CN108327504A - Automobile and its active damping controls method and apparatus - Google Patents
Automobile and its active damping controls method and apparatus Download PDFInfo
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- CN108327504A CN108327504A CN201710042594.6A CN201710042594A CN108327504A CN 108327504 A CN108327504 A CN 108327504A CN 201710042594 A CN201710042594 A CN 201710042594A CN 108327504 A CN108327504 A CN 108327504A
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- active damping
- target current
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
- B60R16/0232—Circuits relating to the driving or the functioning of the vehicle for measuring vehicle parameters and indicating critical, abnormal or dangerous conditions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K5/00—Arrangement or mounting of internal-combustion or jet-propulsion units
- B60K5/12—Arrangement of engine supports
- B60K5/1283—Adjustable supports, e.g. the mounting or the characteristics being adjustable
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Automation & Control Theory (AREA)
- Vibration Prevention Devices (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a kind of automobile and its active damping controls method and apparatus, the described method comprises the following steps：When automobile is in idling operation, rotating speed and the vibration period of engine are calculated by the crankshaft angles of engine, and calculates the vibrational state of engine, and target current value is calculated according to vibrational state；Judge whether engine is in fired state according to ignition coil signal；If it is, exporting the drive signal with operation time to driving circuit according to target current value and ignition coil signal；Driving circuit is according to drive signal to operating current of the actuator output with action time, and actuator works according to the operating current, to carry out active damping controls to automobile.To realize the active damping controls of automobile under idling operation, there is higher timeliness, and directly acquire the significant instant of vibration and noise reducing with ignition coil signal so that the action time of vibration damping control is more accurate, and effectiveness in vibration suppression is more effective.
Description
Technical field
The present invention relates to automobile technical field, more particularly to the active damping controls method of a kind of automobile, a kind of automobile
Active damping controls device and a kind of automobile with the device.
Background technology
With the progress of social technology, requirement of the people to comfort is higher and higher, and riding comfort has become weighing apparatus
Measure an important indicator of automotive performance, wherein the principal element for influencing riding comfort is automobile vibration, and automobile is caused to shake
Dynamic reason has very much, and engine luggine is worth drawing attention as one of the main reasons.Engine luggine is mainly by engine
Burning in cylinder and caused by the reciprocating motion of piston, which is transmitted to vehicle frame through Engine Mounting System, and then is transmitted to
In driver's cabin, the comfort taken is influenced.
In order to improve riding comfort, the suspension system of reasonable design is needed to achieve the purpose that decaying vibration.Suspension system
Development mainly experienced the process of rubber mounting, hydraulic mount and active engine mount, wherein rubber mounting is because of own material shadow
It rings, high and low temperature resistance is poor and not oil resistant；Hydraulic mount will appear dynamic liquefaction phenomenon in high frequency；Semi-active mount moves
Mechanical response is sensitive to structural parameters, needs stringent design requirement and manufacturing process.Therefore, it is necessary to increase to grind active engine mount
Study carefully.
Invention content
The application is made to the understanding of problems with and research based on inventor：
A kind of vibration Restrained Control algorithm is provided in the related technology, is the defeated of the sensor changed based on detection engine rotation
Go out, to deduce the vibrational state in the 1st period of engine luggine, while calculating cycle length and target current value waveform, and
The target current value waveform is sampled with the constant sampling period, to obtain the data acquisition system of target current value.When to drive
When dynamic portion's output target current value, the crank pulse interval based on regulation number speculates that the period in the 3rd period of engine luggine is long
Degree, and thus correct the data acquisition system of the target current value of acquisition.
Inventor has found：Above-mentioned control algolithm is the vibrational state and target current according to the 1st period of engine luggine
Value etc. is come vibrational state and the target current value etc. that calculated for the 3rd period, because without timeliness, can not achieve the reality to vibration
When adjust, and without propose idling operation under vibration damping control algolithm.
The present invention is directed to solve at least some of the technical problems in related technologies.For this purpose, the present invention
One purpose is to propose a kind of active damping controls method of automobile, can realize the active damping control of automobile under idling operation
System, and there is higher timeliness, and the significant instant of vibration and noise reducing is directly acquired with ignition coil signal so that vibration damping
The action time of control is more accurate, and effectiveness in vibration suppression is more effective.
It is another object of the present invention to propose a kind of active damping controls method of automobile.
A further object of the present invention is to propose a kind of automobile.
To achieve the above object, one aspect of the present invention embodiment proposes a kind of active damping controls method of automobile, packet
Include following steps：S1, when automobile is in idling operation, by detecting the crankshaft angles of engine to calculate the engine
Rotating speed and vibration period, and calculate according to the rotating speed of the engine and vibration period the vibrational state of the engine, and
Target current value is calculated according to the vibrational state of the engine；S2 obtains the ignition coil signal of the engine；S3, root
Judge whether the engine is in fired state according to the ignition coil signal of the engine；S4, if at the engine
In fired state, then according to drive of the ignition coil signal of the target current value and the engine output with operation time
The driving circuit that dynamic signal to drive ram works；S5, the driving circuit is according to the drive signal to the work
Dynamic operating current of the device output with action time, the actuator carry out work according to the operating current with action time
Make to carry out active damping controls to the automobile.
The active damping controls method of automobile according to the ... of the embodiment of the present invention passes through inspection when automobile is in idling operation
The crankshaft angles of the engine of survey calculate rotating speed and the vibration period of engine, and are extrapolated and started according to rotating speed and vibration period
The vibrational state of machine, and then target current value is calculated according to vibrational state.Then, engine is judged according to ignition coil signal
Whether fired state is in, if it is, the driving with operation time according to target current value and ignition coil signal output
For signal to driving circuit, driving circuit carries the operating current of action time, actuator according to drive signal to actuator output
It is worked according to the operating current, to carry out active damping controls to automobile.To realize the active of automobile under idling operation
Vibration damping controls, and has higher timeliness, and the significant instant of vibration and noise reducing is directly acquired with ignition coil signal, makes
The action time for obtaining vibration damping control is more accurate, and effectiveness in vibration suppression is more effective.
According to one embodiment of present invention, before step S1, the automobile is also detected by vehicle speed sensor
Speed is to judge whether the automobile is in idling operation.
According to one embodiment of present invention, when judging the engine not according to the ignition coil signal of the engine
When in fired state, timing is also carried out by timer, and when timing time reaches preset time, if the engine
It is still not in fired state, then returns to step S1-S3.
According to one embodiment of present invention, the active damping controls method of above-mentioned automobile further includes：Detect the drive
The output current of dynamic circuit is to obtain the operating temperature of the actuator；According to the operating temperature of the actuator to the target
Current value is adjusted.
According to one embodiment of present invention, the active damping controls method of above-mentioned automobile further includes：Pass through acceleration
Sensor detects the acceleration of the automobile to obtain the vibration information of the automobile；Judged according to the vibration information of the automobile
Whether the current vibration value of the automobile is more than default vibration threshold；If the current vibration value of the automobile is more than default vibration
Threshold value is then modified the target current value, so that the actuator is according to described in the adjusting of revised target current value
The dynamic stiffness of the active engine mount system of automobile, to carry out active damping controls to the automobile.
To achieve the above object, a kind of active damping controls device for automobile that another aspect of the present invention embodiment proposes,
Including：Vibration period computing module, the vibration period computing module are used for when automobile is in idling operation according to engine
Crankshaft angles calculate rotating speed and the vibration period of the engine；Vibrational state speculates that module, the vibrational state speculate mould
Block is used to calculate the vibration of the engine according to the rotating speed and vibration period of the engine when automobile is in idling operation
State；Target current computing module, the target current computing module are used to calculate mesh according to the vibrational state of the engine
Mark current value；Acquisition module, the acquisition module are used to obtain the ignition coil signal of the engine；First judgment module,
First judgment module is used to judge whether the engine is in fired state according to the ignition coil signal of the engine；
Drive control module and driving circuit, the drive control module are used for when the engine is in fired state according to
Drive signal of the ignition coil signal of target current value and the engine output with operation time to the driving circuit,
The driving circuit carries the operating current of action time according to the drive signal to actuator output, so as to the actuator
It is worked according to the operating current with action time to carry out active damping controls to the automobile.
The active damping controls device of automobile according to the ... of the embodiment of the present invention passes through inspection when automobile is in idling operation
The crankshaft angles of the engine of survey calculate rotating speed and the vibration period of engine, and are extrapolated and started according to rotating speed and vibration period
The vibrational state of machine, and then target current value is calculated according to vibrational state.Then, engine is judged according to ignition coil signal
Whether fired state is in, if it is, the driving with operation time according to target current value and ignition coil signal output
For signal to driving circuit, driving circuit carries the operating current of action time, actuator according to drive signal to actuator output
It is worked according to the operating current, to carry out active damping controls to automobile.To realize the active of automobile under idling operation
Vibration damping controls, and has higher timeliness, and the significant instant of vibration and noise reducing is directly acquired with ignition coil signal, makes
The action time for obtaining vibration damping control is more accurate, and effectiveness in vibration suppression is more effective.
According to one embodiment of present invention, the active damping controls device of above-mentioned automobile further includes：Second judges mould
Block, second judgment module are used to detect the speed of the automobile by vehicle speed sensor to judge whether the automobile is located
In idling operation.
According to one embodiment of present invention, first judgment module is additionally operable in the ignition lead according to the engine
When ring signal judges that the engine is not in fired state, timing is carried out by timer, and reach default in timing time
When the time, if the engine is still not in fired state, second judgment module if, rejudges whether automobile is in
Idling operation.
According to one embodiment of present invention, the active damping controls device of above-mentioned automobile further includes：Current detecting mould
Block, the current detection module is for detecting the output current of the driving circuit to obtain the operating temperature of the actuator；
Target current correcting module, the target current correcting module are used for the operating temperature according to the actuator to target electricity
Flow valuve is adjusted.
According to one embodiment of present invention, the active damping controls device of above-mentioned automobile further includes：Third judges mould
Block, the third judgment module are used to detect the acceleration of the automobile by acceleration transducer to obtain shaking for the automobile
Dynamic information, and judge whether the current vibration value of the automobile is more than default vibration threshold according to the vibration information of the automobile,
And when the current vibration value of the automobile is more than default vibration threshold by the target current correcting module to the mesh
Mark current value is modified, so that the actuator adjusts according to revised target current value the active engine mount system of the automobile
The dynamic stiffness of system, to carry out active damping controls to the automobile.
To achieve the above object, another aspect of the invention embodiment proposes a kind of automobile comprising above-mentioned automobile
Active damping controls device.
The automobile of the embodiment of the present invention can realize idling operation by the active damping controls device of above-mentioned automobile
The active damping controls of lower automobile, and there is higher timeliness, and directly acquire vibration and noise reducing with ignition coil signal
Significant instant so that vibration damping control action time it is more accurate, effectiveness in vibration suppression is more effective.
Description of the drawings
Fig. 1 is the flow chart of the active damping controls method of automobile according to the ... of the embodiment of the present invention；
Fig. 2 is the ignition coil signal of four cylinder engine according to an embodiment of the invention and the relationship of target current value
Figure；
Fig. 3 is the flow chart of the active damping controls method of automobile according to an embodiment of the invention；
Fig. 4 is the block diagram of the active damping controls device of automobile according to the ... of the embodiment of the present invention；
Fig. 5 is the block diagram of the active damping controls device of automobile according to an embodiment of the invention；
Fig. 6 is the block diagram of automobile according to the ... of the embodiment of the present invention.
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
The active damping controls method of the automobile proposed according to embodiments of the present invention, automobile described with reference to the accompanying drawings
Active damping controls device and automobile with the device.
Fig. 1 is the flow chart of the active damping controls method of automobile according to the ... of the embodiment of the present invention.As shown in Figure 1, the vapour
The active damping controls method of vehicle may include following steps：
S1, when automobile is in idling operation, by detect engine crankshaft angles with calculate engine rotating speed and
Vibration period, and according to the vibrational state of the rotating speed of engine and vibration period reckoning engine, and shaking according to engine
Dynamic state computation target current value.Wherein, the vibrational state of engine includes magnitude of vibrations and vibration frequency.
According to one embodiment of present invention, before step S1, the speed of automobile is also detected by vehicle speed sensor
To judge whether automobile is in idling operation.
Specifically, judge whether automobile has much in the method for idling operation, for example, can according to the speed of automobile,
Position signal of accelerator pedal signal, the position signal of clutch and gearbox etc. come judge automobile whether be in idling work
Condition specifically can be used determination method in the prior art, be not detailed here.
When judging that automobile is in idling operation, the bent axle of engine is obtained by the signal waveform that crankshaft sensor exports
Then angle calculates rotating speed and the vibration period of engine according to crankshaft angles.Wherein, the rotating speed of engine is equal to per minute
The vibration period of the number of turns of crank rotation, engine can calculate and obtain according to the number of cylinders of engine and the rotating speed of engine.With
For four cylinder engine, crank rotation two encloses in each working cycles of engine, and in each working cycles, four cylinders
Each primary according to 1342 sequentially fired explosion, i.e., engine often transfers from a team to another explosion twice, that is, engine often transfers from a team to another and vibrates two
Secondary, if the rotating speed of engine is 6000r/min, the vibration period of engine is 1/200s.
In the rotating speed for calculating engine and after the vibration period, using sampling method or can be tabled look-up according to the rotating speed of engine
Method obtains the vibrational state of engine at this time, and then according to the vibrational state of engine, is worked as using sampling method or look-up table
Preceding required target current value A.The specific prior art that may be used calculates acquisition.
S2 obtains the ignition coil signal of engine.
S3 judges whether engine is in fired state according to the ignition coil signal of engine.
S4 is exported if engine is in fired state according to the ignition coil signal of target current value and engine
The driving circuit that drive signal with operation time to drive ram works.
According to one embodiment of present invention, when judging that engine is not in igniting according to the ignition coil signal of engine
When state, timing is also carried out by timer, and when timing time reaches preset time, if engine is still not in igniting
State then returns to step S1-S3.Wherein, preset time can be demarcated according to actual conditions.
Specifically, ignition coil signal reflects the time break of cylinder in engine, and the vibration of engine is mainly produced
The gas burning being born in time of ignition cylinder pushes piston, so using ignition coil signal come control targe current value A's
Output time inhibits vibration more accurate and effective.
In practical applications, it can be communicated by the electronic control unit with engine, to obtain the igniting of engine
Coil signal judges whether engine is in fired state at this time according to ignition coil signal.If engine is not at this time
Fired state then enters wait state, and timer starts timing, and judges whether timing time exceeds the stipulated time, if exceeding
Stipulated time then repeats above-mentioned steps S1-S3；If without departing from the stipulated time, repeatedly step S3.If engine at this time
In fired state, then according to drive signal of the target current value A and ignition coil signal of the calculating output with operation time
To driving circuit.
It specifically, can be first according to the vibration period of target current value A and engine, using the side of pulse width modulation control
Formula obtains corresponding drive signal, then, generates driving pulse control signal according to ignition coil signal, passes through the pulse
Control signal deciding target current value A is input to the time of actuator.When target current value A is input to actuator, actuator
The electromagnetic induction device of itself is adjusted according to operating current, realizes the up and down motion of mechanical structure, to change actively
The damping of suspension and dynamic stiffness realize vibration and noise reducing function of the automobile under idling operation, improve the comfort level by bus of user.
By taking four cylinder engine as an example.Fig. 2 is the ignition coil signal of four cylinder engine according to an embodiment of the invention
With the relational graph of target current value.Wherein, q1 is the ignition coil signal of No. 1 cylinder, and q2 is the ignition coil letter of No. 3 cylinders
Number, q3 is the ignition coil signal of No. 4 cylinders, and q4 is the ignition coil signal of No. 2 cylinders, and E is the waveform of target current value, δ
For the phase delay of target current value.Figure it is seen that being output target current after the δ times after ignition coil
Value A, so that the effect of vibration and noise reducing is more effective.
S5, driving circuit according to drive signal to actuator output with action time operating current, actuator according to
Operating current with action time works to carry out active damping controls to automobile.
The active damping controls method of automobile according to the ... of the embodiment of the present invention, by crankshaft sensor and ignition coil signal etc.
The input signal that the already existing signal of automobile is controlled as vibration damping, to realize the active damping controls of automobile under idling operation,
Not only there is higher timeliness, but also the acquisition of signal is more convenient, better authenticity.Meanwhile with ignition coil signal
Directly acquire the significant instant of vibration and noise reducing control so that the action time of vibration damping control is more accurate, and effectiveness in vibration suppression is more effective.
In addition, in practical applications, since temperature can have an impact the effectiveness in vibration suppression of actuator, in order to reach more
Good effectiveness in vibration suppression, is also monitored the operating temperature of actuator, and be adjusted to target current value according to operating temperature.
According to one embodiment of present invention, the active damping controls method of above-mentioned automobile further includes：Detection driving electricity
The output current on road is to obtain the operating temperature of actuator；Target current value is adjusted according to the operating temperature of actuator.
Specifically, the resistance due to driving circuit coil can increase with the raising of temperature, it is possible to utilize
The output current of driving circuit calculates the resistance value of coil, then extrapolates the work temperature of actuator at this time according to the resistance value
Degree, finally extrapolates the working condition of actuator, and adjusted to target current value A according to working condition according to operating temperature
It is whole, and the dynamic stiffness of active engine mount is adjusted according to the current value after adjustment.To not generate this effectiveness in vibration suppression
Before, by the monitoring to actuator operating temperature, the size of the target current value at each moment is adjusted, eliminates temperature
Influence to actuator achievees the purpose that carry out active accommodation to effectiveness in vibration suppression, makes it have better effectiveness in vibration suppression.
After the dynamic stiffness to active engine mount is adjusted, if be not monitored effectiveness in vibration suppression, it can not judge to subtract
What kind of effectiveness in vibration suppression whether shake effectively and has, and if can be monitored to effectiveness in vibration suppression, and subtracted according to current
Effect of shaking is adjusted the target current value in next period, then the target current value obtained can more rationally, vibration damping effect
Fruit can be more preferable.
According to one embodiment of present invention, the active damping controls method of above-mentioned automobile further includes：Pass through acceleration
Sensor detects the acceleration of automobile to obtain the vibration information of automobile；Judge that the current of automobile shakes according to the vibration information of automobile
Whether dynamic value is more than default vibration threshold；If the current vibration value of automobile is more than default vibration threshold, to target current value
It is modified, so that actuator is according to the dynamic stiffness of the active engine mount system of revised target current value adjusting automobile, with right
Automobile carries out active damping controls.Wherein, default vibration threshold can be demarcated according to actual conditions.
Specifically, after the dynamic stiffness to active engine mount is adjusted, pushed away by the signal waveform of acceleration transducer
The current vibration values of automobile are calculated, are then compared with default vibration threshold.If vibration values are more than default vibration threshold,
Illustrate that effectiveness in vibration suppression is bad, target current revise signal exported according to the difference between vibration values and default vibration threshold at this time,
And target current value is modified according to target current revise signal, it is then outstanding to active according to revised target current value
The dynamic stiffness set is adjusted.
That is, after by target current value input driving circuit, using acceleration transducer to effectiveness in vibration suppression into
Row monitoring, for that cannot meet effectiveness in vibration suppression the case where feeds back, and to be modified to target current value, forms closed loop tune
It is whole, ensure the validity of effectiveness in vibration suppression.Also, when above two correcting mode acts synergistically, effectiveness in vibration suppression becomes apparent, into
And the comfort of seating can be greatly improved.
To make those skilled in the art be better understood upon the present invention, Fig. 3 is automobile according to an embodiment of the invention
Active damping controls method flow chart.As shown in figure 3, the active damping controls method of the automobile may include following steps：
S201 obtains the speed of automobile.
S202 judges whether automobile is in idling operation according to the speed of automobile.If so, executing step S203；If
It is no, return to step S201.
S203 calculates rotating speed and the vibration period of engine according to the crankshaft angles of engine.
S204 obtains the vibrational state of engine at this time using sampling method according to the rotating speed of engine, and then according to starting
The vibrational state of machine obtains current desired target current value using sampling method.
S205 obtains ignition coil signal.
S206, judges whether ignition coil signal is in ON, that is, judges whether engine is in fired state.If so,
Execute step S208；If not, executing step S207.
S207, judges whether timing signal is in ON.If so, return to step S201；If not, return to step S206.
S208 carries out Duty ratio control, to obtain required target current value to driving circuit.
S209 inputs target current value to driving circuit.
S210 detects the operating current of driving circuit.
S211 is adjusted target current value according to operating current.
S212 obtains the signal waveform of acceleration transducer.
S213 judges whether effectiveness in vibration suppression is eligible according to the signal waveform of acceleration transducer.If so, terminating this
The vibration and noise reducing of signal period；If not, executing step S214.
S214 is modified the target current value after adjustment according to effectiveness in vibration suppression.
In the above-described embodiments, with the already existing letter of the automobiles such as crankshaft sensor, ignition coil signal, vehicle speed sensor
Input signal number as vibration damping control, signal acquisition is more convenient, effective.Also, it is directly acquired with ignition coil signal
The significant instant of vibration and noise reducing control so that the action time of vibration damping control is more accurate, and effectiveness in vibration suppression is more effective.Meanwhile it will
The operating current of driving circuit carries out active accommodation as input signal, to target current value, and by the letter of acceleration transducer
Number it is used as feedback signal, closed loop adjustment is carried out to target current value so that signal processing is more rigorous effectively, can be preferably real
Existing vibration and noise reducing control achievees the effect that decaying vibration and reduces noise, improves the comfort level of user.
In conclusion the active damping controls method of automobile according to the ... of the embodiment of the present invention, when automobile is in idling operation
When, rotating speed and the vibration period of engine are calculated by the crankshaft angles of the engine of detection, and according to rotating speed and vibration period
The vibrational state of engine is extrapolated, and then target current value is calculated according to vibrational state.Then, according to ignition coil signal
Judge whether engine is in fired state, if it is, carrying work according to target current value and ignition coil signal output
For the drive signal at moment to driving circuit, driving circuit is electric to work of the actuator output with action time according to drive signal
Stream, actuator work according to the operating current, to carry out active damping controls to automobile.To realize vapour under idling operation
The active damping controls of vehicle, and there is higher timeliness and better effectiveness in vibration suppression.
Fig. 4 is the block diagram of the active damping controls device of automobile according to the ... of the embodiment of the present invention.As shown in figure 4,
The active damping controls device of the automobile includes：Vibration period computing module 11, vibrational state speculate module 12, target current fortune
Calculate module 13, acquisition module 14, the first judgment module 15, drive control module 16 and driving circuit 17.
Wherein, vibration period computing module 11 is based on the crankshaft angles when automobile is in idling operation according to engine
Calculate rotating speed and the vibration period of engine；Vibrational state speculates that module 12 is used for when automobile is in idling operation according to engine
Rotating speed and the vibration period calculate engine vibrational state；Target current computing module 13 is used for the vibration shape according to engine
State calculates target current value；Acquisition module 14 is used to obtain the ignition coil signal of engine；First judgment module 15 is used for root
Judge whether engine is in fired state according to the ignition coil signal of engine；Drive control module 16 is used at engine
When fired state extremely according to drive signal of the ignition coil signal of the target current value and engine output with operation time
Driving circuit 17, driving circuit 17 carries the operating current of action time according to drive signal to the output of actuator 18, to make
Dynamic device 18 works according to the operating current with action time to carry out active damping controls to automobile.
According to one embodiment of present invention, as shown in figure 5, the active damping controls device of above-mentioned automobile further includes：
Second judgment module 19, the second judgment module 19 are used to detect the speed of automobile whether to judge automobile by vehicle speed sensor
In idling operation.
According to one embodiment of present invention, the first judgment module 15 is additionally operable in the ignition coil signal according to engine
When judging that engine is not in fired state, timing is carried out by timer, and when timing time reaches preset time, if
Engine is still not in fired state, and the second judgment module 19 then rejudges whether automobile is in idling operation.
According to one embodiment of present invention, as shown in figure 5, the active damping controls device of above-mentioned automobile, further includes：
Current detection module 20 and target current correcting module 21.Current detection module 20 is used to detect the output current of driving circuit 17
To obtain the operating temperature of actuator 18；Target current correcting module 21 is used for the operating temperature according to actuator 18 to target electricity
Flow valuve is adjusted.
According to one embodiment of present invention, as shown in figure 5, the active damping controls device of above-mentioned automobile, further includes：
Third judgment module 22, third judgment module 22 are used to detect the acceleration of automobile by acceleration transducer to obtain automobile
Vibration information, and judge whether the current vibration value of automobile is more than default vibration threshold, Yi Ji according to the vibration information of automobile
The current vibration value of automobile is modified target current value by target current correcting module 21 when being more than default vibration threshold,
So that actuator 18 is according to the dynamic stiffness of the active engine mount system of revised target current value adjusting automobile, to be carried out to automobile
Active damping controls.
It should be noted that the undisclosed details in the active damping controls device of the automobile of the embodiment of the present invention, is asked
Details with reference to disclosed in the active damping controls method of the automobile of the embodiment of the present invention, which is not described herein again.
The active damping controls device of automobile according to the ... of the embodiment of the present invention passes through inspection when automobile is in idling operation
The crankshaft angles of the engine of survey calculate rotating speed and the vibration period of engine, and are extrapolated and started according to rotating speed and vibration period
The vibrational state of machine, and then target current value is calculated according to vibrational state.Then, engine is judged according to ignition coil signal
Whether fired state is in, if it is, the driving with operation time according to target current value and ignition coil signal output
For signal to driving circuit, driving circuit carries the operating current of action time, actuator according to drive signal to actuator output
It is worked according to the operating current, to carry out active damping controls to automobile.To realize the active of automobile under idling operation
Vibration damping controls, and has higher timeliness, and the significant instant of vibration and noise reducing is directly acquired using ignition coil signal, makes
The action time for obtaining vibration damping control is more accurate, and effectiveness in vibration suppression is more effective.
Fig. 6 is the block diagram of automobile according to the ... of the embodiment of the present invention.As shown in fig. 6, the automobile 1000 includes above-mentioned
Automobile active damping controls device 100.
Automobile according to the ... of the embodiment of the present invention can realize idling by the active damping controls device of above-mentioned automobile
The active damping controls of automobile under operating mode, and there is higher timeliness, and directly acquire vibration damping using ignition coil signal
The significant instant of noise reduction so that the action time of vibration damping control is more accurate, and effectiveness in vibration suppression is more effective.
In the description of the present invention, it is to be understood that, term "center", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on ... shown in the drawings or
Position relationship is merely for convenience of description of the present invention and simplification of the description, and does not indicate or imply the indicated device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；Can be that machinery connects
It connects, can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary in two elements
The interaction relationship of the connection in portion or two elements, unless otherwise restricted clearly.For those of ordinary skill in the art
For, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature can be with "above" or "below" second feature
It is that the first and second features are in direct contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is directly under or diagonally below the second feature, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiments or example.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (11)
1. a kind of active damping controls method of automobile, which is characterized in that include the following steps：
S1, when automobile is in idling operation, by detect engine crankshaft angles with calculate the engine rotating speed and
Vibration period, and calculate according to the rotating speed of the engine and vibration period the vibrational state of the engine, and according to institute
The vibrational state for stating engine calculates target current value；
S2 obtains the ignition coil signal of the engine；
S3 judges whether the engine is in fired state according to the ignition coil signal of the engine；
S4, if the engine is in fired state, according to the ignition coil of the target current value and the engine
The driving circuit that drive signal to drive ram of the signal output with operation time works；
S5, the driving circuit carry the operating current of action time, institute according to the drive signal to actuator output
Actuator is stated to be worked to carry out active damping controls to the automobile according to the operating current with action time.
2. the active damping controls method of automobile as described in claim 1, which is characterized in that before step S1, also pass through
Vehicle speed sensor detects the speed of the automobile to judge whether the automobile is in idling operation.
3. the active damping controls method of automobile as described in claim 1, which is characterized in that when the point according to the engine
When firewire ring signal judges that the engine is not in fired state, timing is also carried out by timer, and reach in timing time
When to preset time, if the engine is still not in fired state, S1-S3 is returned to step.
4. the active damping controls method of automobile as claimed in any one of claims 1-3, which is characterized in that further include：
The output current of the driving circuit is detected to obtain the operating temperature of the actuator；
The target current value is adjusted according to the operating temperature of the actuator.
5. the active damping controls method of automobile as claimed in any one of claims 1-3, which is characterized in that further include：
The acceleration of the automobile is detected to obtain the vibration information of the automobile by acceleration transducer；
Judge whether the current vibration value of the automobile is more than default vibration threshold according to the vibration information of the automobile；
If the current vibration value of the automobile is more than default vibration threshold, the target current value is modified, so as to
The actuator adjusts the dynamic stiffness of the active engine mount system of the automobile according to revised target current value, with to the vapour
Vehicle carries out active damping controls.
6. a kind of active damping controls device of automobile, which is characterized in that including：
Vibration period computing module, the vibration period computing module are used for when automobile is in idling operation according to engine
Crankshaft angles calculate rotating speed and the vibration period of the engine；
Vibrational state speculates that module, the vibrational state speculate module for starting according to when automobile is in idling operation
The rotating speed of machine and vibration period calculate the vibrational state of the engine；
Target current computing module, the target current computing module are used to calculate target according to the vibrational state of the engine
Current value；
Acquisition module, the acquisition module are used to obtain the ignition coil signal of the engine；
First judgment module, first judgment module are used to judge the engine according to the ignition coil signal of the engine
Whether fired state is in；
Drive control module and driving circuit, the drive control module be used for when the engine is in fired state according to
The ignition coil signal of the target current value and the engine exports the drive signal with operation time to the driving
Circuit, the driving circuit carries the operating current of action time according to the drive signal to actuator output, so as to described
Actuator works according to the operating current with action time to carry out active damping controls to the automobile.
7. the active damping controls device of automobile as claimed in claim 6, which is characterized in that further include：
Second judgment module, second judgment module are used to detect the speed of the automobile to judge by vehicle speed sensor
Whether the automobile is in idling operation.
8. the active damping controls device of automobile as claimed in claim 7, which is characterized in that first judgment module is also used
In when judging that the engine is not in fired state according to the ignition coil signal of the engine, carried out by timer
Timing, and when timing time reaches preset time, if the engine is still not in fired state, described second judges mould
Block then rejudges whether automobile is in idling operation.
9. the active damping controls device of the automobile as described in any one of claim 6-8, which is characterized in that further include：
Current detection module, the current detection module is for detecting the output current of the driving circuit to obtain the start
The operating temperature of device；
Target current correcting module, the target current correcting module are used for the operating temperature according to the actuator to the mesh
Mark current value is adjusted.
10. the active damping controls device of automobile as claimed in claim 9, which is characterized in that further include：
Third judgment module, the third judgment module are used to detect the acceleration of the automobile by acceleration transducer to obtain
The vibration information of the automobile is taken, and judges whether the current vibration value of the automobile is more than according to the vibration information of the automobile
Default vibration threshold, and corrected by the target current when the current vibration value of the automobile is more than default vibration threshold
Module is modified the target current value, so that the actuator adjusts the automobile according to revised target current value
Active engine mount system dynamic stiffness, with to the automobile carry out active damping controls.
11. a kind of automobile, which is characterized in that include the active damping controls of the automobile as described in any one of claim 6-10
Device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710042594.6A CN108327504B (en) | 2017-01-20 | 2017-01-20 | Automobile and active vibration damping control method and device thereof |
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| CN201710042594.6A CN108327504B (en) | 2017-01-20 | 2017-01-20 | Automobile and active vibration damping control method and device thereof |
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| CN113074045A (en) * | 2021-04-22 | 2021-07-06 | 东风柳州汽车有限公司 | Engine misfire diagnosis method, engine misfire diagnosis device, engine misfire diagnosis equipment and storage medium |
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|---|---|
| CN108327504B (en) | 2019-12-20 |
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