CN109611194A - A kind of Electron pressurizing unit Motor torque loading method - Google Patents
A kind of Electron pressurizing unit Motor torque loading method Download PDFInfo
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- CN109611194A CN109611194A CN201811637888.4A CN201811637888A CN109611194A CN 109611194 A CN109611194 A CN 109611194A CN 201811637888 A CN201811637888 A CN 201811637888A CN 109611194 A CN109611194 A CN 109611194A
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- target torque
- pressurizing unit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
- F02B39/02—Drives of pumps; Varying pump drive gear ratio
- F02B39/08—Non-mechanical drives, e.g. fluid drives having variable gear ratio
- F02B39/10—Non-mechanical drives, e.g. fluid drives having variable gear ratio electric
-
- 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
- F02D41/0002—Controlling intake air
- F02D41/0007—Controlling intake air for control of turbo-charged or super-charged engines
-
- 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
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
A kind of Electron pressurizing unit Motor torque loading method, which comprises the following steps: S10: startup stage steps up the setting value of target torque during output power of motor is gradually increased；S20: when output power of motor reaches maximum, the target torque of setting reaches maximum value, then falls after rise and tends to be constant, and actual torque is gradually reduced and approaches to target torque during being somebody's turn to do；S30: after actual torque close to target torque to after reaching setting value, target torque it is synchronous with actual torque reduce, while between the two keep setting difference；S40: in the case where stable output power, actual torque is exported with steady state value, keeps the difference of setting between actual torque and target torque at this time.Set target torque curve is adjusted according to the operating status of real electrical machinery in the present invention, keeps the stability after electric motor starting in torque loading procedure high, power output is steady, and fluctuation is small, reduces security risk, strong to equipment protection.
Description
Technical field
The invention belongs to Electron pressurizing unit technical fields, are specifically related to a kind of Electron pressurizing unit Motor torque load side
Method.
Background technique
Electronic vehicle booster is a kind of electronic match product that can improve car engine ignition and combustion position,
It especially can be improved instantaneous burst power, stablize the revolving speed of engine, and also there is fuel-economizing, protect battery, reduce tail gas
The distinguishing features such as discharge.
Electron pressurizing unit during the work time, can torque to impeller motor and output power control, reach effect
The optimal purpose of rate.Electron pressurizing unit is adjusted by difference between built-in target torque, comparison actual torque and target torque
Whole output power of motor makes actual torque be intended to the mode of target torque to control output power of motor.
Currently, target torque set in Electron pressurizing unit remains at the torque under maximum speed state, at any time
Between propulsion, target torque do not change.Start-up course, with the raising of motor reality output revolving speed, actual torque is gradually
It reduces to be approached towards target torque, and finally in the stable torque range corresponding to 77%~79% maximum speed, because by electricity
Engine efficiency limitation is unable to reach target torque.This is the process that reality output revolving speed gradually tends towards stability, and motor is transported in this way
When row, power and efficiency are in maximum value at full capacity, this high-power to adapt to battery in the case of long-term use
The different operating conditions of electricity, during actual use can not also be chronically at efficiency highest point, motor, battery life be influenced big.
Meanwhile according to current torque loading method, approach what i.e. power was gradually increased towards target torque in actual torque
In the process, near power maximum point, increase and the torque output effect of itself due to power are acted on simultaneously so that function at this
Rate towards be higher than highest stabilizing power direction shake, moment exceed maximum power, it is this it is unstable be also a kind of security risk,
Influence equipment life.
Therefore, based on some problems present on, the present invention is to current Electron pressurizing unit Motor torque loading method
It is further studied.
Summary of the invention
For the above deficiency in the prior art, the present invention provides a kind of Electron pressurizing unit Motor torque loading method,
By dynamic change target torque curve setting, the stability of integral device is improved, avoids power overload, energy saving, peace
Quan Xinggao.
In order to solve the above-mentioned technical problem, the present invention is addressed by following technical proposals.
A kind of Electron pressurizing unit Motor torque loading method, which comprises the following steps: S10: startup stage,
During output power of motor is gradually increased, the setting value of target torque is stepped up；S20: it is reached in output power of motor
When to maximum, the target torque of setting reaches maximum value, then falls after rise and tends to be constant, should during actual torque be gradually reduced
And it is close to target torque；S30: after actual torque close to target torque to after reaching setting value, target torque and actual torque
It is synchronous to reduce, while the difference of setting is kept between the two；S40: in the case where stable output power, actual torque is with constant
Value output, keeps the difference of setting at this time between actual torque and target torque.
In the prior art, target torque set in Electron pressurizing unit is steady state value, and generally most ideal point, this makes
It obtains in actual torque loading procedure and is easy to produce the wild effect beyond maximum power, while output power is excessive and unstable
Bring security risk.In the application, when set target torque is according to difference after electric motor starting in Electron pressurizing unit
Between curve set by section state, be not steady state value.In S10~S40 step in the application: after motor just starts, function
Rate increases process, and the target torque of setting incrementally increases, and actual torque gradually reduces, and the two value is intended to draw close, and makes practical torsion
Reduction, the increase of motor speed of square are more steady, while in output power of motor maximum, target torque setting value has one
Reach maximum value then horse back fall after rise curve, the setting avoid in the prior art motor output rating moment exceed maximum work
The phenomenon that rate, improve motor operation stability, guarantee service life, later under stable output power state, actual torque by
Step reduces, and target torque is also synchronous to be reduced, and is tended towards stability, and stability is high in whole torque loading procedure, output-power fluctuation
Small, security risk is small, and service life of equipment is long.
Preferably, the value of the target torque to tend towards stability corresponds to motor at 55%~60% maximum turn in step S20
Torque under speed.Under the state, output power of motor is stablized, and avoids the excessive phenomenon of instantaneous power.
Preferably, the target torque under steady state is for motor under 75%~79% maximum (top) speed in step S40
Torque.Under the state, power output stability, Energy Efficiency Ratio height.
Preferably, the time of step S10 experience is 0.14 second~0.16 second, i.e., completed in the moment of starting, to motor
Protectiveness it is good, prevent output power moment excessive.
Preferably, the time of step S20 experience is 0.26 second~0.28 second, motor speed, which is stablized, during being somebody's turn to do increases,
Actual torque gradually reduces, and approaches to target torque value.
Preferably, in step S20, the target torque of setting reach maximum value then fall after rise it is experienced to steady state
Time is 0.04 second~0.06 second, which corresponds to the moment that output power of motor in the prior art exceeds maximum power, this
The change for passing through target torque value curve in step, avoids the generation of the phenomenon.
Preferably, the time of step S30 experience is 0.28 second~0.34 second, which is that output power of motor is stable
Under state, motor speed, which is stablized, to be increased, and actual torque, which is stablized, to be reduced, and overall stability is high.
Preferably, the setting reference factor of target torque includes battery capacity, automobile cruise state, automobile up slope shape
State, automobile downhill state etc., the target torque curve set according to different road conditions.
Preferably, the target torque curve being stored in the Electron pressurizing unit under more parts of different vehicle states, vehicle
The reference factor of state includes battery capacity, automobile cruise state, automobile up slope state, automobile downhill state etc., be can be convenient
Corresponding target torque curve is selected to be loaded according to actual road conditions.
Compared with prior art, add the invention has the following advantages: providing a kind of Electron pressurizing unit Motor torque
Support method is turned round after making electric motor starting wherein set target torque curve is adjusted according to the operating status of real electrical machinery
Stability in square loading procedure is high, and power output is steady, and fluctuation is small, reduces security risk, strong to equipment protection.
Detailed description of the invention
Fig. 1 m- torque responsive curve graph when being in the prior art.
Fig. 2 is torque control mode schematic diagram in the prior art.
Fig. 3 is torque in the prior art set point schematic diagram at full capacity.
Fig. 4 is the when m- torque responsive curve graph in the application.
Fig. 5 is the torque control mode schematic diagram in the application.
Fig. 6 is the torque set point schematic diagram at full capacity in the application.
Fig. 7 be in the application when m- torque responsive curve graph edited figure.
Specific embodiment
Present invention is further described in detail with specific embodiment with reference to the accompanying drawing.
Referring to Figure 1 to Figure 7, a kind of Electron pressurizing unit Motor torque loading method of the present invention, comprising the following steps:
S10: startup stage steps up the setting value of target torque during output power of motor is gradually increased；S20: in electricity
When machine output power reaches maximum, the target torque of setting reaches maximum value, then falls after rise and tends to be constant, should be practical in the process
Torque is gradually reduced and approaches to target torque；S30: after actual torque close to target torque to after reaching setting value, target turn round
Square is synchronous with actual torque to be reduced, while keeping the difference of setting between the two；S40: real in the case where stable output power
Border torque is exported with steady state value, keeps the difference of setting between actual torque and target torque at this time.
In S10~S40 step in above the application: after motor just starts, power increases process, and the target of setting is turned round
Square incrementally increases, and actual torque gradually reduces, and the two value is intended to draw close, and makes the reduction of actual torque, the increase of motor speed
It is more steady, while in output power of motor maximum, target torque setting value has an arrival maximum value then to return in horse back
The curve fallen, the setting avoid the phenomenon that motor output rating moment is beyond maximum power in the prior art, improve motor fortune
Row stability guarantees service life, and later under stable output power state, actual torque is gradually reduced, and target torque also synchronizes
Reduce, and tend towards stability, stability is high in whole torque loading procedure, and output-power fluctuation is small, and security risk is small, and equipment uses
Service life is long.
Wherein: in step S20, the value of the target torque to tend towards stability corresponds to motor under 55%~60% maximum (top) speed
Torque, output power of motor stablize, avoid the excessive phenomenon of instantaneous power.In step S40, the target under steady state is turned round
Torque of the square for motor under 75%~79% maximum (top) speed, power output stability, Energy Efficiency Ratio are high.Step S10 experience
Time is 0.14 second~0.16 second, on startup, prevents output power moment excessive.The time of step S20 experience is 0.26 second
~0.28 second.In step S20, the target torque set reach maximum value then fall after rise to the steady state time experienced as
0.04 second~0.06 second.The time of step S30 experience is 0.28 second~0.34 second, which avoids output power of motor moment
It is excessive.
In the application, the setting reference factor of target torque includes battery capacity, automobile cruise state, automobile up slope shape
State, automobile downhill state.In another scheme, the target that can be stored in Electron pressurizing unit under more parts of different vehicle states
Torque curve, the reference factor of vehicle-state include battery capacity, automobile cruise state, automobile up slope state, automobile downhill shape
State, it is convenient to load at any time according to the actual situation.
Fig. 1 is state corresponding to torque loading method in the prior art into Fig. 3, in Fig. 1, T7 to T0 points on ordinate
Torque corresponding when motor speed 70,000 RPM to 0 is not corresponded to, and abscissa is the time.
As can be seen that target torque value remains at T7 in the program in Fig. 1, propulsion at any time, target torque is not
It changes.In start-up course with the raising of motor reality output revolving speed, actual torque is gradually decreased with towards target torque
It approaches, and finally the stable torque T 5 corresponding to revolving speed 50,000 RPM~60,000 RPM, can not because being limited by electric efficiency between T6
Reach 70,000 RPM.Meanwhile during actual torque approaches that i.e. power is gradually increased towards target torque, near power P point,
Increase and the torque output effect of itself due to power act on simultaneously so that power is towards higher than highest stabilizing power at this
Direction concussion, moment exceeds maximum power, this unstable to cause some potential safety problems.
Fig. 2 show torque control mode schematic diagram in the prior art, can be seen that in Fig. 2 by reality output
The torque of revolving speed converts, and realizes the contrast difference of itself and target torque, and output torque demand.Meanwhile it feeding back to at full capacity
Curve controls torque output, and control mode therein is routine techniques.
Fig. 3 show torque in the prior art set point schematic diagram at full capacity, and wherein coordinate is torque setting point, from 0-
1, the part of 0.5-0.95 is intercepted in figure, when T7 to T0.5 respectively corresponds motor speed 70,000 RPM to 0.5 ten thousand RPM in abscissa
Corresponding torque, corresponding torque set point such as the following table 1 at full capacity in Fig. 3.
Table 1
It can be in existing method, all torque setting points of full load condition are 0.91 from Fig. 3 and table 1.The set point
It is the optimum state of motor corresponding to the highest point of power and efficiency.If reality output revolving speed torque conversion after not this 0.91
Set dotted state, curve at full capacity can be fed back to and be automatically adjusted to 0.91 state, this makes in electric motor starting, actual torque with
Target torque difference is too big, and the phenomenon that motor load can be caused excessive keeps its output power unstable.Motor is run in this way
When, power and efficiency are in maximum value at full capacity；It is this it is high-power can not adapt in the case of long-term use battery electricity
The different operating conditions of amount, during actual use can not can not also be chronically at efficiency highest point.
It is state corresponding to the torque loading method in embodiment a kind of in the application in fig. 4 to fig. 6, in Fig. 4, indulges and sit
It puts on T7 to T0 and respectively corresponds torque corresponding when motor speed 70,000 RPM to 0, abscissa is the time.It can be seen that in Fig. 4
The propulsion of target torque value always at any time is such as schemed to change, and during power increase, target torque is also quicklyd increase, and corresponds to
S10 step；Target torque stablizes torque condition at this when about reaching T4, while power reaches maximum value, to make power stability,
Adaptive minor swing occurs for target torque at this, corresponds to S20 step, the power stability of the Central Plains Fig. 1 scheme is avoided with this
The unstable concussion of preceding generation.
Simultaneously before T4 target torque the reduction increased with corresponding revolving speed, be more advantageous to actual torque and reach target torque
State responds sensitiveer.The lower power rating that the process power is passed through by the Central Plains Fig. 1 scheme power rise process, i.e.,
Avoid power overload.In the case where then keeping power constant, target torque, which remains unchanged, gives actual torque to approach sound
Between seasonable, correspond to S20 step.When to of about 0.4S, target torque reduces approaching with actual torque, cooperates with the increasing of revolving speed
Add, and reach stable state, corresponds to S30 step, and the state being finally reached in S40 step.
The torque control mode schematic diagram that Fig. 5 is shown in the application is compared with the control of the Central Plains Fig. 2 scheme, input
Target torque data are changed, while curve is changed to present a plurality of (three) by original one at full capacity, right respectively
Situations such as answering battery capacity sufficient, insufficient or according to user to vehicle use state (such as cruise, movement) requirement is corresponding
A plurality of family of curves at full capacity can be arranged in load condition, actual use process as the case may be.
Fig. 6 show the set point schematic diagram at full capacity of the torque in the application, and wherein ordinate is torque setting point, from 0-
1, the part of 0.5-1 has been intercepted in figure.T5.5 to T0.5 respectively corresponds 5.5 ten thousand RPM of motor speed to 0.5 ten thousand RPM in abscissa
When corresponding torque, corresponding torque set point such as the following table 2 at full capacity in Fig. 6.
Table 2
Shown in Fig. 6 and table 2, in 0.5 ten thousand RPM of low speed, corresponding torque setting point is 1, is more advantageous under the state
Revolving speed and power quickly increase, then with the increase of revolving speed, the reduction of actual torque, and target torque set point at full capacity
It is reduced in 0.5~0.6 section, avoids the fluctuation of output power, and eventual stabilities are 0.65 or so.
More than, in Fig. 3 and Fig. 6, in table 1 and table 2, the meaning of torque setting point value is as follows: the feelings of battery capacity abundance
Under condition, if motor power of battery in 5.5 ten thousand RPM be completely used for motor power increase can with output torque T5.5 (N*m), but
The output percentage of torque is 64.5% (i.e. torque setting point is 0.645) under artificial reduction revolving speed, and battery is made to have power
Rich degree, rich power can be spare or he uses；Similarly, motor is in 0.5 ten thousand RPM, if the power of battery is completely used for motor
Power increase can be with output torque T0.5 (N*m), which is engine startup, and the stage power is lower not to be reached
Maximum power (or rated power) state, and the impeller of motor needs to accelerate that compressed air is pushed to rotate, therefore the stage power institute
Corresponding torque will be exported all, not need to retain, corresponding to torque setting point be 100% (i.e. 1).
When m- torque responsive curve graph in this edited the application shown in Fig. 7, the following are detailed descriptions.
In the present embodiment, power of motor derives from battery (power line illustrated)；Target torque is that the MCU of motor is controlled
Adaptive adjustment curve built in module；Actual torque is the reality output torque curve of motor.
0-t1: such as figure 0-t1 period corresponding to the L section of power, P=UI, this section of time battery is supplied to motor
Power increases with the increase of electric current, until t1 moment power；It is T7 torque (i.e. motor speed 70,000 in 0 moment target power
RPM the torque corresponding to), target power at this moment is the maximum value of power of motor, and the actual power that feedback system measures arrive
For 0kw (i.e. torque is infinitely great, revolving speed 0RPM).Under the state, target torque is constantly in maximum rating in the prior art,
This will increase the load of battery during Motor torque release i.e. revolving speed increases；In the application, to be easier to realistic objective torque
Reach, so target torque increases towards actual torque value, reduces the gap of actual torque and target torque；With the propulsion of time
Stop increasing in t1 moment target torque, i.e., target power reaches maximum, and target power is steady state value after the t1 moment；With really
The release of border torque reduces, and actual speed is gradually increased, until the output power of t1 moment battery no longer increases, actual power P and
Cell output is steady state value, i.e. the power P stabilization state of value that reaches t1 following instant.
T1-t2: in the period, P is steady state value, the decline of the adjoint actual torque of the increase of actual speed when P is constant, directly
The t2 moment being closer to actual torque and target torque.
T2-t3: in the period, P is steady state value, the decline of the adjoint actual torque of the increase of actual speed when P is constant, together
When target torque also synchronous decline, until the t3 moment.
Torque enters stable state after the t3 moment.
The above, the present invention provides a kind of Electron pressurizing unit Motor torque loading methods, wherein set target
Torque curve is adjusted according to the operating status of real electrical machinery, keeps the stability after electric motor starting in torque loading procedure high,
Power output is steady, and fluctuation is small, reduces security risk, strong to equipment protection.
Protection scope of the present invention includes but is not limited to embodiment of above, and protection scope of the present invention is with claims
Subject to, replacement, deformation, the improvement that those skilled in the art that any pair of this technology is made is readily apparent that each fall within of the invention
Protection scope.
Claims (9)
1. a kind of Electron pressurizing unit Motor torque loading method, which comprises the following steps:
S10: startup stage steps up the setting value of target torque during output power of motor is gradually increased；
S20: when output power of motor reaches maximum, the target torque of setting reaches maximum value, then falls after rise and tends to be constant,
Actual torque is gradually reduced and approaches to target torque during being somebody's turn to do；
S30: after actual torque close to target torque to after reaching setting value, target torque it is synchronous with actual torque reduce, simultaneously
The difference of setting is kept between the two；
S40: in the case where stable output power, actual torque is exported with steady state value, at this time actual torque and target torque it
Between keep setting difference.
2. a kind of Electron pressurizing unit Motor torque loading method according to claim 1, which is characterized in that in step S20,
The value of the target torque to tend towards stability corresponds to torque of the motor under 55% ~ 60% maximum (top) speed.
3. a kind of Electron pressurizing unit Motor torque loading method according to claim 1, which is characterized in that in step S40,
Torque of the target torque for motor under 75% ~ 79% maximum (top) speed under steady state.
4. a kind of Electron pressurizing unit Motor torque loading method according to claim 1, which is characterized in that step S10 warp
The time gone through is 0.14 second ~ 0.16 second.
5. a kind of Electron pressurizing unit Motor torque loading method according to claim 1, which is characterized in that step S20 warp
The time gone through is 0.26 second ~ 0.28 second.
6. a kind of Electron pressurizing unit Motor torque loading method according to claim 5, which is characterized in that in step S20,
The target torque set reaches maximum value and then falls after rise to the steady state time experienced as 0.04 second ~ 0.06 second.
7. a kind of Electron pressurizing unit Motor torque loading method according to claim 1, which is characterized in that step S30 warp
The time gone through is 0.28 second ~ 0.34 second.
8. a kind of Electron pressurizing unit Motor torque loading method according to any one of claims 1 to 7, which is characterized in that
The setting reference factor of target torque includes battery capacity, automobile cruise state, automobile up slope state, automobile downhill state.
9. a kind of Electron pressurizing unit Motor torque loading method according to any one of claims 1 to 7, which is characterized in that
The target torque curve being stored under more parts of different vehicle states in the Electron pressurizing unit, the reference factor of vehicle-state include
Battery capacity, automobile cruise state, automobile up slope state, automobile downhill state.
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| CN201811637888.4A CN109611194A (en) | 2018-12-29 | 2018-12-29 | A kind of Electron pressurizing unit Motor torque loading method |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106460650A (en) * | 2013-12-27 | 2017-02-22 | 法雷奥空气管理英国有限公司 | Control of a motor in an electric supercharger |
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- 2018-12-29 CN CN201811637888.4A patent/CN109611194A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106460650A (en) * | 2013-12-27 | 2017-02-22 | 法雷奥空气管理英国有限公司 | Control of a motor in an electric supercharger |
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Application publication date: 20190412 |