A vehicle control device and a vehicle

Abstract

A vehicle control device and a vehicle, a first original analog signal of a first vehicle-mounted elastic wave generated on a first touch area of the vehicle is subjected to analog-digital conversion processing by a first analog-digital conversion module to obtain a first digital signal, a second digital signal is obtained by a first comparison processing module through comparison processing on the first original analog signal, and the controller realizes control of a first component of the vehicle according to the first digital signal and / or the second digital signal. Two kinds of hardware resources that can process the first original analog signal are provided to provide hardware support for vehicle control based on vehicle-mounted elastic waves in different scenarios.

Description

Technical Field

[0001] This application relates to the field of vehicle control technology, and in particular to a vehicle control device and a vehicle. Background Technology

[0002] With the development of intelligent vehicles, users' demands for touch control in cars are also increasing. Elastic wave technology can be applied to vehicle intelligent perception to realize a smart skin for the vehicle, enabling the vehicle to have tactile feedback, and thus achieving touch recognition and vehicle control.

[0003] However, elastic waves are complex mechanical waves. When a contact or impact event occurs, such as striking an object's surface, a complex mechanical wave consisting of alternating transverse and longitudinal waves is generated and propagates within the object. Therefore, in vehicle sensing applications, how to achieve vehicle control based on this complex mechanical wave has become a pressing technical problem to be solved. Utility Model Content

[0004] Based on this, a vehicle control device and a vehicle are provided to solve the above-mentioned technical problems.

[0005] In a first aspect, a vehicle control device is provided, comprising:

[0006] A first acquisition module, a first analog-to-digital conversion module and a first comparison processing module connected to the first acquisition module, and a controller connected to the first analog-to-digital conversion module and the first comparison processing module respectively;

[0007] The first acquisition module is used to acquire the first original analog signal of the first vehicle elastic wave generated on the first touch area of ​​the vehicle;

[0008] The first analog-to-digital conversion module is used to perform analog-to-digital conversion on the first original analog signal when it receives the first original analog signal to obtain a first digital signal;

[0009] The first comparison processing module is used to compare and process the first original analog signal when it receives the first original analog signal to obtain the second digital signal;

[0010] The controller is used to control a first component of the vehicle based on the first digital signal and / or the second digital signal.

[0011] In one embodiment, the first acquisition module includes a first sensor and a first preprocessing module connected to each other;

[0012] The first sensor is used to convert the elastic wave signal into an electrical signal when it detects the elastic wave signal of the first vehicle elastic wave generated on the first touch area of ​​the vehicle.

[0013] The first preprocessing module is used to preprocess the electrical signal to obtain the first original analog signal.

[0014] In one embodiment, the first preprocessing module includes at least one of a first voltage divider circuit, a first filter circuit, and a first signal amplification circuit.

[0015] In one embodiment, the first comparison processing module includes a first comparison unit and a first PWM unit;

[0016] The first input terminal of the first comparison unit is connected to the output terminal of the first acquisition module, the second input terminal of the first comparison unit is connected to the first reference voltage signal, the output terminal of the first comparison unit is connected to the input terminal of the first PWM unit, and the output terminal of the first PWM unit is connected to the input terminal of the controller.

[0017] In one embodiment, the vehicle control device further includes a second acquisition module, a second analog-to-digital conversion module connected to the second acquisition module, and a second comparison processing module, wherein the second analog-to-digital conversion module and the second comparison processing module are connected to the controller;

[0018] The second acquisition module is used to acquire the second original analog signal of the second vehicle elastic wave generated on the second touch area of ​​the vehicle;

[0019] The second analog-to-digital conversion module is used to perform analog-to-digital conversion on the second original analog signal to obtain a third digital signal;

[0020] The second comparison processing module is used to compare and process the second original analog signal to obtain a fourth digital signal;

[0021] The controller is also configured to control a second component of the vehicle based on the third digital signal and / or the fourth digital signal.

[0022] In one embodiment, the controller is a domain controller.

[0023] In one embodiment, the controller is used to acquire digital signal waveform features corresponding to the second digital signal, and after determining that the digital signal waveform features meet preset digital signal waveform feature conditions, it then reconstructs the analog signal waveform of the first vehicle-mounted elastic wave based on the first digital signal, and extracts the features of the analog signal waveform to obtain analog signal waveform features. When it is determined that the analog signal waveform features meet preset analog signal waveform feature conditions, it controls the first component of the vehicle.

[0024] In one embodiment, a first switch module is provided between the first acquisition module and the first comparison processing module; the controller is used to control a first component of the vehicle according to the first digital signal when the first switch module is opened, and to control the first component according to the second digital signal when the first switch module is closed.

[0025] In one embodiment, a second switch module is provided between the first acquisition module and the first analog-to-digital conversion module; the controller is used to control the first component of the vehicle according to the second digital signal when the second switch module is opened, and to control the first component according to the first digital signal when the second switch module is closed.

[0026] Secondly, this application provides a vehicle including any of the vehicle control devices described above.

[0027] The vehicle control device and vehicle provided in this application can perform analog-to-digital conversion processing on the first original analog signal of the first vehicle elastic wave generated on the first touch area of ​​the vehicle to obtain a first digital signal through the first analog-to-digital conversion module. It can also perform comparative processing on the first original analog signal to obtain a second digital signal through the first comparison processing module. The controller is used to control the first component of the vehicle according to the first digital signal and / or the second digital signal. Two kinds of hardware resources that can process the first original analog signal are provided to provide hardware support for adapting to vehicle control based on vehicle elastic waves in different scenarios.

[0028] Other features and advantages of this application will be set forth in the following description and will be apparent in part from the description or may be learned by practicing the application. The purposes and other advantages of this application may be realized and obtained by means of the structures particularly pointed out in the written description, claims, and drawings. It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not intended to limit this disclosure. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0030] Figure 1 This is a first structural schematic diagram of the vehicle control device in an embodiment of this application;

[0031] Figure 2This is a schematic diagram of the second structure of the vehicle control device in the embodiments of this application;

[0032] Figure 3 This is a schematic diagram of the third structure of the vehicle control device in the embodiments of this application;

[0033] Figure 4 This is a schematic diagram of the fourth structure of the vehicle control device in the embodiments of this application;

[0034] Figure 5 This is a schematic diagram of the fifth structure of the vehicle control device in the embodiments of this application;

[0035] Figure 6 This is a schematic diagram of the vehicle structure in an embodiment of this application. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0037] Please see Figure 1 As shown, this application embodiment provides a vehicle control device 1, including:

[0038] A first acquisition module 11, a first analog-to-digital conversion module 12 and a first comparison processing module 13 connected to the first acquisition module 11, and a controller 14 connected to the first analog-to-digital conversion module 12 and the first comparison processing module 13 respectively.

[0039] The first acquisition module 11 is used to acquire the first original analog signal of the first vehicle elastic wave generated on the first touch area of ​​the vehicle; the first analog-to-digital conversion module 12 is used to perform analog-to-digital conversion processing on the first original analog signal when it is received to obtain a first digital signal; the first comparison processing module 13 is used to compare the first original analog signal when it is received to obtain a second digital signal; and the controller 14 is used to control the first component of the vehicle according to the first digital signal and / or the second digital signal.

[0040] In one embodiment, the controller 14 is used to control a first component of the vehicle based on a first digital signal and a second digital signal. For example, when it is determined based on the first digital signal and the second digital signal that the first vehicle-mounted elastic wave meets the corresponding first preset condition, a control command corresponding to the first preset condition is triggered, and the control of the first component is achieved by running the control command.

[0041] For example, the controller 14 is used to reconstruct the analog signal waveform of the first vehicle-mounted elastic wave based on the first digital signal, extract the features of the analog signal waveform to obtain analog signal waveform features, and obtain the digital signal waveform features corresponding to the second digital signal. When it is determined that the analog signal waveform features satisfy preset analog signal waveform feature conditions, and the digital signal waveform features satisfy preset digital signal waveform feature conditions, the first vehicle-mounted elastic wave is determined to satisfy the corresponding preset conditions. This embodiment combines the features of the analog signal and the digital signal of the first vehicle-mounted elastic wave to determine the validity of the first vehicle-mounted elastic wave. Compared with determining the validity of the vehicle-mounted elastic wave by the features of a single type of signal, the combination of features of more types of signals improves the accuracy of the determination of the validity of the vehicle-mounted elastic wave, thereby improving the accuracy of vehicle control.

[0042] Understandably, since the process of acquiring analog signal waveform features requires high computing resources, in order to improve overall computing efficiency, based on the above example, the controller 14 can first acquire the digital signal waveform features corresponding to the second digital signal. Specifically, it can determine the digital signal waveform of the second digital signal, extract the digital signal waveform features from the digital signal waveform, and after determining that the digital signal waveform features meet the preset digital signal waveform feature conditions, it can then reconstruct the analog signal waveform of the first vehicle elastic wave based on the first digital signal, and extract the features of the analog signal waveform to obtain the analog signal waveform features. When it is determined that the analog signal waveform features meet the preset analog signal waveform feature conditions, the controller controls the first component of the vehicle.

[0043] In this embodiment, the first analog-to-digital conversion module 12 refers to a device that converts an analog signal into a corresponding digital signal through sampling, quantization, and encoding. Considering that the accuracy of the first digital signal obtained by the first analog-to-digital conversion module 12 is often higher than that of the second digital signal obtained by the threshold comparison method (i.e., the comparison method of the first comparison processing module 13), in one embodiment, the first original analog signal can be preferentially processed by the first analog-to-digital conversion module 12 to obtain the first digital signal, and the controller 14 preferentially controls the first component based on the first digital signal.

[0044] For details, please see Figure 2 As shown, a first switch module 15 is provided between the first acquisition module 11 and the first comparison processing module 13; the controller 14 is used to control the first component of the vehicle according to the first digital signal when the first switch module 15 is opened, and to control the first component according to the second digital signal when the first switch module 15 is closed.

[0045] For example, the controller 14 can control the first switch module 15 to open or close based on the state of the first analog-to-digital converter module 12. For instance, it can control the first switch module 15 to open when the first analog-to-digital converter module 12 is functioning normally, and control the first switch module 15 to close when the first analog-to-digital converter module 12 is malfunctioning. For example, when the first analog-to-digital converter module 12 is shared with other functions in the vehicle, if it is determined that the first analog-to-digital converter module 12 is idle, the first switch module 15 is controlled to open; if it is determined that the first analog-to-digital converter module 12 is in a working state, the first switch module 15 is controlled to close.

[0046] When the first switch module 15 is disconnected, the first analog-to-digital converter module 12 receives the first original analog signal and performs analog-to-digital conversion on the first original analog signal to obtain the first digital signal. At this time, the controller 14 controls the first component according to the first digital signal.

[0047] The following is an example illustrating how the controller 14 controls the first component based on the first digital signal.

[0048] As an example, the controller 14 can reconstruct the analog signal waveform of the first vehicle-mounted elastic wave based on the first digital signal, and extract the features of the analog signal waveform to obtain the analog signal waveform features. When it is determined that the analog signal waveform features meet the preset analog signal waveform feature conditions, the controller 14 calls the control instruction corresponding to the preset analog signal waveform feature conditions, and controls the first component by running the control instruction.

[0049] As another example, the controller 14 can obtain the digital signal waveform of the first vehicle-mounted elastic wave based on the first digital signal, and extract the characteristics of the digital signal waveform to obtain the corresponding digital signal waveform characteristics. When it is determined that the digital signal waveform characteristics meet the preset digital signal waveform characteristic conditions, the controller 14 calls the control instruction corresponding to the preset digital signal waveform characteristic conditions, and controls the first component by running the control instruction.

[0050] When the first switch module 15 is closed, the first comparison processing module 13 receives the first original analog signal and compares and processes the first original analog signal to obtain the second digital signal. At this time, the controller 14 controls the first component according to the second digital signal.

[0051] For example, the controller 14 can obtain the digital signal waveform of the first vehicle-mounted elastic wave based on the second digital signal, and extract the features of the digital signal waveform to obtain the corresponding digital signal waveform features. When it is determined that the digital signal waveform features meet the preset digital signal waveform feature conditions, the controller calls the control instruction corresponding to the preset digital signal waveform feature conditions, and controls the first component by running the control instruction.

[0052] In this embodiment, two hardware structures (a first analog-to-digital conversion module and a first comparison processing module) are set up to process the first original analog signal. This ensures that when one hardware structure cannot process the first original analog signal, the other hardware structure can process it, thus guaranteeing that the first original analog signal can receive an effective response.

[0053] On the other hand, considering that the threshold comparison method is more efficient in signal processing than the conversion by the first analog-to-digital converter module 12, in one embodiment, the first original analog signal can be preferentially compared and processed by the first comparison processing module 13 to obtain the second digital signal, and the controller 14 preferentially controls the first component according to the second digital signal.

[0054] For details, please see Figure 3 As shown, a second switch module 16 is provided between the first acquisition module 11 and the first analog-to-digital conversion module 12; the controller 14 is used to control the first component of the vehicle according to the second digital signal when the second switch module 16 is opened, and to control the first component according to the first digital signal when the second switch module 16 is closed.

[0055] For example, the controller 14 can control the second switch module 16 to open or close based on the state of the first comparison processing module 13. For instance, it can control the second switch module 16 to open when the first comparison processing module 13 is determined to be normal, and control the second switch module 16 to close when the first comparison processing module 13 is determined to be abnormal. For example, when the first comparison processing module 13 is multiplexed with other functions in the vehicle, if it is determined that the first comparison processing module 13 is idle, the second switch module 16 is controlled to open; if it is determined that the first comparison processing module 13 is in a working state, the second switch module 16 is controlled to close.

[0056] When the second switch module 16 is disconnected, the first comparison processing module 13 receives the first original analog signal and compares and processes the first original analog signal to obtain the second digital signal. At this time, the controller 14 controls the first component according to the second digital signal.

[0057] When the second switch module 16 is closed, the first analog-to-digital converter module 12 receives the first original analog signal and performs analog-to-digital conversion on the first original analog signal to obtain the first digital signal. At this time, the controller 14 controls the first component according to the first digital signal.

[0058] The method of controlling the first component based on the second digital signal and the method of controlling the first component based on the first digital signal in this embodiment can refer to the content described in the above embodiments, and will not be repeated here.

[0059] In one embodiment, a first switch module 15 is provided between the first acquisition module 11 and the first comparison processing module 13, and a second switch module 16 is provided between the first acquisition module 11 and the first analog-to-digital conversion module 12. The controller 14 can control the on / off state of the first switch module 15 and the second switch module 16, and can control at least one of the first switch module 15 and the second switch module 16 to be closed as needed.

[0060] It should be noted that the first switch module 15 and the second switch module 16 in the embodiments of this application refer to devices that can realize the switching function, such as transistors.

[0061] It should also be noted that the analog signal waveform characteristics in the embodiments of this application refer to the characteristics of the continuous waveform corresponding to the analog signal of the first vehicle-mounted elastic wave, and the digital signal waveform characteristics refer to the characteristics of the discrete waveform corresponding to the digital signal of the first vehicle-mounted elastic wave.

[0062] The analog signal of the first vehicle-mounted elastic wave is a physical quantity that reflects the continuous change of the first vehicle-mounted elastic wave. The digital signal of the first vehicle-mounted elastic wave is a digital representation of a discontinuous change.

[0063] In one embodiment, the first acquisition module 11 includes a first sensor and a first preprocessing module connected together. The output of the first preprocessing module is connected to the input of the first analog-to-digital conversion module 12 and the input of the first comparison processing module 13, respectively.

[0064] The first sensor is used to convert the elastic wave signal into an electrical signal when it detects the elastic wave signal of the first vehicle elastic wave generated on the first touch area of ​​the vehicle; the first preprocessing module is used to preprocess the electrical signal to obtain the first original analog signal.

[0065] The first preprocessing module includes at least one of a first voltage divider circuit, a first filter circuit, and a first signal amplification circuit.

[0066] For example, the first preprocessing module includes a first voltage divider circuit, a first filter circuit, and a first signal amplification circuit connected in sequence.

[0067] In one embodiment, the first comparison processing module 13 includes a first comparison unit 131. The first input terminal of the first comparison unit 131 is connected to the output terminal of the first acquisition module 11, the second input terminal of the first comparison unit 131 is connected to the first reference voltage signal, and the output terminal of the first comparison unit 131 can be directly connected to the input terminal of the controller 14.

[0068] In one embodiment, to improve the accuracy of the obtained second digital signal, please refer to [link to relevant documentation]. Figure 4As shown, the first comparison processing module 13 may include a first comparison unit 131 and a first PWM (Pulse Width Modulation) unit 132 connected in sequence. The first input terminal of the first comparison unit 131 is connected to the output terminal of the first acquisition module 11, the second input terminal of the first comparison unit 131 is connected to the first reference voltage signal, the output terminal of the first comparison unit 131 is connected to the input terminal of the first PWM unit 132, and the output terminal of the first PWM unit 132 is connected to the input terminal of the controller 14.

[0069] In this embodiment, the duty cycle of the PWM signal of the first PWM unit 132 is adjusted according to the level of the first original analog signal, so that the change of the first original analog signal is converted into the change of the duty cycle of the PWM signal, thereby improving the accuracy of the final obtained second digital signal.

[0070] In one embodiment, please refer to Figure 5 As shown, the vehicle control device 1 also includes a second acquisition module 17, a second analog-to-digital conversion module 18 connected to the second acquisition module 17, and a second comparison processing module 19. The second analog-to-digital conversion module 18 and the second comparison processing module 19 are connected to the controller 14.

[0071] The second acquisition module 17 is used to acquire the second original analog signal of the second vehicle elastic wave generated on the second touch area of ​​the vehicle; the second analog-to-digital conversion module 18 is used to perform analog-to-digital conversion processing on the second original analog signal to obtain a third digital signal; the second comparison processing module 19 is used to compare and process the second original analog signal to obtain a fourth digital signal; the controller 14 is also used to control the second component of the vehicle according to the third digital signal and / or the fourth digital signal.

[0072] It is understood that the first analog-to-digital conversion module 12, the first comparison processing module 13, the second analog-to-digital conversion module 18, and the second comparison processing module 19 in this embodiment can be connected to different input pins of the controller 14, so that the controller 14 can control different components of the vehicle based on the vehicle elastic waves generated on different touch areas.

[0073] Similar to the first acquisition module 11, the second acquisition module 17 may include a second sensor and a second preprocessing module connected to each other; the second sensor is used to convert the elastic wave signal of the second vehicle elastic wave generated on the second touch area of ​​the vehicle into an electrical signal when it detects the elastic wave signal, and the second preprocessing module is used to preprocess the electrical signal to obtain a second original analog signal.

[0074] The second preprocessing module includes at least one of a second voltage divider circuit, a second filter circuit, and a second signal amplification circuit.

[0075] Similar to the first comparison processing module 13, the second comparison processing module 19 may include a second comparison unit and a second PWM unit; the first input terminal of the second comparison unit is connected to the output terminal of the second acquisition module 17, the second input terminal of the second comparison unit is connected to the second reference voltage signal, the output terminal of the second comparison unit is connected to the input terminal of the second PWM unit, and the output terminal of the second PWM unit is connected to the input terminal of the controller 14.

[0076] Similarly, in one embodiment, a third switch module may be provided between the second acquisition module 17 and the second comparison processing module 19; the controller 14 is used to control the second component of the vehicle according to the third digital signal when the third switch module is opened, and to control the second component according to the fourth digital signal when the third switch module is closed.

[0077] Similarly, in one embodiment, a fourth switch module may be provided between the second acquisition module 17 and the second analog-to-digital conversion module 18; the controller 14 is used to control the second component of the vehicle according to the fourth digital signal when the fourth switch module is controlled to be disconnected, and to control the second component according to the third digital signal when the fourth switch module is controlled to be closed.

[0078] The method of controlling the second component of the vehicle based on the third digital signal and / or the fourth digital signal is the same as the method of controlling the first component of the vehicle based on the first digital signal and / or the second digital signal described above, and will not be repeated here.

[0079] In this embodiment, the controller 14 can be a vehicle controller. Of course, to improve the targeting of function control, preferably, the controller is a domain controller.

[0080] Finally, it should be noted that the analog signal waveforms in the embodiments of this application include time-domain waveforms and / or frequency-domain waveforms. Correspondingly, the analog signal waveform features include time-domain waveform features and / or frequency-domain waveform features. The frequency-domain waveform in the embodiments of this application can be obtained by performing a frequency-domain transformation on the time-domain waveform. For example, after reconstructing the time-domain waveform of the first vehicle-mounted elastic wave from the first digital signal, a frequency-domain transformation can be performed on the time-domain waveform, such as performing Fourier transform analysis, thereby obtaining the frequency-domain waveform.

[0081] When the analog signal waveform features include time-domain waveform features, the time-domain waveform features may include at least one of the following: a first shape feature, a first amplitude feature, a first waveform duration feature, and a time-domain waveform energy feature.

[0082] The first shape feature of the time-domain waveform reflects the shape of the time-domain waveform. It can be used to determine whether the first shape feature of the time-domain waveform meets the corresponding preset requirements, thereby determining whether the characteristics of the analog signal waveform meet the preset analog signal waveform characteristic conditions.

[0083] The first amplitude characteristic of a time-domain waveform can include at least one of the following: the amplitude of the time-domain waveform, the variation of the amplitude of the time-domain waveform, and the stability of the amplitude of the time-domain waveform. The sharper the object and the faster it falls, the larger the amplitude of the elastic wave generated when it hits the vehicle. Therefore, the analog signal waveform characteristics can be judged by whether the maximum amplitude of the time-domain waveform exceeds a preset amplitude to determine whether the characteristics meet the preset analog signal waveform characteristic conditions. The stability of the amplitude of the time-domain waveform can be measured by the variance of the entire waveform. That is, the amplitude of the time-domain waveform at each time point is compared with the center value, and the degree of deviation is calculated. The center value can be the mean amplitude of the time-domain waveform.

[0084] The first waveform duration feature may include the waveform duration exceeding the target amplitude and / or the duration of the entire time-domain waveform.

[0085] The energy characteristics of a time-domain waveform can be obtained by integrating the time-domain waveform. The integral value is used as the energy characteristics of the time-domain waveform. The analog signal waveform characteristics can be judged by whether the integral value is within the preset integration range to determine whether the analog signal waveform characteristics meet the preset analog signal waveform characteristic conditions.

[0086] When the waveform features of an analog signal include frequency domain waveform features, the frequency domain waveform features may include at least one of the following: a second shape feature, a second amplitude feature, a second waveform duration feature, a frequency domain waveform energy feature, and a frequency domain fundamental frequency signal feature.

[0087] The second shape feature of the frequency domain waveform reflects the shape of the frequency domain waveform. It can be used to determine whether the second shape feature of the frequency domain waveform meets the corresponding preset requirements, such as whether it decreases abruptly or attenuates slowly. This can be used to determine whether the characteristics of the analog signal waveform meet the preset characteristics of the analog signal waveform.

[0088] The second amplitude characteristic of the frequency domain waveform may include at least one of the following: the amplitude of the frequency domain waveform corresponding to the target frequency domain range, the variation of the frequency domain waveform amplitude, and the stability of the frequency domain waveform amplitude. The target frequency domain range may be the frequency domain range corresponding to a region of concentrated frequency energy. Whether the analog signal waveform characteristics meet the preset analog signal waveform characteristic conditions can be determined by judging whether the amplitude of the frequency domain waveform corresponding to the target frequency domain range meets preset requirements.

[0089] The second waveform duration characteristic of the frequency domain waveform may include the ratio between the duration corresponding to the frequency domain energy concentration region and the duration corresponding to the entire frequency domain waveform.

[0090] Frequency domain waveform energy characteristics may include at least one of the waveform energy value corresponding to the highest frequency, the waveform energy value corresponding to the lowest frequency, and the difference between the waveform energy value corresponding to the highest frequency and the waveform energy value corresponding to the lowest frequency. For example, whether the waveform characteristics of the analog signal meet the preset analog signal waveform characteristic conditions can be determined by judging whether the waveform energy values ​​corresponding to the highest frequency and the waveform energy values ​​corresponding to the lowest frequency meet preset requirements.

[0091] The characteristics of a frequency domain fundamental frequency signal may include at least one of the following: the energy value, shape, and distribution of the frequency domain fundamental frequency signal.

[0092] The digital signal waveform features in the embodiments of this application may include at least one of the following: third waveform duration feature, pulse time interval feature, pulse width feature, and digital signal energy feature.

[0093] The third waveform duration characteristic of a digital signal waveform may include at least one of the following: the duration of the entire digital signal waveform, the pulse width, and the continuous pulse time interval. For example, it can be determined whether the continuous pulse time interval meets a preset requirement, and / or whether the pulse width meets a preset requirement, thereby determining whether the digital signal waveform characteristics meet preset digital signal waveform characteristic conditions.

[0094] The energy characteristics of a digital signal can include the number of pulses greater than a preset pulse width. This number of pulses measures the total energy of the onboard elastic waves formed on the vehicle. It can be determined whether the number of pulses greater than the preset pulse width meets a preset requirement, thereby determining whether the digital signal waveform characteristics meet the preset digital signal waveform characteristic conditions.

[0095] It is understood that the preset analog signal waveform characteristic conditions and preset digital signal waveform characteristic conditions mentioned in the above embodiments can be flexibly set by the developers.

[0096] In one embodiment, the aforementioned first sensor is positioned at a location where the first vehicle-mounted elastic wave generated on the first touch area can be effectively detected, and the aforementioned second sensor is positioned at a location where the second vehicle-mounted elastic wave generated on the second touch area can be effectively detected.

[0097] For example, the first sensor can be placed near the left door to detect the elastic wave signal of the first vehicle elastic wave generated on the left door, and convert the elastic wave signal into an electrical signal. The first preprocessing module preprocesses the electrical signal to obtain the first original analog signal.

[0098] The second sensor can be placed near the right door to detect the elastic wave signal of the second vehicle-mounted elastic wave generated on the right door, and convert the elastic wave signal into an electrical signal. The second preprocessing module preprocesses the electrical signal to obtain the second original analog signal.

[0099] The first analog-to-digital conversion module 12 and the first comparison processing module 13 obtain the first digital signal and the second digital signal respectively based on the first original analog signal. The controller 14 can control the left door according to the first digital signal and the second digital signal, such as controlling the left door to open or close.

[0100] Similarly, the second analog-to-digital conversion module 18 and the second comparison processing module 19 obtain the third digital signal and the fourth digital signal respectively based on the second original analog signal, and the controller 14 can control the right door according to the third digital signal and the fourth digital signal.

[0101] In one embodiment, please refer to Figure 6 As shown, a vehicle is provided, including the vehicle control device 1 mentioned in any of the above embodiments.

[0102] It should be understood that, for the sake of brevity, some of the content described in the device embodiments will not be repeated in the description of the vehicle embodiments.

[0103] Those skilled in the art will understand that the structures shown in the figures of the embodiments of this application are merely block diagrams of some structures related to the solution of this application, and do not constitute a limitation on the application of the solution of this application. Specific devices or vehicles may include more or fewer components than those shown in the figures, or combine certain components, or have different component arrangements.

[0104] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the document does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0105] As illustrated herein, unless the context clearly indicates otherwise, the words “a,” “an,” “an,” and / or “the” do not specifically refer to the singular and may also include the plural. Generally speaking, the terms “comprising” and “including” only indicate the inclusion of explicitly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements.

[0106] The definitions used herein, such as the terms “having,” “may have,” “comprising,” or “may include,” indicate the presence of the corresponding function, operation, element, etc., and do not limit the presence of one or more other functions, operations, elements, etc. Furthermore, it should be understood that the terms “comprising” or “having” as used herein mean the presence of the features, figures, steps, operations, elements, components, or combinations thereof described in the specification, without excluding the presence or addition of one or more other features, figures, steps, operations, elements, components, or combinations thereof.

[0107] The prefixes such as "first" and "second" used in this application embodiment are merely for distinguishing different descriptive objects and do not limit the position, order, priority, quantity, or content of the described objects. The use of ordinal numbers and other prefixes used to distinguish descriptive objects in this application embodiment does not constitute a limitation on the described objects. The description of the described objects is given in the claims or the context of the embodiments, and should not constitute unnecessary restrictions due to the use of such prefixes. Furthermore, in the description of this embodiment, unless otherwise stated, "multiple" means two or more.

[0108] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0109] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A vehicle control device, characterized in that, include: A first acquisition module, a first analog-to-digital conversion module and a first comparison processing module connected to the first acquisition module, and a controller connected to the first analog-to-digital conversion module and the first comparison processing module respectively; The first acquisition module is used to acquire the first original analog signal of the first vehicle elastic wave generated on the first touch area of ​​the vehicle; The first analog-to-digital conversion module is used to perform analog-to-digital conversion on the first original analog signal when it receives the first original analog signal to obtain a first digital signal; The first comparison processing module is used to compare and process the first original analog signal when it receives the first original analog signal to obtain the second digital signal; The controller is used to control a first component of the vehicle based on the first digital signal and / or the second digital signal.

2. The vehicle control device as described in claim 1, characterized in that, The first acquisition module includes a first sensor and a first preprocessing module connected to each other; The first sensor is used to convert the elastic wave signal into an electrical signal when it detects the elastic wave signal of the first vehicle elastic wave generated on the first touch area of ​​the vehicle. The first preprocessing module is used to preprocess the electrical signal to obtain the first original analog signal.

3. The vehicle control device as described in claim 2, characterized in that, The first preprocessing module includes at least one of a first voltage divider circuit, a first filter circuit, and a first signal amplification circuit.

4. The vehicle control device as described in claim 1, characterized in that, The first comparison processing module includes a first comparison unit and a first PWM unit; The first input terminal of the first comparison unit is connected to the output terminal of the first acquisition module, the second input terminal of the first comparison unit is connected to the first reference voltage signal, the output terminal of the first comparison unit is connected to the input terminal of the first PWM unit, and the output terminal of the first PWM unit is connected to the input terminal of the controller.

5. The vehicle control device as described in claim 1, characterized in that, The vehicle control device further includes a second acquisition module, a second analog-to-digital conversion module connected to the second acquisition module, and a second comparison processing module, wherein the second analog-to-digital conversion module and the second comparison processing module are connected to the controller. The second acquisition module is used to acquire the second original analog signal of the second vehicle elastic wave generated on the second touch area of ​​the vehicle; The second analog-to-digital conversion module is used to perform analog-to-digital conversion on the second original analog signal to obtain a third digital signal; The second comparison processing module is used to compare and process the second original analog signal to obtain a fourth digital signal; The controller is also configured to control a second component of the vehicle based on the third digital signal and / or the fourth digital signal.

6. The vehicle control device as described in claim 5, characterized in that, The controller is a domain controller.

7. The vehicle control device according to any one of claims 1-6, characterized in that, The controller is used to acquire the digital signal waveform characteristics corresponding to the second digital signal. After determining that the digital signal waveform characteristics meet the preset digital signal waveform characteristic conditions, it then reconstructs the analog signal waveform of the first vehicle elastic wave based on the first digital signal, and extracts the characteristics of the analog signal waveform to obtain the analog signal waveform characteristics. When it is determined that the analog signal waveform characteristics meet the preset analog signal waveform characteristic conditions, it controls the first component of the vehicle.

8. The vehicle control device according to any one of claims 1-6, characterized in that, A first switch module is provided between the first acquisition module and the first comparison processing module; the controller is used to control the first component of the vehicle according to the first digital signal when the first switch module is opened, and to control the first component according to the second digital signal when the first switch module is closed.

9. The vehicle control device according to any one of claims 1-6, characterized in that, A second switch module is provided between the first acquisition module and the first analog-to-digital conversion module; the controller is used to control the first component of the vehicle according to the second digital signal when the second switch module is opened, and to control the first component according to the first digital signal when the second switch module is closed.

10. A vehicle, characterized in that, Includes the vehicle control device as described in any one of claims 1-9.

Images