the vehicle without relying on intuition. Being able to actually see the vicinity of the tires in this way is extremely helpful, especially for beginners. A further object of the present invention is to make it possible to immediately return to the original position by turning on the switch again after turning on the switch to change the angle and completing the change, thereby increasing convenience in actual use.

Furthermore, with the above configuration, when the angle is shifted in the right (or left) direction following the downward shift, or when the angle is returned, a one-motor type equipped with a switching means using one motor as in the present invention can be used. In the case of motors, it is necessary to disengage the mechanical switching means such as a clutch while the motor is still rotating, so it takes some time for the clutch to be completely disengaged, and the angle changes. There is also a risk that positional deviation may occur at the end of return, and if used several times, the deviation will accumulate and become larger, making it impossible to obtain the desired field of view and having to adjust and set the eyepoint again. . Therefore, in the present invention, in order to eliminate such problems, the rotation of the motor and the actuation command of the switching means are stopped at the point when the downward shift is completed, and the switching operation is performed completely mechanically (clutching). After finishing (separation, etc.), rotate the motor again to shift the angle in the right (or left) direction, and do the same when returning, thereby reducing the positional deviation at the end of the shift and return. In particular, the purpose is to eliminate the need to frequently set the eye point and make it convenient to use.

Hereinafter, an example of implementation of the present invention will be described with reference to the drawings. The details of this example are shown in a circuit diagram in FIG. 3, but the basic configuration is shown in FIG.

In Figure 1, 1 is a switch, 2 is a variable angle command circuit,
3 is a return command circuit; 4 is a first timer circuit which is used for switching means (solenoid in this example) and for setting the operation time of the mirror drive motor during downward deflection and upward return; 5, 7, 9; are first, second, and third trigger circuits, respectively, which generate a trigger signal at the moment when the timer on the input side changes from the on state to the off state, and play the role of turning on the timer circuit on the output side. 6 is a second timer circuit for setting the rest time; 8 is a third timer circuit for setting the operating time of the motor when turning in the right (or left) direction and returning to the left (or right) direction; 10 is the fourth timer circuit;
This is a timer circuit, which together with the output signal of the first timer circuit 4 or the third timer circuit 8 gives a signal to the gate circuit 11 indicating whether the angle should be changed or restored, and when the timing ends or the fourth timer circuit It plays a role of generating a trigger signal to the third trigger circuit at the moment when the switch is turned off by the reset signal from the return command circuit 3. 11 is a gate circuit, and the first to fourth timer circuits 4, 6, 8, 10
A signal indicating whether to rotate the motor forward or reverse is given to the mirror drive circuit 12 based on the output signal. 1
2 is the mirror drive circuit, and the first timer circuit 4
The output from the gate circuit 11 operates a solenoid serving as a switching means, and the output from the gate circuit 11 causes the motor to rotate forward or reverse. When switch 1 is pressed when the first to fourth timer circuits 4, 6, 8, and 10 are all off, the angle change command circuit 2 is selected by the signal from the gate circuit 11, and generates a trigger signal. The first and fourth timer circuits 4 and 10 are turned on.

Next, when the first to third timer circuits 4, 6, and 8 are in the off state and only the fourth timer circuit 10 is in the on state, when switch 1 is pressed, it is selected by the signal from the gate circuit 11 and the return command circuit 3 is activated. The fourth timer circuit 10 is reset and turned off.

Note that even if the switch is pressed while any one of the first to third timer circuits 4, 6, and 8 is in the on state, neither the angle change command circuit 2 nor the return command circuit 3 will work due to the signal from the gate circuit 11. do not have. In Figure 1,
13 is a one-motor electric remote control mirror, and 14 is an ordinary manual switch for remote control mirrors used for eye point setting, etc.

FIG. 2 shows a timing diagram of the output of each timer circuit. In the figure, t ₁ = t' ₁ , t ₂ = t' ₂ , t ₃ = t' ₃ , and t ₁
is the time during which the switching means (solenoid) operates, the motor rotates forward, and the mirror angles downward; t ₃ is the time during which the motor rotates forward and the mirror angle shifts to the right (or left); t ₁ ′ is when the switching means (solenoid) is activated.
t3 _' is the time when the motor reverses and the mirror returns to the left (or right) direction; _t2 and _t'2 are the rest times;
{t ₄ −(t ₁ +t ₂ +t ₃ )} is the time during which the mirror remains stationary after completing the angle change. Then, by pressing the switch, the sequence advances from t ₁ to t ₂ to t ₃ . Further, from the moment the fourth timer circuit 10 is turned off, the process ends from t ₁ ′→t ₂ ′→t ₃ ′ and returns to the original position.

FIG. 3 shows the basic circuit of the embodiment. In Figure 3,
R ₁ ~ _{R 9} are resistors, C ₁ ~ C ₅ are capacitors, D ₁ ~ _{D 2}
is a diode, Tr ₁ to Tr ₈ are transistors, AND
1 to 4 are AND gates, NOR1 to 2 are Noah gates, INV is an inverter, OR1 to 2 are OR gates, _T1 to _T4 are timer circuits, M is the built-in motor of the electric remote control mirror, and S is the solenoid (switching Means), MS is a manual switch and a normal electric remote control mirror switch, and Sw. is a switch.

The correspondence between Figure 3 and Figure 1 is as follows: Sw., R ₁ is switch 1, AND 1, NOR 1 and C ₁ are angle change command circuit 2,
AND2, NOR2 and C ₂ are return command circuit 3, T ₁
is the first timer circuit 4, _T2 is the second timer circuit 6, _T3 is the third timer circuit 8, _T4 is the fourth timer circuit 10, _C3 is the first trigger circuit 5, and _C4 is the second trigger circuit. 7. C ₅ is the third trigger circuit 9,
OR1, OR2, INV., AND3 and AND4 are gate circuits, _R2 to _R9 and _Tr1 to _Tr8 are mirror drive circuits 12, M and S are electric remote control mirrors, and MS is a manual switch. D ₁ and D ₂ are diodes for backflow prevention.

Hereinafter, the structure and operation will be explained in detail with reference to FIG. 3.

In actual use, use the manual switch MS to set the mirror to the position (eye point) required during normal driving.

Before the automatic angle change device is activated, the outputs of T ₁ to _{T 4} are Low, and the output of OR1 is Low.
Since it is Low, the output of AND3 and AND4 is also Low.
Therefore, the mirror drive circuit 12 does not operate, and the mirror is stopped. At this time, the output of OR2 is Low,
The output of NOR1 is High, the output of NOR2 is Low, one of the two inputs of AND1 (output of NOR1) is High, and the other (point) is also connected to the + power supply through _R1 , so it is High and the output is also High, and one of the two inputs of AND2 (output of NOR2)
Since is low, the output is low regardless of whether the other point (point) is high.

When parking or pulling over to the side, press Sw. to activate the automatic angle changer and change the angle of the mirror, and the dot will appear.
Since it goes from High to Low, AND1 goes from High to
This causes a negative trigger pulse to be generated by the two capacitors _C1 and the timer circuit.
T ₁ and T ₄ are turned on. During the time when the output of this timer circuit _T1 is High ( _t1 ), _Tr1 is turned on through the base resistor _R2 , and the current is turned on through the current limiting resistor _R3 .
The base current of Tr ₂ flows, turning Tr ₂ on and operating solenoid S, but at the same time, OR
Since the output of 1 is High and the output of T ₄ is also High, AND
The output of 3 becomes High, and it is passed through the base resistor R ₄ .
Tr ₃ turns on and Tr ₅ through current limiting resistor R ₅
The base current of Tr 5 flows and Tr ₅ is turned on, and the base current of Tr ₇ flows through the base resistor R ₇ and Tr ₇ is also turned on, so a current (i ₁ ) flows through the motor M and it rotates in the normal direction. As a result, the mirror deflects downward during time _t1 .

The first timer circuit _T1 finishes timing and turns off.
At the moment the output changes from High to Low, the second timer circuit _T2 is turned on by a negative trigger pulse generated by the capacitor _C3 forming the trigger circuit, and its output becomes High. Timer circuit T ₁ and
The output of _T3 is Low, the output of OR1 is also Low, the outputs of AND3 and AND4 are Low, the solenoid and motor are not operating, and the mirror is also at rest. During this time t ₂ , the mirror is at rest.

Next, when the second timer circuit T ₂ finishes timing and turns off, the moment its output changes from High to Low, a negative trigger pulse is generated by the capacitor C ₄ , which turns on the third timer circuit T _3. ,
Output becomes High. The output of OR ₁ becomes High,
Since the output of the fourth timer circuit _T4 is also high, AND
The output of 3 becomes High, and as mentioned above, the motor M
A current _i1 flows through the motor, causing it to rotate in the normal direction. As a result, at time _t3 , the mirror deflects to the right (or left) and ends the deflection. When the angle is finished and it is stationary,
They put it in the garage, move it to a drawer, etc.

After finishing this parking and pulling, etc., the mirror should be returned to its original position (eye point).
When you press Sw., the point changes from High to Low, but
At this time, the output of the fourth timer circuit _T4 is High, and the outputs of the other timer circuits _T1 to _T3 are Low, so the output of OR2 is Low, and the output of NOR1 is
Since the output of Low and NOR2 is High,
The output of AND2 goes from high to low and the fourth timer circuit _T4 is reset and turned off by the negative reset pulse generated by capacitor _C2 . The output of the 4th timer circuit T ₄ changes from High
At the moment of going low, a negative trigger pulse generated by capacitor _C5 is applied via diode _D2 to the first timer circuit _T1 , thus turning it on. (Note that D ₁ and D ₂ are for preventing pulse generation from becoming difficult due to backflow from C ₃ or C ₁ when generating a negative trigger pulse at C ₁ or C _3. ) During the time when the output of the first timer circuit _T1 is High ( _t1 '), the solenoid operates in the same way as when changing the angle, but at the same time,
Since the output of OR1 is High and the output of the fourth timer circuit _T4 is Low, the output of AND4 becomes High, turning on Tr ₆ through the base resistor R ₈ , and the base current of Tr ₈ flows through the current limiting resistor R ₉ . Nagariko
Tr ₈ is turned on, the base current of Tr ₄ flows through the base resistor R ₆ , and Tr ₄ is also turned on, so that a current (i ₂ ) flows through the motor M and the motor M is reversed. the result
At time t ₁ ', the mirror returns upward.

Next, when the first timer circuit T ₁ finishes timing and turns off, the second timer circuit T ₂ turns on in the same manner as described above, and the mirror rests for a time t ₂ '. Furthermore, when the second timer circuit _T2 finishes timing and turns off, the third timer circuit _T3 turns on in the same way as described above, but at this time, the fourth timer circuit _T4 is in the off state and outputs is Low
Therefore, the output of AND4 becomes High, and as described above, current i ₂ flows through motor M, causing the motor to reverse. As a result, at time _t3 ', the mirror returns to the left (or right) direction and returns to its original position (eye point).

Even if the driver leaves the car after parking or pulling over, the mirror will automatically return to its original position without turning off the switch, even if the driver leaves the car. to return to the eye point. In other words, if the switch is not pressed after the angle change is completed, the fourth timer circuit T ₄ will stop timing.
At the moment the output changes from High to Low, a negative trigger pulse is generated by the capacitor _C5 , which is applied to the first timer circuit _T1 via the diode _D2 , turning it on, and from then on, the mirror is activated in the same manner as described above. It returns to its original position (eye point).

If any one of the first to third timer circuits T ₁ , T ₂ , and T ₃ is on, the output of OR2 will be High even if the switch is pressed.
The outputs of NOR1 and NOR2 are low, AND1
Since the output of AND2 remains low, C ₁
and C ₂ do not generate a trigger pulse and therefore have no effect.

As detailed above, according to the present invention, it is possible to automatically change the angle of the mirror to a preset position simply by operating a switch. returns to its original position. Moreover, when necessary, the mirror can be returned to its original position and returned to the eye point by operating the switch again while the camera is stationary, making it extremely convenient to be able to accurately and easily change the mirror field of view. In addition, in the present invention, by deflecting the mirror downward and then inward (to the left or right), it is possible to visually recognize an area very close to the timer, especially when entering a garage, for example. It is advantageous when you want to see very close to the tires, such as the shoulder of the road opposite to the driver, the side ditch, the curb, etc., when passing each other on a narrow road, etc., without the need for an assistant or relying on conventional intuition. This has the effect of allowing accurate and safe driving. In addition, the switching mechanism such as the clutch should be completely switched between downward deflection and inward deflection (left or right direction), and between upward return and outward return. By providing a pause time for the mirror to separate, the positional shift of the mirror at the end of the angle change and return can be minimized.
This has the effect of eliminating the inconvenience of having to frequently adjust the eye point. Furthermore, by providing the angle change command circuit and the return command circuit, the angle change and return signals can be output with the same operation of one switch, so the number of switches can be reduced, the operation is simple, and This also has the effect of reducing costs.

It should be noted that, as a matter of course, the present invention is not limited to the illustrated embodiment.

[Brief explanation of the drawing]

The drawings show an example of the implementation of the present invention; FIG. 1 is a block diagram showing its basic configuration, FIG. 2 is a timing diagram of a timer circuit, and FIG. 3 is a circuit diagram showing this embodiment. 1...Switch, 2...Variation command circuit, 3...
Return command circuit, 4, 6, 8, 10, T ₁ , T ₂ ,
T ₃ , T ₄ ... timer circuit, 5, 7, 9, C ₃ ,
_C4 , _C5 ...Trigger circuit, 11...Gate circuit,
12...Mirror drive circuit.

Claims (1)

[Claims] 1 a switch, a shift command circuit and a return command circuit operated by the switch, and first to fourth
It includes a timer circuit, a gate circuit connected to the timer circuit, and a mirror drive circuit, and the first timer circuit is connected to the angle change command circuit and connected to the second timer circuit via the first trigger circuit. The second timer circuit is connected to the third timer circuit through the second trigger circuit, and the fourth timer circuit is connected to both the angle change command circuit and the return command circuit, and the first timer circuit through the third trigger circuit. The angle change command circuit is configured to turn on the first to fourth timer circuits by turning on a switch when all of the first to fourth timer circuits are in a stopped state, and the return command circuit is configured to turn on the first to fourth timer circuits when only the fourth timer circuit is in a stopped state. The fourth timer circuit is turned off when the switch is turned on, and the first to third trigger circuits output a trigger pulse at the moment each timer circuit turns from on to off. A switching means for switching the drive transmission direction of the mirror drive motor is actuated via the mirror drive circuit, and a second timer circuit is turned on via the second trigger circuit.
The third timer circuit is turned on via the trigger circuit, and the fourth timer circuit is configured to turn on the first timer circuit to the second timer circuit via the third trigger circuit at the end of timing or at the instant of being turned off by a signal from the return command circuit. The gate circuit is configured to give a signal for forward or reverse rotation of the mirror drive motor to the mirror drive circuit according to the output from the first to fourth timer circuits, so that the mirror automatically rotates when the switch is turned on. The angle is shifted downward for the time set by the first timer, paused for the time set by the second timer circuit, then shifted to the right or left for the time set by the third timer circuit, and remains stationary, and the fourth timer circuit measures time. Upon termination or turning on the switch again, the mirror returns upward for the time set by the first timer circuit, pauses for the time set by the second timer circuit, then returns to the left or right for the time set by the third timer circuit, and then stops. An automatic angle change control device for an electric remote control mirror, characterized in that it is configured to.