System and engineering machine for preventing battery discharge

Abstract

The present disclosure relates to a system for preventing the battery from running out of power. In the present disclosure, a power loss protection controller is employed to continuously detect the voltage of the battery of the working machine. If it is detected that the voltage of the battery is lower than a first voltage threshold and continues for more than a set time period in the shutdown state, the main power supply circuit is disconnected, so that the battery can be prevented from running out of power further. In addition, if it is detected that the voltage of the battery is lower than a second voltage threshold and continues for more than a set time period after the start signal of the working machine is detected, an alarm device is started, so that the operator of the working machine is reminded to pay attention to the power situation of the battery.

Description

Technical Field

[0001] This disclosure relates to the fields of engineering machinery and electronic control technology, and more specifically, to a system and engineering machinery for preventing battery depletion. Background Technology

[0002] With the increasing number of onboard electrical appliances, the static power loss of construction machinery also increases accordingly. If the main power supply circuit is not disconnected in time after the construction machinery stops, the battery will be depleted, affecting the normal use of the machinery. Summary of the Invention

[0003] The purpose of this disclosure is to provide a system and engineering machinery for preventing battery depletion, thereby solving at least one of the aforementioned problems existing in the prior art.

[0004] Embodiments of this disclosure provide a system for preventing battery depletion. The system includes a battery depletion protection controller, a circuit breaker, and an alarm device installed on construction machinery. The circuit breaker is located in the main power supply circuit, and the battery depletion protection controller continuously monitors the voltage of the construction machinery's battery.

[0005] When the construction machinery is in a stopped state, if the battery voltage is detected to be lower than a first voltage threshold and remains below a set time period, the low-voltage protection controller will disconnect the circuit breaker to cut off the main power supply circuit; and...

[0006] After the power loss protection controller detects the start-up signal of the construction machinery, if it detects that the voltage of the battery is lower than the second voltage threshold and continues for more than a set time period, the power loss protection controller will activate the alarm device.

[0007] Optionally, the first voltage threshold is 95% of the rated voltage of the battery.

[0008] Optionally, the second voltage threshold is 97% of the battery's rated voltage.

[0009] Optionally, the set time period includes at least one of the following: 10 seconds, 60 seconds.

[0010] Optionally, the alarm device includes at least one of the following: a buzzer, a warning light.

[0011] Optionally, the system further includes an enable switch for activating or deactivating the power loss protection controller.

[0012] Optionally, the system further includes an enable switch for starting or stopping the power loss protection controller.

[0013] Optionally, the power loss protection controller is also communicatively connected to the overall controller of the construction machinery to obtain the power-on signal from the overall controller.

[0014] Optionally, the battery supplies power to the power shortage protection controller, the overall controller, and the alarm device via a power supply branch.

[0015] According to another aspect of this disclosure, an engineering machine is proposed, said engineering machine including the system provided in this disclosure for preventing battery depletion.

[0016] The system and engineering machinery for preventing battery depletion according to embodiments of this disclosure have at least the following advantages:

[0017] In this disclosure, a power loss protection controller is used to continuously monitor the voltage of the battery of the construction machinery. If the battery voltage is detected to be lower than a first voltage threshold and continues for more than a set time period while the machine is stopped, the main power supply circuit is disconnected, thereby preventing the battery from being further depleted.

[0018] In this disclosure, if the battery voltage is detected to be lower than the second voltage threshold and continues for more than a set time period after the start-up signal of the construction machinery is detected, an alarm device is activated to remind the operator of the construction machinery to pay attention to the battery power.

[0019] In this disclosure, the first voltage threshold can be 95% of the rated voltage of the battery, and the second voltage threshold can be 97% of the rated voltage of the battery, thereby reasonably taking corresponding countermeasures according to the degree of battery depletion.

[0020] In this disclosure, the time period can be set to 10 seconds or 60 seconds to avoid incorrectly detecting the battery voltage due to an excessively short duration.

[0021] In this disclosure, the power loss protection controller is communicatively connected to the main controller of the construction machinery in order to obtain the start-up signal from the main controller and thereby take corresponding power loss protection strategies.

[0022] In this disclosure, the battery supplies power to the power loss protection controller, the whole machine controller, and the alarm device through a power supply branch, thereby continuously supplying power to the power loss protection controller, the whole machine controller, and the alarm device regardless of the on / off state of the main power supply circuit, so that the system of this disclosure can continuously protect the battery from power loss. Attached Figure Description

[0023] Other details and advantages of this disclosure will become apparent from the detailed description provided below. It should be understood that the following figures are merely schematic and not drawn to scale, and therefore should not be considered as a limitation of this disclosure. A detailed description will follow with reference to the figures, in which:

[0024] Figure 1 A system for preventing battery depletion is shown according to a specific embodiment of the present disclosure.

[0025] Figure 2 A flowchart illustrating a system for preventing battery depletion according to another specific embodiment of this disclosure is shown. Detailed Implementation

[0026] Embodiments of this disclosure are described below with reference to the accompanying drawings. In the following description, numerous specific details are set forth to enable those skilled in the art to more fully understand and implement this disclosure. However, it will be apparent to those skilled in the art that implementations of this disclosure may not include some of these specific details. Furthermore, it should be understood that this disclosure is not limited to the specific embodiments described. Rather, this disclosure may be practiced with any combination of the features and elements described below, regardless of whether they relate to different embodiments. Therefore, the following aspects, features, embodiments, and advantages are for illustrative purposes only and should not be construed as elements or limitations of the claims unless expressly set forth in the claims.

[0027] Now refer to Figure 1 This illustrates a specific embodiment of a system for preventing battery depletion.

[0028] like Figure 1 As shown, the system includes a power failure protection controller, a circuit breaker, and a buzzer (i.e., an alarm device) installed on the construction machinery.

[0029] Circuit breakers are installed in the main power supply circuit. They are used to control the on / off state of the main power supply circuit. They can be manually closed and opened, or automatically closed and opened by an internal electromagnet-driven actuation mechanism.

[0030] The battery voltage protection controller continuously monitors the voltage of the construction machinery's battery. When the machinery is stopped, if the detected battery voltage is below a first voltage threshold and remains below it for a set period, the controller disconnects the circuit breaker to cut off the main power supply circuit. This prevents further battery depletion.

[0031] After the power outage protection controller detects the start-up signal of the construction machinery, if it detects that the battery voltage is lower than the second voltage threshold and remains below it for a set period of time, the controller will activate the alarm device. This serves as a reminder to the operators of the construction machinery to pay attention to the battery's charge level.

[0032] Those skilled in the art will understand that the specific values ​​of the first voltage threshold and the second voltage threshold can be set by those skilled in the art according to actual circumstances, and these variations do not exceed the protection scope of this disclosure. Preferably, the second voltage threshold is higher than the first voltage threshold. For example, the first voltage threshold can be 95% of the battery's rated voltage, and the second voltage threshold can be 97% of the battery's rated voltage, thereby reasonably taking corresponding countermeasures according to the degree of battery depletion.

[0033] Those skilled in the art will understand that the specific value of the set time period can be set by those skilled in the art according to the actual situation, and these variations do not exceed the protection scope of this disclosure. For example, the set time period can be 10 seconds or 60 seconds to avoid erroneous detection of the battery voltage due to an excessively short duration.

[0034] After the operator of the construction machinery discovers that the main power supply circuit has been disconnected, the operator can operate the enable switch to disable the low-voltage protection controller, then re-close the main power supply circuit, start the construction machinery to charge the battery, and restart the low-voltage protection controller after charging is complete. Alternatively, if the set time period is long (e.g., not less than 60 seconds), the operator may not turn off the enable switch, as this gives them ample time to re-close the main power supply circuit and start the construction machinery to charge the battery.

[0035] Those skilled in the art will understand that the alarm device may include any suitable device, and these variations do not exceed the scope of protection of this disclosure. For example, the alarm device may be a buzzer and / or a warning light, which, when activated, may sound and flash to remind the operator of the construction machinery to pay attention to the battery level.

[0036] Continue as Figure 1 As shown, the system may also include an enable switch. The enable switch is used to activate or deactivate the battery discharge protection controller, thereby enabling or deactivating the battery discharge protection function. Those skilled in the art will understand that the specific structure and type of the enable switch can be selected according to actual circumstances, and these variations do not exceed the scope of this disclosure.

[0037] Continue as Figure 1 As shown, the power outage protection controller also communicates with the overall controller of the construction machinery to obtain the power-on signal from the overall controller. For example, the power outage protection controller can receive the power-on signal from the overall controller via CAN message or by hard-wired detection.

[0038] Continue as Figure 1As shown, the battery supplies power to the power loss protection controller, the whole machine controller, and the alarm device through the power supply branch, thereby continuously supplying power to the power loss protection controller, the whole machine controller, and the alarm device regardless of the on / off state of the main power supply circuit, so that the system of this disclosure can continuously protect the battery from power loss.

[0039] based on Figure 1 The diagram illustrates the principle of a system used to prevent battery depletion. Figure 2 A flowchart illustrating the operation of a system for preventing battery depletion according to another specific embodiment of this disclosure is shown schematically.

[0040] like Figure 2 As shown, after the low-voltage protection function is activated (i.e., after the low-voltage protection controller is activated via the enable switch), the low-voltage protection controller continuously monitors the battery voltage. If no power-on signal is detected (i.e., the construction machinery is in a stopped state), and the battery voltage is below a first voltage threshold (e.g., 95% of the battery's rated voltage) for a set period of time (e.g., 10 seconds), the low-voltage protection controller disconnects the circuit breaker to cut off the main power supply circuit, thereby preventing further battery depletion. If a power-on signal is detected, and the battery voltage is below a second voltage threshold (e.g., 97% of the battery's rated voltage) for a set period of time (e.g., 10 seconds), the low-voltage protection controller activates an alarm device to remind the construction machinery operator to pay attention to the battery's charge level.

[0041] In an exemplary embodiment of this disclosure, a construction machine is also provided, which includes the system provided in this disclosure for preventing battery depletion. The system of this disclosure can be applied to any type of construction machine, such as excavators, bulldozers, cranes, road rollers, etc., and these variations are also within the protection scope of this disclosure.

[0042] Industrial applicability

[0043] In this disclosure, a power loss protection controller is used to continuously monitor the voltage of the battery of the construction machinery. If the battery voltage is detected to be lower than a first voltage threshold and continues for more than a set time period while the machine is stopped, the main power supply circuit is disconnected, thereby preventing the battery from being further depleted.

[0044] In this disclosure, if the battery voltage is detected to be lower than the second voltage threshold and continues for more than a set time period after the start-up signal of the construction machinery is detected, an alarm device is activated to remind the operator of the construction machinery to pay attention to the battery power.

[0045] In this disclosure, the first voltage threshold can be 95% of the rated voltage of the battery, and the second voltage threshold can be 97% of the rated voltage of the battery, thereby reasonably taking corresponding countermeasures according to the degree of battery depletion.

[0046] In this disclosure, the time period can be set to 10 seconds or 60 seconds to avoid incorrectly detecting the battery voltage due to an excessively short duration.

[0047] In this disclosure, the power loss protection controller is communicatively connected to the main controller of the construction machinery in order to obtain the start-up signal from the main controller and thereby take corresponding power loss protection strategies.

[0048] In this disclosure, the battery supplies power to the power loss protection controller, the whole machine controller, and the alarm device through a power supply branch, thereby continuously supplying power to the power loss protection controller, the whole machine controller, and the alarm device regardless of the on / off state of the main power supply circuit, so that the system of this disclosure can continuously protect the battery from power loss.

[0049] While this disclosure has been described above with reference to preferred embodiments, it is not limited thereto. Any modifications and alterations made by those skilled in the art without departing from the spirit and scope of this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope defined in the claims.

Claims

1. A system for preventing battery depletion, characterized in that, The system includes a low-voltage protection controller, a circuit breaker, and an alarm device installed on the construction machinery. The circuit breaker is installed in the main power supply circuit, and the low-voltage protection controller continuously monitors the voltage of the construction machinery's battery. When the construction machinery is in a stopped state, if the voltage of the battery is detected to be lower than a first voltage threshold and continues for more than a set time period, the power failure protection controller will disconnect the circuit breaker to disconnect the main power supply circuit. and, After the power loss protection controller detects the start-up signal of the construction machinery, if it detects that the voltage of the battery is lower than the second voltage threshold and continues for more than a set time period, the power loss protection controller will activate the alarm device.

2. The system according to claim 1, wherein, The first voltage threshold is 95% of the rated voltage of the battery.

3. The system according to claim 1, wherein, The second voltage threshold is 97% of the battery's rated voltage.

4. The system according to claim 1, wherein, The set time period includes at least one of the following: 10 seconds, 60 seconds.

5. The system according to claim 1, wherein, The alarm device includes at least one of the following: a buzzer, a warning light.

6. The system according to claim 1, wherein, The system also includes an enable switch, which is used to activate or deactivate the power loss protection controller.

7. The system according to claim 1, wherein, The power loss protection controller is also communicatively connected to the main controller of the construction machinery to obtain the power-on signal from the main controller.

8. The system according to claim 7, wherein, The battery supplies power to the power loss protection controller, the overall controller, and the alarm device via a power supply branch.

9. An engineering machine, the engineering machine comprising a system for preventing battery depletion according to any one of claims 1-8.

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