Electric control system and loader

Abstract

The utility model provides an electric control system and a loader, the loader comprises a gear shifting device, the electric control system comprises a control circuit, a vehicle information circuit and a gear shifting circuit, and the control circuit is connected with the gear shifting device; the vehicle information circuit is connected with the control circuit; the gear shifting circuit is connected with the control circuit; the vehicle information circuit is used for acquiring vehicle information of the loader and sending the vehicle information to the control circuit; the control circuit is used for receiving and displaying the vehicle information; the gear shifting circuit is used for sending a gear shifting signal to the control circuit, and the control circuit is further used for controlling the gear shifting device based on the gear shifting signal. According to the electric control system, information interaction with the vehicle information circuit and the gear shifting circuit is achieved through one control circuit, additional control circuits or control chips do not need to be arranged, arrangement of wire harnesses is reduced, certain manufacturing cost is saved, meanwhile, the control circuit can receive information of multiple circuits, and the control circuit is more convenient to use. And information interaction among a plurality of circuits is not needed, so that the signal transmission reliability is improved.

Description

Technical Field

[0001] The present application relates to the technical field of engineering machinery, and more specifically, to an electric control system and a loader. Background Art

[0002] As a core machine for loading and transporting, loaders are widely used in various engineering fields. Loaders are usually equipped with an electronic control system for controlling the loaders and performing troubleshooting.

[0003] However, currently, multiple controllers are usually provided in the electronic control system to respectively control and detect different execution units, and information exchange is required between the multiple controllers. This leads to the problem of more wiring harnesses in the electronic control system and higher costs. Utility Model Content

[0004] In order to solve the above problems, the present application provides an electronic control system and a loader, which aims to solve the problem that when the electronic control system is provided with multiple controllers, it leads to a large number of wiring harnesses of the electronic control system and a high cost.

[0005] In the first aspect, the present application provides an electronic control system, including a control circuit, a vehicle information circuit and a shifting circuit, wherein the control circuit is connected to a shifting device; the vehicle information circuit is connected to the control circuit; the shifting circuit is connected to the control circuit; the vehicle information circuit is used to obtain vehicle information of the loader and send it to the control circuit, and the control circuit is used to receive and display the vehicle information; the shifting circuit is used to send a shifting signal to the control circuit, and the control circuit is also used to control the shifting device based on the shifting signal.

[0006] The control circuit in the electric control system provided by the embodiment of the present application is connected with multiple circuits, so that the ports of the control circuit are fully utilized, avoiding the problem that there are surplus effective ports of the control circuit, resulting in the control circuit not being fully utilized and wasting the port resources of the control circuit. At the same time, information interaction with the vehicle information circuit and the shift circuit can be realized through a control circuit, without the need to set up an additional control circuit or control chip, reducing the layout of the wiring harness and saving a certain amount of production cost. At the same time, a control circuit can control multiple circuits without the need for additional control circuits to interact with them, avoiding the problem of network congestion and partial signal loss when multiple control circuits interact using bus signals, improving the reliability of signal transmission, and thus ensuring the operational reliability of the electric control system.

[0007] In one possible design, the control circuit includes a variable timing control unit, which is connected to a shifting device, a vehicle information circuit, and a shifting circuit.

[0008] In one possible design, the vehicle information circuit includes a power battery module and a detection module; the power battery module is connected to the first end of the variable timing control unit, and the power battery module is used to provide power to the variable timing control unit; the detection module is connected to the second end of the variable timing control unit, and the detection module is used to obtain the vehicle information of the loader and send it to the variable timing control unit, and the vehicle information includes at least pressure information and arrival information.

[0009] In a possible design, the detection module includes a first sensor unit and a second sensor unit; the first sensor unit is used to obtain pressure information; and the second sensor unit is used to obtain position information.

[0010] In one possible design, the shift circuit includes a trigger module and a hydraulic module; the trigger module is connected to the third end of the variable timing control unit, and the trigger module is used to send a shift signal to the variable timing control unit; the hydraulic module is connected to the fourth end of the variable timing control unit; wherein the variable timing control unit is also used to control the action of the hydraulic module based on the shift signal to correspondingly control the on and off of the hydraulic oil circuit.

[0011] In one possible design, the gear shift circuit also includes a gear detection module, one end of the gear detection module is connected to the fifth end of the variable timing control unit, and the other end of the gear detection module is connected to the gear shift device. The gear detection module is used to detect information of the gear shift device and send it to the variable timing control unit.

[0012] In a possible design, the shift circuit further includes a gear control module, and the gear control module is connected to the sixth end of the variable timing control unit.

[0013] In a possible design, the electronic control system also includes a display circuit, which is connected to the seventh terminal of the variable timing control unit.

[0014] In a possible design, the electronic control system also includes a wake-up circuit, which is connected to the eighth terminal of the variable timing control unit.

[0015] In a second aspect, the present application provides a loader, comprising a shift module and an electronic control system as described in any optional manner of the first aspect, wherein the electronic control system is connected to the shift module. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the module structure of an electric control system provided by a related technical embodiment;.

[0017] Figure 2 It is a schematic diagram of the module structure of a loader provided in an embodiment of the present application;

[0018] Figure 3It is a schematic diagram of the module structure of an electric control system provided in an embodiment of the present application;

[0019] Figure 4 is a schematic diagram of the module structure of another electric control system provided in an embodiment of the present application;

[0020] Figure 5 It is a schematic diagram of the module structure of another electric control system provided in an embodiment of the present application;

[0021] Figure 6 It is a schematic diagram of the module structure of a detection module provided in an embodiment of the present application;

[0022] Figure 7 It is a schematic diagram of the module structure of another electric control system provided in an embodiment of the present application;

[0023] Figure 8 This is a schematic diagram of the module structure of another electric control system provided in an embodiment of the present application.

[0024] Among them, the reference numerals in the figure are:

[0025] 1', electronic control system; 11', first controller; 12', second controller; 1, electronic control system; 11, control circuit; 111, variable timing control unit; 12, vehicle information circuit; 121, power battery module; 122, detection module; 1221, detection unit; 1222, return oil blockage pressure sensor; 1223, working pressure sensor; 1224, brake pressure sensor; 1225, lifting pilot pressure sensor; 1226, unloading bucket pilot pressure sensor; 1227, collecting bucket pilot pressure sensor; 1228, leveling in place proximity switch; 1229, lifting in place proximity switch; 13, shifting circuit; 131, trigger module; 132, hydraulic module; 133, gear detection module; 1331, input shaft speed sensor; 1332, output shaft speed sensor; 1333, gear sensor; 134, gear control module; 14, display circuit; 15, wake-up circuit. DETAILED DESCRIPTION

[0026] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, and circuits are omitted to prevent unnecessary details from obstructing the description of the present application.

[0027] As the core machinery for loading and transportation, loaders are widely used in various engineering fields, such as construction sites, earthwork operations, mines, etc. In order to control and troubleshoot the loaders, loaders are usually equipped with electronic control systems. The electronic control systems in related technologies usually have multiple controllers to control and detect different execution units respectively, and information exchange is also required between multiple controllers.

[0028] For example, Figure 1 As shown, the electronic control system 1' in the related art may include a first controller 11' and a second controller 12'. The first controller 11' is a vehicle control unit (VCU) for controlling and detecting vehicle information of the loader, and the second controller 12' is a transmission control unit (TCU) for controlling and detecting shifting information of the loader. However, the first controller 11' and the second controller 12' are usually provided with a plurality of ports. When a plurality of controllers are provided, there may be a surplus of effective ports of the controllers, resulting in that the controllers are not fully utilized, thus wasting the port resources of the controllers. At the same time, the first controller 11' and the second controller 12' need to be connected to each other to achieve information exchange. When multiple controllers are used to interact with each other using bus signals, there may be network congestion, resulting in the loss of some signals, affecting the control reliability of the electronic control system 1'; when multiple controllers are used to interact with each other using hard-wired signals (i.e., using wiring harnesses), due to the harsh on-site environment and complex working conditions in some engineering fields, there may be wiring harness failures (such as aging, damage) and other problems that cause signal interruption, thereby causing the loader using the electronic control system 1' to fail. And when multiple controllers use wiring harnesses to interact with each other, the number of wiring harnesses is large and the production cost is high. Secondly, when the wiring harness fails, the operator needs to check the wiring harnesses one by one, which is a large amount of troubleshooting and difficult.

[0029] To this end, the present application provides an electronic control system and a loader. The electronic control system can realize information interaction with the vehicle information circuit and the shift circuit through a control circuit, without the need to set up an additional control circuit or control chip, reducing the layout of the wiring harness and saving a certain amount of production cost. At the same time, the control circuit can receive information from multiple circuits, eliminating the need for information interaction between multiple circuits, thereby improving the reliability of signal transmission.

[0030] The electronic control system and loader provided in the present application are exemplarily introduced below with reference to the accompanying drawings.

[0031] like Figure 2As shown, the loader provided by the embodiment of the present application may include an electronic control system 1 and a shift module 2, and the electronic control system 1 and the shift module 2 are connected to each other so that the electronic control system 1 can control the shift module 2 and detect the real-time information of the shift module 2. For example, the shift module 2 may include a shift motor, and the electronic control system 1 is used to control the shift motor to shift (for example, fast shift, slow shift), and detect the input shaft speed, output shaft speed, gear position and other real-time information of the shift motor. The electronic control system 1 is also connected to other devices in the loader to control and detect other devices in the loader.

[0032] In one example, if Figure 3 As shown, the electronic control system 1 provided by the present application may include a control circuit 11, a vehicle information circuit 12, and a shift circuit 13. The control circuit 11 is connected to the shift device 2 to realize the control of the shift device 2, the vehicle information circuit 12 is connected to the control circuit 11 to realize information interaction, and the shift circuit 13 is connected to the control circuit 11 to realize information interaction. In this way, the electronic control system 1 provided by the present application can realize information interaction with the vehicle information circuit 12 and the shift circuit 13 through a control circuit 11, without setting up an additional control circuit or control chip, reducing the layout of the wiring harness and saving a certain amount of production cost. At the same time, the control circuit 11 can receive information from multiple circuits, and there is no need to exchange information between multiple circuits, thereby improving the reliability of signal transmission.

[0033] Among them, the vehicle information circuit 12 is used to obtain the vehicle information of the loader and send it to the control circuit 11, and the control circuit 11 is used to receive the vehicle information and display it, so that the operator can monitor the vehicle information of the loader in real time to determine whether the loader can operate normally. The shift circuit 13 is used to send a shift signal to the control circuit 11, and the control circuit 11 can control the shift device 2 based on the shift signal to achieve fast shifting, slow shifting, etc. That is, the electronic control system 1 provided in the present application can receive signals provided by multiple different circuits through a control circuit 11 and process them accordingly. For example, it can receive and display the vehicle information of the vehicle information circuit 12, and at the same time, it can control the shift device 2 based on the shift signal provided by the shift circuit 13 to achieve fast shifting and slow shifting. Other circuits can also be added to connect with the control circuit 11 to achieve information interaction, and no specific restrictions are made on this.

[0034] In this way, the control circuit 11 is connected to multiple circuits, so that the ports of the control circuit 11 are fully utilized, avoiding the problem that there are surplus effective ports of the control circuit 11, resulting in the control circuit 11 not being fully utilized, and wasting the port resources of the control circuit 11. At the same time, information interaction with the vehicle information circuit 12 and the shift circuit 13 can be achieved through a control circuit 11. The control logic is simple and there is no need to set up an additional control circuit 11 or control chip, which reduces the layout of the wiring harness and saves a certain amount of production cost. At the same time, a control circuit 11 can control multiple circuits, and there is no need for additional control circuits 11 to interact with them. This avoids the problem of network congestion and partial signal loss when multiple control circuits 11 interact using bus signals, improves the reliability of signal transmission, and thus ensures the operational reliability of the electronic control system 1.

[0035] In order to enable the control circuit 11 provided in the present application to simultaneously implement information interaction with multiple circuits and control multiple circuits, optionally, as Figure 4 As shown, the control circuit 11 may include a variable timing control unit (VTCU) 111. The variable timing control unit 111 is connected to the shift device 2, the vehicle information circuit 12 and the shift circuit 13. The variable timing control unit 111 includes a microprocessor, a sensor, an actuator and other electronic control components to achieve information interaction and control. Below, taking the control circuit 11 as an example that the variable timing control unit 111 may be included, the electronic control system 1 provided in the present application is exemplarily described. Here, it is worth noting that the following only takes the control circuit 11 including the variable timing control unit 111 as an example. The control circuit 11 may also include other circuits or devices that can achieve the following functions.

[0036] In one example, if Figure 5 As shown, the vehicle information circuit 12 may include a power battery module 121 and a detection module 122, wherein the power battery module 121 is connected to the first end of the variable timing control unit 111, and the detection module 122 is connected to the second end of the variable timing control unit 111, wherein the power battery module 121 is used to provide power to the variable timing control unit 111 after it is awakened, so that the variable timing control unit 111 can operate normally to achieve information interaction and control with multiple circuits. After the power battery module 121 provides power to the variable timing control unit 111, the detection module 122 starts to obtain the vehicle information of the loader and sends the vehicle information to the variable timing control unit 111. After receiving the vehicle information, the variable timing control unit 111 displays it accordingly, so that the operator can monitor the vehicle information of the loader in real time to determine whether the loader can operate normally.

[0037] The vehicle information includes at least pressure information and positioning information. In order to enable the detection module 122 to simultaneously obtain the pressure information and positioning information of the loader, in one example, the detection module 122 may include a first sensor unit and a second sensor unit. The first sensor unit is used to obtain pressure information, and the pressure information includes at least return oil blockage pressure information, working pressure information, brake pressure information, lifting pilot pressure information, unloading bucket pilot pressure information and collecting bucket pilot pressure information. The second sensor unit is used to obtain positioning information, and the positioning information includes at least leveling positioning information and lifting positioning information.

[0038] In order to enable the detection module 122 to collect and send the pressure information and the in-position information of the loader to the variable timing control unit 111, in one example, Figure 6 As shown, the detection module 122 may also include a detection unit 1221, the first sensor unit may include an oil return blockage pressure sensor 1222, a working pressure sensor 1223, a brake pressure sensor 1224, a lifting pilot pressure sensor 1225, a bucket unloading pilot pressure sensor 1226 and a bucket collection pilot pressure sensor 1227, and the second sensor unit may include a leveling in place proximity switch 1228 and a lifting in place proximity switch 1229. Among them, the return oil blocking pressure sensor 1222 is used to obtain the return oil blocking pressure information of the loader and send it to the detection unit 1221, the working pressure sensor 1223 is used to obtain the working pressure information of the loader and send it to the detection unit 1221, the brake pressure sensor 1224 is used to obtain the brake pressure information of the loader and send it to the detection unit 1221, the lifting pilot pressure sensor 1225 is used to obtain the lifting pilot pressure information of the loader and send it to the detection unit 1221, the unloading bucket pilot pressure sensor 1226 is used to obtain the unloading bucket pilot pressure information of the loader and send it to the detection unit 1221, and the collecting bucket pilot pressure sensor 1227 is used to obtain the collecting bucket pilot pressure information of the loader. The bucket guide pressure information is sent to the detection unit 1221, the leveling proximity switch 1228 is used to obtain the leveling information of the loader and send it to the detection unit 1221, the lifting proximity switch 1229 is used to obtain the lifting information of the loader and send it to the detection unit 1221, the detection unit 1221 collects this information, and when the variable timing control unit 111 is awakened, the detection unit 1221 sends the vehicle information to the variable timing control unit 111, the variable timing control unit 111 receives the vehicle information and displays it, so that the operator can monitor the vehicle information of the loader in real time to determine whether the loader can operate normally.

[0039] Here, it is worth noting that the detection module 122 may also include other sensors or other devices to obtain other vehicle information of the loader, and this application does not make any specific limitation on this.

[0040] In order to enable the variable timing control unit 111 to display vehicle information, in one example, Figure 7 As shown, the electronic control system 1 may also include a display circuit 14, which is connected to the seventh end of the variable timing control unit 111. The variable timing control unit 111 will send vehicle information to the display circuit 14, and the display circuit 14 will display the vehicle information so that the operator can monitor the vehicle information of the loader in real time to determine whether the loader can operate normally.

[0041] Optionally, the display circuit 14 can be a thin film transistor (TFT) display screen, and the specific size can be set to a 7-inch color TFT display screen, or can be set according to actual needs. This application does not make any specific restrictions on this.

[0042] In one example, if Figure 7 As shown, the electronic control system 1 may further include a wake-up circuit 15 , which is connected to the eighth terminal of the variable timing control unit 111 , and is used to send a wake-up signal to the variable timing control unit 111 .

[0043] Optionally, the wake-up circuit 15 can be a key switch. When the loader needs to start running, the operator can switch the key switch to the ON state, and the key switch will send a wake-up signal to the variable timing control unit 111. After the variable timing control unit 111 is awakened, the power battery module 121 will provide power to the variable timing control unit 111 so that the variable timing control unit 111 can operate normally. When the loader needs to stop running, the operator can switch the key switch to the OFF state, and the key switch can send a shutdown signal to the variable timing control unit 111, or it can not send a wake-up signal to shut down the variable timing control unit 111. There is no specific limitation on this.

[0044] When the operator knows that the excavator has no faults based on the vehicle information, the operator can control the shift device 2 to shift gears through the control circuit 11 and the shift circuit 13. In one example, Figure 7As shown, the shift circuit 13 may include a trigger module 131 and a hydraulic module 132, wherein the trigger module 131 is connected to the third end of the variable timing control unit 111, and the hydraulic module 132 is connected to the fourth end of the variable timing control unit 111. When the operator learns that the excavator is fault-free based on the vehicle information, the operator controls the trigger module 131 to send a shift signal to the variable timing control unit 111, and the variable timing control unit 111 controls the hydraulic module 132 to act based on the shift signal, so as to control the on-off of the hydraulic oil circuit. Here, it can be understood that the action of the hydraulic module 132 refers to the opening or disconnection of the solenoid valve in the hydraulic module 132 to control the on-off of the hydraulic oil circuit, and to open or release the parking brake mode of the excavator. For example, when the operator controls the trigger module 131 to send a shift signal to the variable timing control unit 111, the control unit 111 controls the hydraulic module 132 to release the parking brake mode of the excavator based on the shift signal.

[0045] Optionally, the trigger module 131 may be an electric control handle. When a gear shift is required, the operator may send a gear shift signal to the variable timing control unit 111 through the electric control handle.

[0046] Optionally, the hydraulic module 132 may be a hydraulic valve block, which controls the opening or disconnection of the solenoid valve on the hydraulic valve block to control the on-off of the hydraulic oil circuit, thereby correspondingly opening or releasing the parking brake mode of the excavator.

[0047] In order to obtain the shift information of the shift device 2, in one example, Figure 7 As shown, the shift circuit 13 may also include a gear detection module 133, one end of the gear detection module 133 is connected to the fifth end of the variable timing control unit 111, and the other end of the gear detection module 133 is connected to the gear shift device 2. The gear detection module 133 is used to detect information of the gear shift device 2 and send it to the variable timing control unit 111, so that the variable timing control unit 111 can know the gear shift information of the gear shift device 2 and control the gear shift device 2 to shift gears (for example, fast shifting, slow shifting) based on the gear shift information.

[0048] In one example, if Figure 8As shown, the gear detection module 133 may include an input shaft speed sensor 1331, an output shaft speed sensor 1332 and a gear sensor 1333. The input shaft speed sensor 1331, the output shaft speed sensor 1332 and the gear sensor 1333 are respectively connected to the variable timing control unit 111. The input shaft speed sensor 1331 is used to obtain the input shaft speed information of the gear device 2 and send it to the variable timing control unit 111. The output shaft speed sensor 1332 is used to obtain the output shaft speed information of the gear device 2 and send it to the variable timing control unit 111. The gear sensor 1333 is used to obtain the gear shifting status information and send it to the variable timing control unit 111. When the variable timing control unit 111 receives the gear shifting signal, the gear sensor 1333 detects the current gear shifting status information. The variable timing control unit 111 determines the current gear status of the excavator based on the gear shifting status information detected by the gear sensor 1333, and then determines the vehicle speed of the excavator based on the input shaft speed information and the output shaft speed information provided by the input shaft speed sensor 1331 and the output shaft speed sensor 1332, so as to control the gear shifting device 2 to perform fast and slow gear switching.

[0049] In one example, if Figure 7 As shown, the gear shifting circuit 13 also includes a gear control module 134, which is connected to the sixth end of the variable timing control unit 111. When the gear shifting device 2 completes the gear shifting, the variable timing control unit 111 will send a torque command to the gear control module 134. The gear control module 134 outputs the corresponding torque based on the torque demand to drive the gear shifting motor in the gear shifting device 2 to realize the entire gear shifting process.

[0050] Optionally, the gear control module 134 may be an all-in-one controller, or other circuits or devices capable of realizing the above functions, and this application does not impose any specific limitation on this.

[0051] In this way, the control circuit 11 in the electronic control system 1 provided by the present application can receive sensor signals provided by multiple sensors of the vehicle, such as return oil blocking pressure information, working pressure information, brake pressure information, lifting pilot pressure information, unloading bucket pilot pressure information, collecting bucket pilot pressure information, input shaft speed information and output shaft speed information, etc., and can control multiple execution circuits at the same time, the control logic is simple, and there is no need to set up additional control circuits 11 or control chips, which reduces the layout of the wiring harness and saves a certain amount of production costs. At the same time, one control circuit 11 can control multiple circuits, and there is no need for additional control circuits 11 to interact with them, which avoids the problem that when multiple control circuits 11 use bus signals to interact, there may be network congestion, resulting in partial signal loss, and improves the reliability of signal transmission, thereby ensuring the operation reliability of the electronic control system 1. Secondly, the control circuit 11 is connected to multiple execution circuits, so that the ports of the control circuit 11 are fully used, avoiding the problem that there are surplus effective ports of the control circuit 11, resulting in the control circuit 11 not being fully used, and wasting the port resources of the control circuit 11.

[0052] The above-mentioned power battery module 121, detection module 122, trigger module 131, hydraulic module 132, gear detection module 133, gear control module 134 and display circuit 14 are respectively connected to the variable timing control unit 111 through wiring harnesses. The variable timing control unit 111 can be connected to the controllers in other systems of the loader through bus communication to realize signal interaction.

[0053] Optionally, the variable timing control unit 111 channel contains a digital input / digital output (DI / DO) channel, an analog input / analog output (AI / AO) channel, a first in first out (FI / FO) channel, a controller area network (CAN) channel, and an H-bridge driver to achieve connection with different execution circuits or other circuits.

[0054] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, wholes, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof.

[0055] It should also be understood that the term “and / or” used in the specification and appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0056] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0057] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0058] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. An electronic control system, characterized in that: Applied to a loader, the loader includes a shifting device, and the electronic control system includes: a control circuit connected to the shift device; a vehicle information circuit connected to the control circuit; and a shift circuit connected to the control circuit; The vehicle information circuit is used to obtain the vehicle information of the loader and send it to the control circuit, and the control circuit is used to receive and display the vehicle information; the shift circuit is used to send a shift signal to the control circuit, and the control circuit is also used to control the shift device based on the shift signal.

2. The electronic control system according to claim 1, characterized in that: The control circuit comprises: A variable timing control unit is connected to the shift device, the vehicle information circuit and the shift circuit.

3. The electronic control system according to claim 2, characterized in that: The vehicle information circuit comprises: a power battery module, the power battery module being connected to a first end of the variable timing control unit, the power battery module being used to provide power for the variable timing control unit; and A detection module is connected to the second end of the variable timing control unit, and is used to obtain the vehicle information of the loader and send it to the variable timing control unit. The vehicle information includes at least pressure information and arrival information.

4. The electronic control system according to claim 3, characterized in that: The detection module comprises: a first sensor unit, the first sensor unit is used to obtain the pressure information; and A second sensor unit, wherein the second sensor unit is used to obtain the in-position information.

5. The electronic control system according to claim 2, characterized in that: The shifting circuit comprises: a trigger module, the trigger module being connected to a third terminal of the variable timing control unit, the trigger module being used to send the shift signal to the variable timing control unit; and a hydraulic module connected to a fourth end of the variable timing control unit; Wherein, the variable timing control unit is also used to control the action of the hydraulic module based on the shift signal to correspondingly control the on and off of the hydraulic oil circuit.

6. The electronic control system according to claim 5, characterized in that: The shift circuit further comprises: A gear detection module, one end of which is connected to the fifth end of the variable timing control unit, and the other end of which is connected to the gear shifting device. The gear detection module is used to detect information of the gear shifting device and send it to the variable timing control unit.

7. The electronic control system according to claim 6, characterized in that: The shift circuit further includes: A gear control module is connected to the sixth end of the variable timing control unit.

8. The electronic control system according to any one of claims 2 to 7, characterized in that: The electronic control system further comprises: A display circuit is connected to the seventh end of the variable timing control unit.

9. The electronic control system according to claim 8, characterized in that: The electronic control system further comprises: A wake-up circuit is connected to the eighth terminal of the variable timing control unit.

10. A loader, characterized in that: include: Gear shift module; as well as, The electronic control system according to any one of claims 1 to 9, wherein the electronic control system is connected to the shift module.

Images