Ice-breaking method, device, new energy vehicle and computer medium of braking device

Abstract

The present invention discloses an ice-breaking method, device, new energy vehicle and computer-readable storage medium for a braking device, which is applied to a new energy vehicle equipped with a temperature acquisition device and a braking device, and includes: controlling the temperature acquisition device to obtain the ambient temperature of the surrounding environment of the new energy vehicle, and comparing the ambient temperature with a preset ambient temperature threshold to obtain a first comparison result; when the first comparison result is that the ambient temperature is lower than the ambient temperature threshold, performing a freezing risk detection on the braking device to obtain a freezing detection result; when the freezing detection result is that the braking device has a freezing risk, controlling the braking device to perform an ice-breaking operation according to the preset ice-breaking parameters. The technical solution of the present invention can achieve the technical effect of enabling the electronic brake system to perform an ice-breaking operation in time when it automatically recognizes that the braking device has a freezing risk.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular, to an ice-breaking method and device for a braking device, a new energy vehicle, and a computer-readable storage medium. Background Art

[0002] With the continuous development of the new energy vehicle industry and autonomous driving technology, more and more technicians choose to configure a wire-controlled braking system in new energy vehicles, so that the wire-controlled braking system can complete active braking operations according to the external demands of the driver or the braking demands obtained through internal calculations.

[0003] However, when a new energy vehicle is in a low-temperature environment, it often happens that due to rainfall or snowfall in the low-temperature environment, the brake is adhered by ice, which further causes the brake to be unable to generate sufficient braking force when performing braking operations, thus threatening the driver's life safety to a great extent. And the current wire-controlled braking system cannot well identify and prevent such situations. Therefore, how to identify and solve the problem that the brake cannot generate sufficient braking force when performing braking operations due to being adhered by ice in a low-temperature environment has also become an urgent problem to be solved in the industry. Summary of the Invention

[0004] Embodiments of the present invention provide an ice-breaking method and device for a braking device, a new energy vehicle, and a computer-readable storage medium, aiming to enable the wire-controlled braking system to perform ice-breaking operations in a timely manner when automatically identifying that there is a risk of freezing of the braking device, thereby avoiding the situation of insufficient braking force caused by the risk of freezing of the braking device, and greatly improving the braking safety of new energy vehicles.

[0005] The present invention provides an ice-breaking method for a braking device. The method is applied to a new energy vehicle configured with a temperature acquisition device and a braking device. The ice-breaking method for the braking device includes the following steps:

[0006] Control the temperature acquisition device to obtain the ambient temperature value of the surrounding environment of the new energy vehicle, and compare the ambient temperature value with a preset ambient temperature threshold to obtain a first comparison result;

[0007] When the first comparison result is that the ambient temperature value is lower than the ambient temperature threshold, perform a freezing risk detection on the braking device to obtain a freezing detection result;

[0008] When the freezing detection result is that there is a freezing risk for the braking device, control the braking device to perform an ice-breaking operation according to preset ice-breaking parameters.

[0009] Further, the freezing detection result includes that there is a freezing risk in the braking device. The step of detecting the freezing risk of the braking device and obtaining the freezing detection result includes:

[0010] Obtain a preset first rated current value, drive the braking device according to the first rated current value, and obtain the displacement value generated by the braking device;

[0011] Compare the displacement value with a preset displacement threshold to obtain a second comparison result. When the second comparison result is that the displacement value is less than the displacement threshold, determine that the freezing detection result is that there is a freezing risk in the braking device.

[0012] Further, the step of detecting the freezing risk of the braking device and obtaining the freezing detection result further includes:

[0013] Drive the braking device according to the first rated current value and obtain the first braking force value generated by the braking device;

[0014] Obtain the freezing detection result based on the first braking force value.

[0015] Further, the step of obtaining the freezing detection result based on the first braking force value includes:

[0016] Obtain a preset first braking force threshold, and compare the first braking force value with the first braking force threshold to obtain a third comparison result;

[0017] When the third comparison result is that the first braking force value is lower than the first braking force threshold, determine that the freezing detection result is that there is a freezing risk in the braking device.

[0018] Further, the step of controlling the braking device to perform an ice-breaking operation according to preset ice-breaking parameters includes:

[0019] Obtain preset ice-breaking parameters, and determine the second rated current value included in the ice-breaking parameters;

[0020] Control the braking device to perform an overall movement according to the second rated current value to perform the ice-breaking operation.

[0021] Further, after the step of controlling the braking device to perform an ice-breaking operation according to preset ice-breaking parameters, the method further includes:

[0022] Detect the braking device, and obtain the second braking force value generated by the braking device when it is detected that the braking device performs a braking operation;

[0023] Determine whether there is a risk of freezing of the braking device based on the second braking force value.

[0024] Further, the step of determining whether there is a risk of freezing of the braking device based on the second braking force value includes:

[0025] Obtain a preset second braking force threshold, and compare the second braking force value with the second braking force threshold to obtain a fourth comparison result;

[0026] When the fourth comparison result is that the second braking force value is less than the second braking force threshold, it is determined that there is a risk of freezing of the braking device.

[0027] In addition, to achieve the above object, the present invention further provides an ice-breaking device for a braking device. The device is applied to a new energy vehicle configured with a temperature acquisition device and a braking device. The device includes:

[0028] A comparison module, configured to control the temperature acquisition device to obtain the ambient temperature of the surrounding environment of the new energy vehicle, and compare the ambient temperature with a preset ambient temperature threshold to obtain a first comparison result;

[0029] A detection module, configured to perform a freezing risk detection on the braking device and obtain a freezing detection result when the first comparison result is that the ambient temperature is lower than the ambient temperature threshold;

[0030] An ice-breaking module, configured to control the braking device to perform an ice-breaking operation according to a preset ice-breaking parameter when the freezing detection result is that there is a risk of freezing of the braking device.

[0031] In addition, to achieve the above object, the present invention further provides a new energy vehicle, which includes: a memory, a processor, and an ice-breaking program for a braking device stored on the memory and executable on the processor. When the ice-breaking program for the braking device is executed by the processor, the steps of the ice-breaking method for the braking device as described above are implemented.

[0032] In addition, to achieve the above object, the present invention further provides a computer-readable storage medium, on which an ice-breaking program for a braking device is stored. When the ice-breaking program for the braking device is executed by a processor, the steps of the ice-breaking method for the braking device as described above are implemented.

[0033] The ice-breaking method, device, new energy vehicle and computer-readable storage medium of the braking device provided by the embodiment of the present invention are applied to a new energy vehicle configured with a temperature acquisition device and a braking device. By controlling the temperature acquisition device to obtain the ambient temperature of the surrounding environment of the new energy vehicle, and comparing the ambient temperature with a preset ambient temperature threshold to obtain a first comparison result; when the first comparison result is that the ambient temperature is lower than the ambient temperature threshold, perform a freezing risk detection on the braking device to obtain a freezing detection result; when the freezing detection result is that there is a freezing risk in the braking device, control the braking device to perform an ice-breaking operation according to the preset ice-breaking parameters.

[0034] In this embodiment, when the new energy vehicle starts, first control the temperature acquisition device configured in the new energy vehicle to collect the surrounding environment of the new energy vehicle to obtain the ambient temperature of the surrounding environment, and input the ambient temperature and the temperature threshold preset by the technician into the data processing device in the new energy vehicle. The data processing device compares the ambient temperature with the ambient temperature threshold to obtain a first comparison result. Then, when the data processing device determines that the first comparison result is that the ambient temperature is lower than the ambient temperature threshold, the new energy vehicle performs a freezing detection on the built-in braking device to obtain the freezing detection result of the braking device. Then, when the new energy vehicle determines that the freezing detection result is that there is a freezing risk in the braking device, the new energy vehicle obtains the ice-breaking parameters preset by the technician, and controls the braking device to perform an ice-breaking operation according to the ice-breaking parameters.

[0035] In this way, the present invention detects the ambient temperature of the surrounding environment of the new energy vehicle, further detects whether there is a freezing risk in the braking device when the ambient temperature is lower than the preset temperature threshold, and then performs an ice-breaking operation when it is determined that there is a freezing risk in the braking device. That is, the present invention uses the temperature value of the surrounding environment detection and the freezing detection of the braking device to solve the situation that the electronic brake system cannot automatically identify the ice adhesion of the braking device due to rainfall or snowfall in a low-temperature environment, thereby achieving the technical effect of enabling the electronic brake system to perform an ice-breaking operation in time when it automatically identifies that there is a freezing risk in the braking device, and then avoiding the situation of insufficient braking force caused by the freezing risk of the braking device, greatly improving the braking safety of the new energy vehicle. Description of the Drawings

[0036] Figure 1 It is a schematic structural diagram of a new energy vehicle in the hardware operating environment related to the solution of the embodiment of the present invention;

[0037] Figure 2 It is a schematic flowchart of the first embodiment of the ice-breaking method of the braking device of the present invention;

[0038] Figure 3Schematic flowchart of the second embodiment of the ice-breaking method of the braking device of the present invention;

[0039] Figure 4 Schematic detailed flowchart involved in an embodiment of the ice-breaking method of the braking device of the present invention;

[0040] Figure 5 Schematic diagram of functional modules involved in an embodiment of the ice-breaking method of the braking device of the present invention.

[0041] The implementation, functional features and advantages of the object of the present invention will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0042] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0043] Please refer to Figure 1 , Figure 1 Schematic diagram of the structure of a new energy vehicle for the hardware operating environment involved in the solution of the embodiment of the present invention.

[0044] The new energy vehicle in the embodiment of the present invention can be a new energy vehicle configured with a temperature acquisition device, various motor controllers and various sensing devices.

[0045] As Figure 1 shown, the new energy vehicle may include: a processor 1001, such as a central processing unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Among them, the communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 may include a display screen (Display) and an input unit such as a keyboard (Keyboard). Optionally, the user interface 1003 may further include a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a wireless fidelity (WI-FI) interface). The memory 1005 may be a high-speed random access memory (Random Access Memory, RAM) or a stable non-volatile memory (Non-Volatile Memory, NVM), such as a disk memory. Optionally, the memory 1005 may also be a storage device independent of the aforementioned processor 1001.

[0046] Those skilled in the art can understand that Figure 1 the structure shown in

[0047] As shown Figure 1 in FIG. 1, the memory 1005 as a storage medium may include an operating system, a data storage module, a network communication module, a user interface module, and an ice-breaking program for the braking device.

[0048] In Figure 1 the new energy vehicle shown in FIG. 2, the network interface 1004 is mainly used for data communication with other devices; the user interface 1003 is mainly used for data interaction with the user; the processor 1001 and the memory 1005 in the new energy vehicle of the present invention may be arranged in the new energy vehicle, and the new energy vehicle calls the ice-breaking program for the braking device stored in the memory 1005 through the processor 1001 and performs the following operations:

[0049] Control the temperature acquisition device to obtain the ambient temperature value of the surrounding environment of the new energy vehicle, and compare the ambient temperature value with a preset ambient temperature threshold to obtain a first comparison result;

[0050] When the first comparison result is that the ambient temperature value is lower than the ambient temperature threshold, perform a freezing risk detection on the braking device and obtain a freezing detection result;

[0051] When the freezing detection result is that there is a freezing risk in the braking device, control the braking device to perform an ice-breaking operation according to preset ice-breaking parameters.

[0052] Further, the processor 1001 may call the ice-breaking program for the braking device stored in the memory 1005 and further perform the following operations:

[0053] Obtain a preset first rated current value, drive the braking device according to the first rated current value, and obtain the displacement value generated by the braking device;

[0054] Compare the displacement value with a preset displacement threshold to obtain a second comparison result. When the second comparison result is that the displacement value is less than the displacement threshold, determine that the freezing detection result is that there is a freezing risk in the braking device.

[0055] Further, the processor 1001 may call the ice-breaking program for the braking device stored in the memory 1005 and further perform the following operations:

[0056] Drive the braking device according to the first rated current value and obtain the first braking force value generated by the braking device;

[0057] Obtain the freezing detection result based on the first braking force value.

[0058] Further, the processor 1001 may call the ice-breaking program of the braking device stored in the memory 1005 and further perform the following operations:

[0059] Obtain a preset first braking force threshold value, and compare the first braking force value with the first braking force threshold value to obtain a third comparison result;

[0060] When the third comparison result is that the first braking force value is lower than the first braking force threshold value, determine that the ice freezing detection result is that there is an ice freezing risk for the braking device.

[0061] Further, the processor 1001 may call the ice-breaking program of the braking device stored in the memory 1005 and further perform the following operations:

[0062] Obtain preset ice-breaking parameters, and determine a second rated current value included in the ice-breaking parameters;

[0063] Control the braking device to perform an overall movement according to the second rated current value to perform the ice-breaking operation.

[0064] Further, the processor 1001 may call the ice-breaking program of the braking device stored in the memory 1005 and further perform the following operations:

[0065] Detect the braking device, and obtain a second braking force value generated by the braking device when it is detected that the braking device performs a braking operation;

[0066] Determine whether there is an ice freezing risk for the braking device based on the second braking force value.

[0067] Further, the processor 1001 may call the ice-breaking program of the braking device stored in the memory 1005 and further perform the following operations:

[0068] Obtain a preset second braking force threshold value, and compare the second braking force value with the second braking force threshold value to obtain a fourth comparison result;

[0069] When the fourth comparison result is that the second braking force value is less than the second braking force threshold value, it is determined that there is an ice freezing risk for the braking device.

[0070] Based on the above new energy vehicle, various embodiments of the ice-breaking method of the braking device of the present invention are provided.

[0071] Please refer to Figure 2 , Figure 2 which is a schematic flowchart of the first embodiment of the ice-breaking method of the braking device of the present invention.

[0072] It should be understood that although the logical order is shown in the flowchart, in some cases, the ice-breaking method of the braking device of the present invention can of course be performed in an order different from that shown or described herein for the steps.

[0073] In this embodiment, the ice-breaking method of the braking device of the present invention may include the following steps:

[0074] Step S10: Control the temperature acquisition device to obtain the ambient temperature value of the surrounding environment of the new energy vehicle, and compare the ambient temperature value with a preset ambient temperature threshold to obtain a first comparison result;

[0075] In this embodiment, the temperature acquisition device may be a temperature sensor that can sense temperature and convert the temperature into an available output signal. Among them, the temperature sensor may be a contact temperature sensor or a non-contact temperature sensor. The specific setting position of the temperature sensor may refer to the setting position of the temperature sensor in other new energy vehicles, and the present invention does not limit this.

[0076] When the new energy vehicle starts, first control the temperature acquisition device configured in the new energy vehicle to detect the surrounding environment of the new energy vehicle to obtain the ambient temperature value of the surrounding environment. The new energy vehicle inputs the obtained ambient temperature value and the ambient temperature threshold preset by the technician into the data processing device configured in the new energy vehicle, and the data processing device compares the ambient temperature value with the ambient temperature threshold to obtain a first comparison result.

[0077] Exemplarily, for example, please follow Figure 4 , Figure 4 FIG. is a detailed flowchart of an embodiment of the ice-breaking method of the braking device of the present invention. When the new energy vehicle starts, first control the metal temperature sensor configured in the new energy vehicle through the wire control braking system integrated on the internal main control chip, and detect the surrounding environment of the new energy vehicle through the metal temperature sensor to obtain the ambient temperature value corresponding to the surrounding environment. At the same time, the new energy vehicle reads the built-in memory to obtain the ambient temperature threshold pre-stored by the technician, and inputs the ambient temperature value and the ambient temperature threshold into the data processing device configured in the new energy vehicle. After that, the data processing device compares the ambient temperature value with the ambient temperature threshold to obtain a first comparison result.

[0078] It should be noted that in this embodiment, the environmental temperature threshold is the temperature value of the environment that easily causes the above-mentioned braking device to have a freezing risk due to rainfall or snowfall. This environmental temperature threshold can be obtained by technicians at multiple experimental sites, or can be set and adjusted by technicians according to the driving environment of the above-mentioned new energy vehicle. Of course, the numerical value of this environmental temperature threshold can also be adjusted by the driver of the new energy vehicle according to his own actual situation, and the present invention also does not limit this.

[0079] Step S20: When the first comparison result is that the environmental temperature value is lower than the environmental temperature threshold, perform a freezing risk detection on the braking device and obtain a freezing detection result;

[0080] In this embodiment, the freezing detection result is the result obtained by the electronic brake system in the new energy vehicle performing a freezing risk detection on the braking device when the new energy vehicle starts. This freezing detection result consists of the braking device having a freezing risk and the braking device not having a freezing risk.

[0081] Exemplarily, for example, when the new energy vehicle determines that the environmental temperature value is lower than the environmental temperature threshold, the new energy vehicle uses the above-mentioned electronic brake system to call the detection device to perform a freezing risk detection on the braking device configured in the new energy vehicle, and obtains a freezing detection result corresponding to this freezing risk detection.

[0082] Further, in a feasible embodiment, the step of "performing a freezing risk detection on the braking device and obtaining a freezing detection result" in the above step S20 may specifically include:

[0083] Step S201: Obtain a preset first rated current value, drive the braking device according to the first rated current value, and obtain the displacement value generated by the braking device;

[0084] Step S202: Compare the displacement value with a preset displacement threshold to obtain a second comparison result. When the second comparison result is that the displacement value is less than the displacement threshold, determine that the freezing detection result is that the braking device has a freezing risk;

[0085] In this embodiment, the first rated current value is the minimum current value pre-set by technicians that can cause the braking device to displace. The numerical value of this first rated current value can be obtained by technicians in the laboratory and stored in the memory before the new energy vehicle leaves the factory for the wire control braking system to read and use. Of course, this first rated current value can also be modified by technicians or the driver of this new energy vehicle according to the actual driving conditions and the environment of the vehicle. The present invention does not limit this. Similarly, the displacement threshold is the minimum displacement value corresponding to when there is no freezing risk for the braking device pre-set by technicians. Similarly, this displacement threshold can also be modified by technicians or the driver of this new energy vehicle according to the actual driving conditions and the environment of the vehicle. The present invention also does not limit this.

[0086] Exemplarily, for example, the new energy vehicle reads the above-mentioned memory to obtain the first rated current value pre-set by technicians, and controls the above-mentioned wire control braking system to control the above-mentioned braking device according to this first rated current value. At the same time, the new energy vehicle detects the displacement value generated by the braking device through a built-in displacement sensor, and reads the memory to obtain the displacement threshold pre-set by technicians. After that, the new energy vehicle inputs the displacement threshold and the displacement value into the above-mentioned data processing device together. The data processing device compares the displacement value with the displacement threshold to obtain a second comparison result. When the second comparison result is that the displacement value is less than the displacement threshold, the new energy vehicle determines that there is a freezing risk for the braking device.

[0087] Furthermore, in a feasible embodiment, the step of "performing freezing risk detection on the braking device and obtaining a freezing detection result" in the above step S20 may further include:

[0088] Step S203: Drive the braking device according to the first rated current value and obtain the first braking force value generated by the braking device;

[0089] Step S204: Obtain the freezing detection result based on the first braking force value;

[0090] Exemplarily, for example, the new energy vehicle reads the above-mentioned memory to obtain the above first rated current value, and controls the above-mentioned wire control braking system to control the above-mentioned braking device according to this first rated current value. At the same time, the new energy vehicle detects the braking force generated by the braking device through a built-in force sensor, and determines the first braking force value corresponding to the braking force. The new energy vehicle then obtains the above freezing detection result based on the first braking force value.

[0091] Furthermore, in a feasible embodiment, the above step S204 may specifically include:

[0092] Step S2041: Obtain a preset first braking force threshold, and compare the first braking force value with the first braking force threshold to obtain a third comparison result;

[0093] Step S2042: When the third comparison result indicates that the first braking force value is lower than the first braking force threshold, determine that the ice freezing detection result is that there is an ice freezing risk for the braking device;

[0094] In this embodiment, the first braking force threshold is the minimum value of the braking force that should be generated by the braking device preset by the technician when there is no ice freezing risk. The numerical value of this first braking force threshold can be modified by the technician or the driver of this new energy vehicle according to the actual driving situation and the environment where the vehicle is located. The present invention does not limit this.

[0095] Exemplarily, for example, the new energy vehicle reads the above-mentioned memory to obtain the first braking force threshold preset by the technician, and inputs the first braking force threshold and the above-mentioned obtained first braking force value into the above-mentioned data processing device. The data processing device compares the first braking force value with the first braking force threshold to obtain a third comparison result. When the third comparison result is that the first braking force value is less than the first braking force threshold, the new energy vehicle determines that there is an ice freezing risk for the braking device.

[0096] Step S30: When the ice freezing detection result is that there is an ice freezing risk for the braking device, control the braking device to perform an ice breaking operation according to the preset ice breaking parameters;

[0097] Exemplarily, for example, when the new energy vehicle determines that the ice freezing detection result is that there is an ice freezing risk for the braking device, the new energy vehicle reads the above-mentioned memory to obtain the ice breaking parameters preset by the technician, and controls the above-mentioned braking device to perform an ice breaking operation based on the ice breaking parameters.

[0098] Further, in a feasible embodiment, the above-mentioned step S30 may specifically include:

[0099] Step S301: Obtain the preset ice breaking parameters, and determine the second rated current value included in the ice breaking parameters;

[0100] Step S302: Control the braking device to perform overall movement to execute the ice breaking operation according to the second rated current value;

[0101] In this embodiment, the second rated current value is the minimum current value preset by the technician that can cause the braking device to generate displacement in the ice frozen state and achieve the ice breaking effect, that is, the braking device can generate sufficient displacement and achieve the ice breaking effect at this second rated current.

[0102] Exemplarily, for example, asFigure 4 As shown, when the new energy vehicle determines that there is a risk of freezing in the braking device based on the above-mentioned freezing detection result, the new energy vehicle reads the above-mentioned memory to obtain the ice-breaking parameters pre-stored by the technician, and determines the second rated current value included in the ice-breaking parameters. After that, the new energy vehicle controls the above-mentioned wire-controlled braking system to control the braking device to perform an overall movement according to the second rated current to execute the above-mentioned ice-breaking operation.

[0103] In this embodiment, when the new energy vehicle starts, it first controls the temperature acquisition device configured in the new energy vehicle to detect the surrounding environment of the new energy vehicle to obtain the ambient temperature value of the surrounding environment. The new energy vehicle inputs the obtained ambient temperature value and the ambient temperature threshold pre-set by the technician into the data processing device configured in the new energy vehicle. The data processing device compares the ambient temperature value with the ambient temperature threshold to obtain a first comparison result. After that, when the new energy vehicle determines that the ambient temperature value is lower than the ambient temperature threshold, the new energy vehicle calls the detection device through the above-mentioned wire-controlled braking system to perform a freezing risk detection on the braking device configured in the new energy vehicle, and obtains a freezing detection result corresponding to the freezing risk detection. Finally, when the new energy vehicle determines that the freezing detection result is that there is a freezing risk in the braking device, the new energy vehicle reads the above-mentioned memory to obtain the ice-breaking parameters preset by the technician, and controls the above-mentioned braking device to perform an ice-breaking operation based on the ice-breaking parameters.

[0104] In this way, the present invention detects the ambient temperature of the new energy vehicle, and further detects whether there is a freezing risk in the braking device when the ambient temperature is lower than the preset temperature threshold. Furthermore, when it is determined that there is a freezing risk in the braking device, an ice-breaking operation is performed. That is, the present invention uses the detection of the ambient temperature value and the freezing detection of the braking device to solve the problem that the wire-controlled braking system cannot automatically identify the situation where the braking device is adhered by ice due to rainfall or snowfall in a low-temperature environment, thereby achieving the technical effect that the wire-controlled braking system can timely perform an ice-breaking operation when it automatically recognizes that there is a freezing risk in the braking device, avoiding the situation of insufficient braking force caused by the freezing risk of the braking device, and greatly improving the braking safety of the new energy vehicle.

[0105] Furthermore, based on the first embodiment of the ice-breaking method of the braking device of the present invention, a second embodiment of the ice-breaking method of the braking device of the present invention is proposed here.

[0106] Please refer to Figure 3 , Figure 3 which is a schematic flow chart of the second embodiment of the ice-breaking method of the braking device of the present invention. After the above step 30, the ice-breaking method of the braking device of the present invention may further include:

[0107] Step A10: Detect the braking device, and obtain the second braking force value generated by the braking device when it is detected that the braking device performs a braking operation;

[0108] In this embodiment, the new energy vehicle calls the above-mentioned wire control braking system to detect the braking device, and when it is detected that the braking device performs a braking operation, detects the second braking force generated by the braking device to obtain the second braking force value.

[0109] Exemplarily, for example, after the new energy vehicle completes the above ice-breaking operation, it controls the above-mentioned wire control braking system to detect the braking device to determine whether the braking device has received an instruction to perform a braking operation. When the wire control braking system determines that the braking device performs a braking operation, the wire control braking system calls the above-mentioned force sensor to detect the second braking force value generated by the braking device when it performs the braking operation.

[0110] Step A20: Determine whether there is a freezing risk for the braking device based on the second braking force value;

[0111] Exemplarily, for example, the new energy vehicle inputs the obtained second braking force value into the above-mentioned data processing device, and the data processing device determines whether there is still a freezing risk for the braking device based on the second braking force value.

[0112] Further, in a feasible embodiment, the above step A20 may specifically include:

[0113] Step A201: Obtain a preset second braking force threshold, and compare the second braking force value with the second braking force threshold to obtain a fourth comparison result;

[0114] Step A202: When the fourth comparison result is that the second braking force value is less than the second braking force threshold, it is determined that there is a freezing risk for the braking device;

[0115] In this embodiment, the second braking force threshold is the minimum braking force value generated by the braking device when it normally performs a braking operation, which is preset by technicians. The numerical value of the second braking force threshold can be modified by technicians or the driver of the new energy vehicle according to the actual driving situation and the environment of the vehicle. The present invention does not limit this.

[0116] Exemplarily, for example, the new energy vehicle first reads the above-mentioned memory to obtain the second braking force threshold pre-stored by the technician. After that, the new energy vehicle inputs the second braking force threshold and the obtained second braking force value into the above-mentioned data processing device. The data processing device compares the second braking force value with the second braking force threshold to obtain a fourth comparison result. When the fourth comparison result is that the second braking force value is less than the second braking force threshold, the new energy vehicle determines that the braking device still has the above-mentioned freezing risk, and then controls the braking device to perform the ice-breaking operation again. Similarly, when the third comparison result is that the second braking force value is greater than the second braking force threshold, the new energy vehicle determines that the braking device does not have the freezing risk, and thus enters the normal driving stage.

[0117] In this embodiment, the new energy vehicle first calls the above-mentioned wire control braking system to detect the braking device, and when detecting that the braking device performs a braking operation, detects the second braking force generated by the braking device to obtain a second braking force value. After that, the new energy vehicle inputs the obtained second braking force value into the above-mentioned data processing device, and the data processing device determines whether the braking device still has a freezing risk based on the second braking force value.

[0118] In this way, the present invention adopts the method of detecting the braking force value generated when the braking device normally performs a braking operation, and thus determines whether the ice-breaking operation completely eliminates the freezing risk of the braking device based on the braking force value, achieving the purpose of ensuring that the freezing risk of the braking device can be completely eliminated during operation.

[0119] In addition, the present invention also provides an ice-breaking device for a braking device. The ice-breaking device for the braking device is applied to a new energy vehicle configured with a temperature acquisition device and a braking device. Please refer to Figure 5 , Figure 5 which is a schematic diagram of functional modules related to an embodiment of the ice-breaking method for the braking device of the present invention. As Figure 5 shown, the ice-breaking device for the braking device of the present invention includes:

[0120] A comparison module 10, configured to control the temperature acquisition device to obtain the ambient temperature of the surrounding environment of the new energy vehicle, and compare the ambient temperature with a preset ambient temperature threshold to obtain a first comparison result;

[0121] A detection module 20, configured to perform a freezing risk detection on the braking device and obtain a freezing detection result when the first comparison result is that the ambient temperature is lower than the ambient temperature threshold;

[0122] An ice-breaking module 30, configured to control the braking device to perform an ice-breaking operation according to preset ice-breaking parameters when the freezing detection result is that the braking device has a freezing risk.

[0123] Further, the detection module 20 includes:

[0124] A displacement acquisition unit, configured to acquire a preset first rated current value, drive the braking device according to the first rated current value, and acquire the displacement value generated by the braking device;

[0125] A first comparison unit, configured to compare the displacement value with a preset displacement threshold to obtain a second comparison result. When the second comparison result is that the displacement value is less than the displacement threshold, it is determined that the ice freezing detection result is that there is an ice freezing risk for the braking device.

[0126] Further, the detection module 20 further includes:

[0127] A braking measurement unit, configured to drive the braking device according to the first rated current value and acquire the first braking force value generated by the braking device;

[0128] A result acquisition unit, configured to obtain the ice freezing detection result based on the first braking force value.

[0129] Further, the result acquisition unit includes:

[0130] A first braking acquisition subunit, configured to acquire a preset first braking force threshold, and compare the first braking force value with the first braking force threshold to obtain a third comparison result;

[0131] A first braking comparison subunit, configured to determine that the ice freezing detection result is that there is an ice freezing risk for the braking device when the third comparison result is that the first braking force value is lower than the first braking force threshold.

[0132] Further, the ice breaking module 30 includes:

[0133] A parameter acquisition unit, configured to acquire preset ice breaking parameters, and determine a second rated current value included in the ice breaking parameters;

[0134] An ice breaking execution unit, configured to control the braking device to perform an overall movement according to the second rated current value to execute the ice breaking operation.

[0135] Further, the ice breaking module 30 further includes:

[0136] A second detection unit, configured to detect the braking device, and acquire the second braking force value generated by the braking device when it detects that the braking device performs a braking operation;

[0137] A second comparison unit, configured to determine whether there is an ice freezing risk for the braking device based on the second braking force value.

[0138] Further, the second comparison unit includes:

[0139] A second braking comparison sub-unit, configured to obtain a preset second braking force threshold, and compare the second braking force value with the second braking force threshold to obtain a fourth comparison result;

[0140] A second risk result sub-unit, configured to determine that there is a freezing risk for the braking device when the fourth comparison result is that the second braking force value is less than the second braking force threshold.

[0141] In addition, the present invention further provides a new energy vehicle, on which there is an ice-breaking program for the braking device that can run on a processor. When the new energy vehicle executes the ice-breaking program of the braking device, the steps of the ice-breaking method of the braking device as described in any one of the above embodiments are implemented.

[0142] The specific embodiments of the new energy vehicle of the present invention are basically the same as those of the above embodiments of the ice-breaking method of the braking device, and will not be elaborated herein.

[0143] In addition, the present invention further provides a computer-readable storage medium, on which there is stored an ice-breaking program for the braking device. When the ice-breaking program of the braking device is executed by a processor, the steps of the ice-breaking method of the braking device as described in any one of the above embodiments are implemented.

[0144] The specific embodiments of the computer-readable storage medium of the present invention are basically the same as those of the above embodiments of the ice-breaking method of the braking device, and will not be elaborated herein.

[0145] It should be noted that in this article, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such a process, method, article or system. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of another identical element in the process, method, article or system including that element.

[0146] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0147] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-described embodiment methods can be implemented by means of software plus a necessary general hardware platform. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art can be embodied in the form of a software product. This computer software product is stored in a storage medium as described above (such as ROM / RAM, magnetic disk, optical disc), and includes several instructions to enable a new energy vehicle (which can be a new energy vehicle equipped with a temperature acquisition device, various motor controllers, and various sensing devices, etc.) to execute the methods described in the various embodiments of the present invention.

[0148] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. An ice-breaking method for a braking device, characterized in that, The method is applied to a new energy vehicle equipped with a temperature acquisition device and a braking device. The ice-breaking method of the braking device includes the following steps: Control the temperature acquisition device to obtain the ambient temperature value of the surrounding environment of the new energy vehicle, and compare the ambient temperature value with a preset ambient temperature threshold to obtain a first comparison result; When the first comparison result is that the ambient temperature value is lower than the ambient temperature threshold, perform a freezing risk detection on the braking device and obtain a freezing detection result; The performing a freezing risk detection on the braking device and obtaining a freezing detection result includes: Drive the braking device according to a preset first rated current value and obtain the first braking force value generated by the braking device Obtain a preset first braking force threshold, and compare the first braking force value with the first braking force threshold to obtain a third comparison result; When the third comparison result is that the first braking force value is lower than the first braking force threshold, determine that the freezing detection result is that there is a freezing risk in the braking device; When the freezing detection result is that there is a freezing risk in the braking device, control the braking device to perform an ice-breaking operation according to preset ice-breaking parameters.

2. The ice-breaking method of the braking device according to claim 1, characterized in that, The freezing detection result includes that there is a freezing risk in the braking device. The step of performing a freezing risk detection on the braking device and obtaining a freezing detection result includes: Obtain a preset first rated current value, drive the braking device according to the first rated current value and obtain the displacement value generated by the braking device; Compare the displacement value with a preset displacement threshold to obtain a second comparison result. When the second comparison result is that the displacement value is less than the displacement threshold, determine that the freezing detection result is that there is a freezing risk in the braking device.

3. The ice-breaking method of the braking device according to claim 1, characterized in that, The step of controlling the braking device to perform an ice-breaking operation according to preset ice-breaking parameters includes: Obtain preset ice-breaking parameters and determine the second rated current value included in the ice-breaking parameters; Control the braking device to perform an overall movement according to the second rated current value to perform the ice-breaking operation.

4. The ice-breaking method of the braking device according to claim 1, characterized in that, After the step of controlling the braking device to perform an ice-breaking operation according to preset ice-breaking parameters, the method further includes: Detect the braking device, and obtain the second braking force value generated by the braking device when it is detected that the braking device performs a braking operation; Determine whether there is a freezing risk in the braking device based on the second braking force value.

5. The ice-breaking method of the braking device according to claim 4, characterized in that The step of determining whether there is a freezing risk in the braking device based on the second braking force value includes: Obtain a preset second braking force threshold, and compare the second braking force value with the second braking force threshold to obtain a fourth comparison result; When the fourth comparison result is that the second braking force value is less than the second braking force threshold, then determine that there is a freezing risk in the braking device.

6. An ice-breaking device for a braking device, characterized in that, The device is applied to a new energy vehicle equipped with a temperature acquisition device and a braking device. The device includes: A comparison module, configured to control the temperature acquisition device to acquire the ambient temperature of the surrounding environment of the new energy vehicle, and compare the ambient temperature with a preset ambient temperature threshold to obtain a first comparison result; A detection module, configured to perform a freezing risk detection on the braking device and obtain a freezing detection result when the first comparison result is that the ambient temperature is lower than the ambient temperature threshold; The performing a freezing risk detection on the braking device and obtaining a freezing detection result includes: Driving the braking device according to a preset first rated current value and obtaining a first braking force value generated by the braking device Obtaining a preset first braking force threshold, and comparing the first braking force value with the first braking force threshold to obtain a third comparison result; When the third comparison result is that the first braking force value is lower than the first braking force threshold, determining that the freezing detection result is that there is a freezing risk in the braking device; An ice-breaking module, configured to control the braking device to perform an ice-breaking operation according to preset ice-breaking parameters when the freezing detection result is that there is a freezing risk in the braking device.

7. A new energy vehicle, characterized in that, The new energy vehicle includes: a memory, a processor, and an ice-breaking program of the braking device stored on the memory and executable on the processor. When the ice-breaking program of the braking device is executed by the processor, the steps of the ice-breaking method of the braking device according to any one of claims 1 to 5 are implemented.

8. A computer-readable storage medium, characterized in that, An ice-breaking program of the braking device is stored on the computer-readable storage medium. When the ice-breaking program of the braking device is executed by the processor, the steps of the ice-breaking method of the braking device according to any one of claims 1 to 5 are implemented.

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