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Manual-control drum-type transmission sensing fine tuning intelligent oil feeder

A technology of oil feeder and barrel type, which is applied in the field of fine-tuning intelligent oil feeder of manual control barrel type transmission sensor, which can solve problems such as unsatisfactory, narrow air-fuel ratio adjustment range, increased fuel consumption and emissions, and reduce installation and the difficulty of disassembly, avoiding signal confusion, and reducing emissions

Inactive Publication Date: 2013-01-23
SOUTHWEST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] 1. Since there is no oil needle lift sensor and throttle opening sensor, it cannot automatically detect the change of fuel supply caused by the change of oil needle lift, and cannot automatically detect the change of steam supply caused by the throttle opening. Therefore, The electronic control unit cannot match, correct and adjust the air-fuel ratio in real time according to the change of fuel supply, so as to achieve the best match of throttle opening, speed, torque and engine gear, resulting in unstable engine operation;
[0014] 2. The adjustment range of the intake air volume is limited, and the adjustment range of the air-fuel ratio is narrow;
The operation of human control (manual or foot) depends entirely on the driver's subjectivity. Because there is no automatic detection, correction and elimination of the driver's operation errors, it is impossible to achieve the optimum throttle opening, speed, torque and engine gear. When the vehicle speed changes suddenly, the abnormal air-fuel ratio will cause the engine to run in an unsteady state, which will inevitably make it difficult to match the engine power and driving resistance, resulting in unstable engine operation; at the same time, the motor vehicle is operated by the driver In the case of not knowing the driving resistance, the speed change device that is only operated and controlled based on experience often forces the engine speed to drop to work in the low-efficiency area due to the increase in driving resistance when starting, uphill, and heavy loads, and the driver often overdrives. Large fuel supply to prevent the engine from "flashing", but the air-fuel ratio control is not ideal, which increases fuel consumption and emissions
[0020] In order to solve the above problems, in the prior art, a sensor for detecting the opening of the oil needle is arranged on the carburetor of the engine. After the sensor detects the opening of the oil needle, the opening signal is sent to the electronic control unit (ECU), The electronic control unit (ECU) automatically adjusts the shifting operation according to the opening signal; this structure cannot reasonably match the fuel intake and intake air volume, and the actual intake air volume is quite different from the theoretical intake curve, which is unfavorable to the engine running state Affects, affects emissions and reduces engine operating efficiency
Moreover, the sensor of this structure is arranged near the oil needle plunger of the carburetor, especially when the Hall element with high precision and strong adaptability is used, it is necessary to arrange auxiliary parts such as magnets, which will make the carburetor The structure itself is complex and the volume increases, which is not suitable for layout and installation; and the high temperature in the engine will be transmitted to the sensor through the oil needle, affecting the accuracy of the sensor's detection parameters, and even sending out completely wrong signals, affecting the normal issuance of the next command , thereby affecting the normal driving of motor vehicles

Method used

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  • Manual-control drum-type transmission sensing fine tuning intelligent oil feeder
  • Manual-control drum-type transmission sensing fine tuning intelligent oil feeder
  • Manual-control drum-type transmission sensing fine tuning intelligent oil feeder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] figure 1 It is a structural schematic diagram of Embodiment 1 of the present invention, figure 2 for figure 1 Sectional view along A-A, image 3 for figure 1 View along direction B, Figure 4 for image 3 The sectional view along C-C is as shown in the figure: the electric cylinder type transmission sensor fine-tuning intelligent oil supply device of this embodiment includes the oil supply body 1 and the throttle valve and oil inlet system arranged on the oil supply body 1, The oil inlet system includes a main nozzle 3, an oil needle 2 and an oil needle plunger 11 fixedly connected to the oil needle 2 in the axial direction. The oil needle plunger guide chamber 8 (direction indicated by a in the figure) and the throttle valve core guide chamber 26 (direction indicated by b in the figure) for the throttle valve core 15 to reciprocate in the axial direction; same as the prior art, the oil needle Both the plunger 11 and the throttle valve core 15 are provided with a...

Embodiment 2

[0058] Figure 5 It is a schematic structural diagram of Embodiment 2 of the present invention, Image 6 for Figure 5 View along direction D, Figure 7 for Image 6 Sectional view along E-E, Figure 9 It is a block diagram of the control principle of the present invention, as shown in the figure: the difference between this embodiment and the first embodiment is that the automatic control system also includes a throttle opening detection device, and the throttle opening detection device includes a valve fixed on the oil supply body The guide cylinder II 21, the guide plunger II 18 arranged in the guide cylinder II 21 and slidingly matched with it in the axial direction, and the throttle opening detection element for detecting the sliding displacement of the guide plunger II 18; the throttle opening The throttle opening degree signal detected by the degree detection element is input into the electronic control unit 25; the guide plunger II 18 is fixedly matched with the th...

Embodiment 3

[0063] The difference between this embodiment and Embodiment 1 is that the oil needle displacement detection element is a potentiometer type displacement sensor 24, and the potentiometer type displacement sensor 24 is fixedly arranged in the guide cylinder 16, and the potentiometer type displacement sensor 24 The telescopic probe 23 coaxially withstands the guide plunger 15, and is located between the guide plunger 15 and the potentiometer type displacement sensor 24, and the telescopic probe 23 is provided with a return spring 27;

[0064] Compared with Embodiment 1, this embodiment only has a different structure of the oil needle displacement detection element, and the rest of the structures are the same, so the reference signs of the same parts as Embodiment 1 are completely the same; this embodiment adopts potentiometer displacement The sensor has simple structure, large output signal, convenient use and low price.

[0065] The control principle of this embodiment is the s...

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Abstract

The invention discloses a manual-control drum-type transmission sensing fine tuning intelligent oil feeder which comprises an oil feeder body, a throttle, an oil ingression system and an automatic control system, wherein the throttle is arranged on the body of the oil feeder; a streak lift detection device which is independent relatively adopted for the automatic control system provided by the invention, thus sensing elements can not be affected by the high temperature of a motor; the aperture of a carburetor needle is collected accurately, the phenomenon of signals in disorder can be avoidedfrom happening; the aperture of the throttle is controlled through combining other parameter signals by an electronic control unit (EGU) according to the lift position signals of an oil needle lift mechanism, and the aperture of the throttle is examined and detected to examine whether the aperture is required by the position sensor signals on a throttle aperture mechanism, thus the optimal match and control between the aperture of the throttle and the oil needle lift is achieved; and therefore the required combustible mixing gas required by the theory air-fuel ratio is achieved, the optimal match and control of the motor power target (loading, rotation speed), the oil needle lift, the aperture of the throttle and the gear can be achieved.

Description

technical field [0001] The invention relates to a component of an engine fuel supply system, in particular to a hand-controlled barrel-type transmission sensor fine-tuning intelligent fuel supply device. Background technique [0002] The engine is the power source of a motor vehicle, and its operating status is directly related to the driving performance of the motor vehicle, and has a decisive impact on various economic indicators of the motor vehicle, including cost and environmental protection performance. Proper fuel supply, air supply and air-fuel ratio when the engine is working are one of the most important indicators of the engine, which determine whether the vehicle's power performance, fuel economy performance, and emissions meet environmental protection requirements. [0003] Ideal air-fuel ratio for engine combustion: The complete combustion of 1g of gasoline theoretically requires 14.7g of air. The air-fuel ratio is different under different working conditions,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02M7/14
Inventor 薛荣生郝允志周黔
Owner SOUTHWEST UNIV
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