A signal control method, system and storage medium for an electric air-conditioning compressor

Abstract

The present invention discloses a signal control method, system and storage medium for an electric air-conditioning compressor. The method includes: obtaining first connection information between a compressor controller and a vehicle controller; if the first connection information indicates that the connection mode between the vehicle controller and the compressor controller is a first connection mode, determining that the first connection mode corresponds to a first signal transceiver circuit in the compressor controller; switching the signal transceiver circuit in the compressor controller to the first signal transceiver circuit to receive an enabling signal sent by the vehicle controller through the first signal transceiver circuit; the enabling signal is used to instruct the air-conditioning compressor to operate. The above method can simultaneously be compatible with different signal receiving modes, making different electric air-conditioning compressors universal and saving production costs.

Description

Technical Field

[0001] The present invention relates to the field of new energy vehicles, and particularly to a signal control method, system and storage medium for an electric air-conditioning compressor. Background Art

[0002] The air-conditioning compressor on a traditional fuel vehicle is driven by an engine and only serves as a pure actuator. The relevant connection method is completed through the interaction between the air-conditioning controller and the engine ECU.

[0003] The electric air-conditioning compressor of a new energy vehicle is different from that of a traditional fuel vehicle. The electric air-conditioning compressor of a new energy vehicle needs to use the vehicle's high-voltage power supply as the power source. The compressor needs to be equipped with its own controller, which includes not only an inverter circuit but also an enabling and speed regulation signal processing circuit to receive signals from the air-conditioning controller or the vehicle controller. In new energy vehicles, there are also differences in the reception of enabling and speed regulation signals by different air-conditioning systems for the compressor controller. Taking the electric air-conditioning compressor of a pure electric commercial vehicle as an example, for cost considerations, a low-end air-conditioning system is usually adopted, and the enabling and speed regulation signals are received through hard wires. Since the compressor controller does not have a CAN transceiver circuit, it cannot be connected to the CAN bus. While for a pure electric passenger vehicle, to improve the intelligent control of the air-conditioning system, the enabling and speed regulation signals are received through CAN communication, or the compressor fault and working status information are sent to other controllers. In the above two different vehicle types, their electric air-conditioning systems are not compatible, thus increasing excessive production costs.

[0004] The information disclosed in this background art section is only intended to enhance the overall understanding of the present invention and should not be regarded as an admission or any form of implication that this information constitutes prior art already known to those of ordinary skill in the art. Summary of the Invention

[0005] An object of the present invention is to provide a signal control method and system for an electric air-conditioning compressor, which can simultaneously be compatible with different signal reception methods, enabling different electric air-conditioning compressors to be universal and saving production costs.

[0006] To achieve the above object, the present invention provides a signal control method for an electric air-conditioning compressor, the method comprising:

[0007] Obtaining first connection information between the compressor controller and the vehicle controller; the first connection information is used to characterize the connection manner between the vehicle controller and the compressor controller;

[0008] If the first connection information indicates that the connection mode between the vehicle controller and the compressor controller is a first connection mode, it is determined that the first connection mode corresponds to a first signal transceiver circuit in the compressor controller; wherein the first signal transceiver circuit is at least one of a plurality of signal transceiver circuits provided in the compressor controller;

[0009] Switching the signal transceiver circuit in the compressor controller to the first signal transceiver circuit, so as to receive the enable signal sent by the vehicle controller through the first signal transceiver circuit; the enable signal is used to instruct the air-conditioning compressor to work;

[0010] Among them, the vehicle controller and the compressor controller can also be in a second connection mode, and the second connection mode is that the second signal transceiver circuit in the compressor controller receives the enable signal sent by the vehicle controller, and the second signal transceiver circuit is different from the first signal transceiver circuit.

[0011] Preferably, the method further comprises:

[0012] The enable signal is sent by the vehicle controller to the compressor controller according to the connection mode between the vehicle controller and the compressor controller after the vehicle controller receives the start signal sent by the air-conditioning controller to the vehicle controller.

[0013] Preferably, before the air-conditioning compressor works, the method further comprises:

[0014] The air-conditioning compressor is connected to a high voltage according to a high-voltage instruction sent by the vehicle controller to the all-in-one controller.

[0015] Preferably, the method further comprises:

[0016] Acquire second connection information between the compressor controller and the air conditioner controller; the second connection information is used to characterize the connection mode between the compressor controller and the air conditioner controller;

[0017] If the second connection information indicates that the connection mode between the compressor controller and the air conditioner controller is a third connection mode, it is determined that the third connection mode corresponds to a third signal transceiver circuit in the compressor controller; wherein the third signal transceiver circuit is at least one of a plurality of signal transceiver circuits provided in the compressor controller;

[0018] Switching the signal transceiver circuit in the compressor controller to a third signal transceiver circuit, so as to receive a speed regulation signal sent by the air conditioner controller through the third signal transceiver circuit; the speed regulation signal is used to adjust the speed of the air conditioner compressor;

[0019] Among them, the compressor controller and the air conditioner controller can also be in a fourth connection mode. The fourth connection mode is that the fourth signal transceiver circuit in the compressor controller receives the speed regulation signal sent by the air conditioner controller, and the fourth signal transceiver circuit is different from the third signal transceiver circuit.

[0020] Preferably, the first connection mode and the third connection mode are hard-wired connections, and the second connection mode and the fourth connection mode are CAN bus connections.

[0021] Preferably, if the first connection information indicates that the connection mode between the vehicle controller and the compressor controller is the first connection mode, then determining that the first connection mode corresponds to the first signal transceiver circuit in the compressor controller includes:

[0022] Obtain the level of the first pin of the interface circuit;

[0023] When the first pin of the interface circuit is at a low level, the connection mode between the vehicle controller and the compressor controller is the first connection mode; when the first pin of the interface circuit is at a high level, the connection mode between the vehicle controller and the compressor controller is the second connection mode.

[0024] Preferably, if the second connection information indicates that the connection mode between the compressor controller and the air conditioner controller is the third connection mode, then determining that the third connection mode corresponds to the third signal transceiver circuit in the compressor controller includes:

[0025] Obtain the level of the second pin of the interface circuit;

[0026] When the second pin of the interface circuit is at a low level, the connection mode between the air conditioner controller and the compressor controller is the third connection mode; when the second pin of the interface circuit is at a high level, the connection mode between the air conditioner controller and the compressor controller is the fourth connection mode.

[0027] In an embodiment of the present invention, a signal control system for an electric air-conditioning compressor is provided. The system includes: an air-conditioning compressor, a compressor controller, and a vehicle controller; the compressor controller includes: an interface circuit, a main control chip, a first signal transceiver circuit, and a second signal transceiver circuit;

[0028] The interface circuit is used to obtain the first connection information between the compressor controller and the vehicle controller; the first connection information is used to characterize the connection mode between the vehicle controller and the compressor controller;

[0029] If the first connection information indicates that the connection mode between the vehicle controller and the compressor controller is the first connection mode, determine that the first connection mode corresponds to the first signal transceiver circuit in the compressor controller; wherein, the first signal transceiver circuit is at least one of multiple signal transceiver circuits provided in the compressor controller;

[0030] Switch the signal transceiver circuit in the compressor controller to the first signal transceiver circuit to receive the enable signal sent by the vehicle controller through the first signal transceiver circuit; the main control chip instructs the air-conditioning compressor to work according to the enable signal;

[0031] Wherein, the vehicle controller and the compressor controller can also be in a second connection mode, and the second connection mode is that the second signal transceiver circuit in the compressor controller receives the enable signal sent by the vehicle controller, and the second signal transceiver circuit is different from the first signal transceiver circuit.

[0032] Preferably, the system further includes: an air-conditioning controller, and the compressor controller further includes: a third signal transceiver circuit and a fourth signal transceiver circuit;

[0033] The interface circuit obtains the second connection information between the compressor controller and the air-conditioning controller; the second connection information is used to characterize the connection mode between the compressor controller and the air-conditioning controller;

[0034] If the second connection information indicates that the connection mode between the compressor controller and the air-conditioning controller is the third connection mode, determine that the third connection mode corresponds to the third signal transceiver circuit in the compressor controller; wherein, the third signal transceiver circuit is at least one of multiple signal transceiver circuits provided in the compressor controller;

[0035] Switch the signal transceiver circuit in the compressor controller to the third signal transceiver circuit to receive the speed regulation signal sent by the air-conditioning controller through the third signal transceiver circuit; the main control chip adjusts the speed of the air-conditioning compressor according to the speed regulation signal;

[0036] Wherein, the compressor controller and the air-conditioning controller can also be in a fourth connection mode, and the fourth connection mode is that the fourth signal transceiver circuit in the compressor controller receives the speed regulation signal sent by the air-conditioning controller, and the fourth signal transceiver circuit is different from the third signal transceiver circuit.

[0037] In an embodiment of the present invention, a storage medium is provided, and a computer program is stored in the storage medium. When the computer program is executed by a processor, the steps of a signal control method for an electric air-conditioning compressor as described in any one of the above are implemented.

[0038] Compared with the prior art, the design of the connection mode for enabling different air-conditioning electric compressors according to the present invention enables the air-conditioning compressor enable signal to be implemented through hard-wire control or CAN network communication, thereby being compatible with different air-conditioning system circuits and controls. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 is a flow chart of a signal control method for an electric air-conditioning compressor according to an embodiment of the present invention;

[0040] Figure 2 is a flow chart of a signal control method for an electric air-conditioning compressor according to an embodiment of the present invention;

[0041] Figure 3 is a structural diagram of a signal control system for an electric air-conditioning compressor according to an embodiment of the present invention;

[0042] Figure 4 is a structural diagram of a signal control system for an electric air-conditioning compressor according to an embodiment of the present invention;

[0043] Figure 5 The invention relates to a hard line and CAN line receiving and processing circuit for an enable signal and a speed regulation signal of a compressor controller according to an embodiment of the present invention. DETAILED DESCRIPTION

[0044] The specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific implementation modes.

[0045] Unless explicitly stated otherwise, throughout the specification and claims, the term “comprise” or variations such as “include” or “comprising”, etc., will be understood to include the stated elements or components but not to exclude other elements or components.

[0046] like Figures 1 to 2 As shown, according to a preferred embodiment of the present invention, a signal control method for an electric air-conditioning compressor comprises:

[0047] Step 101, obtaining first connection information between a compressor controller and a vehicle controller; the first connection information is used to characterize the connection mode between the vehicle controller and the compressor controller. The compressor controller is a controller provided by an electric air-conditioning compressor of a new energy vehicle, and the compressor controller includes an inverter circuit, which is connected to the air-conditioning compressor.

[0048] Step 102, if the first connection information indicates that the connection mode between the vehicle controller and the compressor controller is the first connection mode, determine the first signal transceiver circuit in the compressor controller corresponding to the first connection mode; wherein, the first signal transceiver circuit is at least one of multiple signal transceiver circuits set in the compressor controller. Specifically, the first connection mode is that the vehicle controller is connected to the first signal transceiver circuit in the compressor controller through a hard wire.

[0049] Step 103, switch the signal transceiver circuit in the compressor controller to the first signal transceiver circuit to receive the enable signal sent by the vehicle controller through the first signal transceiver circuit; the enable signal is used to instruct the air-conditioning compressor to work. Specifically, after the first signal transceiver circuit receives the enable signal sent by the vehicle controller, it transmits the enable signal to the main control chip, and then the main control chip controls the air-conditioning compressor to start working.

[0050] Wherein, the vehicle controller and the compressor controller can also be in a second connection mode. The second connection mode is that the second signal transceiver circuit in the compressor controller receives the enable signal sent by the vehicle controller, and the second signal transceiver circuit is different from the first signal transceiver circuit. Specifically, the second connection mode is that the vehicle controller is connected to the second signal transceiver circuit in the compressor controller through a CAN bus. In this embodiment, after the second signal transceiver circuit receives the enable signal sent by the vehicle controller, it transmits the enable signal to the main control chip, and then the main control chip controls the air-conditioning compressor to start working.

[0051] The method described in the embodiment of the present invention is designed by the receiving method of different air-conditioning electric compressor enable signals, so that the air-conditioning compressor enable signal can be implemented either by the hard-wired control method or by the CAN network communication method, thereby being compatible with different air-conditioning system circuits and controls.

[0052] A signal control method for an electric air-conditioning compressor in an embodiment of the present invention. Preferably, the method further includes:

[0053] The enable signal is that after the vehicle controller receives the start signal sent by the air-conditioning controller to the vehicle controller, it sends the enable signal to the compressor controller according to the connection mode between the vehicle controller and the compressor controller. In a specific embodiment, when the air-conditioning function is turned on, first the air-conditioning controller sends an AC start signal to the vehicle controller, and after the vehicle controller receives the AC start signal, it sends the enable signal to the compressor controller through the first connection mode or the second connection mode. In another specific embodiment, when the air-conditioning function is turned on, the air-conditioning controller directly sends the enable signal to the compressor controller through the CAN bus.

[0054] In an embodiment of the present invention, a signal control method for an electric air-conditioning compressor is provided. Preferably, before the air-conditioning compressor is operated, the method further comprises:

[0055] According to the high-voltage instruction sent by the vehicle controller to the all-in-one controller, the air-conditioning compressor is connected to the high voltage. Specifically, while sending an enable signal to the compressor controller, the vehicle controller sends a high-voltage instruction to the all-in-one controller through the CAN bus, and the high-voltage instruction is to connect the air-conditioning compressor to the high-voltage power. At this point, the air-conditioning compressor can start working.

[0056] A signal control method for an electric air-conditioning compressor in an embodiment of the present invention preferably further includes:

[0057] Step 201, obtaining second connection information between the compressor controller and the air conditioner controller; the second connection information is used to characterize the connection mode between the compressor controller and the air conditioner controller. The main purpose of the connection between the air conditioner controller and the compressor controller is to send a speed control signal through the air conditioner controller to adjust the speed of the air conditioner compressor.

[0058] Step 202: If the second connection information indicates that the connection mode between the compressor controller and the air conditioner controller is the third connection mode, it is determined that the third connection mode corresponds to the third signal transceiver circuit in the compressor controller; wherein the third signal transceiver circuit is at least one of the multiple signal transceiver circuits provided in the compressor controller. Specifically, the third connection mode may be that the compressor controller is connected to the air conditioner controller via a hard line, that is, the air conditioner controller sends the speed control signal to the third signal transceiver circuit in the compressor controller via the hard line.

[0059] Step 203, switching the signal transceiver circuit in the compressor controller to a third signal transceiver circuit, so as to receive the speed control signal sent by the air-conditioning controller through the third signal transceiver circuit; the speed control signal is used to adjust the speed of the air-conditioning compressor; in a specific embodiment, when the speed of the air-conditioning compressor needs to be changed, the air-conditioning controller directly sends the PMW speed control signal to the third signal transceiver circuit in the compressor controller, and the third signal transceiver circuit transmits the PMW speed control signal to the main control chip to adjust the speed of the air-conditioning compressor.

[0060] The compressor controller and the air-conditioning controller can also be in a fourth connection mode, wherein the fourth connection mode is that the fourth signal transceiver circuit in the compressor controller receives the speed control signal sent by the air-conditioning controller, and the fourth signal transceiver circuit is different from the third signal transceiver circuit. Specifically, the fourth connection mode is that the air-conditioning controller is connected to the fourth signal transceiver circuit in the compressor controller via a CAN bus. In this embodiment, after the fourth signal transceiver circuit receives the speed control signal sent by the air-conditioning controller, it transmits the speed control signal to the main control chip to adjust the speed of the air-conditioning compressor.

[0061] In a preferred embodiment, the second signal transceiver circuit and the fourth signal transceiver circuit are the same CAN transceiver circuit, that is, the second connection mode and the fourth connection mode share a CAN transceiver circuit, and the CAN transceiver circuit includes two lines CANL and CANH, which are respectively connected to CAN_L and CAN_H of the CAN bus. Specifically, the air conditioning controller, the vehicle controller and the all-in-one controller are all connected to the CAN bus.

[0062] In a signal control method for an electric air-conditioning compressor in an embodiment of the present invention, preferably, if the first connection information indicates that the connection mode between the vehicle controller and the compressor controller is a first connection mode, determining that the first connection mode corresponds to a first signal transceiver circuit in the compressor controller includes:

[0063] The level of the first pin of the interface circuit is obtained. The first pin of the interface circuit receives an external enable signal and changes the level value of the first pin according to the enable signal. Specifically, when the enable signal is at a low level, the first pin is also at a low level, and vice versa.

[0064] When the first pin of the interface circuit is at a low level, the connection mode between the vehicle controller and the compressor controller is the first connection mode; when the first pin of the interface circuit is at a high level, the connection mode between the vehicle controller and the compressor controller is the second connection mode. When the first pin is at a low level, the corresponding first pin of the main control chip is also at a low level, which means that the vehicle controller and the compressor controller are connected via a hard line. When the first pin is at a high level, the corresponding first pin of the main control chip is also at a high level, which means that the vehicle controller and the compressor controller are connected via a CAN bus.

[0065] In a signal control method for an electric air-conditioning compressor in an embodiment of the present invention, preferably, if the second connection information indicates that the connection mode between the compressor controller and the air-conditioning controller is a third connection mode, determining that the third connection mode corresponds to a third signal transceiver circuit in the compressor controller includes:

[0066] Obtain the level of the second pin of the interface circuit. Among them, the second pin of the interface circuit receives an external speed regulation signal and changes the level value of its second pin according to the speed regulation signal. Specifically, when the speed regulation signal is at a low level, the corresponding second pin of the main control chip is also at a low level.

[0067] When the second pin of the interface circuit is at a low level, the connection mode between the air conditioner controller and the compressor controller is the third connection mode; when the second pin of the interface circuit is at a high level, the connection mode between the air conditioner controller and the compressor controller is the fourth connection mode. Specifically, when the connection mode is the third connection mode, it means that a speed regulation signal is sent to the compressor controller through a hard wire; when the second pin is at a high level, the corresponding second pin of the main control chip is also at a high level, and a modulation signal is sent to the compressor controller through the CAN bus.

[0068] An embodiment of the present invention also discloses a signal control system for an electric air-conditioning compressor, as Figure 3 and 4 shown. The system includes: an air-conditioning compressor, a compressor controller, and a vehicle controller; the compressor controller includes: an interface circuit (not shown in the figure), a main control chip, a first signal transceiver circuit, and a second signal transceiver circuit;

[0069] The interface circuit is used to obtain the first connection information between the compressor controller and the vehicle controller; the first connection information is used to characterize the connection mode between the vehicle controller and the compressor controller;

[0070] If the first connection information indicates that the connection mode between the vehicle controller and the compressor controller is the first connection mode, then determine that the first connection mode corresponds to the first signal transceiver circuit in the compressor controller; among them, the first signal transceiver circuit is at least one of multiple signal transceiver circuits provided in the compressor controller. Among them, the first connection mode is that the vehicle controller directly connects to the first signal transceiver circuit through a hard wire.

[0071] Switch the signal transceiver circuit in the compressor controller to the first signal transceiver circuit to receive the enable signal sent by the vehicle controller through the first signal transceiver circuit; the main control chip instructs the air-conditioning compressor to work according to the enable signal. Among them, the compressor controller is connected to the air-conditioning compressor through an inverter circuit.

[0072] Among them, the vehicle controller and the compressor controller can also be in a second connection mode. The second connection mode is that the second signal transceiver circuit in the compressor controller receives the enable signal sent by the vehicle controller, and the second signal transceiver circuit is different from the first signal transceiver circuit. The second connection mode is CAN bus, that is, the vehicle controller sends the enable signal to the second signal transceiver circuit through the CAN bus.

[0073] For a signal control system of an electric air-conditioning compressor according to an embodiment of the present invention, preferably, the system further includes: an air-conditioning controller, and the compressor controller further includes: a third signal transceiver circuit and a fourth signal transceiver circuit. In the embodiment of the present invention, the fourth signal transceiver circuit is also the second signal transceiver circuit.

[0074] The interface circuit acquires the second connection information between the compressor controller and the air-conditioning controller; the second connection information is used to characterize the connection mode between the compressor controller and the air-conditioning controller.

[0075] If the second connection information indicates that the connection mode between the compressor controller and the air-conditioning controller is a third connection mode, it is determined that the third connection mode corresponds to the third signal transceiver circuit in the compressor controller; wherein, the third signal transceiver circuit is at least one of multiple signal transceiver circuits provided in the compressor controller. Among them, the third connection mode is that the third signal transceiver circuit and the air-conditioning controller are connected by a hard wire.

[0076] Switch the signal transceiver circuit in the compressor controller to the third signal transceiver circuit to receive the speed control signal sent by the air-conditioning controller through the third signal transceiver circuit; the third signal transceiver circuit is connected to the main control chip, and the main control chip adjusts the speed of the air-conditioning compressor according to the speed control signal.

[0077] Among them, the compressor controller and the air-conditioning controller can also be in a fourth connection mode. The fourth connection mode is that the fourth signal transceiver circuit in the compressor controller receives the speed control signal sent by the air-conditioning controller, and the fourth signal transceiver circuit is different from the third signal transceiver circuit. The fourth connection mode is basically the same as the second connection mode, that is, the air-conditioning controller sends the speed control signal to the second signal transceiver circuit through the CAN bus.

[0078] As Figure 5 shown, it is a hard wire and CAN wire receiving and processing circuit for the compressor controller to receive the enable signal and the speed control signal in a specific embodiment of the present invention. The plug-in CON1 is the interface circuit in the compressor controller.

[0079] The ON / OFF pin 5 of the interface circuit receives the enable signal sent by the vehicle controller. When the enable signal is received at pin 5, it is at a low level, and the optocoupler element TLP185 of U201 conducts, then the signal sent to pin 1 of the main control chip (MCU PIN1) is at a low level; conversely, when the optocoupler element TLP185 of U201 does not conduct, the main control chip pin 1 detects a high level of 3.3V.

[0080] The pin 4 of the interface circuit receives the PWM speed regulation signal sent by the air conditioner controller. When the speed regulation signal received at pin 4 is at a low level, the optocoupler element TLP185 of U211 conducts, and the pin 2 of the main control chip (MCU PIN2) detects a low level; otherwise, it is at a high level. Preferably, the air conditioner control panel or other controllers can send PWM speed regulation signals with different duty cycles to the compressor controller through pin 4, and the main control chip can adjust the speed of the air conditioner compressor according to the detected speed regulation signal.

[0081] The CAN bus is connected to pins 1 and 2 of the interface circuit. The CAN bus uses the SN65HVD230 CAN transceiver chip, and CANRX and CANTX are respectively connected to the CAN transceiver pins of the main control chip.

[0082] The embodiment of the present invention also discloses a storage medium, in which a computer program is stored. When the computer program is executed by a processor, it realizes the steps of a signal control method of an electric air conditioner compressor as described in any one of the above specific embodiments.

[0083] Those skilled in the art should understand that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0084] This application is described with reference to the flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each flow and / or block in the flowchart and / or block diagram, and the combination of flows and / or blocks in the flowchart and / or block diagram, can be realized by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing devices generate for realizing in the process Figure 1 a process or multiple processes and / or blocks Figure 1means for the functions specified in one or more blocks.

[0085] These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to operate in a particular manner, such that the instructions stored in the computer-readable memory produce a manufacture including an instruction means that implements the functions specified in one Figure 1 or more processes and / or blocks Figure 1 means for the functions specified in one or more blocks.

[0086] These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus, such that a series of operational steps are performed on the computer or other programmable apparatus to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable apparatus provide steps for implementing the functions specified in one Figure 1 or more processes and / or blocks Figure 1 means for the functions specified in one or more blocks.

[0087] The foregoing description of the specific exemplary embodiments of the invention has been presented for purposes of illustration and example. It is not intended to limit the invention to the precise forms disclosed, and obviously many modifications and variations are possible in light of the above teaching. The purpose of selecting and describing the exemplary embodiments was to explain the particular principles of the invention and its practical application so that others skilled in the art may realize and utilize the various different exemplary embodiments of the invention and the various different selections and modifications thereof. The scope of the invention is intended to be defined by the claims and their equivalents.

Claims

1. A signal control method for an electric air-conditioning compressor, characterized in that, The method comprises: Acquire first connection information between the compressor controller and the vehicle controller; the first connection information is used to characterize the connection mode between the vehicle controller and the compressor controller; If the first connection information indicates that the connection mode between the vehicle controller and the compressor controller is the first connection mode, it is determined that the first connection mode corresponds to a first signal transceiver circuit in the compressor controller; wherein the first signal transceiver circuit is at least one of a plurality of signal transceiver circuits provided in the compressor controller; after the vehicle controller receives the start signal sent by the air-conditioning controller to the vehicle controller, the vehicle controller sends an enable signal to the compressor controller according to the connection mode between the vehicle controller and the compressor controller; The signal transceiver circuit in the compressor controller is switched to a first signal transceiver circuit, so as to receive an enable signal sent by the vehicle controller through the first signal transceiver circuit; the enable signal is used to instruct the air-conditioning compressor to work; before the air-conditioning compressor works, the high voltage instruction sent by the vehicle controller to the all-in-one controller is used to connect the air-conditioning compressor to a high voltage; The vehicle controller and the compressor controller can also be in a second connection mode, wherein the second connection mode is that a second signal transceiver circuit in the compressor controller receives an enable signal sent by the vehicle controller, and the second signal transceiver circuit is different from the first signal transceiver circuit; obtaining second connection information between the compressor controller and the air-conditioning controller; the second connection information is used to characterize the connection mode between the compressor controller and the air-conditioning controller; If the second connection information indicates that the connection mode between the compressor controller and the air conditioner controller is a third connection mode, it is determined that the third connection mode corresponds to a third signal transceiver circuit in the compressor controller; wherein the third signal transceiver circuit is at least one of a plurality of signal transceiver circuits provided in the compressor controller; Switching the signal transceiver circuit in the compressor controller to a third signal transceiver circuit, so as to receive a speed regulation signal sent by the air conditioner controller through the third signal transceiver circuit; the speed regulation signal is used to adjust the speed of the air conditioner compressor; Among them, the compressor controller and the air-conditioning controller can also be in a fourth connection mode, and the fourth connection mode is that the fourth signal transceiver circuit in the compressor controller receives the speed control signal issued by the air-conditioning controller, and the fourth signal transceiver circuit is different from the third signal transceiver circuit; the first connection mode and the third connection mode are hard-wired connections, and the second connection mode and the fourth connection mode are CAN bus connections.

2. The signal control method of an electric air-conditioning compressor according to claim 1, wherein, If the first connection information indicates that the connection mode between the vehicle controller and the compressor controller is a first connection mode, determining that the first connection mode corresponds to a first signal transceiver circuit in the compressor controller includes: Get the level of the first pin of the interface circuit; When the first pin of the interface circuit is at a low level, the connection mode between the vehicle controller and the compressor controller is a first connection mode; when the first pin of the interface circuit is at a high level, the connection mode between the vehicle controller and the compressor controller is a second connection mode.

3. The signal control method of an electric air-conditioning compressor according to claim 1, characterized in that, If the second connection information indicates that the connection mode between the compressor controller and the air-conditioning controller is the third connection mode, determining that the third connection mode corresponds to the third signal transceiver circuit in the compressor controller includes: Get the level of the second pin of the interface circuit; When the second pin of the interface circuit is at a low level, the connection mode between the air-conditioning controller and the compressor controller is the third connection mode; when the second pin of the interface circuit is at a high level, the connection mode between the air-conditioning controller and the compressor controller is the fourth connection mode.

4. A signal control system for an electric air-conditioning compressor, characterized in that, The system includes: an air-conditioning compressor, a compressor controller and a vehicle controller; the compressor controller includes: an interface circuit, a main control chip, a first signal transceiver circuit and a second signal transceiver circuit; The interface circuit is used to obtain first connection information between the compressor controller and the vehicle controller; the first connection information is used to characterize the connection mode between the vehicle controller and the compressor controller; If the first connection information indicates that the connection mode between the vehicle controller and the compressor controller is the first connection mode, it is determined that the first connection mode corresponds to a first signal transceiver circuit in the compressor controller; wherein the first signal transceiver circuit is at least one of a plurality of signal transceiver circuits provided in the compressor controller; after the vehicle controller receives the start signal sent by the air-conditioning controller to the vehicle controller, the vehicle controller sends an enable signal to the compressor controller according to the connection mode between the vehicle controller and the compressor controller; The signal transceiver circuit in the compressor controller is switched to the first signal transceiver circuit, so as to receive the enable signal sent by the vehicle controller through the first signal transceiver circuit; the main control chip instructs the air-conditioning compressor to work according to the enable signal; before the air-conditioning compressor works, the high voltage instruction sent by the vehicle controller to the all-in-one controller is used to connect the air-conditioning compressor to the high voltage; The vehicle controller and the compressor controller can also be in a second connection mode, wherein the second connection mode is that a second signal transceiver circuit in the compressor controller receives an enable signal sent by the vehicle controller, and the second signal transceiver circuit is different from the first signal transceiver circuit; The air conditioner controller, the compressor controller further comprises: a third signal transceiver circuit and a fourth signal transceiver circuit; The interface circuit acquires second connection information between the compressor controller and the air conditioner controller; the second connection information is used to characterize the connection mode between the compressor controller and the air conditioner controller; If the second connection information indicates that the connection mode between the compressor controller and the air conditioner controller is the third connection mode, determine that the third connection mode corresponds to the third signal transceiver circuit in the compressor controller; wherein, the third signal transceiver circuit is at least one of multiple signal transceiver circuits provided in the compressor controller; Switch the signal transceiver circuit in the compressor controller to the third signal transceiver circuit to receive the speed regulation signal sent by the air conditioner controller through the third signal transceiver circuit; the main control chip adjusts the speed of the air conditioner compressor according to the speed regulation signal; Wherein, the compressor controller and the air conditioner controller can also be in a fourth connection mode, and the fourth connection mode is that the fourth signal transceiver circuit in the compressor controller receives the speed regulation signal sent by the air conditioner controller, and the fourth signal transceiver circuit is different from the third signal transceiver circuit.

5. A storage medium, characterized in that, The storage medium stores a computer program, and when the computer program is executed by a processor, the steps of a signal control method for an electric air conditioner compressor as described in any one of claims 1-3 are implemented.

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