CN107891857B - Vehicle braking prompting method and device and vehicle - Google Patents
Vehicle braking prompting method and device and vehicle Download PDFInfo
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- CN107891857B CN107891857B CN201711035052.2A CN201711035052A CN107891857B CN 107891857 B CN107891857 B CN 107891857B CN 201711035052 A CN201711035052 A CN 201711035052A CN 107891857 B CN107891857 B CN 107891857B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
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Abstract
The invention discloses a vehicle braking prompting method, a vehicle braking prompting device and a vehicle, wherein the method comprises the following steps: when a vehicle runs, acquiring the distance between an obstacle located in front of the running direction of the vehicle and the current initial braking state of the vehicle; detecting whether the initial braking state is matched with a target braking state corresponding to the distance; and if the initial braking state is not matched with the target braking state, prompting a driver to adjust the initial braking state to the target braking state. The invention avoids the damage of the braking system when the initial braking state is not matched with the target braking state corresponding to the distance, thereby being beneficial to prolonging the service life of the braking system and being beneficial to the safety of driving.
Description
Technical Field
The invention relates to the technical field of vehicle control, in particular to a vehicle braking prompting method and device and a vehicle.
Background
With the development of automobile technology, automobiles have become one of indispensable vehicles in people's lives. With the increase of the automobile holding capacity, the number of drivers is increasing, and the normative of driving operation becomes an urgent problem to be solved. At present, when a driver brakes a fuel vehicle or a pure electric vehicle, the following braking states exist: when the distance between the vehicle and the vehicle in front of the same lane is far enough, the vehicle emergently treads the brake; or when the distance between the vehicle and the vehicle in front of the same lane is shorter, the brake is lightly braked or not stepped on; or high-speed neutral coasting, etc. Under the conditions, a driver does not adopt a corresponding braking state according to actual road conditions, so that the damage to a braking system is easily caused, and even traffic accidents are caused.
Disclosure of Invention
The invention provides a vehicle braking prompting method and device and a vehicle, and aims to solve the problem that a driver cannot adopt a corresponding braking state according to actual road conditions in the prior art.
The embodiment of the invention provides a vehicle braking prompting method, which comprises the following steps:
when a vehicle runs, acquiring the distance between an obstacle located in front of the running direction of the vehicle and the current initial braking state of the vehicle;
detecting whether the initial braking state is matched with a target braking state corresponding to the distance;
and if the initial braking state is not matched with the target braking state, prompting a driver to adjust the initial braking state to the target braking state.
Preferably, the step of acquiring the current initial braking state of the vehicle comprises:
acquiring the current braking displacement of a brake pedal of the vehicle;
and determining the current initial braking state of the vehicle according to the braking displacement.
Preferably, the step of determining the current initial braking state of the vehicle according to the braking displacement comprises:
if the braking displacement is larger than a preset displacement threshold value, determining that the initial braking state is a re-stepping braking state with the braking force larger than a first preset threshold value;
the step of detecting whether the initial braking state is matched with the target braking state corresponding to the distance includes:
when the initial braking state is the heavy-pedal braking state, detecting whether the distance is greater than a first preset distance threshold value;
and if the distance is greater than the first preset distance threshold, determining that the initial braking state is not matched with the target braking state corresponding to the distance.
Preferably, the step of determining the current initial braking state of the vehicle according to the braking displacement comprises:
if the brake displacement is smaller than or equal to a preset displacement threshold value and a brake signal is obtained, determining that the initial brake state is a light-stepping brake state with the brake force smaller than a second preset threshold value;
the step of detecting whether the initial braking state is matched with the target braking state corresponding to the distance includes:
when the initial braking state is the light-stepping braking state, detecting whether the distance is smaller than a second preset distance threshold value;
and if the distance is smaller than a second preset distance threshold value, determining that the initial braking state is not matched with the target braking state corresponding to the distance.
Preferably, the step of determining the current initial braking state of the vehicle according to the braking displacement comprises:
if the braking displacement is smaller than or equal to a preset displacement threshold value and a braking signal is not obtained, determining that the initial braking state is an unbraked state with zero braking force;
the step of detecting whether the initial braking state is matched with the target braking state corresponding to the distance includes:
when the initial braking state is the non-braking state, detecting whether the distance is smaller than a third preset distance threshold value;
and if the distance is smaller than a third preset distance threshold value, determining that the initial braking state is not matched with the target braking state corresponding to the distance.
Preferably, after the step of detecting whether the distance is smaller than a third preset distance threshold when the initial braking state is the non-braking state, the method further includes:
if the distance is greater than or equal to a third preset distance threshold value, acquiring the speed of the vehicle when the vehicle runs currently;
if the vehicle speed is greater than a preset speed threshold value, detecting whether the current gear of the vehicle is an N gear;
and if the current gear of the vehicle is the N gear, prompting a driver to execute gear shifting operation.
Preferably, the step of prompting the driver to adjust the initial braking state to the target braking state includes:
displaying prompt information for adjusting the initial braking state to the target braking state on an instrument display of the vehicle; alternatively, the first and second electrodes may be,
and broadcasting voice prompt information for adjusting the initial braking state to the target braking state.
The embodiment of the invention provides a vehicle braking prompting device, which comprises:
the vehicle braking control device comprises a first acquisition module, a second acquisition module and a braking control module, wherein the first acquisition module is used for acquiring the distance between an obstacle located in front of a driving direction of a vehicle and the current initial braking state of the vehicle when the vehicle drives;
the first detection module is used for detecting whether the initial braking state is matched with the target braking state corresponding to the distance;
and the first prompting module is used for prompting a driver to adjust the initial braking state to the target braking state if the initial braking state is not matched with the target braking state.
Preferably, the first obtaining module includes:
the obtaining submodule is used for obtaining the current braking displacement of a brake pedal of the vehicle;
and the first processing submodule is used for determining the current initial braking state of the vehicle according to the braking displacement.
Preferably, the first processing sub-module includes:
the first processing unit is used for determining that the initial braking state is a re-treading braking state with braking force larger than a first preset threshold if the braking displacement is larger than a preset displacement threshold;
the first detection module includes:
the first detection submodule is used for detecting whether the distance is greater than a first preset distance threshold value or not when the initial braking state is the re-stepping braking state;
and the second processing submodule is used for determining that the initial braking state is not matched with the target braking state corresponding to the distance if the distance is greater than a first preset distance threshold.
Preferably, the first processing sub-module includes:
the second processing unit is used for determining that the initial braking state is a light-stepping braking state with the braking force smaller than a second preset threshold if the braking displacement is smaller than or equal to a preset displacement threshold and a braking signal is obtained;
the first detection module includes:
the second detection submodule is used for detecting whether the distance is smaller than a second preset distance threshold value or not when the initial braking state is the light-stepping braking state;
and the third processing submodule is used for determining that the initial braking state is not matched with the target braking state corresponding to the distance if the distance is smaller than a second preset distance threshold.
Preferably, the first processing sub-module includes:
the third processing unit is used for determining that the initial braking state is an unbraked state with zero braking force if the braking displacement is smaller than or equal to a preset displacement threshold value and a braking signal is not obtained;
the first detection module includes:
the third detection submodule is used for detecting whether the distance is smaller than a third preset distance threshold value when the initial braking state is the non-braking state;
and the fourth processing submodule is used for determining that the initial braking state is not matched with the target braking state corresponding to the distance if the distance is smaller than a third preset distance threshold.
Preferably, the apparatus further comprises:
the second obtaining module is used for obtaining the speed of the vehicle when the vehicle runs currently if the distance is larger than or equal to a third preset distance threshold;
the second detection module is used for detecting whether the current gear of the vehicle is an N gear or not if the vehicle speed is greater than a preset speed threshold;
and the second prompting module is used for prompting the driver to execute gear shifting operation if the current gear of the vehicle is the N gear.
Preferably, the first prompting module comprises:
the first prompting submodule is used for displaying prompting information for adjusting the initial braking state to the target braking state on an instrument display of the vehicle; alternatively, the first and second electrodes may be,
and the second prompting submodule is used for broadcasting voice prompting information for adjusting the initial braking state to the target braking state.
An embodiment of the present invention provides a vehicle, which includes a processor, a memory, and a computer program stored in the memory and operable on the processor, and when the processor executes the computer program, the steps of the method for prompting vehicle braking as described above are implemented.
An embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements the steps of the method for prompting vehicle braking as described above.
The embodiment of the invention has the beneficial effects that:
in the scheme, when a vehicle runs, the distance between an obstacle in front of the running direction of the vehicle and the current initial braking state of the vehicle are acquired; and when detecting that the initial braking state is not matched with the target braking state corresponding to the distance, prompting a driver to adjust the initial braking state to the target braking state so as to avoid damage to a braking system when the initial braking state is not matched with the target braking state corresponding to the distance, thereby being beneficial to prolonging the service life of the braking system and being beneficial to the driving safety.
Drawings
FIG. 1 shows one of the flow charts of a method for prompting vehicle braking according to an embodiment of the present invention;
FIG. 2 is a block diagram showing the construction of a vehicle according to an embodiment of the invention;
FIG. 3 is a second flowchart of a method for indicating vehicle braking according to an embodiment of the present invention;
FIG. 4 is a third flowchart of a method for indicating vehicle braking in accordance with an embodiment of the present invention;
FIG. 5 is a fourth flowchart of a method for prompting braking of a vehicle according to an embodiment of the present invention;
fig. 6 is a schematic view of a vehicle braking notification device according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Referring to fig. 1, an embodiment of the present invention provides a method for prompting vehicle braking, which is applied to a vehicle, as shown in fig. 2, and the vehicle includes: the device comprises an instrument controller 1, a vehicle control unit 2, a driving motor controller 3, a model prediction controller 4, an instrument display 5, a gear device 6, a brake pedal 7 and a camera 8. Wherein, the instrument display 5 is connected with the instrument controller 1 through a hard wire; the gear device 6 is connected with the vehicle control unit 2 through a hard wire; the brake pedal 7 is connected with the driving motor controller 3 through a hard wire; the camera 8 is connected with the model prediction controller 4 through a hard wire; the meter Controller 1, the vehicle control unit 2, the drive motor Controller 3, and the model predictive Controller 4 are connected via a Controller Area Network (CAN).
Specifically, the method for prompting vehicle braking comprises the following steps:
and step 11, acquiring the distance between an obstacle in front of the vehicle in the driving direction and the vehicle and the current initial braking state of the vehicle when the vehicle is driven.
In this embodiment, when the vehicle is running, the distance between the obstacle located in front of the running direction of the vehicle and the vehicle, which is acquired by the camera 8, is acquired by the model predictive controller 4, such as: the obstacle is a target vehicle that belongs to the same lane as the vehicle and is located ahead of the vehicle in the traveling direction.
The step of obtaining the current initial braking state of the vehicle comprises the following steps: acquiring the current braking displacement of a brake pedal of the vehicle; and determining the current initial braking state of the vehicle according to the braking displacement.
Specifically, the braking displacement amount of the brake pedal 7 is acquired by the drive motor controller 3. If the braking displacement is larger than a preset displacement threshold value, determining that the initial braking state is a re-stepping braking state with the braking force larger than a first preset threshold value; if the braking displacement is smaller than or equal to a preset displacement threshold value and the driving motor controller 3 obtains a braking signal, determining that the initial braking state is a light-stepping braking state with the braking force smaller than a second preset threshold; and if the braking displacement is smaller than or equal to a preset displacement threshold value and the driving motor controller 3 does not acquire a braking signal, determining that the initial braking state is an unbraked state with zero braking force.
And 12, detecting whether the initial braking state is matched with the target braking state corresponding to the distance.
Specifically, in a heavy-pedal braking state, if it is detected that a distance between an obstacle in front of a vehicle in a driving direction and the vehicle is greater than a first preset distance threshold, it is determined that the initial braking state is not matched with a target braking state corresponding to the distance.
In a light-on braking state, if it is detected that a distance between an obstacle in front of a vehicle in a driving direction and the vehicle is smaller than a second preset distance threshold, it is determined that the initial braking state is not matched with a target braking state corresponding to the distance.
Under the non-braking state, if it is detected that the distance between an obstacle in front of the vehicle running direction and the vehicle is smaller than a second preset distance threshold value, it is determined that the initial braking state is not matched with a target braking state corresponding to the distance.
And step 13, if the initial braking state is not matched with the target braking state, prompting the driver to adjust the initial braking state to the target braking state.
Specifically, as an implementation manner, when it is detected that the initial braking state is not matched with the target braking state corresponding to the distance, a prompt message for adjusting the initial braking state to the target braking state is displayed through an instrument display 5 of the vehicle; or further, when a prompt message is displayed on the meter display 5, a prompt is given by an alarm prompt tone.
As another implementation manner, when it is detected that the initial braking state is not matched with the target braking state corresponding to the distance, voice prompt information for adjusting the initial braking state to the target braking state is broadcasted.
In this embodiment, when it is detected that the initial braking state is not matched with the target braking state corresponding to the distance, the driver is prompted to adjust the braking state, so that the service life of the braking system is prolonged, the braking system is prevented from being damaged, and the driving safety is improved.
Referring to fig. 3, an embodiment of the present invention further provides a method for prompting vehicle braking, including:
and step 31, acquiring the distance between an obstacle in front of the vehicle in the traveling direction and the vehicle, and acquiring the current braking displacement of a brake pedal of the vehicle when the vehicle travels.
In this embodiment, while the vehicle is running, the distance between the obstacle located ahead in the running direction of the vehicle and the vehicle, which is acquired by the camera 8, is acquired by the model predictive controller 4, and the brake displacement amount of the brake pedal is acquired by the drive motor controller 3. The obstacle is a target vehicle which belongs to the same lane as the vehicle and is located in front of the driving direction of the vehicle.
And step 32, if the brake displacement is greater than the preset displacement threshold, determining that the initial brake state is a re-treading brake state with the brake force greater than a first preset threshold.
Preferably, the preset displacement threshold may be set to 30 cm. And if the brake displacement is detected to be greater than 30cm, namely the displacement of the brake pedal 7 which is stepped on when in the braking state is detected to be greater than 30cm, determining that the initial braking state is a re-stepping braking state with the braking force greater than a first preset threshold.
And step 33, detecting whether the distance is greater than a first preset distance threshold value when the initial braking state is a heavy-pedal braking state.
In this embodiment, the first preset distance threshold value represents a preset vehicle distance (a distance between a target vehicle that belongs to the same lane as the vehicle and is located ahead of the traveling direction of the vehicle and the vehicle) corresponding to the heavy-duty brake state.
And step 34, if the distance is greater than the first preset distance threshold, determining that the initial braking state is not matched with the target braking state corresponding to the distance.
In this embodiment, if the distance between the target vehicle and the vehicle is greater than the first preset distance threshold, the current braking distance (vehicle distance) is sufficient, and it is determined that the initial braking state does not match the target braking state corresponding to the distance without re-applying the brake.
And step 35, if the initial braking state is not matched with the target braking state, prompting the driver to adjust the initial braking state to the target braking state.
In this embodiment, when it is detected that the initial braking state does not match the target braking state corresponding to the distance, a prompt message for adjusting the initial braking state to the target braking state is displayed on the instrument display 5 of the vehicle, such as: the prompting information is 'do not need to step on the brake again', and further prompting is carried out through an alarm prompting sound; or directly report the voice prompt message of ' do not need to heavily step on the braking ' to the suggestion driver carries out the adjustment of braking state, is favorable to improving braking system's life-span, avoids braking system to damage, and is favorable to the security of driving.
In addition, when the distance is smaller than or equal to the first preset distance threshold value and the initial braking state is determined to be matched with the target braking state corresponding to the distance, a prompt message of 'please keep current braking' is displayed on the instrument display 5, so that traffic accidents caused by the fact that a driver possibly reduces braking force are avoided, and the driving safety is further guaranteed.
Referring to fig. 4, an embodiment of the present invention further provides a method for prompting vehicle braking, including:
and step 41, acquiring the distance between an obstacle in front of the vehicle in the traveling direction and the vehicle and acquiring the current braking displacement of a brake pedal of the vehicle when the vehicle travels.
In this embodiment, while the vehicle is running, the distance between the obstacle located ahead in the running direction of the vehicle and the vehicle, which is acquired by the camera 8, is acquired by the model predictive controller 4, and the brake displacement amount of the brake pedal is acquired by the drive motor controller 3. The obstacle is a target vehicle which belongs to the same lane as the vehicle and is located in front of the driving direction of the vehicle.
And 42, if the brake displacement is smaller than or equal to the preset displacement threshold and the brake signal is obtained, determining that the initial brake state is a light-pedal brake state with the brake force smaller than a second preset threshold.
Preferably, the preset displacement threshold may be set to 30 cm. If the braking displacement is detected to be less than or equal to 30cm, that is, the displacement of the brake pedal 7 being stepped on when in the braking state is detected to be less than or equal to 30cm, and the braking signal is acquired through the driving motor controller 3, it is determined that the initial braking state is a light-stepping braking state in which the braking force is less than a second preset threshold.
And 43, detecting whether the distance is smaller than a second preset distance threshold value when the initial braking state is a light-stepping braking state.
In this embodiment, the second preset distance threshold value represents a preset vehicle distance (a distance between a target vehicle that belongs to the same lane as the vehicle and is located ahead of the traveling direction of the vehicle and the vehicle) corresponding to the light-braking state.
And step 44, if the distance is smaller than a second preset distance threshold, determining that the initial braking state is not matched with the target braking state corresponding to the distance.
In this embodiment, if the distance between the target vehicle and the vehicle is smaller than a second preset distance threshold, which indicates that the current braking distance (vehicle distance) is insufficient, and the brake needs to be applied again, it is determined that the initial braking state does not match the target braking state corresponding to the distance.
And step 45, if the initial braking state is not matched with the target braking state, prompting the driver to adjust the initial braking state to the target braking state.
In this embodiment, when it is detected that the initial braking state does not match the target braking state corresponding to the distance, a prompt message for adjusting the initial braking state to the target braking state is displayed on the instrument display 5 of the vehicle, such as: the prompt message is 'please re-step the brake', and further prompts through an alarm prompt tone; or voice prompt information of 'please re-step the brake' is directly broadcasted to prompt a driver to adjust the braking state, so that traffic accidents are avoided, and the driving safety is further facilitated.
In addition, when the distance is greater than or equal to the second preset distance threshold value and the initial braking state is determined to be matched with the target braking state corresponding to the distance, a prompt message of 'please keep current braking' is displayed on the instrument display 5, so that the situation that a driver possibly damages a braking system due to the increase of braking force is avoided, and the service life of the braking system is further prolonged.
Referring to fig. 5, an embodiment of the present invention further provides a method for prompting vehicle braking, including:
in step 51, when the vehicle is running, the distance between the obstacle located in front of the running direction of the vehicle and the vehicle is acquired, and the current braking displacement of the brake pedal of the vehicle is acquired.
In this embodiment, while the vehicle is running, the distance between the obstacle located ahead in the running direction of the vehicle and the vehicle, which is acquired by the camera 8, is acquired by the model predictive controller 4, and the brake displacement amount of the brake pedal is acquired by the drive motor controller 3. The obstacle is a target vehicle which belongs to the same lane as the vehicle and is located in front of the driving direction of the vehicle.
And step 52, if the braking displacement is smaller than or equal to the preset displacement threshold and the braking signal is not obtained, determining that the initial braking state is an unbraked state with zero braking force.
Preferably, the preset displacement threshold may be set to 30 cm. If the braking displacement is detected to be less than or equal to 30cm, that is, the displacement of the brake pedal 7 being stepped on when in the braking state is detected to be less than or equal to 30cm, and no braking signal is acquired through the driving motor controller 3, it is determined that the initial braking state is an unbraking state in which the braking force is zero.
In the embodiment, whether the brake is in the non-braking state is determined by detecting the brake signal so as to avoid that when the brake displacement is small, the brake force is small or zero, and the brake is mistakenly considered to be in the non-braking state.
And step 53, detecting whether the distance is smaller than a third preset distance threshold value when the initial braking state is the non-braking state.
In this embodiment, the third preset distance threshold value represents a preset vehicle distance (a distance between a target vehicle that belongs to the same lane as the vehicle and is located ahead of the traveling direction of the vehicle and the vehicle) corresponding to the non-braking state.
And step 54, if the distance is smaller than a third preset distance threshold, determining that the initial braking state is not matched with the target braking state corresponding to the distance.
In this embodiment, if the distance between the target vehicle and the vehicle, which belong to the same lane as the vehicle and are located before the driving direction of the vehicle, is smaller than a third preset distance threshold, it indicates that the current braking distance (vehicle distance) is insufficient, and braking is required, that is, it is determined that the initial braking state does not match the target braking state corresponding to the distance.
And step 55, if the initial braking state is not matched with the target braking state, prompting the driver to adjust the initial braking state to the target braking state.
In this embodiment, when it is detected that the initial braking state does not match the target braking state corresponding to the distance, a prompt message for adjusting the initial braking state to the target braking state is displayed on the instrument display 5 of the vehicle, such as: the prompt message is 'please brake', and further prompts through an alarm prompt tone; or voice prompt information of 'please brake' is directly broadcasted to prompt a driver to adjust the braking state, so that traffic accidents are avoided, and the driving safety is facilitated.
In addition, if the distance is greater than or equal to a third preset distance threshold, acquiring the speed of the vehicle when the vehicle runs currently; if the vehicle speed is greater than a preset speed threshold value, detecting whether the current gear of the vehicle is an N gear; and if the current gear of the vehicle is the N gear, prompting a driver to execute gear shifting operation.
Preferably, the preset speed threshold may be set to 8 km/h. And if the vehicle speed is less than or equal to 8km/h, determining that the current vehicle creeps at a low speed, and executing the step 51 if the requirement on driving safety is met. If the current vehicle speed is greater than 8km/h, determining that the current vehicle speed is higher; judging whether the current gear is N gear or not according to the current gear of the vehicle controller 2 or the gear device 6; and if the current gear is the N gear, determining that the vehicle is in a neutral sliding state at present, and prompting the driver to execute gear shifting operation. Such as: a message to "do not slide in neutral" is displayed on the meter display 5. If the current gear is not the N gear (D, S or R gear), it is determined that the current gear is in the safe driving state, and step 51 is executed.
Referring to fig. 6, an embodiment of the present invention further provides a vehicle braking notification device, including:
the first obtaining module 610 is configured to obtain, when a vehicle is running, a distance between an obstacle located in front of a running direction of the vehicle and the vehicle, and an initial braking state of the vehicle at present.
A first detecting module 620, configured to detect whether the initial braking state matches the target braking state corresponding to the distance.
A first prompting module 630, configured to prompt a driver to adjust the initial braking state to the target braking state if the initial braking state does not match the target braking state.
Wherein the first obtaining module 610 includes:
and the obtaining submodule is used for obtaining the current braking displacement of a brake pedal of the vehicle.
And the first processing submodule is used for determining the current initial braking state of the vehicle according to the braking displacement.
Wherein the first processing sub-module comprises:
and the first processing unit is used for determining that the initial braking state is a re-treading braking state with the braking force larger than a first preset threshold if the braking displacement is larger than a preset displacement threshold.
The first detection module 620 includes:
and the first detection submodule is used for detecting whether the distance is greater than a first preset distance threshold value or not when the initial braking state is the re-stepping braking state.
And the second processing submodule is used for determining that the initial braking state is not matched with the target braking state corresponding to the distance if the distance is greater than a first preset distance threshold.
Wherein the first processing sub-module comprises:
and the second processing unit is used for determining that the initial braking state is a light-stepping braking state with the braking force smaller than a second preset threshold if the braking displacement is smaller than or equal to a preset displacement threshold and the braking signal is obtained.
The first detection module 620 includes:
and the second detection submodule is used for detecting whether the distance is smaller than a second preset distance threshold value or not when the initial braking state is the light-stepping braking state.
And the third processing submodule is used for determining that the initial braking state is not matched with the target braking state corresponding to the distance if the distance is smaller than a second preset distance threshold.
Wherein the first processing sub-module comprises:
and the third processing unit is used for determining that the initial braking state is an unbraked state with zero braking force if the braking displacement is smaller than or equal to a preset displacement threshold value and a braking signal is not obtained.
The first detection module 620 includes:
and the third detection submodule is used for detecting whether the distance is smaller than a third preset distance threshold value when the initial braking state is the non-braking state.
And the fourth processing submodule is used for determining that the initial braking state is not matched with the target braking state corresponding to the distance if the distance is smaller than a third preset distance threshold.
Wherein the apparatus further comprises:
and the second acquisition module is used for acquiring the speed of the vehicle when the vehicle runs currently if the distance is greater than or equal to a third preset distance threshold.
And the second detection module is used for detecting whether the current gear of the vehicle is an N gear or not if the vehicle speed is greater than a preset speed threshold.
And the second prompting module is used for prompting the driver to execute gear shifting operation if the current gear of the vehicle is the N gear.
Wherein the first prompting module 630 includes:
and the first prompting submodule is used for displaying prompting information for adjusting the initial braking state to the target braking state on an instrument display of the vehicle.
And the second prompting submodule is used for broadcasting voice prompting information for adjusting the initial braking state to the target braking state.
In the scheme, when a vehicle runs, the distance between an obstacle in front of the running direction of the vehicle and the current initial braking state of the vehicle are acquired; and when detecting that the initial braking state is not matched with the target braking state corresponding to the distance, prompting a driver to adjust the initial braking state to the target braking state so as to avoid damage to a braking system when the initial braking state is not matched with the target braking state corresponding to the distance, thereby being beneficial to prolonging the service life of the braking system and being beneficial to the driving safety.
In order to better achieve the beneficial effects, the embodiment of the present invention further provides a vehicle, where the vehicle includes a processor, a memory, and a computer program stored in the memory and operable on the processor, and the processor implements the steps of the method for prompting vehicle braking as described above when executing the computer program. Embodiments of the present invention further provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the method for prompting vehicle braking as described above.
While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.
Claims (12)
1. A method for prompting braking of a vehicle, comprising:
when a vehicle runs, acquiring the distance between an obstacle located in front of the running direction of the vehicle and the current initial braking state of the vehicle;
detecting whether the initial braking state is matched with a target braking state corresponding to the distance;
if the initial braking state is not matched with the target braking state, prompting a driver to adjust the initial braking state to the target braking state;
the step of obtaining the current initial braking state of the vehicle comprises the following steps:
acquiring the current braking displacement of a brake pedal of the vehicle;
determining the current initial braking state of the vehicle according to the braking displacement;
the step of determining the current initial braking state of the vehicle according to the braking displacement comprises the following steps:
if the braking displacement is larger than a preset displacement threshold value, determining that the initial braking state is a re-stepping braking state with the braking force larger than a first preset threshold value;
the step of detecting whether the initial braking state is matched with the target braking state corresponding to the distance includes:
when the initial braking state is the heavy-pedal braking state, detecting whether the distance is greater than a first preset distance threshold value;
and if the distance is greater than the first preset distance threshold, determining that the initial braking state is not matched with the target braking state corresponding to the distance.
2. The method for prompting vehicle braking according to claim 1, wherein the step of determining the current initial braking state of the vehicle according to the braking displacement amount comprises:
if the brake displacement is smaller than or equal to a preset displacement threshold value and a brake signal is obtained, determining that the initial brake state is a light-stepping brake state with the brake force smaller than a second preset threshold value;
the step of detecting whether the initial braking state is matched with the target braking state corresponding to the distance includes:
when the initial braking state is the light-stepping braking state, detecting whether the distance is smaller than a second preset distance threshold value;
and if the distance is smaller than a second preset distance threshold value, determining that the initial braking state is not matched with the target braking state corresponding to the distance.
3. The method for prompting vehicle braking according to claim 1, wherein the step of determining the current initial braking state of the vehicle according to the braking displacement amount comprises:
if the braking displacement is smaller than or equal to a preset displacement threshold value and a braking signal is not obtained, determining that the initial braking state is an unbraked state with zero braking force;
the step of detecting whether the initial braking state is matched with the target braking state corresponding to the distance includes:
when the initial braking state is the non-braking state, detecting whether the distance is smaller than a third preset distance threshold value;
and if the distance is smaller than a third preset distance threshold value, determining that the initial braking state is not matched with the target braking state corresponding to the distance.
4. A method of providing a prompt for vehicle braking as claimed in claim 3 wherein, following the step of detecting whether the distance is less than a third predetermined distance threshold when the initial braking state is the unbraked state, the method further comprises:
if the distance is greater than or equal to a third preset distance threshold value, acquiring the speed of the vehicle when the vehicle runs currently;
if the vehicle speed is greater than a preset speed threshold value, detecting whether the current gear of the vehicle is an N gear;
and if the current gear of the vehicle is the N gear, prompting a driver to execute gear shifting operation.
5. The method for prompting braking of a vehicle according to claim 1, wherein the step of prompting a driver to adjust the initial braking state to the target braking state comprises:
displaying prompt information for adjusting the initial braking state to the target braking state on an instrument display of the vehicle; alternatively, the first and second electrodes may be,
and broadcasting voice prompt information for adjusting the initial braking state to the target braking state.
6. A vehicle braking notification device, comprising:
the vehicle braking control device comprises a first acquisition module, a second acquisition module and a braking control module, wherein the first acquisition module is used for acquiring the distance between an obstacle located in front of a driving direction of a vehicle and the current initial braking state of the vehicle when the vehicle drives;
the first detection module is used for detecting whether the initial braking state is matched with the target braking state corresponding to the distance;
the first prompting module is used for prompting a driver to adjust the initial braking state to the target braking state if the initial braking state is not matched with the target braking state;
the first obtaining module comprises:
the obtaining submodule is used for obtaining the current braking displacement of a brake pedal of the vehicle;
the first processing submodule is used for determining the current initial braking state of the vehicle according to the braking displacement;
the first processing sub-module comprises:
the first processing unit is used for determining that the initial braking state is a re-treading braking state with braking force larger than a first preset threshold if the braking displacement is larger than a preset displacement threshold;
the first detection module includes:
the first detection submodule is used for detecting whether the distance is greater than a first preset distance threshold value or not when the initial braking state is the re-stepping braking state;
and the second processing submodule is used for determining that the initial braking state is not matched with the target braking state corresponding to the distance if the distance is greater than a first preset distance threshold.
7. The vehicle braking notification device according to claim 6, wherein the first processing submodule includes:
the second processing unit is used for determining that the initial braking state is a light-stepping braking state with the braking force smaller than a second preset threshold if the braking displacement is smaller than or equal to a preset displacement threshold and a braking signal is obtained;
the first detection module includes:
the second detection submodule is used for detecting whether the distance is smaller than a second preset distance threshold value or not when the initial braking state is the light-stepping braking state;
and the third processing submodule is used for determining that the initial braking state is not matched with the target braking state corresponding to the distance if the distance is smaller than a second preset distance threshold.
8. The vehicle braking notification device according to claim 6, wherein the first processing submodule includes:
the third processing unit is used for determining that the initial braking state is an unbraked state with zero braking force if the braking displacement is smaller than or equal to a preset displacement threshold value and a braking signal is not obtained;
the first detection module includes:
the third detection submodule is used for detecting whether the distance is smaller than a third preset distance threshold value when the initial braking state is the non-braking state;
and the fourth processing submodule is used for determining that the initial braking state is not matched with the target braking state corresponding to the distance if the distance is smaller than a third preset distance threshold.
9. The vehicle braking notification device according to claim 8, further comprising:
the second obtaining module is used for obtaining the speed of the vehicle when the vehicle runs currently if the distance is larger than or equal to a third preset distance threshold;
the second detection module is used for detecting whether the current gear of the vehicle is an N gear or not if the vehicle speed is greater than a preset speed threshold;
and the second prompting module is used for prompting the driver to execute gear shifting operation if the current gear of the vehicle is the N gear.
10. The vehicle braking notification device according to claim 6, wherein the first notification module includes:
the first prompting submodule is used for displaying prompting information for adjusting the initial braking state to the target braking state on an instrument display of the vehicle; alternatively, the first and second electrodes may be,
and the second prompting submodule is used for broadcasting voice prompting information for adjusting the initial braking state to the target braking state.
11. A vehicle, characterized in that it comprises a processor, a memory, a computer program stored on said memory and executable on said processor, said processor implementing the steps of the method for prompting braking of the vehicle according to any one of claims 1 to 5 when said computer program is executed.
12. A computer-readable storage medium, characterized in that a computer program is stored thereon, which computer program, when being executed by a processor, carries out the steps of the method of prompting vehicle braking according to any one of claims 1 to 5.
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| CN201711035052.2A CN107891857B (en) | 2017-10-30 | 2017-10-30 | Vehicle braking prompting method and device and vehicle |
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| JP7251513B2 (en) * | 2020-04-08 | 2023-04-04 | トヨタ自動車株式会社 | Automatic valet parking system and service provision method |
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| CN102815291A (en) * | 2012-07-26 | 2012-12-12 | 重庆长安汽车股份有限公司 | Device and method for checking brake system |
| EP3146506A2 (en) * | 2014-05-22 | 2017-03-29 | Mobileye Vision Technologies Ltd. | Systems and methods for braking a vehicle based on a detected object |
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