Automobile stabilizer bar controller

Abstract

The utility model discloses an automobile stabilizer bar controller, which comprises a power supply circuit, a main control chip circuit, a boost switching circuit, a boost output circuit, a buck output circuit, a relay switching circuit, an interface circuit and a CAN (controller area network) communication circuit, the boost output circuit, the buck output circuit and the relay switching circuit are connected with the power supply circuit, the boost switching circuit and the relay switching circuit are electrically connected with the main control chip circuit, the boost switching circuit is electrically connected with the boost output circuit, and the relay switching circuit is electrically connected with the boost output circuit, the buck output circuit and the interface circuit; the interface circuit is used for being connected with the electromagnetic coil, and the CAN communication circuit is electrically connected with the main control chip and the interface circuit. The voltage can be flexibly adjusted, the state of the electromagnetic coil is changed, and the separation and combination efficiency of the stabilizer bar is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of controllers, in particular to an automobile stabilizer bar controller. Background Art

[0002] Stabilizer bar is an important safety component of automobile independent suspension system. Traditional stabilizer bar is passive stabilizer bar, which is an integral rod body and cannot be adjusted in real time according to driving status. With the development of technology, active stabilizer bar has emerged. Active stabilizer bar is a detachable stabilizer bar, including a left stabilizer bar component, a right stabilizer bar component, a sliding sleeve and an electromagnetic coil. The power supply of the electromagnetic coil can be adjusted in real time through the electronic control system, thereby driving the sliding sleeve to move, so that the left stabilizer bar component and the right stabilizer bar component are embedded in the sliding sleeve to present a combined state or the left stabilizer bar component and the right stabilizer bar component are separated from the sliding sleeve to present a separated state. The separation and combination of the left stabilizer bar component and the right stabilizer bar component can realize the switching of the automobile between two-wheel drive and four-wheel drive to adapt to different driving needs.

[0003] However, the existing active stabilizer bar control system has deficiencies in driving voltage and cannot effectively and flexibly adjust the voltage, thereby affecting the driving of the electromagnetic coil on the sliding sleeve and limiting the separation and engagement efficiency of the stabilizer bar. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a vehicle stabilizer bar controller that can flexibly adjust the voltage, change the state of the electromagnetic coil, and improve the separation and connection efficiency of the stabilizer bar.

[0005] The utility model provides an automobile stabilizer bar controller, comprising a power supply circuit, a main control chip circuit, a boost switching circuit, a boost output circuit, a buck output circuit, a relay switching circuit and an interface circuit, wherein the power supply circuit is connected to an external power supply through a connector, the boost output circuit, the buck output circuit and the relay switching circuit are connected to the power supply circuit, the power supply circuit is used to provide an original voltage to the boost output circuit, the buck output circuit and the relay switching circuit, the boost switching circuit and the relay switching circuit are both electrically connected to the main control chip circuit, the boost switching circuit is electrically connected to the boost output circuit, and is used to enable the boost output circuit to boost the original voltage and output a boosted voltage, the buck output circuit is used to buck the original voltage and output a bucked voltage, the relay switching circuit is electrically connected to the boost output circuit, the buck output circuit and the interface circuit, and is used to output 0V voltage, original voltage, boost voltage and buck voltage and input the output voltage to the interface circuit; the interface circuit is used to be connected to an electromagnetic coil.

[0006] Preferably, the power circuit is electrically connected to an external power supply through a KL30 port.

[0007] Preferably, the step-down output circuit, the step-up output circuit and the relay switching circuit are all connected to the power supply circuit through the KL30-1 port.

[0008] Preferably, the relay switching circuit is electrically connected to the boost output circuit through a DRVUPOUT port, the relay switching circuit is electrically connected to the buck output circuit through a DRVDOWNOUT port, and the relay switching circuit is electrically connected to the interface circuit through a DRVI-OUT port.

[0009] Preferably, the model of the connector of the interface circuit is 776267-1, and pins 1 and 2 of the connector are used to connect the electromagnetic coil.

[0010] Preferably, the boost switching circuit is electrically connected to the boost output circuit via a STEPUP-FB port.

[0011] Preferably, the model of the main control chip of the main control chip circuit is GD32A503VDT3, the boost switching circuit is electrically connected to pins 45 and 46 of the main control chip, and the relay switching circuit is electrically connected to pin 49 of the main control chip.

[0012] Preferably, it further includes a CAN communication circuit, which is electrically connected to pins 52, 53 and 54 of the main control chip, and is electrically connected to pins 13 and 14 of the interface circuit.

[0013] Preferably, the original voltage is 12V, the boost voltage is 14V, 16V, or 18V, and the step-down voltage is 5V;

[0014] When the relay switching circuit chooses to output 0V voltage, the electromagnetic coil is not energized, which is used to combine the left part of the stabilizer bar with the right part of the stabilizer bar; when the relay switching circuit chooses to output the original voltage or the boosted voltage, the electromagnetic coil is energized, which is used to separate the left part of the stabilizer bar from the right part of the stabilizer bar; when the relay switching circuit chooses to output the stepped-down voltage, the electromagnetic coil is energized, which is used to keep the left part of the stabilizer bar and the right part of the stabilizer bar separated or combined.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The automobile stabilizer bar controller of the present invention provides 12V voltage (original voltage) to the power supply circuit through the socket. The power supply circuit inputs 12V voltage to the boost output circuit, the buck output circuit and the relay switching circuit through the port connection. The boost switching circuit makes the boost output circuit boost and output 14V, 16V, 18V voltage (boost voltage), and the buck output circuit buck and output 5V voltage (buck voltage). The main control chip circuit can control the relay switching circuit to automatically select the output voltage according to the driving demand. The relay switching circuit can select to output 0V, 5V, 12V, 14V, 16V, 18V voltage, and then apply the voltage to the electromagnetic coil through the interface circuit. When the relay is switched on, the voltage is automatically applied to the electromagnetic coil. When the switching circuit chooses to output 0V voltage, the electromagnetic coil is not energized and does not generate magnetic force, causing the stabilizer bar to be combined; when the relay switching circuit chooses to output 12V, 14V, 16V or 18V voltage, the energized voltage of the electromagnetic coil is 12V, 14V, 16V or 18V, and the magnetic force of the electromagnetic coil is enhanced, causing the stabilizer bar to separate; when the relay switching circuit chooses to output 5V voltage, the magnetic force of the electromagnetic coil keeps the stabilizer bar in a separated or combined state; the utility model can automatically switch the output voltage through the control of the main control chip to achieve rapid adjustment of the energized voltage of the electromagnetic coil, thereby controlling the separation and combination of the stabilizer bar, improving the flexibility of voltage adjustment, and improving the efficiency of separation and combination of the stabilizer bar.

[0017] It should be understood that the contents described in the summary of the utility model are not intended to limit the key or important features of the embodiments of the utility model, nor are they intended to limit the scope of the utility model. Other features of the utility model will become easier to understand through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments made with reference to the following drawings:

[0019] Figure 1 This is a structural block diagram of an automobile stabilizer bar controller provided by an embodiment of the utility model;

[0020] Figure 2 This is the circuit schematic diagram of the main control chip;

[0021] Figure 3 This is the power supply circuit schematic;

[0022] Figure 4 Schematic diagram of boost output circuit;

[0023] Figure 5 This is the schematic diagram of the boost switching circuit;

[0024] Figure 6 This is the schematic diagram of the buck output circuit;

[0025] Figure 7 This is the schematic diagram of the relay switching circuit;

[0026] Figure 8 This is the schematic diagram of the interface circuit;

[0027] Figure 9 This is the schematic diagram of the CAN communication circuit. DETAILED DESCRIPTION

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are intended only to illustrate the relevant utility model and are not intended to limit the scope of the utility model. It should also be noted that, for ease of description, only the portions relevant to the utility model are shown in the accompanying drawings.

[0029] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] Please refer to Figures 1 to 9 The embodiment of the utility model provides a vehicle stabilizer bar controller for controlling the engagement and disconnection of an active vehicle stabilizer bar; the active stabilizer bar controlled by the controller of the present application comprises a left stabilizer bar component and a right stabilizer bar component, wherein the two adjacent ends of the left stabilizer bar component and the right stabilizer bar component are respectively connected to a left gear hub and a right gear hub by a spline, and the ends of the left gear hub and the right gear hub are arranged opposite to each other, and the electromagnetic coil is fixedly sleeved on the left stabilizer bar component, and the outer sliding sleeve of the left gear hub and the right gear hub is provided with a sliding sleeve. The sliding sleeve can connect the left gear hub and the right gear hub together, and a spring is provided on the side of the sliding sleeve away from the electromagnetic coil. When the electromagnetic coil is not energized, the elastic force of the spring causes the sliding sleeve to be sleeved on the outer side of the left gear hub and the right gear hub, so that the left stabilizer bar component and the right stabilizer bar component are engaged. When the electromagnetic coil is energized, the magnetic force of the electromagnetic coil can push the sliding sleeve to slide to the side away from the electromagnetic coil, thereby separating the left gear hub and the right gear hub, and separating the left stabilizer bar component and the right stabilizer bar component.

[0031] The automobile stabilizer bar controller of the present application includes a power supply circuit, a main control chip circuit, a boost switching circuit, a boost output circuit, a buck output circuit, a relay switching circuit and an interface circuit, wherein the power supply circuit is connected to an external power supply through a connector, the boost output circuit, the buck output circuit and the relay switching circuit are connected to the power supply circuit, the power supply circuit is used to provide the original voltage to the boost output circuit, the buck output circuit and the relay switching circuit, the boost switching circuit and the relay switching circuit are both electrically connected to the main control chip circuit, the boost switching circuit is electrically connected to the boost output circuit, and is used to enable the boost output circuit to boost the original voltage and output the boost voltage, the buck output circuit is used to buck the original voltage and output the buck voltage, the relay switching circuit is electrically connected to the boost output circuit, the buck output circuit and the interface circuit, and is used to output 0V voltage, original voltage, boost voltage and buck voltage and input the output voltage to the interface circuit; the interface circuit is used to be connected to the electromagnetic coil.

[0032] In a preferred embodiment, the power circuit is electrically connected to an external power source via the KL30 port. Specifically, the original voltage provided by the KL30 port is 12V. The power circuit is also used to power the main control chip circuit.

[0033] In a preferred embodiment, the buck output circuit, boost output circuit, and relay switching circuit are all connected to the power supply circuit via port KL30-1. Specifically, the power supply circuit inputs a 12V voltage to the buck output circuit, boost output circuit, and relay switching circuit. The boost output circuit boosts the 12V voltage, while the buck output circuit steps down the 12V voltage.

[0034] In a preferred embodiment, the relay switching circuit is electrically connected to the boost output circuit via the DRVUPOUT port, the buck output circuit via the DRVDOWNOUT port, and the interface circuit via the DRVI-OUT port. Specifically, the relay switching circuit can selectively output voltages of 0V, 5V, 12V, 14V, 16V, and 18V.

[0035] In a preferred embodiment, the connector model number of the interface circuit is 776267-1. Pins 1 and 2 of the connector are used to connect to the electromagnetic coil. Pins 1 and 2 are connected to the ends of the electromagnetic coil. The output of pin 1 is the voltage selected by the relay switching circuit, with pin 1 serving as the positive terminal and pin 2 as the negative terminal.

[0036] In a preferred embodiment, the boost switching circuit is electrically connected to the boost output circuit via the STEPUP-FB port.

[0037] In a preferred embodiment, the main control chip of the main control chip circuit is GD32A503VDT3, the boost switching circuit is electrically connected to pins 45 and 46 of the main control chip, and the relay switching circuit is electrically connected to pin 49 of the main control chip. Specifically, when the main control chip inputs a low level to both STEPUPCHOOSE IO1 and STEPUPCHOOSE IO2 in the boost switching circuit, the boost output circuit outputs a 14V voltage; when the main control chip inputs a high level to STEPUPCHOOSE IO2 and a low level to STEPUPCHOOSE IO1 in the boost switching circuit, the boost output circuit outputs a 16V voltage; when the main control chip inputs a high level to STEPUPCHOOSE IO1 and a low level to STEPUPCHOOSE IO2 in the boost switching circuit, the boost output circuit outputs an 18V voltage; the higher the voltage selected by the relay switching circuit, the stronger the magnetism of the electromagnetic coil and the greater the thrust on the sliding sleeve.

[0038] In a preferred embodiment, the controller further includes a CAN communication circuit, which is electrically connected to pins 52, 53, and 54 of the main control chip, and to pins 13 and 14 of the interface circuit. Specifically, the controller of the present application communicates with other external controllers on the vehicle via the CAN communication circuit, and the engagement or disengagement status of the vehicle stabilizer bar can be fed back to the external controller.

[0039] In a preferred embodiment, the original voltage is 12V, the boost voltage is 14V, 16V, or 18V, and the step-down voltage is 5V;

[0040] When the relay switching circuit chooses to output 0V voltage, the electromagnetic coil is not energized, which is used to combine the left part of the stabilizer bar and the right part of the stabilizer bar; when the relay switching circuit chooses to output the original voltage or the boosted voltage, the electromagnetic coil is energized, which is used to separate the left part of the stabilizer bar and the right part of the stabilizer bar; when the relay switching circuit chooses to output the stepped-down voltage, the electromagnetic coil is energized, which is used to keep the left part of the stabilizer bar and the right part of the stabilizer bar separated or combined.

[0041] The controller of the present application provides 12V voltage (original voltage) to the power supply circuit through the socket, and the power supply circuit inputs 12V voltage to the boost output circuit, the buck output circuit and the relay switching circuit through the port connection. The boost switching circuit is connected to the boost output circuit to boost the boost output circuit. The main control chip controls the high and low levels of STEPUPCHOOSE IO1 and STEPUPCHOOSE IO2 to make the boost output circuit output 14V, 16V or 18V voltage, and the buck output circuit steps down and outputs 5V voltage. The main control chip can control the relay switching circuit to automatically switch the output voltage so that it outputs 0V, 5V, 12V, 14V, 16V, and 18V voltage. The output voltage of the relay switching circuit is connected to the interface circuit through the DRVI-OUT port, and pins 1 and 2 of the interface circuit are connected to the electromagnetic coil, thereby changing the power-on voltage of the electromagnetic coil.

[0042] According to the driving needs of the car, when the stabilizer bar needs to be engaged, the relay switching circuit is controlled by the main control chip to select the output of 0V voltage. At this time, the electromagnetic coil is not energized and the electromagnetic coil does not generate magnetic force. The spring set on the stabilizer bar causes the sliding sleeve to be set on the left gear hub and the right gear hub, and the left part of the stabilizer bar is combined with the right part of the stabilizer bar. Then the main control chip controls the relay switching circuit to select the output of 5V voltage, so that the power-on voltage of the electromagnetic coil is 5V. The magnetism of the electromagnetic coil keeps the left part of the stabilizer bar and the right part of the stabilizer bar in a combined state; when the stabilizer bar needs to be separated, the relay switching circuit is controlled by the main control chip to output 12V, 14V, 16V or 18V voltage, and the power-on voltage of the electromagnetic coil is 12V, 14V, 16V or 18V. The magnetism is enhanced, and the magnetic force pushes the sliding sleeve to slide to the side away from the electromagnetic coil. The spring is compressed, and the left and right parts of the stabilizer bar are separated from the fixed sliding sleeve. Then the main control chip controls the relay switching circuit to output a 5V voltage, so that the power-on voltage of the electromagnetic coil is 5V. The magnetism of the electromagnetic coil keeps the left and right parts of the stabilizer bar separated. The higher the voltage, the greater the magnetic force generated by the electromagnetic coil, and the greater the thrust on the sliding sleeve. The utility model can control the relay switching circuit to automatically switch the output voltage through the main control chip, and apply different voltages to the electromagnetic coil load to achieve rapid adjustment of the power-on voltage of the electromagnetic coil, thereby controlling the separation and combination of the stabilizer bar. The voltage adjustment is more flexible, and the separation and combination of the stabilizer bar can be achieved quickly.

[0043] In this specification, the terms "connect," "install," and "fix" should be understood broadly. For example, "connect" can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a direct connection or an indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0044] Throughout this specification, terms such as "one embodiment" or "some embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0045] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A vehicle stabilizer bar controller, characterized in that: It includes a power supply circuit, a main control chip circuit, a boost switching circuit, a boost output circuit, a buck output circuit, a relay switching circuit and an interface circuit, wherein the power supply circuit is connected to an external power supply through a connector, the boost output circuit, the buck output circuit and the relay switching circuit are connected to the power supply circuit, the power supply circuit is used to provide the original voltage to the boost output circuit, the buck output circuit and the relay switching circuit, the boost switching circuit and the relay switching circuit are both electrically connected to the main control chip circuit, the boost switching circuit is electrically connected to the boost output circuit, and is used to enable the boost output circuit to boost the original voltage and output a boost voltage, the buck output circuit is used to buck the original voltage and output a buck voltage, the relay switching circuit is electrically connected to the boost output circuit, the buck output circuit and the interface circuit, and is used to output 0V voltage, original voltage, boost voltage and buck voltage and input the output voltage to the interface circuit; the interface circuit is used to be connected to the electromagnetic coil.

2. The automobile stabilizer bar controller according to claim 1, characterized in that: The power circuit is electrically connected to an external power source via the KL30 port.

3. The automobile stabilizer bar controller according to claim 2, characterized in that: The step-down output circuit, the step-up output circuit and the relay switching circuit are all connected to the power supply circuit through the KL30-1 port.

4. The automobile stabilizer bar controller according to claim 3, characterized in that: The relay switching circuit is electrically connected to the boost output circuit through a DRVUPOUT port, the relay switching circuit is electrically connected to the buck output circuit through a DRVDOWNOUT port, and the relay switching circuit is electrically connected to the interface circuit through a DRVI-OUT port.

5. The automobile stabilizer bar controller according to claim 4, characterized in that: The model of the connector in the interface circuit is 776267-1, and pins 1 and 2 of the connector are used to connect the electromagnetic coil.

6. The automobile stabilizer bar controller according to claim 5, characterized in that: The boost switching circuit is electrically connected to the boost output circuit via a STEPUP-FB port.

7. The automobile stabilizer bar controller according to claim 6, characterized in that: The model of the main control chip of the main control chip circuit is GD32A503VDT3, the boost switching circuit is electrically connected to pins 45 and 46 of the main control chip, and the relay switching circuit is electrically connected to pin 49 of the main control chip.

8. The automobile stabilizer bar controller according to claim 7, characterized in that: It also includes a CAN communication circuit, which is electrically connected to pins 52, 53 and 54 of the main control chip, and is electrically connected to pins 13 and 14 of the interface circuit.

9. The automobile stabilizer bar controller according to claim 1, characterized in that: The original voltage is 12V, the boost voltage is 14V, 16V, 18V, and the step-down voltage is 5V; When the relay switching circuit chooses to output 0V voltage, the electromagnetic coil is not energized, which is used to combine the left part of the stabilizer bar with the right part of the stabilizer bar; when the relay switching circuit chooses to output the original voltage or the boosted voltage, the electromagnetic coil is energized, which is used to separate the left part of the stabilizer bar from the right part of the stabilizer bar; when the relay switching circuit chooses to output the stepped-down voltage, the electromagnetic coil is energized, which is used to keep the left part of the stabilizer bar and the right part of the stabilizer bar separated or combined.

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