CN106891782B - The method and device of chair control - Google Patents
The method and device of chair control Download PDFInfo
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- CN106891782B CN106891782B CN201510963660.4A CN201510963660A CN106891782B CN 106891782 B CN106891782 B CN 106891782B CN 201510963660 A CN201510963660 A CN 201510963660A CN 106891782 B CN106891782 B CN 106891782B
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- 230000005540 biological transmission Effects 0.000 claims description 23
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- 238000001514 detection method Methods 0.000 claims description 21
- 238000012790 confirmation Methods 0.000 claims description 18
- 230000009471 action Effects 0.000 claims description 13
- 108010001267 Protein Subunits Proteins 0.000 claims description 2
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- 238000010586 diagram Methods 0.000 description 7
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/0224—Non-manual adjustments, e.g. with electrical operation
- B60N2/02246—Electric motors therefor
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- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
A kind of identification of seat state, chair control method and device, it is described that know method for distinguishing include: the driving parameters for detecting vehicle；According to the driving parameters of the vehicle, the current centripetal characteristic of vehicle is calculated；The current centripetal characteristic of the vehicle being calculated is compared with preset centripetal characteristic threshold value, judges whether to control the seat on the vehicle.The cost that seat state identification and chair control can be reduced using the above scheme, improves the comfort level of seat.
Description
Technical field
The present invention relates to field of vehicle control more particularly to the method and devices of a kind of identification of seat state, chair control.
Background technique
As automobile application is more more and more universal, automotive engineering is also being constantly brought forth new ideas, the comfort of seat and safety also by
Step is valued by the people, and current popular Evaluations for Ride Comfort of Vehicle Seats function is mainly with the massage of air-bag type Seat lumbar
It is main.The control of seat is extremely important to traffic safety, for example when vehicle is taken a sudden turn, may get rid of driver and passenger
To the side of seat, in some instances it may even be possible to will lead to driver to the out of control in short-term of steering wheel, gas pedal or brake pedal operation, such as
Fruit does not carry out control and adjustment appropriate to seat, is extremely easy to produce traffic accident.
Currently, the information by global positioning system (Global Positioning System, GPS) judges that vehicle is
It is no that control is adjusted correspondingly to seat using motor driven supporting mechanism according to the judging result into negotiation of bends.
But in this case, it is possible to it will lead at high cost, the negotiation of bends control of negotiation of bends control and bend identification
The comfort level of system is low.
Summary of the invention
The one aspect of the embodiment of the present invention can reduce seat state identification cost.
The other side of the embodiment of the present invention can reduce the cost of chair control, improve the comfort level of seat.
To solve the above problems, the present invention provides a kind of seat state knowledge method for distinguishing, which comprises
Detection is equipped with the driving parameters of the vehicle of the seat；
According to the driving parameters of the vehicle, the current centripetal characteristic of the vehicle is calculated；
The current centripetal characteristic of the vehicle being calculated is compared with preset centripetal characteristic threshold value, is sentenced
It is disconnected whether the seat on the vehicle to be controlled.
Optionally, the driving parameters of the vehicle include: the travel speed and steering wheel angle signal of the vehicle.
Optionally, the current centripetal characteristic of the vehicle, comprises at least one of the following: turning radius, the vehicle
The centripetal force and centripetal acceleration generated in negotiation of bends.
Optionally, the current centripetal characteristic of the vehicle is the turning radius, the row according to the vehicle
Parameter is sailed, the current centripetal characteristic of the vehicle is calculated, comprising:
R=L/sin (A/N)；
Wherein: R is the turning radius, and L is the wheelbase of the vehicle, and A is the steering wheel angle signal, and N is direction
The transmission ratio of disk and wheel steering.
Optionally, the current centripetal characteristic of the vehicle is the centripetal force, the traveling according to the vehicle
Parameter calculates the current centripetal characteristic of the vehicle, comprising:
F=MV2*sin(A/N)/L；
Wherein: F is the centripetal force that the vehicle is generated in negotiation of bends, and M is the weight of driver, and V is the vehicle
Travel speed, L be the vehicle wheelbase, A be the steering wheel angle signal, N be steering wheel and wheel steering transmission
Than.
Optionally, the current centripetal characteristic of the vehicle be the vehicle generated in negotiation of bends to cadion-acceleration
Degree, the driving parameters according to the vehicle calculate the current centripetal characteristic of the vehicle, comprising:
A=V2*sin(A/N)/L；
Wherein: a is the centripetal acceleration that the vehicle is generated in negotiation of bends, and V is the travel speed of the vehicle, L
For the wheelbase of the vehicle, A is the steering wheel angle signal, and N is the transmission ratio of steering wheel and wheel steering.
The embodiment of the invention provides a kind of methods of chair control, which comprises
Identify whether to control the seat；
When confirmation does not control the seat, the support pressure value of airbag at left and right sides of the seat is detected；
When confirmation controls the seat, the support pressure value of airbag at left and right sides of the seat is detected；
Judgement is equipped with the direction of the vehicle driving of the seat；
According to the direction of the vehicle driving and the difference of the support pressure value, accordingly by air pump to the seat
The support pressure value of left and right sides airbag is respectively controlled.
It is optionally, described to identify whether to control the seat, comprising:
Identify whether the vehicle is in negotiation of bends state, when determining that the vehicle is in negotiation of bends state, really
It is fixed that the seat is controlled, when determining that the vehicle is in non-negotiation of bends state, determines and the seat is not carried out
Control.
Optionally, whether the identification vehicle is in negotiation of bends state, comprising:
Detect the driving parameters of the vehicle；
According to the driving parameters of the vehicle, the current centripetal characteristic of the vehicle is calculated；
The current centripetal characteristic of the vehicle being calculated is compared with preset centripetal characteristic threshold value, is sentenced
Whether the vehicle that breaks is in negotiation of bends state.
Optionally, the driving parameters of the vehicle include: the travel speed and steering wheel angle signal of the vehicle.
Optionally, the current centripetal characteristic of the vehicle, comprises at least one of the following: turning radius, the vehicle
The centripetal force and centripetal acceleration generated in negotiation of bends.
Optionally, the current centripetal characteristic of the vehicle is the turning radius, the row according to the vehicle
Parameter is sailed, the current centripetal characteristic of the vehicle is calculated, comprising:
R=L/sin (A/N)；
Wherein: R is the turning radius, and L is the wheelbase of the vehicle, and A is the steering wheel angle signal, and N is direction
The transmission ratio of disk and wheel steering.
Optionally, the current centripetal characteristic of the vehicle is the centripetal force, the traveling according to the vehicle
Parameter calculates the current centripetal characteristic of the vehicle, comprising:
F=MV2*sin(A/N)/L；
Wherein: F is the centripetal force, and M is the weight of driver, and V is the travel speed of the vehicle, and L is the vehicle
Wheelbase, A be the steering wheel angle signal, N be steering wheel and wheel steering transmission ratio.
Optionally, the current centripetal characteristic of the vehicle be the vehicle generated in negotiation of bends to cadion-acceleration
Degree, the driving parameters according to the vehicle calculate the current centripetal characteristic of the vehicle, comprising:
A=V2*sin(A/N)/L；
Wherein: a is the centripetal acceleration that the vehicle is generated in negotiation of bends, and V is the travel speed of the vehicle, L
For the wheelbase of the vehicle, A is the steering wheel angle signal, and N is the transmission ratio of steering wheel and wheel steering.
Optionally, the direction of the vehicle driving for judging to be equipped with the seat, comprising:
Detect the steering wheel angle signal；
When the steering wheel angle signal is greater than zero, determine the direction of the vehicle driving for a left side；
When the steering wheel angle signal is less than zero, determine the direction of the vehicle driving for the right side.
Optionally, the direction according to the vehicle driving and the difference for supporting pressure value, accordingly by gas
It pumps and the support pressure value of airbag at left and right sides of the seat is respectively controlled, comprising:
When the direction of the vehicle driving is left, controls the air pump and stop being air bag inflator on the right side of the seat, after
Continue for air bag inflator on the left of the seat, until the support pressure value of airbag is equal to confirmation not to the seat on the left of the seat
The support pressure value of detected seat left side airbag when being controlled；
When the direction of the vehicle driving is right, controls the air pump and stop being air bag inflator on the left of the seat, after
Continue for air bag inflator on the right side of the seat, until the support pressure value of airbag is equal to confirmation not to the seat on the right side of the seat
The support pressure value of detected seat right side airbag when being controlled.
Optionally, the method also includes:
Adjusting action signal from the user is received, and the seat left side is adjusted accordingly according to the adjusting action signal
The support pressure value of right two lateral airbags.
Optionally, the method also includes:
The user is recorded to the adjustment of the support pressure value of airbag at left and right sides of the seat as a result, when vehicle opens again
It is dynamic and when the user is not detected the seat being adjusted, it will be at left and right sides of the seat at the beginning of the support pressure value of airbag
Beginningization is to the adjustment result.
The embodiment of the invention provides a kind of device of seat state identification, described device includes:
Detection unit is adapted to detect for being equipped with the driving parameters of the vehicle of the seat；
Computing unit calculates the current centripetal characteristic of the vehicle suitable for the driving parameters according to the vehicle；
First judging unit, suitable for by the current centripetal characteristic of the vehicle being calculated and preset centripetal spy
Sign threshold value is compared, and judges whether to control the seat on the vehicle.
Optionally, the driving parameters of the vehicle, comprising: the travel speed and steering wheel angle signal of the vehicle.
Optionally, the current centripetal characteristic of the vehicle, comprises at least one of the following: turning radius, the vehicle
The centripetal force and centripetal acceleration generated in negotiation of bends.
Optionally, the current centripetal characteristic of the vehicle is the turning radius, the computing unit, including first
Computation subunit, suitable for being calculated by the following formula the current centripetal characteristic of the vehicle:
R=L/sin (A/N)；
Wherein: R is the turning radius, and L is the wheelbase of the vehicle, and A is the steering wheel angle signal, and N is direction
The transmission ratio of disk and wheel steering.
Optionally, the current centripetal characteristic of the vehicle is the centripetal force, the computing unit, including the second meter
Operator unit, suitable for being calculated by the following formula the current centripetal characteristic of the vehicle:
F=MV2*sin(A/N)/L；
Wherein: F is the centripetal force, and M is the weight of driver, and V is the travel speed of the vehicle, and L is the vehicle
Wheelbase, A be the steering wheel angle signal, N be steering wheel and wheel steering transmission ratio.
Optionally, the current centripetal characteristic of the vehicle be the vehicle generated in negotiation of bends to cadion-acceleration
Degree, the computing unit, including third computation subunit, suitable for being calculated by the following formula the current centripetal feature of the vehicle
Data:
A=V2*sin(A/N)/L；
Wherein: a is the centripetal acceleration that the vehicle is generated in negotiation of bends, and V is the travel speed of the vehicle, L
For the wheelbase of the vehicle, A is the steering wheel angle signal, and N is the transmission ratio of steering wheel and wheel steering.
The embodiment of the invention provides a kind of device of chair control, described device includes:
Recognition unit controls the seat suitable for identifying whether；
First detection unit, suitable for detecting the seat when recognition unit confirmation does not control the seat
The support pressure value of airbag at left and right sides of chair；
Second detection unit, suitable for detecting the seat when recognition unit confirmation controls the seat
The support pressure value of left and right sides airbag；
Second judgment unit, the direction of the vehicle driving suitable for judging to be equipped with the seat；
Control unit, suitable for the difference according to the direction of the vehicle driving and the support pressure value, accordingly by
Air pump is respectively controlled the support pressure value of airbag at left and right sides of the seat.
Optionally, the recognition unit, suitable for identifying whether the vehicle is in negotiation of bends state, when the identification vehicle
When being in negotiation of bends state, determination controls the seat, when identifying that the vehicle is in non-negotiation of bends state
When, determination does not control the seat.
Optionally, the recognition unit, comprising:
Detection sub-unit is adapted to detect for the driving parameters of the vehicle；
Computation subunit calculates the current centripetal characteristic of vehicle suitable for the driving parameters according to the vehicle；
Judgment sub-unit, suitable for centripetal characteristic and preset centripetal feature that the vehicle being calculated is current
Threshold value is compared, and judges whether the vehicle is in negotiation of bends state.
Optionally, the driving parameters of the vehicle include: the travel speed and steering wheel angle signal of the vehicle.
Optionally, the current centripetal characteristic of the vehicle, comprises at least one of the following: turning radius, the vehicle
The centripetal force and centripetal acceleration generated in negotiation of bends.
Optionally, the second judgment unit is adapted to detect for the steering wheel angle signal, when the steering wheel angle is believed
When number being greater than zero, determine that the direction of the vehicle driving for a left side, when the steering wheel angle signal is less than zero, determines the vehicle
Traveling direction be the right side.
Optionally, described control unit is suitable for when the direction of the vehicle driving is left, controlling air pump stopping
Air bag inflator on the right side of the seat continues as air bag inflator on the left of the seat, until the branch bulging of seat left side airbag
Force value is equal to the support pressure value of airbag on the left of the seat detected when confirmation does not control the seat；Work as institute
When to state the direction of vehicle driving be right, control the air pump and stop being air bag inflator on the left of the seat, continue as the seat
Right side air bag inflator, until the support pressure value of airbag does not control when institute to the seat equal to confirmation on the right side of the seat
The support pressure value of airbag on the right side of the seat detected.
Optionally, described device further include:
Unit is adjusted, is suitable for receiving adjusting action signal from the user, and correspondingly according to the adjusting action signal
Adjust the support pressure value of airbag at left and right sides of the seat.
Optionally, described device further include:
Recording unit, suitable for recording the user to the adjustment knot of the support pressure value of airbag at left and right sides of the seat
Fruit；
The adjusting unit is further adapted for that the seat is adjusted when vehicle is again started up and the user is not detected
When, the support pressure value of airbag at left and right sides of the seat is initialized to the adjustment result of the recording unit records.
Compared with prior art, technical solution of the present invention has the advantage that
On the one hand, according to the driving parameters of the vehicle, the current centripetal characteristic of vehicle is calculated, will then be calculated
To the centripetal characteristic of the vehicle be compared with preset centripetal characteristic threshold value, to judge whether on the vehicle
Seat controlled, due to the driving parameters using the parameter usually measured in vehicle travel process as the vehicle, directly
It connects and is judged according to the ride characteristic of vehicle, and special sensor need not be increased and identified, so as to reduce seat
The cost of state recognition.
On the other hand, after determining and needing to control seat, according to the direction and described of vehicle bend traveling
Vehicle is in the difference of the support pressure value of negotiation of bends state and non-negotiation of bends state, accordingly by air pump to institute
The support pressure value for stating airbag at left and right sides of seat is respectively controlled, due to being to go to control seat using air pump, because
This can reduce the cost of negotiation of bends control.Also, the mode of air pump control can reduce noise, to enhance relaxing for seat
Adaptive.
Detailed description of the invention
Fig. 1 is the flow chart that one of embodiment of the present invention seat state knows method for distinguishing；
Fig. 2 is the schematic diagram of the device of one of embodiment of the present invention seat state identification；
Fig. 3 is the flow chart of the method for one of embodiment of the present invention chair control；
Fig. 4 is the schematic diagram of the device of one of embodiment of the present invention chair control；
Fig. 5 is the schematic diagram of the device of another chair control in the embodiment of the present invention；
Fig. 6 is the schematic diagram of one of the present invention implementation system of chair control.
Specific embodiment
Currently, the information by global positioning system (Global Positioning System, GPS) judges that vehicle is
It is no that control is adjusted correspondingly to seat using motor driven supporting mechanism according to the judging result into negotiation of bends.
But in this case, due to needing the additional measuring part for increasing such as GPS etc, thus it may result in chair control
And seat state identification is at high cost, and since motor driven supporting mechanism is in adjustment process, can generate noise, therefore can make
It is low at the comfort level of seat.
Above-mentioned one of to solve the problems, such as, the embodiment of the invention provides seat states to know method for distinguishing, the method
According to the driving parameters of the vehicle, the current centripetal characteristic of vehicle is calculated, then by the vehicle being calculated
Centripetal characteristic is compared with preset centripetal characteristic threshold value, to judge whether to control seat, due to using vehicle
Driving parameters of the parameter usually measured in driving process as the vehicle, are directly sentenced according to the ride characteristic of vehicle
It is disconnected, and special sensor need not be increased and identified, so as to reduce the cost of seat state identification.
To solve the problems, such as above-mentioned another one, the embodiment of the invention provides the method for chair control, the method exists
It determines after needing to control seat, according to the seat not by state of a control and to the branch bulging under its state of a control
The difference of force value is respectively controlled accordingly by support pressure value of the air pump to airbag at left and right sides of the seat, due to
It is the cost gone to control seat using air pump, therefore seat state control can be reduced.Also, the mode of air pump control
Noise can be reduced, to enhance the comfort that driving drives.
To make the above purposes, features and advantages of the invention more obvious and understandable, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.
Fig. 1 shows the flow chart that one of embodiment of the present invention seat state knows method for distinguishing, below in conjunction with Fig. 1 pairs
The specific steps that the seat state knows method for distinguishing describe in detail:
S11: the driving parameters of vehicle are detected.
In specific implementation, in order to know the current state of vehicle form, the driving parameters of vehicle be can detecte.
In specific implementation, parameter when measuring in relation to vehicle driving is gone in order to avoid additionally increasing other sensors,
Cost is reduced, the parameter that vehicle can routinely measure can be used.For example the parameter can be the travel speed of the vehicle,
It can be steering wheel angle signal.
S12: according to the driving parameters of the vehicle, the current centripetal characteristic of vehicle is calculated.
In specific implementation, the current centripetal characteristic of vehicle can be calculated according to the driving parameters of the vehicle, from
And know road conditions described in the vehicle.
In specific implementation, according to a variety of centripetal characteristics for calculating vehicle.For example the vehicle driving moment can be calculated
Turning radius, the centripetal force that vehicle is generated in negotiation of bends can also be calculated, vehicle can also be calculated in negotiation of bends
The centripetal acceleration of generation.
In an embodiment of the present invention, it can be calculated by the following formula one of described centripetal characteristic, turning radius:
R=L/sin (A/N), in which: R is the turning radius, and L is the wheelbase of the vehicle, and A turns for the steering wheel
Angle signal, N are the transmission ratio of steering wheel and wheel steering.
In an alternative embodiment of the invention, one of described centripetal characteristic, the vehicle can be calculated by the following formula
The centripetal force generated in negotiation of bends:
F=MV2* sin (A/N)/L, in which: F is the centripetal force that the vehicle is generated in negotiation of bends, and M is driver
Weight, V be the vehicle travel speed, L be the vehicle wheelbase, A be the steering wheel angle signal, N is direction
The transmission ratio of disk and wheel steering.
In an alternative embodiment of the invention, one of described centripetal characteristic, the vehicle can be calculated by the following formula
The centripetal acceleration generated in negotiation of bends:
A=V2* sin (A/N)/L, in which: a is the centripetal acceleration that the vehicle is generated in negotiation of bends, and M is to drive
The weight of member, V are the travel speed of the vehicle, and L is the wheelbase of the vehicle, and A is the steering wheel angle signal, and N is side
To the transmission ratio of disk and wheel steering.
S13: the current centripetal characteristic of the vehicle being calculated is compared with preset centripetal characteristic threshold value
Compared with judging whether to control the seat on the vehicle.
In specific implementation, when being in different road drivings due to vehicle, the centripetal characteristic of the vehicle is had
Institute is different, therefore can be by comparing the centripetal characteristic for the vehicle being calculated and preset centripetal characteristic threshold value
Compared with going to judge whether to control the seat on the vehicle then according to comparison result.Wherein, the centripetal characteristic threshold value
It is corresponded with every kind of centripetal characteristic, i.e. the corresponding determining centripetal characteristic threshold value of every kind of centripetal characteristic.Also,
The centripetal characteristic threshold value are as follows: when additional support and control need not be provided for seat, the centripetal characteristic data value of the vehicle.
In an embodiment of the present invention, when the centripetal characteristic value is centripetal acceleration, when the institute being calculated
When stating the centripetal characteristic of vehicle and being greater than the corresponding threshold value of the centripetal acceleration, needs can be determined on the vehicle
Seat side support is controlled.
For example, the travel speed when the vehicle is 40km/h, steering wheel angle signal is shown as 90 °, steering wheel and vehicle
Rotate to transmission ratio be 15, the turning radius of the vehicle is calculated according to above-mentioned formula by vehicle wheelbase 2.7m are as follows:
25.8m, centripetal acceleration 4.77m/s2, the corresponding threshold value of the centripetal acceleration is 4m/s2(according to human body and leather seat
Coefficient of friction 0.4 is calculated) can determine at this time can to the seat on the vehicle open seat side support and control.
It is understood that going to judge whether to seat according to the negotiation of bends parameter of vehicle described in the embodiment of the present invention
Chair is controlled, and is only recognized the need for a kind of method controlled seat state, is not limited the present invention in any way,
In specific implementation, those skilled in the art can select other to judge whether to control seat according to actual needs
Method or condition.
To more fully understand those skilled in the art and realizing the present invention, the following provide one kind may be implemented it is above-mentioned
The device of bend knowledge method for distinguishing.
Fig. 2 shows the device of one of embodiment of the present invention seat state identification, described device 1 may include: inspection
Survey unit 11, computing unit 12 and the first judging unit 13, in which:
The detection unit 11, is adapted to detect for the driving parameters of vehicle；
The computing unit 12 calculates the current centripetal characteristic of vehicle suitable for the driving parameters according to the vehicle；
First judging unit 13, suitable for the centripetal characteristic for the vehicle that the computing unit 12 is calculated
It is compared according to preset centripetal characteristic threshold value, judges whether to control the seat on the vehicle.
In specific implementation, the driving parameters of the vehicle, comprising: the travel speed and steering wheel angle of the vehicle are believed
Number.
In specific implementation, the current centripetal characteristic of the vehicle, comprises at least one of the following: turning radius, institute
State the centripetal force and centripetal acceleration that vehicle is generated in negotiation of bends.
In an embodiment of the present invention, the computing unit 12 may include the first computation subunit 121, be suitable for by with
Lower formula calculates the current centripetal characteristic of the vehicle:
R=L/sin (A/N), in which: R is the turning radius, and L is the wheelbase of the vehicle, and A turns for the steering wheel
Angle signal, N are the transmission ratio of steering wheel and wheel steering.
In an alternative embodiment of the invention, the computing unit 12 may include the second computation subunit 122, suitable for passing through
Following formula calculates the current centripetal characteristic of the vehicle:
F=MV2* sin (A/N)/L, in which: M is the weight of driver, and V is the travel speed of the vehicle, and L is described
The wheelbase of vehicle, A are the steering wheel angle signal, and N is the transmission ratio of steering wheel and wheel steering.
In an alternative embodiment of the invention, the computing unit 12 may include third computation subunit 123, suitable for passing through
Following formula calculates the current centripetal characteristic of the vehicle:
A=V2* sin (A/N)/L, in which: a is the centripetal acceleration that the vehicle is generated in negotiation of bends, and V is described
The travel speed of vehicle, L are the wheelbase of the vehicle, and A is the steering wheel angle signal, and N is steering wheel and wheel steering
Transmission ratio.
In order to further improve the comfort of drive safety and seat when vehicle is in negotiation of bends state, below
Provide a kind of method of chair control.
Fig. 3 shows the flow diagram of the method for one of embodiment of the present invention chair control, below with reference to Fig. 3 pairs
The specific steps that the seat control method is related to describe in detail:
S31: identify whether to control the seat.
In an embodiment of the present invention, motion state described in the vehicle of the seat can be installed by judgement to judge to be
No to control the seat, when determining that the vehicle is in negotiation of bends state, determination controls the seat,
When determining that the vehicle is in non-negotiation of bends state, the seat is not controlled.
For example, the driving parameters of vehicle can be detected first, then according to the driving parameters of the vehicle, calculates vehicle and work as
Preceding centripetal characteristic, then by the centripetal characteristic for the vehicle being calculated and preset centripetal characteristic threshold value into
Row compares, and finally judges whether to control seat.So, since the driving parameters of the vehicle are existing vehicle
In the parameter of measurement, so there is no need to additionally increase corresponding sensor, therefore the cost of chair control can be reduced.
In specific implementation, the drive parameter can be a variety of, for example can be the travel speed of the vehicle, can also
Think hand-wheel signal.
Correspondingly with the drive parameter, the centripetal characteristic of the vehicle may be a variety of.It for example can be to turn
Curved radius, or the centripetal force that the vehicle is generated in negotiation of bends can also be centripetal acceleration.
In an embodiment of the present invention, following formula can be used, calculate the turning radius of the vehicle:
R=L/sin (A/N), in which: R is the turning radius, and L is the wheelbase of the vehicle, and A turns for the steering wheel
Angle signal, N are the transmission ratio of steering wheel and wheel steering.
In an alternative embodiment of the invention, following formula can be used, calculate the centripetal force of the vehicle:
F=MV2* sin (A/N)/L, in which: M is the weight of driver, and V is the travel speed of the vehicle, and L is described
The wheelbase of vehicle, A are the steering wheel angle signal, and N is the transmission ratio of steering wheel and wheel steering.
It is understood that by going to determine the need for controlling seat to the vehicle state in which, only
It is a kind of judgment method, those skilled in the art in actual use, can according to need the suitable method of selection and judge whether
Seat is controlled, but no matter selects and how to judge whether to control seat, in protection scope of the present invention
It is interior.
After identification needs to control seat, S32 is executed, otherwise, executes S33.
S32: the support pressure value of airbag at left and right sides of detection seat.
In specific implementation, when confirmation does not control the seat, it can detecte the vehicle and be in non-bend
When driving status, the support pressure value of airbag at left and right sides of seat, thus when being informed in guarantee user's normal driving vehicle, it is described
Airbag needs support pressure value to be offered at left and right sides of seat.
S33: the support pressure value of airbag at left and right sides of the seat is detected.
In specific implementation, when confirmation controls the seat, it can detecte the vehicle and be in negotiation of bends
When state, the support pressure value of airbag at left and right sides of the seat, so, so that it may obtain vehicle and be in negotiation of bends shape
When state, since the effect of centripetal force etc. is so that influence of the user to the pressure value of the airbag generation of the seat.
S34: judge the direction of the vehicle driving.
In an embodiment of the present invention, in order to which the left and right sides airbag targetedly to the seat does corresponding adjustment
And control, it can be determined that the direction of the vehicle driving, the direction of the vehicle driving can be the side of vehicle bend traveling
To.
In specific implementation, it can be gone to judge the vehicle bend traveling according to the steering wheel angle signal of the vehicle
Method can determine that the direction of the vehicle bend traveling is a left side when the steering wheel angle signal of the vehicle is greater than zero, when
When the steering wheel angle signal of the vehicle is less than zero, it can determine that the direction of the vehicle bend traveling is the right side.
S35: according to the direction of the vehicle driving and the difference of the support pressure value, accordingly by air pump to described
The support pressure value of airbag is respectively controlled at left and right sides of seat.
In specific implementation, when being in negotiation of bends state in order to ensure the vehicle, the safety of the driver and
Comfort, the direction and the vehicle that can be travelled according to the vehicle bend are in negotiation of bends state and non-negotiation of bends shape
The difference of the support pressure value of state is distinguished accordingly by support pressure value of the air pump to airbag at left and right sides of the seat
It is controlled.
In an embodiment of the present invention, when the direction of vehicle bend traveling is left, it can control the air pump and stop
Only it is inflation on the right side of the seat, continues as inflation on the left of the seat, until the support pressure value on the left of the seat is equal to
The vehicle is in support pressure value when non-negotiation of bends state on the left of the seat.
It is understood that the body of driver may incline to the left when the direction of vehicle bend traveling is left
Tiltedly, to be pressed in the left side of the seat, if the support pressure value in the left side of the seat does not make any adjustments, due to described
The inclination of driver's body can make the right crus of diaphragm of the driver leave the pedal for needing to control, to cause driving accident.
This control measure in an embodiment through the invention can avoid this problem, drive when so as to promote negotiation of bends
The safety sailed and comfort.
In an alternative embodiment of the invention, it when the direction of vehicle bend traveling is right, controls the air pump and stops
For air bag inflator on the left of the seat, air bag inflator on the right side of the seat is continued as, until the support of seat right side airbag
Pressure value is equal to the support pressure value that the vehicle is in airbag on the right side of seat when non-negotiation of bends state.So,
I.e. can avoid due to centripetal force influence, the driver that may cause to the out of control of vehicle caused by traffic accident.
In specific implementation, in order to improve the humanization level that negotiation of bends controls, it may also receive from the tune of user
Action signal is saved, and adjusts accordingly the support pressure value of airbag at left and right sides of the seat according to the adjusting action signal,
So that seat can be adjusted the state to the most comfortable according to demands of individuals by user.
In an embodiment of the present invention, in order to improve the intelligence that negotiation of bends controls, the user couple can also be recorded
The adjustment of the support pressure value of airbag is as a result, when vehicle is again started up and user is not detected to described at left and right sides of the seat
When seat is adjusted, the support pressure value of airbag at left and right sides of the seat is initialized to the adjustment end value.In this way
As soon as same user need not adjust every time, the seat state for being suitble to oneself can be enjoyed, to improve the comfortable of driving
Property.
To more fully understand those skilled in the art and realizing the present invention, one kind also provided below be may be implemented
State the device of the method for negotiation of bends control.
Fig. 4 shows the device of one of embodiment of the present invention chair control, and described device 2 may include: that identification is single
Member 21, first detection unit 22, second detection unit 23, second judgment unit 24 and control unit 25, in which:
The recognition unit 21 controls the seat suitable for identifying whether；
The first detection unit 22, suitable for examining when the recognition unit 21 confirmation does not control the seat
Survey the support pressure value of airbag at left and right sides of the seat；
The second detection unit 23 is suitable for after the recognition unit 21 confirms to the chair control, described in detection
The support pressure value of airbag at left and right sides of seat；
The second judgment unit 24, the direction of the vehicle driving suitable for judging to be equipped with the seat；
Described control unit 25, suitable for according to the support pressure value in the direction and vehicle of the vehicle driving
Difference is respectively controlled accordingly by support pressure value of the air pump to airbag at left and right sides of the seat.
In specific implementation, the recognition unit 21 works as knowledge suitable for identifying whether the vehicle is in negotiation of bends state
When the not described vehicle is in negotiation of bends state, determination controls the seat, when the identification vehicle is in non-bend
When driving status, determination is not controlled the seat.
In specific implementation, the recognition unit 21 may include:
Detection sub-unit 211 is adapted to detect for the driving parameters of vehicle.
Computation subunit 212 calculates the current centripetal characteristic of vehicle suitable for the driving parameters according to the vehicle.
Judgment sub-unit 213, suitable for by the centripetal characteristic for the vehicle being calculated and preset centripetal feature
Threshold value is compared, and judges whether vehicle is in negotiation of bends state.
In specific implementation, the driving parameters of the vehicle may include: that the travel speed of the vehicle and steering wheel turn
Angle signal.
In specific implementation, the current centripetal characteristic of the vehicle, may include following at least one: turning half
The centripetal force and centripetal acceleration that diameter, the vehicle are generated in negotiation of bends.
In an embodiment of the present invention, the turning radius can be calculated by the following formula:
R=L/sin (A/N), in which: R is the turning radius, and L is the wheelbase of the vehicle, and A turns for the steering wheel
Angle signal, N are the transmission ratio of steering wheel and wheel steering.
In an alternative embodiment of the invention, the centripetal force can be calculated by the following formula:
F=MV2* sin (A/N)/L, in which: M is the weight of driver, and V is the travel speed of the vehicle, and L is described
The wheelbase of vehicle, A are the steering wheel angle signal, and N is the transmission ratio of steering wheel and wheel steering.
In specific implementation, the second judgment unit 24 can detecte the steering wheel angle signal of the vehicle, work as institute
When stating the steering wheel angle signal of vehicle greater than zero, determine that the direction of the vehicle bend traveling is a left side, when the side of the vehicle
When to disk angular signal less than zero, determine that the direction of the vehicle bend traveling is the right side.
In specific implementation, described control unit 25 can control institute when the direction of vehicle bend traveling is left
It states air pump and stops being inflation on the right side of the seat, inflation on the left of the seat is continued as, until the branch bulging on the left of the seat
Force value is equal to the vehicle and is in support pressure value when non-negotiation of bends state on the left of the seat.
When the direction of vehicle bend traveling is right, described control unit 25 can also control the air pump stopping and be
Air bag inflator on the left of the seat continues as air bag inflator on the right side of the seat, until the branch bulging of seat right side airbag
Force value is equal to the support pressure value that the vehicle is in airbag on the right side of seat when non-negotiation of bends state.
Fig. 5 shows the schematic diagram of the device of the control of another negotiation of bends in the embodiment of the present invention, relative in Fig. 4
Shown in negotiation of bends control device 2, remove the recognition unit 31, first detection unit 32, second detection unit 33, second
Outside judging unit 34 and control unit 35, the device 3 of the negotiation of bends control can also include: to adjust unit 36 and record
Member 37, in which:
The adjusting unit 36 is suitable for receiving adjusting action signal from the user, and according to the adjusting action signal
Adjust accordingly the support pressure value of airbag at left and right sides of the seat.
The recording unit 37, suitable for recording the user to the tune of the support pressure value of airbag at left and right sides of the seat
Whole result；
The adjusting unit 36 is further adapted for that the seat is adjusted when vehicle is again started up and user is not detected
When, the support pressure value of airbag at left and right sides of the seat is initialized to the adjustment result of the recording unit records
Value.
It is understood that those skilled in the art can respectively refer to above-mentioned detect recognition unit 31, first in Fig. 4
The recognition unit 31, are implemented in the description of unit 32, second detection unit 33, second judgment unit 34 and control unit 35
One detection unit 32, second detection unit 33, second judgment unit 34 and control unit 35, details are not described herein again.
To make those skilled in the art more fully understand the realization present invention, referring to Fig. 6 in the embodiment of the present invention
The bend of use identifies and the principle of negotiation of bends control describes in detail.
Fig. 6 show the present invention implementation one of the system of chair control schematic diagram, the system may include: with
The device 61 of any one chair control, the support airbag 62 at left and right sides of seat, at left and right sides of seat
Pressure sensor 63, regulation button 64, switching device 65 and air pump 66, in which:
The pressure sensor 63 is suitable for the support of measure setup support airbag of airbag 62 at left and right sides of the seat
Pressure value.
The switching device 65 is suitable for controlling the switch of the air pump 66, to realize to airbag at left and right sides of the seat
The inflation/deflation of airbag 62 is supported, the inflation of the air pump depends on 2 factors: the state of the switching device 65 and the air pump
66 control time, the deflation course of the air pump 66 only can need to turn off the switch device 65 and allow airbag under human pressure
It is automatic to lose heart.
In an embodiment of the present invention, the switching device 65 can be electromagnetic valve device.
It should be noted that the device 61 of the chair control is further adapted for receiving adjusting of the user to the regulation button 64
Movement, and the inflation/deflation of the support airbag 62 is wanted with meeting the different covering properties of seat according to the adjusting action control
It asking, while once adjusted successfully, the pressure value of adjusting can also be recorded, and carry out automatic adjusument in the process of moving,
Lateral support is set to remain at comfortable position.If do not adjusted, described device may call upon the initial default pressure of system
Value.
After determining engine start, the device 61 of the chair control can be received by CAN bus from vehicle
Driving parameters signal, such as speed signal, steering wheel angle signal, yaw detector signal, then according to the driving parameters
The current centripetal characteristic of the vehicle is calculated, and the end value of the calculating and preset centripetal characteristic threshold value are compared
Compared with judging whether the vehicle comes into negotiation of bends, then if the vehicle is in negotiation of bends state, it can be determined that
The direction of vehicle bend traveling, according to the direction that the vehicle bend travels, correspondingly to the pressure of two lateral airbag of seat
Value is adjusted.
And, if it is determined that the vehicle is under non-negotiation of bends state, also be can receive user and is passed through the adjusting
The adjustment signal that button is sent, and opening and closing for the switching device is controlled according to the adjustment signal, so that the seat
The support pressure value of left and right sides airbag is corresponding with the adjustment signal.
In conclusion the system of the chair control, both can pass through tune when the vehicle is in negotiation of bends state
The support pressure value of airbag at left and right sides of the seat is saved, so that user's holding is driven to the normal driving of vehicle, so that it is guaranteed that
Traffic safety, and can be when the vehicle is in non-negotiation of bends state, according to the demand adjusting for driving user
Pressure value is supported, so that the seat is in so that the comfortable state of the driving user, to improve the comfort of vehicle.And
And component or parameter referred to above is not necessarily to additionally increase component acquisition or control, thus entire bend can be reduced
Travel the cost of control.
Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of above-described embodiment is can
It is completed with instructing relevant hardware by program, which can store in computer readable storage medium, storage
Medium may include: ROM, RAM, disk or CD etc..
Although present disclosure is as above, present invention is not limited to this.Anyone skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (19)
1. a kind of method of chair control characterized by comprising
Identify whether to control the seat；
When confirmation does not control the seat, the support pressure value of airbag at left and right sides of the seat is detected；
When confirmation controls the seat, the support pressure value of airbag at left and right sides of the seat is detected；
Judgement is equipped with the direction of the vehicle driving of the seat；
According to the direction of the vehicle driving and the difference of the support pressure value, accordingly by air pump to described seat or so
The support pressure value of two lateral airbags is respectively controlled；
The direction according to the vehicle driving and the difference for supporting pressure value, accordingly by air pump to the seat
The support pressure value of left and right sides airbag is respectively controlled, comprising:
When the direction of the vehicle driving is left, controls the air pump and stop being air bag inflator on the right side of the seat, continue as
Air bag inflator on the left of the seat, until the support pressure value of airbag does not carry out the seat equal to confirmation on the left of the seat
The support pressure value of detected seat left side airbag when control；
When the direction of the vehicle driving is right, controls the air pump and stop being air bag inflator on the left of the seat, continue as
Air bag inflator on the right side of the seat, until the support pressure value of airbag does not carry out the seat equal to confirmation on the right side of the seat
The support pressure value of detected seat right side airbag when control.
2. the method for chair control according to claim 1, which is characterized in that described to identify whether to carry out the seat
Control, comprising:
Identify whether the vehicle is in negotiation of bends state, when determining that the vehicle is in negotiation of bends state, determining pair
The seat is controlled, and when determining that the vehicle is in non-negotiation of bends state, determination is not controlled the seat.
3. the method for chair control according to claim 2, which is characterized in that whether the identification vehicle is in curved
Road driving status, comprising:
Detect the driving parameters of the vehicle；
According to the driving parameters of the vehicle, the current centripetal characteristic of the vehicle is calculated；
The current centripetal characteristic of the vehicle being calculated is compared with preset centripetal characteristic threshold value, judges institute
State whether vehicle is in negotiation of bends state.
4. the method for chair control according to claim 3, which is characterized in that the driving parameters of the vehicle include: institute
State the travel speed and steering wheel angle signal of vehicle.
5. the method for chair control according to claim 4, which is characterized in that the current centripetal characteristic of the vehicle
According to comprising at least one of the following: the centripetal force and centripetal acceleration that turning radius, the vehicle are generated in negotiation of bends.
6. the method for chair control according to claim 5, which is characterized in that the current centripetal characteristic of the vehicle
For the turning radius, the driving parameters according to the vehicle calculate the current centripetal characteristic of the vehicle, packet
It includes:
R=L/sin (A/N)；
Wherein: R be the turning radius, L be the vehicle wheelbase, A be the steering wheel angle signal, N be steering wheel with
The transmission ratio of wheel steering.
7. the method for chair control according to claim 5, which is characterized in that the current centripetal characteristic of the vehicle
For the centripetal force, the driving parameters according to the vehicle calculate the current centripetal characteristic of the vehicle, comprising:
F=MV2*sin(A/N)/L；
Wherein: F is the centripetal force, and M is the weight of driver, and V is the travel speed of the vehicle, and L is the axis of the vehicle
Away from A is the steering wheel angle signal, and N is the transmission ratio of steering wheel and wheel steering.
8. the method for chair control according to claim 5, which is characterized in that the current centripetal characteristic of the vehicle
For the centripetal acceleration that the vehicle is generated in negotiation of bends, the driving parameters according to the vehicle calculate the vehicle
Current centripetal characteristic, comprising:
A=V2*sin(A/N)/L；
Wherein: a is the centripetal acceleration that the vehicle is generated in negotiation of bends, and V is the travel speed of the vehicle, and L is institute
The wheelbase of vehicle is stated, A is the steering wheel angle signal, and N is the transmission ratio of steering wheel and wheel steering.
9. the method for chair control according to claim 4, which is characterized in that the vehicle for judging to be equipped with the seat
Traveling direction, comprising:
Detect the steering wheel angle signal；
When the steering wheel angle signal is greater than zero, determine the direction of the vehicle driving for a left side；
When the steering wheel angle signal is less than zero, determine the direction of the vehicle driving for the right side.
10. the method for chair control according to claim 1, which is characterized in that further include:
Adjusting action signal from the user is received, and described seat or so two is adjusted accordingly according to the adjusting action signal
The support pressure value of lateral airbag.
11. the method for chair control according to claim 10, which is characterized in that further include:
The user is recorded to the adjustment of the support pressure value of airbag at left and right sides of the seat as a result, work as vehicle be again started up and
When the user is not detected the seat being adjusted, the support pressure value of airbag at left and right sides of the seat is initialized
To the adjustment result.
12. a kind of device of chair control characterized by comprising
Recognition unit controls the seat suitable for identifying whether；
First detection unit, suitable for it is left to detect the seat when recognition unit confirmation does not control the seat
The support pressure value of right two lateral airbags；
Second detection unit, suitable for detecting described seat or so when recognition unit confirmation controls the seat
The support pressure value of two lateral airbags；
Second judgment unit, the direction of the vehicle driving suitable for judging to be equipped with the seat；
Control unit, suitable for the difference according to the direction of the vehicle driving and the support pressure value, accordingly by air pump
The support pressure value of airbag at left and right sides of the seat is respectively controlled；
Described control unit stops being that the seat is right suitable for controlling the air pump when the direction of the vehicle driving is left
Lateral airbag inflation, continues as air bag inflator on the left of the seat, until the support pressure value of airbag is equal to true on the left of the seat
Recognize the support pressure value of airbag on the left of the seat detected when not controlling the seat；When the vehicle driving
Direction when being right, control the air pump and stop being air bag inflator on the left of the seat, continue as airbag on the right side of the seat and fill
Gas, until the support pressure value of airbag is equal to institute detected when confirmation does not control the seat on the right side of the seat
State the support pressure value of airbag on the right side of seat.
13. the device of chair control according to claim 12, which is characterized in that the recognition unit is suitable for identification institute
State whether vehicle is in negotiation of bends state, when identifying that the vehicle be in negotiation of bends state, determination to the seat into
Row control, when identifying that the vehicle is in non-negotiation of bends state, determination is not controlled the seat.
14. the device of chair control according to claim 13, which is characterized in that the recognition unit, comprising:
Detection sub-unit is adapted to detect for the driving parameters of the vehicle；
Computation subunit calculates the current centripetal characteristic of vehicle suitable for the driving parameters according to the vehicle；
Judgment sub-unit, suitable for centripetal characteristic and preset centripetal characteristic threshold value that the vehicle being calculated is current
It is compared, judges whether the vehicle is in negotiation of bends state.
15. the device of chair control according to claim 14, which is characterized in that the driving parameters of the vehicle include:
The travel speed and steering wheel angle signal of the vehicle.
16. the device of chair control according to claim 15, which is characterized in that the current centripetal characteristic of the vehicle
According to comprising at least one of the following: the centripetal force and centripetal acceleration that turning radius, the vehicle are generated in negotiation of bends.
17. the device of chair control according to claim 15, which is characterized in that the second judgment unit is suitable for inspection
The steering wheel angle signal is surveyed, when the steering wheel angle signal is greater than zero, determines that the direction of the vehicle driving is a left side,
When the steering wheel angle signal is less than zero, determine the direction of the vehicle driving for the right side.
18. the device of chair control according to claim 12, which is characterized in that further include:
Unit is adjusted, is suitable for receiving adjusting action signal from the user, and adjusted accordingly according to the adjusting action signal
The support pressure value of airbag at left and right sides of the seat.
19. the device of chair control according to claim 18, which is characterized in that further include:
Recording unit, suitable for recording the user to the adjustment result of the support pressure value of airbag at left and right sides of the seat；
The adjusting unit is further adapted for the user is again started up and be not detected when vehicle when the seat is adjusted,
The support pressure value of airbag at left and right sides of the seat is initialized to the adjustment result of the recording unit records.
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| CN201510963660.4A CN106891782B (en) | 2015-12-18 | 2015-12-18 | The method and device of chair control |
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| CN201510963660.4A CN106891782B (en) | 2015-12-18 | 2015-12-18 | The method and device of chair control |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109572495A (en) * | 2017-09-29 | 2019-04-05 | 比亚迪股份有限公司 | The control system and control method of vehicle, seat |
| CN107901792B (en) * | 2017-10-31 | 2020-09-22 | 深圳创维汽车智能有限公司 | Automobile seat adjusting method and device and computer readable storage medium |
| CN108312899A (en) * | 2018-03-27 | 2018-07-24 | 新日(无锡)发展有限公司 | The automotive seat adaptively adjusted based on pressure sensitive |
| CN110155071A (en) * | 2019-05-31 | 2019-08-23 | 苏州蓝石新动力有限公司 | A kind of gesture recognition method, device and storage medium |
| CN110949223B (en) * | 2019-12-30 | 2021-08-13 | 东风汽车有限公司 | Vehicle seat control method, storage medium, and electronic device |
| CN113147650B (en) * | 2021-06-07 | 2022-08-05 | 上海舒井汽车系统科技有限公司 | Automobile auxiliary supporting system and method |
| CN113799665B (en) * | 2021-10-29 | 2022-11-22 | 北京经纬恒润科技股份有限公司 | Seat support control method and device |
| CN114132275B (en) * | 2021-11-04 | 2023-01-24 | 东风汽车集团股份有限公司 | Method, device and equipment for improving comfort degree of cabin and readable storage medium |
| CN114132231B (en) * | 2021-12-28 | 2023-01-20 | 上海洛轲智能科技有限公司 | Vehicle seat adjusting method and device and vehicle |
| CN115071516A (en) * | 2022-07-14 | 2022-09-20 | 芜湖雄狮汽车科技有限公司 | Seat adjustment method and device for vehicle, vehicle and storage medium |
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