TWM507362U - Vehicle exhaust valve control structure - Google Patents

Description

Vehicle exhaust valve control structure

This creation is about a structure that can automatically change the exhaust valve of the exhaust pipe according to the engine boost value, engine speed, accelerator pedal opening, engine throttle opening, vehicle speed, exhaust temperature and other driving parameters.

At present, the exhaust pipe design of general vehicles is mainly used to save fuel and to make the exhaust volume smoother at high speeds. Both are designed as an adjustable valve construction to accommodate different driving conditions and to adjust the opening and sound of the exhaust pipe.

Therefore, there is a new patent No. M384927 "Exhaust Pipe with Controllable Ventilation Volume" announced by the Republic of China on July 21, 1999, which discloses that a body is an exhaust pipe that runs through one side of the pipe wall. A pivot hole is provided. A pivoting frame is corresponding to the corresponding pivot hole disposed on the outer wall of the body, and includes a main frame, a pivot member and a torsion spring. The main frame is correspondingly fixed on the pivot hole. The pivot member is pivotally coupled to the main frame and is provided with a securing aperture that aligns with the pivot hole of the body. The torsion spring is correspondingly disposed between the main frame and the pivot member to provide a pivotal returning force of the pivot member. A control valve member is disposed inside the body tube and includes a fixing seat, a pivot rod and a baffle. The fixing seat is a central hollow frame, which is fixedly coupled to the inner tube wall surface of the body. The pivot rod penetrates from the fixing hole of the pivoting member of the pivoting frame, and is pivotally correspondingly passed between the pivot hole of the body and the penetrating fixing seat, and is fixed to the pivoting member. The baffle corresponds to the inner shape of the body tube, and is fixedly disposed on the pivot rod and located in the fixed seat. In this way, the user can directly adjust the exhaust flow rate in the exhaust pipe manually according to different situations during use.

Although the patent predecessor utilizes a control valve member, it is possible to control the exhaust amount of the exhaust pipe according to different driving conditions. However, the control valve member is manually controlled, but since the driving condition of the vehicle is constantly changing, it is difficult for the user to surely grasp the correct use timing, and thus it is not ideal for use.

In addition, there is a patent for the "Exhaust Pressure Control Method and Apparatus" disclosed in the No. 200741092 of the Republic of China on November 1, 1996, which discloses: including a sensor, such as an oxygen sensor, exhaust pressure sensing , engine speed signal sensor, etc. The control box accepts the sensor signal and is calculated by the control box. The motor can accept the control box signal. The exhaust valve is installed at the exhaust pipe of the automobile or the locomotive, and the rotation of the output shaft of the motor is used to change the opening angle of the exhaust valve, thereby affecting the pressure and flow rate of the exhaust gas of the engine of the automobile or the locomotive, when the automobile or When the locomotive runs on the climbing section, the exhaust valve can be closed, which can generate and increase the output torque of the engine of the car or the locomotive early, and achieve fuel-saving purposes.

The patent's predecessor mainly controls the exhaust volume of the exhaust pipe according to the information of the engine speed. However, due to the variety of driving conditions, it is still difficult to cover the overall driving conditions based on the information of the engine speed alone, and it is not possible to automatically adjust the exhaust pipe to the optimal exhaust state, which is still difficult to use. Achieve idealization.

Therefore, in view of the current exhaust gas volume control structure of the exhaust pipe, it is not possible to automatically adjust to a better exhaust state or exhaust sound depending on the different driving conditions of the vehicle. Therefore, the present invention provides a vehicle exhaust valve control structure, comprising a control unit, which is connected to a vehicle, and the control unit is connected to a vehicle diagnostic unit on the vehicle for receiving from the vehicle diagnostic unit. Detecting at least one of the engine boost value, one engine speed, one accelerator pedal opening, one engine throttle opening, one vehicle speed, and one exhaust temperature, and correspondingly outputting one a solenoid valve is disposed on the vehicle, the solenoid valve signal is connected to the control unit for receiving or controlling the control signal of the control unit; a vacuum pressure pump is disposed on the vehicle The vacuum pressure pump is connected to the solenoid valve for outputting or interrupting outputting a vacuum pressure when the solenoid valve is opened or closed; a vacuum valve unit is disposed in one of the exhaust pipes of the vehicle, a vacuum valve unit is connected to the solenoid valve for receiving or interrupting receiving the vacuum pressure output by the vacuum pressure pump when the solenoid valve is opened or closed; the control The system detects the driving parameter of the engine boosting value, the engine speed, the accelerator pedal opening, the engine throttle opening, the vehicle speed, the exhaust temperature, or a combination thereof according to the vehicle diagnostic unit. However, it does not include a combination of driving parameters that simultaneously detect the engine speed and the speed of the vehicle.

The vacuum valve unit is provided with a push rod, and the push rod is connected to a valve piece. The valve piece is provided with a pivot shaft. The pivot shaft is pivotally disposed in the exhaust pipe, thereby controlling the rotation of the valve plate to control The exhaust pipe opens or changes the degree of closure.

The detection criterion of the engine supercharging value is 0.5 BAR. When the detection standard is exceeded, the vacuum valve unit is controlled to open the exhaust pipe, and when the set standard is not reached, the vacuum valve unit is controlled to change the exhaust. The degree of closure of the tube.

The detection speed of the engine speed is 4000 RPM. When the detection standard is exceeded, the vacuum valve unit is controlled to open the exhaust pipe. When the set standard is not reached, the vacuum valve unit is controlled to change the closing of the exhaust pipe. degree.

The detection threshold of the accelerator pedal opening degree is 40%. When the detection standard is exceeded, the vacuum valve unit is controlled to open the exhaust pipe, and when the set standard is not reached, the vacuum valve unit is controlled to change the exhaust. The degree of closure of the tube.

The engine throttle opening detection standard is 40%. When the detection standard is exceeded, the vacuum valve unit is controlled to open the exhaust pipe. When the set standard is not reached, the vacuum valve unit is controlled to change the row. The degree of closure of the trachea.

The detection standard of the vehicle speed is 120 kilometers per hour. When the detection standard is exceeded, the vacuum valve unit is controlled to open the exhaust pipe. When the set standard is not reached, the vacuum valve unit is controlled to change the exhaust. The degree of closure of the tube.

The detection temperature of the exhaust gas temperature is 400 ° C. When the detection standard is exceeded, the vacuum valve unit is controlled to open the exhaust pipe. When the set standard is not reached, the vacuum valve unit is controlled to change the exhaust pipe. The degree of closure.

Further, a remote control unit is provided to manually control the vacuum valve unit to change the degree of opening or closing of the exhaust pipe.

The above control to open the exhaust pipe means that the exhaust pipe is in a fully open state, and the control changes the degree of closing of the exhaust pipe, which means that the exhaust pipe is in any state from fully open to fully closed.

This creation has the following advantages:

1. The control unit of the present invention may be any one or a combination of engine boost value, engine speed, accelerator pedal opening, engine throttle opening, vehicle speed, exhaust temperature detected by the vehicle diagnostic unit. The driving parameter, but does not include a combination of driving parameters that simultaneously detect the engine speed and the speed of the vehicle, and controls the vacuum valve unit to automatically open or automatically close the exhaust pipe, so as to match the different driving conditions, so that the exhaust In accordance with the control requirements, the vehicle's power can be more performance, and the exhaust state or exhaust sound can be changed.

2. The creation department can utilize a remote control unit for the convenience of the driver to select a manual mode to control the vacuum valve unit to open or close the exhaust pipe, so that the state of the exhaust pipe can be manually changed according to different driving conditions. Get the most suitable vehicle power.

Please refer to the first figure. This creation can be implemented together with one of the vehicle diagnostic units (B) (On-Board Diagnostic Phase 2; OBD-II or OBD2). The system comprises a control unit (1), a solenoid valve (2), a vacuum pressure pump (3) and a vacuum valve unit (4), wherein:

A control unit (1) is provided on the vehicle (A). The control unit (1) is connected to the vehicle diagnostic unit (B) on the vehicle (A) for receiving the immediate driving condition of the vehicle (A) detected by the vehicle diagnostic unit (B) The system includes driving parameters such as engine boost value, engine speed, accelerator pedal opening, engine throttle opening, vehicle speed, exhaust temperature, etc., and correspondingly outputs a control signal.

A solenoid valve (2) is provided on the vehicle (A). The solenoid valve (2) is connected to the control unit (1) for opening or closing the control signal of the control unit (1).

A vacuum pressure pump (3) is provided on the vehicle (A). The vacuum pressure pump (3) is connected to the solenoid valve (2) for outputting or interrupting the output of a vacuum pressure when the solenoid valve (2) is opened or closed.

A vacuum valve unit (4) is provided in one of the exhaust pipes (A1) of the vehicle (A) (as shown in the second figure). The vacuum valve unit (4) is connected to the solenoid valve (2) for receiving or interrupting reception of the vacuum pressure pump (3) when the solenoid valve (2) is opened or closed. Vacuum pressure. The vacuum valve unit (4) is provided with a push rod (41) connected with a valve piece (42) for pivoting, the valve piece (42) is provided with a pivot shaft (43) The pivoting shaft (43) is pivoted in the passage of the exhaust pipe (A1), so that the exhaust pipe (A1) can be automatically opened or closed when the valve plate (42) is rotated. The present embodiment is applicable to one of the exhaust pipes (A1) of the double exhaust pipe, whereby the exhaust pipe (A1) can be in any state from fully open to fully closed. The present embodiment can also be used to control a single exhaust pipe (A1) to be in a different degree of closure, but the rotation angle of the valve plate (42) cannot be completely closed, and at least one gap must be reserved, that is, it cannot be in full The closed state is for the exhaust pipe (A1) to be normally exhausted.

As shown in the first figure, the present embodiment is used to detect different engine driving parameters such as engine engine boost value, engine speed, accelerator pedal opening, engine throttle opening, vehicle speed, exhaust temperature, and the like. The different control modes produced are described below.

1. Engine boost value control mode: mainly using the vehicle diagnostic unit (B) on the vehicle (A), the electronic control unit (ECU) on the vehicle (A) can be read, thereby An engine boost value of one of the vehicles (A) is detected. When the engine boost value reaches the set standard, a control signal is output to the solenoid valve (2) via the control unit (1) to control the solenoid valve (2) to open. When the solenoid valve (2) is opened, the vacuum pressure of the vacuum pressure pump (3) is passed through the solenoid valve (2) and output to the vacuum valve unit (4), thereby making the vacuum valve unit (4) The push rod (41) can pivot the valve plate (42), and can open the exhaust pipe (A1) (as shown in the third figure) for the exhaust pipe (A1) to increase the row Gas volume. Or control the degree of closure of the exhaust pipe (A1) (as shown in the fourth figure), so that the exhaust pipe (A1) reduces the amount of exhaust. The present embodiment can be configured to control the vacuum valve unit (4) to open the exhaust pipe (A1) [in the fully open state] when the engine boost value reaches 0.5 BAR is detected, but the When the 0.5 BAR is set, the vacuum valve unit (4) can be controlled to change the degree of closing of the exhaust pipe (A1) (in any state from fully open to fully closed), thereby changing the exhaust parameters, for example Exhaust sound.

2. Engine speed control mode: The vehicle diagnostic unit (B) on the vehicle (A) can also be used to read the driving computer on the vehicle (A), thereby detecting one of the vehicles (A) Engine speed. When the engine speed reaches the set standard, a control signal is output to the solenoid valve (2) via the control unit (1) to control the solenoid valve (2) to open. When the solenoid valve (2) is opened, the vacuum pressure of the vacuum pressure pump (3) is passed through the solenoid valve (2) and output to the vacuum valve unit (4), thereby making the vacuum valve unit (4) The push rod (41) can pivot the valve plate (42), and can open the exhaust pipe (A1) (as shown in the third figure) for the exhaust pipe (A1) to increase the exhaust the amount. Or control the degree of closure of the exhaust pipe (A1) (as shown in the fourth figure), so that the exhaust pipe (A1) reduces the amount of exhaust. The present embodiment can be configured to control the vacuum valve unit (4) to open the exhaust pipe (A1) [in the fully open state] when the engine speed is detected to reach 4000 RPM, but not reach the set 4000 RPM. At this time, the vacuum valve unit (4) can be controlled to change the degree of closing of the exhaust pipe (A1) [in any state from fully open to fully closed], thereby changing exhaust parameters such as exhaust sound.

3. Accelerator pedal opening control mode: The vehicle diagnostic unit (B) on the vehicle (A) can also be used to read the driving computer on the vehicle (A), thereby detecting the vehicle (A) One of the accelerator pedal opening degrees. When the accelerator pedal opening degree reaches the set standard, a control signal is output to the solenoid valve (2) via the control unit (1) to control the solenoid valve (2) to open. When the solenoid valve (2) is opened, the vacuum pressure of the vacuum pressure pump (3) is passed through the solenoid valve (2) and output to the vacuum valve unit (4), thereby making the vacuum valve unit (4) The push rod (41) can pivot the valve plate (42), and can open the exhaust pipe (A1) (as shown in the third figure) for the exhaust pipe (A1) to increase the exhaust the amount. Or control the degree of closure of the exhaust pipe (A1) (as shown in the fourth figure), so that the exhaust pipe (A1) reduces the amount of exhaust. The present embodiment can be configured to control the vacuum valve unit (4) to open the exhaust pipe (A1) [in the fully open state] when the accelerator pedal opening degree is detected to be 40%, but not When 40% is set, the vacuum valve unit (4) can be controlled to change the degree of closing of the exhaust pipe (A1) [in any state from fully open to fully closed], thereby changing the exhaust parameter, for example Exhaust sound.

4. Engine throttle opening control mode: The vehicle diagnostic unit (B) on the vehicle (A) can also be used to read the driving computer on the vehicle (A), thereby detecting the vehicle (A) One of the engine throttle opening degrees. When the engine throttle opening reaches the set standard, a control signal is output to the solenoid valve (2) via the control unit (1) to control the solenoid valve (2) to open. When the solenoid valve (2) is opened, the vacuum pressure of the vacuum pressure pump (3) is passed through the solenoid valve (2) and output to the vacuum valve unit (4), thereby making the vacuum valve unit (4) The push rod (41) can pivot the valve plate (42), and can open the exhaust pipe (A1) (as shown in the third figure) for the exhaust pipe (A1) to increase the exhaust the amount. Or control the degree of closure of the exhaust pipe (A1) (as shown in the fourth figure), so that the exhaust pipe (A1) reduces the amount of exhaust. The present embodiment can be configured to control the vacuum valve unit (4) to open the exhaust pipe (A1) [in a fully open state] when the engine throttle opening is detected to be 40%, but not to reach When 40% is set, the vacuum valve unit (4) can be controlled to change the degree of closing of the exhaust pipe (A1) (in any state from fully open to fully closed), thereby changing the exhaust parameter. For example, exhaust sound.

5. Vehicle speed control mode: The vehicle diagnostic unit (B) on the vehicle (A) can also be used to read the driving computer on the vehicle (A), thereby detecting one of the vehicles (A) Vehicle speed. When the vehicle speed reaches the set standard, a control signal is output to the solenoid valve (2) via the control unit (1) to control the solenoid valve (2) to open. When the solenoid valve (2) is opened, the vacuum pressure of the vacuum pressure pump (3) is passed through the solenoid valve (2) and output to the vacuum valve unit (4), thereby making the vacuum valve unit (4) The push rod (41) can pivot the valve plate (42), and can open the exhaust pipe (A1) (as shown in the third figure) for the exhaust pipe (A1) to increase the exhaust the amount. Or control the degree of closure of the exhaust pipe (A1) (as shown in the fourth figure), so that the exhaust pipe (A1) reduces the amount of exhaust. The present embodiment can be set such that when the speed of the vehicle is detected to reach 120 kilometers per hour, the vacuum valve unit (4) can be controlled to open the exhaust pipe (A1) [in the fully open state] without reaching the When the setting is 120 kilometers per hour, the vacuum valve unit (4) can be controlled to change the degree of closing of the exhaust pipe (A1) (in any state from fully open to fully closed), thereby changing the exhaust parameters. For example, exhaust sound.

6. Exhaust gas temperature control mode: The vehicle diagnostic unit (B) on the vehicle (A) can also be used to read the driving computer on the vehicle (A), thereby detecting the vehicle (A). An exhaust temperature. When the exhaust gas temperature reaches the set standard, a control signal is output to the solenoid valve (2) via the control unit (1) to control the solenoid valve (2) to open. When the solenoid valve (2) is opened, the vacuum pressure of the vacuum pressure pump (3) is passed through the solenoid valve (2) and output to the vacuum valve unit (4), thereby making the vacuum valve unit (4) The push rod (41) can pivot the valve plate (42), and can open the exhaust pipe (A1) (as shown in the third figure) for the exhaust pipe (A1) to increase the exhaust the amount. Or control the degree of closure of the exhaust pipe (A1) (as shown in the fourth figure), so that the exhaust pipe (A1) reduces the amount of exhaust. The present embodiment can be configured to control the vacuum valve unit (4) to open the exhaust pipe (A1) [in the fully open state] when the exhaust gas temperature is detected to reach 400 ° C, but does not reach the set At 400 ° C, the vacuum valve unit (4) can be controlled to change the degree of closure of the exhaust pipe (A1) [in any state from fully open to fully closed], thereby changing the exhaust parameters, such as Gas sounds.

Therefore, the present embodiment can select the engine boost value control mode, the engine speed control mode, the accelerator pedal opening control mode, the engine throttle opening control mode, the vehicle speed control mode, and the row according to different driving conditions. The detection of any one or any combination of the gas temperature control modes, however, does not include a combination of simultaneous detection of engine speed and vehicle speed.

Another embodiment of the present invention, as shown in the fifth figure, has the above-mentioned control unit (1), the solenoid valve (2), the vacuum pressure pump (3) and the vacuum valve unit (4), and cooperates The vehicle diagnostic unit (B) on the vehicle (A) is configured to automatically control the exhaust volume of the exhaust pipe (A1). The present embodiment further provides a remote control unit (5). The driver can choose to manually control the exhaust volume of the exhaust pipe (A1) for different driving conditions. When the remote control unit (5) is pressed, the above engine boost value control mode, engine speed control mode, accelerator pedal opening control mode, engine throttle opening control mode, vehicle speed control mode, and exhaust temperature can be cancelled. The mode of automatic control such as control mode is controlled by manual mode. When the remote control unit (5) is pressed, the control unit (1) is immediately controlled to output the control signal to the solenoid valve (2) to control the solenoid valve (2) to open. When the solenoid valve (2) is opened, the vacuum pressure of the vacuum pressure pump (3) is passed through the solenoid valve (2) and output to the vacuum valve unit (4), thereby making the vacuum valve unit (4) The push rod (41) can pivot the valve plate (42), and can open the exhaust pipe (A1) (as shown in the third figure) for the exhaust pipe (A1) to increase the exhaust the amount. Or control the degree of closure of the exhaust pipe (A1) (as shown in the fourth figure), so that the exhaust pipe (A1) reduces the amount of exhaust. In this way, the exhaust volume control of the exhaust pipe (A1) can be manually changed immediately. When the remote control unit (5) is pressed again, the manual control mode is canceled, and the original engine boost value control mode, the engine speed control mode, the accelerator pedal opening control mode, and the engine throttle opening are immediately restored. Automatic control mode such as degree control mode, vehicle speed control mode, and exhaust temperature control mode. Therefore, the convenient driver can choose to change the exhaust amount of the exhaust pipe (A1) by different control methods such as automatic or manual according to different driving conditions.

However, the above description is only two of the examples in this creation. When it is not possible to limit the scope of patent protection of this creation, the simple equivalent changes and replacements made by the scope of the patent application and the contents of the manual are all It shall remain within the scope of the protection covered by the scope of this patent application.

(1)‧‧‧Control unit
(2)‧‧‧ solenoid valve
(3) ‧‧‧Vacuum pressure pump
(4) ‧‧‧vacuum valve unit
(41) ‧‧‧Pushing rod
(42)‧‧‧ Valves
(43) ‧‧‧ pivot shaft
(5)‧‧‧Remote unit
(A) ‧ ‧ vehicles
(B)‧‧‧Vehicle diagnostic unit
(A1)‧‧‧Exhaust pipe

[Picture 1] is the block diagram of the creation of this creation.

[Second picture] is a three-dimensional appearance of the vacuum valve unit.

[Third image] is a schematic diagram of the creation of the exhaust pipe fully open.

[Fourth figure] is a schematic diagram of the creation of the exhaust pipe fully closed.

[Fifth Figure] is a block diagram of the construction of another embodiment of the present invention.

(1)‧‧‧Control unit

(2)‧‧‧ solenoid valve

(3) ‧‧‧Vacuum pressure pump

(4) ‧‧‧vacuum valve unit

(A) ‧ ‧ vehicles

(B)‧‧‧Vehicle diagnostic unit

(A1)‧‧‧Exhaust pipe

Claims (10)

A vehicle exhaust valve control structure includes: a control unit, which is coupled to a vehicle, the control unit is connected to a vehicle diagnostic unit on the vehicle for receiving and detecting from the vehicle diagnostic unit One of the vehicle's engine boost value, an engine speed, an accelerator pedal opening, an engine throttle opening, a vehicle speed, and an exhaust temperature, and at least one driving parameter is output, and a control signal is output correspondingly. a solenoid valve is disposed on the vehicle, the solenoid valve signal is connected to the control unit for receiving or receiving the control signal of the control unit; a vacuum pressure pump is disposed on the vehicle The vacuum pressure pump is connected to the solenoid valve for outputting or interrupting a vacuum pressure when the solenoid valve is opened or closed; a vacuum valve unit is disposed in an exhaust pipe of the vehicle, the vacuum valve The unit is connected to the solenoid valve for receiving or interrupting receiving the vacuum pressure output by the vacuum pressure pump when the solenoid valve is opened or closed; the control unit is The vehicle diagnostic unit detects a driving parameter of the engine boost value, the engine speed, the accelerator pedal opening degree, the engine throttle opening degree, the vehicle speed, the exhaust temperature, or a combination thereof, but It does not include a combination of driving parameters that simultaneously detect the engine speed and the speed of the vehicle. The vehicle exhaust valve control structure according to claim 1, wherein the vacuum valve unit is provided with a push rod, the push rod is connected to a valve piece, and the valve piece is provided with a pivot shaft, the pivot shaft system The pivoting tube is disposed in the exhaust pipe to control the opening of the exhaust pipe or to change the degree of closing. The vehicle exhaust valve control structure according to claim 1, wherein the detection standard of the engine supercharging value is 0.5 BAR, and when the detection standard is exceeded, the vacuum valve unit is controlled to open the exhaust pipe. When the set standard is not reached, the vacuum valve unit is controlled to change the degree of closing of the exhaust pipe. The vehicle exhaust valve control structure according to claim 1, wherein the engine speed detection standard is 4000 RPM, and when the detection standard is exceeded, the vacuum valve unit is controlled to open the exhaust pipe, but does not reach When the set standard is met, the vacuum valve unit is controlled to change the degree of closing of the exhaust pipe. The vehicle exhaust valve control structure according to claim 1, wherein the detection standard of the accelerator pedal opening degree is 40%, and when the detection standard is exceeded, the vacuum valve unit is controlled to open the exhaust pipe. When the set standard is not reached, the vacuum valve unit is controlled to change the degree of closing of the exhaust pipe. The vehicle exhaust valve control structure according to claim 1, wherein the engine throttle opening detection standard is 40%, and when the detection standard is exceeded, the vacuum valve unit is controlled to open the exhaust pipe. When the set standard is not reached, the vacuum valve unit is controlled to change the degree of closing of the exhaust pipe. The vehicle exhaust valve control structure according to claim 1, wherein the vehicle speed detection standard is 120 kilometers per hour, and when the detection standard is exceeded, the vacuum valve unit is controlled to open the exhaust pipe. When the set standard is not reached, the vacuum valve unit is controlled to change the degree of closing of the exhaust pipe. The vehicle exhaust valve control structure according to claim 1, wherein the exhaust gas temperature detection standard is 400 ° C. When the detection standard is exceeded, the vacuum valve unit is controlled to open the exhaust pipe, and When the set standard is not reached, the vacuum valve unit is controlled to change the degree of closing of the exhaust pipe. The vehicle exhaust valve control structure according to claim 1, further comprising a remote control unit for manually controlling the vacuum valve unit to change the degree of opening or closing of the exhaust pipe. The vehicle exhaust valve control structure according to any one of claims 1 to 9, wherein controlling the opening of the exhaust pipe means that the exhaust pipe is in a fully open state, and the control changes the closing of the exhaust pipe. The degree means that the exhaust pipe is in any state from fully open to fully closed.