JPS5922191A - Controller for automobile - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automobile control device in which signals are exchanged between an automobile door and a vehicle body, and particularly to a subsidiary device that reduces electrical wiring between the door and the vehicle body.

Recently, electronic devices with advanced functions such as drive computers and constant speed running devices have been installed in automobiles. These devices include an operating device equipped with switches for setting time data and driving data, and a control circuit that controls various indicators and actuators in response to inputs to this operating device and detection values from various sensors. It consists of

By the way, this control device must be placed around the driver's seat so that it can be easily operated by the driver, but as the number of such electronic devices increases, it is necessary to make effective use of the limited space around the driver's seat. Therefore, a method is often used in which a control device is installed on the driver's side door and sends a signal to a control device installed in the vehicle body.

However, in the past, the signal from the operating device installed on the door was connected to the vehicle body from one end of the door by an electric wire, which caused frequent bending and stretching in a straight line as the door opened and closed, leading to accidents such as wire breakage. It is becoming more likely to occur. Furthermore, as the signals from the controller increase and the number of electric wires increases, this type of connection becomes difficult in terms of space and reliability.This invention was developed in view of these points. The purpose is to abolish the electric wires that transmit signals,
The object of the present invention is to provide a space-saving and highly reliable automotive control device that transmits signals using light.

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

FIG. 1 is a configuration diagram showing an embodiment of the present invention. In the figure, (1) indicates a plurality of switches (2a) or 2d.
), (3) is a light-emitting diode that serves as an electro-optical converter that converts an electrical signal into an optical signal, and (4) is a time division multiplexer that serially serializes multiple signals from the controller (1). It is a transmitting circuit that converts the signal into a control signal and drives the light emitting diode (3) based on this signal, and these operating devices (
1), light emitting diode (3), and transmitter circuit (4) are connected to the door (
5). Also, (6) is a light emitting diode (3)
A phototransistor (7) serves as a photoelectric converter that receives the optical signal emitted by the device and converts it into an electric signal. A control circuit that outputs a predetermined control signal (8), a phototransistor (6), and a control circuit (7) are arranged in the vehicle body (9).

FIG. 2 is a perspective view showing how the operating device (1), light emitting diode (3), and phototransistor (6) explained in FIG.
a) or 2d), (5), and (9) are the same parts as in Figure 1, and the door (5) is attached to the vehicle body (
9), and the operating device (1) is provided on the surface of the single room side of the door (5) and includes switches (2a) to 2d). (b) is a shutter that can block light, and the door (5) is on the back side of the shutter 0υ on the door (5) side.
A light emitting diode (3) is installed inside the car body (
A phototransistor (6) is installed inside the vehicle body (9) on the back side of the shutter αυ on the side 9). (2) is a rod installed so as to slide in a direction perpendicular to the end surfaces of the door (5) and the vehicle body (9).
When the door (5) and the vehicle body (9) are closed, the rod a2 (2)? Push-in double shutter (
b) tJll is opened so that the optical axes of the light emitting diode (3) and the phototransistor (6) are aligned.

Figure 3 is a cross-sectional view of the cross-section of Figure 2, seen from above. Stopper, (to) slides the rod (2) @ shutter (b)
The link converts the opening/closing operation of
One end (llb) of an arm (lla) fixed to the shutter (b) is inserted into the frame, and the arm (Ila) is connected to the link (
The gap is provided so that even if the link (to) rotates, it will not collide with the link (to). The shutter (b) is a light emitting diode (3)
The shutter (b) is located between the light emitting part (3a) of the door (3a) and the window (a) provided in the door (5), and in the state shown in the figure, the shutter (b) is closed and is based on the window (04). (16) is a spring stretched between the door (5) and the link (to). When the door (5) is open as shown in Fig. 2, the link 03 is moved by the arrow (C ), and at the same time link 0
pushes the rod (6) and is held in a position where it is stopped by the stopper (12a).

Figure 4 is a cross-sectional view of the person in Figure 2, similar to Figure 3, and shows the state when the door (5) is closed;
) closes, the end surface of the car body (9) becomes closer to the rod (6).
), and the movement of the rod (6) moves the shutter 0υ upward in the figure via the link (to).

This allows the window to open and the light emitting diode (3) to emit light out of the door (5) through the window a4.

By the way, the cross section of section B in FIG. 2 viewed from above is the third section.
4, the door (5) is replaced with the vehicle body (9), and the light emitting diode (3) and its light emitting part (3a) are replaced with a phototransistor (6) and its light receiving part (not shown). Since they are exactly the same, the explanation will be omitted.

The operation of the embodiment of the invention configured as described above will be described below.

In Fig. 2, when the door (5) is closed, the rod (2) (
2) is pushed in by the door (5) and the vehicle body 9), and the rod (2) slides to the left in the figure as shown in Figure 4, pushing link 0 against the spring (15) and releasing the link ( 2
) rotates in the direction of arrow (D) at rotation p about the axis center (13a). As the link (to) rotates, the groove (xa
One end (11b) of the arm (lxa) fitted into b) slides in this groove (13b), and the shutter (6) fixed to this arm (Xta) moves upward in the figure,
It is maintained as shown.

In this way, with the door (5) closed, the driver can press the switch (2a) of the operating device (1) shown in FIG.
) or 2d), the transmitting circuit (4) detects the operating state of these switches (2a) or 2d), and sends a control indicating the operating state of each of these switches to each time address determined by time division. The optical signals emitted by the six light-emitting diodes (3) are converted into temporally serial time-division multiplexed signals containing sequential signals, and the light-emitting diodes (3) are driven based on this signal. The light is received by the phototransistor (6) through a window (not shown) on the vehicle body (9) side provided at a position opposite to this window (14) through α4, and is converted into an electrical signal, as shown in FIG. It is input to the control (goods) circuit (7). The control circuit (7) decodes this signal and operates the controller (1).
), and outputs a predetermined control signal (8) corresponding to the operating state. This control signal (8) causes the drive computer to set the departure time, reset the trip meter, etc., and in the constant speed driving system,
The actuator is driven to set and release the vehicle speed.

In this way, electric wires for transmitting signals, which were necessary in the past, are no longer necessary, so accidents such as wire breakage are avoided and reliability is improved. In addition, multiple switch input signals are sent to the transmitting circuit (4
) converts them into temporally serial signals, so a large number of signals can be transmitted using a pair of light emitting diodes (3) and phototransistors (6).

Now, as shown in Figure 2, when the door (5) opens, the rod (2)
(2) As the force to push is gone, as shown in Figure 3, the link (rotation) moves as shown in the arrow (C) due to the tensile force of the spring (1 phrase).
Accordingly, the rod (b) slides to the right in the figure and is held at a predetermined position by the stopper (12a). Because the link (2) rotates in this way, the groove (
One end of the arm (lla) (1lb
) moves downward in the figure, so this arm (lla)
The shutter (b) to which it is fixed is also moved downwards in the figure, covering the window α fathom, and held in the position shown in the figure.

In this way, when door (5) opens, door (5)
The side shutter (B) and the vehicle body (9) side shutter (B) are closed respectively, and the window C141 on the door (5) side and the vehicle body (9) are closed.
Light emitting diodes (3) to cover side windows (not shown)
Prevents foreign matter such as dust from adhering to the light-emitting part (3a) of the phototransistor (3a) and the light-receiving part of the phototransistor (6), and the amount of light emitted and received light decreases due to the adhesion of dust, making it impossible to accurately transmit signals. This kind of situation can be avoided in advance. By the way, the transmitting circuit (4) requires a power source, and the power line (not shown) must not be drawn into the door, but such a transmitting circuit (4) generally consumes only a small amount of power. (4) If a dedicated battery is provided inside the door (5), it is possible to completely eliminate the electric wire between the door (5) and the vehicle body (9).

In addition, the operating device (1), light emitting diode (3), and transmitter circuit (4) are installed in the vehicle body (9), and the phototransistor (6) and control circuit (7) are installed in the door (5). The vehicle body (9) 9111 can drive, for example, a power window device or an automatic door lock device for the door (5), and furthermore, both the door (5) and the vehicle body (9) are equipped with an operating device (1), a light emitting diode (3), and a transmitter. Circuit (4), phototransistor (
6) The same effect can be expected even if the control circuit (7) is arranged so that signals can be transmitted between the door (5) and the vehicle body (9).

Note that the effect remains the same even if applied to other doors, not just the driver's side door.

As explained above, the present invention provides an operating device, an electro-optical converter (light-emitting diode), and a transmitting circuit on at least one of the door or the body of a car, and transmits an optical signal from the electro-optic converter to the other side. A receiving photoelectric converter (phototransistor) and a control circuit are installed, and when the door is closed, the optical axes of the photoelectric converter and the photoelectric converter are almost aligned. This eliminates the need for electric wires to transmit signals from the operating device to the open circuit, which has the effect of avoiding accidents such as wire breakage and improving reliability.

In addition, when the door is open, shutters close on the front surfaces of the light emitting part of the electro-optical converter and the light receiving part of the photoelectric converter, which prevents foreign matter from adhering to the surfaces of the light emitting part and the light receiving part. It has the effect of improving sex.

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram showing an embodiment of the present invention, FIG. 2 is a perspective view showing how each part shown in FIG. 1 is attached, and FIG.
FIG. 4 is a sectional view of the main part of FIG. 2. In the figure, (1)...operator, (2a) or 2
d)...Switch, (3)...Light emitting diode (W
t, air-light converter). (4)...Transmission circuit, (5)...Door, (6)...
・Phototransistor (photoelectric converter), (7)...
・System circuit, (8)... System circuit In the diagrams, the same reference numerals indicate the same or equivalent parts. Agent Makoto Kuzuno - Figure 1 Figure 2 61 Figure 4 Procedural amendment (voluntary) Mr. JT Agency Director-General 1, Indication of case Patent application 1987-77950f2, Name of invention Vehicle control device 3, Person making the amendment Detailed description of the invention in the specification. a Contents of the amendment (1) Mei #I is corrected as shown. Mr. Commissioner of the Japan Patent Office1, Indication of the case, Patent Application No. 57-779502,
Name of the invention Automobile control device 3, Person making the amendment Representative Hitoshi Katayama Part 6, Subject of the amendment Column 7 of the name of the invention in the procedural amendment submitted on June 21, 1980, Contents of the amendment As shown in the attached sheet Written amendment to the above procedure (spontaneous) June 21, 1988 Mr. Commissioner of the Patent Office 1, Indication of the case, Patent Application No. 57-77950 2,
Name of the invention: Automotive control device 3, Detailed description of the invention in the specification of the person making the amendment Representative: Hitoshi Katayama

Claims (1)

[Claims] An operating device consisting of a plurality of switches, an electro-optical converter that converts an electrical signal into an optical signal, and converting the signal from the operating device into a temporally serial signal, and based on this signal, the above-mentioned a transmission circuit that drives the electro-optic converter; a photo-electric converter that receives the optical signal emitted by the electro-optic converter and converts it into an electrical signal; It is composed of a control circuit that outputs two predetermined control signals in response to a signal, and the above-mentioned operating device, electro-optical converter, and transmitting circuit are provided on at least one of the door or the body of the vehicle. , the other side is provided with the above-mentioned opto-electrical converter and a control circuit that receive the optical signal from the converter, and by closing the door, each of the lights of the above-mentioned electro-optic converter and opto-electric converter is installed. The dual power converter is arranged so that the axes substantially coincide with each other, and a shutter is provided on each front surface of the light emitting part of the electro-optic converter and the light receiving part of the photo-electric converter to block light, respectively. A control device for a motor vehicle, comprising means for closing these shutters when the door is open and opening the shutters when the door is closed.