Torque and temperature balance control system and method

Abstract

The invention provides a torque and temperature balance control system and method.The system comprises a display screen and a host, the display screen is rotationally connected with the host, and an encoder, a processor, an embedded controller, a feedback circuit, a voltage conversion circuit, a motor driving circuit and a motor are arranged in the host; the encoder detects the rotation angle of the display screen; the processor generates a control instruction according to the rotation angle and the rotation direction of the display screen; the embedded controller adjusts the voltage output signal according to the control instruction; the feedback circuit compares the voltage output signal with the voltage signal output by the voltage conversion circuit to generate a target voltage signal; the voltage conversion circuit outputs a target voltage to the motor driving circuit according to the target voltage signal, and the motor driving circuit drives the motor, so that the display screen rotates to a target angle. Different voltages can be dynamically provided for the motor according to different rotation stages of the notebook computer screen, so that the temperature and torsion of the motor are balanced, and rotation of the computer screen is guaranteed.

Description

Technical Field

[0001] The present disclosure relates to the field of electronic equipment, and in particular to a torque and temperature balance control system and method. Background Art

[0002] In the related art, the design of a rotating screen notebook will encounter the problem of the motor torque and temperature being unbalanced. Due to space limitations, only micro motors can be used during the design process and heat dissipation design cannot be done. Therefore, when the power supply voltage is high, the motor temperature becomes high and the torque becomes worse. If the power supply voltage is low, the sum of the torque of the hinge and the torque of rotating the screen cannot be overcome when closing the lid and opening it 180 degrees, resulting in the inability to lift the screen. Summary of the invention

[0003] The present disclosure provides a torque and temperature balance control system and method to at least solve the above technical problems existing in the prior art.

[0004] According to a first aspect of the present disclosure, a torque and temperature balance control system is provided, comprising: a display screen and a host, wherein the display screen is rotatably connected to the host, and the host is provided with an encoder, a processor, an embedded controller, a feedback circuit, a voltage conversion circuit, a motor drive circuit and a motor;

[0005] The encoder is used to detect the rotation angle of the display screen; wherein the rotation angle of the display screen is the rotation angle of the display screen relative to the host;

[0006] The processor generates a control instruction according to the rotation angle and rotation direction of the display screen;

[0007] The embedded controller adjusts the voltage output signal according to the control instruction;

[0008] The feedback circuit generates a target voltage signal according to the voltage output signal and the voltage signal output by the voltage conversion circuit;

[0009] The voltage conversion circuit outputs a target voltage to a motor driving circuit according to the target voltage signal, and the motor driving circuit drives a motor so that the display screen rotates to a target angle;

[0010] The encoder, the input end of the embedded controller, and the input end of the motor drive circuit are respectively connected to the processor, the output end of the embedded controller and the output end of the voltage conversion circuit are respectively connected to the input end of the feedback circuit, the output end of the feedback circuit is connected to the input end of the voltage conversion circuit, the output end of the voltage conversion circuit is connected to the input end of the motor drive circuit, and the output end of the motor drive circuit is connected to the motor.

[0011] In one possible implementation, the feedback circuit includes a first feedback circuit and a second feedback circuit;

[0012] The input end of the first feedback circuit is connected to the output end of the voltage conversion circuit, and the output end of the first feedback circuit is connected to the input end of the voltage conversion circuit;

[0013] The input end of the second feedback circuit is connected to the output end of the embedded controller, and the output end of the second feedback circuit is connected to the input end of the first feedback circuit;

[0014] The first feedback circuit detects the voltage signal output by the voltage conversion circuit, receives the voltage output signal through the first feedback circuit, and generates a target voltage signal according to the voltage output signal and the voltage signal output by the voltage conversion circuit.

[0015] In one possible implementation manner, the processor generates a control instruction according to the rotation angle of the display screen, including:

[0016] When the rotation angle of the display screen is within a first threshold range and the rotation direction is toward a vertical angle, the processor generates a first control instruction;

[0017] When the rotation angle of the display screen is within a second threshold range and the rotation direction is toward a vertical angle, the process generates a second control instruction.

[0018] In one possible implementation manner, the embedded controller adjusts the voltage output signal according to the control instruction, including:

[0019] When the embedded controller receives the first control instruction, the first signal input to the voltage conversion circuit and the second signal input to the second feedback circuit are respectively pulled high;

[0020] When the embedded controller receives the second control instruction, the first signal input to the voltage conversion circuit is pulled high, and the second signal input to the second feedback circuit is pulled low.

[0021] In one possible implementation, the first threshold range includes 0 degrees to 30 degrees or 150 degrees to 180 degrees;

[0022] The second threshold range is greater than 30 degrees and less than 150 degrees.

[0023] In one possible implementation manner, the voltage conversion circuit outputs a target voltage according to the voltage output signal, including:

[0024] When the voltage conversion circuit receives the pulled-up first signal and the pulled-up second signal, the voltage conversion circuit outputs a first voltage;

[0025] When the voltage conversion circuit receives the first signal pulled high and the second signal pulled low, it outputs the second voltage.

[0026] In one possible implementation manner, the display screen is connected to the host through a pivotal connection;

[0027] The output shaft of the motor is connected to the pivot shaft.

[0028] According to a second aspect of the present disclosure, a method for balancing torque and temperature is provided, the method comprising:

[0029] The encoder detects the rotation angle of the display screen; wherein the rotation angle of the display screen is the rotation angle of the display screen relative to the host;

[0030] The processor generates a control instruction according to the rotation angle and rotation direction of the display screen;

[0031] The embedded controller adjusts the voltage output signal according to the control instruction;

[0032] The feedback circuit generates a target voltage signal according to the voltage output signal and the voltage signal output by the voltage conversion circuit;

[0033] The voltage conversion circuit outputs a target voltage to a motor driving circuit according to the target voltage signal, and the motor driving circuit drives a motor to rotate the display screen to a target angle.

[0034] In one possible implementation manner, when the rotation angle of the display screen is within a first threshold range and the rotation direction is toward a vertical angle, the processor generates a first control instruction;

[0035] When the rotation angle of the display screen is within a second threshold range and the rotation direction is toward a vertical angle, the process generates a second control instruction.

[0036] In one possible implementation, the feedback circuit includes a first feedback circuit and a second feedback circuit.

[0037] When the embedded controller receives the first control instruction, the first signal input to the voltage conversion circuit and the second signal input to the second feedback circuit are respectively pulled high;

[0038] When the embedded controller receives the second control instruction, the first signal input to the voltage conversion circuit is pulled high, and the second signal input to the second feedback circuit is pulled low.

[0039] According to a third aspect of the present disclosure, there is provided an electronic device, including:

[0040] at least one processor; and

[0041] a memory communicatively connected to the at least one processor; wherein,

[0042] The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method described in the present disclosure.

[0043] According to a fourth aspect of the present disclosure, a non-transitory computer-readable storage medium storing computer instructions is provided, wherein the computer instructions are used to cause the computer to execute the method described in the present disclosure.

[0044] The torque and temperature balance control system and method disclosed in the present invention can dynamically provide different voltages to the motor according to the different rotation stages of the laptop screen. In the heavy load area, high voltage is provided, and in the low load area, low voltage is provided, so that the motor can work stably and continuously, thereby balancing the motor temperature and torque and ensuring the rotation of the computer screen.

[0045] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The above and other objects, features and advantages of the exemplary embodiments of the present disclosure will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present disclosure are shown in an exemplary and non-limiting manner, in which:

[0047] In the drawings, the same or corresponding reference numerals represent the same or corresponding parts.

[0048] Figure 1 The structure of the torque and temperature balance control system of the embodiment of the present disclosure is shown. Figure 1 ;

[0049] Figure 2 A schematic diagram showing the relationship between the screen rotation angle and the motor power when the screen rotates according to an embodiment of the present disclosure;

[0050] Figure 3 A schematic diagram showing the change of the screen rotation angle when the screen rotates according to an embodiment of the present disclosure is shown;

[0051] Figure 4 The structure of the torque and temperature balance control system of the embodiment of the present disclosure is shown. Figure 2 ;

[0052] Figure 5 A schematic diagram showing the working process of the torque and temperature balance control system according to an embodiment of the present disclosure is shown;

[0053] Figure 6 A schematic diagram of the structure of a torque and temperature balance control feedback circuit according to an embodiment of the present disclosure is shown;

[0054] Figure 7 A schematic diagram of the structure of an electronic device according to an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0055] In order to make the purpose, features, and advantages of the present disclosure more obvious and easy to understand, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present disclosure.

[0056] The following describes a torque and temperature balance control system and method provided by the present application in conjunction with the accompanying drawings.

[0057] like Figure 1 As shown, the present application provides a torque and temperature balance control system, including: a display screen (not shown in the figure) and a host (not shown in the figure), the display screen is rotatably connected to the host, and the host is provided with an encoder 11, a processor 12, an embedded controller 13, a feedback circuit 14, a voltage conversion circuit 15, a motor drive circuit 16 and a motor 17;

[0058] The encoder 11 is used to detect the rotation angle of the display screen; wherein the rotation angle of the display screen is the rotation angle of the display screen relative to the host;

[0059] The processor 12 generates a control instruction according to the rotation angle and rotation direction of the display screen;

[0060] The embedded controller 13 adjusts the voltage output signal according to the control instruction;

[0061] The feedback circuit 14 generates a target voltage signal according to the voltage output signal and the voltage signal output by the voltage conversion circuit 15;

[0062] The voltage conversion circuit 15 outputs the target voltage to the motor driving circuit 16 according to the target voltage signal, and the motor driving circuit 16 drives the motor 17 to rotate the display screen to the target angle;

[0063] The encoder 11, the input end of the embedded controller 13, and the input end of the motor drive circuit 16 are respectively connected to the processor 12, the output end of the embedded controller 13 and the output end of the voltage conversion circuit 15 are respectively connected to the input end of the feedback circuit 14, the output end of the feedback circuit 14 is connected to the input end of the voltage conversion circuit 15, the output end of the voltage conversion circuit 15 is connected to the input end of the motor drive circuit 16, and the output end of the motor drive circuit 16 is connected to the motor 17.

[0064] The torque and temperature balance control system provided in this application can be applied to laptop computers or other electronic devices whose display screens are driven by motors to open. This application does not limit this. The display screen is connected to the host through a pivot; the output shaft of the motor 17 is connected to the pivot. Figure 2 As shown, first, taking a laptop as an example, after the screen of the display screen starts to rotate, during the process of the screen rotating from 0 degrees to 90 degrees, the power of the motor 17 consists of two parts, one is the work done to overcome the displacement of the screen gravity (recorded as variable W1), and the other is to overcome the rotation of the notebook's own rotating hinge (recorded as variable W2). Among them, W1=m*g*Δh, W2=F*Δs (m is the weight of the screen 370g, g is the acceleration of gravity 9.8m / s 2 , Δh is the vertical displacement of screen rotation, Δs is the horizontal displacement of screen rotation, and F is the screen hinge torque 2.3kgm); through calculation, it is found that the torque required for motor 17 is different when the screen is at different angles, and the work is maximum when the screen is at 0°~30 degrees or 150°~180° and rotates to 90°.

[0065] Assuming that the center of the screen is taken as the center of gravity of the screen and the width of the screen is L, the work required to rotate from ∠1 to ∠2 is W1+W2=0.37*9.8*L / 2*(sin∠2-sin∠1)+2.3*L / 2*(cos∠1-cos∠2). The work in the vertical direction is dominant. Combined with the trigonometric function waveform, it can be seen that the first 30° of the sine wave increases linearly and then slows down. That is, the difference between sin∠2-sin∠1 in the first 30° is the largest, and the total work acting on the vertical displacement is the largest.

[0066] As a specific example, Figure 3 As shown, the four angles are 10, 20, 70, and 80 degrees. When the screen rotates from 10 degrees to 20 degrees and from 70 degrees to 80 degrees, although the rotation angle is the same, the work required is different. The work required is

[0067] 0.37*9.8*L / 2*(sin20°-sin10°)+2.3*L / 2*(cos10°-cos20°)=0.272L+0.052L

[0068] 0.37*9.8*L / 2*(sin80°-sin70°)+2.3*L / 2*(cos70°-cos80°)=0.082L+0.193L

[0069] Through the calculation of the above work, it can be determined that the work caused by gravity is the dominant factor. In the angle range of 0 to 30° and 150 to 180°, the direction of gravity changes more. In this area, more work needs to be done, and the total work between 30° and 150° is relatively small. According to actual experiments, 6V is more stable in screen rotation between 0-30° and 150-180°, and 5.5V is relatively stable between 30 and 150°.

[0070] In summary, considering the impact of the working voltage of motor 17 on the motor temperature, a dynamic power supply voltage adjustment method is designed. By dividing the area into several angles, the screen angle information collected in real time is used to allocate different working voltages to motor 17. In the heavy load area, high voltage is provided, and in the low load area, low voltage is provided, so that motor 17 can work stably and continuously.

[0071] The torque and temperature balance control system provided in the present application obtains the current spatial position of the display screen based on the encoder 11 and provides a power supply voltage suitable for the angle area. When the motor 17 rotates to drive the screen to different areas, the sensor senses the change in angle and then notifies the system to dynamically adjust the output of the appropriate voltage.

[0072] The torque and temperature balance control system provided by the present application detects the rotation angle of the display screen through the encoder 11, the processor 12 generates a control instruction according to the rotation angle and rotation direction of the display screen, the embedded controller 13 adjusts the voltage output signal according to the control instruction, the feedback circuit compares the voltage output signal with the voltage signal output by the voltage conversion circuit 15, generates a target voltage signal according to the comparison result, and the voltage conversion circuit 15 outputs the target voltage to the motor drive circuit 16 according to the target voltage signal, and the motor drive circuit 16 drives the motor 17 to rotate the display screen to the target angle. Among them, the processor 12 can control the rotation direction and rotation speed of the motor drive circuit 16 to drive the motor 17. Therefore, the processor 12 can obtain the rotation direction of the display screen.

[0073] In some embodiments, the processor 12 generates a control instruction according to the rotation angle of the display screen, including:

[0074] When the rotation angle of the display screen is within a first threshold range and the rotation direction is toward a vertical angle, the processor 12 generates a first control instruction;

[0075] When the rotation angle of the display screen is within a second threshold range and the rotation direction is toward a vertical angle, the process generates a second control instruction.

[0076] Wherein, the first threshold range includes 0 degrees to 30 degrees or 150 degrees to 180 degrees;

[0077] The second threshold range is greater than 30 degrees and less than 150 degrees.

[0078] Specifically, when the rotation angle of the display screen is between 0° and 150° and 180° and the rotation direction is 90°, the processor 12 generates a first control instruction, and when 30°<rotation angle of the display screen<150° and the rotation direction is 90°, the processor 12 generates a second control instruction. It can be understood that, according to different control instructions, the signals output by the embedded controller 13 are different, so that the voltage output by the voltage conversion circuit 15 is different.

[0079] In some embodiments, such as Figure 4 As shown, the feedback circuit includes a first feedback circuit 141 and a second feedback circuit 142;

[0080] The input end of the first feedback circuit 141 is connected to the output end of the voltage conversion circuit 15, and the output end of the first feedback circuit 141 is connected to the input end of the voltage conversion circuit 15;

[0081] An input end of the second feedback circuit 142 is connected to an output end of the embedded controller 13 , and an output end of the second feedback circuit 142 is connected to an input end of the first feedback circuit 141 ;

[0082] The first feedback circuit 141 detects the voltage signal output by the voltage conversion circuit 15 , receives the voltage output signal through the first feedback circuit 141 , and generates a target voltage signal according to the voltage output signal and the voltage signal output by the voltage conversion circuit 15 .

[0083] Among them, the first feedback circuit 141 can detect the voltage signal output by the voltage conversion circuit 15, and the second feedback circuit 142 can receive the voltage output signal of the embedded controller 13 (Embedded Controller, EC). The first feedback circuit 141 compares the voltage signal output by the voltage conversion circuit 15 with the voltage output signal to determine the target voltage signal that should be output.

[0084] For example, when the voltage output signal corresponds to a voltage of 6V, and the voltage signal output by the voltage conversion circuit 15 is 5.5V, it means that the voltage output by the voltage conversion circuit 15 is 5.5V, and the voltage conversion circuit 15 needs to be adjusted so that its output voltage is 6V.

[0085] In some embodiments, the embedded controller 13 adjusts the voltage output signal according to the control instruction, including:

[0086] When the embedded controller 13 receives the first control instruction, it pulls up the first signal input to the voltage conversion circuit 15 and the second signal input to the second feedback circuit 142 respectively;

[0087] When the embedded controller 13 receives the second control instruction, it pulls up the first signal input to the voltage conversion circuit 15 and pulls down the second signal input to the second feedback circuit 142 .

[0088] Specifically, Figure 5 As shown, when the EC receives the first control instruction, the EC pulls up the first signal EN1 and the second signal EN2 input to the voltage conversion circuit 15, thereby turning on the first feedback circuit 141 and the second feedback circuit 142, and the voltage conversion circuit 15 outputs a 6V working voltage for the motor 17. When the EC receives the second control instruction, it pulls up the first signal EN1 input to the voltage conversion circuit 15 and pulls down the second signal EN2 input to the second feedback circuit 142. At this time, only the first feedback circuit 141 is turned on, and the voltage conversion circuit 15 outputs a 5.5V working voltage for the motor 17.

[0089] Among them, Figure 6 As shown, the first feedback circuit 141 and the second feedback circuit 142 both include a plurality of voltage-dividing resistors, the first feedback circuit 141 includes voltage-dividing resistors PR3 and voltage-dividing resistors PR7 / PR4, and the second feedback circuit 142 includes voltage-dividing resistors PR5, voltage-dividing resistors PR10 and field effect transistor PQ1. In the present application, the connection of the second feedback circuit 142 enables the connection of the resistors, resulting in a change in the total circuit, thereby causing a change in the final output voltage of the voltage conversion circuit 15. When the enable signal EN_6V_GPIO is at a low level, the output voltage is determined by the first feedback circuit 141, and 5.5V is output; when the enable signal EN_6V_GPIO is at a high level, the output voltage is determined by the first feedback circuit 141 and the second feedback circuit 142, and 6V is output.

[0090] The output voltage is determined by the first feedback circuit 141 in the present application. In order to allow the voltage output to be dynamic, the technical solution of the present application adds a second feedback circuit 142, which is combined with the first feedback circuit 141 to control the output voltage. The control signal is also controlled by EC. EN1 enables the default voltage of 5.5V, and EN2 and EN1 enable 6V together.

[0091] The torque and temperature balance control system provided in the present application can dynamically provide different voltages to the motor 17 according to the different rotation stages of the laptop screen. It provides high voltage in the heavy load area and low voltage in the low load area, so that the motor 17 can work stably and continuously, thereby balancing the motor temperature and torque to ensure the rotation of the computer screen.

[0092] like Figure 7 As shown, an embodiment of the present application provides a torque and temperature balance control method, the method comprising:

[0093] S701, the encoder 11 detects the rotation angle of the display screen; wherein the rotation angle of the display screen is the rotation angle of the display screen relative to the host;

[0094] S702, the processor 12 generates a control instruction according to the rotation angle and rotation direction of the display screen;

[0095] S703, the embedded controller 13 adjusts the voltage output signal according to the control instruction;

[0096] S704, the feedback circuit 14 generates a target voltage signal according to the voltage output signal and the voltage signal output by the voltage conversion circuit 15;

[0097] S705 , the voltage conversion circuit 15 outputs a target voltage to the motor driving circuit 16 according to the target voltage signal, and the motor driving circuit 16 drives the motor 17 to rotate the display screen to a target angle.

[0098] The torque and temperature balance control method provided by the present application, the encoder 11 detects the rotation angle of the display screen; the rotation angle of the display screen is the rotation angle of the display screen relative to the host, the processor 12 generates a control instruction according to the rotation angle and rotation direction of the display screen, the embedded controller 13 adjusts the voltage output signal according to the control instruction, the feedback circuit 14 compares the voltage output signal and the voltage signal output by the voltage conversion circuit 15, generates a target voltage signal according to the comparison result, the voltage conversion circuit 15 outputs the target voltage to the motor drive circuit 16 according to the target voltage signal, and the motor drive circuit 16 drives the motor 17 to rotate the display screen to the target angle.

[0099] In some embodiments, when the rotation angle of the display screen is within a first threshold range and the rotation direction is toward a vertical angle, the processor 12 generates a first control instruction;

[0100] When the rotation angle of the display screen is within a second threshold range and the rotation direction is toward a vertical angle, the process generates a second control instruction.

[0101] In some embodiments, the feedback circuit includes a first feedback circuit 141 and a second feedback circuit 142.

[0102] When the embedded controller 13 receives the first control instruction, it pulls up the first signal input to the voltage conversion circuit 15 and the second signal input to the second feedback circuit 142 respectively;

[0103] When the embedded controller 13 receives the second control instruction, it pulls up the first signal input to the voltage conversion circuit 15 and pulls down the second signal input to the second feedback circuit 142 .

[0104] As a specific implementation, when the rotation angle of the display screen is between 0 and 30° and between 150 and 180° and the rotation direction is to rotate to 90°, the processor 12 generates a first control instruction, and when 30°<the rotation angle of the display screen<150° and the rotation direction is to rotate to 90°, the processor 12 generates a second control instruction. When the EC receives the first control instruction, the EC pulls up the first signal EN1 and the second signal EN2 input to the voltage conversion circuit 15, thereby turning on the first feedback circuit 141 and the second feedback circuit 142, and the voltage conversion circuit 15 outputs a 6V working voltage of the motor 17. When the EC receives the second control instruction, it pulls up the first signal EN1 input to the voltage conversion circuit 15 and pulls down the second signal EN2 input to the second feedback circuit 142. The first feedback circuit 141 determines the target voltage signal according to the first signal EN1 and the second signal EN2, and the voltage conversion circuit 15 outputs the target voltage according to the target voltage signal. The target voltage is the operating voltage of the motor driving circuit 16. The motor driving circuit 16 drives the motor 17 to rotate. The output shaft of the motor 17 drives the pivot to rotate, so that the display screen rotates to a specified angle. When it rotates to the specified angle, the processor 12 controls the motor driving circuit 16 to stop rotating, so that the screen of the display screen stops rotating.

[0105] According to an embodiment of the present application, the present application also provides an electronic device and a readable storage medium.

[0106] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0107] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0108] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0109] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0110] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0111] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A torque and temperature balance control system, characterized in that: include: A display screen and a host, wherein the display screen is rotatably connected to the host, and the host is provided with an encoder, a processor, an embedded controller, a feedback circuit, a voltage conversion circuit, a motor drive circuit and a motor; The encoder is used to detect the rotation angle of the display screen; wherein the rotation angle of the display screen is the rotation angle of the display screen relative to the host; The processor generates a control instruction according to the rotation angle and rotation direction of the display screen; The embedded controller adjusts the voltage output signal according to the control instruction; The feedback circuit generates a target voltage signal according to the voltage output signal and the voltage signal output by the voltage conversion circuit; The voltage conversion circuit outputs a target voltage to a motor driving circuit according to the target voltage signal, and the motor driving circuit drives a motor so that the display screen rotates to a target angle; The encoder, the input end of the embedded controller, and the input end of the motor drive circuit are respectively connected to the processor, the output end of the embedded controller and the output end of the voltage conversion circuit are respectively connected to the input end of the feedback circuit, the output end of the feedback circuit is connected to the input end of the voltage conversion circuit, the output end of the voltage conversion circuit is connected to the input end of the motor drive circuit, and the output end of the motor drive circuit is connected to the motor.

2. The torque and temperature balance control system according to claim 1, characterized in that: The feedback circuit includes a first feedback circuit and a second feedback circuit; The input end of the first feedback circuit is connected to the output end of the voltage conversion circuit, and the output end of the first feedback circuit is connected to the input end of the voltage conversion circuit; The input end of the second feedback circuit is connected to the output end of the embedded controller, and the output end of the second feedback circuit is connected to the input end of the first feedback circuit; The first feedback circuit detects the voltage signal output by the voltage conversion circuit, receives the voltage output signal through the first feedback circuit, and generates a target voltage signal according to the voltage output signal and the voltage signal output by the voltage conversion circuit.

3. The torque and temperature balance control system according to claim 1, characterized in that: The processor generates a control instruction according to the rotation angle of the display screen, including: When the rotation angle of the display screen is within a first threshold range and the rotation direction is toward a vertical angle, the processor generates a first control instruction; When the rotation angle of the display screen is within a second threshold range and the rotation direction is toward a vertical angle, the process generates a second control instruction.

4. The torque and temperature balance control system according to claim 3, characterized in that: The embedded controller adjusts the voltage output signal according to the control instruction, including: When the embedded controller receives the first control instruction, the first signal input to the voltage conversion circuit and the second signal input to the second feedback circuit are respectively pulled high; When the embedded controller receives the second control instruction, the first signal input to the voltage conversion circuit is pulled high, and the second signal input to the second feedback circuit is pulled low.

5. The torque and temperature balance control system according to claim 3, characterized in that: The first threshold range includes 0 degrees to 30 degrees or 150 degrees to 180 degrees; The second threshold range is greater than 30 degrees and less than 150 degrees.

6. The torque and temperature balance control system according to claim 4, characterized in that: The voltage conversion circuit outputs a target voltage according to the voltage output signal, comprising: When the voltage conversion circuit receives the pulled-up first signal and the pulled-up second signal, the voltage conversion circuit outputs a first voltage; When the voltage conversion circuit receives the first signal pulled high and the second signal pulled low, it outputs the second voltage.

7. The torque and temperature balance control system according to claim 1, characterized in that: The display screen is rotatably connected to the host via a pivot; The output shaft of the motor is connected to the pivot shaft.

8. A torque and temperature balance control method, characterized in that: The method comprises: The encoder detects the rotation angle of the display screen; wherein the rotation angle of the display screen is the rotation angle of the display screen relative to the host; The processor generates a control instruction according to the rotation angle and rotation direction of the display screen; The embedded controller adjusts the voltage output signal according to the control instruction; The feedback circuit generates a target voltage signal according to the voltage output signal and the voltage signal output by the voltage conversion circuit; The voltage conversion circuit outputs a target voltage to a motor driving circuit according to the target voltage signal, and the motor driving circuit drives a motor to rotate the display screen to a target angle.

9. The method according to claim 8, characterized in that When the rotation angle of the display screen is within a first threshold range and the rotation direction is toward a vertical angle, the processor generates a first control instruction; When the rotation angle of the display screen is within a second threshold range and the rotation direction is toward a vertical angle, the process generates a second control instruction.

10. The method according to claim 9, characterized in that The feedback circuit includes a first feedback circuit and a second feedback circuit. When the embedded controller receives the first control instruction, the first signal input to the voltage conversion circuit and the second signal input to the second feedback circuit are respectively pulled high; When the embedded controller receives the second control instruction, the first signal input to the voltage conversion circuit is pulled high, and the second signal input to the second feedback circuit is pulled low.

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