CN110080892A - Automobile control method based on boost pressure signal - Google Patents
Automobile control method based on boost pressure signal Download PDFInfo
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- CN110080892A CN110080892A CN201910423202.XA CN201910423202A CN110080892A CN 110080892 A CN110080892 A CN 110080892A CN 201910423202 A CN201910423202 A CN 201910423202A CN 110080892 A CN110080892 A CN 110080892A
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
- F02D29/02—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving vehicles; peculiar to engines driving variable pitch propellers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D31/00—Use of speed-sensing governors to control combustion engines, not otherwise provided for
- F02D31/001—Electric control of rotation speed
- F02D31/002—Electric control of rotation speed controlling air supply
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D41/3809—Common rail control systems
- F02D41/3836—Controlling the fuel pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/04—Engine intake system parameters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2250/00—Engine control related to specific problems or objectives
- F02D2250/18—Control of the engine output torque
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The present invention is suitable for technical field of automobile control, provides a kind of automobile control method based on boost pressure signal, comprising: select the control model of control unit；Control unit receives the boost pressure signal of air inlet pressure sensor output, and carries out the amplification of corresponding multiple to boost pressure signal according to the control model of setting, and amplified boost pressure signal is sent to automobile ECU；Automobile ECU controls automobile engine operation according to amplified boost pressure signal.Such method, which is realized, carries out auxiliary control to automobile, is not merely by the original control system of automobile, and driver can control automobile according to the demand of itself, enhance the experience sense of driver.
Description
Technical field
The invention belongs to technical field of automobile control more particularly to a kind of automobile controlling parties based on boost pressure signal
Method.
Background technique
ECU (Electronic Control Unit) refers to electronic control unit, also known as car running computer, is mounted on vapour
Interior portion is generally used to control fuel injection amount, gaseous mixture ratio etc., by microprocessor, memory, input/output interface, mould
The large scale integrated circuits such as number converter and shaping, driving composition.
The pressure conversion that existing automobile air inlet pressure sensor will test passes to automobile ECU, engine at electric signal
ECU adjusts the output torque of engine, but automobile ECU with this according to the revolving speed of the voltage signal amendment engine received
The signal that heavy dependence sensor is sent cannot take different control strategies for different vehicle conditions, can not play engine
Maximum potential.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of automobile control method based on boost pressure signal, to solve
Automobile ECU cannot take that different control strategies, can not to play engine maximum latent for different vehicle conditions in the prior art
The problem of energy.
In order to solve the above technical problems, the technical solution used in the present invention is: a kind of vapour based on boost pressure signal
Vehicle control method, comprising:
Select the control model of control unit；
Described control unit receives the boost pressure signal of air inlet pressure sensor output, and according to the control model of setting
Amplified boost pressure signal is sent to automobile ECU by the amplification that corresponding multiple is carried out to boost pressure signal；
Automobile ECU controls automobile engine operation according to amplified boost pressure signal.
Further, described control unit includes selecting unit and signal processing unit, and the signal processing unit is letter
Any two or more combinations, the input of the selecting unit in number amplifying unit, signal comparing unit and chip controls unit
The signal output end of end connection air inlet pressure sensor, the output end of the selecting unit are separately connected the signal amplification unit
Input terminal, the input terminal of the signal comparing unit and the input terminal of the chip controls unit, the signal amplification unit
Output end, the output end of the signal comparing unit and the output end of the chip controls unit be all connected with automobile ECU.
Further, the selecting unit includes that first switch, second switch and third switch, and the one of the first switch
The one end at end, one end of the second switch and third switch is all connected with the signal output end of air inlet pressure sensor, institute
The other end for stating first switch connects the input terminal of the signal amplification unit, and the other end of the second switch connects the letter
The other end of the input terminal of number comparing unit, the third switch connects the input terminal of the chip controls unit.
Further, the signal comparing unit includes comparison module, the first amplification module and the second amplification module, air inlet
The signal output end of pressure sensor is separately connected the first input of the input terminal of the comparison module, first amplification module
The first input end at end and second amplification module, the output end of the comparison module are separately connected first amplification module
The second input terminal and second amplification module the second input terminal, the output end of first amplification module and described second
The output end of amplification module is all connected with automobile ECU.
Further, the comparison module includes comparator U1With the first adjustment module, the comparator U1Positive input
The signal output end of end connection baroceptor, the comparator U1Reverse input end connect the defeated of first adjustment module
Outlet, the comparator U1Output end be separately connected first amplification module the second input terminal and it is described second amplification mould
Second input terminal of block.
Further, first amplification module includes first switch module, amplifier U2, resistance R2, resistance R3, resistance
R4With slide rheostat Rb, the input terminal of the first switch module connects the output end of the comparison module, the first switch
The output end of module connects the amplifier U2A supply terminals, the amplifier U3Another supply terminals connect
Meet power supply VCC, the amplifier U2Positive input be separately connected the resistance R3One end and the resistance R4One end,
The resistance R4The other end ground connection, the resistance R3The other end connection air inlet pressure sensor signal output end, it is described to put
Big device U2Reverse input end be separately connected the resistance R2One end and the slide rheostat RbOne end, the resistance R2
The other end ground connection, the slide rheostat RbThe other end be separately connected the amplifier U2Output end and automobile ECU.
Further, second amplification module includes second switch module, amplifier U3, resistance R5, resistance R6, resistance
R7With slide rheostat Rc, the input terminal of the second switch module connects the output end of the comparison module, the second switch
The output end of module connects the amplifier U3A supply terminals, the amplifier U3Another power supply wiring termination
Ground, the amplifier U3Positive input be separately connected the resistance R5One end and the resistance R6One end, the resistance
R6The other end ground connection, the resistance R5The other end connection air inlet pressure sensor signal output end, the amplifier U3's
Reverse input end is separately connected the resistance R7One end and the slide rheostat RcOne end, the resistance R7The other end
Ground connection, the slide rheostat RcThe other end be separately connected the amplifier U3Output end and automobile ECU.
Further, the signal amplification unit includes amplifier U4, resistance R10, division module and resistance value can change
Third adjustment module, the amplifier U4Noninverting input connect the output end of the division module, the division module
Input terminal connect the signal output end of the air inlet pressure sensor, the resistance R10One end ground connection, the resistance R10's
The other end is separately connected the amplifier U4Reverse input end and the third adjustment module one end, the amplifier U4's
Output end is separately connected the other end and automobile ECU of the third adjustment module.
Further, the third adjustment module includes the adjusting branch of N item parallel connection, and the M articles adjusting branch includes one
Switch KMWith a resistance rM, the switch KMOne end connect one end of the third adjustment module, the switch KMIt is another
End connects the resistance rMOne end, the resistance rMThe other end connect the other end of the third adjustment module, wherein 0 <
M≤N, and M and N are natural number.
Further, the chip controls unit includes processor and several fix multiple amplifying unit, the processing
The signal output end of the input port connection air inlet pressure sensor of device, the input terminal of each fixed multiple amplifying unit connect
An output port of the processor is connect, the output end of each fixed multiple amplifying unit is all connected with automobile ECU.
The beneficial effects of adopting the technical scheme are that the present invention devises one kind based on boost pressure signal
Automobile control method, when automobile engine is not able to satisfy power demand, driver can choose the control mould of control unit
Formula, control unit can carry out the amplification of corresponding multiple to boost pressure signal according to the selected mode, by amplified air inlet
Pressure signal is sent to automobile ECU, and automobile ECU controls automobile engine according to amplified boost pressure signal and runs.It is such
Control method meets automobile and is changed accordingly to different road conditions, plays the maximum potential of engine.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the flow chart of the automobile control method provided in an embodiment of the present invention based on boost pressure signal；
Fig. 2 is the functional block diagram of control unit provided in an embodiment of the present invention；
Fig. 3 is the circuit connection diagram of signal comparing unit provided in an embodiment of the present invention；
Fig. 4 is the circuit connection diagram of signal amplification unit provided in an embodiment of the present invention；
Fig. 5 is the functional block diagram of chip controls unit provided in an embodiment of the present invention.
In figure: 100, comparison module；200, the first amplification module；300, the second amplification module；400, division module；500,
Third adjustment module.
Specific embodiment
In being described below, for illustration and not for limitation, the tool of such as particular system structure, technology etc is proposed
Body details, to understand thoroughly the embodiment of the present invention.However, it will be clear to one skilled in the art that there is no these specific
The present invention also may be implemented in the other embodiments of details.In other situations, it omits to well-known system, device, electricity
The detailed description of road and method, in case unnecessary details interferes description of the invention.
In order to illustrate technical solutions according to the invention, the following is a description of specific embodiments.
As shown in Figure 1, the automobile control method based on boost pressure signal, comprising:
Step S101 selects the control model of control unit.
The selection gist of control model includes weather, road conditions and vehicle condition.Such as need to increase power need when road conditions difference
It asks, power demand can be reduced when road conditions are good, driver can carry out the selection of control model according to actual needs, meet
Particular/special requirement of the driver to automobile.
Step S102, control unit receive the boost pressure signal of air inlet pressure sensor output, and according to the control of setting
Molding formula carries out the amplification of corresponding multiple to boost pressure signal, and amplified boost pressure signal is sent to automobile ECU.
After the completion of control model selection, control unit carries out the amplification of corresponding multiple to boost pressure signal, this place
The amplification said includes positive amplification and reversed amplification (diminution).
Step S103, automobile ECU control automobile engine according to amplified boost pressure signal and run.
When control unit is reversely amplified boost pressure signal and (reduced), automobile ECU can control reduction oil spout
Amount, reduces the power output of engine, realizes that the effect of fuel-economizing, such mode are suitble in the good situation of road conditions, and automobile is flat
Steady operation；When control unit carries out positive amplification to boost pressure signal, automobile ECU can control increase distributive value, improve hair
The power output of motivation, such mode are suitble to the situation of vehicle starting, climbing or road conditions difference, need engine to increase power defeated
Out, the road that can smoothly start to walk, climb or pass through road conditions difference.Such method, which is realized, carries out auxiliary control to automobile, no
It only is by the original control system of automobile, driver can control automobile according to the demand of itself, and enhancing drives
The experience sense of person.
As shown in Fig. 2, control unit includes selecting unit and signal processing unit, signal processing unit is that signal amplification is single
The input terminal of any two or more combinations in member, signal comparing unit and chip controls unit, selecting unit connects air inlet pressure
The signal output end of force snesor, it is more single that the output end of selecting unit is separately connected the input terminal of signal amplification unit, signal
Member input terminal and chip controls unit input terminal, the output end of signal amplification unit, the output end of signal comparing unit and
The output end of chip controls unit is all connected with automobile ECU.
Signal processing unit is any two or more in signal amplification unit, signal comparing unit and chip controls unit
Combination, designer can setting signal processing unit according to actual needs number and type, it is single that driver can pass through selection
Whether member control signal amplification unit, signal comparing unit and chip controls unit work, and realize different control models.
In one embodiment of the present of invention, selecting unit includes first switch, second switch and third switch, first switch
One end, one end of second switch and one end of third switch be all connected with the signal output end of air inlet pressure sensor, first opens
The input terminal of the other end connection signal amplifying unit of pass, the input terminal of the other end connection signal comparing unit of second switch,
The input terminal of the other end connection chip controls unit of third switch.
When first switch closure, second switch and third switch disconnect, works for signal amplification unit carry out automobile at this time
Auxiliary control；When second switch closure, first switch and third switch disconnect, automobile is carried out for signal comparing unit at this time
Auxiliary control；Third closes the switch, and when first switch and the second switch disconnects, carries out the auxiliary of automobile at this time for chip controls unit
Help control；The closure and disconnect the choosing for carrying out control model that driver is switched by control first switch, second switch and third
It selects.
As shown in figure 3, signal comparing unit includes comparison module 100, the first amplification module 200 and the second amplification module
300, the signal output end of air inlet pressure sensor be separately connected the input terminal of comparison module 100, the first amplification module 200
The first input end of one input terminal and the second amplification module 300, the output end of comparison module 100 are separately connected the first amplification module
Second input terminal of 200 the second input terminal and the second amplification module 300, the output end of the first amplification module 200 and second are put
The output end of big module 300 is all connected with automobile ECU.
First amplification module 200, the second amplification module 300 and comparison module 100 receive air inlet pressure sensor output
Boost pressure signal, the boost pressure signal that comparison module 100 exports preset value and received air inlet pressure sensor into
The first amplification module 200 or the work of the second amplification module 300, the first amplification module 200 or the second amplification mould are controlled after row
Block 300 carries out the amplification of setting multiple to boost pressure signal, and amplified boost pressure signal is sent in automobile ECU.Than
The boost pressure signal and preset value that air inlet pressure sensor exports can be compared compared with module 100, to judge first
Whether the work of amplification module 200 and the second amplification module 300, the admission pressure that air inlet pressure sensor exports is believed with realizing
Number amplified accordingly, then amplified boost pressure signal is sent in automobile ECU again, automobile ECU is according to amplification
Boost pressure signal afterwards controls automobile, to adapt to different load conditions.
In one embodiment of the present of invention, comparison module 100 includes comparator U1With the first adjustment module, comparator U1's
Positive input connects the signal output end of air inlet pressure sensor, comparator U1Reverse input end connect the first adjustment module
Output end, comparator U1Output end be separately connected the second input terminal and the second amplification module 300 of the first amplification module 200
The second input terminal.
Comparator U1Boost pressure signal and preset value are compared, export high level or low electricity according to the result of the comparison
It is flat, it realizes that control which of the first amplification module 200 and the second amplification module 300 work, realizes to admission pressure
The amplification of the corresponding multiple of signal, adapts to different road conditions.
In one embodiment of the present of invention, the first adjustment module includes resistance R1With slide rheostat Ra, resistance R1One end
Connect power supply VCC, resistance R1The other end be separately connected comparator U1Reverse input end and slide rheostat RaOne end, sliding
Rheostat RaThe other end ground connection.
By adjusting slide rheostat RaThe setting of setting value can be carried out, realizes the ratio of boost pressure signal and setting value
Compared with the work of control the first amplification module 200 and the second amplification module 300.
In one embodiment of the present of invention, the first amplification module 200 includes first switch module, amplifier U2, resistance R2、
Resistance R3, resistance R4With slide rheostat Rb, the output end of the input terminal connection comparison module 100 of first switch module, first opens
The output end for closing module connects amplifier U2A supply terminals, amplifier U3Another supply terminals connect power supply
VCC, amplifier U2Positive input be separately connected resistance R3One end and resistance R4One end, resistance R4The other end ground connection,
Resistance R3The other end connection air inlet pressure sensor signal output end, amplifier U2Reverse input end be separately connected resistance
R2One end and slide rheostat RbOne end, resistance R2The other end ground connection, slide rheostat RbThe other end be separately connected and put
Big device U2Output end and automobile ECU.
By adjusting slide rheostat RbIt can change the amplification factor of the first amplification module 200, to meet different road conditions
Demand.
In one embodiment of the present of invention, first switch module includes switching transistor Q1, switching transistor Q1Base stage connect
Meet the output end of comparison module 100, switching transistor Q1Emitter ground connection, switching transistor Q1Collector connect amplifier
U2A supply terminals.
When the output of comparison module 100 is high level, switching transistor Q1Conducting, amplifier U2Obtain electric, the first amplification module
200 work, and the amplification of setting multiple is carried out to boost pressure signal.
In one embodiment of the present of invention, the second amplification module 300 includes second switch module, amplifier U3, resistance R5、
Resistance R6, resistance R7With slide rheostat Rc, the output end of the input terminal connection comparison module 100 of second switch module, second opens
The output end for closing module connects amplifier U3A supply terminals, amplifier U3Another supply terminals ground connection, amplification
Device U3Positive input be separately connected resistance R5One end and resistance R6One end, resistance R6The other end ground connection, resistance R5's
The other end connects the signal output end of air inlet pressure sensor, amplifier U3Reverse input end be separately connected resistance R7One end
With slide rheostat RcOne end, resistance R7The other end ground connection, slide rheostat RcThe other end be separately connected amplifier U3's
Output end and automobile ECU.
By adjusting slide rheostat RcIt can change the amplification factor of the first amplification module 200, to meet different road conditions
Demand.
In one embodiment of the present of invention, second switch module includes switching transistor Q2, switching transistor Q2Base stage connect
Meet the output end of comparison module 100, switching transistor Q2Emitter connect power supply VCC, switching transistor Q2Collector connection
Amplifier U3A supply terminals.
When the output of comparison module 100 is high level, switching transistor Q2Conducting, amplifier U3Obtain electric, the first amplification module
200 work, and the amplification of setting multiple is carried out to boost pressure signal.
As shown in figure 4, signal amplification unit includes amplifier U4, resistance R10, division module 400 and resistance value can change
Third adjustment module 500, amplifier U4Noninverting input connection division module 400 output end, division module 400 it is defeated
Enter the signal output end of end connection air inlet pressure sensor, resistance R10One end ground connection, resistance R10The other end be separately connected and put
Big device U4Reverse input end and third adjustment module 500 one end, amplifier U4Output end be separately connected third adjustment module
500 other end and automobile ECU.
Division module 400 receives the boost pressure signal of air inlet pressure sensor output, and carries out to boost pressure signal
It divides, the air inlet pressure force value after partial pressure is less than the air inlet pressure force value of air inlet pressure sensor output, and operational amplifier U is to partial pressure mould
Block 400 divide after boost pressure signal amplify, by third adjustment module 500 can be realized operational amplifier U into
The amplification factor of air pressure force signal.Driver is selected according to locating environment by third adjustment module 500 in this manner
The operating mode of automobile, the air inlet pressure that signal amplification unit can export air inlet pressure sensor according to the operating mode of selection
Force signal carries out positive amplification or reversed amplification (diminution), and the ECU of automobile is according to signal amplification unit treated admission pressure
Value control engine operation plays the potential of engine to adapt to different vehicle condition environment.
In one embodiment of the present of invention, the automobile sub-controlling unit based on boost pressure signal amplification further includes shell
Body, signal amplification unit are installed inside housings, and shell can play the protective effect to signal amplification unit, enhancement device
Stability and the mechanical impact for avoiding equipment.
In one embodiment of the present of invention, division module 400 includes resistance R8With resistance R9, resistance R8One end connect into
The signal output end of air pressure force snesor, resistance R8The other end be separately connected resistance R9One end and operational amplifier U4It is same
To input terminal, resistance R9The other end ground connection.
The air inlet pressure force value of air inlet pressure sensor output is Ui, operational amplifier U is delivered to after division module 400
The air inlet pressure force value of noninverting input isRealize the contracting to air inlet pressure sensor output boost pressure signal
It is small, by adjusting resistance R8With resistance R9The size of specific resistance value can adjust the minification to boost pressure signal.
In one embodiment of the present of invention, third adjustment module 500 includes the adjusting branch of N item parallel connection, the M articles adjusting branch
Road includes a switch KMWith a resistance rM, switch KMOne end connection third adjustment module 500 one end, switch KMIt is another
One end connects resistance rMOne end, resistance rMThe other end connection third adjustment module 500 the other end, wherein 0 < M≤N, and
M and N is natural number.
When normal condition, all switches adjusted in branch are in off-state, when driver is closed a wherein branch
When switch in road, such as the switch K in the M articles branchMClosure, the at this time air inlet of the noninverting input input of operational amplifier
Pressure value isThe output voltage of operational amplifier U is Every adjusting branch
The resistance value of resistance is different in road, by selecting different branch upper switch, resistance RMIt can choose different resistance values, operation is put
Big device realizes the amplification of different multiples, final to realize that signal amplification unit is output to the air inlet pressure force value U in automobile ECUoFor into
The amplification (forward direction amplification or reversed amplification) of the air inlet pressure force value different multiples of air pressure force snesor output, automobile ECU is according to letter
The air inlet pressure force value of number amplifying unit output controls engine operation, to adapt to different road conditions environment, plays the latent of engine
Can, meet the needs of driver.
In one embodiment of the present of invention, signal amplification unit is defeated by the signal of fieldbus and air inlet pressure sensor
The output end of outlet connection, signal amplification unit is connected by fieldbus with the ECU of automobile.Use site bus realizes component
Between connection, can guarantee the stability of electric signal transmission, improve the stability of device entirety.
As shown in figure 5, chip controls unit include processor and several fix multiple amplifying units, one of processor
Input port connects the signal output end of air inlet pressure sensor, and the input terminal of each fixed multiple amplifying unit connects processor
An output port, the output end of each fixed multiple amplifying unit is all connected with automobile ECU.
Processor can select the single-chip microcontroller of the models such as 89C51,89C52, STM8 or STM32, in advance to setting in processor
Several fixed threshold ranges, processor receive the boost pressure signal of air inlet pressure sensor output, and judge it is received into
Air pressure force signal is determined and is controlled accordingly after boost pressure signal is in some threshold range in which threshold range
Output port output order, control connect the output port fixation multiple amplifying unit boost pressure signal is fixed
The amplification of multiple, different fixation multiple amplifying units carry out the amplification (amplification herein of different multiples to boost pressure signal
Including amplifying and reducing), different road conditions are adapted to, the multistage auxiliary control of automobile is realized, improves the sensitivity of auxiliary control.
Embodiment described above is merely illustrative of the technical solution of the present invention, rather than its limitations；Although referring to aforementioned reality
Applying example, invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each
Technical solution documented by embodiment is modified or equivalent replacement of some of the technical features；And these are modified
Or replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution should all
It is included within protection scope of the present invention.
Claims (10)
1. a kind of automobile control method based on boost pressure signal characterized by comprising
Select the control model of control unit；
Described control unit receive air inlet pressure sensor output boost pressure signal, and according to the control model of setting into
Air pressure force signal carries out the amplification of corresponding multiple, and amplified boost pressure signal is sent to automobile ECU；
Automobile ECU controls automobile engine operation according to amplified boost pressure signal.
2. the automobile control method according to claim 1 based on boost pressure signal, which is characterized in that the control is single
Member includes selecting unit and signal processing unit, and the signal processing unit is signal amplification unit, signal comparing unit and core
The signal of any two or more combinations in piece control unit, the input terminal connection air inlet pressure sensor of the selecting unit is defeated
Outlet, the output end of the selecting unit are separately connected the input terminal of the signal amplification unit, the signal comparing unit
The input terminal of input terminal and the chip controls unit, the output end of the signal amplification unit, the signal comparing unit
The output end of output end and the chip controls unit is all connected with automobile ECU.
3. the automobile control method according to claim 2 based on boost pressure signal, which is characterized in that the selection is single
Member includes first switch, second switch and third switch, one end of the first switch, one end of the second switch and described
One end of third switch is all connected with the signal output end of air inlet pressure sensor, and the other end of the first switch connects the letter
The input terminal of number amplifying unit, the other end of the second switch connect the input terminal of the signal comparing unit, the third
The other end of switch connects the input terminal of the chip controls unit.
4. the automobile control method according to claim 2 based on boost pressure signal, which is characterized in that the signal ratio
It include comparison module, the first amplification module and the second amplification module, the signal output end difference of air inlet pressure sensor compared with unit
Connect the first of the input terminal of the comparison module, the first input end of first amplification module and second amplification module
Input terminal, the output end of the comparison module are separately connected the second input terminal of first amplification module and described second and amplify
The output end of second input terminal of module, the output end of first amplification module and second amplification module is all connected with automobile
ECU。
5. the automobile control method according to claim 4 based on boost pressure signal, which is characterized in that the relatively mould
Block includes comparator U1With the first adjustment module, the comparator U1Positive input connection baroceptor signal output
End, the comparator U1Reverse input end connect the output end of first adjustment module, the comparator U1Output end point
The second input terminal of first amplification module and the second input terminal of second amplification module are not connected.
6. the automobile control method according to claim 4 based on boost pressure signal, which is characterized in that described first puts
Big module includes first switch module, amplifier U2, resistance R2, resistance R3, resistance R4With slide rheostat Rb, the first switch
The input terminal of module connects the output end of the comparison module, and the output end of the first switch module connects the amplifier U2
A supply terminals, the amplifier U3Another supply terminals connect power supply VCC, the amplifier U2Forward direction
Input terminal is separately connected the resistance R3One end and the resistance R4One end, the resistance R4The other end ground connection, the electricity
Hinder R3The other end connection air inlet pressure sensor signal output end, the amplifier U2Reverse input end be separately connected institute
State resistance R2One end and the slide rheostat RbOne end, the resistance R2The other end ground connection, the slide rheostat Rb
The other end be separately connected the amplifier U2Output end and automobile ECU.
7. the automobile control method according to claim 4 based on boost pressure signal, which is characterized in that described second puts
Big module includes second switch module, amplifier U3, resistance R5, resistance R6, resistance R7With slide rheostat Rc, the second switch
The input terminal of module connects the output end of the comparison module, and the output end of the second switch module connects the amplifier U3
A supply terminals, the amplifier U3Another supply terminals ground connection, the amplifier U3Positive input point
The resistance R is not connected5One end and the resistance R6One end, the resistance R6The other end ground connection, the resistance R5It is another
One end connects the signal output end of air inlet pressure sensor, the amplifier U3Reverse input end be separately connected the resistance R7
One end and the slide rheostat RcOne end, the resistance R7The other end ground connection, the slide rheostat RcThe other end
It is separately connected the amplifier U3Output end and automobile ECU.
8. the automobile control method according to claim 2 based on boost pressure signal, which is characterized in that the signal is put
Big unit includes amplifier U4, resistance R10, the third adjustment module that can change of division module and resistance value, the amplifier U4
Noninverting input connect the output end of the division module, the input terminal of the division module connects the admission pressure sensing
The signal output end of device, the resistance R10One end ground connection, the resistance R10The other end be separately connected the amplifier U4's
One end of reverse input end and the third adjustment module, the amplifier U4Output end be separately connected the third and adjust mould
The other end and automobile ECU of block.
9. the automobile control method according to claim 8 based on boost pressure signal, which is characterized in that the third tune
Section module includes the adjusting branch of N item parallel connection, and the M articles adjusting branch includes a switch KMWith a resistance rM, the switch KM
One end connect one end of the third adjustment module, the switch KMThe other end connect the resistance rMOne end, the electricity
Hinder rMThe other end connect the other end of the third adjustment module, wherein 0 < M≤N, and M and N are natural number.
10. the automobile control method according to claim 2 based on boost pressure signal, which is characterized in that the chip
Control unit includes processor and several fix multiple amplifying unit, and an input port of the processor connects air inlet pressure
The input terminal of the signal output end of force snesor, each fixed multiple amplifying unit connects an output end of the processor
Mouthful, the output end of each fixed multiple amplifying unit is all connected with automobile ECU.
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