A dual-motor control circuit

Abstract

The present application relates to a dual-motor control circuit, comprising: a power supply startup circuit for providing working electrical energy and starting the operation of the control signal operation circuit; a control signal operation circuit for calculating a first control signal and a second control signal according to the control instruction of the power supply startup circuit; the power supply startup circuit is connected to the control signal operation circuit; a first motor drive circuit for controlling the operation of a first motor according to the first control signal; the first motor drive circuit is connected to the control signal operation circuit; a second motor drive circuit for controlling the operation of a second motor according to the second control signal; the second motor drive circuit is connected to the control signal operation circuit. The dual-motor control circuit provided by the present application has a fast control response speed, stable operation, and smooth signal processing.

Description

Technical Field

[0001] The present invention belongs to the technical field of dual-motor control circuits, and particularly relates to a dual-motor control circuit. Background Art

[0002] Currently, with the advent of the intelligent era, automotive intelligence has gradually become possible. During the development of automotive intelligence, various sensors, controllers, actuators and other components are installed on vehicles to achieve more precise control in complex and changeable environments.

[0003] In automotive intelligence, it is often necessary to perform real-time control on two motors, such as achieving precise control of two motors through a single controller. However, how to achieve the above control objective has become an urgent problem to be solved. Summary of the Invention

[0004] In view of the above problems, the present invention provides a dual-motor control circuit that overcomes or at least partially solves the above problems.

[0005] To solve the above technical problems, the present invention provides a dual-motor control circuit, comprising:

[0006] A power supply startup circuit for providing working electrical energy and starting the control signal operation circuit;

[0007] A control signal operation circuit for calculating a first control signal and a second control signal according to the control instruction of the power supply startup circuit; the power supply startup circuit is connected to the control signal operation circuit;

[0008] A first motor drive circuit for controlling the first motor to work according to the first control signal; the first motor drive circuit is connected to the control signal operation circuit;

[0009] A second motor drive circuit for controlling the second motor to work according to the second control signal; the second motor drive circuit is connected to the control signal operation circuit.

[0010] Preferably, the power supply starting circuit includes: an ECU chip, a capacitor C3, a capacitor C4, a capacitor C5, a capacitor C11, a capacitor C12, a diode D2, a diode D13, a bead FB1, a bead FB2, and a resistor R2. Among them, the pin 1 of the ECU chip is grounded, the pin 2 of the ECU chip is connected to the first end of the resistor R2, the second end of the resistor R2 is connected to the first end of the bead FB2, the second end of the bead FB2 is connected to the LIN_IN_CHIP pin, the pin 3 of the ECU chip is respectively connected to the LIN-OUT pin and the first end of the capacitor C12, the second end of the capacitor C12 is grounded, the pin 4 of the ECU chip is respectively connected to the first end of the capacitor C11, the anode of the diode D2, and the anode of the diode D13, the cathode of the diode D13 is connected to the VM pin, the cathode of the diode D2 is respectively connected to the first end of the capacitor C3, the first end of the capacitor C4, and the first end of the bead FB1, the second ends of the capacitor C3 and the capacitor C4 are both grounded, the second end of the bead FB1 and the first end of the capacitor C5 are both connected to the VBAT pin, and the second end of the capacitor C5 is grounded.

[0011] Preferably, the power supply starting circuit further includes: a TVS diode D1, and the TVS diode D1 is connected in parallel with the capacitor C11.

[0012] Preferably, the power supply starting circuit further includes: a TVS diode D4, and the TVS diode D4 is connected in parallel with the capacitor C12.

[0013] Preferably, the power supply starting circuit further includes: a TVS diode D3, the first end of the TVS diode D3 is connected to the first end of the resistor R2 and the second end is grounded.

[0014] Preferably, the power supply starting circuit further includes: a capacitor C7, the first end of the capacitor C7 is connected to the second end of the resistor R2 and the second end is grounded.

[0015] Preferably, the power supply starting circuit further includes: a capacitor C6, the first end of the capacitor C6 is connected to the second end of the bead FB2 and the second end is grounded.

[0016] Preferably, the control signal arithmetic circuit includes: a controller U1, a controller U3, a resistor R8, a resistor R9, a resistor R25, and a resistor R26. Among them, the 9th pin of the controller U1 is connected to the first end of the resistor R9, the second end of the resistor R9 is connected to the 10th pin of the controller U3, the 9th pin of the controller U3 is connected to the LINOUT pin through the resistor R25, the 20th pin of the controller U1 is connected to the VDD pin through the resistor R8, and the 20th pin of the controller U3 is connected to the VDD pin through the resistor R26.

[0017] Preferably, the first motor drive circuit includes: a controller U2, a capacitor C8, a capacitor C9, a capacitor C10, a resistor R1, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, and a resistor R21. Among them, the 10th pin of the controller U2 is respectively connected to the first end of the capacitor C8 and the VM pin, the second end of the capacitor C8 is grounded, the 14th pin of the controller U2 is connected to the GPIO1 pin through the resistor R3, the 13th pin of the controller U2 is connected to the GPIO2 pin through the resistor R4, the 7th pin of the controller U2 is connected to the GPIO3 pin through the resistor R5, the 8th pin of the controller U2 is connected to the GPIO4 pin through the resistor R6, the 15th pin of the controller U2 is connected to the GPIO5 pin through the resistor R7, the 11th pin of the controller U2 is grounded, the 4th pin of the controller U2 is grounded through the resistor R21, the 1st pin of the controller U2 is grounded through the resistor R1, the 9th pin of the controller U2 is connected to the VM pin through the capacitor C9, and the 12th pin of the controller U2 is grounded through the capacitor C10.

[0018] Preferably, the second motor drive circuit includes: a controller U4, a capacitor C24, a capacitor C18, a capacitor C22, a resistor R22, a resistor R27, a resistor R28, a resistor R29, a resistor R30, a resistor R31, and a resistor R23. Among them, the 10th pin of the controller U4 is respectively connected to the first end of the capacitor C24 and the VM pin, the second end of the capacitor C24 is grounded, the 14th pin of the controller U4 is connected to the GPIO1 pin through the resistor R27, the 13th pin of the controller U4 is connected to the GPIO2 pin through the resistor R28, the 7th pin of the controller U4 is connected to the GPIO3 pin through the resistor R29, the 8th pin of the controller U4 is connected to the GPIO4 pin through the resistor R30, the 15th pin of the controller U4 is connected to the GPIO5 pin through the resistor R31, the 11th pin of the controller U4 is grounded, the 4th pin of the controller U4 is grounded through the resistor R23, the 1st pin of the controller U4 is grounded through the resistor R22, the 9th pin of the controller U4 is connected to the VM pin through the capacitor C18, and the 12th pin of the controller U4 is grounded through the capacitor C22.

[0019] One or more technical solutions in the embodiments of the present invention have at least the following technical effects or advantages: The dual-motor control circuit provided in this application has a fast control reaction speed, stable operation, and smooth signal processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 is a connection schematic diagram of a dual-motor control circuit provided by an embodiment of the present invention;

[0022] Figure 2 is a connection schematic diagram of a power supply startup circuit in a dual-motor control circuit provided by an embodiment of the present invention;

[0023] Figure 3 is a connection schematic diagram of a control signal operation circuit in a dual-motor control circuit provided by an embodiment of the present invention;

[0024] Figure 4 is a connection schematic diagram of a first motor drive circuit in a dual-motor control circuit provided by an embodiment of the present invention;

[0025] Figure 5It is a schematic connection diagram of the second motor drive circuit in a dual-motor control circuit provided by an embodiment of the present invention. Detailed implementation manners

[0026] The present invention will be specifically described below in combination with detailed implementation manners and embodiments, and the advantages and various effects of the present invention will be presented more clearly therefrom. Those skilled in the art should understand that these detailed implementation manners and embodiments are used to illustrate the present invention, rather than to limit the present invention.

[0027] Throughout this specification, unless otherwise specifically stated, the terms used herein should be understood as having the meanings commonly used in the art. Therefore, unless otherwise defined, all technical and scientific terms used herein have the same meaning as the general understanding of those skilled in the art to which the present invention pertains. In case of any conflict, this specification shall prevail.

[0028] Unless otherwise specifically stated, various raw materials, reagents, instruments, equipment, etc. used in the present invention can be obtained through market purchases or can be prepared by existing methods.

[0029] As Figures 1-4 , in an embodiment of the present application, the present invention provides a dual-motor control circuit, including:

[0030] A power supply startup circuit for providing working electrical energy and starting the control signal operation circuit to work;

[0031] A control signal operation circuit for calculating a first control signal and a second control signal according to the control instruction of the power supply startup circuit; the power supply startup circuit is connected to the control signal operation circuit;

[0032] A first motor drive circuit for controlling a first motor to work according to the first control signal; the first motor drive circuit is connected to the control signal operation circuit;

[0033] A second motor drive circuit for controlling a second motor to work according to the second control signal; the second motor drive circuit is connected to the control signal operation circuit.

[0034] Specifically, the power supply startup circuit sends a control instruction to the control signal operation circuit to provide working electrical energy to the control signal operation circuit and start the control signal operation circuit. Then, the control signal operation circuit calculates a first control signal and a second control signal according to the control instruction. Among them, the control signal operation circuit sends the first control signal to the first motor drive circuit, and the control signal operation circuit sends the second control signal to the second motor drive circuit. The first motor drive circuit controls the first motor to rotate under the action of the first control signal, and the second motor drive circuit controls the second motor to rotate under the action of the second control signal.

[0035] In the embodiment of the present application, the power supply startup circuit includes: an ECU chip, a capacitor C3, a capacitor C4, a capacitor C5, a capacitor C11, a capacitor C12, a diode D2, a diode D13, a bead FB1, a bead FB2, and a resistor R2. Among them, the pin 1 of the ECU chip is grounded, the pin 2 of the ECU chip is connected to the first end of the resistor R2, the second end of the resistor R2 is connected to the first end of the bead FB2, the second end of the bead FB2 is connected to the LIN_IN_CHIP pin, the pin 3 of the ECU chip is respectively connected to the LIN-OUT pin and the first end of the capacitor C12, the second end of the capacitor C12 is grounded, the pin 4 of the ECU chip is respectively connected to the first end of the capacitor C11, the anode of the diode D2, and the anode of the diode D13, the cathode of the diode D13 is connected to the VM pin, the cathode of the diode D2 is respectively connected to the first end of the capacitor C3, the first end of the capacitor C4, and the first end of the bead FB1, the second ends of the capacitor C3 and the capacitor C4 are both grounded, the second end of the bead FB1 and the first end of the capacitor C5 are both connected to the VBAT pin, and the second end of the capacitor C5 is grounded.

[0036] Specifically, the power supply startup circuit mainly provides working electrical energy to the control signal operation circuit and starts the control signal operation circuit.

[0037] In the embodiment of the present application, the power supply startup circuit further includes: a TVS diode D1, and the TVS diode D1 is connected in parallel with the capacitor C11.

[0038] Specifically, the function of the TVS diode D1 is to protect the safety of the power supply startup circuit and reduce the reverse transient high-energy impact.

[0039] In the embodiment of the present application, the power supply startup circuit further includes: a TVS diode D4, and the TVS diode D4 is connected in parallel with the capacitor C12.

[0040] Specifically, the function of the TVS diode D4 is to protect the safety of the power supply startup circuit and reduce the reverse transient high-energy impact.

[0041] In the embodiment of the present application, the power supply startup circuit further includes: a TVS diode D3, the first end of the TVS diode D3 is connected to the first end of the resistor R2 and the second end is grounded.

[0042] Specifically, the function of the TVS diode D3 is to protect the safety of the power supply startup circuit and reduce the reverse transient high-energy impact.

[0043] In the embodiment of the present application, the power supply startup circuit further includes: a capacitor C7, a first end of the capacitor C7 is connected to a second end of the resistor R2 and a second end is grounded.

[0044] Specifically, the function of the capacitor C7 is to block the direct current passing through the capacitor C7 and protect the power supply startup circuit.

[0045] In the embodiment of the present application, the power supply startup circuit further includes: a capacitor C6, a first end of the capacitor C6 is connected to a second end of the magnetic bead FB2 and a second end is grounded.

[0046] Specifically, the function of the capacitor C6 is to block the direct current passing through the capacitor C6 and protect the power supply startup circuit.

[0047] In the embodiment of the present application, the control signal operation circuit includes: a controller U1, a controller U3, a resistor R8, a resistor R9, a resistor R25, and a resistor R26. Among them, a pin 9 of the controller U1 is connected to a first end of the resistor R9, a second end of the resistor R9 is connected to a pin 10 of the controller U3, a pin 9 of the controller U3 is connected to the LINOUT pin through the resistor R25, a pin 20 of the controller U1 is connected to the VDD pin through the resistor R8, and a pin 20 of the controller U3 is connected to the VDD pin through the resistor R26.

[0048] Specifically, the control signal operation circuit calculates a first control signal and a second control signal according to the control instruction of the power supply startup circuit and sends them to the first motor drive circuit and the second motor drive circuit respectively.

[0049] In the embodiment of the present application, the first motor drive circuit includes: a controller U2, a capacitor C8, a capacitor C9, a capacitor C10, a resistor R1, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, and a resistor R21. Among them, the 10th pin of the controller U2 is respectively connected to the first end of the capacitor C8 and the VM pin, the second end of the capacitor C8 is grounded, the 14th pin of the controller U2 is connected to the GPIO1 pin through the resistor R3, the 13th pin of the controller U2 is connected to the GPIO2 pin through the resistor R4, the 7th pin of the controller U2 is connected to the GPIO3 pin through the resistor R5, the 8th pin of the controller U2 is connected to the GPIO4 pin through the resistor R6, the 15th pin of the controller U2 is connected to the GPIO5 pin through the resistor R7, the 11th pin of the controller U2 is grounded, the 4th pin of the controller U2 is grounded through the resistor R21, the 1st pin of the controller U2 is grounded through the resistor R1, the 9th pin of the controller U2 is connected to the VM pin through the capacitor C9, and the 12th pin of the controller U2 is grounded through the capacitor C10.

[0050] Specifically, the first motor drive circuit receives the first control signal sent by the control signal operation circuit and controls the rotation of the first motor.

[0051] In the embodiment of the present application, the second motor drive circuit includes: a controller U4, a capacitor C24, a capacitor C18, a capacitor C22, a resistor R22, a resistor R27, a resistor R28, a resistor R29, a resistor R30, a resistor R31, and a resistor R23. Among them, the 10th pin of the controller U4 is respectively connected to the first end of the capacitor C24 and the VM pin, the second end of the capacitor C24 is grounded, the 14th pin of the controller U4 is connected to the GPIO1 pin through the resistor R27, the 13th pin of the controller U4 is connected to the GPIO2 pin through the resistor R28, the 7th pin of the controller U4 is connected to the GPIO3 pin through the resistor R29, the 8th pin of the controller U4 is connected to the GPIO4 pin through the resistor R30, the 15th pin of the controller U4 is connected to the GPIO5 pin through the resistor R31, the 11th pin of the controller U4 is grounded, the 4th pin of the controller U4 is grounded through the resistor R23, the 1st pin of the controller U4 is grounded through the resistor R22, the 9th pin of the controller U4 is connected to the VM pin through the capacitor C18, and the 12th pin of the controller U4 is grounded through the capacitor C22.

[0052] Specifically, the second motor drive circuit receives the second control signal sent by the control signal operation circuit and controls the rotation of the second motor.

[0053] The dual-motor control circuit provided by this application features a fast control reaction speed, stable operation, and smooth signal processing.

[0054] It should be noted that in this text, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element. The above are only specific embodiments of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application will not be limited to these embodiments shown herein, but rather will conform to the widest scope consistent with the principles and novel features claimed herein.

[0055] In summary, the above are only preferred embodiments of the technical solution of this invention, and are not used to limit the protection scope of this invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of this invention shall be included within the protection scope of this invention.

Claims

1. A dual-motor control circuit, characterized in that, Comprising: A power supply startup circuit for providing working electrical energy and starting the control signal operation circuit; A control signal operation circuit for calculating a first control signal and a second control signal according to the control instruction of the power supply startup circuit; the power supply startup circuit is connected to the control signal operation circuit; A first motor drive circuit for controlling the operation of a first motor according to the first control signal; the first motor drive circuit is connected to the control signal operation circuit; A second motor drive circuit for controlling the operation of a second motor according to the second control signal; The second motor drive circuit is connected to the control signal operation circuit; The control signal operation circuit includes: controller U1, controller U3, resistor R8, resistor R9, resistor R25 and resistor R26. Among them, the 9th pin of controller U1 is connected to the first end of resistor R9, the second end of resistor R9 is connected to the 10th pin of controller U3, the 9th pin of controller U3 is connected to the LINOUT pin through resistor R25, the 20th pin of controller U1 is connected to the VDD pin through resistor R8, and the 20th pin of controller U3 is connected to the VDD pin through resistor R26; The first motor drive circuit includes: controller U2, capacitor C8, capacitor C9, capacitor C10, resistor R1, resistor R3, resistor R4, resistor R5, resistor R6, resistor R7 and resistor R21. Among them, the 10th pin of controller U2 is respectively connected to the first end of capacitor C8 and the VM pin, the second end of capacitor C8 is grounded, the 14th pin of controller U2 is connected to the GPIO1 pin through resistor R3, the 13th pin of controller U2 is connected to the GPIO2 pin through resistor R4, the 7th pin of controller U2 is connected to the GPIO3 pin through resistor R5, the 8th pin of controller U2 is connected to the GPIO4 pin through resistor R6, the 15th pin of controller U2 is connected to the GPIO5 pin through resistor R7, the 11th pin of controller U2 is grounded, the 4th pin of controller U2 is grounded through resistor R21, the 1st pin of controller U2 is grounded through resistor R1, the 9th pin of controller U2 is connected to the VM pin through capacitor C9, and the 12th pin of controller U2 is grounded through capacitor C10; The second motor drive circuit includes: controller U4, capacitor C24, capacitor C18, capacitor C22, resistor R22, resistor R27, resistor R28, resistor R29, resistor R30, resistor R31, and resistor R23. Among them, the 10th pin of the controller U4 is respectively connected to the first end of the capacitor C24 and the VM pin, the second end of the capacitor C24 is grounded, the 14th pin of the controller U4 is connected to the GPIO1 pin through the resistor R27, the 13th pin of the controller U4 is connected to the GPIO2 pin through the resistor R28, the 7th pin of the controller U4 is connected to the GPIO3 pin through the resistor R29, the 8th pin of the controller U4 is connected to the GPIO4 pin through the resistor R30, the 15th pin of the controller U4 is connected to the GPIO5 pin through the resistor R31, the 11th pin of the controller U4 is grounded, the 4th pin of the controller U4 is grounded through the resistor R23, the 1st pin of the controller U4 is grounded through the resistor R22, the 9th pin of the controller U4 is connected to the VM pin through the capacitor C18, and the 12th pin of the controller U4 is grounded through the capacitor C22.

2. The dual-motor control circuit according to claim 1, wherein The power supply startup circuit includes: ECU chip, capacitor C3, capacitor C4, capacitor C5, capacitor C11, capacitor C12, diode D2, diode D13, bead FB1, bead FB2, and resistor R2. Among them, the 1st pin of the ECU chip is grounded, the 2nd pin of the ECU chip is connected to the first end of the resistor R2, the second end of the resistor R2 is connected to the first end of the bead FB2, the second end of the bead FB2 is connected to the LIN_IN_CHIP pin, the 3rd pin of the ECU chip is respectively connected to the LIN-OUT pin and the first end of the capacitor C12, the second end of the capacitor C12 is grounded, the 4th pin of the ECU chip is respectively connected to the first end of the capacitor C11, the anode of the diode D2, and the anode of the diode D13, the cathode of the diode D13 is connected to the VM pin, the cathode of the diode D2 is respectively connected to the first end of the capacitor C3, the first end of the capacitor C4, and the first end of the bead FB1, the second ends of the capacitor C3 and the capacitor C4 are both grounded, the second end of the bead FB1 and the first end of the capacitor C5 are both connected to the VBAT pin, and the second end of the capacitor C5 is grounded.

3. The dual-motor control circuit according to claim 2, wherein The power supply startup circuit further includes: TVS diode D1, and the TVS diode D1 is connected in parallel with the capacitor C11.

4. The dual-motor control circuit according to claim 2, wherein The power supply startup circuit further includes: TVS diode D4, and the TVS diode D4 is connected in parallel with the capacitor C12.

5. The dual-motor control circuit according to claim 2, wherein, The power supply startup circuit further includes: TVS diode D3, the first end of the TVS diode D3 is connected to the first end of the resistor R2 and the second end is grounded.

6. The dual-motor control circuit according to claim 2, characterized in that, The power supply startup circuit further includes: capacitor C7, the first end of the capacitor C7 is connected to the second end of the resistor R2 and the second end is grounded.

7. The dual-motor control circuit according to claim 2, wherein The power supply startup circuit further includes: a capacitor C6, a first end of the capacitor C6 is connected to a second end of the bead FB2 and a second end is grounded.

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