JPH072992Y2 - Vehicle accelerator pedal opening detection device - Google Patents

Description

[Detailed description of the device] [Industrial applications]

The present invention relates to a vehicle accelerator pedal opening detection device,
In particular, it can be applied to various vehicles with different specifications and has high versatility. Since the installation place can be set in a wide range, the degree of freedom in design is improved, and therefore the installation workability is good. For facilitating adjustments for

[Prior art]

For example, the operating state of the internal combustion engine of the vehicle is detected and a signal corresponding to the operating state is transmitted to the operating control device of the vehicle, and the internal combustion engine is output by the operating control device.
In a vehicle equipped with an electronic automatic transmission that operates a vehicle driving device such as a power transmission device, the means for transmitting a signal according to the driving state includes a control lever displacement amount detecting means of a fuel supply device for an internal combustion engine. Further, in addition to the displacement amount detecting means of the control rack of the fuel injection device of the diesel engine and the like, as one of them, there is known an accelerator pedal opening degree detecting means of the vehicle. The detection means includes an electric or electric sensor which is a mechanical-electrical conversion device for converting a mechanical displacement amount into an electric displacement amount, and a potentiometer or the like is known as a concrete example thereof. Regarding a conventional accelerator pedal opening detection device for a vehicle that uses a potentiometer, for example, see Japanese Utility Model Laid-Open No. 61-11.
There are those disclosed in Japanese Patent No. 33133, Japanese Utility Model Publication No. 62-192929, and the like. The conventional technique disclosed in Japanese Utility Model Laid-Open No. 61-1133133 will be described below with reference to FIG. That is, in the prior art shown in FIG. 4, the accelerator pedal 1'is swingably mounted about a shaft (not shown) fixedly provided on the driver's cab floor 5'of the vehicle, Further, the accelerator pedal 1'and a potentiometer 2'which is an accelerator pedal opening detection device are linked by a linkage via an arm 3'which is a bent rod-shaped member, so as to correspond to a driving state of the vehicle. The potentiometer 2'detects the operation amount such as the depression amount and the return amount of the accelerator pedal, that is, the opening amount, and the detected opening signal is transmitted to the operation control device 4'having a microcomputer or the like as a constituent element. ing. The arm 3'is a rod-shaped member and is made of a rigid material such as metal or synthetic resin. The prior art disclosed in Japanese Utility Model Laid-Open No. 62-192929 is also the same as the prior art shown in FIG. 4, and the actual connection means for the accelerator pedal and the accelerator pedal opening detecting means is The linkage using a rod, which is a similar member formed of the same material as the arm 3'disclosed in Japanese Patent Laid-Open No. 61-1133133, is used. In the above-described conventional accelerator pedal opening detection device of this type of vehicle, as a connecting means for connecting the accelerator pedal and the accelerator pedal opening detection means, a metal such as an arm 3 ', a rod or the like or a synthetic resin or the like is used. A component formed of a certain material is used as a linkage. Therefore, the length dimension and the bent shape of the constituent members formed of a rigid material such as the metal such as the arm 3'and the rod or the synthetic resin described above are determined by a certain accelerator pedal stroke (that is, the opening change range). It is unique for a vehicle of specifications and for a potentiometer 2'which is an opening detecting means manufactured by a specific component manufacturer, a rotation sensor unit, or the like, and is a dedicated component as a member. That is, the opening detecting means and the linkage including the arm 3'which is a connecting means of the accelerator pedal and the opening detecting means, and the rod are all dedicated parts, and as a result, the entire opening detecting device of the accelerator pedal of the conventional vehicle as a whole. , For each vehicle specification (for example, cab-over vehicle, bonnet vehicle, large vehicle, small vehicle, etc.), or for each internal combustion engine specification (for example, maximum output, maximum rotational speed, etc.), or for specifications of the opening detection means (for example, ,
Maker, year of manufacture, model, size, etc.), and further, specifications (for example, length size, bent shape, etc.) of the arm 3 ', rod, etc., are constituted by dedicated components. However, conventionally, in the accelerator pedal opening detection device of this type of vehicle, no measures have been taken against the component members being dedicated as described above, and for each vehicle to be applied and each internal combustion engine, Accelerator pedal opening detection means such as a wide variety of potentiometers and connecting means such as rods and arms are indispensable, it is not versatile as a device, it is a small volume production of various products, production cost is high and production management is complicated, The mounting location is specified and limited by the size and shape of the accelerator pedal opening detection means, and there is no design freedom, and the mounting workability becomes poor. In addition, the shape of the connecting means such as rods and arms. It has a problem that the dimensions are fixed and it is difficult to make adjustments for operation after the device is attached. It is generally known that the amount of rotation of the accelerator pedal is transmitted by a wire, which is disclosed in, for example, Japanese Utility Model Laid-Open No. 165635/1985. However, in such a known technique, when the accelerator pedal opening detection means is provided, the adjustment work is troublesome as described above. [Problems to be Solved by the Invention] Accordingly, an object of the present invention is applicable to a wide variety of vehicles and internal combustion engines having different uses and to accelerator pedal opening detection means, has high versatility, and has a wide range of installation locations. (EN) Provided is an accelerator pedal opening detection device for a vehicle, which can be set, the degree of freedom in design is improved, the mounting workability is good, and further, adjustment for operation after mounting the device can be easily performed. Especially. [Means for Solving the Problems] According to the present invention, the opening of the accelerator pedal of the vehicle, which detects the operating state of the internal combustion engine of the vehicle and transmits a signal corresponding to the operating state to the operation control device of the vehicle. In the degree detecting device, an opening degree detecting means having a rotating shaft extending in a vertical direction for detecting the opening degree of the accelerator pedal is installed near the accelerator pedal, and one end of a detecting means driving member for rotating the rotating shaft. Is attached to the rotary shaft, one end of the linear member is connected to the accelerator pedal, and the other end of the linear member is connected to the other position of the detection means driving member, and the driving member is biased and driven. Urging means is attached to the other end of the detection means drive member, the linear member connects between the detection means drive member and the accelerator pedal, and the linear member is a horizontal rotary shaft. Is guided by a pulley having a horizontal axis and extends horizontally between the pulley and the detecting means driving member, so that the operation amount of the accelerator pedal is transmitted to the opening detecting means via the linear member and the driving member. Is configured. [Description of Action and Effect] Therefore, when the accelerator pedal is stepped on, the linear member is loosened and pulled by the biasing member to rotate the rotating shaft of the opening degree detecting means in one direction. Then, when the accelerator pedal is returned, the linear member is pulled by the returning force of the accelerator pedal, and the opening degree detecting means rotates the rotating shaft in the opposite direction. In this way, the opening degree of the accelerator pedal is detected by the opening degree detecting means. The accelerator pedal opening degree vibration detected by the accelerator pedal opening degree detecting means is constituted by a microcomputer or the like via the signal transmitting means. It is transmitted to the operation control device. During this operation, the detection means driving member makes an arc operation,
Since both the linear member and the urging member attached to the other end of the detecting means driving member are flexible, they can be operated without difficulty. Then, if the attachment points of the accelerator pedal and the linear member are changed, the detection amount of the detection means changes. Therefore, adjustment is easy, and a versatile opening detection device can be provided without using a dedicated component. Further, the opening degree detecting means is installed near the accelerator pedal, but the rotation axis thereof is normally arranged in the vertical direction. Therefore, by attaching a pulley having a horizontal rotation shaft, the vertical displacement of the accelerator pedal can be appropriately transmitted to the rotation of the detecting means, and in particular, it is provided in the lower portion of the accelerator pedal to effectively utilize the dead space. You can

【Example】

An embodiment of the present invention will be described below. FIGS. 1, 2, and 3 are views showing an embodiment of the present invention, FIG. 1 is a side view, FIG. 2 is a front view, and FIG. 3 is a perspective view. In FIG. 1, an accelerator pedal 1 of a vehicle is swingably supported by a shaft 12 mounted on a floor 5 of a driver's cab through one end thereof. The stay 14 attached to the other end of the accelerator pedal is engaged with a connecting portion 131 of a fuel supply device driving rod 13 connected to a linkage for driving a fuel supply device (not shown). In this way, the accelerator pedal 1 operates from the accelerator opening fully closed position shown by the solid line to the accelerator opening fully open position shown by the chain double-dashed line. A rotation sensor 2, which is an accelerator pedal opening detection means, is installed on the flow 5, which is the lower back side of the accelerator pedal 1, in the form described in detail in the description of FIG. 3 below. On the other hand, a pin that is an engaging member is provided on a side portion of the accelerator pedal 1.
11 is fixed, and one end of a wire 3, which is a bendable linear member, is hooked on this pin 11. This wire is wound around a pulley groove of a pulley 8 which is rotatably mounted on a bracket 51 fixed to the floor and fixedly mounted on a bracket 51 having a horizontal rotary shaft. In this embodiment, the accelerator pedal 1 and the rotation sensor 2
Although the pulley 8 is arranged as described above due to the positional relationship between the wire 3 and the wire 3 and the direction of the wire 3 is changed, if the positional relationship does not require a change in the direction of the wire 3, the pulley may not be provided. Of course. Next, FIG. 3 which is a perspective view of the present embodiment will be described. The wire 3 wound around the above-mentioned pulley groove is extended by changing the erection direction by the pulley 8 and one end locked to the pin 11 on the side portion of the accelerator pedal 1 shown by the chain double-dashed line. The other end on the side opposite to the portion is locked in a locking hole 71 at one end of a lever 7 which is a driving member for opening degree detection means and is axially stopped by a rotation shaft extending in the vertical direction of the rotation sensor 2. That is, the wire 3 is stretched along the pulley 8 between the accelerator pedal 1 and the lever 7 shown by the chain double-dashed line. Further, one end of a coil spring 6, which is a biasing means for operating the rotation sensor 2 by an amount corresponding to the depression amount of the accelerator pedal, is locked in the locking hole 71 of the lever 7, and the other of the coil spring 6 is locked. The end is the bracket 51
The coil spring 6 is mounted so as to be hooked on a pin 52 provided on the lever 52, that is, the coil spring 6 is stretched between the lever 7 and the pin 52. 1 is stretched between the lever 1 of the rotation sensor 2 and the lever 7 of the rotation sensor 2. Further, the rotation sensor 2 is fixed to the boss portion 53 of the bracket 51 fixed on the floor 5 on the lower rear side of the accelerator pedal 1 with a bolt or screw 21 as a fastening member via the flange portion thereof. The rotation sensor can be attached to the driver's cab in the same manner as in the present embodiment with respect to its part, and it may be a cab panel other than the floor depending on the floor shape and the state of interference with other parts. However, it is needless to say that it is only necessary to be in the vicinity of the accelerator pedal and it is not limited to only the lower back side of the accelerator pedal even on the floor. Also, it goes without saying that the mounting means can be directly mounted on the floor without using a bracket, or can be pressure-bonded and fixed with a tape such as a double-sided tape which is a fastening member other than the above-mentioned bolts or screws. Further, the method of constructing the above-mentioned coil spring is not limited to the method using the bracket pin and the lever engagement hole as in the present embodiment. For example, the method using the bracket pin and the lever pin, the bracket engagement hole As a matter of course, other conventionally known erection methods and means such as a method using an engagement hole of a lever and a method using an engagement hole of a bracket and a pin of a lever can be used. Next, FIG. 2 which is a front view of the present invention will be described. The fully closed position of the lever 7 axially stopped by the rotation sensor 2 is shown by a solid line corresponding to the fully closed position of the accelerator pedal. Further, the fully opened position of the lever 7 is indicated by a chain double-dashed line corresponding to the fully opened position of the accelerator pedal. Further, an operation control device 4 including a microcomputer or the like as a component is connected to the rotation sensor via a signal transmission lead wire 41 in order to receive an accelerator pedal opening signal detected by the rotation sensor 2. Next, the operation of this embodiment will be described with reference to FIGS. 1, 2, and 3. According to the above configuration, when driving the vehicle, the accelerator pedal 1 and the rotation sensor 2 operate as follows. When the accelerator pedal 1 is operated, for example, when the accelerator pedal 1 is depressed from the accelerator pedal fully closed position shown by the solid line in FIG. 1, the accelerator pedal 1 is fixed to the side portion of the accelerator pedal 1 as shown in FIG. One end of the lever 11 is hooked on the pin 11 and the intermediate portion is wound around the pulley groove of the pulley 8 so that the lever 7 is locked by the rotation sensor 2.
The other end is locked to 71, and the coil spring 6 is installed in a state in which a pulling force acts between the lever 7 and the pin 52 fixed on the bracket 51. The wire 3 stretched around the wire tends to change from the pulled state before the accelerator pedal 1 is depressed to the relaxed state. Then, the urging force of the coil spring 6 for urging and driving the lever 7 operates the lever 7 by an amount corresponding to an attempt to relax the wire 3, that is, an amount corresponding to the depression amount of the accelerator pedal. In this embodiment, the operation surface of the pin 11 fixed to the side surface of the accelerator pedal 1 and the operation surface of the lever 7 are not the same surface, but the tension direction of the wire 3 is changed by using the pulley 8. Therefore, the operation of the lever 7 is performed only by the operation force in the operation surface of the lever 7. As a result, the rotation sensor 2 to which the lever 7 is attached operates, the depression amount of the accelerator pedal is transmitted to the rotation sensor 2, and the opening degree of the accelerator pedal is detected. Further, the accelerator pedal opening signal detected by the rotation sensor 2 is transmitted to the operation control device 4 via a signal transmission lead wire 41 that connects the rotation sensor 2 and the operation control device 4 including a microcomputer and the like as components. , Is used as a signal indicating the operating condition of the internal combustion engine of the vehicle.

[Effect of device]

As described above, the present invention has the following excellent effects. (I) By setting the attachment positions of the accelerator pedal and the linear member correctly, there is versatility and no dedicated parts are required. (Ii) Since the linear member is guided by the pulley supported by the horizontal rotating shaft, the movement of the accelerator pedal can be smoothly transmitted to the drive member of the opening degree detecting means having the vertical rotating shaft. (Iii) The opening degree detecting means can be installed near the accelerator pedal, for example, below the accelerator pedal, which is advantageous in terms of space. (Iv) Since the linear member and the urging means are provided at the end of the detecting means driving member which makes an arc motion, the operation can be performed without difficulty.

[Brief description of drawings]

FIG. 1 is a side view of an embodiment of the present invention, FIG. 2 is a front view of FIG. 1, FIG. 3 is a perspective view of FIG. 1 and FIG. 2, and FIG. is there. 1, 1 '... Accelerator pedal 2, 2' ... Rotation sensor 3 ... Wire 4, 4 '... Operation control device 5, 5' ... Floor 6 ... Spring 7 ... Lever 8 ... Pulley

Claims (1)

[Scope of utility model registration request] 1. An accelerator pedal opening detection device for a vehicle, which detects an operating state of an internal combustion engine of a vehicle and transmits a signal according to the operating state to an operation control device for the vehicle, in the vicinity of the accelerator pedal. An opening degree detecting means having a rotating shaft extending in the vertical direction is installed to detect the opening degree of the accelerator pedal, and one end of a detecting means driving member is attached to the rotating shaft to rotate the rotating shaft. One end of the member is connected to the accelerator pedal, and the other end of the linear member is connected to the other position of the detection means driving member,
Further, an urging means for urging and driving the drive member is attached to the other end of the detection means drive member, and the linear member connects between the detection means drive member and the accelerator pedal, and The member is guided by a pulley having a rotating shaft in the horizontal direction and extends in the horizontal direction between the pulley and the detecting means driving member, and the operation amount of the accelerator pedal is opened via the linear member and the driving member. An accelerator pedal opening detection device for a vehicle, which is configured to be transmitted to a degree detection means.