CN110789514A

CN110789514A - Automobile key searching method and device and vehicle

Info

Publication number: CN110789514A
Application number: CN201911041064.5A
Authority: CN
Inventors: 马小龙; 汪巍; 曾国宾
Original assignee: Dongfeng Motor Co Ltd
Current assignee: Dongfeng Motor Co Ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-02-14
Anticipated expiration: 2039-10-29
Also published as: CN110789514B

Abstract

The invention relates to the technical field of automobiles, and discloses a method and a device for searching an automobile key and an automobile, wherein the method comprises the following steps: and triggering key pre-search when detecting that at least one of the brake or the clutch has a state change, and responding to a one-key starting instruction to start the vehicle within a preset time period if a legal key is searched. The method adopts the state change of the brake as a trigger event, triggers key pre-search in advance, and avoids misjudgment and various abnormal search conditions by setting reasonable overtime waiting, thereby solving the contradiction between the overtime waiting of key search and quick start, improving the reliability of vehicle start and realizing quick and safe start.

Description

Automobile key searching method and device and vehicle

Technical Field

The invention relates to the technical field of automobiles, in particular to a method and a device for searching an automobile key and an automobile.

Background

The intelligent keyless starting system is widely applied to fuel vehicles, and is used as a new choice for replacing the traditional ignition key and ignition lock, and a driver only needs to press a starting button or switch to complete the starting of an engine. The automobile electronic intelligent control system is convenient, safe and fashionable to operate and more accords with the trend of automobile electronic intelligence.

The key is used as an important part of the keyless starting system, and how to search and authenticate the key in the working process is a key technical point, although the technical scheme of many manufacturers at the present stage is that the key is searched and authenticated when a key starting button is pressed, or the key is periodically authenticated when the brake is pressed as a pre-authentication triggering condition. However, the simple brake-on state does not accurately reflect the user's intention to start, and if the brake detection switch has a problem, a long-time repeated key search may occur when the vehicle is erroneously detected as the brake-on state without actually pressing the brake.

And the key result is not clearly defined in the prior art, and the following defects exist:

determining a false judgment of failure when one search fails;

various abnormal overtime in the pre-search process and abnormal conditions such as first stepping on a brake and then authorizing cannot be covered;

the contradiction between the need for a long timeout latency for key search and the need for a fast response for startup cannot be thoroughly resolved.

Disclosure of Invention

The invention aims to provide a method, a device and a vehicle for searching an automobile key, wherein the method adopts the state change of a brake as a trigger event, triggers key pre-search in advance, and avoids misjudgment and various abnormal searching conditions by setting reasonable overtime waiting, thereby solving the contradiction between the overtime waiting for key search and quick start, improving the reliability of vehicle start and realizing quick and safe start.

In order to solve the above technical problem, an embodiment of the present invention provides a method for searching for a key of an automobile, including:

triggering key pre-search when detecting at least one of the brake or the clutch to generate state change;

and if a legal key is searched, responding to a one-key starting instruction within a preset time period, and starting the vehicle.

Preferably, the method for searching for a key of a car further includes:

and outside the preset time period, responding to a one-key starting instruction, triggering key search, and starting the vehicle if a legal key is searched.

Wherein, trigger key preliminary search and trigger key search all include:

triggering LF search;

when a legal key is not searched, simultaneously triggering LF search, TP search and Bluetooth search; after TP search and Bluetooth search are triggered, continuous search is carried out until legal keys are searched or overtime is reached, wherein the legal keys comprise automobile keys and Bluetooth keys;

and in the LF search, if a legal key is searched, stopping the TP search and the Bluetooth search.

Preferably, the method for searching for a key of a vehicle further includes, when a valid key is not searched for, the steps of:

through panel board output suggestion to the suggestion user presses close to a key start button with car key, authorizes the bluetooth key simultaneously.

Wherein the time-out value of the trigger key pre-search is greater than the time-out value of the trigger key search.

Wherein, at least one of the brake or the clutch changes state, and the state change is as follows:

the state of any one of the steps of releasing to pressing the brake, releasing to pressing the clutch, releasing to pressing the brake and releasing to pressing the brake.

Preferably, the method for searching for a key of an automobile further includes, if no legal key is found, the steps of:

and outputting a prompt through the instrument panel to prompt the user that a legal key is not searched.

An embodiment of the present invention further provides a device for searching for a key of an automobile, including:

the pre-search unit is used for triggering key pre-search when detecting that at least one of the brake or the clutch has a state change;

and the starting unit is used for responding to a one-key starting instruction within a preset time period and starting the vehicle if a legal key is searched.

Preferably, the car key search device further includes:

and the searching unit is used for responding to a one-key starting instruction outside the preset time period, triggering key searching, and starting the vehicle if a legal key is searched.

Wherein, trigger key preliminary search and trigger key search all include:

a First Search unit for triggering LF Search;

the Search Retry unit is used for triggering LF Search, TP Search and Bluetooth Search simultaneously when a legal key is not searched; after TP search and Bluetooth search are triggered, continuous search is carried out until legal keys are searched or overtime is reached, wherein the legal keys comprise automobile keys and Bluetooth keys;

the Search Retry unit is further configured to Search in the LF, and stop the TP Search and the bluetooth Search if a legal key is searched.

An embodiment of the present invention also provides a vehicle, including:

one or more processors;

a storage device coupled to the processor for storing one or more programs;

when the one or more programs are executed by the one or more processors, the one or more processors implement the car key search method as described above.

Compared with the prior art, the invention provides a method, a device and a vehicle for searching an automobile key, wherein the method comprises the following steps: and triggering key pre-search when detecting that at least one of the brake or the clutch has a state change, and responding to a one-key starting instruction to start the vehicle within a preset time period if a legal key is searched. The method adopts the state change of the brake as a trigger event, triggers key pre-search in advance, and avoids misjudgment and various abnormal search conditions by setting reasonable overtime waiting, thereby solving the contradiction between the overtime waiting of key search and quick start, improving the reliability of vehicle start and realizing quick and safe start.

Drawings

Fig. 1 is a flowchart of a method for searching for a car key according to an embodiment of the present invention;

FIG. 2 is a flow chart of a method for searching for a key of a vehicle in accordance with a preferred embodiment of the present invention;

FIG. 3 is a signaling diagram of a search for a car key in an embodiment of the present invention;

fig. 4 is a block diagram showing a car key search device according to an embodiment of the present invention;

fig. 5 is a block diagram of a car key search apparatus according to a preferred embodiment of the present invention;

fig. 6 is a block diagram of an electronic device in an embodiment of the invention.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be understood that the step numbers used herein are for convenience of description only and are not used as limitations on the order in which the steps are performed.

It is to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

The terms "comprises" and "comprising" indicate the presence of the described features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

The term "and/or" refers to and includes any and all possible combinations of one or more of the associated listed items.

Please refer to fig. 1 and fig. 3.

An embodiment of the present invention provides a method for searching for a key of an automobile, including:

s100, triggering key pre-search when detecting that at least one of the brake and the clutch has a state change.

And S200, if a legal key is searched, responding to a one-key starting instruction within a preset time period, and starting the vehicle.

Wherein, at least one of the brake or the clutch changes state, and the state change is as follows: the state of any one of the steps of releasing to pressing the brake, releasing to pressing the clutch, releasing to pressing the brake and releasing to pressing the brake.

In a specific embodiment, at least one of the brake and the clutch is subjected to state change to serve as a trigger condition of key pre-search, and the key pre-search is performed once or according to a preset search period.

It is emphasized that the brake is released to depressed, which refers to the momentary change in braking action and is not the holding state of the braking action.

Take "brake release to press" as an example:

if the brake release is regarded as low and the brake press-down is regarded as high, the brake is released to press down, which means a rising edge state of jumping from low to high, and not a state of changing from low to high and keeping high.

Similarly, the brake pressing refers to the holding state of the brake action, which is analogous to the state of changing from low level to high level and holding high level.

When the user's intention to start cannot be accurately reflected by a simple one of brake pressing, clutch pressing, or brake and release contract pressing, this embodiment will adopt one of brake release to pressing, clutch release to pressing, brake and release to pressing as contract pressing as a trigger condition for key pre-search, and perform a key pre-search in a state of one of brake release to pressing, clutch release to pressing, brake and release to pressing, or key pre-search according to a preset search period. Therefore, the accuracy of judging the intention of a user to start the vehicle can be improved, and the situation that long-time repeated key pre-search may occur under some extreme conditions, such as the brake detection switch is in a problem, and the vehicle is mistakenly detected to be in a brake-on state without actually pressing the brake, can be avoided only by triggering detection by adopting the rising edge from the release of the brake to the pressing of the brake.

On the basis of the above embodiments, it is not excluded that any state change of the brake depression, the clutch depression, and the brake depression during the brake release or the release is adopted as the trigger condition for the key pre-search.

It should be noted that the preset time period in the present embodiment is to be understood as starting the timer from the search to the legal key, and the set timeout duration is assumed to be 60S (which is only an exemplary setting and does not limit the preset time period to 60S here).

In a specific embodiment, after a legal key is searched, the starting permission identifier is set, the 60S is kept in a state that the brake is continuously stepped, and if a user presses a key starting button in the 60S, the vehicle is directly started, so that the vehicle is quickly started. If the user 60S does not press the one-touch start button, the start permission flag is cleared, and then if the user presses the one-touch start button, the user can start key search authentication, respond, and start the vehicle. Thereby ensuring reliability of vehicle start-up.

Wherein, trigger key preliminary search and trigger key search all include:

triggering LF search;

In a specific embodiment, the key pre-search (key search) process includes: 1) first Search; 2) search Retry.

1)First Search：

Only the LF Search of the car key is started (LF Search refers to driving the low frequency 125KHz antenna of the key to Search for the key).

2)Search Retry：

After the First Search result NG, that is, no legal key is searched, the Search Retry is triggered, and the Search Retry simultaneously starts three searching modes, namely ① bluetooth Search, ② LF Search and ③ TP Search.

It should be noted that, in the Search Retry process, after the TP Search and the bluetooth Search are triggered, the Search is continued until a valid key is searched or a time-out occurs, where the valid key includes a car key and a bluetooth key. And if the LF search is carried out and a legal key is searched, stopping the TP search and the Bluetooth search.

Key pre-search of the present embodiment:

①, ensuring the priority of the automobile key, namely, preferentially using the automobile key to authorize and start under the scene that the automobile key and the Bluetooth key are both present;

② First Search, after one Search failure of LF Search, re-Search can be carried out through Search Retry, thus avoiding misjudgment of failure determination when one Search failure occurs;

③ TP Search is only used in the scene of insufficient key power, so the trigger is only triggered after LF Search of the key First Search fails, and the program and overtime processing of TP Search are avoided in each Search

④ TP Search requires a user to actively press a car key to a one-key starting button, Bluetooth Search requires the user to actively authorize at a mobile phone terminal, and both operations require time, so that the timeout setting of key pre-Search is understood as setting the timeout time of 5min (only an exemplary setting, and the timeout duration is not limited to 5min) in a brake-on state, so that sufficient operation time can be ensured for the user, and sufficient time can also be provided for Bluetooth Search interaction.

In a specific embodiment, the key pre-search can indicate that the user has a vehicle starting intention, but the user does not really operate a one-key starting button to start the vehicle, so that the timeout duration setting at the time cannot be too short; on the other hand, bluetooth searches for two scenarios are initiated:

in a scene ①, firstly, operating authorization on a mobile phone terminal, then stepping on a brake, and pressing a one-key starting button to start a vehicle;

and in a scene ②, a brake is firstly stepped on, the mobile phone terminal is operated according to the prompt for authorization, and a key start button is pressed to start the vehicle.

Because the scenario ② needs to be supported, the timeout duration needs to be set longer to give the user sufficient time to operate, and the timeout duration can be set to 5min by comprehensive consideration.

Please refer to fig. 2 and fig. 3.

With reference to the foregoing embodiment, in a preferred embodiment, the method for searching for a key of an automobile further includes:

and S300, responding to a one-key starting instruction outside the preset time period, triggering key search, and starting the vehicle if a legal key is searched.

It should be noted that outside the preset time period, the key pre-search does not search for a valid key, or the key pre-search searches for a valid key, but the preset time period is over corresponding to the timeout period, or the user presses a key start button immediately or simultaneously when at least one of the brake or the clutch changes state. At this time, a key search is triggered.

It will be appreciated that the key search procedure (as a complement to the key pre-search procedure):

according to the description of the above embodiments, after the key pre-Search process is adopted, most of the vehicle starting operations can be covered, but in some scenarios, it is still necessary to keep the pressing of the key start as Trigger of Trigger timer or Search Trigger as supplement:

in a scenario ①, when the key pre-search process is started and is not finished, a key start button is pressed, and the current key pre-search process is directly switched to a key search process (timeout);

in scenario ②, after the key pre-search process results exceed the validity time, the key start button is pressed to trigger the key search process.

Since the user's intention at this time is already to start the vehicle, it is very clear that a clear response needs to be given to the user. Therefore, the key pre-search process and the key search process differ in that: only the set timeout duration is different, the bluetooth search timeout duration in the key pre-search process is set to 5min, and the key search process timeout duration is set to 1s, which is the time for the bluetooth search normal interaction process.

With reference to the foregoing embodiment, in a preferred embodiment, the method for searching for a key of an automobile further includes, when a valid key is not searched for, the steps of:

With reference to the foregoing embodiments, in a preferred embodiment, the method for searching for a key of an automobile further includes, if no legal key is found, the steps of:

Compared with the prior art, the method for searching the automobile key provided by the invention comprises the following steps: and triggering key pre-search when detecting that at least one of the brake or the clutch has a state change, and responding to a one-key starting instruction to start the vehicle within a preset time period if a legal key is searched. The method adopts the state change of the brake as a trigger event, triggers key pre-search in advance, and avoids misjudgment and various abnormal search conditions by setting reasonable overtime waiting, thereby solving the contradiction between the overtime waiting of key search and quick start, improving the reliability of vehicle start and realizing quick and safe start.

Please refer to fig. 4.

and the pre-search unit 10 is used for triggering key pre-search when detecting that at least one of the brake and the clutch has a state change.

And the starting unit 20 is used for responding to a one-key starting instruction within a preset time period and starting the vehicle if a legal key is searched.

Wherein, at least one of the brake or the clutch changes state, and the state change is as follows: the brake pedal, the clutch pedal, the brake pedal, and the brake pedal are pressed, and any one state change of the brake from releasing to pressing, the clutch from releasing to pressing, and the brake pedal from releasing to pressing.

In a specific embodiment, one of brake pressing, clutch pressing, or brake and brake pressing is adopted as a trigger condition for key pre-search, and key pre-search is performed once or according to a preset search period in a state of one of brake pressing, clutch pressing, or brake and brake pressing.

In a preferred embodiment, when one of simple brake pressing, clutch pressing or brake and brake pressing is not able to accurately reflect the starting intention of the user, one of brake releasing to pressing, clutch releasing to pressing and brake pressing is adopted as a trigger condition of key pre-search, and key pre-search is performed once or according to a preset search period in a state of one of brake releasing to pressing, clutch releasing to pressing, brake and brake pressing. Therefore, the accuracy of judging the intention of the user to start the vehicle can be improved, and the key pre-search which is repeated for a long time can be avoided under some extreme conditions, such as the brake detection switch is in a problem state, but the vehicle is mistakenly detected as a brake stepping state without actually stepping on the brake.

Wherein, trigger key preliminary search and trigger key search all include:

a First Search unit 001 for triggering LF Search;

the Search Retry unit 002 is configured to trigger an LF Search, a TP Search, and a bluetooth Search simultaneously when a valid key is not searched; after TP search and Bluetooth search are triggered, continuous search is carried out until legal keys are searched or overtime is reached, wherein the legal keys comprise automobile keys and Bluetooth keys;

the Search Retry unit 002 is further configured to Search in LF, and stop TP Search and bluetooth Search if a valid key is found.

1)First Search：

The LF Search for starting only the car key only starts the LF Search for the car key (LF Search means to drive the low frequency 125KHz antenna of the key to Search for the key).

2)Search Retry：

Key pre-search of the present embodiment:

Please refer to fig. 5.

With reference to the foregoing embodiment, in a preferred embodiment, the device for searching for a key of an automobile further includes:

and the searching unit 30 is used for responding to a one-key starting instruction outside the preset time period, triggering key searching, and starting the vehicle if a legal key is searched.

With reference to the foregoing embodiments, in a preferred embodiment, when a valid key is not searched, the device for searching a car key outputs a prompt through an instrument panel to prompt a user to attach the car key to a one-key start button and to authorize a bluetooth key.

With reference to the foregoing embodiments, in a preferred embodiment, if no valid key is found, the device for searching for a key of an automobile outputs a prompt through an instrument panel to prompt a user that no valid key is found.

Compared with the prior art, the automobile key searching device provided by the invention triggers key pre-searching when detecting that at least one of the brake or the clutch is changed in state, and responds to a one-key starting instruction to start the automobile within a preset time period if a legal key is searched. The method adopts the state change of the brake as a trigger event, triggers key pre-search in advance, and avoids misjudgment and various abnormal search conditions by setting reasonable overtime waiting, thereby solving the contradiction between the overtime waiting of key search and quick start, improving the reliability of vehicle start and realizing quick and safe start.

Please refer to fig. 6.

An embodiment of the present invention also provides a vehicle, including:

one or more processors;

a storage device coupled to the processor for storing one or more programs;

Fig. 6 is a block diagram of an electronic device. For example, the electronic device may be provided as a vehicle, and the electronic device may include: a processor, a memory. The electronic device may also include one or more of a multimedia component, an input/output (I/O) interface, and a communication component.

The processor is used for controlling the overall operation of the electronic equipment so as to complete all or part of the steps of the vehicle authorization management method. The memory is used to store various types of data to support operation at the electronic device, and the data may include, for example, instructions for any application or method operating on the electronic device, as well as application-related data. The Memory may be implemented by any type of volatile or non-volatile Memory device or combination thereof, such as Static Random Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic Memory, flash Memory, magnetic disk, or optical disk. The multimedia components may include a screen and an audio component. Wherein the screen may be, for example, a touch screen and the audio component is used for outputting and/or inputting audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signal may further be stored in a memory or transmitted through a communication component. The audio assembly also includes at least one speaker for outputting audio signals. The I/O interface provides an interface between the processor and other interface modules, such as a keyboard, mouse, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component is used for carrying out wired or wireless communication between the electronic equipment and other equipment. Wireless communication such as Wi-F i, bluetooth, Near Field Communication (NFC), 2G, 3G or 4G, or a combination of one or more of them, so the corresponding communication component may include a Wi-Fi module, a bluetooth module, and an NFC module.

In an exemplary embodiment, the electronic Device may be implemented by one or more Application Specific 1 integrated circuits (AS 1C), a Digital Signal Processor (DSP), a Digital Signal Processing Device (DSPD), a Programmable Logic Device (PLD), a Field Programmable Gate Array (FPGA), a controller, a microcontroller, a microprocessor, or other electronic components, for performing the above car key searching method.

In another exemplary embodiment, a computer readable storage medium comprising program instructions which, when executed by a processor, implement the steps of the above-described method for transceiving express delivery is also provided. For example, the computer readable storage medium may be the above-mentioned memory including program instructions executable by a processor of an electronic device to perform the above-mentioned car key search method.

It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for searching a key of a car, comprising:

2. The car key search method according to claim 1, further comprising:

3. The car key search method according to claim 2, wherein the trigger key pre-search and the trigger key search each include:

triggering LF search;

4. The car key search method according to claim 3, further comprising, when a valid key is not searched for:

5. The car key searching method according to claim 3, wherein the timeout value of the trigger key pre-search is greater than the timeout value of the trigger key search.

6. The car key search method according to claim 1, wherein the state change of at least one of the brake and the clutch is:

7. The method for searching for a key of a vehicle according to claim 1, wherein if no valid key is found, further comprising:

8. A car key search device, comprising:

9. The car key search device according to claim 8, further comprising:

10. The car key search device according to claim 9, wherein the trigger key pre-search and the trigger key search each include:

a First Search unit for triggering LF Search;

11. The car key search device according to claim 10, wherein the timeout value of the trigger key pre-search is greater than the timeout value of the trigger key search.

12. The car key search device according to claim 8, wherein the state change of at least one of the brake and the clutch is:

13. A vehicle, characterized by comprising:

one or more processors;

a storage device coupled to the processor for storing one or more programs;

when executed by the one or more processors, cause the one or more processors to implement the method of searching for a car key of any one of claims 1 to 7.