CN115285063B - Control method and system for automatic unlocking function of vehicle welcome without feeding storage battery - Google Patents
Control method and system for automatic unlocking function of vehicle welcome without feeding storage battery Download PDFInfo
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- CN115285063B CN115285063B CN202210843806.1A CN202210843806A CN115285063B CN 115285063 B CN115285063 B CN 115285063B CN 202210843806 A CN202210843806 A CN 202210843806A CN 115285063 B CN115285063 B CN 115285063B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/20—Means to switch the anti-theft system on or off
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/40—Features of the power supply for the anti-theft system, e.g. anti-theft batteries, back-up power supply or means to save battery power
- B60R25/403—Power supply in the vehicle
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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Abstract
The invention discloses a control method and a system for automatic unlocking function of a vehicle welcome, which avoid feeding of a storage battery, wherein the method comprises the following steps: when the successful locking of the vehicle is detected and the vehicle is in an OFF gear, controlling to execute key detection operation, and acquiring detection working conditions in the key detection process in real time; controlling to execute detection exit operation in different key detection according to the acquired detection working conditions; when an intelligent effective key is detected outside the vehicle, controlling to execute key detection exit operation and key measurement operation, and acquiring key measurement working conditions in real time; according to the acquired measuring working conditions, controlling to execute measuring exit operations in different key measurements; and when the field intensity value of the position where the key is measured is from less than the field intensity preset value to greater than the field intensity preset value, controlling to execute the unlocking operation of the vehicle. According to the method and the device, the power consumption problem of the storage battery is considered, the situation that redundant feeding occurs in the key detection working condition and the measurement working condition is avoided, and the intelligent performance and the vehicle service performance of the vehicle are improved.
Description
Technical Field
The invention relates to the technical field of vehicle unlocking, in particular to a control method and a control system for an automatic vehicle welcome unlocking function, which avoid power feeding of a storage battery.
Background
With the continuous development of science and technology, the requirements of car owners on the performance of the car are continuously increased, and meanwhile, the intelligent function field of the car is continuously increased. Currently, most vehicles need to manually operate a key unlocking key or an intelligent effective key to operate a door handle PE key when the vehicles are unlocked, so that the vehicle unlocking function is realized. Some car owners may want an automatic unlocking mode that the car automatically meets own car welts, namely the car owners can be automatically identified to be approaching the car without any operation of the car owners, the car owners can be automatically unlocked, the surface phenomenon that the car automatically meets the car owners is realized, and a high-quality experience sense of information interaction between the car owners and the car locomotives is brought to the car owners.
In the prior art, the key is detected, the position of the key is further identified, and when the position of the key is detected to be in accordance with the welcome function, the unlocking can be realized. In the prior art, the basic function of welcome unlocking can be realized, but the power consumption problem of a storage battery is not considered, and the starting state of an engine is not judged, so that the engine is not started for a long time, the condition of entering the welcome is continuously met, and the key is continuously detected, so that the feeding problem of a vehicle is caused. Meanwhile, most of the storage battery voltages are virtual voltages, and most of the storage battery voltages cannot truly reflect actual voltages. In the prior art, the welcome function is only exited when the voltage of the storage battery is detected to be smaller than a certain value. However, when the voltage feedback voltage of the storage battery is the virtual voltage, the welcome function cannot be exited, and the problem that the storage battery feed vehicle cannot be started is easily caused.
In summary, the automatic vehicle welcome unlocking control method in the prior art has certain defects, can not solve the problem of power consumption of the storage battery, is easy to cause the problem of power feeding of the storage battery to exit from the welcome function, and is likely to cause the problem of incapability of starting due to power feeding of the storage battery when voltage feedback of the storage battery is wrong.
Disclosure of Invention
The invention aims to overcome the defects of the background technology and provides a control method and a system for automatic unlocking function of a vehicle welcome, which avoid feeding of a storage battery.
In a first aspect, the present application provides a control method for a vehicle welcome automatic unlocking function for avoiding battery feeding, including the following steps:
SA, when the successful locking of the vehicle is detected and the vehicle is in an OFF gear, controlling and executing key detection operation, and acquiring detection working conditions in the key detection process in real time;
step SB1, according to the acquired detection working conditions, detecting the exit operation in different key detection is controlled to be executed;
step SB2, when an intelligent effective key is detected outside the vehicle, controlling to execute key detection exit operation and key measurement operation, and acquiring key measurement working conditions in real time;
step SC1, controlling to execute measurement exit operations in different key measurements according to the acquired measurement working conditions;
and step SC2, when the field intensity value of the position where the key is measured is from less than the field intensity preset value to greater than the field intensity preset value, controlling to execute the unlocking operation of the vehicle.
In a first possible implementation manner of the first aspect, according to the first aspect, before the step SA, the method further includes the following steps:
and S0, controlling and executing pre-detection operation before key detection, wherein the pre-detection operation comprises detection of an engine starting working condition, the number of times of entering a key detection process, a whole vehicle unlocking working condition, a vehicle gear and a storage battery voltage.
In a second possible implementation manner of the first aspect, according to the first aspect, the step SB1 specifically includes the following steps:
step SB10, when detecting that the detection time is greater than the detection time preset value or the vehicle state is changed from the OFF gear to the non-OFF gear or the vehicle is changed to the unlocked state or the number of times of entering the key detection process is greater than or equal to the number preset value or the voltage of the storage battery is less than the voltage preset value, controlling to execute the detection exit operation in the key detection.
In a third possible implementation manner of the first aspect according to the first aspect, the step SB2 specifically includes the following steps:
step SB21, when detecting that the intelligent effective key exists outside the vehicle, controlling to execute the key detection exit operation to acquire the position change working condition of the vehicle key;
step SB22, obtaining a key measurement period according to the vehicle key position change working condition;
step SB23, the key measurement operation is executed according to the key measurement period, and the key measurement working condition is obtained in real time.
In a fourth possible implementation manner of the first aspect according to the third possible implementation manner of the first aspect, the step SB22 specifically includes the following steps:
in step SB221, when the vehicle key does not change at a position for a number exceeding the number preset value, the update increases the key measurement period.
In a fifth possible implementation manner of the first aspect according to the first aspect, after the step SB2, the method further includes the following steps:
step SB3, acquiring the success and failure conditions of key measurement in real time, and controlling to execute key detection operation when the failure of key measurement is acquired.
In a sixth possible implementation manner of the first aspect according to the first aspect, the step SC1 specifically includes the following steps:
and step SC10, when the measured time is detected to be greater than a preset measured time value or the vehicle is changed from the OFF gear to the non-OFF gear or the vehicle is changed to the unlocked state or the voltage of the storage battery is smaller than a preset voltage value, controlling to execute a key measurement exit operation in key measurement.
In a seventh possible implementation manner of the first aspect, the field strength value at the location of the key in step SC2 refers to a maximum value of the detected field strength values of the key relative to the main frame antenna, the secondary driving antenna and the back door antenna.
In a second aspect, the present application provides a vehicle welcome automatic unlocking function control system that avoids battery feeding, including:
the key detection and detection working condition acquisition module is used for controlling and executing key detection operation when the successful locking of the vehicle is detected and the vehicle is in an OFF gear, and acquiring the detection working condition in the key detection process in real time;
the key detection in-process exit module is in communication connection with the key detection and detection working condition acquisition module and is used for controlling and executing different key detection in-process detection exit operations according to the acquired detection working conditions;
the key measurement and measurement working condition acquisition module is in communication connection with the key detection and detection working condition acquisition module and is used for controlling and executing key detection exit operation and key measurement operation when an intelligent effective key is detected outside the vehicle, and acquiring the key measurement working condition in real time
The in-key-measurement exiting module is in communication connection with the key measurement and measurement working condition acquisition module and is used for controlling and executing vehicle exiting operations in different key measurements according to the acquired measurement working conditions;
the vehicle unlocking control module is in communication connection with the key measurement and measurement working condition acquisition module and is used for controlling the vehicle unlocking operation to be executed when the field intensity value of the position where the key is measured is from less than the field intensity preset value to greater than the field intensity preset value.
In a first possible implementation manner of the second aspect, the device further includes a pre-detection module, configured to control performing a pre-detection operation before the key detection, where the pre-detection operation includes detecting an engine start condition, a number of times of entering the key detection procedure, a vehicle unlock condition, a vehicle gear, and a battery voltage.
Compared with the prior art, the invention has the following advantages:
according to the control method for the automatic vehicle welcome unlocking function, which is capable of avoiding power supply of the storage battery, the power consumption problem of the storage battery is considered, the detection working condition and the measurement working condition are obtained in the key detection process and the key measurement process, the detection exit operation in the different key detection and the measurement exit operation in the key measurement process are controlled to be executed according to the detection working condition and the measurement working condition, the power supply condition of the storage battery in the key detection working condition and the measurement working condition is avoided, and the intelligent performance of the vehicle and the service performance of the vehicle are improved.
Drawings
Fig. 1 is a flowchart of a method for controlling a vehicle welcome automatic unlocking function for avoiding battery feeding according to an embodiment of the present application;
FIG. 2 is a flow chart of a method for key position unchanged measurement period control provided by an embodiment of the present application;
FIG. 3 is a flow chart of a method for key position change measurement cycle control provided by an embodiment of the present application;
fig. 4 is a method flowchart of a vehicle automatic welcome unlocking control method provided in an embodiment of the present application;
fig. 5 is a flowchart of a welcome unlocking non-operation automatic falling lock control method provided by an embodiment of the application;
FIG. 6 is a vehicle key detection antenna pattern provided in an embodiment of the present application;
FIG. 7 is a schematic diagram of a key measurement system provided by an embodiment of the present application;
fig. 8 is a functional block diagram of a vehicle welcome automatic unlocking function control system for avoiding battery feeding according to an embodiment of the present application.
Detailed Description
Reference will now be made in detail to the present embodiments of the invention, examples of which are illustrated in the accompanying drawings. While the invention will be described in conjunction with the specific embodiments, it will be understood that they are not intended to limit the invention to the described embodiments. On the contrary, it is intended to cover alternatives, modifications, and equivalents as may be included within the spirit and scope of the invention as defined by the appended claims. It should be noted that the method steps described herein may be implemented by any functional block or arrangement of functions, and any functional block or arrangement of functions may be implemented as a physical entity or a logical entity, or a combination of both.
The present invention will be described in further detail below with reference to the drawings and detailed description for the purpose of enabling those skilled in the art to understand the invention better.
Note that: the examples to be described below are only one specific example, and not as limiting the embodiments of the present invention necessarily to the following specific steps, values, conditions, data, sequences, etc. Those skilled in the art can, upon reading the present specification, make and use the concepts of the invention to construct further embodiments not mentioned in the specification.
The existing automatic welcome unlocking method for the vehicle does not consider the power consumption problem of the storage battery or judge the starting state of the engine, so that the engine is not started for a long time, the vehicle intermittently enters the welcome condition, the key is continuously detected, and the feeding problem of the storage battery of the vehicle is caused.
When the engine is started, the storage battery is charged, and when the engine is started, power is not fed, but when the engine is not started all the time, power consumption is consumed all the time, and power feeding of the storage battery occurs.
Referring to fig. 1, an embodiment of the present application provides a method and a system for controlling an automatic vehicle welcome unlocking function for avoiding battery feeding, including the following steps:
step SA, when the successful locking of the vehicle is detected and the vehicle is in an OFF gear, indicating that the vehicle owner is likely to leave the vehicle, controlling and executing key detection operation, detecting whether an intelligent effective key exists outside the vehicle, and acquiring detection working conditions in the key detection process in real time;
step SB1, according to the acquired detection working condition, detecting the exit operation in different key detection is controlled to be executed so as to achieve the aim of saving the power consumption of the storage battery;
step SB2, when an intelligent effective key is detected outside the vehicle, controlling to execute key detection exit operation and key measurement operation, and acquiring key measurement working conditions in real time;
step SC1, according to the acquired measuring working conditions, controlling to execute measuring exit operations in different key measurements so as to achieve the aim of saving power consumption of the storage battery;
and step SC2, when the field intensity value of the position where the key is measured is from less than the field intensity preset value to greater than the field intensity preset value, controlling to execute the vehicle unlocking operation so as to realize the vehicle welcome unlocking function and improve the information interaction experience of the vehicle and the vehicle owner.
According to the control method for the automatic vehicle welcome unlocking function, which is capable of avoiding power feeding of the storage battery, the detection working condition and the measurement working condition are acquired in the key detection process and the key measurement process, and the detection exit operation and the measurement exit operation in the key measurement process in different key detection are controlled to be executed according to the detection working condition and the measurement working condition, so that the occurrence of redundant power feeding in the key detection working condition and the measurement working condition is avoided, and the intelligent performance of the vehicle and the service performance of the vehicle are improved.
In an embodiment, before the step SA, the method further includes the following steps:
step S0, controlling and executing pre-detection operation before key detection, wherein the pre-detection operation comprises the steps of detecting the starting condition of an engine, the number of times of entering a key detection process, the unlocking condition of the whole vehicle, the gear position of the vehicle and the voltage of a storage battery, and when the engine is not started all the time and the storage battery consumes power, the feeding problem of the storage battery can occur and the welcome operation process needs to be exited; when the engine is never started and enters the key detection process for many times, the feeding problem of the storage battery is also caused, and the welcome operation process is required to be exited; when the voltage of the storage battery is smaller than the voltage preset value, the welcome operation flow needs to be exited so as to meet the normal non-welcome function of the storage battery.
In one embodiment, the step S0 is specifically implemented as:
acquiring the times of entering a key detection process;
acquiring a voltage value of a storage battery;
when the number of times of entering key detection is smaller than the number preset value and the voltage of the storage battery is larger than the voltage preset value, the condition of entering key detection flow is judged to be met, and then the method step of executing step SA can be executed. Under the condition that the engine is not started, the engine enters the key detection flow for multiple times, so that the condition of power feeding of the storage battery occurs, the energy-saving protection of insufficient voltage of the storage battery is avoided, and the vehicle welcome unlocking operation is exited.
In an embodiment, it is first determined whether a vehicle has a vehicle locking action or whether the controller is in a sleep state, and if the battery voltage is greater than V, it is determined whether the vehicle is in a locked state and the vehicle is in an OFF gear and enters a key detection process for a number of times i < i0, where i0 is a preset number of times value. If so, the vehicle is successfully locked, the vehicle is in the OFF state, and the successful locking indicates that the vehicle owner is likely to leave the vehicle. Therefore, a key detection flow is entered, and whether an intelligent effective key is arranged outside the vehicle is detected.
In an embodiment, the key detection is likely to be detected when the controller is dormant, so as to avoid the situation that the vehicle always feeds the storage battery to the key detection because the key is not detected all the time, after entering the key detection process, the timer 1 is started, and if the timer 1 is greater than t1 and the key is not detected yet, the key detection operation process is exited.
In an embodiment, the vehicle welcome unlocking operation flow of the present application is the method steps of step SA, step SB1, step SB2, step SC1 and step SC 2.
In one embodiment, when the engine state is detected to be the start state, and when the continuous start time of the engine is detected to be greater than the preset start time value t5, the number i of times of entering the key detection process is assigned to be 0. When the engine is detected to be not started, or when the continuous starting time of the engine is not more than a preset starting time value, the number of times that the vehicle enters the key detection process every time is increased by 1.
In one embodiment, the step SB1 specifically includes the following steps:
step SB10, when detecting that the detection time is greater than the detection time preset value or the vehicle state is changed from the OFF gear to the non-OFF gear or the vehicle is changed to the unlocked state or the number of times of entering the key detection process is greater than or equal to the number preset value or the voltage of the storage battery is less than the voltage preset value, controlling to execute the detection exit operation in the key detection.
After entering a key detection flow, continuously detecting an effective key outside the vehicle, simultaneously judging whether the detection time on the first timer is greater than a detection time preset value t1 in real time, and when the detection time preset value is reached, detecting no key yet, and exiting a key detection operation to avoid power feeding of a storage battery; or the gear of the vehicle is changed into a non-OFF gear, which indicates that people exist in the vehicle and a key exists, and the welcome unlocking function is not needed; or the vehicle is in an unlocking state, the number i of times of welcome unlocking or key detection process entering is not less than a preset number i0, when the key detection process is continuously carried out for multiple times, and the engine is not started during the key detection process, in order to avoid feeding the storage battery, the operation process of key detection is carried out; or the voltage of the storage battery is smaller than V, if yes, the key detection operation flow is exited, and whether the whole vehicle locking action of the vehicle occurs or whether the controller is in a dormant state is judged again.
In an embodiment, during the key detection operation, whether an intelligent key is valid outside the vehicle is continuously detected, and when the intelligent valid key outside the vehicle is detected, the control is performed to exit the key detection operation and enter the key measurement operation, and the timer 2 is started.
In one embodiment, the step SB2 specifically includes the following steps:
step SB21, when detecting that the intelligent effective key exists outside the vehicle, controlling to execute the key detection exit operation to acquire the position change working condition of the vehicle key;
step SB22, obtaining a key measurement period according to the vehicle key position change working condition;
step SB23, the key measurement operation is executed according to the key measurement period, and the key measurement working condition is obtained in real time.
In one embodiment, after the step SB2, the method further comprises the steps of:
step SB3, acquiring the success and failure conditions of key measurement in real time, and controlling to execute key detection operation when the failure of key measurement is acquired. And after entering the key measurement operation flow, judging whether the key measurement fails in real time. The situation that the intelligent effective key does not exist on the periphery of the vehicle can cause failure of key measurement is that an owner comes out of the vehicle and locks the vehicle, after the key is successfully detected, the owner holds the key to leave the vehicle, so that the failure of the key is caused, the owner can come back at any time after leaving the vehicle, if the owner returns to the periphery of the vehicle in the later period, the automatic vehicle welcome unlocking function is realized, therefore, when the key is detected to fail, the owner enters the key detection process again, and when the owner holds the key to arrive at the periphery of the vehicle again, the key can be detected again after the key is successfully detected, so that the welcome unlocking function is realized.
In one embodiment, the step SB22 specifically includes the following steps:
step SB221, when the duration of the change of the vehicle key at a position exceeds the preset value, the key measurement period is updated and increased, the power consumption of the storage battery is reduced, and the condition of feeding the storage battery caused by the continuous key measurement operation is avoided;
in step SB222, when the vehicle key changes at a position, the update shortens the key measurement period to accurately obtain the accurate position of the smart key.
In a more specific embodiment, as shown in fig. 2, the step SB221 is implemented as:
when the key measurement operation flow is entered from the non-key measurement operation flow, the key measurement period t is initially set to t3, and the number of times k1 of key position non-change is assigned to 0.
Memorizing key measurement results of nearly n1 times, and judging whether the maximum field intensity value minus the minimum field intensity value in the key measurement results of n1 times is smaller than the minimum field intensity value, wherein the field intensity value is the maximum field intensity value in the field intensity values of the main driving antenna/auxiliary driving antenna and the back door respectively corresponding to 3 field intensity values in each measurement, the maximum field intensity value is the maximum value in the maximum field intensity values in the key measurement process of n1 times, and the minimum field intensity value is the minimum value in the maximum field intensity values in the key measurement process of n1 times. If the value is not smaller than the preset value, the position of the key of the vehicle is not obviously remained at a certain position for nearly n1 times, the number of unchanged key positions k1 is assigned to be 0, and the field intensity value of the position of the key for nearly n1 times is remembered.
If the maximum field intensity value minus the minimum field intensity value in the n1 key measurement results is smaller than the minimum field intensity value, the fact that the vehicle key is unchanged at a certain position is indicated, and the number of unchanged key position k1 is assigned as k1+1. Detecting whether the number of times k1 of unchanged key positions is larger than m1, and if the number of times k1 of unchanged key positions is not larger than m1, remembering the field intensity value of the position of the key close to n1 times. If the measured value is larger than m1 (the measured value is not changed after the position is detected for a plurality of times, the period is changed, the error detection is avoided, the measured period is increased, and therefore the welcome unlocking cannot be realized), the key measured period is increased, and the key measured period t is assigned as t4, wherein t4 is larger than t3. And remembers the field intensity value of the position where the key is located for nearly n1 times.
As shown in fig. 3, when the key measurement flow is entered from the non-key measurement flow, the key measurement period t is preliminarily set to t3. And memorizing the key measurement results of nearly n2 times, judging whether the maximum field intensity value minus the minimum field intensity value in the key measurement results of n2 times is not smaller than the minimum field intensity value (the field intensity value is the maximum field intensity value in 3 field intensity values of the main driving antenna/auxiliary driving antenna and the back tail gate which are returned for each measurement), if not, indicating that the key position is changed, assigning a measurement period t as t3, and memorizing the field intensity value of the position of the key of nearly n2 times. Otherwise, remembering the field intensity value of the position where the key is located for n2 times.
In order to timely identify that the position of the key changes, the measurement period is updated, and the situation that the welcome unlocking function cannot be achieved is avoided, and n2 is smaller than n1.
In one embodiment, the step SC1 specifically includes the following steps:
step SC10, after entering the key vehicle operation, detecting the field intensity of the position of the intelligent effective key outside the vehicle once every preset ts, judging whether the timer 2 is larger than a preset measurement time value t2, and when the preset measurement time value is reached, still not meeting the welcome unlocking condition, wherein the vehicle owner can rest/do other things around the vehicle, does not intend to enter the vehicle, and exits the key measurement operation to avoid the feeding of a storage battery; or the gear of the vehicle is changed into a non-OFF gear, which indicates that people exist in the vehicle and a key exists, and the welcome unlocking function is not needed; or the vehicle is in an unlocking state, and the welcome unlocking is not needed again; or the voltage of the storage battery is smaller than a voltage preset value V; when the measured time is detected to be larger than a preset measured time value or the vehicle is changed from the OFF gear to the non-OFF gear or the vehicle is changed to the unlocked state or the voltage of the storage battery is smaller than a preset voltage value, controlling to execute key measurement exit operation in key measurement, namely exiting the vehicle welcome unlocking operation flow, and judging whether the vehicle is subjected to whole vehicle locking action or whether the controller is changed to the dormant state again.
In an embodiment, as shown in fig. 4, after the step SC10 is implemented in the key measurement procedure, each ts (the size of ts indicates the key measurement period, the key measurement period will change according to the position of the key), the following section describes the key measurement period, and the field intensity of the position of the key is detected once, the measurement procedure is to detect one of the keys outside the vehicle, and continuously detect the position of the key until the detection fails, and re-detect the detected key, and then the detected key is replaced to perform measurement, and during the measurement, the measured key will not change, unless the measured key is withdrawn to enter the measurement again, the field intensity return value is the field intensity value relative to the main driving/auxiliary driving/rear door antenna, therefore, each measured field intensity return value has 3 field intensities, and the field intensity return value corresponding to the main driving/auxiliary driving/rear door antenna of the key. The closer to the antenna, the larger the field intensity value is, so that the largest field intensity in the 3 field intensity values is extracted and used as the field intensity of the position where the key is located. When the field intensity value of the position where the key is detected to be smaller than E1 and larger than E1, namely the vehicle owner approaches the vehicle from a position far away from the vehicle, namely the vehicle owner approaches the vehicle, a vehicle unlocking command is sent at the moment, the vehicle welcome unlocking function is realized, and the light can be turned on to welcome the vehicle owner according to the requirements of manufacturers.
In an embodiment, the field strength value of the key in the step SC2 refers to the maximum value of the detected field strength values of the key relative to the main frame antenna, the secondary driving antenna and the back door antenna.
In an embodiment, as shown in fig. 6, after the step SC2, the following steps are further included:
firstly judging whether the greeting unlocking operation is triggered to complete the greeting unlocking function, if the greeting unlocking function is completed, starting a timer 0, detecting whether the state of the vehicle is changed in real time, and if the state of the vehicle is changed, judging whether the greeting unlocking operation is triggered again. And if the vehicle state still does not change within the time preset value t0s after unlocking, sending a whole vehicle locking command.
When the state of the vehicle still does not change within t0s, the vehicle owner is shown to approach the vehicle by holding the key, the welcome unlocking function is triggered, and the vehicle is unlocked. However, the vehicle owner does not enter the vehicle within t0s, and no other member is in the vehicle, and the vehicle state is unchanged, the vehicle owner is considered to be only close to the vehicle, but does not intend to enter the vehicle. In order to avoid the risk of theft of the vehicle when the vehicle is continuously maintained in an unlocked state, a vehicle locking command is sent to lock the whole vehicle. Therefore, when the vehicle owner approaches the vehicle but does not enter the vehicle, after welcome unlocking is performed, the vehicle can be automatically locked even if the vehicle owner does not leave the vehicle through any operation, and the risk of theft cannot be caused.
As described above, if the brake pedal is depressed/the vehicle one-touch start switch is depressed/the door state is changed, or the like, the vehicle state is considered to be changed.
The parameters t0, t1, t2, t3, m1, n1, i0 and the like mentioned in the application are all set values, and can be set to different values according to different manufacturers.
In one embodiment, a vehicle antenna arrangement and its key detection area is shown in FIG. 1. Wherein, the elliptical shadow area corresponding to the antenna is the key detection range of the antenna. The present invention focuses on the implementation of functions, not limited to this system.
As shown in fig. 1, a is a car door handle, b is a car door handle key detection antenna 1, c is a car interior front, middle and rear row key detection antenna, d is a car tail door key detection antenna, and e is a car door handle key detection antenna 2.
Before key detection/measurement operation, the key and PEPS corresponding to the vehicle are required to be mutually learned, and key information is stored, so that a foundation is laid for subsequent key detection and measurement. When the key is detected, the information sent by the PEPS controller contains the key information. If the information sent by the PEPS controller does not contain the key information, the key does not send a relevant high-frequency signal to the PEPS controller after receiving the detection signal; if the high frequency signal transmitted by the key does not contain the key information, the PEPS controller does not receive the signal; therefore, the key detection method can effectively detect/measure the intelligent keys bound to the vehicle, and can effectively prevent false detection/measurement of the intelligent keys of other vehicles, thereby causing false unlocking operation.
In the key detection in the application, the key is detected within a certain time after the vehicle is powered down (turned OFF), and the key detection strategy is in a RAM storage section of the controller, so that the dormancy function of the controller is not affected. That is, after the controller is dormant, only the RAM area works, so that the power consumption of the vehicle can be effectively reduced. Therefore, after the vehicle is dormant, the vehicle key detection function can be completed, and the result of whether the key is detected or not is finally determined according to the returned result of the key.
As shown in fig. 2, in this application, the key measurement refers to that the PEPS controller drives the antenna outside the vehicle (the key detection antenna at the door handle of the vehicle and the key detection antenna at the tail door of the vehicle) to send a low-frequency signal, and after the key receives the low-frequency signal, the PEPS is sent a high-frequency signal to complete the key measurement process of binding the vehicle. And obtaining the field intensity value of the position of the key relative to the door handle antenna/the back door antenna according to the high-frequency signal of the key loop. Wherein, the larger the field intensity value is, the closer the distance between the intelligent key and the antenna is.
The PEPS controller drives the antenna to transmit a low frequency signal, and the transmission area range of the PEPS controller is the key measurement area of the antenna, as shown in fig. 1. The measurement area may be large or small according to the requirements of the vehicle manufacturer. The current setting of the driving antenna can realize the calibration work of the measuring area.
Based on the same inventive concept, please refer to fig. 8, the present application provides a vehicle welcome automatic unlocking function control system avoiding battery feeding, comprising:
the key detection and detection working condition acquisition module 100 is used for controlling and executing key detection operation when the successful locking of the vehicle is detected and the vehicle is in an OFF gear, and acquiring detection working conditions in the key detection process in real time;
the in-key-detection exit module 210 is in communication connection with the key detection and detection working condition acquisition module 110, and is configured to control execution of different in-key-detection exit operations according to the acquired detection working conditions;
the key measurement and measurement condition acquisition module 220 is in communication connection with the key detection and detection condition acquisition module 110, and is configured to control execution of a key detection exit operation and a key measurement operation when an intelligent valid key is detected outside the vehicle, and acquire a key measurement condition in real time
The in-key-measurement exiting module 310 is in communication connection with the in-key-measurement and measurement condition obtaining module 210, and is configured to control and execute vehicle exiting operations in different key measurements according to the obtained measurement condition;
the vehicle unlocking control module 320 is communicatively connected to the key measurement and measurement condition obtaining module 210, and is configured to control to perform a vehicle unlocking operation when the measured field intensity value of the location where the key is located is from less than the field intensity preset value to greater than the field intensity preset value.
In an embodiment, the device further comprises a pre-detection module, wherein the pre-detection module is used for controlling pre-detection operation before key detection, and the pre-detection operation comprises detection of engine starting working conditions, key detection flow entering times, a whole vehicle unlocking working condition, a vehicle gear and storage battery voltage.
Based on the same inventive concept, the embodiments of the present application also provide a computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements all or part of the method steps of the above method.
The present invention may be implemented by implementing all or part of the above-described method flow, or by instructing the relevant hardware by a computer program, which may be stored in a computer readable storage medium, and which when executed by a processor, may implement the steps of the above-described method embodiments. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, executable files or in some intermediate form, etc. The computer readable medium may include: any entity or device capable of carrying computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer Memory, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), an electrical carrier signal, a telecommunications signal, a software distribution medium, and so forth. It should be noted that the content of the computer readable medium can be appropriately increased or decreased according to the requirements of the jurisdiction's jurisdiction and the patent practice, for example, in some jurisdictions, the computer readable medium does not include electrical carrier signals and telecommunication signals according to the jurisdiction and the patent practice.
Based on the same inventive concept, the embodiments of the present application further provide an electronic device, including a memory and a processor, where the memory stores a computer program running on the processor, and when the processor executes the computer program, the processor implements all or part of the method steps in the above method.
The processor may be a central processing unit (Central Processing Unit, CP U), but may also be other general purpose processors, digital signal processors (Digital Signal Pr ocessor, DSP), application specific integrated circuits (Application Specific Integrated Circ uit, ASIC), off-the-shelf programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like, the processor being a control center of the computer device, and the various interfaces and lines connecting the various parts of the overall computer device.
The memory may be used to store computer programs and/or modules, and the processor implements various functions of the computer device by running or executing the computer programs and/or modules stored in the memory, and invoking data stored in the memory. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function (e.g., a sound playing function, an image playing function, etc.); the storage data area may store data (e.g., audio data, video data, etc.) created according to the use of the handset. In addition, the memory may include high-speed random access memory, and may also include non-volatile memory, such as a hard disk, memory, plug-in hard disk, smart Media Card (SMC), secure Digital (SD) Card, flash Card (flash Card), at least one disk storage device, flash memory device, or other volatile solid state storage device.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, server, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), servers and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (6)
1. The control method for the automatic unlocking function of the welcome of the vehicle for avoiding the feeding of the storage battery is characterized by comprising the following steps:
SA, when the successful locking of the vehicle is detected and the vehicle is in an OFF gear, controlling and executing key detection operation, and acquiring detection working conditions in the key detection process in real time;
step SB1, according to the acquired detection working conditions, detecting the exit operation in different key detection is controlled to be executed;
the step SB1 specifically comprises the following steps:
step SB10, when detecting that the detection time is greater than the detection time preset value or the vehicle state is changed from the OFF gear to the non-OFF gear or the vehicle is changed into the unlocking state or the number of times of entering the key detection process is greater than or equal to the number preset value or the voltage of the storage battery is less than the voltage preset value, controlling to execute the detection exit operation in the key detection;
step SB2, when an intelligent effective key is detected outside the vehicle, controlling to execute key detection exit operation and key measurement operation, and acquiring key measurement working conditions in real time;
the step SB2 specifically comprises the following steps:
step SB21, when detecting that the intelligent effective key exists outside the vehicle, controlling to execute the key detection exit operation to acquire the position change working condition of the vehicle key;
step SB22, obtaining a key measurement period according to the vehicle key position change working condition;
step SB23, controlling to execute key measurement operation according to the key measurement period, and acquiring key measurement working conditions in real time;
the step SB22 specifically comprises the following steps:
step SB221, updating and increasing the key measurement period when the vehicle key is not changed at a position for a duration exceeding the preset number;
step SB222, updating and shortening the key measurement period when the vehicle key is changed at a position;
step SC1, controlling to execute measurement exit operations in different key measurements according to the acquired measurement working conditions;
the step SC1 specifically includes the following steps:
step SC10, when detecting that the measured time is greater than a measured time preset value or the vehicle is changed from an OFF gear to a non-OFF gear or the vehicle is changed to an unlocked state or the voltage of the storage battery is smaller than a voltage preset value, controlling to execute a key measurement exit operation in key measurement;
and step SC2, when the field intensity value of the position where the key is measured is from less than the field intensity preset value to greater than the field intensity preset value, controlling to execute the unlocking operation of the vehicle.
2. The method for controlling the automatic vehicle welcome unlocking function avoiding power feeding of a storage battery according to claim 1, further comprising the steps of, before the step SA:
and S0, controlling and executing pre-detection operation before key detection, wherein the pre-detection operation comprises detection of an engine starting working condition, the number of times of entering a key detection process, a whole vehicle unlocking working condition, a vehicle gear and a storage battery voltage.
3. The method for controlling the automatic vehicle welcome unlocking function avoiding power feeding of a storage battery according to claim 1, further comprising the steps of, after the step SB 2:
step SB3, acquiring the success and failure conditions of key measurement in real time, and controlling to execute key detection operation when the failure of key measurement is acquired.
4. The method for controlling the automatic vehicle welcome unlocking function without battery feeding according to claim 1, wherein the field intensity value of the key in the step SC2 is the maximum value of the detected field intensity values of the key relative to the main frame antenna, the secondary driving antenna and the back door antenna.
5. A vehicle welcome automatic unlocking function control system that avoids battery feed, characterized by comprising:
the key detection and detection working condition acquisition module is used for controlling and executing key detection operation when the successful locking of the vehicle is detected and the vehicle is in an OFF gear, and acquiring the detection working condition in the key detection process in real time;
the key detection in-process exit module is in communication connection with the key detection and detection working condition acquisition module and is used for controlling and executing different key detection in-process detection exit operations according to the acquired detection working conditions;
according to the acquired detection working conditions, the detection exit operation in different key detection is controlled to be executed, and the method specifically comprises the following steps:
when the detection time is detected to be greater than a detection time preset value or the vehicle state is changed from an OFF gear to a non-OFF gear or the vehicle is changed into an unlocking state or the number of times of entering a key detection process is greater than or equal to a number of times preset value or the voltage of the storage battery is smaller than a voltage preset value, controlling to execute detection exit operation in key detection;
the key measurement and measurement working condition acquisition module is in communication connection with the key detection and detection working condition acquisition module and is used for controlling the execution of key detection exit operation and key measurement operation when an intelligent effective key is detected outside the vehicle, and acquiring the key measurement working condition in real time;
when detecting that an intelligent effective key exists outside the vehicle, controlling and executing key detection exit operation and key measurement operation, and acquiring key measurement working conditions in real time, the method specifically comprises the following steps:
when detecting that an intelligent effective key exists outside the vehicle, controlling to execute key detection exit operation to acquire a vehicle key position change working condition;
acquiring a key measurement period according to a vehicle key position change working condition;
controlling to execute key measurement operation according to a key measurement period, and acquiring key measurement working conditions in real time;
the key measurement period is obtained according to the vehicle key position change working condition, and the key measurement period comprises the following steps:
updating and increasing the key measurement period when the duration of the change of the vehicle key at a position exceeds a preset value;
updating and shortening a key measurement period when a vehicle key changes at a position;
the in-key-measurement exiting module is in communication connection with the key measurement and measurement working condition acquisition module and is used for controlling and executing vehicle exiting operations in different key measurements according to the acquired measurement working conditions;
according to the acquired measurement working conditions, the vehicle exit operation in different key measurement is controlled to be executed, and the method specifically comprises the following steps:
when the measured time is detected to be greater than a measured time preset value or the vehicle is changed from an OFF gear to a non-OFF gear or the vehicle is changed to an unlocking state or the voltage of the storage battery is smaller than a voltage preset value, controlling to execute a key measurement exit operation in key measurement;
the vehicle unlocking control module is in communication connection with the key measurement and measurement working condition acquisition module and is used for controlling the vehicle unlocking operation to be executed when the field intensity value of the position where the key is measured is from less than the field intensity preset value to greater than the field intensity preset value.
6. The system of claim 5, further comprising a pre-detection module configured to control a pre-detection operation prior to performing a key detection, the pre-detection operation including detecting an engine start condition, a number of key detection passes entered, a vehicle unlatch condition, a vehicle gear, and a battery voltage.
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