Gear switching method, device, electronic device and storage medium based on EPB state

Abstract

The present invention provides a method, device, electronic device, and storage medium for shifting gears based on the EPB status. The method includes the following steps: obtaining a signal indicating that the vehicle needs to park; sending a parking instruction to the EPB; obtaining the status of the EPB within a target time period; when the EPB status is obtained to be parked, switching the gear to P gear; and when the EPB status is obtained to be consistently non-parked within the target time period, switching the gear to N gear. The method provided by the present invention, after sending a parking instruction to the EPB, obtains the current status of the EPB, preventing the EPB from displaying P gear if it is not parked. This effectively prevents the driver from manually engaging P gear and then, believing the vehicle is safe, directly getting off the vehicle or releasing the brake pedal, which could result in risks such as the vehicle rolling down a slope. The N gear can alert the driver that the vehicle can still move, thereby improving parking safety.

Description

Technical Field

[0001] The present invention relates to the automotive field, and in particular to an EPB state-based gear switching method, device, electronic equipment, and storage medium. Background Art

[0002] More and more models are using electronic braking systems. The VCU can control the EPB to park or unlock based on the driver's shifting intention and the vehicle's working status. Even without driver operation, it can automatically identify the working conditions that require EPB to work and send parking or unlocking instructions to the EPB.

[0003] The current related technology includes: when the driver shifts the gear into P gear or detects that it automatically enters P gear, the EPB electronic parking mechanism performs parking. If the gear signal is switched to R / N / D gear, the EPB is controlled to switch from the parking state to the released state.

[0004] Current electronic brake systems have the following issues: Automatically engaging the EPB after shifting to P can prevent the EPB from engaging due to a malfunction or other reasons. However, if the gear is already in P, the driver may not notice the EPB is engaged and may believe the vehicle is immobile, posing a safety hazard.

[0005] In view of this, the present invention is proposed. Summary of the Invention

[0006] The present invention provides a gear switching method, device, electronic device and storage medium based on EPB status to solve the technical problem of gear display error in the prior art.

[0007] A first aspect of the present invention provides a gear switching method based on an EPB state, comprising the following steps:

[0008] Obtaining a signal that the vehicle needs to park;

[0009] Send parking command to EPB;

[0010] Obtaining the status of the EPB within a target time period;

[0011] When it is determined that the EPB is in parking state, the gear is switched to P gear;

[0012] When it is obtained that the state of the EPB is always in the non-parking state within the target time period, the gear is switched to the N gear.

[0013] In this solution, after issuing a parking command to the EPB, the system then obtains the EPB's current state. If the EPB is not parked, it repeatedly issues parking commands until the EPB is parked. If the EPB remains not parked within a target time period, the vehicle is shifted to P. This prevents the EPB from displaying P when the vehicle is not parked, effectively preventing the driver from manually engaging P and then exiting the vehicle or releasing the brake pedal, assuming the vehicle is safe, which could lead to risks such as rolling down a slope. The N gear position alerts the driver that the vehicle can still be moved, thereby improving parking safety.

[0014] It can be understood that the VCU mentioned in this article refers to the vehicle control unit (VCU), the core electronic control unit used to control the decision-making of the car; EPB refers to the electronic parking system (EPB), which controls the parking brake through electronic circuits; the function of the EPB is the same as that of a mechanical lever handbrake; the Ready state means that the vehicle has made all preparations, has been successfully started, and is ready to set off at any time.

[0015] In a further embodiment of the present invention, after the gear is switched to N gear, the gear switching method further includes:

[0016] Calculating the number of times a parking command is sent to the EPB;

[0017] Determine the difference between the number of transmissions and a preset threshold: when the number of transmissions is less than the preset threshold, repeatedly send a parking instruction to the EPB until the EPB is in the parking state and the gear is switched to P gear; when the number of transmissions is greater than the preset threshold, stop sending the parking instruction to the EPB and keep the gear in N gear.

[0018] In this solution, the number of times the parking command is sent is preset. When the EPB receives the parking command for the preset number of times and still fails to park the vehicle, the gear position is maintained at N gear.

[0019] In a further embodiment of the present invention, the signal is a driver's request to switch to P gear and / or the vehicle is in a target operating condition requiring parking.

[0020] In this solution, when the driver intends to switch to P gear and in the target situation, a switch to P gear command will be issued, and a parking command will be sent to the EPB at the same time, so that the EPB starts to clamp until parking is completed.

[0021] In a further embodiment of the present invention, the target operating condition includes one of the following operating conditions: the driver leaves the vehicle, the vehicle changes from a Ready state to a Non-Ready state, the charging and discharging gun is connected to the vehicle, and the battery voltage is low.

[0022] In a further solution of the present invention, after the gear is switched to P gear or N gear, P gear or N gear is displayed accordingly on the target interface.

[0023] Regarding the method of reminding the driver, the present invention provides multiple optional solutions. One is to send a warning message to a portable smart device, which includes but is not limited to: mobile phones, electronic watches and other portable devices. The portable smart device will issue an alarm according to the specific situation of the device; the second is to use an audio device to warn, by controlling the audio device to emit audio to remind the driver that the EPB parking has failed, which can be a harsh beeping sound or a voice broadcast. It should be noted that multiple reminder methods should be reasonably set according to needs, rather than being limited to only one of them.

[0024] In a further embodiment of the present invention, the current state of the EPB includes: unlocked state, unlocking state, parked state, and parked state, wherein the non-parked state includes: unlocked state, unlocking state, and parked state.

[0025] A second aspect of the present invention provides a gear switching device, comprising:

[0026] a collection unit configured to obtain a signal that the vehicle needs to park;

[0027] a command issuing unit configured to issue a parking command to the EPB;

[0028] a state acquisition unit configured to acquire the state of the EPB within a target time period;

[0029] a first gear shifting unit configured to shift the gear to P gear when the state acquiring unit acquires that the state of the EPB is the parking state;

[0030] The second gear shifting unit is configured to shift the gear to N gear when the state acquiring unit acquires that the state of the EPB is always in the parking state within the target time period.

[0031] In a further embodiment of the present invention, the gear switching device further comprises:

[0032] a calculation unit configured to calculate a number of times a parking command is sent to the EPB;

[0033] A judging unit, configured to judge the difference between the number of transmission times and a preset threshold;

[0034] In which, the instruction issuing unit is configured to repeatedly send parking instructions to the EPB when the number of sending times is less than a preset threshold until the status acquisition unit obtains that the status of the EPB is a parking state; the instruction issuing unit is also configured to stop sending parking instructions to the EPB when the number of sending times is greater than a preset threshold.

[0035] The gear switching device further includes a display unit, wherein the display unit is configured to be

[0036] After the gear is switched to P gear or the second gear switching unit switches the gear to N gear, P gear or N gear is displayed accordingly on the target interface.

[0037] A third aspect of the present invention provides an electronic device, comprising:

[0038] one or more processors;

[0039] a storage device having one or more programs stored thereon;

[0040] When the one or more programs are executed by the one or more processors, the one or more processors implement a gear switching method as described in the third aspect of the present invention.

[0041] A fourth aspect of the present invention provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the gear switching method provided in the first aspect of the present invention.

[0042] Compared with the prior art, the present invention has the following beneficial effects:

[0043] The present invention issues a parking command to the EPB and then obtains the EPB's current state. When the EPB's current state is not parked, the parking command is repeatedly issued until the EPB is parked. If the EPB remains not parked within a target time period, the gear is shifted to P. This prevents the EPB from displaying P when the vehicle is not parked, effectively preventing the driver from manually engaging P and then exiting the vehicle or releasing the brake pedal, believing the vehicle is safe, which could lead to risks such as the vehicle rolling down a slope. The N gear alerts the driver that the vehicle can still move, thereby improving parking safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0045] Figure 1 A flowchart of the steps of a gear shifting method based on EPB status provided in one embodiment of the present invention;

[0046] Figure 2 A flowchart of the steps of a gear shifting method based on EPB status provided in one embodiment of the present invention;

[0047] Figure 3 This is a schematic structural diagram of a gear switching device provided in one embodiment of the present invention.

[0048] Reference numerals

[0049] 10. Gear switching device; 100. Data collection unit;

[0050] 200, instruction issuing unit; 300, status acquiring unit;

[0051] 400, first gear shift unit; 500, second gear shift unit;

[0052] 600. Calculation unit; 700. Judgment unit. DETAILED DESCRIPTION

[0053] In order to make the above and other features and advantages of the present invention more clear, the present invention is further described below with reference to the accompanying drawings. It should be understood that the specific embodiments given herein are for the purpose of explaining to those skilled in the art and are only exemplary and not restrictive.

[0054] The present invention provides a general inventive concept, which addresses the technical problem of gear position display errors in the prior art, and adjusts the actual gear position by obtaining the status of the EPB, thereby effectively avoiding gear position display errors.

[0055] Please refer to Figure 1 Based on a general inventive concept, a first aspect of the present invention provides a gear shifting method based on an EPB state, comprising the following steps:

[0056] S100: Obtaining a signal that the vehicle needs to park;

[0057] In a further embodiment of the present invention, the signal is a driver's request to switch to P gear and / or the vehicle is in a target operating condition requiring parking.

[0058] In this solution, when the driver intends to switch to P gear and in the target situation, a switch to P gear command will be issued, and a parking command will be sent to the EPB at the same time, so that the EPB starts to clamp until parking is completed.

[0059] S200: Sending a parking instruction to the EPB;

[0060] S300: Acquire the status of the EPB within a target time period;

[0061] In a further embodiment of the present invention, the current state of the EPB includes: unlocked state, unlocking state, parked state, and parked state, wherein the non-parked state includes: unlocked state, unlocking state, and parked state.

[0062] S400: When it is determined that the EPB is in a parking state, the gear is switched to P gear;

[0063] S500: When it is obtained that the state of the EPB is always in the non-parking state within the target time period, the gear is switched to the N gear.

[0064] In a further solution of the present invention, after the gear is switched to P gear or N gear, P gear or N gear is displayed accordingly on the target interface.

[0065] In this solution, after issuing a parking command to the EPB, the system then obtains the EPB's current state. If the EPB is not parked, it repeatedly issues parking commands until the EPB is parked. If the EPB remains not parked within a target time period, the vehicle is shifted to P. This prevents the EPB from displaying P when the vehicle is not parked, effectively preventing the driver from manually engaging P and then exiting the vehicle or releasing the brake pedal, assuming the vehicle is safe, which could lead to risks such as rolling down a slope. The N gear position alerts the driver that the vehicle can still be moved, thereby improving parking safety.

[0066] It's worth noting that the main body used to implement the EPB-based gear shifting method is generally the vehicle control unit (VCU), but it can also be appropriately configured based on the vehicle's actual needs. The target time period in this article should be set in advance. For example, if the current time period is within 10 seconds, the gear will be switched to Neutral if the vehicle remains in the non-parked state within 10 seconds after the EPB issues the parking command.

[0067] It can be understood that the VCU mentioned in this article refers to the vehicle control unit (VCU), the core electronic control unit used to control the decision-making of the car; EPB refers to the electronic parking system (EPB), which controls the parking brake through electronic circuits; the function of the EPB is the same as that of a mechanical lever handbrake; the Ready state means that the vehicle has made all preparations, has been successfully started, and is ready to set off at any time.

[0068] Please refer to Figure 2 In a further embodiment of the present invention, after the gear is switched to N gear, the gear switching method further includes:

[0069] S600: Calculating the number of times the parking command is sent to the EPB;

[0070] S700: Determine the difference between the number of transmissions and a preset threshold:

[0071] S810: When the number of times the command is sent is less than a preset threshold, repeatedly sending a parking command to the EPB until the EPB is in a parking state and the gear is switched to P.

[0072] S820: When the number of transmissions is greater than a preset threshold, stop sending the parking instruction to the EPB and keep the gear position at N gear.

[0073] In this solution, the number of times the parking command is sent is preset. When the EPB receives the parking command for the preset number of times and still fails to park the vehicle, the gear position is maintained at N gear.

[0074] Furthermore, the threshold value generally ranges from 2 to 3 times. When the threshold value is 3, a total of three parking commands are sent. At the same time, the time for repeatedly sending the parking command to the EPB should be set according to the specific situation of the target time period. For example, if the target time period is 10 seconds, when the threshold value is 3, the 10-second time period is divided into three parts. Starting from the first parking command, the other two parking commands are sent in 3-4 seconds and 6-7 seconds respectively.

[0075] In a further embodiment of the present invention, the target operating condition includes one of the following operating conditions: the driver leaves the vehicle, the vehicle changes from a Ready state to a Non-Ready state, the charging and discharging gun is connected to the vehicle, and the battery voltage is low.

[0076] Regarding the method of reminding the driver, the present invention provides multiple optional solutions. One is to send a warning message to a portable smart device, which includes but is not limited to: mobile phones, electronic watches and other portable devices. The portable smart device will issue an alarm according to the specific situation of the device; the second is to use an audio device to warn, by controlling the audio device to emit audio to remind the driver that the EPB parking has failed, which can be a harsh beeping sound or a voice broadcast. It should be noted that multiple reminder methods should be reasonably set according to needs, rather than being limited to only one of them.

[0077] In a further embodiment of the present invention, the current state of the EPB includes: unlocked state, unlocking state, parked state, and parked state, wherein the non-parked state includes: unlocked state, unlocking state, and parked state.

[0078] Please refer to Figure 3 Based on a general inventive concept, a second aspect of the present invention provides a gear shifting device 10, comprising:

[0079] The acquisition unit 100 is configured to acquire a signal indicating that the vehicle needs to park;

[0080] The command issuing unit 200 is configured to issue a parking command to the EPB;

[0081] The state acquisition unit 300 is configured to acquire the state of the EPB within a target time period;

[0082] A first gear shifting unit 400 is configured to shift the gear to P gear when the state acquiring unit acquires that the state of the EPB is the parking state;

[0083] The second gear shifting unit 500 is configured to shift the gear to N gear when the state acquiring unit acquires that the state of the EPB is always in the parking state within the target time period.

[0084] In a further embodiment of the present invention, the gear switching device 10 further includes:

[0085] a calculation unit 600 configured to calculate the number of times a parking command is sent to the EPB;

[0086] The judging unit 700 is configured to judge the difference between the number of transmission times and a preset threshold;

[0087] In which, the instruction issuing unit is configured to repeatedly send parking instructions to the EPB when the number of sending times is less than a preset threshold until the status acquisition unit obtains that the status of the EPB is a parking state; the instruction issuing unit is also configured to stop sending parking instructions to the EPB when the number of sending times is greater than a preset threshold.

[0088] The gear switching device 10 further includes a display unit, which is configured to display the P gear or the N gear correspondingly on the target interface after the first gear switching unit switches the gear to the P gear or the second gear switching unit switches the gear to the N gear.

[0089] In order to better remind the driver, the present invention provides a preferred solution, that is, the gear switching device 10 further includes:

[0090] An information sending module, used for sending parking failure information to a portable smart device;

[0091] And an audio module for issuing an audio warning after parking failure.

[0092] The information sending module sends warning information to portable smart devices, including but not limited to: mobile phones, electronic watches and other portable devices. The portable smart devices will issue warnings based on the specific conditions of the devices; the audio module is controlled to emit audio to remind the driver that EPB parking has failed. It can use a harsh beep sound or voice broadcast.

[0093] Based on a general inventive concept, a third aspect of the present invention provides an electronic device, comprising:

[0094] one or more processors;

[0095] a storage device having one or more programs stored thereon;

[0096] When the one or more programs are executed by the one or more processors, the one or more processors implement a gear switching method as described in the third aspect of the present invention.

[0097] Based on a general inventive concept, the fourth aspect of the present invention provides a computer-readable storage medium having a computer program stored thereon, characterized in that when the computer program is executed by a processor, the gear switching method provided by the first aspect of the present invention is implemented.

[0098] Compared with the prior art, the present invention has the following beneficial effects:

[0099] The present invention issues a parking command to the EPB and then obtains the EPB's current state. When the EPB's current state is not parked, the parking command is repeatedly issued until the EPB is parked. If the EPB remains not parked within a target time period, the gear is shifted to P. This prevents the EPB from displaying P when the vehicle is not parked, effectively preventing the driver from manually engaging P and then exiting the vehicle or releasing the brake pedal, believing the vehicle is safe, which could lead to risks such as the vehicle rolling down a slope. The N gear alerts the driver that the vehicle can still move, thereby improving parking safety.

[0100] Furthermore, those skilled in the art should understand that if the gear switching method, device, electronic device and storage medium based on the EPB state provided in the embodiment of the present invention are combined and replaced by all or part of the sub-modules involved through fusion, simple change, mutual transformation, etc., such as the placement and movement of each component; or the product they constitute is set as one piece; or a detachable design; all the combined components can form a device / device / system with specific functions, and using such a device / device / system to replace the corresponding components of the present invention also falls within the scope of protection of the present invention.

[0101] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A gear shifting method based on EPB status, characterized in that: The following steps are involved: Obtaining a signal that the vehicle needs to park; Send parking command to EPB; Obtaining the status of the EPB within a target time period; When it is determined that the EPB is in parking state, the gear is switched to P gear; When it is determined that the EPB is always in a non-parking state within the target time period, the gear is switched to N gear; Calculating the number of times a parking command is sent to the EPB; Determine the difference between the number of transmissions and a preset threshold: when the number of transmissions is less than the preset threshold, repeatedly send a parking instruction to the EPB until the EPB is in the parking state and the gear is switched to P gear; when the number of transmissions is greater than the preset threshold, stop sending the parking instruction to the EPB and keep the gear in N gear.

2. The method for shifting gears based on EPB status according to claim 1, characterized in that: The signal is a driver's request to switch to P gear and / or the vehicle is in a target operating condition requiring parking.

3. The method for shifting gears based on EPB status according to claim 2, characterized in that: The target operating condition includes one of the following operating conditions: the driver leaves the vehicle, the vehicle changes from a Ready state to a Non-Ready state, the charging and discharging gun is connected to the vehicle, and the battery voltage is low.

4. The method for shifting gears based on EPB status according to claim 3, characterized in that: The gear switching method further includes: after the gear is switched to P gear or N gear, correspondingly displaying P gear or N gear on the target interface.

5. A gear switching device, characterized in that: include: a collection unit configured to obtain a signal that the vehicle needs to park; a command issuing unit configured to issue a parking command to the EPB; a state acquisition unit configured to acquire the state of the EPB within a target time period; a first gear shifting unit configured to shift the gear to P gear when the state acquiring unit acquires that the state of the EPB is the parking state; a second gear shifting unit configured to shift the gear to N gear when the state acquiring unit acquires that the state of the EPB is always in the parking state within the target time period; a calculation unit configured to calculate a number of times a parking command is sent to the EPB; A judging unit, configured to judge the difference between the number of transmission times and a preset threshold; In which, the instruction issuing unit is configured to repeatedly send parking instructions to the EPB when the number of sending times is less than a preset threshold until the status acquisition unit obtains that the status of the EPB is a parking state; the instruction issuing unit is also configured to stop sending parking instructions to the EPB when the number of sending times is greater than a preset threshold.

6. The gear switching device according to claim 5, characterized in that: The gear switching device also includes a display unit, which is configured to display P gear or N gear correspondingly on the target interface after the first gear switching unit switches the gear to P gear or the second gear switching unit switches the gear to N gear.

7. An electronic device, characterized in that: include: one or more processors; a storage device having one or more programs stored thereon; When the one or more programs are executed by the one or more processors, the one or more processors implement the gear shifting method according to any one of claims 1 to 4.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the gear switching method according to any one of claims 1 to 4 is implemented.

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