An active stabilizer bar position detection mechanism and its detection method

Abstract

The present application discloses an active stabilizer bar position detection mechanism and its detection method, belonging to the field of stabilizer bar position detection. The key technical points of its technical solution include a position loop, a level detection device, a driving device, and a controller. The position loop is connected to the stabilizer bar and is used to generate a level signal. The level detection device is arranged near the position loop and is used to detect the level signal. The driving device is connected to the position loop and is used to drive the position loop to move. The controller is electrically connected to the driving device and the level detection device respectively, and is used to control the action of the driving device and receive the detection result, and judge the position of the stabilizer bar through the change of the level signal, so as to realize the accurate detection of the position of the stabilizer bar and achieve the effect of improving the accuracy and reliability of the stabilizer bar position detection.

Description

Technical Field

[0001] This application relates to the field of stabilizer bar position detection, and particularly to an active stabilizer bar position detection mechanism and its detection method. Background Art

[0002] At present, the automotive stabilizer bar system plays a crucial role in modern vehicles, mainly used to adjust the vehicle roll angle and improve driving stability. The traditional passive stabilizer bar system relies on the stiffness and deformation characteristics of the physical structure to achieve this function, but its response speed is slow and it is difficult to control precisely. In recent years, with the development of electronic technology and mechatronics technology, the active stabilizer bar system has gradually become a research hotspot. Such systems can quickly adjust the position of the stabilizer bar within a short time by introducing electromagnetic coil drive, thereby more effectively improving the vehicle's dynamic performance.

[0003] Existing active stabilizer bar systems usually use various sensors to detect the position of the stabilizer bar, commonly including Hall sensors, photoelectric sensors, etc. These sensors can monitor the position change of the stabilizer bar in real time and feed the data back to the control system. For example, the Hall sensor judges the position of the metal part through the change of the magnetic field, while the photoelectric sensor uses the occlusion or reflection of the light beam to achieve position detection.

[0004] However, the sensors in the existing technology are vulnerable to magnetic field interference and mechanical vibration, resulting in a decrease in detection accuracy. Especially under complex road conditions, this interference is more obvious, greatly reducing the robustness and reliability of the system. Therefore, how to achieve high-precision and high-reliability stabilizer bar position detection under complex working conditions is a technical problem that needs to be solved urgently. Summary of the Invention

[0005] In order to improve the accuracy and reliability of stabilizer bar position detection, the present invention provides an active stabilizer bar position detection mechanism and its detection method.

[0006] The present invention provides an active stabilizer bar position detection mechanism, adopting the following technical solution:

[0007] An active stabilizer bar position detection mechanism includes:

[0008] A position loop, connected to the stabilizer bar, for generating a level signal;

[0009] A level detection device, arranged near the position loop, for detecting the level signal of the current position of the position loop;

[0010] A driving device, connected to the position loop, for driving the position loop to move;

[0011] A controller, electrically connected to the driving device and the level detection device respectively, is configured to control the operation of the driving device and receive the detection result of the level detection device.

[0012] By adopting the above technical solution, during the vehicle driving process, the controller controls the connection and disconnection of the stabilizer bar by controlling the driving voltage. Meanwhile, the driving device is responsible for driving the position ring to move to cooperate with the action instruction of the controller. Since different positions of the position ring generate different level signals, the system can accurately identify the position of the stabilizer bar. The level detection device is used to detect the level signal of the current position of the position ring in real time, so as to achieve accurate and real-time detection of the position state of the active stabilizer bar. The controller receives the detection result of the level detection device to achieve closed-loop control, ensuring the stability and reliability of the system. Generally speaking, this technical solution simplifies the complexity of the traditional sensor detection method, reduces the system cost, improves the reliability and accuracy of position detection, and provides strong support for the stability and maneuverability during vehicle driving.

[0013] Preferably, a plurality of grooves and planes are arranged on the outer surface of the position ring. Among them, the level signal at the groove position is low level 0, and the level signal at the plane position is high level 1.

[0014] By adopting the above technical solution, the design of the grooves and planes makes the change of the level signal more obvious, thus improving the detection accuracy. The setting of low level 0 and high level 1 simplifies the hardware requirements of the level detection device, reduces the complexity and cost of the system. At different positions, different combinations of level signals can clearly distinguish the specific state of the stabilizer bar, enhancing the reliability of the system. This design not only improves the accuracy of position detection, but also can effectively identify the stuck state of the stabilizer bar under various working conditions, improving the robustness of the system.

[0015] The present invention also provides an active stabilizer bar position detection mechanism, including the following steps:

[0016] 1) Start the controller, apply a driving voltage to the stabilizer bar to cause a position change of the stabilizer bar, and at the same time make the driving device drive the position ring to move; the level detection device collects the level signal during the movement of the position ring; judge the position of the stabilizer bar according to the change of the level signal collected by the level detection device;

[0017] 2) Turn off the controller, remove the driving voltage of the stabilizer bar to cause a position change of the stabilizer bar, and at the same time make the driving device drive the position ring to move; the level detection device collects the level signal during the movement of the position ring; judge the position of the stabilizer bar according to the change of the level signal collected by the level detection device.

[0018] By adopting the above technical solutions, accurate and real-time detection of the position of the active stabilizer bar is achieved. Specifically: 1. When the controller is started and a driving voltage is applied to the stabilizer bar, the level detection device can collect the change of the level signal generated during the movement of the position loop in real time, so as to accurately judge the position state of the stabilizer bar, including the connection position, the window position, and the disconnection position. 2. After the driving voltage is removed, the level detection device can also confirm the position state of the stabilizer bar by collecting the change of the level signal. This two-way detection mechanism not only improves the reliability of detection, but also can timely feedback the actual position of the stabilizer bar under different working conditions, ensuring the stability and safety of the system.

[0019] Preferably, the level signals generated by the position loop are set to low level, high level, low level, and high level in sequence, corresponding to the connection position, the window position, the transition position, and the disconnection position of the stabilizer bar in sequence.

[0020] By adopting the above technical solutions, accurate classification of the position state of the active stabilizer bar is achieved. Specifically, by setting the specific level signal distribution on the position loop, the level states corresponding to different positions are clear and definite, so that when the controller detects the corresponding level change, the specific position of the stabilizer bar can be accurately judged. This method not only improves the reliability of position detection, but also simplifies the complexity of the system and reduces the cost. At the same time, this design method of level signals enhances the robustness of the system, reduces the possibility of misjudgment, and further improves the stability and safety during vehicle driving.

[0021] Preferably, before the controller is started and the driving voltage is applied to the stabilizer bar for the first time, if the level detection device collects a low level, the stabilizer bar is in the connection position;

[0022] If the level detection device collects a high level, the stabilizer bar is in the window position or the disconnection position.

[0023] By adopting the above technical solutions, the initial position state of the stabilizer bar can be judged when the controller is powered on for the first time. Specifically: when the level detection device collects a low level, it means that the stabilizer bar has returned to the connection position, and at this time the system can directly enter the normal working mode. When the level detection device collects a high level, it means that the stabilizer bar may be in the window position or the disconnection position. In these two cases, the specific position of the stabilizer bar needs to be further confirmed to ensure the safety and reliability of subsequent operations. This design effectively reduces the risk of misjudgment caused by uncertain initial positions, and improves the robustness and safety of the system.

[0024] Preferably, if the initial position of the stabilizer bar is in the connection position, the controller is started and a driving voltage is applied to the stabilizer bar, then the position conditions of the stabilizer bar include:

[0025] 1) If the level detection device collects zero upper edge interrupts and zero lower edge interrupts, the stabilizer bar is in a stuck state at the connected position;

[0026] 2) If the level detection device collects one upper edge interrupt and zero lower edge interrupts, the stabilizer bar is in a stuck state at the window position;

[0027] 3) If the level detection device collects two upper edge interrupts and one lower edge interrupt, the stabilizer bar is in the disconnected position;

[0028] Among them, the level state from high to low is the lower edge interrupt, and the level state from low to high is the upper edge interrupt.

[0029] By adopting the above technical solution, when the initial position of the stabilizer bar is at the connected position, starting the controller and applying a driving voltage to the stabilizer bar can accurately judge the specific position state of the stabilizer bar. Specifically: 1. If the level detection device collects zero upper edge interrupts and zero lower edge interrupts, it means that the stabilizer bar is stuck at the connected position due to friction or other reasons and fails to be successfully pulled open. In this case, the system can timely identify the stuck state, avoid ineffective continuous driving, and reduce energy consumption and the risk of potential equipment damage. 2. If the level detection device collects one upper edge interrupt and zero lower edge interrupts, it indicates that the stabilizer bar has moved from the connected position to the window position but is stuck at this position due to certain reasons (such as friction). This information helps the system to further take measures, such as increasing the driving voltage or extending the driving time, to ensure that the stabilizer bar reaches the target position smoothly. 3. If the level detection device collects two upper edge interrupts and one lower edge interrupt, it means that the stabilizer bar has successfully moved from the connected position to the disconnected position. This state confirmation mechanism improves the reliability of the system, ensures that the vehicle can accurately adjust the position of the stabilizer bar when needed, thereby enhancing driving safety and comfort.

[0030] Preferably, if the initial position of the stabilizer bar is at the disconnected position, closing the controller and removing the driving voltage of the stabilizer bar, the position conditions of the stabilizer bar include:

[0031] 1) If the level detection device collects zero lower edge interrupts and zero lower edge interrupts, the stabilizer bar is in a stuck state at the disconnected position;

[0032] 2) If the level detection device collects one lower edge interrupt and one upper edge interrupt, the stabilizer bar is at the window position;

[0033] 3) If the level detection device collects two lower edge interrupts and one upper edge interrupt, the stabilizer bar is at the connected position;

[0034] Among them, the level state from high to low is the lower edge interrupt, and the level state from low to high is the upper edge interrupt.

[0035] By adopting the above technical solution, the position state of the active stabilizer bar can be accurately and real-time detected. Specifically: 1. When the initial position of the stabilizer bar is at the disconnection position, after closing the controller and removing the driving voltage, if the level detection device collects zero lower edge interruptions and zero upper edge interruptions, it indicates that the stabilizer bar is in a stuck state at the disconnection position. In this case, the system can promptly identify that the stabilizer bar cannot be normally reset, and thus take corresponding measures to avoid further damage. 2. If the level detection device collects one lower edge interruption and one upper edge interruption, it indicates that the stabilizer bar has moved from the disconnection position to the window position. During this process, the system accurately judges the position change of the stabilizer bar through the change of the level signal, ensuring the robustness and reliability of the system. 3. If the level detection device collects two lower edge interruptions and one upper edge interruption, it indicates that the stabilizer bar has successfully moved from the disconnection position to the connection position. This process also relies on the accurate detection of the level signal, ensuring that the stabilizer bar can quickly return to the connection state when needed, improving the driving stability and safety of the vehicle.

[0036] In summary, through the accurate detection of the level signal, this technical solution effectively solves the problems of low position detection accuracy and poor robustness in the prior art, and improves the reliability and performance of the active stabilizer bar system.

[0037] Preferably, if the initial position of the stabilizer bar is at the window position, after closing the controller and removing the driving voltage of the stabilizer bar, the position conditions of the stabilizer bar include:

[0038] 1) If the level detection device collects zero lower edge interruptions, the stabilizer bar is in a stuck state at the window position;

[0039] 2) If the level detection device collects one lower edge interruption, the stabilizer bar is in the connection position;

[0040] If the initial position of the stabilizer bar is at the window position, after starting the controller and applying the driving voltage to the stabilizer bar, the position conditions of the stabilizer bar include:

[0041] 1) If the level detection device collects zero lower edge interruptions and zero lower edge interruptions, the stabilizer bar is in a stuck state at the window position;

[0042] 2) If the level detection device collects one lower edge interruption and one lower edge interruption, the stabilizer bar is in the disconnection position;

[0043] Wherein, the level state from high to low is the lower edge interruption, and the level state from low to high is the upper edge interruption.

[0044] By adopting the above technical solution, when the stabilizer bar is in the window position, by analyzing the number of falling edge interrupts collected by the level detection device, the specific position state of the stabilizer bar can be accurately judged. Specifically: 1. When the initial position is in the window position and the controller is turned off and the driving voltage is removed: If no falling edge interrupt is detected, it means that the stabilizer bar is stuck at the window position due to friction or other reasons and cannot return to the connection position normally; if one falling edge interrupt is detected, it means that the stabilizer bar has successfully returned to the connection position. 2. When the initial position is in the window position and the controller is started and the driving voltage is applied to the stabilizer bar: If no falling edge interrupt is detected, it means that the stabilizer bar is stuck at the window position due to friction or other reasons and cannot be disconnected normally; if one falling edge interrupt is detected, it means that the stabilizer bar has successfully reached the disconnection position.

[0045] Preferably, it further includes a time module, and the time module includes a driving time and a waiting time. The driving time is used to apply a driving voltage to the stabilizer bar for T seconds, and the waiting time is used to remove the driving voltage of the stabilizer bar and then wait for t seconds.

[0046] By adopting the above technical solution, the introduction of the time module significantly improves the robustness and reliability of the active stabilizer bar position detection. The specific effects are as follows: By setting the driving time to T seconds, the problem of electromagnetic coil heating caused by long-term high-voltage driving is avoided, and the service life of the system is extended. The setting of the waiting time of t seconds allows the system to further confirm the position state of the stabilizer bar after removing the driving voltage, reducing the possibility of misjudgment, especially in the stuck state, and ensuring the accuracy of the position detection.

[0047] Preferably, the usage steps of the time module in the detection method of the active stabilizer bar position detection mechanism include:

[0048] Step A: When the stabilizer bar is in the connection position or the window position, start the controller and apply a driving voltage to the stabilizer bar for a seconds until the stabilizer bar reaches the disconnection position or reaches T seconds;

[0049] If the stabilizer bar reaches the disconnection position, the controller switches to the holding voltage mode;

[0050] If after applying the driving voltage to the stabilizer bar for T seconds, the termination position of the stabilizer bar is in the connection position or the window position, turn off the controller, withdraw the driving voltage of the stabilizer bar, enter the waiting time, and after the waiting time ends, judge whether the vehicle speed is greater than 0:

[0051] ① If the vehicle speed is greater than zero, return to step A;

[0052] ② If the vehicle speed is 0, wait for the vehicle speed to be greater than 0 and enter step ①.

[0053] By adopting the above technical solutions, it is possible to effectively avoid the jamming problems caused by friction and abnormal angles during the driving process of the stabilizer bar, and improve the robustness and reliability of the system. Specifically: by setting up a time module, the system can better judge the true position of the stabilizer bar, reducing misjudgments caused by environmental noise and mechanical vibrations. During the application of the driving voltage, if the stabilizer bar fails to complete the action within the specified time, the system will stop power supply in a timely manner, thus avoiding the heating problem caused by long-term high-voltage driving. Only when the stabilizer bar is indeed in the disconnected position will the system switch to the holding voltage mode, ensuring the safe driving of the vehicle. Through the continuously cycling time module mechanism, the system can restore the normal working state of the stabilizer bar in the shortest time, improving the response speed and efficiency of the entire system.

[0054] In summary, the present invention has the following beneficial effects:

[0055] During the driving process of the vehicle, the controller controls the connection and disconnection of the stabilizer bar by controlling the driving voltage. At the same time, the driving device is responsible for driving the position ring to move, cooperating with the action instructions of the controller. Since different positions of the position ring generate different level signals, the system can accurately identify the position of the stabilizer bar. By detecting the level signal of the current position of the position ring in real time through the level detection device, the accurate and real-time detection of the position state of the active stabilizer bar is realized. The controller receives the detection results of the level detection device to achieve closed-loop control, ensuring the stability and reliability of the system. Generally speaking, this technical solution simplifies the complexity of the traditional sensor detection method, reduces the system cost, improves the reliability and accuracy of position detection, and provides strong support for the stability and controllability during the driving process of the vehicle. Description of the Drawings

[0056] Figure 1 is an overall structural schematic diagram of an active stabilizer bar position detection mechanism.

[0057] Figure 2 is a position schematic diagram of the position ring and the level detection device.

[0058] Figure 3 is a flowchart of a detection method for an active stabilizer bar position detection mechanism.

[0059] Figure 4 is a flowchart of the use of the time module in the detection method of the active stabilizer bar position detection mechanism.

[0060] Description of the Reference Numerals:

[0061] 1. Stabilizer bar; 2. Position ring; 3. Level detection device; 4. Driving device; 5. Controller; 6. Driving coil; 7. Spring. Detailed Embodiments

[0062] In order to enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this specification. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments.

[0063] In the description of the embodiments of this application, words such as "for example" or "for instance" are used to give examples, illustrations or explanations. Any embodiment or design solution described as "for example" or "for instance" in the embodiments of this application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Rather, the use of words such as "for example" or "for instance" is intended to present relevant concepts in a specific manner.

[0064] In the description of the embodiments of this application, the meaning of the term "a plurality of" refers to two or more. For example, a plurality of systems refers to two or more systems, and a plurality of screen terminals refers to two or more screen terminals. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the technical features indicated. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. The terms "include", "comprise", "have" and their variants all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0065] Embodiment 1

[0066] An active stabilizer bar position detection mechanism, referring to Figure 1 , includes a position loop 2, a level detection device 3, a driving device 4 and a controller 5. The position loop 2 is connected to the stabilizer bar 1 and is used to generate a level signal. The level detection device 3 is arranged near the position loop 2 and is used to detect the level signal of the current position of the position loop 2. The driving device 4 is connected to the position loop 2 and is used to drive the position loop 2 to move. Both the driving device 4 and the level detection device 3 are electrically connected to the controller 5, and the controller 5 is used to control the operation of the driving device 4 and receive the detection result of the level detection device 3.

[0067] Referring to Figure 2 , a plurality of grooves and planes are provided on the outer surface of the position loop 2. Among them, the level signal at the groove position is a low level 0, and the level signal at the plane position is a high level 1.

[0068] Referring to Figure 1 , the driving device 4 can drive the position loop 2 to move, which is a prior art, so it will not be described in detail in this embodiment.

[0069] Referring to Figure 1, a drive coil 6 and a spring 7 are installed on the stabilizer bar 1. When the controller 5 applies a drive voltage to the drive coil 6, the stabilizer bar 1 can be disconnected. When the controller 5 removes the drive voltage, the spring 7 can drive the stabilizer bar 1 to reset, so that the stabilizer bar 1 resumes the connected state.

[0070] The working principle of this embodiment is as follows: The accurate and real-time detection of the position state of the active stabilizer bar 1 is achieved through a simplified level input method. The groove and plane design on the position loop 2 enables the level signal to change with the position of the stabilizer bar 1, and the level detection device 3 can efficiently capture these changes. The controller 5 can accurately judge the position of the stabilizer bar 1 by analyzing the change of the level signal. This method not only reduces the complexity and cost of the system, but also improves the reliability and accuracy of position detection, providing strong support for improving the stability and controllability during vehicle driving.

[0071] Embodiment 2

[0072] A detection method for a position detection mechanism of an active stabilizer bar, referring to Figure 3 , includes the following steps:

[0073] 1) Start the controller 5, apply a drive voltage to the stabilizer bar 1 to cause a position change of the stabilizer bar 1, and at the same time make the drive device 4 drive the position loop 2 to move; the level detection device 3 collects the level signal during the movement of the position loop 2; judge the position of the stabilizer bar 1 according to the change of the level signal collected by the level detection device 3;

[0074] 2) Turn off the controller 5, remove the drive voltage of the stabilizer bar 1 to cause a position change of the stabilizer bar 1, and at the same time make the drive device 4 drive the position loop 2 to move; the level detection device 3 collects the level signal during the movement of the position loop 2; judge the position of the stabilizer bar 1 according to the change of the level signal collected by the level detection device 3.

[0075] When the controller 5 is started and a drive voltage is applied to the stabilizer bar 1, the level detection device 3 can collect the change of the level signal generated during the movement of the position loop 2 in real time, so as to accurately judge the position state of the stabilizer bar 1, including the connection position, the window position and the disconnection position. After removing the drive voltage, the level detection device 3 can also further confirm the position state of the stabilizer bar 1 by collecting the change of the level signal. This two-way detection mechanism not only improves the reliability of detection, but also can timely feedback the actual position of the stabilizer bar 1 under different working conditions to ensure the stability and safety of the system.

[0076] Referring to Figure 2 and Figure 3 , the level signals generated by the position loop 2 are set as low level, high level, low level, high level in sequence, corresponding to the connection position, window position, transition position, disconnection position of the stabilizer bar 1 in sequence.

[0077] Among them, the window position is the connection state at the optimal angle when the stabilizer bar 1 is connected. The transition position is used to separate the level states of the window position and the disconnection position.

[0078] By setting the specific level signal distribution on the position loop 2, the level states corresponding to different positions are made clear and distinct, so that when the controller 5 detects the corresponding level change, the specific position of the stabilizer bar 1 can be accurately judged. This method not only improves the reliability of position detection, but also simplifies the complexity of the system and reduces the cost.

[0079] Refer to Figure 2 and Figure 3 , the level state from high to low is the lower edge interruption, and the level state from low to high is the upper edge interruption.

[0080] Refer to Figure 2 and Figure 3 , when starting the controller 5, before applying the driving voltage to the stabilizer bar 1 for the first time, if the level detection device 3 collects a low level, then the stabilizer bar 1 is in the connected position;

[0081] If the level detection device 3 collects a high level, then the stabilizer bar 1 is in the window position or the disconnection position.

[0082] Refer to Figure 2 and Figure 3 , if the initial position of the stabilizer bar 1 is in the connected position, start the controller 5 and apply the driving voltage to the stabilizer bar 1, then the position conditions of the stabilizer bar 1 include:

[0083] 1) If the level detection device 3 collects zero upper edge interruptions and zero lower edge interruptions, then the stabilizer bar 1 is in the stuck state at the connected position;

[0084] 2) If the level detection device 3 collects one upper edge interruption and zero lower edge interruptions, then the stabilizer bar 1 is in the stuck state at the window position;

[0085] 3) If the level detection device 3 collects two upper edge interruptions and one lower edge interruption, then the stabilizer bar 1 is in the disconnection position.

[0086] Refer to Figure 2 and Figure 3 , if the initial position of the stabilizer bar 1 is in the disconnection position, turn off the controller 5 and remove the driving voltage of the stabilizer bar 1, then the position conditions of the stabilizer bar 1 include:

[0087] 1) If the level detection device 3 collects zero lower edge interruptions and zero lower edge interruptions, then the stabilizer bar 1 is in the stuck state at the disconnection position;

[0088] 2) If the level detection device 3 collects one falling edge interruption and one rising edge interruption, the stabilizer bar 1 is in the window position;

[0089] 3) If the level detection device 3 collects two falling edge interruptions and one rising edge interruption, the stabilizer bar 1 is in the connection position.

[0090] Refer to Figure 2 and Figure 3 , if the initial position of the stabilizer bar 1 is in the window position, turn off the controller 5, remove the driving voltage of the stabilizer bar 1, then the position conditions of the stabilizer bar 1 include:

[0091] 1) If the level detection device 3 collects zero falling edge interruptions, the stabilizer bar 1 is in the stuck state at the window position;

[0092] 2) If the level detection device 3 collects one falling edge interruption, the stabilizer bar 1 is in the connection position.

[0093] Refer to Figure 2 and Figure 3 , if the initial position of the stabilizer bar 1 is in the window position, start the controller 5, apply a driving voltage to the stabilizer bar 1, then the position conditions of the stabilizer bar 1 include:

[0094] 1) If the level detection device 3 collects zero falling edge interruptions and zero falling edge interruptions, the stabilizer bar 1 is in the stuck state at the window position;

[0095] 2) If the level detection device 3 collects one falling edge interruption and one falling edge interruption, the stabilizer bar 1 is in the disconnected position.

[0096] Refer to Figure 4 , the detection method of the active stabilizer bar position detection mechanism is also provided with a time module, and the time module includes a driving time and a waiting time. The driving time is used to apply a driving voltage to the stabilizer bar 1 for T seconds. The waiting time is used to remove the driving voltage of the stabilizer bar 1 and then wait for t seconds.

[0097] Refer to Figure 4 , the usage steps of the time module in the detection method of the active stabilizer bar position detection mechanism include:

[0098] Step A: When the stabilizer bar 1 is in the connection position or the window position, start the controller 5, apply a driving voltage to the stabilizer bar 1 for a seconds until the stabilizer bar 1 reaches the disconnected position or reaches T seconds;

[0099] If the stabilizer bar 1 reaches the disconnected position, the controller 5 switches to the holding voltage mode;

[0100] If after applying a driving voltage to the stabilizer bar 1 for T seconds, the termination position of the stabilizer bar 1 is at the connection position or the window position, turn off the controller 5, withdraw the driving voltage of the stabilizer bar 1, enter the waiting time, and after the waiting time ends, determine whether the vehicle speed is greater than 0:

[0101] ① If the vehicle speed is greater than zero, return to step A;

[0102] ② If the vehicle speed is 0, wait for the vehicle speed to be greater than 0 and enter step ①.

[0103] The working principle of this application is as follows: According to the information of the initial position, combined with the change of the level signal generated during the movement of the position loop 2 collected by the level detection device 3 received by the controller 5 in real time, the position state of the stabilizer bar 1 can be accurately judged, including the connection position, the window position and the disconnection position.

[0104] By introducing a time module, the jamming problem of the stabilizer bar 1 caused by friction or other factors is effectively solved. The design of the time module can not only confirm the authenticity of the position change, but also prevent overheating problems under high-voltage drive. This design improves the robustness and reliability of the entire system, ensuring the safety and stability of vehicle driving.

[0105] The embodiments of this specific implementation manner are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. An active stabilizer bar position detection method, characterized in that, The detection mechanism used in the active stabilizer bar position detection method includes: A position loop (2), connected to the stabilizer bar (1), for generating a level signal; A level detection device (3), arranged near the position loop (2), for detecting the level signal of the current position of the position loop (2); A driving device (4), connected to the position loop (2), for driving the position loop (2) to move; A controller (5), electrically connected to the driving device (4) and the level detection device (3) respectively, for controlling the operation of the driving device (4) and receiving the detection result of the level detection device (3); The active stabilizer bar position detection method includes the following steps: 1) Start the controller (5), apply a driving voltage to the stabilizer bar (1) to cause a position change of the stabilizer bar (1), and at the same time drive the driving device (4) to drive the position loop (2) to move; the level detection device (3) collects the level signal during the movement of the position loop (2); judge the position of the stabilizer bar (1) according to the change of the level signal collected by the level detection device (3); 2) Turn off the controller (5), remove the driving voltage of the stabilizer bar (1) to cause a position change of the stabilizer bar (1), and at the same time drive the driving device (4) to drive the position loop (2) to move; the level detection device (3) collects the level signal during the movement of the position loop (2); judge the position of the stabilizer bar (1) according to the change of the level signal collected by the level detection device (3).

2. The active stabilizer bar position detection method according to claim 1, characterized in that A plurality of grooves and planes are arranged on the outer surface of the position loop (2), wherein the level signal at the groove position is a low level 0, and the level signal at the plane position is a high level 1.

3. The active stabilizer bar position detection method according to claim 1, characterized in that, The level signals generated by the position loop (2) are successively set as low level, high level, low level, high level, corresponding to the connection position, window position, transition position, and disconnection position of the stabilizer bar (1) in sequence.

4. The active stabilizer bar position detection method according to claim 3, characterized in that, When starting the controller (5) and before applying the driving voltage to the stabilizer bar (1) for the first time, if the level detected by the level detection device (3) is a low level, then the stabilizer bar (1) is in the connection position; If the level detected by the level detection device (3) is a high level, then the stabilizer bar (1) is in the window position or the disconnection position.

5. The active stabilizer bar position detection method according to claim 4, characterized in that, If the initial position of the stabilizer bar (1) is in the connection position and the controller (5) is started to apply a driving voltage to the stabilizer bar (1), the position conditions of the stabilizer bar (1) include: 1) If the level detection device (3) collects zero rising edge interruptions and zero falling edge interruptions, then the stabilizer bar (1) is in a stuck state at the connection position; 2) If the level detection device (3) collects one rising edge interruption and zero falling edge interruptions, then the stabilizer bar (1) is in a stuck state at the window position; 3) If the level detection device (3) collects two rising edge interruptions and one falling edge interruption, then the stabilizer bar (1) is in the disconnection position; Among them, the level state from high to low is a falling edge interruption, and the level state from low to high is a rising edge interruption.

6. The active stabilizer bar position detection method according to claim 4, wherein If the initial position of the stabilizer bar (1) is in the disconnection position and the controller (5) is turned off to remove the driving voltage of the stabilizer bar (1), the position conditions of the stabilizer bar (1) include: 1) If the level detection device (3) collects zero lower edge interruptions and zero lower edge interruptions, the stabilizer bar (1) is in a stuck state at the disconnected position; 2) If the level detection device (3) collects one lower edge interruption and one upper edge interruption, the stabilizer bar (1) is in the window position; 3) If the level detection device (3) collects two lower edge interruptions and one upper edge interruption, the stabilizer bar (1) is in the connected position; Among them, the level state from high to low is the lower edge interruption, and the level state from low to high is the upper edge interruption.

7. A method for detecting the position of an active stabilizer bar according to claim 4, characterized in that If the initial position of the stabilizer bar (1) is in the window position, the controller (5) is turned off, and the driving voltage of the stabilizer bar (1) is removed, the position conditions of the stabilizer bar (1) include: 1) If the level detection device (3) collects zero lower edge interruptions, the stabilizer bar (1) is in a stuck state at the window position; 2) If the level detection device (3) collects one lower edge interruption, the stabilizer bar (1) is in the connected position; If the initial position of the stabilizer bar (1) is in the window position, the controller (5) is started, and a driving voltage is applied to the stabilizer bar (1), the position conditions of the stabilizer bar (1) include: 1) If the level detection device (3) collects zero lower edge interruptions and zero lower edge interruptions, the stabilizer bar (1) is in a stuck state at the window position; 2) If the level detection device (3) collects one lower edge interruption and one lower edge interruption, the stabilizer bar (1) is in the disconnected position; among them, the level state from high to low is the lower edge interruption, and the level state from low to high is the upper edge interruption.

8. The active stabilizer bar position detection method according to claim 4, characterized in that It also includes a time module, and the time module includes a driving time and a waiting time. The driving time is used to apply a driving voltage to the stabilizer bar (1) for T seconds, and the waiting time is used to remove the driving voltage of the stabilizer bar (1) and then wait for t seconds.

9. The active stabilizer bar position detection method according to claim 8, characterized in that, The usage steps of the time module in the active stabilizer bar position detection method include: Step A: When the stabilizer bar (1) is in the connected position or the window position, the controller (5) is started, and a driving voltage is applied to the stabilizer bar (1) for a seconds until the stabilizer bar (1) reaches the disconnected position or reaches T seconds; If the stabilizer bar (1) reaches the disconnected position, the controller (5) switches to the holding voltage mode; If after applying the driving voltage to the stabilizer bar (1) for T seconds, the terminal position of the stabilizer bar (1) is in the connected position or the window position, the controller (5) is turned off, the driving voltage of the stabilizer bar (1) is withdrawn, and the waiting time is entered. After the waiting time ends, it is judged whether the vehicle speed is greater than 0: ① If the vehicle speed is greater than zero, return to Step A; ② If the vehicle speed is 0, wait for the vehicle speed to be greater than 0 and enter Step ①.

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