JPS58143142A - Device for constant speed cruising - Google Patents

Abstract

PURPOSE:To aim at simplifying the structure of a device for constant speed cruising, by enabling a carburettor throttle control cable connected to an accelerator and an engine by means of an actuator to be directly controlled. CONSTITUTION:A cable branch-off device 8 is provided in the intermediate part of a carburettor throttle control cable 2 connected between an engine 1 and an accelerator 5. The cable on the accelerator side of this branch-off device 8 is branched off into two cables one of which is connected to an actuator 5 and the other one of which is connected to the accelerator 3. A drive member 14 moves a driven member 12 in the direction A through an engaging piece 14a when the actuator 5 pulls a cable 4' for carrying out constant speed cruising, so that a cable 2a is retracted into a body casing 11. Accordingly, the vehicle is driven under constant speed cruising by the actuator 5 even if the accelerator 3 is not actuated.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a constant speed cruising system that allows an automobile to maintain a constant speed through operation by the driver.

In recent years, there has been an increase in the number of roads where cars can maintain a constant speed, such as expressways and smooth-flowing trunk roads. A constant-speed cruising device has been developed that frees the user from the troublesome accelerator operation required to maintain a constant vehicle speed and allows the vehicle to drive at a constant speed according to the flow of the road.

As shown in Fig. 1, this conventional constant speed cruising system for automobiles has a carburetor throttle control cable 2 connected to -i for controlling the l[M rotation speed of the engine 1, and an accelerator pedal 6a at the other end. The accelerator 6 was connected to the actuator 5 via a cable 4 on the rectal side of the rotation support portion 6b. The actuator 5 was controlled by the microcomputer 7 to drive the accelerator 6 so that the vehicle speed set by the driver matched the calibration value of the vehicle speed sensor 6.

However, such conventional constant-speed cruise systems require cable routing or a link mechanism between the actuator and the accelerator, and the mechanism is complicated because the cables and links must be long. There is a drawback.

Furthermore, the conventional method in which the accelerator is directly driven by an actuator has the drawback that it is disadvantageous in terms of layout because it is not possible to secure sufficient space around the accelerator.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to eliminate the drawbacks of the conventional constant speed cruise device, and to provide an excellent system that allows the actuator to directly drive the carburetor throttle control cable that connects the accelerator and the engine, instead of using an actuator to drive the accelerator. The purpose of the present invention is to provide a constant speed cruising device.

The constant speed cruising device of the present invention which achieves the above object has 1) a human-powered 1-output device installed in the middle of a control cable that connects the accelerator and throttle valve of an automobile, which performs the same output operation in response to any input operation; A cable branching device is provided, the cable on the output side of this device is connected to the throttle 1 (lube), one of the cables on the input side is connected to the accelerator, and the other is connected to the actuator, and this actuator is When the vehicle turns on the constant speed cruising switch, the vehicle is controlled by an electronic control unit (microcomputer) so that the vehicle speed set by the vehicle number matches the detected value of the vehicle speed sensor.

The present invention will be described in detail below using the drawings.

・Figure 2 is a block diagram showing a schematic configuration of the constant speed cruise device of the present invention. In the present invention, a cable branching device ffi 8 is provided in the middle of the carburetor throttle control cable 2 that connects the engine 1 and the accelerator 6, and the cable on the accelerator side of this cable branching device 8 is branched into two, one of which is the same as before. One is connected to the accelerator 6, and the other is connected to the actuator 5. This cable branching device 8 will be explained in detail later using practical examples 1 and 2, but a two-man power one-output device that performs the output operation in the same way in response to the operation of either the accelerator 6 or the actuator 5 is used. use.

Therefore, in the present invention, the throttle control cable 2 is directly driven by the actuator 5, which acts to maintain the vehicle speed, and no force other than the pedal effort is applied to the accelerator 6. Further, the cable branching device 8 can be provided anywhere along the throttle control cable 2.

FIG. 3 shows a first embodiment 10 of the cable branching device 8. As shown in FIG. An engaging portion 12 is provided inside the main body case 11.
A driven member 12 equipped with a drive member 12 and two drive members 1!1.14 each equipped with engagement pieces 13a and 14a that engage with the engagement portion 12a of this driven member 12 are built-in. . A throttle control cable 2a connected to the throttle valve 9 is connected to the driven member 12. Further, a throttle control cable 2b connected to the accelerator 3 is connected to one drive member 13,
A cable 4' connected to the actuator 5 is connected to the other drive member 14.

Furthermore, in the first embodiment, the driven member 12 has its engaging portion 1
Spring 12b provided between 2a and the inner wall of the main body case
Yes, always use throttle control cable 2a.
It is pressed and fastened to the end reference position within the main body case 11 in the direction of pushing out the main body case 11 . In addition, the drive unit 1111
4 is 16b.

14b is each engagement piece j3a, 14a and main body case 11
These springs 13b,
1.4b is fully extended or in contact with a stopper (not shown) inside the case 11, the engagement piece 16a.

14a remains in a position substantially close to the engaging portion 12a of the driven member 12.

Cable branching system of the present invention! The configuration of the first embodiment 10 is as described above. For example, when performing constant speed cruising operation, if the actuator 5 pulls the cable 4' as shown in FIG. The driving member 14 connected to the drive member 14 moves the driven member 12 from the reference position in the direction of arrow A via the engaging piece 14a, and the throttle control cable 2a connected to the driven member 12 moves to the main body.
It operates to draw into the r-space 11. Therefore, the automobile can be driven at a constant speed by the actuator 5 without operating the accelerator 6. Also, when the constant speed cruising device is released and the vehicle is driven using only the accelerator 6, the operating force of the throttle control cable 2b is applied to the drive member 16. It is transmitted to the throttle control cable 2a via the driven member 12, and the constant speed cruise device is not involved at all.

FIG. 5 shows the configuration of a second embodiment 20 of the constant speed cruise device of the present invention, FIG. 6 is a cross-sectional view taken along the line B-B in FIG. 5, and FIG. 7 is the main body of FIG. 5. 0 is an assembled perspective view of the main components inside the case 21. In this embodiment, a shaft 21a is provided protruding from the center of the flat part 21b of the main case 21 made of a substantially L-shaped plate, and three shafts are provided at the bent part 21c. 21d of guide holes with slits,
21e and 21f are provided. and said shaft 2
1a, drive members 23. Driven member 22. The drive members 24 are rotatably penetrated into each member, and are locked by locking pieces 21g so as not to come off.

The shapes and positional relationships between the driving members 25 and 24 and the driven member 22 are as shown in FIG. That is, the central driven member 22 has a partially cut-out disk shape with a through hole 22e in the center, and a groove 22f for guiding a cable 22e for rotating the driven member 22 on the outer periphery and a groove 22f provided at the end of the cable. There is a locking hole 22d for locking the pin 60, and drive members 25 located on both sides are provided at required positions on both sides of the disk.
, 24 are provided at the same position. The engagement surface 22'g of the engagement protrusion 22a is a flat surface facing the center of the disk, and in this embodiment, unnecessary disk portions other than the portion where the groove 22f and the cable 22e engage are inserted through the The area around the hole 22e is cut out to avoid waste. The shape of the cutout part is not limited to the shape of this embodiment, but is cape/l/''22(!
Any shape may be used as long as it can be wound around the driven member 22 by rotation thereof. The driving members 26 and 24, which are attached to sandwich the driven member 22 described above from both sides, have a through hole 2 in the center like the driven member 22.
5e, 24e, which has a partially cutout disc shape, and has a groove 26f on the outer periphery that guides cables 23c, 24c for rotating these.

24f and locking holes 23d and 24d for locking the pin 60 provided at the tip of the cable are provided, but in this embodiment, the grooves 23f and 24f and the cables 23c and 24e are not connected to each other. Since most of the unnecessary disk portions are cutouts except for the areas around the through holes 23e and 24e, they are actually fan-shaped. Engagement surfaces 25a' and 24a' that partially overlap the engagement surface 22a' of the engagement protrusion 22a provided on the engagement protrusion 22.
Engagement protrusions 26a, 24a having
Alternatively, the force is transmitted to the engagement surface 22a' by 24a', and the driven member 22 is rotated in the G direction. Furthermore, circumferential grooves 26g + 24g are formed on opposing surfaces around the through holes 26e and 24e of the drive members 23 and 24,
A return spring 25 is located in the central cylindrical part surrounded by these.
b, 24b is wound around the engaging surface 23a' of the driving members 23, 24 by fixing one end thereof to the driving member 26.degree. 24 and the other end to the bent portion 21c of the main body case 21.

24a' urges the driven member 22 in a direction away from the engagement surface 22a'. The driving members 23 and 24 are positioned in the same direction by a stopper (not shown) provided on the main body case 1 or a stopper of the accelerator pedal 2 or actuator 5, which will be described later.

The drive member 23 is connected to the accelerator 6 of the engine via a cable 23c, and the drive member 24 is connected to a rod 5c connected to the diaphragm 5a of the vacuum actuator 5 of the constant speed cruise system via the cable 24c. has been done. Actuator 5 is diaphragm 5a
The diaphragm 5 is divided into two chambers, and one chamber has the same diaphragm 5.
A spring 5d is inserted to bias a in the wire attachment direction, and the same chamber is connected to the engine vacuum via an electromagnetic valve 5b that is opened and closed by an auto cruising (constant speed cruising) switch (not shown), and the other chamber is connected to the atmosphere. is connected to. During normal driving when the switch is not activated, the valve 5b closes the passage to the engine vacuum and communicates the chamber with the atmosphere, and when the switch is activated, the valve 5b connects the chamber and the engine vacuum, and the spring 5d
The cable 24c is configured to be pulled against the cable 24c.

In the second embodiment of the present invention configured in this way, when the accelerator pedal 6a, which is a control element, is depressed in the direction of arrow C, the cable 25c is pulled in the direction of arrow F, and the drive member 26 moves in the direction of arrow F. Rotate like E. Then, this rotational force is transmitted to the driven member 22 by the engaging protrusions 23a and 22a, and the driven member 22 rotates as indicated by arrow G. This rotation causes the cable 22c to be pulled in the direction of arrow H, and the throttle valve 9, which is a controlled element, rotates via the arm 9a connected to the cable 22c. At this time, the other drive members 24 are held at the reference position and are not affected in any way. Similarly, when the diaphragm 5a of the vacuum actuator 5, which is another control element, is pulled as shown by the arrow by the action of the engine vacuum due to the operation of the electromagnetic valve 5b by operating the constant speed cruise switch (not shown), cable 24
c is pulled as shown by arrow F, and the drive member 24 rotates as shown by arrow E. Then, the engagement protrusion 24a transmits this rotational force to the engagement protrusion 22a, so the driven member 22 rotates in the direction of arrow G, and the throttle valve 9, which is the controlled element, rotates in the same manner as described above. During this operation, the other drive members 26 are held at their reference positions.

As described above, in the constant speed cruising device of the present invention, when the driver uses this device to perform constant speed cruising, the vehicle speed set by the driver and the detected value of the vehicle speed sensor 6 are determined as shown in FIG. The microcomputer 7 controls the actuator 5 so that the numbers match, and the actuator 5 drives the throttle control cable via the cable branching device 8 to control the rotation of the engine 1.

As explained above, the constant speed cruising device of the present invention has a two-man power single-output system installed in the middle of the control cable that communicates with the accelerator and throttle valve of the automobile, which performs the same output operation in response to either input operation. A cable branching device is provided, the cable on the output side of this device is connected to the throttle valve, one of the cables on the input side is connected to the accelerator, and the other side is connected to the actuator, and
This actuator is configured to be controlled by a microcomputer so that when the driver turns on the constant speed cruise switch, the vehicle speed set by the driver matches the detected value of the vehicle speed sensor. This eliminates the need to arrange long cables, links, etc. for driving the accelerator near the accelerator where there is no space, and has the effect of simplifying the structure of the constant speed cruise device.

Furthermore, since the cable branching device of the present invention can be installed anywhere along the throttle control cable, there is an advantage that there is a degree of freedom in layout.

[Brief explanation of the drawing]

Figure 1 is an explanatory diagram showing the configuration of a conventional constant speed cruise device, Figure 2
The figure is a block diagram showing the configuration of the constant speed cruising device of the present invention, FIG. 3 is a sectional view showing the first embodiment of the cable branching device shown in FIG. 2, and FIG. 4 is the operating state of the device shown in FIG. 3. 5 is a configuration explanatory diagram showing a second embodiment of the cable branching device shown in FIG. 2, FIG. 6 is a sectional view taken along line B-B in FIG. 5, and FIG. FIG. 2 is an assembled perspective view showing the configuration of main components inside the main body case. 1...Engine, 2...Throttle control cable, 6...Accelerator, 4.4'...Cable,
5... Actuator, 6... Vehicle speed sensor, 7...
・Microcomputer, 8...cable branching device,
9... Throttle valve, 11.21... Main body case, 12゜22... Driven member, 12a... Engaging portion, 16.14, 25゜24... Driving member, 15a
, 14a... engaging piece, 22a, πa. 24a... Engaging protrusion.

Claims (1)

[Claims] A two-person power one-output cable branching device is installed in the middle of the vehicle throttle cable that connects the accelerator and throttle valve of a car, and the cable branching device is powered by two people and has one output, which performs the same exit operation in response to either input operation. The cable is connected to the throttle valve, one of the cables on the input side is connected to the accelerator, and the other is connected to the actuator, and when the driver turns on the constant speed cruise switch, the actuator 1. A constant speed cruising device characterized in that the constant speed cruising device is configured to be controlled by an electronic control device so that a set vehicle speed matches a detected value of a vehicle speed center.