CN114248736A - Parking control method and parking control device based on EPB - Google Patents

Parking control method and parking control device based on EPB Download PDF

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Publication number
CN114248736A
CN114248736A CN202011023104.6A CN202011023104A CN114248736A CN 114248736 A CN114248736 A CN 114248736A CN 202011023104 A CN202011023104 A CN 202011023104A CN 114248736 A CN114248736 A CN 114248736A
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China
Prior art keywords
epb
state
gear
current
signal
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CN202011023104.6A
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Chinese (zh)
Inventor
王银磊
潘巍
郭伟腾
刘秀
刘洋
李玉山
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Great Wall Motor Co Ltd
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Great Wall Motor Co Ltd
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Priority to CN202011023104.6A priority Critical patent/CN114248736A/en
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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
    • B60T7/00—Brake-action initiating means
    • B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
    • 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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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Transmission Device (AREA)

Abstract

The application discloses a parking control method based on EPB, comprising the following steps: detecting the current state of the EPB; detecting an operation signal of a user; and when the current state of the EPB is detected to be a clamping state and the operation signal comprises a braking signal and a signal for switching to an R/N/D gear, the EPB is controlled to be switched from the clamping state to a releasing state. According to the parking control method based on the EPB, the gear state of the whole vehicle can be controlled under the condition of switching based on the EPB state, a brand-new P gear parking mode is realized, the diversity of the P gear parking function is enriched, and the use experience of a user is improved.

Description

Parking control method and parking control device based on EPB
Technical Field
The present disclosure relates to the field of vehicle manufacturing technologies, and in particular, to an EPB-based parking control method and a parking control device suitable for the method.
Background
In the related art, for new energy vehicles, a gear shift operation is used as an important driving intention input source, and a great deal of thought is injected into the gear shift intention by each large host factory. And the driving experience of a user is directly influenced by the quality of a gear shifting strategy, and the gear shifting strategy is a direct experience of the user in driving a vehicle, wherein the prior art is mostly based on a processing mode of an E-park locking mechanism, and is based on mechanical caliper locking, the control mode is single, the practicability is poor, the user experience is general, and an improved space exists.
Disclosure of Invention
The present application is directed to solving at least one of the problems in the prior art. Therefore, an object of the present application is to provide an EPB-based parking control method, which can implement EPB-based parking control, enrich the types of parking control methods, facilitate diverse selection of parking control methods, and improve user experience.
According to the EPB-based parking control method of the embodiment of the application, the parking control method comprises the following steps: detecting the current state of the EPB; detecting an operation signal of a user; and when the current state of the EPB is detected to be a clamping state and the operation signal comprises a braking signal and a signal for switching to an R/N/D gear, the EPB is controlled to be switched from the clamping state to a releasing state.
According to the EPB-based parking control method, the gear state of the whole vehicle can be controlled under the condition of switching based on the EPB state, a brand-new P-gear parking mode is realized, the diversity of the P-gear parking function is enriched, and the use experience of a user is improved.
The EPB-based parking control method according to some embodiments of the present application, further comprising: after the EPB is controlled to be switched from the clamping state to the releasing state, judging that the switched gear is the R/N/D gear according to the brake signal and the switched R/N/D gear signal; and controlling instrument equipment to display the R/N/D gear.
The EPB-based parking control method according to some embodiments of the present application, further comprising: and when the switching to the R/N/D gear signal is detected and the braking signal is not detected, the control instrument equipment prompts a user to execute braking operation.
The present application also proposes an EPB-based parking control apparatus, which is adapted to the parking control method according to any one of the above embodiments, and includes: a first detection unit for detecting the current state of the EPB; a second detection unit for detecting an operation signal of a user; and the first control unit is used for controlling the EPB to be switched from the clamping state to the releasing state when the current state of the EPB is detected to be the clamping state and the operation signal comprises a braking signal and a R/N/D gear switching signal which are sequentially detected.
The application also proposes another EPB-based parking control method.
According to still other embodiments of the present application, an EPB-based parking control method includes: detecting the current state of the EPB; detecting a speed signal of a vehicle and detecting an operation signal of a user; and controlling the EPB to be switched from the release state to the clamping state when the current state of the EPB is detected to be the release state, the speed of the vehicle is less than a set value and the operation signal is the entering P-gear signal.
According to other embodiments of the EPB-based parking control method according to the present application, the entering P-range signal includes any one of pressing a P-button, controlling the entire vehicle to be powered off, opening a driving side door, and unfastening a seat belt or inserting a charging gun.
According to other embodiments of the present application, an EPB-based parking control method further includes: in the process of switching the EPB from the release state to the clamping state, judging that the current gear is P gear according to the P gear entering signal, and controlling a parking indicator lamp on instrument equipment to flash P gear; and after the EPB is completely switched to the clamping state, controlling the parking indicating lamp to stop the P-gear flickering.
According to other embodiments of the present application, an EPB-based parking control method further includes: and controlling the vehicle to directly enter the P gear when the current state of the EPB is detected to be a release state, the speed of the vehicle is less than a set value and the operation signal is a signal for entering the P gear.
The present application also proposes another EPB-based parking control device, which is adapted to the parking control method according to any one of the above embodiments, and includes: a first detection unit for detecting the current state of the EPB; a second detection unit for detecting a speed signal of the vehicle and detecting an operation signal of a user; a first control unit for controlling the EPB to switch from the release state to the clamping state when the current state of the EPB is detected to be the release state, the speed of the vehicle is less than a set value and the operation signal is a signal for entering a P gear.
The application also provides another parking control method based on the EPB.
According to still further embodiments of the present application, an EPB-based parking control method includes: detecting the current gear state and the current state of the EPB; detecting a speed signal of the vehicle and detecting an action signal of the EPB switch; and controlling the current gear state and the current state of the EPB according to the current gear state, the current state of the EPB, the speed signal and the action signal of the EPB switch.
According to the EPB-based parking control method of further embodiments of the present application, the controlling the current gear state and the current state of the EPB according to the current gear state, the current state of the EPB, the speed signal, and the actuation signal of the EPB switch includes: and when the current gear state is detected to be an R/N/D gear, the current state of the EPB is a release state, the speed of the vehicle is less than a set value, and an action signal of the EPB switch is EPB switch pull-up, controlling the EPB to be switched from the release state to a clamping state and controlling the current gear state to be kept unchanged.
According to the EPB-based parking control method of further embodiments of the present application, the controlling the current gear state and the current state of the EPB according to the current gear state, the current state of the EPB, the speed signal, and the actuation signal of the EPB switch includes: and when the current gear state is detected to be an R/N/D gear, the current state of the EPB is a release state, the speed of the vehicle is less than a set value, and an action signal of the EPB switch is that the EPB switch is pulled and is off and electrified, controlling the EPB to keep the release state and controlling the current gear state to be switched from the R/N/D gear to the N gear.
The EPB-based parking control method according to still other embodiments of the present application, further comprising: after the EPB is controlled to keep a release state and the current gear state is controlled to be switched from the R/N/D gear to the N gear, if the EPB switch is detected to be pulled, the EPB is controlled to be switched from the release state to the clamping state and the gear is controlled to be switched to the P gear; and if the braking signal is detected and the signal is switched to the R/N/D gear, determining to enter the R/N/D gear.
The present application also proposes another EPB-based parking control device, which is adapted to the parking control method according to any one of the above embodiments, and includes: a first detection unit for detecting the current state of the EPB; a second detection unit for detecting an operation signal of a user; and the first control unit is used for controlling the current gear state and the current state of the EPB according to the current gear state, the current state of the EPB, the speed signal and the action signal of the EPB switch.
Compared with the prior art, the parking control device and the parking control method have the same advantages, and the detailed description is omitted.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic flow diagram of an EPB-based parking control method according to an embodiment of the present application;
FIG. 2 is a schematic flow diagram of an EPB-based parking control method according to further embodiments of the present application;
FIG. 3 is a schematic flow diagram of an EPB-based parking control method according to further embodiments of the present application.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
The following describes a parking control method based on an EPB (Electrical Park Brake) according to an embodiment of the present application with reference to fig. 1 to 3, where the parking control method is capable of implementing EPB-based parking control, and a specific control manner of the parking control method is different from a processing manner based on an E-Park locking mechanism in the prior art, so as to provide a new parking control manner for a user, enrich the diversity of parking control, and improve the user experience.
As shown in fig. 1, according to an EPB-based parking control method according to some embodiments of the present application, which facilitates an operation of releasing a P range, the parking control method includes:
s10: the current state of the EPB is detected.
The current state of the EPB comprises a clamping state and a releasing state, wherein the vehicle is enabled to enter a P-gear parking state in the clamping state, and the vehicle is enabled to be switched from the P-gear parking state to other states in the releasing state. It should be noted that the EPB is an electronic parking system, and the electronic parking system may be connected to a vehicle controller, so as to control the electronic parking system through the vehicle controller to implement automatic parking entry or automatic unlocking parking, and of course, manually switch the state of the EPB through an EPB switch.
S20: an operation signal of a user is detected.
According to the method and the device, after the current state of the EPB is determined, the gear shifting intention of a user can be identified according to the operation signal of the user, so that corresponding control operation is performed according to the gear shifting intention of the user, and the current gear can be switched to the target gear.
The shift intention of realizing P-gear parking at a user comprises P-gear release, P-gear entering and independent operation of an EPB: the P gear is switched from a non-parking gear state to a P gear parking state, so that the vehicle enters the parking state; the P gear is released, namely the vehicle is switched from a P gear parking state to a non-parking state, so that the vehicle is released from parking; when the EPB is operated alone, the state of the EPB is switched, such as pulled up by an EPB switch.
S30: and when the current state of the EPB is detected to be a clamping state and the operation signals comprise braking signals which are sequentially detected and a signal for switching to the R/N/D gear, controlling the EPB to switch from the clamping state to a releasing state.
That is, after the current state of the EPB is determined, the operation intention of the user is determined by detecting the execution operation of the user, so that the current state of the EPB is controlled and switched, after the EPB is switched to the target state, the vehicle can smoothly enter the target gear position, the control process of the P-gear parking of the user is realized, and after the execution operation is determined to be completed or the EPB is switched to the target state, the gear position state after the switching can be determined by the vehicle control unit, so that the operation of the P-gear parking is determined to be completed.
That is, at this time, the user's operation intention is to release the P range, and the user performs an operation for switching from the current range to the non-P range state. The current gear state is detected through the vehicle control unit, the current state of the EPB is detected, the current gear state is detected to be the P gear, the current vehicle is determined to be in the P gear parking state, and when the current state of the EPB is in the clamping state, namely, the user can not directly release the P gear after executing gear shifting operation.
At the moment, if the vehicle control unit detects that the user steps on the brake and switches the current gear to the R/N/D gear, the vehicle control unit sends a control command to the EPB, and the EPB switches the state of the EPB after receiving the command of the vehicle control unit, so that the EPB is released from the clamping state to the releasing state, the vehicle can be smoothly switched to the R/N/D gear, and the operation of releasing the P gear is realized. At the moment, after the current state of the EPB is completely switched to the release state, the current gear is judged to be the R/N/D gear according to the execution operation.
The releasing operation of the P-gear parking can be realized through the steps, for example, the vehicle can be switched from the P gear to the R gear, or switched to the N gear, or switched to the D gear.
Therefore, the P-gear parking control method different from the prior art is provided in the application, the gear state of the whole vehicle is controlled under the condition of switching based on the EPB state, a brand-new P-gear parking mode is realized, the diversity of the P-gear parking function is enriched, and the use experience of a user is improved.
In some embodiments, the parking control method further comprises: after the EPB is controlled to be switched from the clamping state to the releasing state, judging that the switched gear is the R/N/D gear according to the brake signal and the R/N/D gear signal; and controlling the instrument equipment to display the R/N/D gear.
That is to say, after the gear state after judging the switching is the R/N/D gear, control instrument unit display R/N/D gear to make the mode of user's accessible visual observation confirm that the vehicle has switched from the P gear to the R/N/D gear, be favorable to making the user more directly perceived, convenient to the detection of vehicle gear state, promote user experience.
In some embodiments, further comprising: when the signal of switching to the R/N/D gear is detected before the brake signal, the control instrument equipment prompts a user to execute the brake operation.
That is, if it is detected that the user does not step on the brake and the current gear is switched to the R/N/D gear, the control instrument unit warns and reminds. That is to say, when the user is performing the operation of releasing the P range and does not perform the braking operation on the vehicle, the user can be informed through the meter unit to remind the user to perform the regular operation, so that potential safety hazards such as landslide of the vehicle are avoided, and the safety of releasing the P range is improved.
The mode that the instrument unit signals to the user can be voice prompt, for example, broadcast "please step on the brake and shift gears", or directly show through the display screen to make the user read the detection prompt message through characters or figures.
The application also provides a parking control device based on the EPB.
According to the parking control apparatus of the embodiment of the present application, the parking control apparatus is applied to the parking control method of any one of the embodiments described above, and includes: the device comprises a first detection unit, a second detection unit and a first control unit.
The EPB control device comprises a first detection unit, a second detection unit, a first control unit and a second control unit, wherein the first detection unit is used for detecting the current state of the EPB, the second detection unit is used for detecting an operation signal of a user, and the first control unit is used for controlling the EPB to be switched from a clamping state to a releasing state when the current state of the EPB is detected to be the clamping state and the operation signal comprises a braking signal and a R/N/D shift signal which are sequentially detected. It should be noted that the parking control apparatus of this embodiment is used in practical applications to execute the parking control method, and the specific operations thereof are the same as those described in the above method, and will not be described again.
The present application also proposes another embodiment EPB-based parking control method that facilitates an operation to enter P range.
As shown in fig. 2, an EPB-based parking control method according to an embodiment of the present application includes:
s10: the current state of the EPB is detected.
The current state of the EPB includes a clamped state, in which the vehicle is facilitated to enter a P-range parking state, and a released state, in which the vehicle is facilitated to be switched from the P-range parking state to another state. It should be noted that the EPB is an electronic parking system, and the electronic parking system may be connected to a vehicle controller, so as to control the electronic parking system through the vehicle controller to implement automatic parking entry or automatic unlocking parking, and of course, manually switch the state of the EPB through an EPB switch.
Therefore, the gear of the vehicle can be switched quickly by detecting the current state of the EPB.
S20: detecting a speed signal of the vehicle and detecting an operation signal of a user.
According to the method and the device, after the current state of the EPB is determined, the gear shifting intention of a user can be identified according to the speed signal of the vehicle and the execution operation of the user, so that corresponding control operation is performed according to the gear shifting intention of the user, and the current gear can be switched to the target gear.
The shift intention of realizing P-gear parking at a user comprises P-gear release, P-gear entering and independent operation of an EPB: the P gear is switched from a non-parking gear state to a P gear parking state, so that the vehicle enters the parking state; the P gear is released, namely the vehicle is switched from a P gear parking state to a non-parking state, so that the vehicle is released from parking; when the EPB is operated alone, the state of the EPB is switched, such as pulled up by an EPB switch.
S30: and switching the EPB from the release state to the clamping state when the current state of the EPB is detected to be the release state, the speed of the vehicle is less than a set value and the operation signal is a signal for entering a P gear. That is, after the current state of the EPB is determined, the current state of the EPB is controlled and switched by determining the operation intention of the user by detecting the traveling speed of the vehicle and the execution operation of the user, so that the vehicle can smoothly enter the target gear after the EPB is switched to the target state, thereby implementing the control process of the P-range parking of the user, and after the execution operation is determined to be completed or the EPB is switched to the target state, the gear state after the switching can be determined by the vehicle control unit, thereby determining that the P-range parking operation is completed.
The P gear entering signal comprises any one of pressing a P key, controlling the whole vehicle to be powered off, opening a driving side door and unfastening a safety belt or inserting a charging gun.
In some embodiments, if the operation intention of the user is to enter the P range, the operation is performed to switch from the current range to the P-range parking state, wherein switching the current state of the EPB to the target EPB state according to the operation performed, and determining the state of the shifted range according to the operation performed or the switched target EPB state includes:
the current gear state is detected through the vehicle control unit, the current state of the EPB is detected, when the current gear state is detected to be the R/N/D gear, the current state of the EPB is detected to be the release state, the vehicle speed is detected to be less than a set value through the vehicle control unit, the current state of the EPB is switched to the clamping state from the release state when the user presses a press-in P button, and the switched gear state is judged according to the switched EPB clamping state. The set value can be flexibly set according to actual requirements, for example, the set value is 2 km/h.
That is, when a user wants to switch from any gear of R gear, N gear or D gear to P gear to enter a parking state, the vehicle control unit detects that the current gear state is non-P gear, and the EPB is in a release state, if it detects that the vehicle speed is less than 2km/h and the user has performed an operation of pressing in a P button, the vehicle control unit starts a clamping instruction to the EPB, the EPB starts clamping from the release state after receiving the instruction, and the vehicle control unit determines that the switched gear is P gear according to the switched state of the EPB, thereby implementing the operation of entering P gear.
In other embodiments, switching the current state of the EPB to the target EPB state according to the execution operation, and determining the shifted gear state according to the execution operation or the switched target EPB state includes:
the current gear state is detected through the vehicle control unit, the current state of the EPB is detected, when the current gear state is detected to be the R/N/D gear, the current state of the EPB is detected to be the release state, the vehicle speed is detected to be less than a set value through the vehicle control unit, and when the user operates to control the vehicle to be powered off, the current state of the EPB is switched from the release state to the clamping state, and the switched gear state is judged according to the switched EPB clamping state. The set value can be flexibly set according to actual requirements, for example, the set value is 2 km/h.
That is, when a user wants to switch from any gear of R gear, N gear or D gear to P gear to enter a parking state, the vehicle control unit detects that the current gear state is non-P gear, and the EPB is in a release state, if it detects that the vehicle speed is less than 2km/h and the user has performed an operation of controlling the vehicle to be powered off, the vehicle control unit initiates a clamping instruction to the EPB, the EPB starts clamping from the release state after receiving the instruction, and the vehicle control unit determines that the switched gear is P gear according to the switched state of the EPB, thereby implementing the operation of entering P gear.
In other embodiments, switching the current state of the EPB to the target EPB state according to the execution operation, and determining the shifted gear state according to the execution operation or the switched target EPB state includes:
the method comprises the steps that the current gear state is detected through a vehicle control unit, the current state of an EPB is detected, when the current gear state is detected to be an R/N/D gear, the current state of the EPB is detected to be a release state, the vehicle speed is detected to be less than a set value through the vehicle control unit, the current state of the EPB is switched from the release state to a clamping state when a driver side door is opened and a safety belt is unfastened through user operation, and the switched gear state is determined according to the switched EPB clamping state. The set value can be flexibly set according to actual requirements, for example, the set value is 2 km/h.
That is, when a user wants to switch from any gear of R, N, or D gears to a P gear state to enter a parking state, the vehicle control unit detects that the current gear state is a non-P gear, and the EPB is in a release state, and if it is detected that the vehicle speed at this time is less than 2km/h and the user has performed an operation of opening the door of the driving side and unfastening the seat belt, the vehicle control unit launches a clamping instruction to the EPB, the EPB starts clamping from the release state after receiving the instruction, and the vehicle control unit determines that the switched gear is the P gear according to the switched state of the EPB, thereby implementing the operation of entering the P gear.
In other embodiments, switching the current state of the EPB to the target EPB state according to the execution operation, and determining the shifted gear state according to the execution operation or the switched target EPB state includes:
the method comprises the steps that the current gear state is detected through a vehicle control unit, the current state of an EPB is detected, when the current gear state is detected to be an R/N/D gear, the current state of the EPB is detected to be a release state, the vehicle speed is detected to be less than a set value through the vehicle control unit, the current state of the EPB is switched to a clamping state from the release state when a user operates to insert a charging gun, and the switched gear state is judged according to the switched EPB clamping state. The set value can be flexibly set according to actual requirements, for example, the set value is 2 km/h.
That is, when a user wants to switch from any gear of R gear, N gear or D gear to P gear to enter a parking state, the vehicle control unit detects that the current gear state is non-P gear, and the EPB is in a release state, if it detects that the vehicle speed is less than 2km/h and the user has performed an operation of inserting a charging gun, the vehicle control unit initiates a clamping instruction to the EPB, the EPB starts clamping from the release state after receiving the instruction, and the vehicle control unit determines that the switched gear is P gear according to the switched state of the EPB, thereby implementing the operation of entering P gear.
When the charging gun is in the connected state, the P-range is prohibited from being released, so that the charging process is ensured to be in a safe state.
That is to say, when detecting that the current gear state is the R/N/D gear, the current state of the EPB is the released state, and the running speed of the vehicle is less than the set value, the user performs any one of pressing the P button, controlling the entire vehicle to be powered off, opening the driving side door, and unfastening or inserting the safety belt into the charging gun, the control method can be adopted to switch the vehicle from the current gear to the P gear, so as to implement the parking operation of the vehicle, and the operation method has strong flexibility and is applicable to different parking requirements.
In some embodiments, the parking control method further comprises: in the process of switching the EPB from the release state to the clamping state, judging that the current gear is the P gear according to a P gear entering signal, and controlling the instrument equipment to flicker the P gear; after the EPB is completely switched to the clamped state, the control meter device stops the P-range flashing.
When the P-gear parking operation is executed, after the EPB judges that the current gear is the P gear in the clamping process, the control instrument unit displays the P gear to flicker, and the flicker is cancelled after the EPB completely enters the clamping state, and the gear is kept in the P gear, so that a user can clearly and clearly detect the gear switching state of the vehicle and the switching state of the EPB, and the state switching is accurately realized.
And directly entering the P gear when the EPB is in the clamping state before the user is detected to perform the operation. That is, before the user performs the operations of pressing the P button, controlling the whole vehicle to be powered off, opening the driving side door and unfastening or inserting the safety belt into the charging gun, the EPB is switched from the release state to the clamping state, and the vehicle is directly controlled to enter the P gear, so that the parking is realized.
In some embodiments, the parking control method further comprises: and controlling the vehicle to directly enter the P gear when the current state of the EPB is detected to be a release state, the speed of the vehicle is less than a set value and the operation signal is a signal for entering the P gear. That is, when it is detected that the EPB has been in the released state, the speed of the vehicle is less than 2km/h, and the user has an intention to enter the P range, the P range is directly entered according to the operation of entering the P range.
The application also proposes another EPB-based parking control device.
According to the parking control apparatus of the embodiment of the present application, the parking control apparatus is applied to the parking control method of any one of the embodiments described above, and includes: the device comprises a first detection unit, a second detection unit and a first control unit.
The first detection unit is used for detecting the current state of the EPB, the second detection unit is used for detecting a speed signal of a vehicle and an operation signal of a user, and the first control unit is used for controlling the EPB to be switched from the release state to the clamping state when the current state of the EPB is detected to be the release state, the speed of the vehicle is smaller than a set value and the operation signal is a signal for entering a P gear. It should be noted that the parking control apparatus of this embodiment is used in practical applications to execute the parking control method, and the specific operations thereof are the same as those described in the above method, and will not be described again.
The present application further proposes yet another EPB-based parking control method that facilitates implementing an EPB alone.
As shown in fig. 3, according to the EPB-based parking control method of the embodiment of the present application, the parking control method includes:
s10: the current gear state and the current state of the EPB are detected.
The current gear state of the vehicle comprises a P gear and an R/N/D gear, and the current gear state of the vehicle can be directly detected and identified through the vehicle control unit, so that the current vehicle is determined to be in a parking P gear state, an R gear state, an N gear state or a D gear state, and corresponding operation can be conveniently executed according to the current gear state.
The current state of the EPB includes a clamped state, in which the vehicle is facilitated to enter a P-range parking state, and a released state, in which the vehicle is facilitated to be switched from the P-range parking state to another state. It should be noted that the EPB is an electronic parking system, and the electronic parking system may be connected to a vehicle controller, so as to control the electronic parking system through the vehicle controller to implement automatic parking entry or automatic unlocking parking, and of course, manually switch the state of the EPB through an EPB switch.
Therefore, the gear of the vehicle can be rapidly switched conveniently by detecting the current gear state and the current state of the EPB.
S20: detecting a speed signal of the vehicle and detecting an action signal of the EPB switch;
according to the method and the device, after the current gear state of the vehicle and the current state of the EPB are determined, the gear shifting intention of a user can be identified according to the execution operation of the user, so that corresponding control operation is carried out according to the gear shifting intention of the user, and the current gear can be switched to the target gear.
The shift intention of realizing P-gear parking at a user comprises P-gear release, P-gear entering and independent operation of an EPB: the P gear is switched from a non-parking gear state to a P gear parking state, so that the vehicle enters the parking state; the P gear is released, namely the vehicle is switched from a P gear parking state to a non-parking state, so that the vehicle is released from parking; when the EPB is operated alone, the state of the EPB is switched, such as pulled up by an EPB switch.
S30: and controlling the current gear state and the current state of the EPB according to the current gear state, the current state of the EPB, the speed signal and the action signal of the EPB switch.
That is, after the current gear state and the current state of the EPB are determined, the operation intention of the user is determined by detecting the speed signal of the vehicle and the action signal of the EPB switch, so that the current state of the EPB is controlled and switched, and the current gear is controlled and switched at the same time, so that the control process of the P-gear parking of the user is realized, and after the execution operation is determined to be completed or the EPB is switched to the target state, the gear state after the switching can be determined by the vehicle control unit, so that the operation of operating the EPB alone is determined to be completed.
In some embodiments, controlling the current gear state and the current state of the EPB based on the current gear state, the current state of the EPB, the speed signal, and the actuation signal of the EPB switch comprises: and when the current gear state is detected to be the R/N/D gear, the current state of the EPB is the release state, the speed of the vehicle is less than the set value and the action signal of the EPB switch is that the EPB switch is pulled, controlling the EPB to be switched from the release state to the clamping state and controlling the current gear state to be kept unchanged.
That is to say, when the vehicle control unit detects that the current gear of the vehicle is in the R/N/D gear and the EPB is in the release state, if the vehicle control unit detects that the running speed of the vehicle is less than 2km/h and the user pulls up the EPB switch, the EPB is switched from the current release state to the clamping state, so that the EPB enters the clamping state and the gear of the entire vehicle is not changed at this time.
In some embodiments, controlling the current gear state and the current state of the EPB based on the current gear state, the current state of the EPB, the speed signal, and the actuation signal of the EPB switch comprises: and when the current gear state is detected to be the R/N/D gear, the current state of the EPB is the release state, the speed of the vehicle is less than the set value, and the action signal of the EPB switch is that the EPB switch is pulled and is off and electrified, controlling the EPB to keep the release state and controlling the current gear state to be switched from the R/N/D gear to the N gear.
That is to say, when the vehicle controller detects that the current gear of the vehicle is in the R/N/D gear and the EPB is in the release state, if the vehicle controller detects that the running speed of the vehicle is less than 2km/h and the user pulls the EPB switch and controls the EPB to turn off and power down, the EPB is controlled to always maintain the current release state, and simultaneously the current gear is controlled to be switched to the N gear, and after the EPB is powered on for the second time, the gear enters the N gear, and at this time, the EPB still maintains the release state, and the vehicle controller controls the meter unit to send out the reminding information.
The reminding information can be voice prompt, such as broadcasting 'vehicle parking failure and possible sliding' or directly displaying through a display screen, so that a user reads, detects and records the reminding information 'vehicle parking failure and possible sliding' through characters or graphs, the reminding information plays a role in prompting the user, and the user can conveniently and actively control the vehicle safely.
Further, still include: when the EPB is detected to be pulled up after the EPB is controlled to keep the release state and the current gear state is controlled to be switched from the R/N/D gear to the N gear, the EPB is controlled to be switched from the release state to the clamping state and the gear is controlled to be switched to the P gear; and if the braking signal is detected and the signal is switched to the R/N/D gear, determining to enter the R/N/D gear.
That is to say, after controlling the EPB to keep the release state and controlling the current gear state to be switched from the R/N/D gear to the N gear, if the user pulls up the EPB switch to switch the EPB from the release state to the clamping state, the vehicle control unit detects that the EPB state is in the clamping process, controls the gear to enter the P gear and keeps the P gear to flicker until the flicker is cancelled after the EPB clamping is completed, and the gear is kept in the P gear.
Or after the EPB is controlled to keep a release state and the current gear state is controlled to be switched from the R/N/D gear to the N gear, if a user steps on the brake and switches the R/N/D gear, and the vehicle control unit detects the operation, the gear is controlled to enter the R/N/D gear, so that the gear switching is realized.
The application also provides another EPB-based parking control device.
According to the parking control apparatus of the embodiment of the present application, the parking control apparatus is applied to the parking control method of any one of the embodiments described above, and includes: the device comprises a first detection unit, a second detection unit and a first control unit.
The first detection unit is used for detecting the current state of the EPB, the second detection unit is used for detecting an operation signal of a user, and the first control unit is used for controlling the current gear state and the current state of the EPB according to the current gear state, the current state of the EPB, the speed signal and an action signal of the EPB switch and switching the EPB from the current state to a target state according to the current state of the EPB and the operation signal. It should be noted that the parking control apparatus of this embodiment is used in practical applications to execute the parking control method, and the specific operations thereof are the same as those described in the above method, and will not be described again.
Therefore, the parking control method of each embodiment of the application can realize a processing mode based on the E-park locking mechanism different from the prior art, provides a new parking control mode for a user, enriches the diversity of parking control, improves the use experience of the user, and meets the driving habit of the driver.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.
In the description of the present application, "the first feature" and "the second feature" may include one or more of the features.
In the description of the present application, "a plurality" means two or more.
In the description of the present application, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact not directly but via another feature therebetween.
In the description of the present application, the first feature being "on," "above" and "over" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature.
In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims (14)

1. An EPB-based parking control method, characterized by comprising:
detecting the current state of the EPB;
detecting an operation signal of a user;
and when the current state of the EPB is detected to be a clamping state and the operation signal comprises a braking signal and a signal for switching to an R/N/D gear, the EPB is controlled to be switched from the clamping state to a releasing state.
2. The EPB-based parking control method according to claim 1, further comprising: after controlling the EPB to switch from the clamping state to the releasing state,
judging that the shifted gear is an R/N/D gear according to the braking signal and the R/N/D gear shifting signal;
and controlling instrument equipment to display the R/N/D gear.
3. The EPB-based parking control method according to claim 1, further comprising:
and when the switching to the R/N/D gear signal is detected and the braking signal is not detected, the control instrument equipment prompts a user to execute braking operation.
4. An EPB-based parking control apparatus, characterized in that the parking control apparatus is adapted to the parking control method according to any one of claims 1 to 3, and includes:
a first detection unit for detecting the current state of the EPB;
a second detection unit for detecting an operation signal of a user;
and the first control unit is used for controlling the EPB to be switched from the clamping state to the releasing state when the current state of the EPB is detected to be the clamping state and the operation signal comprises a braking signal and a R/N/D gear switching signal which are sequentially detected.
5. An EPB-based parking control method, characterized by comprising:
detecting the current state of the EPB;
detecting a speed signal of a vehicle and detecting an operation signal of a user;
and controlling the EPB to be switched from the release state to the clamping state when the current state of the EPB is detected to be the release state, the speed of the vehicle is less than a set value and the operation signal is the entering P-gear signal.
6. The EPB-based parking control method according to claim 5, wherein the entering P-range signal comprises any one of pressing a P-button, controlling the whole vehicle to be powered off, opening a driving side door, and unfastening a safety belt or inserting a charging gun.
7. The EPB-based parking control method according to claim 5, further comprising:
in the process of switching the EPB from the release state to the clamping state, judging that the current gear is P gear according to the P gear entering signal, and controlling a parking indicator lamp on instrument equipment to flash P gear;
and after the EPB is completely switched to the clamping state, controlling the parking indicating lamp to stop the P-gear flickering.
8. The EPB-based parking control method according to claim 5, further comprising:
and controlling the vehicle to directly enter the P gear when the current state of the EPB is detected to be a release state, the speed of the vehicle is less than a set value and the operation signal is a signal for entering the P gear.
9. An EPB-based parking control apparatus, characterized in that the parking control apparatus is adapted to the parking control method according to any one of claims 5 to 8, and includes:
a first detection unit for detecting the current state of the EPB;
a second detection unit for detecting a speed signal of the vehicle and detecting an operation signal of a user;
a first control unit for controlling the EPB to switch from the release state to the clamping state when the current state of the EPB is detected to be the release state, the speed of the vehicle is less than a set value and the operation signal is a signal for entering a P gear.
10. An EPB-based parking control method, characterized by comprising:
detecting the current gear state and the current state of the EPB;
detecting a speed signal of the vehicle and detecting an action signal of the EPB switch;
and controlling the current gear state and the current state of the EPB according to the current gear state, the current state of the EPB, the speed signal and the action signal of the EPB switch.
11. The EPB-based parking control method according to claim 10, wherein the controlling the current gear state and the current state of the EPB according to the current gear state, the current state of the EPB, the speed signal, and the actuation signal of the EPB switch includes:
and when the current gear state is detected to be an R/N/D gear, the current state of the EPB is a release state, the speed of the vehicle is less than a set value, and an action signal of the EPB switch is EPB switch pull-up, controlling the EPB to be switched from the release state to a clamping state and controlling the current gear state to be kept unchanged.
12. The EPB-based parking control method according to claim 10, wherein the controlling the current gear state and the current state of the EPB according to the current gear state, the current state of the EPB, the speed signal, and the actuation signal of the EPB switch includes:
and when the current gear state is detected to be an R/N/D gear, the current state of the EPB is a release state, the speed of the vehicle is less than a set value, and an action signal of the EPB switch is that the EPB switch is pulled and is off and electrified, controlling the EPB to keep the release state and controlling the current gear state to be switched from the R/N/D gear to the N gear.
13. The EPB-based parking control method according to claim 12, further comprising: after controlling the EPB to keep the release state and controlling the current gear state to be switched from the R/N/D gear to the N gear,
if the EPB switch is detected to be pulled up, controlling the EPB to be switched from a release state to a clamping state and controlling the gear to be switched to a P gear;
and if the braking signal is detected and the signal is switched to the R/N/D gear, determining to enter the R/N/D gear.
14. An EPB-based parking control apparatus, characterized in that the parking control apparatus is applied to the parking control method according to any one of claims 10 to 13, and includes:
a first detection unit for detecting the current state of the EPB;
a second detection unit for detecting an operation signal of a user;
and the first control unit is used for controlling the current gear state and the current state of the EPB according to the current gear state, the current state of the EPB, the speed signal and the action signal of the EPB switch.
CN202011023104.6A 2020-09-25 2020-09-25 Parking control method and parking control device based on EPB Pending CN114248736A (en)

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Application Number Priority Date Filing Date Title
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Publication number Priority date Publication date Assignee Title
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CN108995641A (en) * 2018-07-26 2018-12-14 中国第汽车股份有限公司 A kind of vehicle parking control method based on EPB system
CN109367535A (en) * 2018-10-15 2019-02-22 北京汽车研究总院有限公司 A kind of automatic parking control method and device
CN109835315A (en) * 2017-11-24 2019-06-04 上海汽车集团股份有限公司 A kind of automobile, parking system and its control method
CN111469830A (en) * 2019-01-24 2020-07-31 广州汽车集团股份有限公司 Electronic parking control method, device, controller, system and vehicle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107023678A (en) * 2017-03-21 2017-08-08 北京长城华冠汽车科技股份有限公司 The parking method and device of electric vehicle
CN109835315A (en) * 2017-11-24 2019-06-04 上海汽车集团股份有限公司 A kind of automobile, parking system and its control method
CN108995641A (en) * 2018-07-26 2018-12-14 中国第汽车股份有限公司 A kind of vehicle parking control method based on EPB system
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