KR19980051355A - Variable Throttle Valves for Vehicle Engines - Google Patents

Abstract

The present invention relates to a variable throttle valve of a vehicle engine. In the conventional throttle valve, the opening angles of the opening and closing discs are increased in direct proportion to each other in response to the stepping force supplied to the accelerator pedal as described above. If the accelerator pedal is suddenly stepped on, the opening degree of the opening and closing disc of the throttle valve is suddenly increased, so that the mixer is broken and the engine output is deteriorated, and the exhaust gas is increased.

The present invention uses a tapered drive roller 38 and a tapered variable roller 40 which are different in diameter and inclined sides as shown in FIGS. 3 to 4, but control of the control unit 32 according to the vehicle speed among the taper rollers. Opening and closing disc by the transfer roller 48 and the wire 16 ′, by adjusting the hydraulic pressure to advance the tapered variable roller 40 back and forth in the tapered drive roller to change the amount of rotation and transmit the rotational force of the tapered variable roller. The degree of opening of the opening angle is non-linearly and variably proportional to the present invention. The present invention has an effect of making it suitable for high power and low fuel consumption and reducing exhaust gas during sudden start or overload.

Description

Variable Throttle Valves for Vehicle Engines

The present invention relates to a variable throttle valve of a vehicle engine. More specifically, the opening degree of the throttle valve is non-linearly proportional to the increase in the stepping force supplied to the accelerator pedal. It relates to a variable throttle valve of a vehicle engine to prevent the reduction of.

In general, the throttle body 10 of the vehicle is a device for adjusting the amount of air sucked into the engine in the gasoline injection, as shown in Figs. 1 and 2, including a throttle valve 14 that interlocks with the accelerator pedal 12, The inside is comprised of the throttle position sensor which detects the opening degree of the throttle dash port valve which controls the rapid movement of the throttle valve 14, the throttle position switch, and the dash port which cuts off fuel temporarily at the time of deceleration.

Among the components provided in the throttle body 10, the throttle valve 14 includes a rotating shaft 22 and a disc 24 for opening and closing the suction port 17 mounted on the rotating shaft 22. It consists of a throttle body linkage 18 and a wire 16 for transmitting the pedal force of the accelerator pedal 12 to the throttle body linkage 18 to interlock the pivot shaft 22 on the side of the disc 24. will be.

In the conventional throttle valve 14, when the driver presses the accelerator pedal 12, the throttle body linkage 18 rotates according to the displacement of the wire 16, and the opening and closing disc 24 attached to the rotation shaft 22 is rotated. ) Is rotated, so it is stir at the proper angle for the step.

Accordingly, a large amount of suction air is introduced into the suction inlet 17 opened according to the degree of the disc 24 for opening and closing, thereby accelerating. When the pedal force is removed from the accelerator pedal 12, the restoring force of the return spring 20 is increased. As the accelerator pedal 12 is returned to its original position, the throttle body linkage 18 and the opening / closing disc 24 having elastic restoring force are also returned to the original position so that the valve is closed again, thereby reducing the speed.

In addition, the suction air is supplied to the combustion chamber along the bypass hole 26 when the throttle valve 14 is completely closed.

Figure 2 (b) is a graph showing the relationship between the opening angle of the disc for opening and closing of the conventional throttle valve and the power of the conventional throttle valve, the conventional throttle valve is opened and closed in accordance with the step (F) supplied to the accelerator pedal 12 of the operation The opening angle θ of the disk 24 is increased in proportion to each other, which is because the accelerator 16 and the wire 16 connecting the throttle body linkage 18 are not variable elastic. This is because the pedal force F is transmitted to the opening and closing disc 24 as it is.

Therefore, the driver should be familiar with the driving habit so that the correlation between the opening angle θ of the accelerator pedal 12 and the opening / closing disc 24 is familiar. Care must be taken.

However, in the conventional throttle valve 14, as described above, the opening angles θ of the opening / closing disc 24 are increased in direct proportion to each other according to the stepping force F supplied to the accelerator pedal 12. If the accelerator pedal 12 is suddenly stepped on during sudden start or overload, the opening degree of the opening and closing disc 24 of the throttle valve 14 suddenly increases, so that the mixer becomes thinner and the engine output decreases, and the exhaust gas increases. There was a problem.

Therefore, the present invention has been devised to solve such a problem in the related art, the tapered drive roller operated by the wire of the accelerator pedal, and the left and right movement to control the electro-hydraulic regulating valve of the control unit according to the vehicle speed, interlocked with the tapered drive roller. The variable throttle valve of the vehicle engine that reduces exhaust gas and increases the engine output by increasing the opening angle of the disc for opening and closing the throttle valve to a variable nonlinearity when the driver's sudden acceleration pedal effort increases. The purpose of the invention is to provide.

The present invention for realizing the above object is coupled to the tapered drive roller and the tapered drive roller to be rotated by the tension roller is wound on one side of the wire of the accelerator pedal when the stepping force is supplied or the signal of the vehicle speed sensor The control unit adjusts the opening / closing amount of the pendulum hydraulic control valve according to the vehicle speed, so that the hydraulic pressure is supplied to the hydraulic tamper, while the piston rod is moved back and forth by the hydraulic pressure supplied to the hydraulic damper, and the rotation amount is changed, and the taper At the bottom of the variable roller is a structure in which a transmission roller for transferring a variable amount of rotation to the throttle body linkage of the throttle valve is wired.

Therefore, the present invention uses a tapered drive roller and a tapered variable roller having different diameters and inclined sides, and the hydraulic pressure controlled by the control of the control unit according to the vehicle speed among the tapered rollers is moved forward and backward in the tapered drive roller. The degree of rotation of the rotating disk is changed, and the opening angle of the opening and closing disc is nonlinearly proportionally changed by the transmission ruler and the wire which transmits the rotational force of the tapered variable roller, so that the present invention is suitable for high power and low fuel consumption. And to reduce the exhaust gas at the time of sudden start or overload.

1 is an exemplary view showing a conventional throttle valve.

Figure 2a is an operating state of the conventional throttle valve.

b is a graph showing the relationship between the opening angle of the disc for opening and closing of the conventional throttle valve,

Figure 3 is a schematic diagram for explaining the operation and operation of the variable throttle valve according to the present invention.

Figure 4 is a graph showing the relationship between the opening angle and the stepping force of the disc for opening and closing according to the present invention.

* Explanation of symbols for main parts of the drawings

12: accelerator pedal. 16,16 ': wire.

18: Throttle Body Linkage. 20: Return spring.

22: rotating shaft, 24: opening and closing disc,

30: vehicle speed sensor. 32: control unit.

34: tension roller. 38: tapered drive roller.

40: Tapered variable roller. 42: electromagnetic hydraulic control valve.

44: hydraulic damper. 46: Return spring.

48: delivery roller. 50,50 ': roller.

Referring to the configuration and operation of the present invention in detail based on the accompanying drawings as follows.

According to the present invention, the tapered drive roller 38 is rotated by the tension roller 34 on which one side of the wire 16 of the accelerator pedal 12 is wound, and the tapered drive roller 38 is engaged or rubbed. The hydraulic pressure is supplied to the hydraulic damper 44 by being coupled but receiving a signal from the vehicle speed sensor 30 to control the opening and closing amount of the electromagnetic hydraulic control valve 42 according to the vehicle speed. The throttle body linkage of the throttle valve 14 controls the variable amount of rotation at the lower end of the tapered variable roller 40 and the tapered variable roller 40 at which the piston rod 42 is moved back and forth by hydraulic pressure supplied to the lower end of the tapered variable roller 40. A variable throttle valve of a vehicle engine equipped with a transfer roller 48 for transferring the wire 16 'to 18.

In addition, the piston rod 42 of the tapered variable roller 40 is burned by the return spring 46 in the hydraulic damper 44.

Exemplary Drawings FIG. 3 is a schematic diagram for explaining the configuration and operation of a variable throttle valve according to the present invention. FIG.

The present invention is such that the opening angle (θ) of the opening and closing disk (24) of the throttle valve by the tapered variable roller 40 coupled with the tapered drive roller 38 is variable when supplying the pedal force (F) to the accelerator pedal 12 It is.

Here, the tapered drive roller 3S is interlocked with the tension roller 34 on which one side of the wire 16 of the accelerator pedal 12 is wound, and the driving of the tapered variable roller 40 is controlled to the control unit 32 as a whole. It is controlled by

That is, the vehicle speed sensor 30 for detecting the vehicle speed of the vehicle is connected to the input terminal of the control unit 32, and the output amount of the pressurized hydraulic pressure is electronically controlled by the control unit 32 at the output terminal of the control unit 32. Is connected to the electrohydraulic control valve (42).

In addition, the rear end of the electromagnetic hydraulic control valve 42 is equipped with a hydraulic damper 44, the piston rod 42 of the tapered variable roller 40 by the hydraulic pressure flowing through the electromagnetic hydraulic control valve 42 is The tapered variable roller 40 is reversed while being pushed, and the tapered variable roller 40 to which the tapered drive roller 38 is coupled is sweetened.

That is, when the power is supplied to the accelerator pedal 12 and the wire 16 is pulled, the tension roller 34 is pulled to rotate the taper driving roller 38. At this time, the taper variable roller 40 is controlled by the control of the control unit 32. When the back is pushed back by the hydraulic pressure, the tapered drive roller 38 is coupled to the rear side of the tapered variable roller 40 is the larger side is coupled to the front side of the smaller diameter, the rotation of the tapered variable roller It will be different from the beginning.

In addition, the piston rod 42 of the tapered variable roller 40 enters into the hydraulic damper 44 mounted on the rear end flow path of the electromagnetic hydraulic control valve 42 and is supported by the return spring 46 in the hydraulic damper 44. will be.

In addition, a transfer roller 48 for transmitting the variable rotational amount to the throttle body linkage 18 of the throttle valve 14 to the wire 16 ′ is provided at the bottom of the tapered variable roller 40. Accordingly, the wire 16 'may be connected to the plurality of rollers 50 and 50'.

Therefore, in the present invention, when the speed detected by the vehicle speed sensor 30 is low, the control unit 32 adjusts the opening amount of the electromagnetic hydraulic control valve 42 to reduce the flow rate supplied to the hydraulic damper 44. do.

Accordingly, the relatively small hydraulic pressure is pushed out of the hydraulic damper 44 by the return spring 46 holding the piston rod 42 of the tapered variable roller 40, so that the tapered variable roller 40 is the hydraulic damper 44. ), The tapered drive roller 38 is in a state in which the diameter of the tapered variable roller 40 is linked to the rear of the larger side.

When the driver steps on the accelerator pedal 12 for acceleration at the low speed converted to such a state, the taper drive roller 38 is rotated by the wire 16 and the tension roller 34. The taper drive roller 30 Since the diameter of the tapered variable roller 40 coupled to the large taper drive roller 38 is rotated two times when the tapered variable roller 40 is rotated less than this, the disc 24 for opening and closing the throttle valve 24 The dike angle θ of becomes small.

Therefore, since the opening angle [theta] of the opening and closing disc 24 due to the stepping force F applied to the accelerator pedal 12 at a low speed becomes large, acceleration is slowed down.

On the contrary, at a high speed greater than the low speed, the flow rate supplied to the hydraulic damper 44 by the control unit 32 that controls the opening amount of the electromagnetic hydraulic control valve 42 increases rather than at low speed, and thus the return spring ( 46 is pushed by the increased hydraulic pressure, so that the piston rod 42 is lowered, so that the tapered variable roller 40 reverses downward in the drawing. Therefore, the taper drive roller 38 is in a state where the diameter of the taper variable roller 40 is linked to the front surface of the smaller one.

When the driver steps on the accelerator pedal 12 for further acceleration at the high speed converted to this state, the taper drive roller 38 is rotated by the wire 16 and the tension roller 34, for example. Since the diameter of the tapered variable roller 40 combined with 30 decreases, the tapered variable roller 40 rotates similarly when the taper driving roller 38 rotates once, and thus the disc 24 for opening and closing the throttle valve 24 is rotated. The redirection angle of becomes larger than at low speed.

Therefore, since the opening angle [theta] of the original disk 24 for defeat due to the stepping force F applied to the accelerator pedal 12 at high speed becomes larger than at low speed, acceleration is accelerated.

As described above, the present invention uses a tapered drive roller 38 and a taper variable roller 40 having different diameters and inclined side surfaces, but are controlled by the control of the control unit 32 according to the vehicle speed among the tapered rollers. The tapered variable roller 40 is moved forward and backward in the tapered drive roller to change the amount of rotation, and the opening angle of the opening and closing disc by the transfer roller 48 and the wire 16 'which transmits the rotational force of the tapered variable roller. The opening degree is nonlinearly and variably proportioned, and the present invention has the effect of matching high output and low fuel consumption, and reducing exhaust gas at the time of sudden start or overload.

Claims (2)

The tapered drive roller 38 is rotated by the tension roller 34 on which one side of the wire 16 of the accelerator pedal 12 is rotated at the time of supply of the pedal force, and the tapered drive roller 38 is engaged or frictionally engaged with the tapered drive roller 38, but the vehicle speed The hydraulic unit is supplied to the hydraulic damper 44 while the control unit 32 adjusts the opening / closing amount of the electromagnetic hydraulic control valve 42 according to the vehicle speed in response to the signal of the sensor 30. The throttle body linkage 18 of the throttle valve 14 controls the variable amount of rotation at the lower end of the tapered variable roller 40 and the tapered variable roller 40 where the piston rod 42 is moved back and forth by hydraulic pressure. A variable throttle valve of a vehicle engine, characterized in that the transmission roller 48 for transmitting to the wire 16 '. The variable throttle valve according to claim 1, wherein the piston rod (42) of the tapered variable roller (40) is supported by a return spring (46) in the hydraulic damper (44).