CN201059220Y - Vehicle engine electronic control unit connection structure - Google Patents

Abstract

The utility model relates to a vehicle engine electronic control unit connection structure, mainly install the electronic control unit of steerable engine injection system function by throttle valve body, the internal horizontal valve shaft that is equipped with of this choke valve, this valve shaft end has a recess, and be connected with the control turntable of electronic control unit aperture perceptron, this control turntable extends has a spliced pole, this spliced pole is corresponding with the recess of this valve shaft, wherein, be equipped with the bellying on this spliced pole, can make the recess of valve shaft and spliced pole produce to interfere with and compel tightly by this bellying, and avoid the production of internal clearance, and then can make the aperture perceptron correct opening of surveying throttle valve body valve, and make the injection apparatus spout right amount fuel and air mix the back input combustion chamber, in order to reach the efficiency that makes the engine obtain the best control situation.

Description

Vehicle engine electronic control unit connection structure

technical field

The utility model relates to a connection structure of an electronic control unit of a vehicle engine, in particular to a structure in which a protrusion is provided on a connecting column of a control dial of an opening sensor, so that the groove of the valve shaft and the connecting column can interfere tightly.

Background technique

The operation of the injection system of the injection engine of the motorcycle depends on the control of the electronic control unit 1, the configuration of the electronic control unit 1, as shown in the published documents, has been widely known to the vehicle industry.

As far as the public documents are concerned, as shown in Figures 1 and 2, the electronic control unit 1 is arranged on one side of the throttle valve body 11, and a valve 12 is arranged inside the throttle valve body 11, and the valve 12 is connected to the On the valve shaft 13, the valve 12 can be connected to the refueling handle (not shown here) of the motorcycle by the traction assembly 14, and is driven to rotate by the refueling handle. The end of the valve shaft 131 has a groove 131, and the electronic control unit 1 The control dial 15 of the opening sensor is provided with a connecting column 151 that can cooperate with the groove 131; The connection of the connecting column 151 can drive the control dial 15 to rotate, and make the opening sensor detect the rotation angle of the valve 12, and then control the injection device to spray a proper proportion of oil and gas for the engine explosion.

Please refer to Fig. 2, since the control dial 15 is molded by plastic injection, the thickness of the connecting post 151 cannot be effectively controlled in order to match the angle of film pulling, so the groove 131 of the valve shaft 13 is often connected with the connecting post. 151, and once there is a gap between the groove 131 and the connecting column 151, when the valve 12 has been rotated by a small angle, the opening sensor is still in the state of zero, and thus makes When the control dial 15 is really driven to rotate, the voltage value of the opening sensor is a wrong value, resulting in an inaccurate ratio of fuel and air sprayed by the injection device, resulting in poor control of the engine.

In view of the aforementioned shortcomings in the connection of the existing vehicle engine electronic control unit, it is necessary to overcome the lack of play between the valve shaft of the throttle body and the connecting column of the control dial.

Utility model content

The primary purpose of the present utility model is to provide a vehicle engine electronic control unit connection structure. The electronic control unit that can control the operation of the engine injection system is mainly installed next to the throttle valve body. A valve shaft is arranged horizontally in the throttle valve body. , the valve shaft end has a groove, and is connected with the control dial of the opening sensor of the electronic control unit, and the control dial extends a connecting post, which corresponds to the groove of the valve shaft, wherein the connecting post There is at least one protruding part on it, and the protruding part can make the groove of the valve shaft interfere with the connecting column, and avoid the generation of play, so that the opening sensor can detect correctly Measure the opening degree of the throttle body valve, and make the injection device inject a proper amount of fuel mixed with air and then enter the combustion chamber to achieve the best control of the engine.

Description of drawings

Fig. 1 is a three-dimensional exploded view of a conventional electronic control unit and a throttle valve body.

Fig. 2 is a schematic diagram of the combination of the existing valve shaft and the control dial.

Fig. 3 is a schematic diagram of the utility model motorcycle.

Fig. 4 is a schematic diagram of the flow of the jet engine of the present invention.

Fig. 5 is a three-dimensional exploded view of the electronic control unit and the throttle valve body of the present invention.

Fig. 6 is a schematic view of the combination of the valve shaft and the control dial of the present invention.

Fig. 7 is a three-dimensional exploded view of the valve shaft and the control dial of another embodiment of the utility model.

Fig. 8 is a schematic view of the combination of the valve shaft and the control dial in another embodiment of the present invention.

Detailed ways

In order to be easier to understand the structure of the present utility model and the effect that can be achieved, it is described as follows in conjunction with the drawings:

First please refer to shown in Fig. 3, with regard to the motorcycle 2 of jet engine, be provided with a control handle 22 in the place ahead of a pedal pad 21, the front wheel 23 is pivoted on the lower side of this control handle 22, and on the pedal pad The rear of 21 is then the seat cushion 24 that raises, and the below of seat cushion 24 is provided with the storage box 25 that is accommodated for safety helmet or other articles, and the below of this storage box 25 is jet engine 3, and this jet engine 3 will The power is transmitted to the rear wheel 26, and the rotation of the rear wheel 26 can be driven after the jet engine 3 is activated, and then the front wheel 23 is driven to rotate synchronously to achieve the purpose of traveling. The injection engine 3 is provided with the operation process of the injection system 3a, please refer to FIG. 4 , it sends the fuel in a fuel oil tank 32 to the injection device 34 (that is, the nozzle) on the intake pipe 33 by a fuel pump 31 , and the opening degree of the throttle body 41 valve 42 of the air flow control device 4 is sensed by a throttle valve opening sensor 35. At the same time, the atmospheric temperature and pressure sensor 36 on the upstream side of the throttle body 41 senses the input. The temperature and pressure of the air in the trachea 33; the injection device 34 is controlled by an electronic control unit 5 and an appropriate amount of fuel is sprayed into the air inlet 38 of the injection engine 3 in the form of oil mist, so that the fuel oil of the oil mist and The air enters the combustion chamber 3b after being mixed in the intake passage 38, and the ignition signal is sent by the electronic control unit 5 to control the ignition device 37 to ignite the oil and gas, so that the piston 3c reciprocates to generate power, and the jet engine 3 is activated, and , the valve 42 of the throttle body 41 is connected to the refueling handle (not shown here) at the control handle 22 of the motorcycle 2 with the traction assembly. After turning the refueling handle, the valve 42 can be pulled through the traction assembly 6 to make The opening angle of the valve 42 becomes larger to allow more air to pass through. At the same time, the electronic control unit 5 makes the injection device 34 (that is, the nozzle) sprays an appropriate amount of fuel mixed with air and then enters the combustion chamber 3b to increase the power after the explosion, so as to accelerate the action.

Please refer to Fig. 5, the outer peripheral surface of the throttle valve body 41 is provided with a control part 43 that can be connected with the traction assembly 6, and a mounting part 44 that can be installed with the electronic control unit 5, and the mounting part 44 is provided with a plurality of The valve 42 of the throttle body 41 is arranged on the valve shaft 45, one end of the valve shaft 45 is connected with the control part 43, and the other end is formed with a groove 451. The electronic control unit 5 at least has a connection port 51, an engine air intake bypass passage 52, and a plurality of screw holes 53 corresponding to the penetration holes 441 of the throttle valve 41 mounting portion 44, and the connection port 51 can be output and output respectively. Connection of signal lines. Thereby, the electronic control unit 5 can be fixed on the throttle valve body 41 by screwing the assembly S, and a leak-proof gasket 7 is arranged between the electronic control unit 5 and the throttle valve body 41, so as to Increase the tightness after the combination of the electronic control unit 5 and the throttle valve body 41, wherein the control dial 351 of the throttle valve opening sensor 35 of the electronic control unit 5 extends a connecting column 352, and the connecting column 352 is connected to the valve The groove 451 of the shaft 45 corresponds, and at least one protrusion 353 is disposed on the surface of the connecting post 352 .

When the utility model is implemented, please refer to Figures 5 and 6 at the same time. When the throttle body 41 is connected to the electronic control unit 5, the installation part 44 of the throttle body 41 is fixed to the screw of the electronic control unit 5. hole 53, and is fixed with screw assembly S. At this time, the connecting column 352 of the control dial 351 can be inserted into the groove 451 of the valve shaft 45, and by the protrusion 353 on the connecting column 352, The interference tightness between the groove 451 of the valve shaft 45 and the connecting post 352 can be generated, thereby avoiding the generation of play.

The effect of the present utility model is that, by providing at least one protrusion 353 on the connecting post 352 of the control dial 351, the groove 451 of the valve shaft 45 can be combined with the connecting post 352 by using the raised part 353 Interference tightness can be generated at the same time to avoid the generation of play, and then the opening sensor 35 can correctly detect the opening of the throttle body 41 and the valve 42, and the injection device 34 can spray a proper amount of fuel and air After being mixed, it is input into the combustion chamber 3b to achieve the effect that the engine 3 can obtain the best control condition.

See also Fig. 7, shown in 8 again, it is the pattern of another embodiment of the present utility model, and when this valve shaft 45 is implemented, its end edge can be a boss 452, and this control dial 351 is then extended with a tool. A connecting part 354 of a groove, wherein, the end edge of the connecting part 354 is formed with a raised part 3541 towards the center of the groove, and the distance between the raised parts 3541 is slightly smaller than the thickness of the boss 452 of the valve shaft 45, thereby, When the boss 452 of the valve shaft 45 is combined with the connection part 354 of the control dial 351, the interference tightness between the boss 452 of the valve shaft 45 and the connection part 354 can be caused, and the generation of play can also be avoided, so that the throttling The valve opening sensor 35 correctly detects the opening of the throttle body 41 and the valve 42, and makes the injection device 34 inject a proper amount of fuel mixed with air and then enters the combustion chamber 3b, so that the engine 3 can obtain the best Efficacy for optimal control conditions.

To sum up, the utility model can indeed improve the efficiency of use through the connection structure of the above-mentioned electronic control unit.

Claims (4)

1. A vehicle engine electronic control unit connection structure, which is provided with a jet engine under the seat cushion, and a throttle body of the electronic control unit is arranged between the seat cushion jet engines, and the throttle body is provided with a valve shaft , the end edge of the valve shaft is formed with a groove, and the groove corresponds to the connecting column of the control dial of the electronic control unit opening sensor, and it is characterized in that: the connecting column is provided with at least one The groove of the shaft and the connecting post produce interference tightness to avoid the protrusion generated by the play. 2 . The connection structure of the vehicle engine electronic control unit according to claim 1 , wherein the thickness of the connecting post including the protrusion is greater than the pitch of the groove. 3 . 3. A vehicle engine electronic control unit connection structure, which is provided with a jet engine under the seat cushion, and a throttle body of the electronic control unit is arranged between the seat cushion jet engines, and the throttle body is provided with a valve shaft , the end edge of the valve shaft is formed with a protruding post, and the control dial of the electronic control unit opening sensor is extended with a connecting part with a groove, the protruding post corresponds to the connecting part, and it is characterized in that: the connecting part A protrusion is formed on the end edge toward the center of the groove, which can make the groove of the valve shaft interfere with the connecting column and prevent the generation of play. 4. The connection structure of the vehicle engine electronic control unit as claimed in claim 3, wherein the distance between the protrusions is slightly smaller than the thickness of the protrusions.

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