Left and right part identification device and method for AGS motor

Abstract

The invention provides a left and right part identification device and method for an AGS motor. The device comprises a wire harness end of a whole vehicle connected with the motor, and a wire harness end of the whole vehicle connected with the motor, wherein the wire harness end comprises a BAT signal line, an LIN signal line and a GND signal line; the AGS motor end is connected with the whole vehicle connection motor and comprises a VBAT signal pin, an LIN signal pin, a GND signal pin and a reserved DIAG signal pin; and the signal identification circuit is connected with the reserved DIAG signal pin through the signal identification circuit, the input signal level of the signal identification circuit is detected, and the AGS motor is automatically configured into a corresponding NAD according to the detected input signal level. By adding the left and right part identification function of the AGS motor, the motors of the same specification only have one part number no matter the motors are applied to a single motor or double motors, and the management cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of parts identification, and in particular to a left and right parts identification device and method for an AGS motor. Background Art

[0002] At present, AGS motors basically use LIN communication to communicate with VCU (voltage control unit), and receive control commands and status feedback through the LIN bus. For the AGS dual-motor system, in order to distinguish the two motors, each motor must have an independent NAD (Node address). The current common practice is to manually set the NAD for the two motors through software before getting on the vehicle. In this way, motors with different NADs exist as different individuals in the entire ecological chain including production, transportation and after-sales service.

[0003] However, most of the existing AGS dual-motor control solutions use left and right motors with pre-set NADs, and the same wiring harness is used for the entire vehicle. Conventional NAD changes are handled manually, which poses a potential risk of change errors and increases management costs. Summary of the invention

[0004] In view of the defects in the prior art, the purpose of the present invention is to provide a left and right component identification device and method for AGS motors. By adding the left and right component identification function of the AGS motor, motors of the same specification have only one part number regardless of single-motor or dual-motor applications, thereby reducing management costs.

[0005] To solve the above problems, the technical solution of the present invention is:

[0006] A left and right parts identification device for an AGS motor, comprising:

[0007] The wiring harness end of the vehicle connected to the motor: including BAT signal line, LIN signal line and GND signal line;

[0008] The AGS motor end connected to the vehicle connection motor includes a VBAT signal pin, a LIN signal pin, a GND signal pin and a reserved DIAG signal pin;

[0009] Signal recognition circuit: The signal recognition circuit is connected to the reserved DIAG signal pin, and the input signal level of the signal recognition circuit is detected. According to the input signal level detected, the AGS motor is automatically configured to the corresponding NAD. Preferably, the NAD of the AGS motor is automatically configured according to the preset NAD1 and NAD2 judgment functions.

[0010] Preferably, the signal identification circuit is a low-effective left-right component identification circuit, and the low-effective left-right component identification circuit connects the reserved DIAG signal pin to the ground line.

[0011] Preferably, the low effective left and right component identification circuit comprises an ESD capacitor, an anti-reverse diode, a pull-up resistor and an RC filter circuit.

[0012] Preferably, the signal identification circuit is a highly effective left and right component identification circuit, and the highly effective left and right component identification circuit connects the reserved DIAG signal pin with the VBAT signal line.

[0013] Preferably, the highly effective left and right component identification circuit includes an ESD capacitor, an ESD diode, a transistor, a pull-up resistor and an RC filter circuit.

[0014] Furthermore, the present invention also provides a left and right component identification method for an AGS motor, comprising the following steps: the AGS motor reserves a DIAG signal pin, and the reserved DIAG signal pin is connected to a signal identification circuit;

[0015] According to the preset NAD1 and NAD2 judgment functions in the software, pre-set the corresponding levels of NAD1 and NAD2 of the AGS left and right motors;

[0016] According to the detected output signal level of the signal recognition circuit, the AGS motor is automatically configured to the corresponding NAD. Preferably, the step of automatically configuring the AGS motor to the corresponding NAD according to the detected output signal level of the signal recognition circuit specifically includes: when the MCU detects the level of the output signal of the signal recognition circuit and determines whether it is the level corresponding to NAD1 or the level corresponding to NAD2, the AGS motor is automatically configured to the corresponding NAD.

[0017] Compared with the prior art, the advantages of the present invention are as follows:

[0018] 1. The present invention adds a signal recognition circuit. When the MCU detects the level output by the signal recognition circuit, the AGS motor is automatically configured to the corresponding NAD;

[0019] 2. After the invention adds the left and right parts identification function, motors of the same specification have only one part number regardless of whether they are used in single motor or dual motor applications, thus reducing management costs;

[0020] 3. After delivery to the customer, the client only needs to manage one part number for production and logistics, and after-sales service will also become simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0022] Figure 1 A structural block diagram of a left and right component identification device for an AGS motor provided by an embodiment of the present invention;

[0023] Figure 2 A structural block diagram of a low-effective left and right component identification device provided by an embodiment of the present invention;

[0024] Figure 3 A circuit diagram for identifying low-effective left and right components provided by an embodiment of the present invention;

[0025] Figure 4 A structural block diagram of a highly effective left and right component identification device provided by an embodiment of the present invention;

[0026] Figure 5 A highly effective left and right component identification circuit diagram provided by an embodiment of the present invention;

[0027] Figure 6 A flowchart of a left and right component identification method for an AGS motor provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0028] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several changes and improvements can also be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0029] The present invention is mainly applicable to dual-motor applications. After a motor with left-right component identification function is assembled on an AGS assembly and connected to a wiring harness with left-right component identification on a complete vehicle, left-right component identification of the AGS motor can be realized.

[0030] Specifically, Figure 1 As shown, the left and right parts identification device for the AGS motor includes:

[0031] The wiring harness end of the vehicle connected to the motor: including BAT signal line, LIN signal line and GND signal line;

[0032] The AGS motor end connected to the vehicle motor: A conventional AGS motor connector generally has 4 pins, including three pins for VBAT signal, LIN signal, and GND signal, and a reserved signal pin DIAG for function expansion.

[0033] Signal identification circuit: The present invention utilizes the reserved signal pin DIAG of the AGS motor to design a signal identification circuit connected to the reserved signal pin DIAG. According to the determined hardware solution, the software presets the NAD1 and NAD2 judgment functions, and automatically configures the NAD of the AGS motor in combination with the external wiring harness connection conditions.

[0034] The signal recognition circuit can use a low effective left and right component recognition circuit, or a high effective left and right component recognition circuit, such as Figure 2 As shown, the low-effective left and right component identification circuit connects the reserved signal pin DIAG to the ground wire (GND signal wire). The ground wire can be connected to the vehicle body nearby or separated from the wiring harness ground wire, which can achieve cost optimization. This solution is the best solution in terms of architecture and operability, and is also the current main solution.

[0035] like Figure 3 As shown, the low effective left and right component identification circuit includes an ESD capacitor, an anti-reverse diode, a pull-up resistor and an RC filter circuit.

[0036] like Figure 4 As shown, the high-effective left and right component identification circuit connects the reserved signal pin DIAG to the VBAT signal line. This solution is suitable for the case where the vehicle wiring harness is convenient for providing the VBAT signal. Its working principle is similar to that of the low-effective left and right component identification circuit. Due to the power input, the protection requirements for the internal processing circuit of the motor are relatively high.

[0037] like Figure 5 As shown, the highly effective left and right component identification circuit includes an ESD capacitor, an ESD diode, a transistor, a pull-up resistor and an RC filter circuit.

[0038] Figure 6 A flowchart of a method for identifying left and right parts of an AGS motor provided by an embodiment of the present invention, such as Figure 6 As shown, the method comprises the following steps:

[0039] S1: AGS motor reserves a DIAG signal pin, connect the reserved DIAG signal pin to the signal identification circuit;

[0040] S2: According to the preset NAD1 and NAD2 judgment functions in the software, the corresponding levels of NAD1 and NAD2 of the AGS left and right motors are pre-set;

[0041] S3: According to the output signal level of the detected signal recognition circuit, the AGS motor is automatically configured to the corresponding NAD.

[0042] Specifically, when the MCU detects the level of the output signal of the signal identification circuit and determines whether it is the level corresponding to NAD1 or NAD2, the AGS motor is automatically configured to the corresponding NAD, thereby achieving automatic configuration of the slave node in the entire LIN network. There is no need for manual NAD rewriting after production and special storage of the left and right motors. Regardless of whether there is only one motor at the motor end, assembly end, vehicle end, and after-sales end, the concept of left and right motors is mainly reflected in specific applications.

[0043] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. A left and right part identification device for an AGS motor, characterized in that: The device comprises: The wiring harness end of the vehicle connected to the motor: including BAT signal line, LIN signal line and GND signal line; The AGS motor end connected to the vehicle connection motor includes a VBAT signal pin, a LIN signal pin, a GND signal pin and a reserved DIAG signal pin; Signal identification circuit: The signal identification circuit is connected to the reserved DIAG signal pin to detect the input signal level of the signal identification circuit, and the AGS motor is automatically configured to the corresponding NAD according to the detected input signal level.

2. The left and right parts identification device for AGS motor according to claim 1, characterized in that: Automatically configure the NAD of the AGS motor based on the preset NAD1 and NAD2 judgment functions.

3. The left and right parts identification device for AGS motor according to claim 1, characterized in that: The signal identification circuit is a low-effective left and right component identification circuit, and the low-effective left and right component identification circuit connects the reserved DIAG signal pin to the ground line.

4. The left and right parts identification device for AGS motor according to claim 3, characterized in that: The low effective left and right component identification circuit comprises an ESD capacitor, an anti-reverse diode, a pull-up resistor and an RC filter circuit.

5. The left and right parts identification device for AGS motor according to claim 1, characterized in that: The signal identification circuit is a highly effective left and right component identification circuit, and the highly effective left and right component identification circuit connects the reserved DIAG signal pin with the VBAT signal line.

6. The left and right parts identification device for AGS motor according to claim 5, characterized in that: The highly effective left and right component identification circuit includes an ESD capacitor, an ESD diode, a transistor, a pull-up resistor and an RC filter circuit.

7. A method for identifying left and right parts of an AGS motor, characterized in that: The method comprises the following steps: the AGS motor reserves a DIAG signal pin, and the reserved DIAG signal pin is connected to a signal identification circuit; According to the preset NAD1 and NAD2 judgment functions in the software, pre-set the corresponding levels of NAD1 and NAD2 of the AGS left and right motors; Based on the output signal level detected by the signal recognition circuit, the AGS motor is automatically configured to the corresponding NAD.

8. The left and right parts identification method for AGS motor according to claim 7, characterized in that: The step of automatically configuring the AGS motor to the corresponding NAD based on the detected output signal level of the signal identification circuit specifically includes: when the MCU detects the level of the output signal of the signal identification circuit and determines whether it is the level corresponding to NAD1 or the level corresponding to NAD2, the AGS motor is automatically configured to the corresponding NAD.

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