CN107332481A - A kind of new car seat motor control system and its control method - Google Patents
A kind of new car seat motor control system and its control method Download PDFInfo
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- CN107332481A CN107332481A CN201710705381.7A CN201710705381A CN107332481A CN 107332481 A CN107332481 A CN 107332481A CN 201710705381 A CN201710705381 A CN 201710705381A CN 107332481 A CN107332481 A CN 107332481A
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- motor
- control unit
- brshless
- signal
- circuit
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/30—Arrangements for controlling the direction of rotation
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/04—Arrangements for controlling or regulating the speed or torque of more than one motor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/14—Electronic commutators
- H02P6/16—Circuit arrangements for detecting position
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P2203/00—Indexing scheme relating to controlling arrangements characterised by the means for detecting the position of the rotor
- H02P2203/03—Determination of the rotor position, e.g. initial rotor position, during standstill or low speed operation
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Seats For Vehicles (AREA)
- Control Of Multiple Motors (AREA)
Abstract
The present invention relates to motor control technology field, and in particular to a kind of new car seat motor control system and its control method, the system include：Connected between main control unit, secondary control unit, the major and minor control unit by controlling bus；Major and minor control unit is connected to one group of circuit for controlling motor respectively, and every group of circuit for controlling motor includes：With main control unit or the metal-oxide-semiconductor drive circuit of secondary control unit, six road metal-oxide-semiconductors are provided with metal-oxide-semiconductor drive circuit, the drive signal that the control unit is sent is converted to control signal by it；Metal-oxide-semiconductor drive circuit is connected by relay circuit with two brshless DC motors；Relay circuit controls being selectively turned on for two brshless DC motors；And brshless DC motor is provided with motor position detection circuit, motor position detection circuit is connected with main control unit；The present invention improves the effect of Consumer's Experience；And the present invention possesses control accuracy height, low cost, the efficient production advantage.
Description
Technical field
The present invention relates to pressure sensing devices technical field, and in particular to a kind of new car seat motor control system
And a kind of new car seat motor control method.
Background technology
Car seat motor on the market now, all using brush motor, it possesses rotating, the related work(such as rotation-clogging protection
Can, but the own structural characteristics based on brush motor, the operation characteristic of many brush motor rotatings can be different, such as same
Under the load of sample, exerting oneself for motor can be different, and rotating speed also can be different, causes Consumer's Experience effect bad.
The content of the invention
To overcome drawbacks described above, the purpose of the present invention be to provide a kind of new car seat motor control system with
And a kind of new car seat motor control method.
The purpose of the present invention is achieved through the following technical solutions：
The present invention is a kind of new car seat motor control system, including：Main control unit, secondary control unit, the master,
Connected between secondary control unit by controlling bus；
The main control unit is connected with first group of circuit for controlling motor, and first group of circuit for controlling motor includes：With the master
Six road metal-oxide-semiconductors are provided with first group of metal-oxide-semiconductor drive circuit of control unit connection, first group of metal-oxide-semiconductor drive circuit, it will
The drive signal that the main control unit is sent is converted to control signal；The control signal of first group of metal-oxide-semiconductor drive circuit is led to
The first relay circuit is crossed to transmit into the first brshless DC motor or the second brshless DC motor；First relay circuit
It is connected with the main control unit, for being selectively turned on to the first brshless DC motor and the second brshless DC motor；The
First, first, second mutually independent motor position detection circuit, described first, second are respectively equipped with the second brshless DC motor
Motor position detection circuit is connected with main control unit, for respectively sending the motor position signal detected to the master control
In unit processed；
The secondary control unit is connected with second group of circuit for controlling motor, and second group of circuit for controlling motor includes：With the pair
Six road metal-oxide-semiconductors are provided with second group of metal-oxide-semiconductor drive circuit of control unit connection, second group of metal-oxide-semiconductor drive circuit, it will
The drive signal that the secondary control unit is sent is converted to control signal；The control signal of second group of metal-oxide-semiconductor drive circuit is led to
The second relay circuit is crossed to transmit into the 3rd brshless DC motor or the 4th brshless DC motor；Second relay circuit
It is connected with the secondary control unit, for being selectively turned on to the 3rd brshless DC motor and the 4th brshless DC motor；The
3rd, the three, the 4th mutually independent motor position detection circuits, described three, the 4th are respectively equipped with the 4th brshless DC motor
Motor position detection circuit is connected with secondary control unit, is controlled for respectively sending the motor position signal detected to the pair
In unit processed；The secondary control unit transmits motor position signal into main control unit by controlling bus.
Wherein, the controlling bus is IIC communicating circuits, is the basis that communication is interconnected between major and minor control unit, is real
The prerequisite condition of existing memory function；
IIC communications protocol is provided with IIC communicating circuits, main control unit is host computer, and secondary control unit is slave computer, host computer
The signal that communication signal is received to slave computer, the detection of slave computer moment is sent by IIC communicating circuits at regular intervals, works as inspection
Communication information is measured, slave computer carries out after analysis decoding to information, obtains and perform related command, and connect toward host computer feedback
Receipts state；
Main control unit shares a set of above-mentioned communicating circuit, for main control unit, IIC communicating circuits with secondary control unit
The signals of TX1 connection main control units send pin, the signal of TXD1 connection secondary control units receives pin, the letter sent
Level inversion is acted on twice for number two triodes of process, significantly enhances the antijamming capability of signal；And the RX1 in circuit connects
The signal for connecing main control unit receives pin, and the signal of RXD1 connection secondary control units sends pin, as a same reason, main control list
Member is received before the signal, and signal also passes through two triodes, and level inversion is acted on twice, significantly enhances the anti-interference of signal
Ability.
Metal-oxide-semiconductor drive circuit changes into the PWM modulation signal of control unit in effective letter that metal-oxide-semiconductor can be allowed to open or close
Number, so that the voltage of control unit effectively orderlyly by the stator winding sections of brshless DC motor, can have
The torque of effect, and then effectively drive brshless DC motor to rotate.Bootstrap capacitor C3, C6 are provided with metal-oxide-semiconductor drive circuit, its
Relative voltage difference is provided for IC5 driving, enables IC5 normal works；R5, R10, R20 is drive current-limiting resistance, R15, and R170 is
Discharge resistance；These resistance are combined, and the operating current of the triode inside IC5 and IC10 can be made to be in the work of switch region
Make state, effectively can protect and drive IC5 and IC10.
Triode Q8 is provided with relay circuit, control unit controls Q8's to beat on or off by triode Q8 base stage
Close, so that the energization or power-off of the relay in control relay circuit, reach the closure state of control relay, the relay
Control unit is exclusively used in switching over control between different brshless DC motors.One control unit only has six tunnel PWMs
Signal output, can only be controlled to a brshless DC motor every time, realize that a control unit controls two motors,
It can be switched over, but two brshless DC motors can not be controlled simultaneously by above-mentioned relay circuit.
Main control unit and secondary control unit are all the controlled motors by way of this relay switch motor；Two controls
Unit processed to RY2 low and high levels by controlling inside the triode Q8 in corresponding relay circuit, control relay
Shell fragment whether adhesive so that select need drive brshless DC motor.
Further, memory module is connected with the main control unit, the memory module is used to record main control unit
Transmitted motor position signal, or motor position signal is transmitted into the main control unit；Provided with pull-up in memory module
Resistance R120, R122, the open-drain output pattern for EEPROM pins provide energy.
Control system of the present invention can first set up four three-dimensional coordinate systems, and using factory state as the zero point of coordinate system, be present
During chair use, system can be by recognizing the hoisting depth of the location status of seat, such as preceding lifting motor, the lifting lifted afterwards
Highly, horizontal motor moves horizontally distance, and chair back Angle Modulation Motor move angle, this relevant information is passed through into this hardware
Circuit is stored, when seat needs to return to most favorable position, system can by this circuit read inside relevant information,
By seat automatic position adjusting function.
Further, each motor position detection circuit includes three road Hall sensors, per Hall sensor all the way
It is connected with clamp diode, current-limiting resistance and pull-up resistor in turn.
The situation of motor position detection circuit special detection brushless DC motor rotor, passes through three road Hall sensors
Composite signal analyze the positional information of rotor, system is after rotor position information is determined, and combination algorithm could drive electricity
Machine rotates；In the control system of the present invention, every brshless DC motor all possesses a set of above-mentioned motor position detection
Electric circuit inspection motor rotor position information, i.e. system have four sets of motor position detection circuits, wherein there is two sets of this motor positions
Put in detection circuit access main control unit, in addition in two sets of access secondary control units；D12 in circuit, D14, D18 are clamper
Diode, prevents from damaging MCU because too high voltages occurs in hall signal；R130 in circuit, R131, R132 are current-limiting resistance, are prevented
Only MCU is damaged because super-high-current occurs in hall signal；R133 in circuit, R135, R137 are pull-up resistor, and hall signal is to open
Leakage output mode is, it is necessary to which peripheral electric current gives hall device energy, and hall device could normal work.
Further, failure detector circuit is connected on the bus of each brshless DC motor, for the failure to motor
State, which detect, obtains fault message, and fault message is sent into main control unit or secondary control unit.Fault detect
Bus total current state of the circuit dedicated for monitoring brshless DC motor in operation process, when electric current flows through sampling resistor
Voltage can be produced during SHUNT_R, the voltage is delivered in comparator IC11, and be compared with reference voltage, so as to draw the 4th
High level or low level are exported on pin；When the level is delivered in corresponding control unit, control unit can be by the shape of level
State judges whether electric current excessive, thus decide whether close PWM drive signal output, protect motor and controller not by
Damage.
Further, eight are connected to controlling switch on the main control unit, described eight are used for main control to controlling switch
Unit input drive signal.
Further, the quantity of the secondary control unit is more than one, and each secondary control unit is respectively connected with one the
Two groups of circuit for controlling motor.
A kind of control method of application of the present invention new car seat motor control system as described above, including：
Eight triggering states to controlling switch are detected, judge whether it produces drive signal, if drive signal is produced, according to drive
The content of dynamic signal, it is determined that needing the brshless DC motor being driven；
The connection status of relay is detected, judges whether the brshless DC motor is connected with metal-oxide-semiconductor drive circuit, if access failure,
The connection status of relay is then adjusted, the brshless DC motor is connected with metal-oxide-semiconductor drive circuit；
The current motor position signal of the brshless DC motor is obtained, and current motor position signal is recorded as original position
Signal；
After original position signal has been recorded, control signal is sent to the brshless DC motor, the brshless DC motor is carried out
Operating；Meanwhile, the rotation direction and the duration of runs of the brshless DC motor are recorded, and detect eight incessantly to control
The triggering state of switch, judges whether it produces drive signal, if not producing drive signal, is not sent to the brshless DC motor
Control signal, the brshless DC motor is without operating；
After the brshless DC motor shuts down, obtained relatively according to the rotation direction of the brshless DC motor and the duration of runs
Position signalling, and actual position signal is obtained according to the relative position signal and original position signal；By the actual position signal
Store into memory module.
Further, described store the actual position signal into memory module includes before：
According to the control signal of input, judge whether to need to store the actual position signal；If desired store, then should
Actual position signal is stored into memory module, if need not store, and the actual position signal is carried out into interim storage.
Further, the detection eight includes to before the triggering state of controlling switch：
Judge whether to receive reset signal, if receiving reset signal, to each brshless DC motor in memory module
Actual position signal is extracted, and obtains the current motor position signal of each brshless DC motor, further according to each brushless
Direct current generator actual position signal and current motor position signal, calculate each brshless DC motor direction of moving target and
Mobile target range；
According to the direction of moving target and mobile target range, corresponding control signal is produced, brshless DC motor is driven
It is dynamic.
The present invention possesses programmability using the high stability of brshless DC motor, high efficiency, for different loads
Same characteristic can have been given play to；It is controlled using brshless DC motor to automotive seat, improves the effect of Consumer's Experience
Really；And the present invention possesses control accuracy height, low cost, the efficient production advantage.
Brief description of the drawings
For ease of explanation, the present invention is described in detail by following preferred embodiments and accompanying drawing.
Fig. 1 is the integrated circuit logical construction schematic diagram of present system；
Fig. 2 is the main control unit electrical block diagram in present system；
Fig. 3 is the secondary control unit electrical block diagram in present system；
Fig. 4 is the motor position detection circuit electrical block diagram in present system；
Fig. 5 is the controlling bus electrical block diagram in present system；
Fig. 6 is the memory module electrical block diagram in present system；
Fig. 7 is the metal-oxide-semiconductor drive circuit electrical block diagram in present system；
Fig. 8 is the relay circuit electrical block diagram in present system；
Fig. 9 is the failure detector circuit electrical block diagram in present system；
Figure 10 is the operation principle schematic diagram of the inventive method.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further described.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and without
It is of the invention in limiting.
Fig. 1 to Fig. 9 is referred to, the present invention is a kind of new car seat motor control system, including：Main control unit
1st, connected between secondary control unit 2, the major and minor control unit 1,2 by controlling bus 3；
The main control unit 1 is connected with first group of circuit for controlling motor, and first group of circuit for controlling motor includes：With the master
Six road metal-oxide-semiconductors are provided with first group of metal-oxide-semiconductor drive circuit 4 that control unit 1 is connected, first group of metal-oxide-semiconductor drive circuit 4,
The drive signal that the main control unit 1 is sent is converted to control signal by it；The control of first group of metal-oxide-semiconductor drive circuit 4
Signal is transmitted into the first brshless DC motor 6 or the second brshless DC motor 7 by the first relay circuit 5；Described first
Relay circuit 5 is connected with the main control unit 1, for being carried out to the first brshless DC motor 6 and the second brshless DC motor 7
It is selectively turned on；Mutually independent first, second motor position detection electricity is respectively equipped with first, second brshless DC motor 6,7
Road 8,9, first, second motor position detection circuit 8,9 is connected with main control unit 1, for will detect respectively
Motor position signal is sent into the main control unit 1；
The secondary control unit 2 is connected with second group of circuit for controlling motor, and second group of circuit for controlling motor includes：With the pair
Six road MOS are provided with second group of metal-oxide-semiconductor drive circuit 10 that control unit 2 is connected, second group of metal-oxide-semiconductor drive circuit 10
Pipe, the drive signal that the secondary control unit 2 is sent is converted to control signal by it；Second group of metal-oxide-semiconductor drive circuit 10
Control signal is transmitted into the 3rd brshless DC motor 12 or the 4th brshless DC motor 13 by the second relay circuit 11；Institute
State the second relay circuit 11 to be connected with the secondary control unit 2, for the 3rd brshless DC motor 12 and the 4th brushless direct-current
Motor 13 is selectively turned on；The three, the 4th mutually independent electricity are respectively equipped with three, the 4th brshless DC motors 12,13
Machine position detecting circuit 14,15, the three, the 4th motor position detection circuit 14,15 is connected with secondary control unit 2, is used
In the motor position signal detected is sent into the secondary control unit 2 respectively；The secondary control unit 2 believes motor position
Number transmitted by controlling bus 3 into main control unit 1.
Main control unit 1, secondary control unit 2 are the core components of control system in the present invention, and it can be public using auspicious Sa
Department（Renesas）Model R5F10AGCLFB control chip, it possesses collection information, analyzes information, and motor drive signal is defeated
Go out and the correlation function such as false alarm；Communication connection is carried out by controlling bus 3 between main control unit 1, secondary control unit 2
System, main control list is host computer, and secondary control unit 2 is slave computer.
Further, memory module 16 is connected with the main control unit 1, the memory module 16 is used to record main control
Motor position signal transmitted by unit 1, or motor position signal is transmitted into the main control unit 1.
Further, each motor position detection circuit includes three road Hall sensors, per Hall sensor all the way
It is connected with clamp diode, current-limiting resistance and pull-up resistor in turn.
Further, failure detector circuit is connected on the bus of each brshless DC motor, for the failure to motor
State, which detect, obtains fault message, and fault message is sent into main control unit 1 or secondary control unit 2；Brushless
At any moment of direct current generator rotation, as long as there occurs fault, system can also stop exporting PWM modulation signal at once, allow
Brshless DC motor stops the rotation, to protect motor and controller without damage.
Further, eight are connected to controlling switch on the main control unit 1, described eight are used for main control to controlling switch
The input drive signal of unit 1.
Further, the quantity of the secondary control unit 2 is more than one, and each secondary control unit 2 is respectively connected with one
Second group of circuit for controlling motor.It is specific when installing and using, can according to circumstances the need for secondary control unit 2 and second group of motor control
The quantity of circuit processed is increased, and if desired for realizing ten to during control, then can increase by one group of secondary control unit 2 and second group of motor
Control circuit.
When user adjusts seat position, because the working speed of motor is constant, system only needs to record user's regulation
The time of seat and direction, you can the relative displacement for recording this regulation is poor, this relative displacement difference are according to the coordinate zero dispatched from the factory
Point is relative displacement.In this way, you can the displacement information in record all directions, if position user starts memory
The positional information can be recorded as user and like state by function, system, when user is on the basis of this and carry out position adjustment, but
Do not start memory function, positional information memory can be transitory state by system.If desired position resets, when position resets, and only needs
By the positional information of transitory state by the same time, reverse direction is adjusted, you can is recovered user and is liked under state
Seat position.
When starting seat position memory reset function, receive that the reset requires signal is main control unit 1, sub-control
Unit 2 can not receive reset and require signal.Main control unit 1 immediately enters position reset mode, and is sent out to secondary control unit 2
Seat position reset mode is sent to instruct, now, system does not receive eight any instructions to controlling switch, even if eight to controlling switch
There is no any operation, the motor of system still can start, carry out seat position adjustment.Main control unit 1 exists with secondary control unit 2
In the reset mode of position, the positional information of seat can be read to respective memory module 16, and by analyzing the relative position of seat
Shifting calculates output pwm signal and obtains the time, at the same time, and control unit obtains three road Hall letters from three road hall signal circuits
Number, by three road hall signal combinatory analyses, recognizing the rotor-position state of motor, according to SVPWM algorithms, calculating driving
Voltage vector direction and angle that rotor is rotated, and by way of exporting PWM modulation signal, pwm signal is driven by metal-oxide-semiconductor
Circuit controls the respective magnetic field energy opened and off state, the energy of power supply is converted into motor internal of six road metal-oxide-semiconductors, presses
Time and the operating of frequency motor according to setting.After main control unit 1 completes position homing action, sub-control can be inquired about
The feedback position of unit 2 resets the signal of progress, if secondary control unit 2 does not complete position reset, main control unit 1 still sends position
Reset instruction is put to secondary control unit 2, it is ensured that secondary control unit 2 is not influenceed by eight to controlling switch；If secondary control unit 2 is complete
Into position reset, main control unit 1 sends the canceling position reset mode of secondary control unit 2, now, system receive again eight to
The instruction of controlling switch.
Current existing car seat motor control program is controlled by brush motor, and eight connect to controlling switch
The brush motor of four different directions, and this eight is also connected to controlling switch with power supply, is exactly when eight to control briefly
There is one to be closed to switch in system switch, can start to rotate to a specific power supply in four brush motors, brush motor, work as release
During switch, brush motor power-off stops.From its control mode, and control circuit is not present, simply simple switch on and off
The process of electricity.And in existing scheme this eight to controlling switch closure disconnect moment can produce than larger arcing electric current, make
The contact point of switch is easily aoxidized, and causes loose contact, has a strong impact on the service life of switch.And the present invention is using a control
System processed goes to control the control program of four different motion direction brshless DC motors, by eight to the one-to-one control of controlling switch
System, accuracy is high, compared with the control program of brush motor, and of the invention eight only provide level weak current letter to controlling switch
Number, arcing electric current will not be produced to switch contact, therefore, the service life of switch can be greatly improved, and band during switch switching
The brshless DC motor characteristic of controller has adjustable function, and such as soft-start time can adjust, and Rated motor working speed can
Regulation, the advantages of motor speed characteristic is hard, compared with brush motor, brshless DC motor manufacture craft is simple, possesses and is fabricated to
This is low, and running efficiency of system is high, the low advantage of fraction defective.
It refer to Figure 10, a kind of controlling party of application of the present invention new car seat motor control system as described above
Method, including：
201. judge whether to receive reset signal
Detect and judge whether to receive the reset signal that user is inputted,
202. according to position signalling motor
If receiving reset signal, the actual position signal of each brshless DC motor in memory module is extracted, and
The current motor position signal of each brshless DC motor is obtained, further according to each brshless DC motor actual position signal with working as
Preceding motor position signal, calculates the direction of moving target and mobile target range of each brshless DC motor；According to the movement
Target direction and mobile target range, produce corresponding control signal, brshless DC motor are driven；
The triggering state of 203. detection switch
If not receiving reset signal, eight triggering states to controlling switch are detected, detection eight which presses into controlling switch
Key is triggered, and produces corresponding drive signal；
204. judge whether to produce drive signal
Judge whether it produces drive signal,
205. determine to need the motor of driving
If producing drive signal, according to the content of drive signal, it is determined that needing the brshless DC motor being driven；Due to this
Provided with four brshless DC motors in the control system of invention, each brshless DC motor is by forward and reverse to seat two
Pair the movement of individual opposite direction is controlled, and eight have eight buttons to controlling switch, one control direction of each button correspondence, i.e.,
Answer a rotation direction of a brshless DC motor；If eight buttons into controlling switch is triggered, its is corresponding
Brshless DC motor is that can be rotated to correspondence direction；
206. determine whether to switch motor connection
The connection status of relay is detected, judges whether the brshless DC motor is connected with metal-oxide-semiconductor drive circuit, if having been turned on,
Then carry out step 208. and obtain motor position signal；
The connection status of 207. adjustment relays
If access failure, the connection status of relay is adjusted, the brshless DC motor is connected with metal-oxide-semiconductor drive circuit；Below
Its specific switching judging process is explained with an example：Because the motor lines of first, second brshless DC motor 7 are connected
On the first relay circuit, if it is to the first brshless DC motor to detect eight into the drive signal produced by controlling switch
6 rotation commands, and default conditions when electric on the first relay circuit are the motor lines for connecting the first brshless DC motor 6,
And system need not switch relay；And be brushless to second straight when detecting eight into the drive signal produced by controlling switch
The rotation command of motor 7 is flowed, it is main when now the switching of relay needs just can connect to the motor lines of the second brshless DC motor 7
Control unit 1 needs to send closing relay and instruct to make relay be closed into other side, drives line switching is connected to second
The motor lines of brshless DC motor 7；
208. obtain motor position signal
The current motor position signal of the brshless DC motor is obtained, and current motor position signal is recorded as original position
Signal；By obtaining three road hall signals in the motor position detection circuit that is connected with the brshless DC motor, Hall is analyzed
Signal obtains current motor position signal；
209. motors are operated
After original position signal has been recorded, control signal is sent to the brshless DC motor, the brshless DC motor is carried out
Operating；It is specially：The size and angle of space vector of voltage are calculated with SVPWM algorithms, and be converted into pwm signal to this
Brshless DC motor is sent；Meanwhile, the rotation direction and the duration of runs of the brshless DC motor are recorded, and incessantly
Step 202 is carried out, eight triggering states to controlling switch is detected, judges whether it produces drive signal；
210. motors are without operating
If not producing drive signal, control signal is not sent to the brshless DC motor, the brshless DC motor is without operating；
211. obtain actual position signal
After the brshless DC motor shuts down, obtained relatively according to the rotation direction of the brshless DC motor and the duration of runs
Position signalling, and actual position signal is obtained according to the relative position signal and original position signal；
212. judge whether to store actual position signal
According to the control signal of input, judge whether to need to store the actual position signal；If desired store, then should
Actual position signal is stored into memory module 16, if need not store, and the actual position signal is carried out into interim storage；When
User's selection is stored to the actual position signal, and the positional information can be recorded as user and like state by system, work as user
Position adjustment has been carried out again on the basis of this, but has not started memory function, positional information memory can be transitory state by system.If
Position is needed to reset, only need to be by the positional information of transitory state by the same time when position resets, reverse direction is adjusted
It is whole, you can recovery user likes the seat position under state；
213. storage actual position signals
The actual position signal is stored into memory module 16, the actual position signal have recorded user and like seat under state
Chair positional information.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.
Claims (9)
1. a kind of new car seat motor control system, it is characterised in that including：Main control unit, secondary control unit, institute
State and connected by controlling bus between major and minor control unit；
The main control unit is connected with first group of circuit for controlling motor, and first group of circuit for controlling motor includes：With the master
Six road metal-oxide-semiconductors are provided with first group of metal-oxide-semiconductor drive circuit of control unit connection, first group of metal-oxide-semiconductor drive circuit, it will
The drive signal that the main control unit is sent is converted to control signal；The control signal of first group of metal-oxide-semiconductor drive circuit is led to
The first relay circuit is crossed to transmit into the first brshless DC motor or the second brshless DC motor；First relay circuit
It is connected with the main control unit, for being selectively turned on to the first brshless DC motor and the second brshless DC motor；The
First, first, second mutually independent motor position detection circuit, described first, second are respectively equipped with the second brshless DC motor
Motor position detection circuit is connected with main control unit, for respectively sending the motor position signal detected to the master control
In unit processed；
The secondary control unit is connected with second group of circuit for controlling motor, and second group of circuit for controlling motor includes：With the pair
Six road metal-oxide-semiconductors are provided with second group of metal-oxide-semiconductor drive circuit of control unit connection, second group of metal-oxide-semiconductor drive circuit, it will
The drive signal that the secondary control unit is sent is converted to control signal；The control signal of second group of metal-oxide-semiconductor drive circuit is led to
The second relay circuit is crossed to transmit into the 3rd brshless DC motor or the 4th brshless DC motor；Second relay circuit
It is connected with the secondary control unit, for being selectively turned on to the 3rd brshless DC motor and the 4th brshless DC motor；The
3rd, the three, the 4th mutually independent motor position detection circuits, described three, the 4th are respectively equipped with the 4th brshless DC motor
Motor position detection circuit is connected with secondary control unit, is controlled for respectively sending the motor position signal detected to the pair
In unit processed；The secondary control unit transmits motor position signal into main control unit by controlling bus.
2. new car seat motor control system according to claim 1, it is characterised in that the main control unit
On be connected with memory module, the memory module is used to recording the motor position signal transmitted by main control unit, or by motor
Position signalling is transmitted into the main control unit.
3. new car seat motor control system according to claim 2, it is characterised in that each motor position
Putting detection circuit includes three road Hall sensors, is connected with clamp diode, current limliting electricity in turn per Hall sensor all the way
Resistance and pull-up resistor.
4. new car seat motor control system according to claim 3, it is characterised in that each described brushless straight
Failure detector circuit is connected on the bus for flowing motor, is detected for the malfunction progress to motor and obtains fault message, and will
Fault message is sent into main control unit or secondary control unit.
5. new car seat motor control system according to claim 4, it is characterised in that the main control unit
On be connected to eight to controlling switch, described eight are used for main control unit input drive signal to controlling switch.
6. new car seat motor control system according to claim 5, it is characterised in that the secondary control unit
Quantity be more than one, and each secondary control unit is respectively connected with second group of circuit for controlling motor.
7. a kind of control method of application new car seat motor control system as claimed in claim 1, it is characterised in that
Including：
Eight triggering states to controlling switch are detected, judge whether it produces drive signal, if drive signal is produced, according to drive
The content of dynamic signal, it is determined that needing the brshless DC motor being driven；
The connection status of relay is detected, judges whether the brshless DC motor is connected with metal-oxide-semiconductor drive circuit, if access failure,
The connection status of relay is then adjusted, the brshless DC motor is connected with metal-oxide-semiconductor drive circuit；
The current motor position signal of the brshless DC motor is obtained, and current motor position signal is recorded as original position
Signal；
After original position signal has been recorded, control signal is sent to the brshless DC motor, the brshless DC motor is carried out
Operating；Meanwhile, the rotation direction and the duration of runs of the brshless DC motor are recorded, and detect eight incessantly to control
The triggering state of switch, judges whether it produces drive signal, if not producing drive signal, is not sent to the brshless DC motor
Control signal, the brshless DC motor is without operating；
After the brshless DC motor shuts down, obtained relatively according to the rotation direction of the brshless DC motor and the duration of runs
Position signalling, and actual position signal is obtained according to the relative position signal and original position signal；By the actual position signal
Store into memory module.
8. control method according to claim 7, it is characterised in that described to store the actual position signal to memory mould
Include before in block：
According to the control signal of input, judge whether to need to store the actual position signal；If desired store, then should
Actual position signal is stored into memory module, if need not store, and the actual position signal is carried out into interim storage.
9. control method according to claim 8, it is characterised in that triggering state from the detection eight to controlling switch it
Before include：
Judge whether to receive reset signal, if receiving reset signal, to each brshless DC motor in memory module
Actual position signal is extracted, and obtains the current motor position signal of each brshless DC motor, further according to each brushless
Direct current generator actual position signal and current motor position signal, calculate each brshless DC motor direction of moving target and
Mobile target range；
According to the direction of moving target and mobile target range, corresponding control signal is produced, brshless DC motor is driven
It is dynamic.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710705381.7A CN107332481B (en) | 2017-08-17 | 2017-08-17 | Novel automobile seat motor control system and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710705381.7A CN107332481B (en) | 2017-08-17 | 2017-08-17 | Novel automobile seat motor control system and control method thereof |
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| CN107332481B CN107332481B (en) | 2023-07-18 |
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| CN201710705381.7A Active CN107332481B (en) | 2017-08-17 | 2017-08-17 | Novel automobile seat motor control system and control method thereof |
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| CN109510524A (en) * | 2018-12-19 | 2019-03-22 | 北京经纬恒润科技有限公司 | The storage method and device of motor position information |
| CN111267682A (en) * | 2020-03-25 | 2020-06-12 | 北京经纬恒润科技有限公司 | Seat position monitoring method and device and controller |
| CN114115038A (en) * | 2021-11-25 | 2022-03-01 | 上汽大众汽车有限公司 | Passenger car man-machine verification cabin intelligent regulation control system based on WIFI communication control and method thereof |
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| Publication number | Publication date |
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| CN107332481B (en) | 2023-07-18 |
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