Driving motor assembly with identity recognition function

Abstract

The invention discloses a driving motor assembly with an identity recognition function. A driving motor (1) is driven by a motor controller; an identification signal transmitter (2) is arranged on the driving motor (1), and an identification signal receiver is arranged on the motor controller; and the identification signal receiver receives a motor identity identification signal transmitted by the identification signal transmitter (2). By adopting the technical scheme, the motor controller can identify the identities of different motors and correctly call corresponding control programs; the identification signal transmitter and the rotating speed signal wire harness are integrated and fixed on the shell of the driving motor, so that the motor has the advantages of small occupied space, water resistance, dust resistance and attractive appearance.

Description

Technical Field

[0001] The present invention belongs to the technical field of off-road drive motor control, and more specifically, relates to a drive motor assembly with an identity recognition function. Background Art

[0002] In off-road vehicles, the same controller is usually adapted to various specifications, models and types of motors. The control programs stored in the motor controllers are different for driving motors of different models and specifications. Correct adaptation is required so that the drive motors can operate normally. If the motor controller calls the wrong program to control the drive motor, the drive motor will not respond correctly, which may lead to safety hazards such as overspeeding and runaway.

[0003] Using keywords such as "motor; identification; control" to search existing public technical literature, the following search results were obtained:

[0004] 1. Chinese patent document: "Motor rotor position identification method, compressor control device and refrigeration appliance", patent (application) number: 201780019403.2, the technical solution recorded is:

[0005] "In a method for detecting the rotor position of a brushless DC motor in a domestic refrigeration appliance, the brushless DC motor having at least two permanent magnet pole pairs and electrically generated controlled magnetic pole pairs in a winding, the following method steps are provided:

[0006] a. To identify the rotor position, a controlled test run is performed;

[0007] b. Assigning the rotor position of the characteristic external load torque to the corresponding controlled magnetic pole pair; assigning the mechanical rotor position to the electrical rotor position, which is used for control purposes before the motor starts running. Based on the characteristic deviation of the phase current value, for example, the rotor position of the characteristic external load torque in the time period 34 can be assigned to the corresponding controlled magnetic pole pair";

[0008] The technical effects recorded are:

[0009] "Detection of the rotor position of a brushless DC motor before starting the motor in the running direction";

[0010] 2. Chinese patent document: "Phase sequence identification method and phase sequence identification device when charging electric vehicles", patent (application) number: 201210591824.1, the technical solution recorded is:

[0011] "A method for identifying the phase sequence when an electric vehicle is charged, comprising the following steps: inserting a charging gun into a charging socket of an electric vehicle, wherein the charging gun is connected to an external power source; after the charging gun and the charging socket are confirmed to be connected, obtaining the effective values ​​of the first phase voltage to the third phase voltage input by the charging socket; when judging that the external power source is a three-phase power source according to the effective values ​​of the first phase voltage to the third phase voltage, obtaining the rising edge zero point of the phase voltage of any one phase from the first phase voltage to the third phase voltage, and detecting the instantaneous values ​​of the phase voltages of the other two phases from the first phase voltage to the third phase voltage; judging the phase sequence of the external power source according to the instantaneous values ​​of the phase voltages of the other two phases; and also providing a phase sequence identification device when the electric vehicle is charged";

[0012] The technical effects recorded are:

[0013] "The phase sequence identification method and device can automatically identify the type of external power supply and select different control strategies to realize charging of different power supply types, saving the cost of building hardware circuits, thereby improving the compatibility and reliability of the charging system."

[0014] Obviously, the technical solutions recorded in the above-mentioned public technical documents and the existing publicly applied technical solutions have not been able to solve the problems and defects of the prior art that "the motor controller incorrectly calls different motor control programs, which may lead to safety hazards such as speeding and runaway." Summary of the invention

[0015] The present invention provides a driving motor assembly with an identity recognition function, the purpose of which is to enable a motor controller to recognize the identities of different motors and correctly call corresponding control programs.

[0016] In order to achieve the above object, the technical solution adopted by the present invention is:

[0017] The drive motor assembly with identity recognition function of the present invention comprises the following steps: the drive motor is driven by a motor controller; an identification signal transmitter is arranged on the drive motor, and an identification signal receiver is arranged on the motor controller; the identification signal receiver receives the motor identity recognition signal sent by the identification signal transmitter.

[0018] The motor identification signal is the model and specification parameters of the drive motor.

[0019] The motor identification signal is sent using a pulse signal.

[0020] The pulse signal distinguishes different drive motors through different duty cycles.

[0021] When the number of the drive motors is two or more than two, the motor identification signal of each drive motor is unique, and the motor identification signals of the drive motors are different from each other; accordingly, the motor controller sets the driver program and drive parameters of each drive motor to match each drive motor respectively.

[0022] The circuit of the identification signal transmitter is connected to the driving circuit of the drive motor; when the driving circuit and the signal transmitter of the drive motor are powered on, the identification signal transmitter transmits a motor identification signal lasting for several seconds to the motor controller; when the motor controller receives this signal, it will identify the identity of the drive motor, that is, learn the model and specification parameters of the drive motor, and at the same time determine the motor driver program and drive parameters that need to be called, and control and drive the drive motor.

[0023] After the drive motor is started and enters a normal operating state, the identification signal transmitter stops sending the motor identity identification signal.

[0024] The motor controller adjusts and controls the rotation speed and torque of the drive motor by adjusting and controlling the three-phase alternating current input to the drive motor.

[0025] The identification signal transmitter is integrated with the speed signal harness of the drive motor and fixed on the housing of the drive motor.

[0026] When the motor controller finds that the motor identification signal it receives does not match the set driver program and drive parameters, the motor controller will report a fault code and will not allow the motor to run, or will allow the motor to run at a low speed.

[0027] The present invention adopts the above technical solution to realize the motor controller to identify the identities of different motors and correctly call the corresponding control program; the identification signal transmitter and the speed signal harness are integrated and fixed on the housing of the drive motor, which has the advantages of small space occupation, waterproof and dustproof, and beautiful appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The contents shown in the attached drawings and the symbols in the drawings are briefly described as follows:

[0029] Figure 1 It is a schematic diagram of the appearance structure of the present invention.

[0030] The markings in the figure are:

[0031] 1. Drive motor, 2. Identify signal transmitter. DETAILED DESCRIPTION

[0032] The specific implementation modes of the present invention are further explained in detail below by describing the embodiments with reference to the accompanying drawings, so as to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention.

[0033] like Figure 1 The structure of the present invention shown is a drive motor assembly with an identity recognition function, and the drive motor 1 is driven by a motor controller.

[0034] Since the drive motor 1 and the motor controller are separate, a controller of the same specification can be used to control drive motors of different specifications and models, which may result in matching errors, causing the drive motor to fail to operate normally or even cause a safety accident.

[0035] In order to solve the above problems existing in the prior art and overcome its defects, realize the motor controller to identify different motors, and correctly call the corresponding control program, the technical solution adopted by the present invention is:

[0036] like Figure 1 As shown, the drive motor assembly with identity recognition function of the present invention, the drive motor 1 is provided with an identification signal transmitter 2, and the motor controller is provided with an identification signal receiver; the identification signal receiver receives the motor identity recognition signal emitted by the identification signal transmitter 2.

[0037] The motor identification signal is the model and specification parameters of the drive motor 1.

[0038] The motor identification signal is sent as a pulse signal, and the pulse signal distinguishes different drive motors 1 by different duty cycles.

[0039] An external identification signal transmitter 2 is installed on all drive motors 1. This pulse signal transmitter will define a fixed duty cycle signal with the upper-level controller, so that after receiving this signal, the motor controller will identify and determine whether the application matches it; when a mismatch is found, the controller will report a fault code and will not allow the motor to run or run at a low speed.

[0040] In addition, this signal will 100% verify whether the signal is correct when the drive motor 1 is running, ensuring that the drive motor sold is 100% correct, thereby effectively solving the above-mentioned safety hazard problem in the prior art.

[0041] When the number of the drive motors 1 is two or more than two, the motor identification signal of each drive motor 1 is unique, and the motor identification signals of each drive motor 1 are different from each other; accordingly, the motor controller sets the driver program and drive parameters for each drive motor 1 to match each drive motor 1 respectively.

[0042] Therefore, the signal emitted by the drive motor 1 with the identification signal transmitter 2 (i.e., the pulse generator) of the present invention is not used to control the drive motor, but to let the motor controller know what kind of internal program and data should be called to control the drive motor 1, so as to avoid erroneous calling of other programs and data to control the drive motor 1 and avoid possible safety hazards such as speeding and runaway.

[0043] The circuit of the identification signal transmitter 2 is connected to the driving circuit of the drive motor 1; when the driving circuit of the drive motor 1 and the signal transmitter 2 are powered on, the identification signal transmitter 2 transmits a motor identity recognition signal lasting for several seconds to the motor controller; when the motor controller receives this signal, it will identify the identity of the drive motor 1, that is, learn the model and specification parameters of the drive motor 1, and at the same time determine the motor driver program and drive parameters that need to be called, and control and drive the drive motor 1.

[0044] The duty cycle of the pulse signal is pre-set by the internal program of the motor controller; after the drive motor is powered on, a duty cycle signal lasting for several seconds is transmitted to the motor controller. After receiving this signal, the motor controller will identify which program needs to be called to drive and control the drive motor.

[0045] After the drive motor 1 is started and enters the normal operation state, the identification signal transmitter 2 stops sending the motor identification signal. The purpose of this setting is to prevent the identification signal transmitter 2 from continuously sending signals after the drive motor is operating normally, which may cause interference to the motor controller.

[0046] The motor controller adjusts and controls the rotation speed and torque of the drive motor 1 by adjusting and controlling the three-phase alternating current input to the drive motor 1 .

[0047] The motor controller controls the speed and torque of the motor by changing the parameters of the input three-phase AC power.

[0048] The identification signal transmitter 2 is integrated with the speed signal harness of the drive motor 1 and fixed on the housing of the drive motor 1.

[0049] The identification signal transmitter 2 is fixed on the housing of the drive motor 1, and the identification signal transmitter 2 is integrated with the speed signal harness and fixed on the housing of the drive motor 1, which has the advantages of small space occupation, waterproof and dustproof, and beautiful appearance.

[0050] When the motor controller finds that the motor identification signal it receives does not match the set driver program and drive parameters, the motor controller will report a fault code and will not allow the motor to run, or will allow the motor to run at a low speed.

[0051] By reporting fault codes through the motor controller, the control system and its operators can discover the problem and propose solutions to the problem as soon as possible to ensure the normal operation of the production process.

[0052] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A drive motor assembly with an identity recognition function, wherein the drive motor (1) is driven by a motor controller; characterized in that: The driving motor (1) is provided with an identification signal transmitter (2), and the motor controller is provided with an identification signal receiver; the identification signal receiver receives the motor identity identification signal sent by the identification signal transmitter (2).

2. The drive motor assembly with identity recognition function according to claim 1, characterized in that: The motor identification signal is the model and specification parameters of the drive motor (1).

3. The drive motor assembly with identity recognition function according to claim 1, characterized in that: The motor identification signal is sent using a pulse signal.

4. The drive motor assembly with identity recognition function according to claim 3, characterized in that: The pulse signal distinguishes different drive motors (1) through different duty ratios.

5. The drive motor assembly with identity recognition function according to claim 1, characterized in that: When the number of the drive motors (1) is two or more than two, the motor identification signal of each drive motor (1) is unique, and the motor identification signals of the drive motors (1) are different from each other; accordingly, the drive program and drive parameters set by the motor controller for each drive motor (1) are matched with each drive motor (1) respectively.

6. The drive motor assembly with identity recognition function according to claim 4, characterized in that: The circuit of the identification signal transmitter (2) is connected to the driving circuit of the drive motor (1); when the driving circuit of the drive motor (1) and the signal transmitter (2) are powered on, the identification signal transmitter (2) transmits a motor identification signal lasting for several seconds to the motor controller; upon receiving the signal, the motor controller identifies the identity of the drive motor (1), that is, learns the model and specification parameters of the drive motor (1), and at the same time determines the motor driver program and driving parameters that need to be called, and controls and drives the drive motor (1).

7. The drive motor assembly with identity recognition function according to claim 6, characterized in that: After the drive motor (1) is started and enters a normal operating state, the identification signal transmitter (2) stops sending the motor identity identification signal.

8. The drive motor assembly with identity recognition function according to claim 6, characterized in that: The motor controller adjusts and controls the rotation speed and torque of the drive motor (1) by adjusting and controlling the three-phase alternating current input to the drive motor (1).

9. The drive motor assembly with identity recognition function according to claim 1, characterized in that: The identification signal transmitter (2) is integrated with the rotation speed signal harness of the drive motor (1) and fixed on the housing of the drive motor (1).

10. The driving motor assembly with identity recognition function according to claim 1, characterized in that: When the motor controller finds that the motor identification signal it receives does not match the set driver program and drive parameters, the motor controller will report a fault code and will not allow the motor to run, or will allow the motor to run at a low speed.

Images