CN106597902A - Vehicle control system and control method - Google Patents
Vehicle control system and control method Download PDFInfo
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- CN106597902A CN106597902A CN201611209430.XA CN201611209430A CN106597902A CN 106597902 A CN106597902 A CN 106597902A CN 201611209430 A CN201611209430 A CN 201611209430A CN 106597902 A CN106597902 A CN 106597902A
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- pwm
- pwm wave
- ripples
- electric putter
- producers
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/84—Generating pulses having a predetermined statistical distribution of a parameter, e.g. random pulse generators
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/24—Automatic control of frequency or phase; Synchronisation using a reference signal directly applied to the generator
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Abstract
The invention provides a vehicle control system and control method. The system comprises a controller, a first PWM (Pulse Width Modulation) wave generator, and a second PWM (Pulse Width Modulation) wave generator. The method comprises the following steps: when the controller receives the control signal either to open or close the vehicle trunk door, transmitting the output signals to the first PWM wave generator and the second PWM generator; according to the first PWM wave outputted from the first PWM wave generator, controlling a first motor driving module to drive a first electric push rod to act; and according to the second PWM wave outputted from the second PWM wave generator, controlling a second motor driving module to drive a second electric push rod to act. In the invention, at the same time, the frequencies of the first PWM wave and the second PWM wave are different ones; and their harmonic waves at various times also vary from each other; therefore, harmonic resonance does not occur, thus avoiding the enhancement of interference between the two motor drive modules due to the harmonic superposition. And external electromagnetic interference also weakens.
Description
Technical field
The present invention relates to field of vehicle control, is to be related to a kind of vehicle control system and control method in particular.
Background technology
At present, the intelligent opening of automobile trunk chamber door or closing drives first generally by the first motor drive module
Electric putter and the second motor drive module drive the mode of the second electric putter to realize, wherein, realizing automobile trunk chamber door intelligence
During being turned on or off, to make two electric putters keep strokes, by way of using pwm power controlled motor come
Ensure that providing identicals to two electric putters drives power, to reduce the inconsistent mill come to automobile belt of two electric putter actions
Damage.
Inventor has found through research, due to there is harmonic wave in PWM ripples, according to the mode of pwm power controlled motor, then
To between two motors harmonic wave can be brought to disturb, while electromagnetic radiation can be produced externally so that in-car electromagnetic environment is deteriorated, interference
Strengthen, so as to affect the normal realization of circuit function so that Consumer's Experience is deteriorated, and even results in the generation of security incident.
The content of the invention
The technical problem to be solved is to provide a kind of vehicle control system and control method, is driving electric putter
During action, the harmonic wave interference between two motors and the electromagnetic radiation for externally producing can be reduced.
A kind of vehicle control system, including：Controller, a PWM wave producers and the 2nd PWM wave producers；
The controller, for when the control signal for being turned on or off to trunk door is received, dividing
PWM wave output signals are not sent to a PWM wave producers and the 2nd PWM wave producers；
The first PWM wave producers, for according to the PWM wave output signals for receiving, exporting a PWM ripples, make
Obtain the controller and control the first electric putter action of driving of the first motor drive module according to a PWM ripples, after realization
For being turned on or off for chamber door；
The 2nd PWM wave producers, for according to the PWM wave output signals for receiving, exporting the 2nd PWM ripples, make
Obtain the controller and control the second electric putter action of driving of the second motor drive module according to the 2nd PWM ripples, after realization
For being turned on or off for chamber door；
Wherein, the of a PWM ripples of PWM wave producers output and the 2nd PWM wave producers output
Two PWM ripples are to carry out simultaneously, during first electric putter and the second electric putter action is driven, described first
PWM ripples are identical with the average frequency of the 2nd PWM ripples, and in a PWM ripples described in synchronization and the 2nd PWM ripples
Frequency is different.
Above-mentioned system, it is preferred that also include：Position detecting module；
The position detecting module, for when first electric putter and second electric putter start action, in real time
The position signalling of the trunk door is gathered, and the position signalling is sent to into the controller；
The controller, for according to the position signalling for receiving, judging whether the trunk door reaches default
Position；When the trunk door reaches default position, control a PWM wave producers and the 2nd PWM ripples are sent out
Raw device stops output PWM ripples, to stop driving first electric putter and the second electric putter action.
Above-mentioned system, it is preferred that a PWM wave producers export by way of frequency hopping or frequency sweep
One PWM ripples.
Above-mentioned system, it is preferred that the 2nd PWM wave producers export by way of frequency hopping or frequency sweep
Two PWM ripples.
Above-mentioned system, it is preferred that the controller includes：First pseudo random number module and the second pseudo random number module；
The first pseudo random number module, for when data output instruction is received, constantly output pseudo random number to be to institute
State a PWM wave producers；The pseudo random number that the first PWM wave producers are received according to it, adjusts the PWM wave frequencies of its output
Rate；
The second pseudo random number module, for when data output instruction is received, constantly output pseudo random number to be to institute
State the 2nd PWM wave producers；The pseudo random number that the 2nd PWM wave producers are received according to it, adjusts the PWM wave frequencies of its output
Rate.
Above-mentioned system, it is preferred that the position detecting module includes：First position detector unit and the second position are detected
Unit；
The first position detector unit is integrated in inside first electric putter with first motor drive module；
The second position detector unit is integrated in inside second electric putter with second motor drive module.
Above-mentioned system, it is preferred that the controller, a PWM wave producers and the 2nd PWM wave producers and described
One motor drive module and second motor drive module are integrated in first circuit board.
Above-mentioned system, it is preferred that the controller, a PWM wave producers and the 2nd PWM wave producers and institute's rheme
Put detection module, the first motor drive module and the second motor drive module to be integrated in second circuit board.
A kind of control method for vehicle, methods described is applied to vehicle control system, including：Controller, a PWM ripples occur
Device and the 2nd PWM wave producers；Methods described includes：
When the controller receives the control signal for being turned on or off to trunk door, respectively to institute
State a PWM wave producers and the 2nd PWM wave producers send PWM wave output signals, so that a PWM ripples occur
Device exports a PWM ripples and the 2nd PWM wave producers export the 2nd PWM ripples；Wherein, described in synchronization first
PWM ripples are different with the frequency of the 2nd PWM ripples；
According to the PWM ripples that a PWM wave producers are exported, control the first motor drive module driving first is electric
Putter action and the 2nd PWM ripples exported according to the 2nd PWM wave producers, the second motor drive module of control drives the
Two electric putter actions, to realize being turned on or off for trunk door.
Above-mentioned method, it is preferred that also include：
When first electric putter and second electric putter start action, the trunk door is obtained in real time current
Position signalling；
According to the position signalling, judge whether the trunk door reaches default position；
When the trunk door reaches default position, a PWM wave producers and the 2nd PWM ripples are controlled
Generator stops output PWM ripples, to stop driving first electric putter and the second electric putter action.
Compared with prior art, the present invention includes advantages below：
The invention provides a kind of vehicle control system, including controller, a PWM wave producers and the 2nd PWM ripples
Raw device；The controller, for when the control signal for being turned on or off to trunk door is received, respectively to
The first PWM wave producers and the 2nd PWM wave producers send PWM wave output signals；The first PWM ripples occur
Device, for according to the PWM wave output signals for receiving, exporting a PWM ripples so that the controller is according to described first
PWM ripples control the first motor drive module and drive the first electric putter action, to realize being turned on or off for trunk door；It is described
2nd PWM wave producers, for according to the PWM wave output signals for receiving, exporting the 2nd PWM ripples so that the controller
The second motor drive module is controlled according to the 2nd PWM ripples and drive the second electric putter action, to realize the unlatching of trunk door
Or close；Wherein, the of a PWM ripples of PWM wave producers output and the 2nd PWM wave producers output
Two PWM ripples are to carry out simultaneously, during first electric putter and the second electric putter action is driven, described first
PWM ripples are identical with the average frequency of the 2nd PWM ripples, to ensure first electric putter and the second electric putter action
Concordance；And, the frequency of its each harmonic different with the frequency of the 2nd PWM ripples in a PWM ripples described in synchronization
It is different, therefore harmonic resonance will not be caused, so as to avoids the interference between two motor drive modules because harmonic wave is stacked
Plus and strengthen, and external electromagnetic interference also can weaken.
The invention provides a kind of control method for vehicle, methods described is applied to vehicle control system, including：Controller,
First PWM wave producers and the 2nd PWM wave producers；Methods described includes：When the controller is received for boot
During the control signal that door is turned on or off, respectively to a PWM wave producers and the 2nd PWM wave producers
Send PWM wave output signals；According to the PWM ripples that a PWM wave producers are exported, the first motor drive module is controlled
The 2nd PWM ripples for driving the first electric putter action and exporting according to the 2nd PWM wave producers, control the second Motor drive
Module drive the second electric putter action, during electric putter action is driven, in synchronization, a PWM ripples and institute
The frequency for stating the 2nd PWM ripples is different, and the frequency of its each harmonic is also different, therefore will not cause harmonic resonance, so as to keep away
The interference exempted between two motor drive modules is strengthened because harmonic wave is superimposed, and external electromagnetic interference also can weaken.
Certainly, the arbitrary product for implementing the present invention it is not absolutely required to while reaching all the above advantage.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Inventive embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, can be with basis
The accompanying drawing of offer obtains other accompanying drawings.
A kind of structural representation of vehicle control system that Fig. 1 is provided for the present invention；
A kind of structural representation for applying the vehicle control system in automobile trunk chamber door that Fig. 2 is provided for the present invention；
A kind of another structural representation for applying the vehicle control system in automobile trunk chamber door that Fig. 3 is provided for the present invention
Figure；
A kind of another structural representation for applying the vehicle control system in automobile trunk chamber door that Fig. 4 is provided for the present invention
Figure；
A kind of method flow diagram of control method for vehicle that Fig. 5 is provided for the present invention；
A kind of another method flow diagram of control method for vehicle that Fig. 6 is provided for the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
With reference to Fig. 1, a kind of structural representation of vehicle control system provided in an embodiment of the present invention is shown, the present invention is carried
For control system can be applicable in the structures such as automotive tailgate, engine engine lid, side door, sliding door or sliding window；Such as
Shown in Fig. 2, for a kind of structural representation for applying the vehicle control system in automobile trunk chamber door that the present invention is provided；The control
System processed includes：Controller 101, a PWM wave producers 102 and the 2nd PWM wave producers 103；
The controller 101, for receiving the control signal for being turned on or off to trunk door 108
When, send PWM wave output signals to a PWM wave producers 102 and the 2nd PWM wave producers 103 respectively；
The first PWM wave producers 102, for according to the PWM wave output signals for receiving, exporting a PWM ripples,
So that the controller 101 drives the first electric putter 106 to move according to PWM ripples control the first motor drive module 104
Make, to realize being turned on or off for trunk door 108；
The 2nd PWM wave producers 103, for according to the PWM wave output signals for receiving, exporting the 2nd PWM ripples,
So that the controller 101 drives the second electric putter 107 to move according to the 2nd PWM ripples control the second motor drive module 105
Make, to realize being turned on or off for trunk door 108；
Wherein, the PWM ripples that the controller 101 is exported according to a PWM wave producers 102, control first
Motor drive module 104 drives the action of the first electric putter 106 and according to the second of the 2nd PWM wave producers 103 output
PWM ripples, control the second motor drive module 105 drives the action of the second electric putter 107, to complete unlatching or the pass of trunk door
Close.
Wherein, a PWM ripples and the 2nd PWM wave producers 103 of the output of a PWM wave producers 102 are defeated
The 2nd PWM ripples for going out to carry out simultaneously, in driving first electric putter 106 and the process of second electric putter 107 action
In, a PWM ripples are identical with the average frequency of the 2nd PWM ripples, and in PWM ripples described in synchronization and described
The frequency of the 2nd PWM ripples is different.
The vehicle control system provided by the application present invention, the controller is being received for carrying out to trunk door
During the control signal being turned on or off, send to a PWM wave producers and the 2nd PWM wave producers respectively
PWM wave output signals；The PWM ripples that the controller is exported according to a PWM wave producers, the first motor of control drives
The the first electric putter action of dynamic module drive and the 2nd PWM ripples exported according to the 2nd PWM wave producers, control second is electric
Machine drive module drives the second electric putter action；Wherein, a PWM ripples of PWM wave producers output and described the
, to carry out simultaneously, driving, first electric putter and second electric putter are dynamic for 2nd PWM ripples of two PWM wave producers output
During work, a PWM ripples are identical with the average frequency of the 2nd PWM ripples, with ensure first electric putter and
The concordance of the second electric putter action；And a PWM ripples and the 2nd PWM ripples described in synchronization frequency not
Together, the frequency of its each harmonic is also different, therefore will not cause harmonic resonance, so as to avoid two motor drive modules
Between interference strengthen because harmonic wave is superimposed, and external electromagnetic interference also can weaken, and improve in-car electromagnetic environment
Quality, it is ensured that the normal work of in-car other circuit function modules, improves Consumer's Experience, reduces the generation of security incident.
In the control system that the present invention is provided, as shown in figure 3, the control system also includes：Position detecting module
109；
The position detecting module 109, for starting to move when first electric putter 106 and second electric putter 107
When making, the position signalling of trunk door 108 described in Real-time Collection, and the position signalling is sent to into the controller 101；Its
In, the position detecting module 109 may be mounted at the turned position of the trunk door 108.
The controller 101, for according to the position signalling for receiving, judging whether the trunk door 108 reaches
Default position；When the trunk door 108 reaches default position, the PWM wave producers 102 and described are controlled
2nd PWM wave producers 103 stop output PWM ripples, to stop driving first electric putter 106 and second electric putter
107 actions.
In the control system that the present invention is provided, a PWM wave producers 102 are by frequency hopping or frequency sweep
Mode exports a PWM ripples.
In the control system that the present invention is provided, the 2nd PWM wave producers 103 are by frequency hopping or frequency sweep
Mode exports the 2nd PWM ripples.
Wherein, the frequency hopping is by sending data output signal to the pseudo random number module in controller 101, making
It constantly exports pseudo random number to PWM wave producers, and PWM wave producers do according to the pseudo random number for receiving to the frequency that it is exported
Go out corresponding adjustment；The frequency sweep is exactly that the PWM wave frequencies that send of PWM wave producers follow a triangular wave or sawtooth waveforms continuous
Rise or fall, wherein, the triangular wave or sawtooth waveforms prestored in processor is a series of digitalized data, and these are counted
According to PWM wave producers are assigned to successively, to change its output frequency.
The first PWM wave producers 102 and the 2nd PWM wave producers 103 be it is relatively independent, one of them
PWM wave producers will not produce any impact when PWM ripples are sent to another PWM wave producer, so any interference
Strengthen, be particularly superimposed and all farthest suppressed；The first PWM ripples and the 2nd PWM ripples, its frequency is in certain model
It is continually varying in enclosing, the certain limit refers to PWM ripples on the basis of fundamental frequency plus the frequency change after deviation frequency
Scope；Between 5kHz to 100kHz, the excursion of the deviation frequency exists the fundamental frequency of the PWM ripples that PWM wave producers send
Between 100Hz to 30kHz, wherein the fundamental frequency of PWM ripples adds the frequency after deviation frequency not necessarily between 5kHz to 100kHz,
After needing through being superimposed and carry out preferably, the fundamental frequency for making PWM ripples adds the frequency after deviation frequency still in 5kHz to 100kHz
Between, when PWM ripples fundamental frequency plus the frequency after deviation frequency not between 5kHz to 100kHz when, then PWM wave producers weight
PWM ripples are newly sent, the frequency after the fundamental frequency of PWM ripples is plus deviation frequency is between 5kHz to 100kHz；Wherein according to experience,
When PWM ripples base frequency range is in 10kHz to 30kHz, the scope of deviation frequency is that (deviation frequency can left avertence for 200Hz to 15kHz
Right avertence, you can increase can be reduced), and the fundamental frequency of PWM ripples plus the frequency after deviation frequency still in 10kHz to 30kHz,
To extraradial electromagnetic interference it is minimum to motorcar electric trunk door control device.
In the control system that the present invention is provided, as shown in figure 4, the controller 101 includes：First pseudo random number module
1011 and the second pseudo random number module 1012；
The first pseudo random number module 1011, for when data output instruction is received, constantly exporting pseudo random number
To a PWM wave producers 102；The pseudo random number that the first PWM wave producers 102 are received according to it, adjusts its defeated
The PWM wave frequencies for going out；
The second pseudo random number module 1012, for when data output instruction is received, constantly exporting pseudo random number
To the 2nd PWM wave producers 103；The pseudo random number that the 2nd PWM wave producers 103 are received according to it, adjusts its defeated
The PWM wave frequencies for going out.
In the control system that the present invention is provided, the position detecting module 109 includes：First position detector unit and
Two position detection units；
The first position detector unit is integrated in first electric putter 106 with first motor drive module 104
It is internal；
The second position detector unit is integrated in second electric putter 107 with second motor drive module 105
It is internal.
In the control system that the present invention is provided, the controller 101, a PWM wave producers 102 and the 2nd PWM ripples
Generator 103 is integrated in first circuit board with first motor drive module 104 and second motor drive module 105
In.
In the control system that the present invention is provided, the controller 101, a PWM wave producers 102 and the 2nd PWM ripples
Generator 103 is integrated in the position detecting module 109, the first motor drive module 104 and the second motor drive module 105
In second circuit board.
With reference to Fig. 5, a kind of method flow diagram of control method for vehicle provided in an embodiment of the present invention, methods described are shown
Vehicle control system is applied to, including：Controller 101, a PWM wave producers 102 and the 2nd PWM wave producers 103；It is described
Method includes：
Step S501：When the controller 101 receives the control for being turned on or off to trunk door 108
During signal, respectively PWM wave output signals are sent to a PWM wave producers 102 and the 2nd PWM wave producers 103,
So that a PWM wave producers 102 export a PWM ripples and the 2nd PWM wave producers 103 export the 2nd PWM
Ripple；Wherein, it is different with the frequency of the 2nd PWM ripples in a PWM ripples described in synchronization；
Step S502：According to the PWM ripples that a PWM wave producers 102 are exported, the first Motor drive mould is controlled
The 2nd PWM ripples that block 104 drives the action of the first electric putter 106 and exports according to the 2nd PWM wave producers 103, control
Second motor drive module 105 drives the action of the second electric putter 107, to realize being turned on or off for trunk door 108.
By the application control method that carries of the present invention, receive for being opened to trunk door when the controller or
During the control signal that person closes, PWM ripples are sent to a PWM wave producers and the 2nd PWM wave producers respectively defeated
Go out signal；According to the PWM ripples that a PWM wave producers are exported, control the first motor drive module driving first is electric
Putter action and the 2nd PWM ripples exported according to the 2nd PWM wave producers, the second motor drive module of control drives the
Two electric putter actions, during electric putter action is driven, in synchronization, a PWM ripples and the 2nd PWM ripples
Frequency it is different, the frequency of its each harmonic is also different, therefore will not cause harmonic resonance, so as to avoid two motors
Interference between drive module is strengthened because harmonic wave is superimposed, and external electromagnetic interference also can weaken.
In the method that the present invention is provided, as shown in fig. 6, the method also includes：
Step S601：When first electric putter 106 and the 107 beginning action of the second electric putter, institute is obtained in real time
State the current position signalling of trunk door 108；
Step S602：According to the position signalling, judge whether the trunk door 108 reaches default position；
Step S603：When the trunk door 108 reaches default position, a PWM wave producers 102 are controlled
Stop output PWM ripples with the 2nd PWM wave producers 103, to stop driving first electric putter 106 and described second electric
The action of push rod 107.
The present invention solves the harmonic wave interference problem in the control of motorcar electric trunk door, reduces being manufactured into for automobile
This；By being minimized trunk door control device to extraradial electromagnetic interference using this control method, improve
The quality of in-car electromagnetic environment, it is ensured that the normal work of in-car other circuit function modules, improves Consumer's Experience, reduces peace
The generation of full accident.
Each embodiment is described by the way of progressive in this specification, and what each embodiment was stressed is and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.For device disclosed in embodiment
For, because it is corresponded to the method disclosed in Example, so description is fairly simple, related part is said referring to method part
It is bright.
In addition it should be noted that, device embodiment described above is only schematic, wherein described as separating
The unit of part description can be or may not be it is physically separate, can be as the part that unit shows or
Can not be physical location, you can be located at a place, or can also be distributed on multiple NEs.Can be according to reality
The purpose for needing to select some or all of unit therein to realize this embodiment scheme on border.In addition, what the present invention was provided
In device embodiment accompanying drawing, the annexation between unit is represented and have between them communication connection, specifically can be implemented as one
Bar or a plurality of communication bus or holding wire.Those of ordinary skill in the art are not in the case where creative work is paid, you can with
Understand and implement.
In sum, above example is only to illustrate technical scheme, rather than a limitation；Although with reference to upper
State embodiment to be described in detail the present invention, it will be understood by those within the art that：It still can be to upper
State the technical scheme described in each embodiment to modify, or equivalent is carried out to which part technical characteristic；And these
Modification is replaced, and does not make the spirit and scope of the essence disengaging various embodiments of the present invention technical scheme of appropriate technical solution.
Claims (10)
1. a kind of vehicle control system, it is characterised in that include：Controller, a PWM wave producers and the 2nd PWM ripples occur
Device；
The controller, for when the control signal for being turned on or off to trunk door is received, respectively to
The first PWM wave producers and the 2nd PWM wave producers send PWM wave output signals；
The first PWM wave producers, for according to the PWM wave output signals for receiving, exporting a PWM ripples so that institute
State controller and control the first electric putter action of driving of the first motor drive module according to a PWM ripples, to realize boot
Door be turned on or off；
The 2nd PWM wave producers, for according to the PWM wave output signals for receiving, exporting the 2nd PWM ripples so that institute
State controller and control the second electric putter action of driving of the second motor drive module according to the 2nd PWM ripples, to realize boot
Door be turned on or off；
Wherein, a PWM ripples of the PWM wave producers output and the 2nd PWM of the 2nd PWM wave producers output
Ripple to carry out simultaneously, during first electric putter and the second electric putter action is driven, a PWM ripples and
The average frequency of the 2nd PWM ripples is identical, and a PWM ripples and the 2nd PWM ripples described in synchronization frequency not
Together.
2. system according to claim 1, it is characterised in that also include：Position detecting module；
The position detecting module, for when first electric putter and second electric putter start action, Real-time Collection
The position signalling of the trunk door, and the position signalling is sent to into the controller；
The controller, for according to the position signalling for receiving, judging whether the trunk door reaches default position；
When the trunk door reaches default position, control a PWM wave producers and the 2nd PWM wave producers stop
PWM ripples are only exported, to stop driving first electric putter and the second electric putter action.
3. system according to claim 1, it is characterised in that a PWM wave producers by frequency hopping or
The mode of frequency sweep exports a PWM ripples.
4. system according to claim 1, it is characterised in that the 2nd PWM wave producers by frequency hopping or
The mode of frequency sweep exports the 2nd PWM ripples.
5. system according to claim 1, it is characterised in that the controller includes：First pseudo random number module and
Two pseudo random number modules；
The first pseudo random number module, for when data output instruction is received, constantly output pseudo random number is to described the
One PWM wave producers；The pseudo random number that the first PWM wave producers are received according to it, adjusts the PWM wave frequencies of its output；
The second pseudo random number module, for when data output instruction is received, constantly output pseudo random number is to described the
Two PWM wave producers；The pseudo random number that the 2nd PWM wave producers are received according to it, adjusts the PWM wave frequencies of its output.
6. system according to claim 2, it is characterised in that the position detecting module includes：First position detection is single
Unit and second position detector unit；
The first position detector unit is integrated in inside first electric putter with first motor drive module；
The second position detector unit is integrated in inside second electric putter with second motor drive module.
7. system according to claim 1, it is characterised in that the controller, a PWM wave producers and the 2nd PWM
Wave producer is integrated in first circuit board with first motor drive module and second motor drive module.
8. system according to claim 2, it is characterised in that the controller, a PWM wave producers and the 2nd PWM
Wave producer is integrated in second circuit board with the position detecting module, the first motor drive module and the second motor drive module
In.
9. a kind of control method for vehicle, methods described is applied to vehicle control system, including：Controller, a PWM wave producers
With the 2nd PWM wave producers；Methods described includes：
When the controller receives the control signal for being turned on or off to trunk door, respectively to described
One PWM wave producers and the 2nd PWM wave producers send PWM wave output signals, so that a PWM wave producers are defeated
Go out a PWM ripples and the 2nd PWM wave producers export the 2nd PWM ripples；Wherein, in a PWM ripples described in synchronization
It is different with the frequency of the 2nd PWM ripples；
According to the PWM ripples that a PWM wave producers are exported, the first motor drive module of control drives the first electric putter
Action and the 2nd PWM ripples exported according to the 2nd PWM wave producers, control the second motor drive module driving second is electric
Putter action, to realize being turned on or off for trunk door.
10. method according to claim 9, it is characterised in that the method also includes：
When first electric putter and second electric putter start action, the current position of the trunk door is obtained in real time
Signal；
According to the position signalling, judge whether the trunk door reaches default position；
When the trunk door reaches default position, control a PWM wave producers and the 2nd PWM ripples occur
Device stops output PWM ripples, to stop driving first electric putter and the second electric putter action.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611209430.XA CN106597902A (en) | 2016-12-23 | 2016-12-23 | Vehicle control system and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611209430.XA CN106597902A (en) | 2016-12-23 | 2016-12-23 | Vehicle control system and control method |
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Cited By (1)
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| CN117459832A (en) * | 2023-10-19 | 2024-01-26 | 荣耀终端有限公司 | Camera control method, electronic equipment and storage medium |
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