CN110065469A - Foot for automobile tail gate kicks induction system - Google Patents
Foot for automobile tail gate kicks induction system Download PDFInfo
- Publication number
- CN110065469A CN110065469A CN201910275114.XA CN201910275114A CN110065469A CN 110065469 A CN110065469 A CN 110065469A CN 201910275114 A CN201910275114 A CN 201910275114A CN 110065469 A CN110065469 A CN 110065469A
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- CN
- China
- Prior art keywords
- circuit
- induction system
- main control
- automobile tail
- tail gate
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/20—Means to switch the anti-theft system on or off
- B60R25/2054—Means to switch the anti-theft system on or off by foot gestures
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- Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Mechanical Engineering (AREA)
- Electronic Switches (AREA)
Abstract
The present invention provides a kind of feet for automobile tail gate to kick induction system, including main control chip, processing module, sensor circuit and power circuit；Sensor circuit is that double capacitive sensing antennas are laid, for incuding kick action；Power circuit includes input power, power supply chip, the first filter circuit, the second filter circuit and protection circuit; input power connects vehicle body power supply; input power is connected by the input terminal of the first filter circuit and power supply chip, and the output end of power supply chip connects main control chip by the second filter circuit；Induction system further includes the ambient compensation circuit connecting with main control chip；Processing module acquires the signal of double capacitive sensing antennas and ambient compensation circuit, and kicks inductive signal according to foot of the signal of ambient compensation circuit to double capacitive sensing antennas and be modified.Foot of the invention kicks induction system, using MCU and incudes chip joined integrally, acquires human body sensing data, and the MCU of realization exports low and high level, controls tail-gate, circuit is simple, low in cost.
Description
Technical field
The present invention relates to new-energy automobile power supply technical field of automatic control, and in particular to a kind of for automobile tail gate
Foot kicks induction system.
Background technique
With the development of the society, the living standard of people is improved constantly, the demand of automobile market is continuously increased, people couple
The entirety of vehicle require it is higher and higher, increasingly pursue it is efficient and convenient and intelligent, at present incude door handle more and more answer
For general-utility car, which greatly facilitates driver and passenger, is not required to taking out key or remote controler into progress in pocket
Locking or solution lock door, it is only necessary to which driver near, simplifies driver and passenger and car door is locked or solved in car door
The operation of lock, enhances convenience.
Current technical field of automotive electronics is maked rapid progress, and more electronic products are more and more humanized, meets people
Pursuit to factors such as comfortable, safety, intelligence.For better user experience, more easily it is conducive to user in both hands and takes full east
Open automobile tail gate when western, present kicking sensor with it is comfortable, conveniently, it is safe the features such as become mainstream.
At present there are many sensing modes of kicking sensor, as ultrasonic sensor, microwave type sensor, infrared type pass
Sensor and capacitance type sensor etc..Since capacitance type sensor has low in cost, quick and easy for installation, misinformation sighing with emotion rate
Low advantage and become mainstream.The design of existing condenser type kicking sensor is mainly with two capacitor straps with the side of parallel relation
Formula is mounted on automobile tail, and two capacitor straps are used to identify the kick action of people.However there are many environment in automobile tail
Factor influences, such as rainwater, snowflake, sand and dust, two capacitor straps do not identify out the influence for whether having environment factor, also
The validity of signal is not can determine that, anti-interference ability is low.
Summary of the invention
The technical problem to be solved in the present invention is that, for technical problem of the existing technology, the present invention provides one
Foot of the kind for automobile tail gate kicks induction system, using MCU and incudes chip joined integrally, acquires human body sensing data, realization
MCU export low and high level, control tail-gate, circuit is simple, low in cost.
In order to solve the above technical problems, technical solution proposed by the present invention are as follows:
A kind of foot for automobile tail gate kicks induction system, including main control chip, processing module, and connects with main control chip
The sensor circuit and power circuit connect；
Sensor circuit, the sensor circuit is that double capacitive sensing antennas are laid, for incuding kick action；
Power circuit includes input power, power supply chip, the first filter circuit, the second filter circuit and protection circuit, institute
Input power connection vehicle body power supply is stated, input power is connected by the input terminal of the first filter circuit and power supply chip, the electricity
The output end of source chip connects main control chip by the second filter circuit；
The induction system further includes ambient compensation circuit, and the ambient compensation circuit is connect with main control chip；
The processing module acquires the signal of double capacitive sensing antennas and ambient compensation circuit, and according to ambient compensation circuit
Signal inductive signal kicked to the foot of double capacitive sensing antennas be modified.
Preferably, the main control chip is capacitance touch MCU.
Preferably, the main control chip is MSP430FR2633MCU.
Preferably, the protection circuit includes reverse-connection preventing circuit and anti-overvoltage circuit.
Preferably, the reverse-connection preventing circuit is made of two diodes in parallel, and the reverse-connection preventing circuit is connected to input
Between power supply and the first filter circuit.
Preferably, the anti-overvoltage circuit is made of at least one resistance.
Preferably, first filter circuit is π shape filter circuit.
Preferably, second filter circuit is multiple filter circuit.
Preferably, the power supply chip is equipped with one for filtering out the diode of backward voltage.
Preferably, the power circuit is additionally provided with reset circuit, the input terminal of the reset circuit and answering for main control chip
Position signal output end connection.
Compared with prior art, induction system is kicked provided by the present invention for the foot of automobile tail gate to have the advantage that
Induction system is kicked provided by the present invention for the foot of automobile tail gate, is increased on the basis of using double capacitive sensing antennas
Ambient compensation circuit is added, ambient compensation circuit is used to detect the signal of environmental change, with this come to for incuding foot kick signal
The first and second capacitive sensing aerial signals compensate, realize under the influence of external environment, to kicking sensor carry out
Interference signal is compensated, actual signal is obtained.
Induction system is kicked provided by the present invention for the foot of automobile tail gate, using MCU and chip joined integrally is incuded, passes through
Capacitive sensing antenna, acquires human body sensing data, and the MCU of realization exports low and high level, controls tail-gate, circuit is simple, at low cost
Lian Youdian.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is circuit diagram of the invention.
Specific embodiment
Detailed description of the preferred embodiments below.It should be understood that described herein specific
Embodiment is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
Figures 1 and 2 show that the present invention kicks a kind of embodiment of induction system, induction system for the foot of automobile tail gate
Including main control chip, processing module, and the sensor circuit and power circuit that are connect with main control chip.
Sensor circuit is that double capacitive sensing antennas are laid, for incuding kick action.Induction system further includes ambient compensation
Circuit, ambient compensation circuit are connect with main control chip.Main control chip is MSP430FR2633MCU, and MSP430FR2633MCU is TI
The extension of 16 super low-power consumption FRAM MCU product mixes can help the designer in different technologies level to build closely
(BSWP) the steady man-machine interface (HMI) of sensor.
Power circuit includes input power, power supply chip, the first filter circuit, the second filter circuit and protects circuit, defeated
Enter power supply connection vehicle body power supply, input power is connected by the input terminal of the first filter circuit and power supply chip, power supply chip
Output end connects main control chip by the second filter circuit.
Protection circuit includes reverse-connection preventing circuit and anti-overvoltage circuit, and reverse-connection preventing circuit is made of two diodes in parallel,
Reverse-connection preventing circuit is connected between input power and the first filter circuit
Input power 12V is input in circuit, and reverse-connection preventing circuit is made of two diodes D4 and D5 in parallel, and D4 is prevented
Voltage it is reversed to when, burn out main control chip.D5 connects with a capacitor C26, in order to which voltage-stabilizing protection is powered to power supply chip.Capacitor
C20, C21, C22, C23, C25, C24 are in parallel, then connect with input power, series reactor L4 between C25, C24, C24, L4,
The capacitors such as C25 are π shape filter circuits.R21, R23 are that bleeder circuit provides stable enable end to power supply chip, and D3 is filtered out reversely
Voltage.C16, C17, C18, C19, D6 are in parallel, then connect with the output end of power supply chip, the feedback foot and resistance of power supply chip
R20, inductor L3 and capacitor C19 series connection, resistance R22 is in parallel with resistance R20, R22 ground connection.The capacitors such as C19, L3, C16 be in order to
More perfect waveform is exported, using multiple filter.R20, R22 constitute volume output voltage regulation circuit.D6 prevents power supply from burning,
Protect main control chip.
Power circuit is additionally provided with reset circuit, and the input terminal of reset circuit and the reset signal output end of main control chip connect
It connects.
Processing module acquires the signal of double capacitive sensing antennas and ambient compensation circuit, and according to the letter of ambient compensation circuit
Number kicking inductive signal to the foot of double capacitive sensing antennas is modified.
Double capacitive sensing antennas form corresponding signal for incuding kick action, calculate foot by processing module and kick
The recognizer of movement, the discrimination of the signal correction foot kick signal of combining environmental compensation circuit C1.Usually when skirt, foot
It can be straight line with calf, so kicking into and kicking out of substantially straight line, ambient compensation circuit is for detecting double capacitors
The signal detection position of the signal of induction antenna side, ambient compensation circuit and double capacitive sensing electric wires is not less than 15cm, and
No more than 30cm, within this range, accuracy is higher, is avoided that erroneous judgement causes the unlatching of tail-gate.
In practical applications, car key has induction type and mechanical, and existing vehicle is much all intelligently opened using a key
Dynamic system.The radiofrequency signal and feedback signal sent by detection induction type car key, available car key and vehicle
The positional distance of tail-gate, if positional distance is kicked in range in setting foot at this time, double capacitive sensing electric wires acquire signal, send
To processing module.When car key be it is mechanical, only car key insertion keyhole in and be in OFF grades or ACC grades when,
Its foot kicks open tail-gate request signal could be effectively.This method can improve vehicle using safe, avoid the occurrence of irrelevant personnel and doing
Kick action is into can open tail-gate.
Double capacitive sensing antenna uninterrupted sampling induction antennas are formed by analog voltage waveform, and carry out analog to digital
The conversion of signal when there is no variations for double capacitive sensing antenna voltages collected, and after continuing 5 minutes (adjustable), is dropped
The main clock of low main control chip closes attached clock, reduces working frequency, disconnects the power supply of accessory circuit, standby to reduce
Power consumption realizes low-power consumption function.(such as 5 minutes, can adjust) there is no incuding day within a certain period of time for double capacitive sensing antennas
When the voltage fluctuation signal that line is formed, auto sleep enters lowest power consumption state, when voltage fluctuation occurs in induction antenna, wakes up
Oneself, into the normal signal tupe spoken of above.
Above-mentioned only presently preferred embodiments of the present invention, is not intended to limit the present invention in any form.Although of the invention
It has been disclosed in a preferred embodiment above, however, it is not intended to limit the invention.Therefore, all without departing from technical solution of the present invention
Content, technical spirit any simple modifications, equivalents, and modifications made to the above embodiment, should all fall according to the present invention
In the range of technical solution of the present invention protection.
Claims (10)
1. a kind of foot for automobile tail gate kicks induction system, which is characterized in that including main control chip, processing module, Yi Jiyu
The sensor circuit and power circuit of main control chip connection；
Sensor circuit, the sensor circuit is that double capacitive sensing antennas are laid, for incuding kick action；
Power circuit includes input power, power supply chip, the first filter circuit, the second filter circuit and protects circuit, described defeated
Enter power supply connection vehicle body power supply, input power is connected by the input terminal of the first filter circuit and power supply chip, the power supply core
The output end of piece connects main control chip by the second filter circuit；
The induction system further includes ambient compensation circuit, and the ambient compensation circuit is connect with main control chip；
The processing module acquires the signal of double capacitive sensing antennas and ambient compensation circuit, and according to the letter of ambient compensation circuit
Number kicking inductive signal to the foot of double capacitive sensing antennas is modified.
2. the foot according to claim 1 for automobile tail gate kicks induction system, which is characterized in that the main control chip is
Capacitance touch MCU.
3. the foot according to claim 2 for automobile tail gate kicks induction system, which is characterized in that the main control chip is
MSP430FR2633MCU。
4. the foot according to claim 2 or 3 for automobile tail gate kicks induction system, which is characterized in that the protection electricity
Road includes reverse-connection preventing circuit and anti-overvoltage circuit.
5. the foot according to claim 4 for automobile tail gate kicks induction system, which is characterized in that the reverse-connection preventing circuit
It is made of two diodes in parallel, the reverse-connection preventing circuit is connected between input power and the first filter circuit.
6. the foot according to claim 5 for automobile tail gate kicks induction system, which is characterized in that the anti-overvoltage circuit
It is made of at least one resistance.
7. the foot according to claim 6 for automobile tail gate kicks induction system, which is characterized in that first filtered electrical
Road is π shape filter circuit.
8. the foot according to claim 6 for automobile tail gate kicks induction system, which is characterized in that second filtered electrical
Road is multiple filter circuit.
9. the foot according to claim 8 for automobile tail gate kicks induction system, which is characterized in that the power supply chip is set
There is a diode for being used to filter out backward voltage.
10. the foot according to claim 1 for automobile tail gate kicks induction system, which is characterized in that the power circuit
It is additionally provided with reset circuit, the input terminal of the reset circuit and the reset signal output end of main control chip connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910275114.XA CN110065469A (en) | 2019-04-08 | 2019-04-08 | Foot for automobile tail gate kicks induction system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910275114.XA CN110065469A (en) | 2019-04-08 | 2019-04-08 | Foot for automobile tail gate kicks induction system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110065469A true CN110065469A (en) | 2019-07-30 |
Family
ID=67367220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910275114.XA Pending CN110065469A (en) | 2019-04-08 | 2019-04-08 | Foot for automobile tail gate kicks induction system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110065469A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114876313A (en) * | 2022-03-01 | 2022-08-09 | 东方久乐汽车电子（上海）股份有限公司 | Induction type automobile tail door and automobile body domain integration system and method thereof |
Citations (7)
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| CN104612530A (en) * | 2014-12-09 | 2015-05-13 | 中山市佐敦音响防盗设备有限公司 | Automobile trunk induction self-opening system |
| US20180170309A1 (en) * | 2016-09-08 | 2018-06-21 | Magna Closures Inc. | User notification of powered system activation during non-contact human activation |
| CN108331484A (en) * | 2018-01-05 | 2018-07-27 | 上海纳恩汽车技术有限公司 | A kind of automobile tail gate kicking sensor system |
| CN207683496U (en) * | 2017-10-10 | 2018-08-03 | 上海埃音斯电子科技有限公司 | Enter the sensor of system based on kicking type automobile |
| CN208233004U (en) * | 2018-04-10 | 2018-12-14 | 广州市胜群电子有限公司 | A kind of shared central control door lock controller circuit of 12V24V |
| CN208420008U (en) * | 2018-06-20 | 2019-01-22 | 梅州慧芯科技有限公司 | A kind of two-wire condenser type electric tail gate inductor |
| CN109281580A (en) * | 2018-09-29 | 2019-01-29 | 武汉佳特轿车零部件有限公司 | Electric tail gate kicking sensor and its control method for automobile tail gate |
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2019
- 2019-04-08 CN CN201910275114.XA patent/CN110065469A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104612530A (en) * | 2014-12-09 | 2015-05-13 | 中山市佐敦音响防盗设备有限公司 | Automobile trunk induction self-opening system |
| US20180170309A1 (en) * | 2016-09-08 | 2018-06-21 | Magna Closures Inc. | User notification of powered system activation during non-contact human activation |
| CN207683496U (en) * | 2017-10-10 | 2018-08-03 | 上海埃音斯电子科技有限公司 | Enter the sensor of system based on kicking type automobile |
| CN108331484A (en) * | 2018-01-05 | 2018-07-27 | 上海纳恩汽车技术有限公司 | A kind of automobile tail gate kicking sensor system |
| CN208233004U (en) * | 2018-04-10 | 2018-12-14 | 广州市胜群电子有限公司 | A kind of shared central control door lock controller circuit of 12V24V |
| CN208420008U (en) * | 2018-06-20 | 2019-01-22 | 梅州慧芯科技有限公司 | A kind of two-wire condenser type electric tail gate inductor |
| CN109281580A (en) * | 2018-09-29 | 2019-01-29 | 武汉佳特轿车零部件有限公司 | Electric tail gate kicking sensor and its control method for automobile tail gate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114876313A (en) * | 2022-03-01 | 2022-08-09 | 东方久乐汽车电子（上海）股份有限公司 | Induction type automobile tail door and automobile body domain integration system and method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190730 |
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| RJ01 | Rejection of invention patent application after publication |