JP2001130326A - Controller of electrical equipment for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To avoid cost increase, to satisfy the requirement of compacting electrical equipment and improving the degree of freedom of its design, and to accurately control a movable portion of the electrical equipment, when automatically controlling the electrical equipment for an automobile. SOLUTION: A motor rotation angle detecting circuit 13 is provided between a DC motor 5 and a controller 6 for adjusting a mirror tilting angle of a remote control type door mirror 1 to detect a rotation angle of the DC motor 5 based on a changing state of a current (i) flowing from the controller 6 to the DC motor 5. When a gear change lever is shifted to a reverse position during a back operation of the automobile, the DC motor 5 is operated and controlled on the basis of an output signal from the detecting circuit 13 to tilt a mirror downward by a predetermined angle. Then, when the gear change lever is shifted to a position other than the reverse position, the DC motor 5 is operated and controlled on the basis of an output signal from the detecting circuit 13 to tilt the mirror upward so as to have an original angle.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for electric components such as an electric remote control type mirror and a power window of a motor vehicle, and more particularly, to controlling a movable portion of the electric components in accordance with an operation state and an operation position. Belongs to the technical field of automatic control.

[0002]

2. Description of the Related Art Conventionally, as a control device for this kind of electric equipment for a vehicle, for example, as disclosed in Japanese Patent Laid-Open No. 50833/1984, an electric remote-controlled mirror is set at a predetermined angle when the vehicle is driven backward. There has been known a vehicle in which the vehicle is automatically tilted so as to face only downward, so that a road surface condition near a rear wheel, a gutter, a curb, and the like can be easily checked. In this apparatus, a DC motor for adjusting the vertical angle and the horizontal angle is provided in a remote control type mirror. For example, when a gear change lever of an automobile is operated to a reverse position, the above-mentioned time elapses until a set time elapses. By rotating the DC motor, the vertical angle of the mirror is changed downward by a predetermined angle.

[0003] However, in the motor in which the motor operation time is controlled as described above, the motor operation time is simply replaced by the rotation angle of the motor, that is, the tilt angle of the mirror for convenience. There was no control over the accuracy. That is, in the conventional example, for example, due to individual differences in motors, changes in the battery voltage of the automobile, and further increase in friction of the mirror over time, etc.
The error of the tilt angle of the mirror becomes large, and as a result, there is a problem that the original purpose of improving the visibility during the backward driving of the automobile cannot be sufficiently achieved.

[0004] For the same reason, when the mirror is once tilted downward during the backward operation of the automobile and then shifts to the forward operation again, the mirror may not return to the original angle. In this case, the driver has to readjust the angles of the mirrors one by one, so that the usability is extremely poor.

On the other hand, for example, Japanese Patent Publication No. 63-4325
As disclosed in Japanese Unexamined Patent Publication No. 5 (1993), the mirror tilt angle adjusting device is
A dedicated sensor (rotational position detector) for detecting the tilt angle of the mirror is provided, and the DC based on a signal from this sensor is provided.
It has also been proposed to perform automatic control for operating or stopping the motor. In this case, based on the output signal from the sensor, the inclination angle of the remote-control mirror can be appropriately adjusted according to the driving state of the vehicle. The above-mentioned problem can be solved because it can be adjusted accurately so as to be in a proper state.

[0006]

However, if a sensor for detecting the tilt angle of the mirror is provided as in the latter conventional example (Japanese Patent Publication No. 63-43255), the
It is inevitable that the parts cost will increase. In addition, when a sensor is incorporated in the mirror, a new harness such as a power supply line and a signal extraction line for the sensor is required, which further increases the cost.

Further, since it is necessary to secure a space for the sensor inside the mirror, it is against the demand for downsizing the electrical components, and furthermore, the design of the mirror is restricted, and the merchantability is lowered. May be caused.

In addition, even if an automatic control device as in the latter conventional example is to be added later to a general electric remote control type mirror in which the mirror angle is adjusted by manually operating a switch, extra space is required. There is a situation in which a control device cannot be substantially retrofitted because large-scale machining is required to incorporate the sensor inside the mirror without the mirror or the appearance of the mirror is impaired.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and a main object of the present invention is to make it possible to automatically control electric components for automobiles such as a remote control type mirror. To be able to perform accurate automatic control while avoiding increase in cost and satisfying the demands for downsizing electrical components and increasing the degree of freedom in the design by devising the method of detecting the operation amount of the section. It is in.

[0010]

In order to achieve the above object, the present invention focuses on the fact that the amount of power supplied to a DC motor changes with the rotation of the DC motor. The rotation angle of the DC motor is detected based on the change state of the amount.

Specifically, according to the first aspect of the present invention, the operation of the movable part is controlled by being connected to a DC motor that drives the movable part of the electric equipment for an automobile and adjusting the power supplied to the DC motor. It is assumed that a control device for an electrical component for a vehicle which performs the above-mentioned is used. A power adjusting circuit for adjusting an amount of power supplied to the DC motor; and a power adjusting circuit provided between the power adjusting circuit and the DC motor, based on a change in the amount of power supplied due to the rotation of the DC motor. A configuration is provided that includes a rotation angle detection unit that detects a rotation angle of the DC motor, and a control unit that controls an amount of power supplied to the DC motor by the power adjustment circuit based on a signal from the rotation angle detection unit.

According to the above configuration, when the DC motor rotates and receives power supply from the power adjusting circuit, the amount of power supplied to the DC motor changes substantially periodically due to a change in internal impedance accompanying the rotation. The rotation angle of the DC motor is detected by the rotation angle detection means based on this change state. That is, it is possible to accurately detect the rotation angle of the DC motor, that is, the operation amount of the movable part of the electric component, without disposing a sensor or the like for detecting the operation amount of the movable part in the automotive electrical component. Then, based on the detection result, that is, the signal from the rotation angle detection means, the control means controls the amount of power supply from the power adjustment circuit to the DC motor, thereby moving the movable part of the electrical component to its operating position, Appropriate control can be performed according to the amount, operation speed, and the like.

That is, accurate automatic control can be performed while avoiding an increase in the cost of electrical components for automobiles due to the addition of a sensor and the like, and satisfying the demand for downsizing and increasing the degree of freedom in design. Become.

According to the second aspect of the present invention, gear selection state detecting means for detecting a gear selection state of the transmission of the vehicle is provided, the electric component is a remote control type side mirror of the vehicle, and the DC motor is a side mirror of the side mirror. Provided to adjust the mirror tilt angle. And
The control means, when the selection state of the reverse gear of the transmission is detected by the gear selection state detection means, causes the power adjustment circuit to supply power to the DC motor so that the side mirror tilts downward, and thereafter,
When the rotation angle of the DC motor detected by the rotation angle detection means reaches a predetermined angle, the power supply to the DC motor is stopped.

According to this configuration, when the reverse gear of the transmission is selected during the reverse operation of the vehicle, the selection is detected by the gear selection position detecting means, and the power adjusting circuit is controlled by the control means. Power is supplied from the power adjusting circuit to the DC motor, and the rotation of the DC motor tilts the side mirror downward. Then, thereafter, when the rotation angle of the DC motor detected by the rotation angle detection means has reached a predetermined angle, the control means stops power supply to the DC motor. This makes it possible to automatically tilt the side mirror downward by a preset angle when the vehicle is driving backward, so that the driver can easily check the road surface condition near the rear wheel, the side grooves, the curb, and the like. be able to.

According to a third aspect of the present invention, the control means according to the second aspect of the present invention is configured such that the control means detects the change of the gear selection state of the transmission from the reverse gear to the other gears by the gear selection state detection means. A configuration in which power is supplied to the DC motor so that the mirror is tilted upward, and thereafter, when the rotation angle of the DC motor detected by the rotation angle detection means reaches a predetermined angle, power supply to the DC motor is stopped. And

According to this configuration, as in the second aspect of the present invention, after the mirror is once tilted downward in response to the reverse operation of the vehicle, when the vehicle again shifts to the forward operation, the gear is selected. The change in the gear selection state from the reverse gear to the other gear is detected by the detection means, and in response to this, the control means controls the power adjustment circuit, and the rotation of the DC motor causes the side mirror to turn upward. Be tilted. After that, when the rotation angle of the DC motor detected by the rotation angle detection means has reached a predetermined angle, the power supply to the DC motor is stopped by the control means. That is, when the side mirror is tilted downward by a preset angle in response to the backward driving of the car, the set angle is used. It is possible to tilt the side mirror upward only by the tilt angle at and automatically stop. As a result, when the vehicle shifts from reverse driving to forward driving,
Since the tilt angle of the side mirror can be automatically returned to the normal angle, the driver can adjust the mirror angle one by one,
There is no need to readjust, and good usability is obtained.

[0018]

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

FIGS. 1 and 2 show an embodiment in which the control device of the present invention is applied to an electric remote control type side mirror of an automobile. In FIG. 2, reference numeral 1 denotes a so-called door mirror attached to a lower end of a right front pillar of the automobile. . In this door mirror 1, an actuator assembly 3 is accommodated in a casing 2 shaped like a shell,
A mirror main body 4 composed of a plane mirror is disposed substantially all over the rear side of the casing 2, and the mirror main body 4 is attached to the actuator assembly 3 via a base plate 5. The vertical angle and the horizontal angle of the mirror body 4 are adjusted via a reduction gear device (not shown) by the operation of DC motors 5 and 5 (DC motors: shown only in FIG. 1) incorporated in the actuator assembly 3, respectively. It is supposed to be.

The actuator assembly 3 includes:
As shown in FIG. 1, two DC motors 5, 5 for adjusting the vertical angle and the horizontal angle of the mirror body 4 are stored, and each of the DC motors 5 is controlled by a wire harness to a controller 6 (controller). Device). The controller 6 is connected to a battery 7 which is a power source, and has at least a remote control operation switch 8 manually operated by a driver of the vehicle and a gear selection position switch 9 which is interlocked with operation of a gear change lever (not shown). (Gear selection state detecting means), and the switches 8 and
The power supplied to each of the DC motors 5 is adjusted in accordance with a signal input from the controller 9 to the controller 6, and the tilt angle of the mirror body 4 in the remote-controlled mirror 1 is adjusted.

More specifically, the controller 6 is provided with a CPU 12 that receives an output signal from the remote control operation switch 8 and outputs a control signal corresponding to the signal to a driver circuit 11. The received DC voltage is applied to the terminals of the DC motors 5 by the driver circuit 11 so that the DC motors 5 and 5 are rotated. With this configuration, the driver of the automobile operates the remote control operation switch 8 so that the driver can operate the mirror body 4 so as to obtain an appropriate rearward view in a substantially horizontal direction while sitting in the driver's seat during normal forward driving. Vertical and horizontal angles can be easily adjusted. Here, the driver circuit 11 includes a DC motor 5,
5 corresponds to a power adjusting circuit that adjusts the power supplied to the power supply 5, and corresponds to a control unit in which the CPU 12 controls the driver circuit 11. Note that a memory, an I / O interface, and the like in the controller 6 are not shown.

Further, as a feature of the present invention, the controller 6 is a motor rotation angle detection device for detecting the rotation angle of the DC motor 5 based on a change state of the current i supplied from the driver circuit 11 to the DC motor 5. It has a circuit 13 (rotation angle detecting means). The motor rotation angle detection circuit 13 focuses on the fact that the supply current i fluctuates due to the change in the internal impedance accompanying the rotation operation of each DC motor 5, and detects the rotation angle of the DC motor 5 from the fluctuation state of the current i. Specifically, the resistor 14 includes a resistor 14 for detecting a DC current i flowing from the driver circuit 11 to each DC motor 5, and a low-pass filter for removing a high-frequency component of a current waveform flowing through the resistor 14. The circuit includes a filter circuit 15, an amplifier circuit 16 including an operational amplifier for amplifying an output from the filter circuit 15, and a waveform shaping circuit 17 for shaping an output waveform from the amplifier circuit 16 into a rectangular wave. .

More specifically, the DC motor 5 used in the remote-controlled door mirror 1 of this embodiment has, for example, three slots as shown in FIG. A rotor 53 having three electromagnets 52, 52, 52 is attached to 51 via an insulating portion, and a stator 5 made of a permanent magnet is provided outside thereof.
4 are provided. A commutator 55 for supplying power to the coils of the electromagnets 52 is provided coaxially with the rotor 53, and brushes 56 and 56 are provided so as to contact the outside of the commutator 55. ing.

The rotating shaft 51 and the rotor 5
When the commutator 3 and the commutator 55 rotate integrally, each of the electromagnets 5 from the brushes 56, 56 via the commutator 55
2 is switched, and the polarity of each of the electromagnets 52 is successively inverted, so that the rotor 53
Repels the field of the stator 54 regardless of its rotational position, and rotates in one direction (counterclockwise in the illustrated example). On the other hand, if the direction of the current i to the brushes 56, 56 is reversed, the rotor 53 rotates in the direction opposite to the one direction.

With the rotation of the DC motor 5, the contact between the commutator 55 and the brushes 56 changes as shown in FIGS. 4A to 4E. The induced electromotive force of the coil of each electromagnet 52 changes to correspond to the position, and as shown in FIG. 5A, the motor current i, that is, the current i supplied from the controller 6 to the DC motor 5 Fluctuates at a substantially constant cycle so as to correspond to the rotation angle. FIG. 5A shows a change state of the current i detected based on the voltage drop between both ends of the resistor 14 in the controller 6, and the waveform of the current i passes through the filter circuit 15 and is smooth. As a result, a signal waveform i 'as shown in FIG.

Subsequently, as shown in FIG. 3C, the signal is amplified by the amplifier circuit 16 and the amplified signal i ″ is amplified.
Is shaped into a rectangular wave by the waveform shaping circuit 17 and is input to the CPU 12 as a pulse signal p. And CPU
The number of input pulses is counted by a counter 12 and the rotation angle of the DC motor 5, that is, the tilt angle of the mirror body 4 is detected based on the counted value. In this embodiment, as shown in FIG. 5, the pulse signal p is input once each time the rotation angle of the DC motor 5 changes by 60 °, so that the mirror body 4 and the DC motor 5 are driven. If the gear ratio of the reduction gear device to be connected is, for example, 2
If it is set so that the mirror angle changes by 10 ° when rotated 0, the tilt angle of the mirror body 4 changes by 10 ° when the pulse signal p is counted 120 times. Become. Note that even if the motor current i contains a noise component as shown in FIG.
As shown in (d), there is no error in the pulse number p after the waveform shaping, so that the rotation angle of the DC motor 5 can be accurately detected.

Therefore, as will be described later, the controller 6 controls the power supply to the DC motor 5 based on the count value of the pulse signal p, so that the tilt angle of the mirror body 4 can be accurately adjusted. it can. Hereinafter, an example of the mirror angle control procedure will be specifically described based on the flowchart shown in FIG. The control of this flow is realized by a control program electronically stored in the memory of the controller 6 being executed by the CPU 12 at a predetermined interval. Of the power supply to the DC motor 5 by the control means.

First, step S after the start shown in FIG.
In step 1, the CPU 12 receives output signals from the remote control operation switch 8, the gear selection position switch 9, the waveform shaping circuit 17, and the like. Subsequently, in step S2, it is determined whether or not the gear change lever is at the reverse position based on the signal from the switch 9, and if the gear change lever is not at the reverse position, it is determined that the vehicle is not in the reverse operation and no. On the other hand, if the gear change lever is at the reverse position on the other hand, the process proceeds to step S8.

In step S3, a reverse determination flag F indicating that the gear change lever has been operated to the reverse position is turned on (F ← 1).
In step 4, if there is an input pulse p from the waveform shaping circuit 17, it is counted and the count value p1 is stored in the memory. Subsequently, in step S5, the pulse count value p1
Is smaller than a preset value p *, and p is determined.
If 1 <p * and yes, the process proceeds to step S6, and the driver circuit 11 sends D to the mirror body 4 so that the mirror body 4 faces downward.
A current i is supplied to the C motor 5, and the DC motor 5 is rotated in one direction, and then returns.

With the rotation operation of the DC motor 5 as described above, the DC motor 5 is rotated as shown in FIG.
The supply current i to the CPU fluctuates, and the waveform shaping circuit 17
12, the pulse signal p is input, and the pulse count value p1 in step S4 increases. Then, when the mirror body 4 is tilted downward by a predetermined angle set in advance, in step S5, p1 ≧ p *, and it is determined to be no. At this time, the process proceeds to step S7, in which the power supply from the driver circuit 11 to the DC motor 5 is terminated.
The motor 5 is stopped, and the process returns.

That is, when the gear change lever is operated to the reverse position during the reverse operation of the vehicle, the waveform shaping circuit 1 is operated.
The DC motor 5 is rotated in one direction until the input pulse number p1 from the CPU 7 to the CPU 12 becomes p *.
Is changed downward by a predetermined angle corresponding to the pulse count value p *. Thereby, the driver of the vehicle can easily check the road surface condition, the side gutter, the curb, etc., near the rear wheel without changing the sitting posture. On the other hand, in the step S2, it is not during the backward driving. In step S8, which has been determined to be “no”, it is determined whether or not the reverse determination flag F is on. If this determination is yes, since the gear change lever has just been operated from the reverse position to any other position, the process proceeds to each step after step S9, and the DC motor is operated to return the mirror tilt angle to the normal state. 5 is controlled. On the other hand, if the determination is no, since the mirror tilt angle of the door mirror 1 is in a normal state, the operation returns without performing the operation control of the DC motor 5.

Then, in step S9, the pulse input from the waveform shaping circuit 17 is counted, and in step S10, it is determined whether or not the pulse count value p2 is smaller than the value p1 stored in the memory. This judgment is y
If es (p2 <p1), the process proceeds to step S11, and the driver circuit 1 is turned on so that the mirror body 4 faces upward.
1 supplies a current i to the DC motor 5,
Is rotated in the direction opposite to the one direction, and then returns.

When the pulse signal p is input from the waveform shaping circuit 17 to the CPU 12 with the rotation operation of the DC motor 5 and the tilt angle of the mirror body 4 returns to the normal state, the process proceeds to step S9. When the pulse count value p2 becomes equal to p1 (p2 = p1), step S
At 10 it is determined no. At this time, the process proceeds to step S12, where the driver circuit 11 sends the DC motor 5
Power supply to the DC motor 5 is stopped, and the DC motor 5 is stopped. Subsequently, in step S13, the pulse count values p1 and p2 are reset (p1 = p2 = 0), and in the subsequent step S14, the reverse determination flag F is reset (F ← 0), and thereafter, the process returns.

That is, when the driver returns the gear change lever from the reverse position to any other position after the vehicle is driven backward, the mirror body 4 that has been turned downward is tilted upward, and automatically returns to normal. This allows the driver of the vehicle to obtain a normal good rear view without having to readjust the mirror angle one by one.

Therefore, according to the control device for the remote-controlled door mirror according to this embodiment, the current i supplied to the DC motor 5 fluctuates with the rotation operation of the DC motor 5 for adjusting the inclination angle of the mirror body 4. Focusing on this fact, the rotation angle of the DC motor 5, that is, the tilt angle of the mirror main body 4 is detected based on the change state of the current i, so that sensors such as an encoder and a potentiometer are arranged inside the door mirror 1. Even if it is not provided, the mirror body 4 in the door mirror 1 when the vehicle is moving forward or backward, respectively.
The angle of inclination of is accurately detected, and based on this detection result,
Accurate adjustment can be made so that the driver can obtain an appropriate field of view according to each driving state.

Further, in this control device, since it is not necessary to dispose a sensor in the door mirror 1 as described above, it is possible to avoid an increase in component costs for the sensor and the wire harness. Further, since it is not necessary to secure a space for the sensor inside the door mirror 1, there is no hindrance to the demand for compactness and improvement in design flexibility.

In addition, this control device does not require large-scale mechanical processing and can easily be applied to a general electric remote control type mirror in which the mirror angle is adjusted by manually operating a remote control operation switch. An excellent effect can be obtained that can be retrofitted and does not impair the appearance of the mirror at that time.

It should be noted that the present invention is not limited to the above-described embodiment, but includes other various embodiments. That is, in the above-described embodiment, the rotation angle of the DC motor 5 is detected based on the change state of the current i supplied from the controller 6 to the DC motor 5, but the invention is not limited thereto. It is also possible to detect a voltage applied between the terminals and detect a rotation angle of the DC motor 5 based on a change state of the voltage.

In the above embodiment, the DC motor 5 has three slots, but is not limited to this.
For example, the present invention can be applied to a motor having 4 to 12 slots, and further applicable to a brushless motor.

In the above embodiment, the present invention is applied to an electric remote control type side mirror as an electric component for a vehicle. However, the present invention is not limited to this. For example, a power window device, an electric sunroof device, and an electric type The present invention can also be applied to a steering position adjusting device, a seat position adjusting device, and the like.

Further, in the above embodiment, the DC motor 5
Is controlled on the basis of the tilt angle of the mirror body 4 of the door mirror 1, that is, the operation amount of the movable part of the electrical component. However, the present invention is not limited to this. You may do so. For example, in a vehicle equipped with a power window device, an occupant may erroneously pinch a part of the body between the window glass and a door sash. Is controlled in accordance with the position and the opening / closing speed, so that when a part of the occupant's body is caught between the window glass and the door sash, DC is controlled.
Since the rotation speed of the motor 5 is reduced and the input period of the pulse signal p is lengthened, it can be seen that the closing operation speed of the window glass has been reduced. Accordingly, the closing operation of the window glass is stopped immediately. Can be done.

[0042]

As described above, according to the control apparatus for an electric component for an automobile according to the first aspect of the present invention, the rotation of the DC motor for driving the movable portion of the electric component for the automobile causes the DC electric motor to rotate. Focusing on the fact that the amount of power supply varies, the rotation angle of the DC motor corresponding to the amount of operation of the movable part of the electrical component is detected by the rotation angle detection means based on the change in the amount of power supply. By controlling the amount of electric power supplied from the electric power adjustment circuit to the DC motor by the control means based on the detection result, the electric component movable portion is appropriately controlled in accordance with the operation position, the operation amount, the operation speed, and the like. be able to. As a result, accurate automatic control can be performed while avoiding an increase in the cost of electrical components for automobiles and satisfying the requirements for downsizing and improvement in design freedom.

According to the second aspect of the present invention, the present invention is applied to a remote control type side mirror of an automobile, and the inclination angle of the mirror is automatically changed downward by a preset angle when the automobile is driven backward. Thus, the driver can easily confirm the road surface condition near the rear wheel, the gutter, the curb, and the like.

According to the third aspect of the present invention, in addition to the effect of the second aspect of the present invention, when the mirror is once tilted downward during the backward operation of the vehicle, and then shifted to the forward operation again, the inclination of the mirror is reduced. Since the angle can be automatically returned to the normal angle, good usability is obtained.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a schematic configuration of an embodiment of the present invention.

FIG. 2 is a perspective view showing an example of a door mirror to which the embodiment is applied.

FIG. 3 is an explanatory diagram showing a structural example of a DC motor.

FIG. 4 is an explanatory diagram showing a state in which a contact state between a commutator and a brush changes with a rotation operation of a DC motor.

FIGS. 5A and 5B are explanatory diagrams showing a correspondence relationship between a rotation angle of a DC motor and a change state of a motor current, and explanatory diagrams showing an output after signal processing of the motor current in a stepwise manner; FIGS. (d).

FIG. 6 is a flowchart illustrating a procedure of controlling the angle of a door mirror;

[Explanation of symbols]

A Control device for automotive electrical components 1 Remote-controlled door mirror (automotive electrical components) 4 Mirror body (movable part) 5 DC motor (DC motor) 6 Controller 9 Gear selection position detection switch (Gear selection state detection means) 11 Driver circuit ( Power control circuit) 12 Microprocessor (control means) 13 Motor rotation angle detection circuit (rotation angle detection means)

 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tomoyuki Ichi 1-23-9 Imaikecho, Anjo-shi, Aichi F-term in Okazaki Development Center, Mitsubishi Cable Industries, Ltd. F-term (reference) 2E052 AA09 CA06 EA14 EA15 EB01 GA08 GA10 GB06 GC06 GD09 KA13 3D053 FF29 FF40 GG06 HH18 HH29 JJ14 KK12 3D127 AA06 AA17 AA19 BB01 DF04 DF36 FF21 FF23

Claims (3)

[Claims] 1. An automotive electrical component connected to a DC motor that drives a movable portion of an electrical component for an automobile and controlling the operation of the movable portion by adjusting power supplied to the DC motor. In the control device, a power adjustment circuit that adjusts an amount of power supply to the DC motor; and a power adjustment circuit that is provided between the power adjustment circuit and the DC motor, and that changes a power supply amount due to a rotation operation of the DC motor. Rotation angle detection means for detecting the rotation angle of the DC motor based on the control signal, and control means for controlling the amount of power supplied to the DC motor by the power adjustment circuit based on a signal from the rotation angle detection means. A control device for electrical components for automobiles, comprising: 2. The vehicle according to claim 1, further comprising gear selection state detection means for detecting a gear selection state of a transmission of the vehicle, wherein the electrical component is a remote control type side mirror of the vehicle, and the DC motor is the side mirror. The control means includes: a power adjustment circuit that tilts the side mirror downward when the gear selection state detection means detects a reverse gear selection state of the transmission. Power supply to the DC motor, and thereafter, when the rotation angle of the DC motor detected by the rotation angle detection means reaches a predetermined angle, the power supply to the DC motor is stopped. A control device for automotive electrical components. 3. The side mirror according to claim 2, wherein the control means includes means for tilting the side mirror upward when the gear selection state detection means detects that the gear selection state of the transmission has changed from the reverse gear to another gear. Power supply to the DC motor, and thereafter, when the rotation angle of the DC motor detected by the rotation angle detection means reaches a predetermined angle, the power supply to the DC motor is stopped. A control device for electrical components for automobiles, characterized in that: