CN103362680B - A kind of vehicle engine control unit basis caliberating device - Google Patents
A kind of vehicle engine control unit basis caliberating device Download PDFInfo
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- CN103362680B CN103362680B CN201310342589.9A CN201310342589A CN103362680B CN 103362680 B CN103362680 B CN 103362680B CN 201310342589 A CN201310342589 A CN 201310342589A CN 103362680 B CN103362680 B CN 103362680B
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Abstract
The invention discloses a kind of vehicle engine control unit basis caliberating device, it includes the car load rotating hub for controlling engine speed, for controlling the rotating hub control module that described car load rotating hub is run, the control unit of engine electrically connected with described electromotor, and electrically connect with described control unit of engine and for the calibrated and calculated machine that control unit of engine is demarcated；Described vehicle engine control unit basis caliberating device also includes the E-Gas analog electrically connected with described electromotor, described E-Gas analog includes efp, and the E-Gas control module electrically connected with described efp.The present invention refer to E-Gas analog in staking-out work, it replace driver, improve performance accuracy and efficiency, decrease the labor intensity in calibration process, reduce cost of labor.
Description
Technical field
The present invention relates to technical field of automobile electronic control, particularly relate to a kind of vehicle motor and control single
Unit's basis caliberating device.
Background technology
Vehicle engine control unit (Engine Control Unit is called for short ECU) gathers electromotor fortune
Various parameters during row, are calculated under current operating state by the program in memorizer and nominal data
Good air inflow, ignition advance angle and distributive value, control electromotor and play best power performance, fuel-economy
Property and discharge performance.
Vehicle is in order to obtain optimal performance, it is necessary to carry out the running parameter after engine assembly vehicle
Actual match is demarcated, and the nominal data enabling ECU memorizer to calculate correctly reflects this vehicle motor
Practical situation under each operating mode.
Owing to engine operation process needing substantial amounts of nominal data, such as: the inflation of each operating mode cylinder
Efficiency, the basis angle of ignition, knock intensity and restriction, catalyst converter high temperature protection, Emission under Steady Operational Condition etc..
It is fixed that these data are required at the enterprising rower of car load, needs to demarcate along with electromotor new technique constantly uses
Data volume also get more and more, car load basis demarcate labor intensity and workload the most constantly increase.
During vehicle ECU basis is demarcated in prior art, following method is used to control electromotor
Steady state condition rower of going forward side by side is fixed, makes performance indications meet the requirements:
(1) utilize car load rotating hub to control car speed, turned by vehicle transmission system Transmission Ratio Control electromotor
Speed；
(2) driver manipulate throttle operate with engineer calibration software coordinate control engine load；
Operated by above-mentioned two steps, make electromotor work under stationary conditions, each parameter is marked
Surely target call is reached.
(3) demarcate exhaust emissions by ECE+EUDC discharge cycle and meet laws and regulations requirement.
The defect of prior art is:
(1) existing technical scheme needs driver and engineer to operate can to realize stable state work simultaneously
Condition point sets, and in calibration process, the working strength of driver and engineer is big, and fatiguability and efficiency are not
High.
(2) existing technical scheme is not directed to carry out for vehicle the vehicle safety monitoring of security monitoring
System, it is impossible to some are unfavorable for that the factor of vehicle ECU basis calibration process is (such as, in electromotor
Portion's temperature, combustion knock, vehicle pendulum shake, tail gas concentration etc.) monitor in real time, thus directly
Affect vehicle ECU basis calibration process.
Summary of the invention
It is an object of the invention to overcome deficiency of the prior art, it is provided that a kind of vehicle motor control
Unit basis caliberating device processed.
For achieving the above object, described vehicle engine control unit basis caliberating device, including for
Control the car load rotating hub of engine speed, for controlling the rotating hub control module that described car load rotating hub is run,
The control unit of engine electrically connected with described electromotor, and be electrically connected with described control unit of engine
That connect and for the calibrated and calculated machine that control unit of engine is demarcated；It is characterized in,
Described vehicle engine control unit basis caliberating device also includes electrically connecting with described electromotor
E-Gas analog, described E-Gas analog includes efp, and with institute
State the E-Gas control module of efp electrical connection.
Preferably, described E-Gas control module include main control module, the first divider resistance,
Two divider resistances and linear potentiometer；Wherein,
One end of described first divider resistance connects reference power source, the other end of described first divider resistance
Sequentially through described linear potentiometer and the second divider resistance ground connection, the first signal of described main control module
Input connects described linear potentiometer and the common port of the second divider resistance；Further,
Described main control module also includes that secondary signal input, the first signal output part and secondary signal are defeated
Go out end；Wherein, described secondary signal input makes the out-of-work urgency of efp for reception
Stop signal；Described main control module by described first signal output part and secondary signal outfan with described
Efp electrically connects, to control described efp action.
Preferably, described reference power source is+5V power supply.
Preferably, described vehicle engine control unit basis caliberating device also includes that vehicle safety is supervised
Ore-controlling Role, described vehicle safety monitoring system includes,
Monitoring control module；And all electrically connect with described monitoring control module,
Vehicular exhaust concentration measurement and control module, for detecting the tail gas concentration of vehicle；And for when described
Tail gas concentration sends alarm signal to described monitoring control module when exceeding tail gas concentration limit；
Vehicle temperature monitoring module, for detect the exhaust manifold temperature of electromotor, MAT,
Wire harness temperature, cooling water temperature and oil temperature；And for surpassing when any one in said temperature
Alarm signal is sent to described monitoring control module when crossing the temperature limit of its correspondence；
The anti-sway shake of vehicle and monitoring module of trying to shirk responsibility, be used for monitoring whether vehicle pendulum shake occurs and try to shirk responsibility；With
And for sending alarm signal when vehicle pendulum shake occurs or tries to shirk responsibility to described monitoring control module；
Vehicle safety signal monitoring module, is used for detecting engine speed, speed and throttle opening；
And for controlling mould when any one in above-mentioned parameter exceedes the limit value of its correspondence to described monitoring
Block sends alarm signal；And,
Vehicle pinking monitoring module, is used for monitoring whether electromotor pinking occurs；And when electromotor goes out
Alarm signal is sent to described monitoring control module during existing pinking；Further,
After described monitoring control module receives the time period that described alarm signal sets, if this warning
Signal does not eliminates, and the most described monitoring control module is sent out to described main control module and rotating hub control module respectively
Send described emergent stop signal, so that efp described in described master control module controls quits work, institute
State the described car load rotating hub of rotating hub control module control to quit work.
Preferably, the anti-sway shake of described vehicle and monitoring module of trying to shirk responsibility include for detecting whether vehicle goes out
Now pendulum shake or four limit switches tried to shirk responsibility, described four limit switches are separately positioned on vehicle chassis
At corner.
Preferably, described vehicle pinking monitoring module includes for detecting sending out of combustion knock signal
Engine knock sensor.
Preferably, described vehicle pinking monitoring module also includes for by described combustion knock signal
Amplify the speaker module of output.
Preferably, the temperature limit of described exhaust manifold temperature is 950 DEG C；Described inlet manifold temperature
The temperature limit of degree is 80 DEG C；The temperature limit of described wire harness temperature is 120 DEG C；Described coolant water temperature
The temperature limit of degree is 110 DEG C；The temperature limit of described oil temperature is 130 DEG C.
Preferably, the described time period set is as 15s.
The beneficial effects of the present invention is,
(1) in staking-out work, refer to E-Gas analog, it replace driver, improve
Performance accuracy and efficiency, decrease the labor intensity in calibration process, reduce cost of labor；
(2) in staking-out work, introduce vehicle safety monitoring system, can effectively monitor and be unfavorable for car
Factor (such as, internal engine temperature, combustion knock, the vehicle of ECU basis calibration process
Pendulum shake, tail gas concentration etc.), increase the accuracy of demarcation while adding safety.
Accompanying drawing explanation
Fig. 1 shows the principle side of vehicle engine control unit basis of the present invention caliberating device
Block diagram.
Fig. 2 shows the principle of the E-Gas control module of the E-Gas analog shown in Fig. 1
Block diagram.
Fig. 3 shows the basis demarcation of vehicle engine control unit basis caliberating device under steady state condition
The schematic flow sheet of method.
Fig. 4 shows the exhaust emissions of vehicle engine control unit basis caliberating device under steady state condition
The schematic flow sheet of scaling method.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, its
In the most same or similar label represent same or similar element or there is same or like merit
The element of energy.The embodiment described below with reference to accompanying drawing is exemplary, is only used for explaining this
Bright, and be not construed as limiting the claims.
Fig. 1 shows the principle side of vehicle engine control unit basis of the present invention caliberating device
Block diagram, as it is shown in figure 1, described vehicle engine control unit basis caliberating device includes for driving
The car load rotating hub 5 that the electromotor 3 of vehicle runs, for controlling the rotating hub that described car load rotating hub 5 is run
Control module 12, the control unit of engine 6 electrically connected with described electromotor 3, and with described
Motivation control unit 6 electrical connection and for calibrated and calculated that control unit of engine 6 is demarcated
Machine 15.
Especially, in order to make driver free during vehicle calibration, the present invention uses electronics
The mode of throttle simulation, the most described vehicle engine control unit basis caliberating device also includes with described
The E-Gas analog 14 of electromotor 3 electrical connection.
With reference to Fig. 2, described E-Gas analog 14 includes efp, and with described
The E-Gas control module of efp electrical connection.Wherein, the knot of described efp
The technology that structure is well known to those skilled in the art, therefore repeat no more in this article.Described E-Gas
Control module includes main control module the 141, first divider resistance, the second divider resistance and linear potentiometer
142.Wherein:
One end of described first divider resistance connects reference power source, and described reference power source is preferably+5V electricity
Source, the other end of described first divider resistance is sequentially through described linear potentiometer 142 and the second dividing potential drop
Resistance eutral grounding, the first signal input part C of described main control module 141 connects described linear potentiometer 142
Common port with the second divider resistance.Further, described main control module 141 also includes that secondary signal inputs
End C, the first signal output part A1 and secondary signal output terminals A 2；Wherein, described secondary signal is defeated
Enter to hold C to make the out-of-work emergent stop signal of efp for receiving；Described main control module 141
By described first signal output part A1 and secondary signal output terminals A 2 and described efp electricity
Connect, to control described efp action.
Above-mentioned linear potentiometer 142 is high-precision linear potentiometer, and its maximum resistance is Rmax, when
The resistance value of front position is R, and the resistance of the first divider resistance is R1, the resistance of described second divider resistance
Value is R2。
The operation principle of described E-Gas control module is: described main control module 141 utilizes vehicle
+ 5V the reference voltage of ECU output, as power supply, utilizes the conduct of linear potentiometer 142 to input, root
Calculate output two-way voltage signal according to input and simulate the control signal of described efp.Specifically,
Utilize high-precision linear potentiometer 142 be converted into efp control signal main logic such as
Under:
(1) current relative position of high-precision linear potentiometer is:
(2) voltage of described first signal output part A1 output is:
(3) voltage of described secondary signal output terminals A 2 output is:
Utilize mcu programming to realize above logic, can complete to control the function of efp,
And ECU will not report the sensor fault of efp, thus do not interfere with basis and demarcate work
Make.
Further, in order to effectively monitor the factor being unfavorable for vehicle ECU basis calibration process, make
Those factors do not interfere with the accuracy and efficiency of demarcation, and the present invention refer to vehicle safety monitoring system
System 17.This vehicle safety monitoring system 17 it also avoid the safety of the vehicle that non-driver is handled.
Specifically, with reference to Fig. 1, described vehicle safety monitoring system 17 includes monitoring control module, with
And the Vehicular exhaust concentration measurement and control module 16 all electrically connected with described monitoring control module, vehicle temperature
Monitoring module 7, the anti-sway shake of vehicle and monitoring module 8 of trying to shirk responsibility, vehicle safety signal monitoring module and vehicle
Pinking monitoring module 13.Wherein:
Vehicular exhaust concentration measurement and control module 16, for detecting the tail gas concentration of vehicle；And for working as institute
State when tail gas concentration exceedes tail gas concentration limit and send alarm signal to described monitoring control module.Here,
Described Vehicular exhaust concentration measurement and control module 16 includes tail gas concentration sensor 9.
Vehicle temperature monitoring module 7, for detecting the exhaust manifold temperature of electromotor 3, inlet manifold
Temperature, wire harness temperature, cooling water temperature and oil temperature；And any for when in said temperature
Alarm signal is sent to described monitoring control module during one temperature limit exceeding its correspondence.Here,
The temperature limit of described exhaust manifold temperature is preferably 950 DEG C；The temperature limit of described MAT
Value is preferably 80 DEG C；The temperature limit of described wire harness temperature is preferably 120 DEG C；Described cooling water temperature
Temperature limit be preferably 110 DEG C；The temperature limit of described oil temperature is preferably 130 DEG C.
The anti-sway shake of vehicle and monitoring module 8 of trying to shirk responsibility, be used for monitoring whether vehicle pendulum shake occurs and try to shirk responsibility；
And for sending alarm signal when vehicle pendulum shake occurs or tries to shirk responsibility to described monitoring control module.This
In, the anti-sway shake of described vehicle and monitoring module 8 of trying to shirk responsibility include for detect vehicle whether occur pendulum shake or
Four limit switches tried to shirk responsibility, described four limit switches are separately positioned at the corner of vehicle chassis.
Vehicle safety signal monitoring module, is used for detecting engine speed, speed and throttle opening；
And for controlling mould when any one in above-mentioned parameter exceedes the limit value of its correspondence to described monitoring
Block sends alarm signal.
Vehicle pinking monitoring module 13, is used for monitoring whether electromotor 3 pinking occurs；And when starting
Machine 3 occurs sending alarm signal to described monitoring control module during pinking.Here, described vehicle pinking
Monitoring module 13 includes the engine knock sensors of the detonation signal for detecting electromotor 3.Enter one
Step ground, in order to make engineer understand the pinking situation of electromotor 3, described vehicle pinking monitoring mould in real time
Block 13 the most also includes the speaker module for the detonation signal of described electromotor amplifies output.
After described monitoring control module receives described alarm signal 15s, if this alarm signal does not disappears
Removing, the most described monitoring control module is respectively to described main control module 141 and described rotating hub control module 12
Send described emergent stop signal, so that described main control module 141 controls described efp and stops work
Making, the most described rotating hub control module 12 controls car load rotating hub 5 and quits work.
The basis of vehicle engine control unit basis of the present invention described further below caliberating device
Scaling method:
The main purpose that vehicle engine control unit basis is demarcated be demarcate engine speed be 800 turns/
Minute, 1200 revs/min, 1600 revs/min ... 6400 revs/min, electromotor 3 load (foundation
Calibrating parameters is different, and load can be in-cylinder pressure, throttle opening, admission pressure and pressure at expulsion
Ratios etc. represent) it is 5%, 10%, 15% ... 15*20=300 steady state condition point under 100% load
Under operating mode, each of control unit of engine 6 is run and controls parameter and demarcate so that car load
Various performance indications (dynamic property of such as vehicle, economy, discharge and ilities) conform to
Ask.Each performance parameters under different VVT angle is also demarcated for VVT electromotor 3.
What deserves to be explained is, in the caliberating device of described vehicle engine control unit basis, perform module
(such as electromotor 3, car load rotating hub 5, control unit of engine 6, vehicle temperature monitoring module 7,
Emission analyzer 2 etc.) it is all located at environment storehouse 19；Control module (such as rotating hub control module 12, mark
Determine computer 15, analyser computer etc.) it is all located at control room 18.
Fig. 3 shows the basis demarcation of vehicle engine control unit basis caliberating device under steady state condition
The schematic flow sheet of method, as it is shown on figure 3, described basis scaling method comprises the following steps:
(1) vehicle is fixed in car load rotating hub 5, connects knock sensor signal to speaker module；Will
The wire harness connector of E-Gas control module is connected with efp, and confirms that initial signal is
0；The control unit of engine 6 changing vehicle motor 3 is developing ECU, and is allowed to and demarcates
Computer 15 is connected；Make vehicle temperature monitoring module 7 be connected with calibrated and calculated machine 15, and configure
Calibrating parameters and variable；
(2) car load rotating hub 5 is set to constant speed mode；
(3) run vehicle, controlled the running speed of car load rotating hub 5 by rotating hub control module 12,
And then by the rotating speed of vehicle transmission system control electromotor 3, so that the turn up of electromotor 3 is to expectation
Engine speed；
(4) adjust E-Gas analog 14, make electromotor 3 load need to expectation calibrating parameters
The load value wanted；
(5) demarcate under this operating mode, the operation of control unit of engine 6 and control parameter；
(6) judge that operation and the control parameter of the control unit of engine 6 of current working point are whole
Demarcation completes, if demarcated, then regulation E-Gas analog 14 changes the negative of electromotor 3
Lotus, thus to operation corresponding to other load point and control parameter under above-mentioned desired engine speed
Demarcate；
(7) judge whether each operation and control parameter are marked under current described desired engine speed
Surely completing, if demarcated, then regulation rotating hub control module 12, makes engine speed reach next
The individual rotating speed point needing to demarcate；
(8) judge that each calibrating parameters of all engine speed and load point the most all completes, if
Complete, then car load ECU has demarcated on basis.
The tail gas of vehicle engine control unit basis of the present invention described further below caliberating device
Discharge scaling method:
Under environmental conservation overall background, the more and more important of changes persuing is wanted in emission from vehicles, according to
GB18352-2005 rules and regulations emissions profile operating mode, calibrating parameters make vehicle 15km/h, 32km/h,
The exhaust emissions of vehicle under 50km/h, 70km/h, 100km/h and 120km/h steady state ride operating mode,
Making catalyst converter transformation efficiency reach the highest, CO, HC and NOX pollutant discharge amount is minimum.
Fig. 4 shows the exhaust emissions of vehicle engine control unit basis caliberating device under steady state condition
The schematic flow sheet of scaling method, as shown in Figure 4, described vehicle engine control unit basis is demarcated
The exhaust emissions scaling method of device comprises the following steps:
(1) vehicle is fixed in car load rotating hub 5, connects emission analyzer 2, gather before catalyst converter and
Tail gas after catalyst converter, utilizes analyser computer 11 to analyze this exhaust gas component at two；Meanwhile, will
The wire harness connector of E-Gas control module is connected with efp, and confirms that initial signal is
0；The control unit of engine 6 changing vehicle motor 3 is developing ECU, and is allowed to and demarcates
Computer 15 is connected；Make vehicle temperature monitoring module 7 be connected with calibrated and calculated machine 15, and configure
Calibrating parameters and variable；
(2) car load rotating hub 5 is set to road loading mode, it is desirable to load resistance coefficient；
(3) gear is set according to the gear of GB18352-2005 laws and regulations requirement, runs vehicle；
(4) utilize E-Gas analog 14 that the speed of vehicle is accurately set；
(5) by checking analysis result that emission analyzer 2 measures in real time and calculating transformation efficiency, adjust
The nominal data of motivation of haircuting 3, the transformation efficiency making catalyst converter is the highest；
(6) if the exhaust emissions of vehicle meets the requirements under this speed point, E-Gas is utilized to simulate
Device 14 arranges the speed of other vehicle；
(7) use said method in step (4)～(6), demarcated 15km/h, 32km/h,
The emission from vehicles of 50km/h, 70km/h, 100km/h and 120km/h speed point, makes vehicle
Exhaust emissions minimum.
The structure of the present invention, feature and effect effect are described in detail above according to graphic shown embodiment
Really, the foregoing is only presently preferred embodiments of the present invention, but the present invention does not implements to limit shown in drawing
Scope, every change made according to the conception of the present invention, or it is revised as the equivalence enforcement of equivalent variations
Example, still without departing from description with diagram contained spiritual time, all should be within the scope of the present invention.
Claims (8)
1. a vehicle engine control unit basis caliberating device, including for controlling the whole of engine speed
Car rotating hub, for controlling the rotating hub control module that described car load rotating hub is run, is electrically connected with described electromotor
The control unit of engine connect, and electrically connect with described control unit of engine and for starting
Machine control unit carries out the calibrated and calculated machine demarcated；It is characterized in that:
Described vehicle engine control unit basis caliberating device also includes electrically connecting with described electromotor
E-Gas analog, described E-Gas analog includes efp, and with institute
State the E-Gas control module of efp electrical connection；
Described E-Gas control module includes main control module, the first divider resistance, the second divider resistance
And linear potentiometer；Wherein,
One end of described first divider resistance connects reference power source, the other end of described first divider resistance
Sequentially through described linear potentiometer and the second divider resistance ground connection, the first signal of described main control module
Input connects described linear potentiometer and the common port of the second divider resistance；Further,
Described main control module also includes that secondary signal input, the first signal output part and secondary signal are defeated
Go out end；Wherein, described secondary signal input makes the out-of-work urgency of efp for reception
Stop signal；Described main control module by described first signal output part and secondary signal outfan with described
Efp electrically connects, to control described efp action.
Vehicle engine control unit basis the most according to claim 1 caliberating device, it is characterised in that:
Described reference power source is+5V power supply.
Vehicle engine control unit basis the most according to claim 1 caliberating device, it is characterised in that:
Described vehicle engine control unit basis caliberating device also includes vehicle safety monitoring system, described car
Safety monitoring system includes,
Monitoring control module；And all electrically connect with described monitoring control module,
Vehicular exhaust concentration measurement and control module, for detecting the tail gas concentration of vehicle；And for when described
Tail gas concentration sends alarm signal to described monitoring control module when exceeding tail gas concentration limit；
Vehicle temperature monitoring module, for detect the exhaust manifold temperature of electromotor, MAT,
Wire harness temperature, cooling water temperature and oil temperature；And for surpassing when any one in said temperature
Alarm signal is sent to described monitoring control module when crossing the temperature limit of its correspondence；
The anti-sway shake of vehicle and monitoring module of trying to shirk responsibility, be used for monitoring whether vehicle pendulum shake occurs and try to shirk responsibility；With
And for sending alarm signal when vehicle pendulum shake occurs or tries to shirk responsibility to described monitoring control module；
Vehicle safety signal monitoring module, is used for detecting engine speed, speed and throttle opening；
And for controlling mould when any one in above-mentioned parameter exceedes the limit value of its correspondence to described monitoring
Block sends alarm signal；And,
Vehicle pinking monitoring module, is used for monitoring whether electromotor pinking occurs；And when electromotor goes out
Alarm signal is sent to described monitoring control module during existing pinking；Further,
After described monitoring control module receives the time period that described alarm signal sets, if this warning
Signal does not eliminates, and the most described monitoring control module is sent out to described main control module and rotating hub control module respectively
Send described emergent stop signal, so that efp described in described master control module controls quits work, institute
State the described car load rotating hub of rotating hub control module control to quit work.
Vehicle engine control unit basis the most according to claim 3 caliberating device, it is characterised in that:
The anti-sway shake of described vehicle and monitoring module of trying to shirk responsibility include for detecting whether vehicle pendulum shake occurs or try to shirk responsibility
Four limit switches, described four limit switches are separately positioned at the corner of vehicle chassis.
Vehicle engine control unit basis the most according to claim 3 caliberating device, it is characterised in that:
Described vehicle pinking monitoring module includes the combustion knock sensing for detecting combustion knock signal
Device.
Vehicle engine control unit basis the most according to claim 5 caliberating device, it is characterised in that:
Described vehicle pinking monitoring module also includes the sound equipment for described combustion knock signal amplifies output
Module.
Vehicle engine control unit basis the most according to claim 3 caliberating device, it is characterised in that:
The temperature limit of described exhaust manifold temperature is 950 DEG C；The temperature limit of described MAT is
80℃；The temperature limit of described wire harness temperature is 120 DEG C；The temperature limit of described cooling water temperature is
110℃；The temperature limit of described oil temperature is 130 DEG C.
Vehicle engine control unit basis the most according to claim 3 caliberating device, it is characterised in that:
The described time period set is as 15s.
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| CN106014633B (en) * | 2016-05-20 | 2018-10-26 | 中国第一汽车股份有限公司 | Engine system parts diagnostic tool case and diagnosis detecting method |
| CN110608105B (en) * | 2018-06-15 | 2021-11-23 | 上海汽车集团股份有限公司 | Automatic calibration method and device for inflation efficiency |
| CN112946387A (en) * | 2021-01-29 | 2021-06-11 | 中国重汽集团济南动力有限公司 | Automatic calibration system for whole vehicle engine |
| CN113898479A (en) * | 2021-09-30 | 2022-01-07 | 潍柴重机股份有限公司 | Method for verifying engine parameter protection measures |
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