JPS61244839A - Throttle valve operating mechanism - Google Patents

Abstract

PURPOSE:to permit the economic and sporty traveling by installing an opening- degree varying means midway onto a wire connecting an accelerating pedal and a throttle cam and varying the opening degree of the throttle valve in two ways for the pedal stroke. CONSTITUTION:In the state where a selecting switch 16 is turned-OFF in the ordinary traveling, and a rod 12 is projected through the nonconduction state of an electromagnetic solenoid 11, a ring 9 is engaged with one slider 7a in a switching means 4. Then, a wire 15c connected with an accelerating pedal 1 is connected to a throttle cam 6a through a slider 7a and a wire 15a, and the opening degree of a throttle valve 2 is reduced by a profile 5a, and the economic traveling is permitted. When the selector switch 16 is turned-ON when an accelerator is in opened state, the ring 9 is engaged with the other slider 7b, and the wire 15c is connected with the throttle cam 6b, and the characteristic of large variation of opening degree can be obtained by a profile 5b.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a throttle valve operation mechanism that opens and closes a float carburetor or a throttle valve of a throttle body in a vehicle engine according to how much the accelerator pedal is pressed. Concerning what has been done.

[Conventional technology]

Generally, in a vehicle engine, an accelerator pedal and a throttle valve are mechanically connected by a wire or the like, and the throttle valve opens and closes depending on how much the pedal is depressed. Conventionally, in the above-mentioned throttle valve operating mechanism, there is a prior art technique for changing the opening degree of the throttle valve, for example, as disclosed in Japanese Utility Model Application Laid-Open No. 57-120729. here,
It has been proposed to control υj to change the throttle valve opening ratio as the accelerator pedal is depressed more.

[Problems to be solved by the invention]

By the way, although the above-mentioned prior art changes the degree of opening of the throttle valve with respect to the pedal stroke,
There is only one type of characteristic, and the overall characteristic cannot be changed. When the vehicle is traveling, there are cases where the vehicle travels lightly on a flat road, and cases where the vehicle travels in a sporty manner with sudden acceleration, especially on mountain and valley areas. Therefore, it is desirable to adapt engine revving and the like to such differences in driving conditions without changing driving operations, particularly accelerator work. The present invention was created in view of these points, and provides a throttle valve operating mechanism that enables economical and sporty driving by making it possible to change the opening degree of the throttle valve in response to the stroke of the accelerator pedal. is intended to provide.

[Means to solve the problem]

In order to achieve the above object, the present invention provides opening changing means consisting of two types of throttle cams with different profiles in the middle of the wire from the accelerator pedal, and adjusts the opening degree of the throttle valve relative to the pedal stroke to a normal economy standard. This allows for a sporty change with a larger opening change. The opening degree changing means is provided with a switching means, and is configured to select one of them by operating a switch.

[For production]

Based on the above configuration, the present invention can arbitrarily obtain an operating characteristic in which the change in throttle valve opening is small and an operating characteristic in which the change is large by switch operation. Thus, in the present invention, it is possible to perform economy driving and sporty driving by changing the operating characteristics without changing the accelerator work.

【Example】

Embodiments of the present invention will be described below with reference to FIGS. 1 and 2. In the first diagram, the first embodiment of the present invention will be described. Reference numeral 1 is an accelerator pedal, 2 is a throttle valve, 3 is an opening degree changing means, and 4 is a switching means. The opening degree changing means 3 includes a throttle cam 6a having a profile 5a with a small change in opening degree in the throttle valve 2, and a throttle cam 6b having a profile 5b with a large change in opening degree.
and are attached. The switching means 4 includes two L-shaped sliders 7a. 1b is provided so as to be movable while being guided by rails 8a and 8b, and a ring 9 is fitted to the sliders 7a and 7b so as to engage with one of the sliders 7a and 7b via an interlock 10. Further, the protrusion 13 of the rod 12 from the electromagnetic solenoid 11 fits into @14 of the ring 9 and guides the movement of the ring 9, and when the accelerator is released, the slider 7a, 7
The ring 9 can be switched only at the position where b matches. The wire 15c from the accelerator pedal 1 is connected to the ring 9, and the wire 15a from one slider 1a is connected to the profile 5a of the throttle cam 6a.
The wire 15b from the other slider 1b is hung on the profile 5b of the throttle cam 6b. In addition, the electromagnetic solenoid 11 changes the rod 1 depending on whether it is energized or not.
The changeover switch 16.2 is used to move the switch 16. It is connected to the battery 18 side via the ignition switch 17. With this configuration, when the changeover switch 16 is turned off during normal driving and the electromagnetic solenoid 11 is de-energized and the Orad 12 is protruded, the ring 9 in the changeover means 4 engages with one slider 1a. do. Therefore, the wire 15c from the accelerator pedal 1 is connected to the slider 7a,
Since it is connected to the throttle cam 6a via the wire 15a, the degree of opening of the throttle valve 2 relative to the pedal stroke becomes smaller due to the profile 5a.
It will be suitable for economy driving. Next, when the changeover switch 16 is turned on when the accelerator is released, the rod 12 is attracted by the energization of the electromagnetic solenoid 11, and the ring 9 comes to engage with the other slider 7b. Therefore, the wire 15c from the accelerator pedal 1 is connected to the throttle cam 6b via the slider 7b and the wire 15b, so that the profile 5b has a characteristic of large opening changes, and even if the accelerator work is the same, the engine will not rev up. It will be better and more suitable for sporty driving. According to the second embodiment of the present invention shown in FIG.
is attached, and a profile 5 is provided within this plate 22 so as to be displaceable in the radial direction. In the switching means 4, a cam 23 from a solenoid 11 expands or contracts a profile 5, a wire 15a from the accelerator pedal 1 is connected to the profile 5, and a wire 15b is connected to a guide 20 and a throttle cam (not shown). It is hung. In addition, the accelerator release switch 24 and the changeover switch 1G are
The inverter 27 from the accelerator release switch 24 and changeover switch 16 is connected to the reset side of the FF 26 via an AND gate 28. is connected to the solenoid 11 via the transistor 29. With this configuration, when the accelerator release switch 24 is turned on when the accelerator is released, when the changeover switch 16 is turned off, the AND gate 28 is FF at output
When the transistor 26 is reset and its output is set to L, the transistor 29 is turned off and the solenoid 11 is de-energized. Therefore, the cam 23 starts to attract and contract the profile 5, and therefore, the degree of opening of the throttle valve 2 becomes small relative to the stroke of the accelerator pedal 1. On the other hand, when the changeover switch 16 is turned on under the above conditions, the FF 26 is set by the output of the AND gate 25, and its output becomes H. Therefore, the solenoid 11 causes the cam 23 to protrude when energized, so that the profile 5 expands and has a characteristic of large opening change. In this way, in this embodiment as well, the mode is switched when the accelerator is released, making it suitable for economical and sporty driving.

【Effect of the invention】

As described above, according to the present invention, the 1F11 degree changing means is provided in the middle of the wire connecting the accelerator pedal and the throttle cam, and the opening degree with respect to the pedal stroke can be changed into two types, so that the driving condition can be changed. Despite the differences, it is now possible to perform economical and sporty driving with the same accelerator work, improving driving performance. Also, young people, one year older, and men. Women can choose their preferred performance.

[Brief explanation of drawings]

Fig. 1 (f) is an overall configuration diagram showing an embodiment of the mechanism according to the present invention, @ is a perspective view showing the switching means, Fig. 2 (f), (
B) is a configuration diagram showing another embodiment. 1...Accelerator pedal, 2...Throttle valve, 3...
...Opening degree changing means, 4...Switching means, 11...Electromagnetic solenoid, 15a, 15b, 15c...Accelerator wire, 16...Switching switch. Patent applicant: Fuji Heavy Industries Co., Ltd. Agent: Patent attorney: Makoto Kobashi Ukiyo Patent attorney: Susumu Murai Figure 2 (a)

Claims (1)

[Claims] In a throttle valve operation mechanism that opens and closes a throttle valve according to how much the accelerator pedal is depressed, an opening change means is provided in the middle of the accelerator wire from the accelerator pedal to change the opening degree of the throttle valve in response to the pedal stroke. , a throttle valve operation mechanism in which the opening degree changing means is provided with a switching means for selecting either one by operating a changeover switch;