Electric control air injection boosting accelerating device of turbocharger

Abstract

The utility model belongs to the technical field of air injection devices, and particularly relates to an electric control air injection boosting accelerating device of a turbocharger, which comprises a controller, an electromagnetic valve and three sensors, the controller is connected with the electromagnetic valve, a control circuit board is fixed in the controller, the number of the sensors is three, and the electromagnetic valve is connected with the controller. The three sensors are respectively an engine rotating speed sensor, a pressure sensor and a supercharger rotating speed sensor; the controller internally comprises a shell and a control circuit board; the engine rotating speed sensor is fixed on an engine, and the pressure sensor is fixed on a pipeline of an outlet of the gas storage tank. The power circuit on the control circuit board converts external input 24V voltage into 5V working voltage required by the circuit board, the pressure sensor and the rotating speed sensor collect pressure and control signals, the pressure and control signals enter the pressure and rotating speed signal processing circuit to be processed, the processed signals enter the single chip microcomputer, and therefore the purpose of controlling air inlet is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of jet device technology, specifically relating to an electronically controlled jet booster acceleration device for a turbocharger. Background Technology

[0002] When existing engines operate at low speeds and high loads, turbochargers are prone to insufficient air intake. Specifically, at low engine speeds, the exhaust pressure drops, causing the turbocharger's speed to decrease accordingly, resulting in reduced air intake. In this situation, insufficient air intake leads to incomplete combustion, causing the engine to emit black smoke and reducing power and fuel economy. Furthermore, insufficient air intake also results in longer acceleration times and sluggish response, further impacting engine performance. To address this issue, it is typically necessary to adjust the air intake in real-time to adapt to different operating conditions. Simultaneously, turbochargers withstand significant pressure during operation, thus requiring equipment that responds quickly and provides timely air injection. Utility Model Content

[0003] To address the technical problem of insufficient air intake in existing engines operating at low speeds and high loads, this invention provides an electronically controlled jet booster acceleration device for turbochargers, which features high integration and control precision.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A turbocharger electronically controlled jet booster acceleration device includes a controller, a solenoid valve, and sensors. The controller is connected to the solenoid valve, and the control circuit board is fixed inside the controller. Three sensors are included: an engine speed sensor, a pressure sensor, and a turbocharger speed sensor. The controller contains a housing and a control circuit board. The engine speed sensor is fixed to the engine, and the pressure sensor is fixed to the pipeline at the outlet of the air tank. The control circuit board is connected to the sensors via connector terminals, receives pressure and speed signals from external sensors, performs calculations using a microcontroller, and outputs drive signals to open and close the solenoid valve, thereby controlling the intake air.

[0006] The housing is equipped with an indicator light that is electrically connected to the control circuit board, and the housing is provided with buttons, digital tube openings and wiring terminals.

[0007] The buttons include a jet button, a setting button, a left adjustment button, an up adjustment button, and a confirmation button. The jet button, setting button, left adjustment button, up adjustment button, and confirmation button are all electrically connected to the control circuit board.

[0008] The control circuit board includes a power supply circuit, a pressure and speed signal processing circuit, a microcontroller interface circuit, a relay drive circuit, and a display circuit. The microcontroller interface circuit is electrically connected to the power supply circuit, the pressure and speed signal processing circuit, the relay drive circuit, and the display circuit, respectively.

[0009] The pressure and speed signal processing circuit includes a pressure signal processing circuit and a speed signal processing circuit. The pressure signal processing circuit includes a pressure signal driving circuit resistor, a first capacitor, a second capacitor, a 5V power supply, a DZ11 port, and a DZ12 port. The 5V power supply is electrically connected to the DZ11 port. The DZ12 port is electrically connected to the signal driving circuit resistor and the first capacitor, respectively. The signal driving circuit resistor is electrically connected to the second capacitor. The signal driving circuit resistor is electrically connected to the microcontroller interface circuit.

[0010] The rotational speed signal processing circuit includes a comparator, a Schmitt trigger chip, a third capacitor, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a first diode, a second diode, a DZ6 port, and a power supply. The DZ6 port is electrically connected to the first resistor. The first resistor is grounded through the third capacitor. The first resistor is electrically connected to the power supply through the first diode. The first resistor is grounded through the second diode. The first resistor is electrically connected to the second resistor. The second resistor is connected to the positive input terminal of the comparator. The negative input terminal of the comparator is electrically connected to the power supply through the fourth resistor. The negative input terminal of the comparator is grounded through the fifth resistor. The output terminal of the comparator is electrically connected to the Schmitt trigger chip. The output terminal of the comparator is connected to the positive input terminal of the comparator through the sixth resistor. The output terminal of the comparator is electrically connected to the power supply through the third resistor. The Schmitt trigger chip is electrically connected to the microcontroller interface circuit.

[0011] The relay driving circuit includes a relay, a third diode, and a driving transistor. The positive terminal of the relay coil is electrically connected to the power supply, and the negative terminal of the relay coil is electrically connected to the power supply through the third diode. The negative terminal of the relay coil is connected to the collector of the driving transistor. The normally open contact of the relay is connected between terminals DZ4 and DZ5. The emitter of the driving transistor is grounded, and the base of the driving transistor is electrically connected to the microcontroller interface circuit.

[0012] The comparator is an LM2903 comparator, and the Schmitt trigger chip is a 74HC14 Schmitt trigger.

[0013] The relay is a JQX-115F-5V electromagnetic relay.

[0014] Compared with the prior art, the advantages of this utility model are:

[0015] The power supply circuit on the control circuit board of this invention converts the externally input 24V voltage into the 5V operating voltage required by the circuit board. The pressure sensor and speed sensor collect the pressure and control signals, which are then processed by the pressure and speed signal processing circuit. The processed signals are then sent to the microcontroller to achieve the purpose of controlling the air intake. This invention integrates the control circuit and the actuator together, improving the integration level of the equipment and simplifying the system structure. Attached Figure Description

[0016] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0017] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the principle of this utility model;

[0020] Figure 3 This is a schematic diagram of the housing panel of this utility model;

[0021] Figure 4 This is a schematic diagram of the control circuit board of this utility model;

[0022] Figure 5 This is a schematic diagram of the pressure signal processing circuit of this utility model;

[0023] Figure 6 This is a schematic diagram of the speed signal processing circuit of this utility model;

[0024] Figure 7 This is a schematic diagram of the relay drive circuit of this utility model.

[0025] Wherein: 1 is the controller, 2 is the solenoid valve, 3 is the control circuit board, 4 is the engine speed sensor, 5 is the pressure sensor, 6 is the turbocharger speed sensor, 7 is the housing, 8 is the engine, 9 is the air tank, 10 is the indicator light, 11 is the jet button, 12 is the digital display, 13 is the terminal block, 14 is the setting button, 15 is the left adjustment button, 16 is the up adjustment button, 17 is the confirmation button, 18 is the power circuit, 19 is the pressure and speed signal processing circuit, 20 is the microcontroller interface circuit, 21 is the relay drive circuit, 22 is the... The display circuit uses R41 as the pressure signal drive circuit resistor, C12 as the first capacitor, C13 as the second capacitor, 5V as the 5V power supply, U4A as the comparator, U2A as the Schmitt trigger chip, C24 as the third capacitor, R35 as the first resistor, R36 as the second resistor, R37 as the third resistor, R38 as the fourth resistor, R39 as the fifth resistor, R40 as the sixth resistor, D8 as the first diode, D9 as the second diode, VCC as the power supply, K2A as the relay, D5 as the third diode, and N20 as the driver transistor. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. These descriptions are only for further illustrating the features and advantages of this utility model, and not for limiting the claims of this utility model. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0028] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0029] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] A turbocharger electronically controlled jet booster acceleration device, such as Figure 1 , Figure 2 As shown, the system includes a controller 1, a solenoid valve 2, and sensors. The controller 1 is connected to the solenoid valve 2, and a control circuit board 3 is fixed inside the controller 1. There are three sensors: an engine speed sensor 4, a pressure sensor 5, and a turbocharger speed sensor 6. The controller 1 contains a housing 7 and the control circuit board 3. The controller 1 and control circuit board 3 are installed inside the housing 7. Pressure and speed signals are obtained through the three sensors. When the cylinder pressure is greater than the threshold pressure, the jet switch is activated, opening the solenoid valve 2. The pressure sensor 5 is installed on the pipeline at the outlet of the gas tank 9. The pressure signal obtained by the pressure sensor 5 is processed by a microcontroller. If the processing detects that the cylinder pressure is greater than the set cylinder pressure, the solenoid valve 2 is opened, activating the jet switch, thereby achieving the effect of supplemental air intake. This invention can be powered by an external 24VDC power supply. The control circuit board 3 receives pressure and speed signals from external pressure sensor 5, engine speed sensor 4, and turbocharger speed sensor 6 via a plug. These signals are processed by a microcontroller, which outputs a relay drive signal to drive the opening and closing of solenoid valve 2. Solenoid valve 2 is connected to a gas cylinder, thereby enabling the device to control the intake and replenishment of air into the turbocharger. When the gas cylinder pressure does not reach the set value, the device operates normally, only responsible for collecting data transmitted from different sensors. When the gas cylinder pressure reaches the set value, the microcontroller immediately transmits a signal to the relay drive circuit, driving the solenoid valve to open. The gas cylinder connected to the solenoid valve can then enter the turbocharger through the solenoid valve, achieving the purpose of jet boost.

[0031] Furthermore, an indicator light 10 electrically connected to the control circuit board 3 is fixed on the housing 7. The housing 7 is equipped with buttons, a digital tube 12 opening, and wiring terminals 13. The indicator light 10 displays the current status of the device. Specifically, the indicator light 10 displays the parameters of low air pressure, number of teeth, air pressure threshold, and jet time. When the gas cylinder pressure reaches the preset value inside the microcontroller, the low air pressure and air pressure threshold indicator lights will light up. When the setting button is pressed, the number of teeth and jet time can be selected. During manual setting, the number of teeth button or the jet time button light will illuminate.

[0032] Furthermore, such as Figure 3 As shown, the buttons include a jet button 11, a setting button 14, a left adjustment button 15, an up adjustment button 16, and a confirmation button 17. The jet button 11, setting button 14, left adjustment button 15, up adjustment button 16, and confirmation button 17 are all electrically connected to the control circuit board 3. Pressing the corresponding function button will trigger the corresponding function.

[0033] Furthermore, such as Figure 4 As shown, the control circuit board 3 includes a power supply circuit 18, a pressure and speed signal processing circuit 19, a microcontroller interface circuit 20, a relay drive circuit 21, and a display circuit 22. The pressure and speed signal processing circuit 19 receives feedback signals from the pressure sensor and speed sensor, which are then input to the corresponding interface of the microcontroller via the microcontroller interface circuit 20. After processing by the microcontroller, the signal enters the relay drive circuit 21, which controls the opening and closing of the external solenoid valve. The display circuit 22 displays the rotational speed. The power supply circuit 18 converts the 24V power supply voltage into a 5V operating voltage to power other circuits.

[0034] Furthermore, the pressure and speed signal processing circuit 19 mainly receives signals from external pressure and speed sensors and inputs them into the corresponding interfaces of the microcontroller through the processing circuit; the microcontroller interface circuit 20 mainly implements the peripheral circuits required for the normal operation of the microcontroller; the relay drive circuit 21 receives the control signals input by the microcontroller, processes them through the circuit, and outputs relay drive signals to make the relay run according to the corresponding program; the display circuit 22 displays the jet time data and pressure and speed signal data processed by the microcontroller interface circuit through a digital tube.

[0035] Furthermore, such as Figure 5 As shown, the pressure and speed signal processing circuit 19 includes a pressure signal processing circuit and a speed signal processing circuit. The pressure signal processing circuit includes a pressure signal driving circuit resistor R41, a first capacitor C12, a second capacitor C13, a 5V power supply, a DZ11 port, and a DZ12 port. The 5V power supply is electrically connected to the DZ11 port. The DZ12 port is electrically connected to the signal driving circuit resistor R41 and the first capacitor C12. The signal driving circuit resistor R41 is electrically connected to the second capacitor C13. The signal driving circuit resistor R41 is electrically connected to the microcontroller interface circuit 20. The 5V power supply is provided through the DZ11 port, enters through the DZ12 port, is filtered by the first capacitor C12, and is current-limited by the pressure signal driving circuit resistor R4, outputting a 0-5V pressure signal, which then enters the microcontroller interface circuit 20.

[0036] Furthermore, such as Figure 6As shown, the speed signal processing circuit includes a comparator U4A, a Schmitt trigger chip U2A, a third capacitor C24, a first resistor R35, a second resistor R36, a third resistor R37, a fourth resistor R38, a fifth resistor R39, a sixth resistor R40, a first diode D8, a second diode D9, a DZ6 port, and a power supply VCC. The DZ6 port is electrically connected to the first resistor R35. The first resistor R35 is grounded through the third capacitor C24. The first resistor R35 is electrically connected to the power supply VCC through the first diode D8. The first resistor R35 is grounded through the second diode D9. The first resistor R35... 5. Electrically connected is a second resistor R36, which is connected to the positive input terminal of comparator U4A. The negative input terminal of comparator U4A is electrically connected to the power supply VCC through a fourth resistor R38. The negative input terminal of comparator U4A is grounded through a fifth resistor R39. The output terminal of comparator U4A is electrically connected to the Schmitt trigger chip U2A. The output terminal of comparator U4A is connected to the positive input terminal of comparator U4A through a sixth resistor R40. The output terminal of comparator U4A is electrically connected to the power supply VCC through a third resistor R37. The Schmitt trigger chip U2A is electrically connected to the microcontroller interface circuit 20. The speed signal from the speed sensor enters through port DZ6, is current-limited by the first resistor R35, filtered by the third capacitor C24, then clamped by the first diode D8 and the second diode D9, the fourth resistor R38 and the fifth resistor R39 provide the comparison voltage, the sixth resistor R40 is the feedback resistor, and after passing through comparator U4A and the third resistor R37, it enters the Schmitt trigger chip U2A to shape the speed signal and output the speed drive signal, which then enters the microcontroller's speed acquisition interface.

[0037] Furthermore, such as Figure 7 As shown, the relay drive circuit 21 includes a relay K2A, a third diode D5, and a drive transistor N20. The positive terminal of the relay K2A coil is electrically connected to the power supply VCC, and the negative terminal of the relay K2A coil is electrically connected to the power supply VCC through the third diode D5. The negative terminal of the relay K2A coil is connected to the collector of the drive transistor N20. The normally open contact of the relay K2A is connected between terminals DZ4 and DZ5. The emitter of the drive transistor N20 is grounded, and the base of the drive transistor N20 is electrically connected to the microcontroller interface circuit 20. The microcontroller interface output signal enters the base of the drive transistor N20 through PB6, then enters the collector of the drive transistor N20 and connects to the coil of the relay K2A. The normally open contact of the relay K2A is connected to terminals DZ4 and DZ5, thereby achieving the purpose of controlling the solenoid valve 2.

[0038] Furthermore, preferably, comparator U4A uses an LM2903 comparator, and Schmitt trigger chip U2A uses a 74HC14 Schmitt trigger. Relay K2A uses a JQX-115F-5V electromagnetic relay.

[0039] The above description only describes the preferred embodiments of the present utility model. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model, and all such changes should be included within the protection scope of the present utility model.

Claims

1. A turbocharger electronically controlled jet booster acceleration device, characterized in that: The system includes a controller (1), a solenoid valve (2), a control circuit board (3), and sensors. The controller (1) is connected to the solenoid valve (2), and the control circuit board (3) is fixed inside the controller (1). There are three sensors: an engine speed sensor (4), a pressure sensor (5), and a turbocharger speed sensor (6). The controller (1) contains a housing (7) and a control circuit board (3). The engine speed sensor (4) is fixed on the engine (8), and the pressure sensor (5) is fixed on the pipeline at the outlet of the air tank (9). The control circuit board (3) is connected to the sensors through a plug terminal (13), receives the pressure and speed signals output by the external sensors, performs calculations through a microcontroller, and outputs a drive signal to drive the solenoid valve (2) to open and close, thereby achieving the purpose of controlling the intake air.

2. The turbocharger electronically controlled jet booster acceleration device according to claim 1, characterized in that: The housing (7) is fixed with an indicator light (10) that is electrically connected to the control circuit board (3). The housing (7) is provided with a button, a digital tube (12) opening and a wiring terminal (13).

3. The turbocharger electronically controlled jet booster acceleration device according to claim 2, characterized in that: The buttons include a jet button (11), a setting button (14), a left adjustment button (15), an up adjustment button (16), and a confirmation button (17). The jet button (11), setting button (14), left adjustment button (15), up adjustment button (16), and confirmation button (17) are all electrically connected to the control circuit board (3).

4. The turbocharger electronically controlled jet booster acceleration device according to claim 1, characterized in that: The control circuit board (3) includes a power supply circuit (18), a pressure and speed signal processing circuit (19), a microcontroller interface circuit (20), a relay drive circuit (21), and a display circuit (22). The microcontroller interface circuit (20) is electrically connected to the power supply circuit (18), the pressure and speed signal processing circuit (19), the relay drive circuit (21), and the display circuit (22), respectively.

5. The turbocharger electronically controlled jet booster acceleration device according to claim 4, characterized in that: The pressure and speed signal processing circuit (19) includes a pressure signal processing circuit and a speed signal processing circuit. The pressure signal processing circuit includes a pressure signal driving circuit resistor (R41), a first capacitor (C12), a second capacitor (C13), a 5V power supply (5V), a DZ11 port, and a DZ12 port. The 5V power supply (5V) is electrically connected to the DZ11 port. The DZ12 port is electrically connected to the signal driving circuit resistor (R41) and the first capacitor (C12). The signal driving circuit resistor (R41) is electrically connected to the second capacitor (C13). The signal driving circuit resistor (R41) is electrically connected to the microcontroller interface circuit (20).

6. The turbocharger electronically controlled jet booster acceleration device according to claim 5, characterized in that: The speed signal processing circuit includes a comparator (U4A), a Schmitt trigger chip (U2A), a third capacitor (C24), a first resistor (R35), a second resistor (R36), a third resistor (R37), a fourth resistor (R38), a fifth resistor (R39), a sixth resistor (R40), a first diode (D8), a second diode (D9), a DZ6 port, and a power supply (VCC). The DZ6 port is electrically connected to the first resistor (R35), which is grounded through the third capacitor (C24). The first resistor (R35) is electrically connected to the power supply (VCC) through the first diode (D8), and grounded through the second diode (D9). The circuit is electrically connected to a second resistor (R36), which is connected to the positive input terminal of the comparator (U4A). The negative input terminal of the comparator (U4A) is electrically connected to the power supply (VCC) through a fourth resistor (R38). The negative input terminal of the comparator (U4A) is grounded through a fifth resistor (R39). The output terminal of the comparator (U4A) is electrically connected to the Schmitt trigger chip (U2A). The output terminal of the comparator (U4A) is connected to the positive input terminal of the comparator (U4A) through a sixth resistor (R40). The output terminal of the comparator (U4A) is electrically connected to the power supply (VCC) through a third resistor (R37). The Schmitt trigger chip (U2A) is electrically connected to the microcontroller interface circuit (20).

7. The turbocharger electronically controlled jet booster acceleration device according to claim 4, characterized in that: The relay driving circuit (21) includes a relay (K2A), a third diode (D5), and a driving transistor (N20). The positive terminal of the relay (K2A) coil is electrically connected to the power supply (VCC), and the negative terminal of the relay (K2A) coil is electrically connected to the power supply (VCC) through the third diode (D5). The negative terminal of the relay (K2A) coil is connected to the collector of the driving transistor (N20). The normally open contact of the relay (K2A) is connected between the DZ4 terminal and the DZ5 terminal. The emitter of the driving transistor (N20) is grounded, and the base of the driving transistor (N20) is electrically connected to the microcontroller interface circuit (20).

8. A turbocharger electronically controlled jet booster acceleration device according to claim 6, characterized in that: The comparator (U4A) is an LM2903 comparator, and the Schmitt trigger chip (U2A) is a 74HC14 Schmitt trigger.

9. A turbocharger electronically controlled jet booster acceleration device according to claim 7, characterized in that: The relay (K2A) is a JQX-115F-5V electromagnetic relay.

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