An electric special equipment one-key start-stop device and method

Abstract

The application discloses a one-key start-stop device and method for electric special equipment, which comprises switches S1-S7, relays K1-K8, a contactor KM1, a starting battery and a start-stop controller, wherein the start-stop controller comprises an auxiliary power supply, I / O input, CAN communication and I / O output. The application collects the power-on / power-off request of a user through a self-resetting switch, maintains the power supply of a power-on contactor through self-locking of a relay, and finally completes pre-charging and power-on through software control of IO output running on the start-stop controller. When power-off, the start-stop controller and an upper computer are communicated to determine whether the system can be powered off, and then power-off control is performed; when the start-stop controller fails, power-off can be performed through an emergency power-off switch.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of power distribution control, and particularly relates to a one-key start-stop device and method for electric special equipment. BACKGROUND

[0002] The traditional large pure electric chassis adopts a power supply master switch + key switch for power-on control. The power supply master switch is installed beside the door, and the key switch is installed at the driving position. Since mechanical switches are used for control, misoperation power-off is prone to occur. If misoperation power-off occurs when the vehicle is running at high speed or working with an upper load, great harm is likely to be caused. SUMMARY

[0003] The present application aims to overcome the defects of the prior art and provide a one-key start-stop device and method for electric special equipment.

[0004] The present application is achieved by the following technical scheme: a one-key start-stop device for electric special equipment, characterized in that it comprises switches S1-S7, relays K1-K8, a contactor KM1, a starting battery, and a start-stop controller. The start-stop controller comprises an auxiliary power supply, I / O input, CAN communication, and I / O output. The D11 end of the I / O input is connected with one end of the switch S1, the D12 end of the I / O input is connected with the 1 end of the switch S3, the D13 end of the I / O input is connected with the 1 end of the switch S5, and the D14 end of the I / O input is connected with one end of the switch S7. The D01 end of the I / O output is respectively connected with one end of the coil of the relay K2 and one end of the switch S2, and the D02 end of the I / O output is respectively connected with one end of the coil of the relay K8 and one end of the switch S6. The other end of the switch S7, the other end of the switch S6, one end of the switch of the relay K7, the 2 end of the switch S5, the 4 end of the switch S5, one end of the switch of the relay K6, the 2 end of the switch S3, the 4 end of the switch S3, the other end of the switch S2, the 2 end of the switch S1, and one end of the switch of the contactor KM1 are all connected with one end of the auxiliary power supply. The other end of the switch of the contactor KM1 is respectively connected with the 4 end of the switch S1, one end of the switch of the relay K1, and the positive electrode of the starting battery. The 3 end of the switch S1 and the other end of the switch of the relay K1 are connected and connected with one end of the coil of the relay K1 and one end of the coil of the contactor KM1 through the switch of the relay K2. The 3 end of the switch S5 and the other end of the relay K6 are connected and connected with one end of the coil of the relay K6 and one end of the coil of the relay K7 through the relay K8. The negative electrode of the starting battery, the other end of the coil of the relay K1, the other end of the coil of the contactor KM1, the other end of the coil of the relay K6, the other end of the coil of the relay K7, the other end of the coil of the relay K2, and the other end of the coil of the relay K8 are all connected with the other end of the auxiliary power supply.

[0005] The CAN communication is connected to the host computer, the other end of the switch of the relay K7 is connected to the load power contact power supply, and the 3 end of the switch S3 is connected to the bus power contact power supply.

[0006] Further, the voltage of the starting battery is 28V.

[0007] Further, the start-stop controller is powered in three gears.

[0008] A one-key start-stop method for electric special equipment, comprising three-gear power-on, specifically:

[0009] Gear one is low-voltage control power-on, controlled by switch S1, S1 is a self-resetting switch, in the power-off state, press the switch S1 and then release, the low-voltage power-on contactor KM1 output is then self-locked through the relay K1, and the low-voltage power-on is maintained; in the power-on state, press and hold the switch S1, the start-stop controller I / O input DI1 detects a continuous high level, which is judged as an operator requiring low-voltage power-off, at this time a low-voltage power-off request is sent to the host computer, after the request is responded, the start-stop controller I / O output DO1 outputs a high level, the relay K1 is unlocked, and the low-voltage power-off is realized.

[0010] Gear two is bus power-on, controlled by switch S3, S3 is a self-locking switch, in the normal state, S3 is in the closed state by default, and in the maintenance and debugging state, S3 can be initially in the open state; after the power-on of gear one is completed, the start-stop controller and the host computer are powered on and started at the same time, and then self-checking is performed. After the self-checking is completed, the start-stop controller I / O input DI2 detects a high level, which is judged as an operator requiring bus power-on, then the I / O output controls the bus pre-charge and then power-on; in the gear two power-on state, the switch S3 is opened, the power supply of the bus power-on contactor is powered off, and the gear two is powered off.

[0011] Gear three is a general load power-on switch, controlled by switch S5, S5 is a self-resetting switch; after the bus power-on is completed, press the switch S5, the switch state is self-locked through the relay K6, and at the same time the start-stop controller I / O input DI3 detects a high level, which is judged as an operator requiring general load power-on, then the I / O output controls the general load pre-charge and then power-on; in the gear three power-on state, press and hold the switch S5, the start-stop controller I / O input DI3 detects a continuous high level, which is judged as an operator requiring general load power-off, at this time a general load power-off request is sent to the host computer, after the request is responded, the start-stop controller I / O output DO2 outputs a high level, the relay K6 is unlocked, and the load is powered off.

[0012] Further, in the power-on state, one-key power-off can be realized by long-pressing S1 regardless of the gear position, and the start-stop controller will sequentially power off according to the current state after receiving the one-key power-off instruction, and then the low-voltage power supply is disconnected.

[0013] Further, in the power-on state, one-key power-off can be realized by long-pressing S1 regardless of the gear position, and the start-stop controller will sequentially power off according to the current state after receiving the one-key power-off instruction, and then the low-voltage power supply is disconnected.

[0014] Further, in the power-on state, one-key power-off can be realized by long-pressing S1 regardless of the gear position, and the start-stop controller will sequentially power off according to the current state after receiving the one-key power-off instruction, and then the low-voltage power supply is disconnected.

[0015] The foregoing main scheme of the application and each further selected scheme thereof can be freely combined to form multiple schemes, all of which are the schemes that can be adopted and claimed by the application. Those skilled in the art can understand that there are multiple combinations according to the existing technology and common knowledge after understanding the schemes of the application, and all of them are the technical schemes claimed by the application, which will not be listed exhaustively here.

[0016] The application has the following advantages: the application collects the user power-on / power-off request through the self-resetting switch, maintains the power supply of the power-on contactor through the self-locking relay, and finally controls the IO output through the software running in the start-stop controller to complete the pre-charging and power-on. When power-off, the start-stop controller communicates with the upper computer to determine whether the system can be powered off, and then controls the power-off. When the start-stop controller fails, the emergency power-off switch can be used for power-off. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is the schematic diagram of the application. DETAILED DESCRIPTION

[0018] The embodiments of the application are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the application from the disclosure. The application can also be implemented or applied through different specific embodiments, and each detail in the description can be modified or changed based on different views and applications without departing from the spirit of the application. It should be noted that the following examples and features in the examples can be combined with each other without conflict.

[0019] It should be noted that, in order to make the purpose, technical scheme and advantages of the embodiments of the application more clear, the technical scheme of the embodiments of the application is described clearly and completely below. Obviously, the described embodiments are part of the embodiments of the application, not all the embodiments.

[0020] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship of the product in use, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0021] In addition, the terms "horizontal", "vertical", "suspended" and the like do not mean that the components must be absolutely horizontal or suspended, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0022] In the description of the present application, it should be noted that unless otherwise specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0023] In addition, the present application points out that in the present application, if the specific structures, connection relationships, positional relationships, power source relationships and the like are not specifically written, the structures, connection relationships, positional relationships, power source relationships and the like involved in the present application can be known by those skilled in the art on the basis of the prior art without creative labor.

[0024] Example 1:

[0025] Reference Figure 1The application discloses a one-key start-stop device for electric special equipment, which comprises switches S1-S7, relays K1-K8, a contactor KM1, a starting battery and a start-stop controller, wherein the start-stop controller comprises an auxiliary power supply, I / O input, CAN communication, I / O output, the D11 end of the I / O input is connected with one end of the switch S1, the D12 end of the I / O input is connected with one end of the switch S3, the D13 end of the I / O input is connected with one end of the switch S5, the D14 end of the I / O input is connected with one end of the switch S7, the D01 end of the I / O output is connected with one end of the coil of the relay K2 and one end of the switch S2 respectively, the D02 end of the I / O output is connected with one end of the coil of the relay K8 and one end of the switch S6 respectively, the other end of the switch S7, the other end of the switch S6, one end of the switch of the relay K7, the 2 end of the switch S5, the 4 end of the switch S5, one end of the switch of the relay K6, the 2 end of the switch S3, the 4 end of the switch S3, the other end of the switch S2, the 2 end of the switch S1 and one end of the switch of the contactor KM1 are all connected with one end of the auxiliary power supply, the other end of the switch of the contactor KM1 is connected with the 4 end of the switch S1, one end of the switch of the relay K1 and the positive pole of the starting battery respectively, the 3 end of the switch S1 and the other end of the switch of the relay K1 are connected and connected with one end of the coil of the relay K1 and one end of the coil of the contactor KM1 through the switch of the relay K2 respectively, the 3 end of the switch S5 and the other end of the relay K6 are connected and connected with one end of the coil of the relay K6 and one end of the coil of the relay K7 through the relay K8 respectively, and the negative pole of the starting battery, the other end of the coil of the relay K1, the other end of the coil of the contactor KM1, the other end of the coil of the relay K6, the other end of the coil of the relay K7, the other end of the coil of the relay K2 and the other end of the coil of the relay K8 are all connected with the other end of the auxiliary power supply.

[0026] The CAN communication is connected with an upper computer, and the other end of the switch of the relay K7 is connected with a load power contact power supply, and the 3 end of the switch S3 is connected with a bus power contact power supply.

[0027] The first gear is low-voltage control power on, which is controlled by the switch S1, and the S1 is a self-resetting switch; in the power-off state, the switch S1 is pressed and then released, the low-voltage power-on contactor KM1 output is then self-locked through the relay K1, and the low-voltage power-on is maintained; in the power-on state, the switch S1 is long-pressed, the start-stop controller I / O input DI1 detects a continuous high level, and it is judged that the operator requires low-voltage power-off; at this time, a low-voltage power-off request is sent to the upper computer, after the request is responded, the start-stop controller I / O output DO1 outputs a high level, the relay K1 is unlocked, and the low-voltage power-off is realized.

[0028] The second gear is for bus power-on, which is controlled by switch S3. S3 is a self-locking switch. In normal state, S3 is closed by default. In maintenance and debugging state, S3 is initially open. After the first gear is powered on, the start-stop controller and the upper computer are powered on and started, and then self-checking is performed. After the self-checking is completed, the start-stop controller I / O input port DI2 detects a high level, and it is judged that the operator requires bus power-on. Then, the I / O output controls the bus pre-charge, and then the power-on. In the second gear power-on state, the switch S3 is disconnected, and the power supply of the bus power-on contactor is disconnected. The second gear is powered off.

[0029] The third gear is a general load power-on switch, which is controlled by switch S5. S5 is a self-resetting switch. After the bus power-on is completed, the switch S5 is pressed, the switch state is locked by relay K6, and at the same time, the start-stop controller I / O input port DI3 detects a high level. It is judged that the operator requires general load power-on. Then, the I / O output controls the general load pre-charge, and then the power-on. In the third gear power-on state, the switch S5 is pressed for a long time, and the start-stop controller I / O input port DI3 detects a continuous high level. It is judged that the operator requires general load power-off. At this time, a general load power-off request is sent to the upper computer. After the request is responded, the start-stop controller I / O output port DO2 outputs a high level, the relay K6 is unlocked, and the load is powered off.

[0030] After the third gear is powered on, if special load power-on is required, the special load power-on switch S7 is started. After the start-stop controller receives the switch signal, the special load is pre-charged and then powered on. After the use of the special load is completed, if power-off is required, the switch S7 can be directly disconnected. After the start-stop controller receives the switch signal, the special load is powered off.

[0031] In addition, in the power-on state, no matter what gear is in, one-key power-off can be realized by pressing S1 for a long time. After the start-stop controller receives the one-key power-off instruction, it will sequentially power off according to the current state, and then disconnect the low-voltage power supply.

[0032] In the power-on state, if the start-stop controller fails and cannot control the power-off, the emergency power-off switches S2 and S6 can be used for emergency power-off.

[0033] The application collects user power-on / power-off requests through a self-resetting switch, locks the power supply of the power-on contactor through a relay, and finally controls the pre-charge and power-on through the software running in the start-stop controller. When power-off, the start-stop controller communicates with the upper computer to determine whether the system can be powered off, and then controls the power-off. When the start-stop controller fails, the emergency power-off switch can be used for power-off.

[0034] The above merely describes preferred embodiments of the present application, and is not used to limit the present application, any modification, equivalent replacement and improvement within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. An electric special equipment one-key start-stop device, characterized in that, The start-stop controller includes an auxiliary power supply, I / O input, CAN communication, I / O output, the D11 end of the I / O input is connected with one end of the switch S1, the D12 end of the I / O input is connected with the 1 end of the switch S3, the D13 end of the I / O input is connected with the 1 end of the switch S5, the D14 end of the I / O input is connected with one end of the switch S7, the D01 end of the I / O output is respectively connected with one end of the coil of the relay K2 and one end of the switch S2, the D02 end of the I / O output is respectively connected with one end of the coil of the relay K8 and one end of the switch S6, the other end of the switch S7, the other end of the switch S6, one end of the switch of the relay K7, the 2 end of the switch S5, the 4 end of the switch S5, one end of the switch of the relay K6, the 2 end of the switch S3, the 4 end of the switch S3, the other end of the switch S2, the 2 end of the switch S1 and one end of the switch of the contactor KM1 are all connected with one end of the auxiliary power supply, the other end of the switch of the contactor KM1 is respectively connected with the 4 end of the switch S1, one end of the switch of the relay K1 and the positive pole of the starting battery, the 3 end of the switch S1 and the other end of the switch of the relay K1 are connected and connected with one end of the coil of the relay K1 and one end of the coil of the contactor KM1 through the switch of the relay K2, the 3 end of the switch S5 and the other end of the relay K6 are connected and connected with one end of the coil of the relay K6 and one end of the coil of the relay K7 through the relay K8, the negative pole of the starting battery, the other end of the coil of the relay K1, the other end of the coil of the contactor KM1, the other end of the coil of the relay K6, the other end of the coil of the relay K7, the other end of the coil of the relay K2 and the other end of the coil of the relay K8 are all connected with the other end of the auxiliary power supply; The CAN communication is connected with the upper computer, and the other end of the switch of the relay K7 is connected with a load power contact power supply, and the 3 end of the switch S3 is connected with a bus power contact power supply.

2. The electric special equipment key start and stop device according to claim 1, characterized in that, The voltage of the starting battery is 28V.

3. The electric special equipment key start and stop device according to claim 1, characterized in that, The start-stop controller is divided into three gears for power-on.

4. A one key start stop method for electric special equipment characterized by, The three gears for power-on are specifically as follows: The first gear is low-voltage control power-on, which is controlled by the switch S1, the S1 is a self-resetting switch, in the power-off state, press the switch S1 and then release, the low-voltage power-on contactor KM1 outputs and then is self-locked through the relay K1, and the low-voltage power-on is maintained; in the power-on state, press and hold the switch S1, the I / O input DI1 of the start-stop controller detects a continuous high level, and it is judged that the operator requires low-voltage power-off, at this time, a low-voltage power-off request is sent to the upper computer, after the request is responded, the I / O output DO1 of the start-stop controller outputs a high level, the relay K1 is unlocked, and the low-voltage power-off is realized. The second gear is for bus power-on, controlled by switch S3, S3 is a self-locking switch, and S3 is in a closed state by default in a normal state, and S3 is initially in an open state in a maintenance and debugging state; after the first gear is powered on, the start-stop controller and the upper computer are powered on and started, and then self-checking is performed. After the self-checking is completed, the start-stop controller I / O input port DI2 detects a high level, and it is judged that the operator requires bus power-on, and then the I / O output controls bus pre-charging, and then power-on; in the second gear power-on state, the switch S3 is disconnected, the power supply of the bus power-on contactor is disconnected, and the second gear is powered off. The third gear is a general load power-on switch, controlled by switch S5, S5 is a self-resetting switch; after the bus is powered on, the switch S5 is pressed, the switch state is locked by the relay K6, and the start-stop controller I / O input port DI3 detects a high level, and it is judged that the operator requires general load power-on, and then the I / O output controls general load pre-charging, and then power-on; in the third gear power-on state, the switch S5 is pressed for a long time, the start-stop controller I / O input port DI3 detects a continuous high level, and it is judged that the operator requires general load power-off, and at this time, a general load power-off request is sent to the upper computer, and after the request is responded, the start-stop controller I / O output port DO2 outputs a high level, the relay K6 is unlocked, and the load is powered off.

5. The electric special equipment key start and stop method of claim 4, wherein, After the third gear is powered on, if special load power-on is required, the special load power-on switch S7 is started, and the start-stop controller receives the switch signal and pre-charges and then powers on the special load; after the special load is used, if power-off is required, the switch S7 can be directly disconnected, and the start-stop controller receives the switch signal and powers off the special load.

6. The electric special equipment key start and stop method of claim 4, wherein, In the power-on state, no matter what gear is in, one-key power-off can be realized by pressing S1 for a long time, and the start-stop controller receives the one-key power-off instruction and sequentially powers off according to the current state, and finally the low-voltage power supply is disconnected.

7. The electric special equipment key start and stop method of claim 4, wherein, In the power-on state, if the start-stop controller fails and cannot control power-off, emergency power-off switches S2 and S6 can be used for emergency power-off.

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