CN219778251U - PKE host device of electric vehicle - Google Patents
PKE host device of electric vehicle Download PDFInfo
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- CN219778251U CN219778251U CN202320086600.9U CN202320086600U CN219778251U CN 219778251 U CN219778251 U CN 219778251U CN 202320086600 U CN202320086600 U CN 202320086600U CN 219778251 U CN219778251 U CN 219778251U
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- 238000012545 processing Methods 0.000 claims abstract description 18
- 230000003321 amplification Effects 0.000 claims abstract description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 3
- 239000003990 capacitor Substances 0.000 claims description 36
- 230000005669 field effect Effects 0.000 claims description 12
- 238000001914 filtration Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 238000010521 absorption reaction Methods 0.000 description 1
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Abstract
The utility model discloses a PKE host device, which belongs to the technical field of electric vehicles, and in particular relates to an electric vehicle PKE host device, comprising: the low-frequency transmitting module is used for transmitting a low-frequency signal to the PKE key; the high-frequency receiving module is used for receiving signals fed back by the PKE key; the control module is used for making control according to the PKE key feedback signal and sending out an instruction signal to the PKE key; and the processing module is used for performing signal processing on the received signal. The processing module consists of a filter circuit, an amplifying circuit and a gain circuit; the amplifying circuit is connected between the filtering circuit and the gain circuit, and the processing module is used for filtering and amplifying the input signal, so that clutter in the signal is filtered, fixed value amplification is carried out, gain compensation is carried out on the amplified signal, the signal strength is stabilized, the stability of the signal is ensured, and accurate ranging is realized.
Description
Technical Field
The utility model discloses a PKE host device, belongs to the technical field of electric vehicles, and particularly relates to an electric vehicle PKE host device.
Background
With the continuous development of electric vehicle technology, the conventional wireless access control system cannot meet the demands of wide users. The hands-free passive keyless entry system PKE (Passive Keyless Entry) is rapidly becoming the mainstay of remote keyless entry applications and is a popular choice for electric vehicles. Under the condition that the electric vehicle is equipped with the PKE intelligent key system, the electric vehicle can be automatically opened and powered on only by a vehicle owner approaching the vehicle or touching the vehicle.
However, in the prior art, when the PKE host of the electric vehicle detects the corresponding PKE key, the distance calculation of the position is required, and whether the user needs to use the vehicle is judged according to the distance, but in the prior art, the distance measurement can only be performed approximately, and accurate distance measurement cannot be performed, and the reason is mainly that the strength of the measurement propagation path is rapidly attenuated along with the increase of the propagation distance due to the influence of factors such as diffusion, absorption and scattering, so that the accuracy is insufficient.
Disclosure of Invention
The utility model aims to: there is provided an electric vehicle PKE host apparatus that solves the above-mentioned problems.
The technical scheme is as follows: an electric vehicle PKE host device, comprising: the low-frequency transmitting module is used for transmitting a low-frequency signal to the PKE key;
the high-frequency receiving module is used for receiving signals fed back by the PKE key;
the control module is used for making control according to the PKE key feedback signal and sending out an instruction signal to the PKE key;
and the processing module is used for performing signal processing on the received signal.
In a further embodiment, the processing module is composed of a filter circuit, an amplifying circuit and a gain circuit;
wherein the amplifying circuit is connected between the filter circuit and the gain circuit.
In a further embodiment, the filter circuit comprises: a resistor R1, a capacitor C1 and a capacitor C2;
one end of the resistor R1 is connected with one end of the capacitor C1 and inputs signals, the other end of the resistor R1 is connected with one end of the capacitor C2 and outputs signals, and the other end of the capacitor C1 is connected with the other end of the capacitor C2 and grounded.
In a further embodiment, the amplifying circuit comprises: resistor R2, resistor R4, capacitor C3, capacitor C4, resistor R5, resistor R3, field effect transistor Q1, capacitor C3, capacitor C5;
the one end input signal of electric capacity C3, the other end simultaneously with resistance R2's one end, resistance R4's one end with field effect transistor Q1's grid is connected, field effect transistor Q1's source simultaneously with resistance R2's the other end, electric capacity C4's one end is connected and input voltage, electric capacity C4's the other end ground connection, field effect transistor Q1's drain electrode simultaneously with resistance R5's one end and electric capacity C5's one end is connected, resistance R5's the other end simultaneously with resistance R4's the other end with resistance R3's one end is connected and ground connection, electric capacity C5's the other end with resistance R3's the other end is connected and output signal.
In a further embodiment, the gain circuit comprises: resistor R6, resistor R7, resistor R8, resistor R9, resistor R10, resistor R11, resistor R12, resistor R13, resistor R14, resistor R15, potentiometer RV1, transistor Q2, transistor Q3, amplifier U1, amplifier U2, diode D1, resistor R10, capacitor C6, and transistor Q4;
one end of the resistor R6 is connected with one end of the resistor R7 and inputs signals, the in-phase input end of the amplifier U1 is simultaneously connected with one end of the resistor R10 and the other end of the resistor R9, one end of the resistor R7 is connected with the drain electrode of the transistor Q2, the source electrode and the grid electrode of the transistor Q2 are grounded, the inverting input end of the amplifier U1 is simultaneously connected with one end of the resistor R7, one end of the resistor R8, one end of the resistor R9 and the drain electrode of the resistor Q3, the output end of the amplifier U1 is connected with the other end of the resistor R8 and outputs signals, the source electrode and the grid electrode of the transistor Q3 are simultaneously connected with one end of the resistor R10 and the other end of the resistor R9, one end of the base electrode of the transistor Q4 is simultaneously connected with the other end of the resistor R11 and one end of the resistor R12, the collector electrode of the transistor Q4 is simultaneously connected with one end of the resistor R13, one end of the capacitor C6 and one end of the resistor R14, the other end of the resistor R13 is simultaneously connected with the voltage of the resistor R1, the other end of the diode R2 is simultaneously connected with the input end of the resistor R1 and the other end of the resistor R2, the input end of the resistor R1 is simultaneously connected with the input end of the resistor R2 and the other end of the resistor R2 is connected with the input end of the resistor R2.
The beneficial effects are that: the utility model discloses a PKE host device, which belongs to the technical field of electric vehicles, and in particular relates to an electric vehicle PKE host device, comprising: the low-frequency transmitting module is used for transmitting a low-frequency signal to the PKE key; the high-frequency receiving module is used for receiving signals fed back by the PKE key; the control module is used for making control according to the PKE key feedback signal and sending out an instruction signal to the PKE key; and the processing module is used for performing signal processing on the received signal. The processing module consists of a filter circuit, an amplifying circuit and a gain circuit; the amplifying circuit is connected between the filtering circuit and the gain circuit, and the processing module is used for filtering and amplifying the input signal, so that clutter in the signal is filtered, fixed value amplification is carried out, gain compensation is carried out on the amplified signal, the signal strength is stabilized, the stability of the signal is ensured, and accurate ranging is realized.
Drawings
Fig. 1 is a schematic diagram of the operation of the present utility model.
Fig. 2 is a schematic diagram of a filter circuit and an amplifying circuit according to the present utility model.
Fig. 3 is a schematic diagram of a gain circuit of the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.
An electric vehicle PKE host device, comprising: .
The low-frequency transmitting module is used for transmitting a low-frequency signal to the PKE key;
the high-frequency receiving module is used for receiving signals fed back by the PKE key;
the control module is used for making control according to the PKE key feedback signal and sending out an instruction signal to the PKE key;
and the processing module is used for performing signal processing on the received signal.
In one embodiment, as shown in fig. 1-2, the processing module is composed of a filtering circuit, an amplifying circuit and a gain circuit;
wherein the amplifying circuit is connected between the filter circuit and the gain circuit.
In one embodiment, as shown in fig. 2, the filtering circuit includes: a resistor R1, a capacitor C1 and a capacitor C2;
one end of the resistor R1 is connected with one end of the capacitor C1 and inputs signals, the other end of the resistor R1 is connected with one end of the capacitor C2 and outputs signals, and the other end of the capacitor C1 is connected with the other end of the capacitor C2 and grounded.
In one embodiment, as shown in fig. 2, the amplifying circuit includes: resistor R2, resistor R4, capacitor C3, capacitor C4, resistor R5, resistor R3, field effect transistor Q1, capacitor C3, capacitor C5;
the one end input signal of electric capacity C3, the other end simultaneously with resistance R2's one end, resistance R4's one end with field effect transistor Q1's grid is connected, field effect transistor Q1's source simultaneously with resistance R2's the other end, electric capacity C4's one end is connected and input voltage, electric capacity C4's the other end ground connection, field effect transistor Q1's drain electrode simultaneously with resistance R5's one end and electric capacity C5's one end is connected, resistance R5's the other end simultaneously with resistance R4's the other end with resistance R3's one end is connected and ground connection, electric capacity C5's the other end with resistance R3's the other end is connected and output signal.
In one embodiment, as shown in fig. 3, the gain circuit includes: resistor R6, resistor R7, resistor R8, resistor R9, resistor R10, resistor R11, resistor R12, resistor R13, resistor R14, resistor R15, potentiometer RV1, transistor Q2, transistor Q3, amplifier U1, amplifier U2, diode D1, resistor R10, capacitor C6, and transistor Q4;
one end of the resistor R6 is connected with one end of the resistor R7 and inputs signals, the in-phase input end of the amplifier U1 is simultaneously connected with one end of the resistor R10 and the other end of the resistor R9, one end of the resistor R7 is connected with the drain electrode of the transistor Q2, the source electrode and the grid electrode of the transistor Q2 are grounded, the inverting input end of the amplifier U1 is simultaneously connected with one end of the resistor R7, one end of the resistor R8, one end of the resistor R9 and the drain electrode of the resistor Q3, the output end of the amplifier U1 is connected with the other end of the resistor R8 and outputs signals, the source electrode and the grid electrode of the transistor Q3 are simultaneously connected with one end of the resistor R10 and the other end of the resistor R9, one end of the base electrode of the transistor Q4 is simultaneously connected with the other end of the resistor R11 and one end of the resistor R12, the collector electrode of the transistor Q4 is simultaneously connected with one end of the resistor R13, one end of the capacitor C6 and one end of the resistor R14, the other end of the resistor R13 is simultaneously connected with the voltage of the resistor R1, the other end of the diode R2 is simultaneously connected with the input end of the resistor R1 and the other end of the resistor R2, the input end of the resistor R1 is simultaneously connected with the input end of the resistor R2 and the other end of the resistor R2 is connected with the input end of the resistor R2.
Working principle: when the utility model works, the low-frequency transmitting module in the host transmits a low-frequency signal, so that when the key is in the transmitting range, the low-frequency signal is received by the low-frequency receiving module in the key and transmitted by the high-frequency transmitting module, and meanwhile, the high-frequency receiving module in the host receives the signal and the signal is processed by the processing module.
The high-frequency component in the signal is filtered through the filter circuit, the system noise width is compressed, the system noise is limited, the detection accuracy is enhanced, the signal is amplified through the input amplifying circuit, the LC filter is arranged in the amplifying circuit, the interference formed by spike pulse current can be effectively blocked, the deviation problem of the spike pulse current in the laser photoelectric signal detection process is effectively solved, the signal is input into the gain circuit, the gain circuit performs signal gain compensation, the signal strength is stabilized, the stability of the signal is guaranteed, and the accurate ranging is realized. It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.
Claims (4)
1. An electric vehicle PKE host device, the host device comprising:
the low-frequency transmitting module is used for transmitting a low-frequency signal to the PKE key;
the high-frequency receiving module is used for receiving signals fed back by the PKE key;
the control module is used for making control according to the PKE key feedback signal and sending out an instruction signal to the PKE key;
the processing module is used for performing signal processing on the received signal;
the processing module consists of a filter circuit, an amplifying circuit and a gain circuit;
wherein the amplifying circuit is connected between the filter circuit and the gain circuit.
2. The electric vehicle PKE host device of claim 1, wherein the filter circuit comprises: a resistor R1, a capacitor C1 and a capacitor C2;
one end of the resistor R1 is connected with one end of the capacitor C1 and inputs signals, the other end of the resistor R1 is connected with one end of the capacitor C2 and outputs signals, and the other end of the capacitor C1 is connected with the other end of the capacitor C2 and grounded.
3. The electric vehicle PKE host device of claim 1, wherein the amplification circuit comprises: resistor R2, resistor R4, capacitor C3, capacitor C4, resistor R5, resistor R3, field effect transistor Q1, capacitor C3, capacitor C5;
the one end input signal of electric capacity C3, the other end simultaneously with resistance R2's one end, resistance R4's one end with field effect transistor Q1's grid is connected, field effect transistor Q1's source simultaneously with resistance R2's the other end, electric capacity C4's one end is connected and input voltage, electric capacity C4's the other end ground connection, field effect transistor Q1's drain electrode simultaneously with resistance R5's one end and electric capacity C5's one end is connected, resistance R5's the other end simultaneously with resistance R4's the other end with resistance R3's one end is connected and ground connection, electric capacity C5's the other end with resistance R3's the other end is connected and output signal.
4. The electric vehicle PKE host device of claim 1, wherein the gain circuit comprises: resistor R6, resistor R7, resistor R8, resistor R9, resistor R10, resistor R11, resistor R12, resistor R13, resistor R14, resistor R15, potentiometer RV1, transistor Q2, transistor Q3, amplifier U1, amplifier U2, diode D1, resistor R10, capacitor C6, and transistor Q4;
one end of the resistor R6 is connected with one end of the resistor R7 and inputs signals, the in-phase input end of the amplifier U1 is simultaneously connected with one end of the resistor R10 and the other end of the resistor R9, one end of the resistor R7 is connected with the drain electrode of the transistor Q2, the source electrode and the grid electrode of the transistor Q2 are grounded, the inverting input end of the amplifier U1 is simultaneously connected with one end of the resistor R7, one end of the resistor R8, one end of the resistor R9 and the drain electrode of the resistor Q3, the output end of the amplifier U1 is connected with the other end of the resistor R8 and outputs signals, the source electrode and the grid electrode of the transistor Q3 are simultaneously connected with one end of the resistor R10 and the other end of the resistor R9, one end of the base electrode of the transistor Q4 is simultaneously connected with the other end of the resistor R11 and one end of the resistor R12, the collector electrode of the transistor Q4 is simultaneously connected with one end of the resistor R13, one end of the capacitor C6 and one end of the resistor R14, the other end of the resistor R13 is simultaneously connected with the voltage of the resistor R1, the other end of the diode R2 is simultaneously connected with the input end of the resistor R1 and the other end of the resistor R2, the input end of the resistor R1 is simultaneously connected with the input end of the resistor R2 and the other end of the resistor R2 is connected with the input end of the resistor R2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320086600.9U CN219778251U (en) | 2023-01-30 | 2023-01-30 | PKE host device of electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320086600.9U CN219778251U (en) | 2023-01-30 | 2023-01-30 | PKE host device of electric vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN219778251U true CN219778251U (en) | 2023-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320086600.9U Active CN219778251U (en) | 2023-01-30 | 2023-01-30 | PKE host device of electric vehicle |
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|---|---|
| CN (1) | CN219778251U (en) |
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2023
- 2023-01-30 CN CN202320086600.9U patent/CN219778251U/en active Active
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