JPS5948182B2 - Electric remote control mirror angle control device - 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, an electric type that is equipped with two motors for each mirror that is to be deflected, one motor is used to deflect the mirror in the vertical direction, and the other motor is used to deflect the mirror in the horizontal direction. This invention relates to an automatic angle control device used in a remote control mirror. 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 for other remote-controlled mirrors.

With conventional mirrors of this type, when a switch is turned on, the electric remote control mirror automatically turns left/right or up/down, remains stationary for a certain period of time, and then automatically reverses itself again. The structure is such that it returns to its original position by changing the angle in that direction.

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. 5. Such a remote control mirror is used to visually check the position near the vehicle body by shifting the mirror from the eye point at a certain point when changing lanes or turning left or right during normal driving.

However, in the case of the above-mentioned conventional technology, the electrically operated outside mirror on the opposite side of the car from the driver's seat (the left side in the case of a car) is used to automatically change the angle of the electrically operated outside mirror to view the road shoulder, gutter, curb, etc. However, there is a problem in that if you simply change the angle directly below from the normal eye point, the body of the car actually gets in the way, making it virtually impossible to see anything that is very close to the tires. Therefore, it was difficult to pull the car over without relying on intuition. In addition, in the prior art, the mirror cannot be deflected in both the vertical and horizontal directions at the same time, and the mirror is first deflected in either the vertical direction, and then the mirror is deflected in the horizontal direction. It's summery. The same applies to returning to the original position. Therefore, it takes time from the start to the end of the angle change or from the start to the end of the return. Hurry up and change the angle.
I sometimes felt inconvenienced when I wanted to return to work. In some cases, such as during an emergency, it may be necessary to change the angle and return quickly, so this is also a problem in terms of danger prevention. Furthermore, in the conventional example, once the switch is turned on, it does not begin to return until a certain period of rest 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 changes the angle of the electric mirror straight down and simultaneously changes the angle inward of the car (to the right in Japanese cars), thereby changing the angle of the car in an extremely short time. You can see the tire pole in the mirror, so you don't have to rely on intuition.You can pull over while actually visualizing it, making it safe and reliable, and the return time is short, which is advantageous. Electricity. The purpose of the present invention is to provide an automatic angle control device for a dynamic remote control mirror.

If it is possible to actually see the vicinity of the tire in a short time in this way, it will not only be convenient but also improve safety, which is extremely advantageous especially for beginners. More books. Another object of the 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. An example of implementing the present invention will be described below 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 Fig. 1, 1 is a switch, 2 is a variable angle command circuit, and 3 is a return command circuit.When the first to third timer circuits 4, 5, and T are all off, pressing switch 1 activates the variable angle command circuit. 2 operates, generates a negative trigger pulse, and turns on all of the first to third timer circuits 4, 5.T at the same time.

．． Further, when the switch 1 is pressed when only the third timer circuit T is in the on state, the return command circuit 3 is activated to generate a negative reset pulse and turn off the third timer circuit 7. The first timer circuit 4 is a timer for setting the operating time of the first motor for vertical driving built into the electric remote control mirror, and the second timer circuit 5 is a timer for setting the operating time of the second motor for driving the left and right sides.
The third timer circuit T is a timer for setting the rest time of the mirror after the angle change is completed. 6 is a trigger circuit which generates a trigger pulse at the moment when the third timer circuit changes from the on state to the off state, and at this time, the first and second timer circuits 4 and 5
It plays the role of turning on both sides.

8 is a gate circuit which selects the output signals of the first and second timer circuits 4 and 5 according to the output and signal of the third timer circuit T, and operates the first and second motors for vertical driving and horizontal driving. A signal indicating either normal rotation or reverse rotation is given to the mirror drive circuit 9.

Further, the output signals of the first to third timer circuits 4, 5, and T also give signals to the angle change command circuit 2 and the return command circuit 3 (see broken lines in the figure). The mirror drive circuit 9 uses a signal from the gate circuit 8 to drive the first and second built-in remote control mirrors.
It is used to rotate the motor forward or reverse, and to angle and return the remote control mirror. Reference numeral 11 denotes an ordinary remote control mirror manual switch used to set the ordinary mirror position (eye point).

FIG. 2 shows a relational diagram of the output timing of each of the first to third timer circuits 4, 5, and T. In the figure, tl=tl'
,T,=T,', and tl is for vertical drive. The time for the first motor to rotate forward and the mirror to tilt downward, T,' is the time for the first motor to rotate in the reverse direction and the mirror to return to the upward direction.
2, the second motor for left and right drive rotates forward and the mirror moves to the right (
The time for turning the mirror to the left (or left) direction, T,'' is the time for the motor to reverse direction and the mirror to return to the left (or right) direction. ) is the time during which the mirror remains stationary after the end of the angle change, and if the third timer circuit T is turned off by the reset signal and T becomes LOW before the time measurement of T3 ends, the first timer starts from that moment. Circuit 4 is turned on and time measurement of t1'' and T2$ begins. FIG. 3 shows the basic circuit of this embodiment.

In Fig. 3, R1 to Rl3 are resistors, C1 to C3 are capacitors, D1 to D2 are backflow prevention diodes, and Trl to T
rl2 is a transistor, ANDl~6 are AND gates,
NOR1~2 is Noah gate, 0R1~2 is OR gate,
INV is an inverter, T1 to F3 are first to third timer circuits, which are turned on by a negative trigger pulse and reset by a negative reset pulse, and the output is LOW level in the off state and high level in the on state. That's what it is.,M
v is the first motor for vertically driving the remote control mirror, MH
Similarly, MS is the second motor for left and right drive, and MS is a manual switch for the normal electric remote control mirror. ．． Sw is a general switch.

The correspondence between FIG. 3 and FIG. 1 is that Sw and R1 are switch 1.
, ANDl, NORl and C1 are the angle change command circuit 2, AN
D2, NOR2 and C2 are the return command circuit 3, and T1 is the first
Timer circuit 4, "1" 2 is second timer circuit 5, T3
is the third timer circuit 7, C3 is the trigger circuit 6, 0R1
~2, INV and AND3~6 are gate circuits 8, R2~
R.13 and Trl to Trl2 are the mirror drive circuit 9, M
MH corresponds to the electric remote control mirror 10, and MS corresponds to the manual switch.

The configuration and operation of this example will be described in detail below with reference to FIG.

Before actual use, the eye point is set in advance using the manual switch MS.

In this state, that is, before the normal automatic angle change device is activated, the first to third timer circuits T1 to T3
The output of is LOW, and the outputs of AND3 to 6 are all LO
Since it is w, the mirror drive circuit 9 does not work and the mirror is stopped. At this time, the output of the first timer circuit 1'1 is LOW
, since the output of the third timer circuit T3 is LOW, NORl
The output of NOR2 is High, the output of NOR2 is Low, and one input of AND1 and AND2 is connected to the power supply through R1 and is High, so AND
The output of 1 is High, and the output of AND2 is LOW. Next, the operation of automatic angle change will be explained.

When parking in a garage or pulling over to the side, press Sw to activate the automatic angle change device and change the angle of the remote control mirror, and the three points in the diagram will change to H.
Since it goes from ``high'' to ``LOW'', the output of ANDl becomes ``Gh''.
As a result, a negative trigger pulse is generated by the capacitor C1, and the first to third timer circuits Tl, T2, and T3 are all turned on. The time (t1) when the output of the first timer circuit T1 is High is the time when the output of the first timer circuit T1 is High.
The output of the timer circuit T3 is also Gh, the output of AND3 becomes High, Trl is turned on via the base resistor R1, the base current flows to Tr2 through the current limiting resistor R3, and this Tr2 is turned on. Also, the output of AND3 turns on Tr7 via 0R2 and base resistor R3, and the base current flows to Tr through current limiting resistor R.
8 is also turned on. Therefore, when Tr2 and Tr8 are turned on, a current (11) flows through the first motor MV, and this motor M rotates in the forward direction. Furthermore, since the second timer circuit T2 is also turned on at the same time, the circuit driven by this circuit T2 also operates. In other words, during the time (T2) when the second timer circuit T2 is high, the output of the third timer circuit T3 is also high.
Since the output of AND5 becomes Gh, Tr7 turns ON through 0R5 and base resistor R8, and the base current flows to Tr8 through current limiting resistor R, turning Tr8 on. Also, the output of AND5 turns on the Tr through the base resistor RlO, and the Tr is turned on through the current limiting resistor Rll.
A base current flows through lO and TrlO is also turned on. Yotsute T
By turning on r8 and TrlO, the second motor M
A current (I2) flows through H, and this motor MH rotates in the forward direction. As a result, since T2 times t1, the mirror will be deflected to the right (or left) and downward at the same time during T2, and the mirror will be deflected downward during the time (t1-T2), and then Corner ends. All you have to do is park the car in a garage, move it around, etc. while it is in a stationary state after completing this angle change. This is because at this time, the mirror is located at a position on the inside in the downward direction where the vicinity of the tire can be visually recognized. Next, the mirror return operation will be explained.

When you press Sw to return the mirror to its original position (eye point), the three points change from Gh to LOW. At this time, the output of the third timer circuit T3 is still Highj first,
Since the outputs of the second timer circuits Tl and T2 are both LOW, the output of 0R1 is LOWl, so the output of NORl is LOW.
At w, the output of NOR2 is Gh, the output of ANDl is LOW, and the output of AND2 is High, so when the three points change from Gh to LOW, AND2
The output of C changes from High to LOW, and the output of capacitor C,
As a result, a negative reset pulse is generated, and therefore the third timer circuit T3 is turned off. This third timer circuit T
At the moment when the output of No. 3 changes from High to Low, a negative trigger pulse is generated by the capacitor C forming the trigger circuit, and is passed through D to the first and second timer circuits T1 and T.
Therefore, both timer circuits Tl and T are turned on. During the time when the output of the first timer circuit T1 is High (tl''), the output of the third timer circuit T3 is LOW.
Therefore, the output of AND4 becomes High, and the base resistance R
The Tr3 is turned on through the current limiting resistor Rδ, and the base current flows to the Tr4 through the current limiting resistor Rδ, and the Tr4 is turned on. Also, A
The output of ND4 turns on Trδ through 0RI and R6, and the base current flows to Tr6 through current limiting resistor R7, turning on Tr6 as well. When Tr4 and Tr6 are turned on, a current (I3) flows through the first motor Mv, causing the motor Mv to rotate in reverse. Also, at this time, the second timer circuit T2 is also in the ON state, so during the time (T,') when the output of the second timer circuit T is High, the output of the third timer circuit T3 is LOW, so AND6 The output of becomes High, Tr6 is turned on via 0R1 and base resistor R6, the base current flows to Tr6 through current limiting resistor R, and Tr6 is turned on. In addition, Trll is turned on via the base resistor Rl2 by the output of AND6, and the base current flows to Trl through the current limiting resistor Rl3, and Tr., is also turned on. In this way, Tr6 and Trl2
is turned on, the second motor MH receives a current (I
, ) flows and the motor MH reverses. As a result, T
At time 2', the remote control mirror does not return to the left (or right) direction and upward direction at the same time, (T,'-T,'
) returns upward, and the return ends at this time. As described above, during the times T2 and T2'', the mirror is tilted or returned to its original position.

When the mirror is in the middle of changing angle or returning due to flipping, that is, when the first and second timer circuits T1 and T2 are on, the output of the first timer circuit T1 is High, so the output of NORI and NOR2 is The output is LOW and E.
The ANDI and AND2 outputs are LOW, so press the switch Sw. Even if the point changes from High to LOW, there is no change in the output of AND1 and AND2,
No trigger pulse is generated and no action occurs.

Furthermore, even if you do not press the switch Sw after parking or pulling over, for example, if the driver leaves the car, the third timer circuit T3 will stop timing as long as you do not turn off the power to the device. At this point, the same effect as described above occurs, and the mirror automatically returns to its original position.

As detailed above, according to the present invention, it is possible to automatically change the mirror vertically and horizontally to a preset position in a short time by simply operating a switch. After coming to rest, the mirror automatically 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 accurately and easily change the mirror field of view. Furthermore, in the present invention, by deflecting the mirror downward and at the same time inward (to the left or right), it is possible to immediately see the vicinity of the tire. It is advantageous when you want to quickly see the very vicinity of the tires, such as the road shoulder, gutter, curb, etc. on the opposite side of the road, such as when passing each other on a narrow road. This has the effect of allowing accurate and safe driving. Since the recovery time is short, prompt measures can be taken even in an emergency, and safety is improved.
In addition, by providing a shift command circuit and a return command circuit, it is possible to output the shift and return signals with the same operation of one switch, so the number of switches is reduced, the operation is simple, and the cost is low. It also has the effect of reducing it. It should be noted that, as a matter of course, the present invention is not limited to the illustrated embodiment.

[Brief explanation of drawings]

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...Angle angle command circuit, 3...
Return command circuit, 4, 5, T, T,, T,, T3... timer circuit, 6, C3... trigger circuit, 8... gate circuit, 9... mirror drive circuit, Mv-MH ...
1st and 2nd motor.

Claims (1)

[Claims] 1 switch, an angle change command circuit and a return command circuit operated by the switch, a first timer circuit for setting the operation time of the first mirror drive motor, and a first timer circuit for setting the operation time of the second mirror drive motor. It is equipped with two timer circuits, a third timer circuit for setting the motor rest time, a gate circuit connected to each timer circuit, and a mirror drive circuit. The circuit is also connected to a return command circuit, the third timer circuit is connected to the first and second timer circuits via a trigger circuit, and the angle change command circuit is connected to the first to third timer circuits.
When all the timer circuits are in a stopped state, the first to third timer circuits are turned on by turning on the switch, and the return command circuit is configured to turn off the third timer circuit by turning on the switch when only the third timer circuit is in the on state. The trigger circuit generates a trigger pulse to turn on the first timer circuit and the second timer circuit at the moment when the third timer circuit turns from on to off, and the gate circuit By selecting the output signal of the timer circuit with the output signal of the third timer circuit and giving a signal for forward or reverse rotation of the first and second motors to the mirror drive circuit, the mirror automatically rotates when the switch is turned on. At the same time, the angle is shifted downward for the time of the first timer circuit, and at the same time, the angle is shifted to the right or left for the time of the second timer circuit and remains stationary, and then, when the third timer circuit finishes timing or the switch is turned on again. The mirror is configured so that it is deflected upward for the time set by the first timer circuit and at the same time deflected to the left or right for the time set by the second timer circuit, and then returns to its original position and stops. Features an automatic angle control device for electric remote control mirrors.