CN107489764B - A kind of electronics lever circuit of auto-manual selector - Google Patents
A kind of electronics lever circuit of auto-manual selector Download PDFInfo
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- CN107489764B CN107489764B CN201710590356.9A CN201710590356A CN107489764B CN 107489764 B CN107489764 B CN 107489764B CN 201710590356 A CN201710590356 A CN 201710590356A CN 107489764 B CN107489764 B CN 107489764B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
- F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
- F16H61/0204—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
The invention discloses a kind of electronics lever circuits of auto-manual selector, including Vehicular direct-current power feedback unit, P grades of Acquisition Circuit units, locking control signal Acquisition Circuit unit, gear indicating circuit unit, processor unit, ESD protection circuit unit, LIN transceiver unit, LIN signal filter unit and power supply unit；Five output ends of processor unit through ESD protection circuit unit respectively with P grades of drive circuit units, R grades of drive circuit units, N grades of drive circuit units, D grades of drive circuit units are connected with the control terminal of the controllable switch circuit unit in M grades of drive circuit units, Vehicular direct-current power feedback unit, P grades of Acquisition Circuit units and locking control signal Acquisition Circuit unit are connect with the input terminal of processor unit respectively through ESD protection circuit unit, the data terminal of processor unit is connect with the end RXD of LIN transceiver unit and the end TXD, the end LIN of LIN transceiver unit is connect with LIN signal filter unit and the controller for connecting selector.
Description
Technical field
The present invention relates to selector electronics parking brakes to show, LIN bussing technique application field, and especially a kind of auto-manual changes
The electronics lever circuit of lug-latch.
Background technique
As rapid development of economy and automotive automation are universal, machinery is had been detached from now with the lever of many gearboxes
Structure, but it is purely by way of the switch triggered manually (i.e. electronics lever), by the e-mail of the different stalls of electronics lever
Number gearbox is passed to, then gearbox completes the operation of shift, complicated mechanical structure is eliminated, so also having liberated speed change
The fixed position of the mechanical lever of case, theoretically you can be placed on Anywhere, or even be made into any shape；Secondly automobile LIN
It applies to the mature and reliable of bus, the TCU gearbox data exchange with automobile makes full use of relevant information, not only simplifies
Overall wire sheaves improve the reliability of data transmission again, and electronic gear shifter is the input signal that automatic transmission executes, because of this journey
It is not only stringent to the arrangement space of electronic gear shifter shelves, durability, reliability, stability, high temperature resistant environmental performance demand in the industry,
Electronic gear shifter Electronic Design is also wanted to prevent output short-circuit, overvoltage protection, ESD protection simultaneously.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of electronics lever circuits of auto-manual selector, with realization pair
Selector electronics bar current power state, P grades, Ulock state real-time detection issue selector by LIN bus and currently press
Key information, entire car controller receive key information, receive selector current gear location information by LIN bus, total by LIN
It is asynchronous that line solves the problems, such as that the instruction of electronic gear shifter gear is shown with meter key, avoids by output short-circuit, over-voltage, ESD band
The problem come.
In order to solve problem above, the technological means that the present invention takes is: a kind of electronics lever of auto-manual selector
Circuit, including Vehicular direct-current power feedback unit, P grades of Acquisition Circuit units, locking control signal Acquisition Circuit unit, gear refer to
Show circuit unit, processor unit, ESD protection circuit unit, LIN transceiver unit, LIN signal filter unit and power supply list
Member；The power supply unit includes power supply voltage regulation unit, power filtering unit and 5V converting unit, the power supply voltage regulation unit, electricity
Source filter unit and 5V converting unit are sequentially connected in series, and the input terminal of the power supply voltage regulation unit is for taking electric car to carry direct current, institute
Stating gear indicating circuit unit includes P grades of display circuit units, R grades of display circuit units, N grades of display circuit units, D grades of displays
Circuit unit, M grades of display circuit units, P grades of drive circuit units, R grades of drive circuit units, N grades of drive circuit units, D grades
Drive circuit unit and M grades of drive circuit units；The P grades of display circuit unit, R grades of display circuit units, N grades of display circuits
Unit, D grades of display circuit units and M grades of display circuit units include a LED light and one first current-limiting resistance unit, so
One end of LED light is connect with the input terminal of 5V converting unit, one end of the other end of the LED light and the first current-limiting resistance unit
Connection, the other end ground connection of the first current-limiting resistance unit, the P grades of drive circuit unit, R grades of drive circuit units, N grades
Drive circuit unit, D grade drive circuit unit and M grades of drive circuit units include a controllable switch circuit unit and one second
Current-limiting resistance unit, the controllable switch circuit unit are connected with the second current-limiting resistance unit；The P grades of drive circuit unit
One end is connect with the other end of the LED light in P grades of display circuit units, the other end ground connection of the P grades of drive circuit unit；Institute
The one end for stating R grades of drive circuit units is connect with the other end of the LED light in R grades of display circuit units, the R grades of driving circuit
The other end of unit is grounded；The other end of one end of the N grades of drive circuit unit and the LED light in N grades of display circuit units
Connection, the other end ground connection of the N grades of drive circuit unit；One end of the D grades of drive circuit unit and D grades of display circuit lists
The other end of LED light in member connects, the other end ground connection of the D grades of drive circuit unit；The M grades of drive circuit unit
One end is connect with the other end of the LED light in M grades of display circuit units, the other end ground connection of the M grades of drive circuit unit；Institute
State five output ends of processor unit through ESD protection circuit unit respectively with P grades of drive circuit units, R grades of driving circuit lists
The control of member, N grades of drive circuit units, D grades of drive circuit units and the controllable switch circuit unit in M grades of drive circuit units
End connection, the Vehicular direct-current power feedback unit, P grades of Acquisition Circuit units and locking control signal Acquisition Circuit unit warp
ESD protection circuit unit is connect with the input terminal of processor unit respectively, and the Vehicular direct-current power feedback unit is equipped with
It is linearly followed for the input terminal voltage to 5V converting unit and feedback voltage level is to processor unit, the P grades of Acquisition Circuit list
Member is provided as the P shelves gear signal of acquisition electronics lever and feeds back to processor unit, the locking control signal Acquisition Circuit unit
It is provided as the locking control signal of acquisition electronics lever and feeds back to processor unit；The data terminal and LIN of the processor unit are received
The end RXD of hair device unit is connected with the end TXD, and the end LIN of the LIN transceiver unit connect and uses with LIN signal filter unit
In connection selector controller, the 5V converting unit by the filtered Vehicular direct-current electricity of pressure stabilizing be converted into 5V direct current and to
P grades of Acquisition Circuit units, locking control signal Acquisition Circuit unit, processor unit, LIN transceiver unit and the filtering of LIN signal are single
Member power supply.
Compared with prior art, the beneficial effects of the present invention are: realizing electronic gear shifter power supply, P grades, the letter of lock control state
Number acquisition, issues the current key information of selector by LIN bus, the controller of selector receives gear information, realizes electronics
P grades of selector and lock control recognition by pressing keys；Key information is sent to electronic gear shifter, electronics by LIN bus by processor unit
Selector receives LIN message information and to processor unit feedback command, lights corresponding gear display unit, solves electronics
The instruction of selector gear shows asynchronous problem with meter key；When locking control signal is upper lock signal, the controller of selector
The instruction of shift cannot be issued, so that selector cannot shift gears, current gear is maintained to run；When locking control signal is unlock letter
Number when, the instruction of the capable of emitting shift of the controller of selector is normal to shift gears, and realizes the lock control function of selector；It can be to LED light
Current compensation is carried out, the brightness of LED light is improved, avoids the problem that being brought by output short-circuit, under-voltage, over-voltage, ESD.
Detailed description of the invention
Fig. 1 show modular structure schematic block diagram of the invention；
Fig. 2 show the electrical block diagram of power supply unit；
Fig. 3 show the electrical block diagram of gear indicating circuit unit；
Fig. 4 show the electrical block diagram of Vehicular direct-current power feedback unit；
Fig. 5 show the electrical block diagram of P grades of Acquisition Circuit units；
Fig. 6 show the electrical block diagram of locking control signal Acquisition Circuit unit；
Fig. 7 show the electrical block diagram of LIN transceiver unit, LIN signal filter unit.
Specific embodiment
To keep the contents of the present invention clearer, with reference to the accompanying drawing, a specific embodiment of the invention is made further
Detailed description.It should be noted that for purposes of clarity, it is omitted that unrelated to the invention, this field is common in attached drawing and explanation
The expression and description of component known to technical staff.
As shown in Figure 1, a kind of electronics lever circuit of auto-manual selector, including Vehicular direct-current power feedback list
Member, P grades of Acquisition Circuit units, locking control signal Acquisition Circuit unit, gear indicating circuit unit, processor unit, ESD protection electricity
Road unit, LIN transceiver unit, LIN signal filter unit and power supply unit；The power supply unit include power supply voltage regulation unit,
Power filtering unit and 5V converting unit, the power supply voltage regulation unit, power filtering unit and 5V converting unit are sequentially connected in series, institute
The input terminal of power supply voltage regulation unit is stated for taking electric car to carry direct current, the gear indicating circuit unit includes P grades of display circuits
Unit, R grades of display circuit units, N grades of display circuit units, D grades of display circuit units, M grades of display circuit units, P grades of drivings
Circuit unit, R grade drive circuit unit, N grades of drive circuit units, D grades of drive circuit units and M grades of drive circuit units；Institute
State P grades of display circuit units, R grades of display circuit units, N grades of display circuit units, D grades of display circuit units and M grades of display electricity
Road unit includes a LED light and one first current-limiting resistance unit, so the input terminal of one end of LED light and 5V converting unit connects
It connects, the other end of the LED light is connect with one end of the first current-limiting resistance unit, the other end of the first current-limiting resistance unit
Ground connection, the P grades of drive circuit unit, R grades of drive circuit units, N grades of drive circuit units, D grades of drive circuit units and M grades
Drive circuit unit includes a controllable switch circuit unit and one second current-limiting resistance unit, the controllable switch circuit unit
It connects with the second current-limiting resistance unit；One end of the P grades of drive circuit unit and the LED light in P grades of display circuit units
Other end connection, the other end ground connection of the P grades of drive circuit unit；One end of the R grades of drive circuit unit and R grades of displays
The other end of LED light in circuit unit connects, the other end ground connection of the R grades of drive circuit unit；The N grades of driving circuit
One end of unit is connect with the other end of the LED light in N grades of display circuit units, the other end of the N grades of drive circuit unit
Ground connection；One end of the D grades of drive circuit unit is connect with the other end of the LED light in D grades of display circuit units, D grades described
The other end of drive circuit unit is grounded；One end of the M grades of drive circuit unit and the LED light in M grades of display circuit units
Other end connection, the other end of the M grade drive circuit unit is grounded；Five output ends of the processor unit are through ESD
Protection circuit unit respectively with P grades of drive circuit units, R grades of drive circuit units, N grades of drive circuit units, D grades of driving circuits
Unit is connected with the control terminal of the controllable switch circuit unit in M grades of drive circuit units, the Vehicular direct-current power supply feedback electricity
Road unit, P grades of Acquisition Circuit units and locking control signal Acquisition Circuit unit through ESD protection circuit unit respectively with processor unit
Input terminal connection, the Vehicular direct-current power feedback unit be provided as to the input terminal voltage of 5V converting unit linearly with
With simultaneously feedback voltage level to processor unit, the P grades of Acquisition Circuit unit is provided as the P shelves gear signal of acquisition electronics lever
And processor unit is fed back to, the locking control signal Acquisition Circuit unit is provided as the locking control signal and feedback of acquisition electronics lever
To processor unit；The data terminal of the processor unit is connect with the end RXD of LIN transceiver unit and the end TXD, the LIN
The end LIN of transceiver unit is connect with LIN signal filter unit and the controller for connecting selector, the 5V converting unit
The filtered Vehicular direct-current electricity of pressure stabilizing is converted into 5V direct current and to P grades of Acquisition Circuit units, locking control signal Acquisition Circuit list
Member, processor unit, LIN transceiver unit and the power supply of LIN signal filter unit.
Existing corresponding function circuit form can be used in above-mentioned each functional circuit, and processor unit, LIN transceiver unit can divide
Not Cai Yong existing processor chips, LIN transceiving chip, the device of chip perimeter is the prior art.P grades of Acquisition Circuit units are adopted
The P shelves signal of set electron bar, is sent to processor unit, and processor unit receives acquisition signal and by control LIN transmitting-receiving
The current key information of electronics lever (i.e. P grades of signal) is sent to the controller of selector, the controller of selector by device unit
It identifies the current key information of electronics lever and sends the instruction of P grades of displays to processor unit, processor unit receives P grades
The instruction of display simultaneously generates trigger signal, controls the controllable switch circuit unit conducting in P grades of drive circuit units, P grades of drivings
The second current-limiting resistance unit in circuit unit is in parallel with the first current-limiting resistance unit, thus the LED in P grades of display circuit units
The electric current that lamp passes through is bigger, so that LED light is lit from the state of backlight, shows to carry out P gear；When selector
When controller sends R grades, N grades, D grades, M gear idsplay order to processor unit by LIN bus, processor unit reception refers to
Trigger signal is enabled and generated, the controlable electric current unit conducting in corresponding gear drive circuit unit is controlled, thus corresponding shelves driving
The second current-limiting resistance unit in circuit unit is in parallel with the first current-limiting resistance unit, thus in corresponding shelves display circuit unit
The electric current that LED light passes through is bigger, so that LED light is lit from the state of backlight, shows to carry out corresponding shelves gear.
Locking control signal Acquisition Circuit unit acquires the locking control signal of electronics bar, that is, the signal for issuing locking or unlock is given
Processor unit, processor unit receives locking control signal, and controls the controller that LIN transceiver is sent to selector, selector
Controller receive locking control signal, when locking control signal is upper lock signal, the controller of selector cannot issue shift
Instruction, so that selector cannot shift gears, maintains current gear to run；When locking control signal is unlocking signal, the control of selector
The instruction of the capable of emitting shift of device processed is normal to shift gears.
Due to P grades of display circuit units, R grades of display circuit units, N grades of display circuit units, D grades of display circuit units and
M grades of display circuit units are powered by power supply unit, and power supply unit takes electricity in Vehicular direct-current electricity, when electricity occurs in Vehicular direct-current power supply
When pressing relatively low, P grades of display circuit units, R grades of display circuit units, N grades of display circuit units, D grades of display circuit units and M grades
LED light in display circuit unit can be relatively darker relative to normal condition, so, Vehicular direct-current power feedback unit pair
The input terminal voltage of 5V converting unit follow and feedback voltage level is to processor unit, and processor unit leads to LIN bus
Vehicular direct-current electricity condition is fed back to the controller of selector, the voltage value of feedback and the minimum electricity of setting are sent when processor unit
When pressing threshold value, the controller of selector sends compensating instruction to processor unit, and processor unit generates trigger signal to gear
Drive circuit unit, the controlable electric current unit conducting in all gear drive circuit units, thus the second current-limiting resistance unit
It is in parallel with the first current-limiting resistance unit, so that the electric current that the LED light in all grades of display circuit units passes through is bigger, thus right
LED light carries out current compensation, improves the brightness of LED light, avoids power supply disturbance.
With reference to Fig. 2, VBAT, that is, Vehicular direct-current electricity, power supply voltage regulation unit by ceramic condenser C2, C5, anti-reverse diode D1,
TVS pipe TVS1 composition；Power filtering unit is made of electrolytic capacitor E1, capacitor C4；5V converting unit is by linear power supply U1, capacitor
C1, C3 are formed, wherein the preferred model L5150N of U1.
With reference to Fig. 3, the P grades of drive circuit unit, R grades of drive circuit units, N grades of drive circuit units, D grades of driving electricity
Controllable triode Q1-Q5, the second current limliting electricity is respectively adopted in controllable switch circuit unit in road unit and M grades of drive circuit units
Resistance R1-R5 is respectively adopted in resistance unit；The P grades of display circuit unit, R grades of display circuit units, N grades of display circuit units, D
Light-emitting diode LED 1-LED5, the first limit is respectively adopted in a LED light in shelves display circuit unit and M grades of display circuit units
Resistance R6-R10 is respectively adopted in leakage resistance unit, in order to which the control signal issued to processor unit carries out pressure stabilizing, the P
Shelves display circuit unit, R grades of display circuit units, N grades of display circuit units, D grades of display circuit units and M grades of display circuit lists
Filter capacitor is respectively adopted in member, and filter capacitor one end is electrically connected the base stage (control terminal) of triode, other end ground connection, filter capacitor
It is capacitor C6-C10 respectively.
With reference to Fig. 4, the Vehicular direct-current power feedback unit includes that resistor voltage divider circuit unit (has resistance R13
Formed with resistance R16), the first filter capacitor C14, the second filter capacitor C13 and clamp diode D2, the resistor voltage divider circuit
One end connection of the input terminal of unit and the output end, the first filter capacitor C14 that connect power filtering unit, first filtering
The other end of capacitor C14 is grounded, one end, the clamper of the output end of the resistor voltage divider circuit unit and the second filter capacitor C13
Diode D2 connection, the second filter capacitor C13 the other end ground connection, the clamp diode D2 and 5V converting unit it is defeated
Outlet connection, output end of the output end of the resistor voltage divider circuit unit as Vehicular direct-current power feedback unit.
The P with reference to described in Fig. 5 grades of Acquisition Circuit unit includes the first contact switch (SW2 and SW3), the first biasing resistor R11
With the first RC filter circuit, one end of first contact switch is grounded, one end of the other end and the first biasing resistor R11, the
One end of one RC filter circuit connects, and the other end of the first biasing resistor R11 is connect with the output end of 5V converting unit, institute
State output end of the other end of the first RC filter circuit as P grades of Acquisition Circuit units, the first RC filtered electrical routing resistance
R14 and capacitor C15 composition.
With reference to Fig. 6, the locking control signal Acquisition Circuit unit includes the second contact switch (SW1 and SW4), the second biased electrical
R12 and the 2nd RC filter circuit are hindered, one end of second contact switch is grounded, and the one of the other end and the second biasing resistor R12
One end connection at end, the 2nd RC filter circuit, the other end of the second biasing resistor R12 and the output end of 5V converting unit connect
It connects, output end of the other end of the 2nd RC filter circuit as locking control signal Acquisition Circuit unit, the 2nd RC filtering
Electric routing resistance R15 and capacitor C16 composition.
The processor unit uses single-chip microcontroller minimum working cell, including single-chip microcontroller U2, reset circuit unit, crystal oscillator list
Member and filter circuit unit, the reset circuit unit and crystal oscillator unit are connect with single-chip microcontroller respectively, and the power module is through filtering
Wave circuit unit is powered to processor unit.Single-chip microcontroller U2 model MC9S12G48, the ESD protection circuit unit of processor by
Exclusion.
With reference to Fig. 7, the LIN transceiver unit uses LIN transponder chip, and preferably model is NXP transceiver
TJA1041；LIN signal filter unit includes filter inductance circuit H1, terminal coupling circuit ESD protection circuit T1, filter circuit
C21 is sequentially connected composition.
In use, acquisition electronic gear shifter power supply, P grade, the signal of lock control state, pass through LIN bus sending selector
Current key information, the controller of selector receive gear information, realize electronic gear shifter P grades and lock control recognition by pressing keys；Processing
Key information is sent to electronic gear shifter by LIN bus by device unit, and electronic gear shifter receives LIN message information and to processing
Device unit feedback command lights corresponding gear display unit, solves the instruction of electronic gear shifter gear and shows with meter key
Asynchronous problem；When locking control signal is upper lock signal, the controller of selector cannot issue the instruction of shift, to shift gears
Device cannot shift gears, and current gear is maintained to run；When locking control signal is unlocking signal, the capable of emitting shift of the controller of selector
Instruction, it is normal to shift gears, realize the lock control function of selector；Current compensation can be carried out to LED light, improve the brightness of LED light,
It avoids the problem that being brought by output short-circuit, under-voltage, over-voltage, ESD.
Finally, it should be noted that above-mentioned specific embodiment is used to illustrate the present invention, rather than the present invention is carried out
Limitation, the technical solution that can be still illustrated embodiment for those skilled in the art are modified, and
Any modifications and changes made to the present invention also should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of electronics lever circuit of auto-manual selector, including Vehicular direct-current power feedback unit, P grades of acquisition electricity
Road unit, locking control signal Acquisition Circuit unit, gear indicating circuit unit, processor unit, ESD protection circuit unit, LIN are received
Send out device unit, LIN signal filter unit and power supply unit；The power supply unit includes power supply voltage regulation unit, power filtering unit
With 5V converting unit, the power supply voltage regulation unit, power filtering unit and 5V converting unit are sequentially connected in series, the power supply pressure stabilizing list
For the input terminal of member for taking electric car to carry direct current, the gear indicating circuit unit includes P grades of display circuit units, R grades of displays
Circuit unit, N grades of display circuit units, D grades of display circuit units, M grades of display circuit units, P grades of drive circuit units, R grades
Drive circuit unit, N grade drive circuit unit, D grades of drive circuit units and M grades of drive circuit units；The P grades of display circuit
Unit, R grades of display circuit units, N grades of display circuit units, D grades of display circuit units and M grades of display circuit units include one
LED light and one first current-limiting resistance unit, one end of the LED light are connect with the input terminal of 5V converting unit, the LED light
The other end is connect with one end of the first current-limiting resistance unit, the other end ground connection of the first current-limiting resistance unit, the P grades of drive
Dynamic circuit unit, R grades of drive circuit units, N grades of drive circuit units, D grades of drive circuit units and M grades of drive circuit units are equal
Including a controllable switch circuit unit and one second current-limiting resistance unit, the controllable switch circuit unit and the second current-limiting resistance
Unit series connection；One end of the P grades of drive circuit unit is connect with the other end of the LED light in P grades of display circuit units, described
The other end ground connection of P grades of drive circuit units；One end of the R grades of drive circuit unit and the LED in R grades of display circuit units
The other end of lamp connects, the other end ground connection of the R grades of drive circuit unit；One end of the N grades of drive circuit unit with N grades
The other end of LED light in display circuit unit connects, the other end ground connection of the N grades of drive circuit unit；The D grades of driving
One end of circuit unit is connect with the other end of the LED light in D grades of display circuit units, the D grades of drive circuit unit it is another
One end ground connection；One end of the M grades of drive circuit unit is connect with the other end of the LED light in M grades of display circuit units, described
The other end ground connection of M grades of drive circuit units；Five output ends of the processor unit through ESD protection circuit unit respectively with
P grades of drive circuit units, R grades of drive circuit units, N grades of drive circuit units, D grades of drive circuit units and M grades of driving circuits
The control terminal of controllable switch circuit unit in unit connects, the Vehicular direct-current power feedback unit, P grades of Acquisition Circuits
Unit and locking control signal Acquisition Circuit unit are connect with the input terminal of processor unit respectively through ESD protection circuit unit, described
Vehicular direct-current power feedback unit be provided as linearly following the input terminal voltage of 5V converting unit and feedback voltage level to
Processor unit, the P grades of Acquisition Circuit unit are provided as the P shelves gear signal of acquisition electronics lever and feed back to processor list
Member, the locking control signal Acquisition Circuit unit are provided as the locking control signal of acquisition electronics lever and feed back to processor unit；Institute
It states the data terminal of processor unit to connect with the end RXD of LIN transceiver unit and the end TXD, the LIN of the LIN transceiver unit
The controller connecting with LIN signal filter unit and for connecting selector is held, the 5V converting unit is filtered by pressure stabilizing
Vehicular direct-current electricity be converted into 5V direct current and to P grades of Acquisition Circuit units, locking control signal Acquisition Circuit unit, processor unit,
LIN transceiver unit and the power supply of LIN signal filter unit；
The Vehicular direct-current power feedback unit includes resistor voltage divider circuit unit, the first filter capacitor, the second filtered electrical
Hold and clamp diode, the input terminal of the resistor voltage divider circuit unit with connect power filtering unit output end, first filter
One end of wave capacitor connects, the other end ground connection of first filter capacitor, the output end of the resistor voltage divider circuit unit with
One end of second filter capacitor, clamp diode connection, the other end ground connection of second filter capacitor, the clamp diode
It is connect with the output end of 5V converting unit, the output end of the resistor voltage divider circuit unit is as Vehicular direct-current power feedback
The output end of unit.
2. a kind of electronics lever circuit of auto-manual selector as described in claim 1, which is characterized in that the P grades of drive
In dynamic circuit unit, R grades of drive circuit units, N grades of drive circuit units, D grades of drive circuit units and M grades of drive circuit units
Controllable switch circuit unit be all made of controllable triode.
3. a kind of electronics lever circuit of auto-manual selector as described in claim 1, which is characterized in that described P grades is adopted
Collector unit include the first contact switch, the first biasing resistor and the first RC filter circuit, the one of first contact switch
End ground connection, the other end are connect with one end of one end of the first biasing resistor, the first RC filter circuit, first biasing resistor
The other end is connect with the output end of 5V converting unit, and the other end of the first RC filter circuit is as P grades of Acquisition Circuit units
Output end.
4. a kind of electronics lever circuit of auto-manual selector as described in claim 1, which is characterized in that the lock control letter
Number Acquisition Circuit unit includes the second contact switch, the second biasing resistor and the 2nd RC filter circuit, second contact switch
One end ground connection, the other end connect with one end of one end of the second biasing resistor, the 2nd RC filter circuit, second biased electrical
The other end of resistance is connect with the output end of 5V converting unit, and the other end of the 2nd RC filter circuit is acquired as locking control signal
The output end of circuit unit.
5. a kind of electronics lever circuit of auto-manual selector as described in claim 1, which is characterized in that the processor
Unit uses single-chip microcontroller minimum working cell, including single-chip microcontroller, reset circuit unit, crystal oscillator unit and filter circuit unit, institute
It states reset circuit unit and crystal oscillator unit is connect with single-chip microcontroller respectively, the power supply unit gives processor list through filter circuit unit
Member power supply.
6. a kind of electronics lever circuit of auto-manual selector as described in claim 1, which is characterized in that the ESD is anti-
Protection circuit unit uses exclusion.
7. a kind of electronics lever circuit of auto-manual selector as described in claim 1, which is characterized in that the LIN is received
It sends out device unit and uses NXP transceiver TJA1041.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710590356.9A CN107489764B (en) | 2017-07-19 | 2017-07-19 | A kind of electronics lever circuit of auto-manual selector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710590356.9A CN107489764B (en) | 2017-07-19 | 2017-07-19 | A kind of electronics lever circuit of auto-manual selector |
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| Publication Number | Publication Date |
|---|---|
| CN107489764A CN107489764A (en) | 2017-12-19 |
| CN107489764B true CN107489764B (en) | 2019-10-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710590356.9A Active CN107489764B (en) | 2017-07-19 | 2017-07-19 | A kind of electronics lever circuit of auto-manual selector |
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|---|---|---|---|---|
| CN111998064B (en) * | 2020-07-14 | 2021-11-23 | 宁波高发汽车控制系统股份有限公司 | Manual-automatic gear shifter based on Hall induction |
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| CN107489764A (en) | 2017-12-19 |
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