CN108657102A - A kind of vehicle safety method, system and running crane control device - Google Patents
A kind of vehicle safety method, system and running crane control device Download PDFInfo
- Publication number
- CN108657102A CN108657102A CN201710215986.8A CN201710215986A CN108657102A CN 108657102 A CN108657102 A CN 108657102A CN 201710215986 A CN201710215986 A CN 201710215986A CN 108657102 A CN108657102 A CN 108657102A
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- China
- Prior art keywords
- vehicle
- air bag
- relatively transverse
- speed
- lateral motion
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
- B60R21/0132—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to vehicle motion parameters, e.g. to vehicle longitudinal or transversal deceleration or speed value
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
- B60G17/04—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics
- B60G17/052—Pneumatic spring characteristics
- B60G17/0521—Pneumatic spring characteristics the spring having a flexible wall
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
- B60R21/0134—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to imminent contact with an obstacle, e.g. using radar systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/10—Type of spring
- B60G2202/15—Fluid spring
- B60G2202/152—Pneumatic spring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
- B60G2400/20—Speed
- B60G2400/204—Vehicle speed
- B60G2400/2042—Lateral speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2500/00—Indexing codes relating to the regulated action or device
- B60G2500/30—Height or ground clearance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2800/00—Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
- B60G2800/90—System Controller type
- B60G2800/91—Suspension Control
- B60G2800/914—Height Control System
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R2021/0002—Type of accident
- B60R2021/0006—Lateral collision
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
- B60R21/0134—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to imminent contact with an obstacle, e.g. using radar systems
- B60R2021/01345—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to imminent contact with an obstacle, e.g. using radar systems using mechanical sensing means
Abstract
A kind of vehicle safety method, system and running crane control device, the means of defence include：Obtain the vehicle of the vehicular sideview and the relative lateral motion parameter of the vehicle；Wherein：The relative lateral motion parameter includes：Relatively transverse speed and relatively transverse distance；According to the relative lateral motion parameter, judge whether that side impact operating mode can occur；When side impact operating mode can occur for determination, vehicle body is raised.Using the above scheme, the damaged vehicle degree in collision can be reduced and improved to the protection of Vehicular occupant.
Description
Technical field
The present invention relates to a kind of Car design field more particularly to vehicle safety method, system and thermoacoustic prime engine dresses
It sets.
Background technology
With the continuous development of vehicle, vehicle is being increasingly becoming a part indispensable in the modern life.Also, vehicle
Intellectualized technology is gradually applied, and user can easily and safely make a phone call on vehicle, listen to music, receive and dispatch
Information uses navigation etc..It is contemplated that many new systems, new results will appear as well in the electronization of vehicle, intelligence, make driving
Vehicle becomes more environmentally-friendly, energy saving, comfortable and pleasant.But no matter how vehicle develops, travel safety is it in weight
Weight.
Currently, for the safety of passenger in support vehicles, current vehicle speed can be acquired, judges whether to occur according to current vehicle speed
Vehicle collision discharges corresponding protection air bag if vehicle collision has occurred.
But above-mentioned vehicle safety method, there is damaged vehicle is serious and protection to Vehicular occupant
Low problem.
Invention content
Problems solved by the invention is how to reduce the protection of damaged vehicle degree and raising to Vehicular occupant in collision
Dynamics.
To solve the above problems, an embodiment of the present invention provides a kind of vehicle safety method, the method includes：It obtains
Take the vehicle of the vehicular sideview and the relative lateral motion parameter of the vehicle；Wherein：The relative lateral motion parameter packet
It includes：Relatively transverse speed and relatively transverse distance；According to the relative lateral motion parameter, judge whether that side impact work can occur
Condition；When side impact operating mode can occur for determination, vehicle body is raised.
Optionally, described according to the relative lateral motion parameter, judge whether that side impact operating mode can occur, including：Work as institute
When stating relatively transverse speed less than preset first relatively transverse threshold speed, side impact operating mode will not occur for determination；When the phase
When being more than preset second relatively transverse threshold speed to lateral velocity, side impact operating mode can occur for determination；Described second is relatively horizontal
It is more than the described first relatively transverse threshold speed to threshold speed.
Optionally, described according to the relative lateral motion parameter, judge whether that side impact operating mode can occur, further includes：When
The relatively transverse speed is more than the described first relatively transverse threshold speed, and is less than the described second relatively transverse threshold speed
When, judge whether the relatively transverse distance is less than preset relatively transverse distance threshold；Wherein：It is described relatively transverse apart from threshold
Value and the relative lateral motion velocity correlation；When the relatively transverse distance is less than the relatively transverse distance threshold, really
Surely side impact operating mode can occur.
Optionally, the relatively transverse distance threshold meets following relationship with the relative lateral motion speed, including：
vtFor relative lateral motion speed, SmaxFor relatively transverse distance threshold, β be the vehicle of vehicular sideview wheel with
Friction factor between ground, g are acceleration of gravity.
Optionally, the raised part between vehicle body and the suspension system of the vehicle is set to by control to raise vehicle
Body.
Optionally, the raised part includes：Air bag, the air bag are set to the crossbeam central part with the suspension system
The body bottom of split-phase pair.
Optionally, the raised part further includes the pallet for being set to the beam surface, is placed in below the air bag；And
The pallet is more than the accessible area of the crossbeam and the air bag with the accessible area of the air bag.
Optionally, after the air bag expansion it is cuboid, and the contact surface of the air bag and the pallet is rectangle.
Optionally, gas vent is not arranged for the air bag.
Optionally, described that raised part between vehicle body and the suspension system of the vehicle is set to raise by control
Vehicle body, including：So that the air bag is expanded to the air bag output current, raises vehicle body.
Optionally, the relative lateral motion parameter of the vehicle and the vehicle of the vehicular sideview is obtained by radar.
Optionally, 4 radars are provided on vehicle, and 4 radars are respectively arranged at 4 vehicles of the vehicle
At door handle.
An embodiment of the present invention provides a kind of running crane control device, described device includes：Acquiring unit is suitable for obtaining vehicle
The relative lateral motion parameter of the vehicle of side and the vehicle；Wherein：The relative lateral motion parameter includes：It is relatively transverse
Speed and relatively transverse distance；Judging unit is suitable for, according to the relative lateral motion parameter, judging whether that side impact work can occur
Condition；Vehicle body control unit, suitable for when side impact operating mode can occur for determination, raising vehicle body.
Optionally, the judging unit is suitable for being less than the preset first relatively transverse speed when the relatively transverse speed
When threshold value, side impact operating mode will not occur for determination；When the relatively transverse speed is more than the preset second relatively transverse threshold speed
When, side impact operating mode can occur for determination；The second relatively transverse threshold speed is more than the described first relatively transverse threshold speed.
Optionally, the judging unit is suitable for being more than the preset first relatively transverse speed when the relatively transverse speed
Threshold value, and when less than preset second relatively transverse threshold speed, judge the relatively transverse distance whether less than preset phase
To lateral distance threshold value；Wherein：The relatively transverse distance threshold and the relative lateral motion velocity correlation；When described opposite
When lateral distance is less than the relatively transverse distance threshold, side impact operating mode can occur for determination.
Optionally, the relatively transverse distance threshold meets following relationship with the relative lateral motion speed, including：
vtFor relative lateral motion speed, SmaxFor relatively transverse distance threshold, β be the vehicle of vehicular sideview wheel with
Friction factor between ground, g are acceleration of gravity.
Optionally, the vehicle body control unit, suitable for be set to by control vehicle body and the vehicle suspension system it
Between raised part raise vehicle body.
Optionally, the raised part includes：Air bag, the air bag are set to the crossbeam central part with the suspension system
The body bottom of split-phase pair.
Optionally, the vehicle body control unit makes the air bag expand, raises suitable for control to the air bag output current
Vehicle body.
Optionally, the acquiring unit, the phase of vehicle and the vehicle suitable for obtaining the vehicular sideview by radar
To transverse movement parameter.
Optionally, 4 radars are provided on vehicle, and 4 radars are respectively arranged at 4 vehicles of the vehicle
At door handle.
An embodiment of the present invention provides a kind of safety protective system for vehicle, the system comprises：Raised part, radar and with
Upper any running crane control device, wherein：The raised part is coupled with the running crane control device；The driving control
Device processed is coupled with the radar；The radar is suitable for acquiring the relatively transverse of the vehicle of the vehicular sideview and the vehicle
Kinematic parameter；Wherein：The relative lateral motion parameter includes：Relatively transverse speed and relatively transverse distance.
Optionally, the raised part includes：Air bag, the air bag are set to the crossbeam with the suspension system of the vehicle
The opposite body bottom of central part.
Optionally, the raised part further includes the pallet for being set to the beam surface, is placed in below the air bag；And
The pallet is more than the accessible area of the crossbeam and the air bag with the accessible area of the air bag.
Optionally, after the air bag expansion it is cuboid, and the contact surface of the air bag and the pallet is rectangle.
Optionally, gas vent is not arranged for the air bag.
Optionally, the system also includes：Transformer, relay and vehicle power supply, wherein：The transformer, respectively with
The vehicle power supply and relay coupling, the electrical parameter of the electric current suitable for being inputted to vehicle power supply is adjusted, and is inputted
Electric current is to the air bag；The relay is coupled with the transformer, is suitable under the control of the running crane control device, phase
It is opened and closed with answering；The vehicle power supply is coupled with the transformer, is suitable under the control of the running crane control device, is passed through institute
Transformer is stated to power to the air bag.
Optionally, the running crane control device is suitable for controlling the relay and is closed, controls the vehicle power supply and pass through institute
Transformer is stated to the air bag output current, so that the air bag is expanded, raises vehicle body.
Compared with prior art, technical scheme of the present invention has the following advantages：
According to the damaged vehicle situation statistics in traffic accident, the higher SUV vehicles of vehicle body are impaired smaller, and vehicle body is relatively low
General car be damaged larger, and be mainly to come the longeron of vehicle and the B columns collided when finding that side impact occurs for two vehicles through analysis
It collides, if the vehicle body or chassis collided are elevated, the longeron for carrying out vehicle can be made to be touched with the sill strip collided
It hits, and the sill strip ratio B columns of vehicle are firmer, therefore the height of vehicle body, vehicle can be influenced under the operating modes such as collide
Degree of stability and extent of injury to passenger.Therefore, the vehicle of vehicular sideview and the relatively transverse fortune of the vehicle are obtained
Dynamic parameter, and then according to the relative lateral motion parameter, judge whether that side impact operating mode can occur, when side impact work can occur for determination
When condition, vehicle body is raised, the degree of damaged vehicle and is improved to the protection of Vehicular occupant when can reduce collision.
Further, it when relatively transverse speed is less than preset first relatively transverse threshold speed, characterizes to a certain extent
The probability or degree of passenger's injury are smaller, therefore side impact operating mode will not occur for determination, and do not raise vehicle body, can be to avoid multiple
Vehicle body is raised, therefore the loss of system energy consumption and raised part can be reduced, improves the service life of raised part.
Further, it when relatively transverse speed is more than preset second relatively transverse threshold speed, characterizes to a certain extent
The probability or degree of passenger's injury can be larger, therefore side impact operating mode can occur for determination, and directly raise vehicle body, can give car
The a degree of protection of passenger, therefore the degree of damaged vehicle and protection to Vehicular occupant is improved when can reduce collision
Degree.
Further, since air bag is relatively conventional and cheap, by being set to the crossbeam center with vehicle suspension system
The partly air bag of opposite body bottom realizes that vehicle body is raised during expansion, can reduce safety protective system for vehicle at
This.
Further, raised part further includes the pallet for being set to the beam surface, is placed in below the air bag, and described
Pallet is more than the accessible area of the crossbeam and the air bag with the accessible area of the air bag, can lifted to avoid air bag
Directly support force is pressed on crossbeam when high vehicle body, therefore the pressure to car beam can be reduced, and branch big as possible is provided
Support the support force of vehicle body.
Further, gas vent is not set on air bag, the maintenance duration that air bag remains inflated for can be improved, that is, keep vehicle
It is in and reaches the longer time in raised condition, therefore the protection to Vehicular occupant can be improved.
Further, the relatively transverse of vehicle that 4 are suitable for obtaining the vehicular sideview and the vehicle is provided on vehicle
The radar of kinematic parameter, and 4 radars are respectively arranged at 4 door handles of the vehicle, it can be relatively complete
It detects to face the relative movement parameters of the vehicle from the arbitrary side of vehicle, therefore obtaining for relative lateral motion parameter can be improved
The accuracy taken, so as to improve the reliability and accuracy of safety protective system for vehicle.
Description of the drawings
Fig. 1 is a kind of flow diagram of vehicle safety method in the embodiment of the present invention；
Fig. 2 is a kind of horizontal section of the connection relation of the suspension system of the raised part and vehicle in the embodiment of the present invention
Schematic diagram；
Fig. 3 is a kind of longitudinal profile of the connection relation of the suspension system of the raised part and vehicle in the embodiment of the present invention
Schematic diagram；
Fig. 4 is a kind of schematic diagram of the connection relation of the raised part and vehicle in the embodiment of the present invention；
Fig. 5 is a kind of structural schematic diagram of running crane control device in the embodiment of the present invention；
Fig. 6 is a kind of structural schematic diagram of safety protective system for vehicle in the embodiment of the present invention.
Specific implementation mode
As above, the vehicle safety method of the prior art, there are damaged vehicle it is serious and to the protection of vehicle it is low
Under problem.
To solve the above problems, the embodiment of the present invention obtains the relative lateral motion of the vehicle and the vehicle of vehicular sideview
Parameter, and then according to the relative lateral motion parameter, judge whether that side impact operating mode can occur, when side impact operating mode can occur for determination
When, vehicle body is raised, the degree of damaged vehicle and is improved to the protection of Vehicular occupant when can reduce collision.
To make the above purposes, features and advantages of the invention more obvious and understandable, below in conjunction with the accompanying drawings to the present invention
Specific embodiment be described in detail.
Fig. 1 shows a kind of flow diagram of vehicle safety method in the embodiment of the present invention, below with reference to Fig. 1
The method is discussed in detail step by step, the method may include following steps：
Step S11：Obtain the vehicle of the vehicular sideview and the relative lateral motion parameter of the vehicle.
In specific implementation, the relative lateral motion parameter may include：Relatively transverse speed and relatively transverse distance.
According to actual needs, those skilled in the art can also obtain other relative lateral motion parameters.It is understood that if
Collide operating mode, and the vehicle herein is by collision, and the vehicle of the vehicular sideview is that collision carrys out vehicle.
It in specific implementation, can be by radar, come the vehicle for detecting and obtaining the vehicular sideview and the vehicle
Relative lateral motion parameter.
In an embodiment of the present invention, 4 radars are provided on vehicle.Also, 4 radars are provided on vehicle
In the case of, in order to improve detection vehicular sideview vehicle and the relative lateral motion parameter of the vehicle it is comprehensive,
It invents in an embodiment, 4 radars can be respectively arranged at 4 door handles of the vehicle.It needs to illustrate
It is that according to actual needs, quantity and the position of radar can be arranged in those skilled in the art.
Step S12：Judge whether that side impact operating mode can occur.
It in specific implementation, can be according to the relative lateral motion parameter, to judge that the vehicle of the vehicle and side is
It is no that side impact operating mode can occur.
It in detail, can be with such as when the relatively transverse speed is less than preset first relatively transverse threshold speed
Side impact operating mode will not occur for determination, this is because vehicle is when by low speed object side collision, occupant's injury degree or by
The probability of wound can be relatively small.In an embodiment of the present invention, the first relatively transverse threshold speed v can be setminTo be not more than
The velocity amplitude of 1.5m/s, that is, meet vmin≤1.5m/s。
For another example, when the relatively transverse speed is more than preset second relatively transverse threshold speed, it may be determined that meeting
Side impact operating mode occurs, this is because when the speed that vehicle is collided in side is excessively high, vehicle is difficult emergency braking in the short time, centainly
The probability of passenger's injury is characterized in degree or degree can be larger.It is understood that the second relatively transverse threshold speed
More than the described first relatively transverse threshold speed.
In an embodiment of the present invention, according to the sides CNCAP crash tests standard, the second relatively transverse speed can be set
Threshold value VmaxFor the velocity amplitude not less than 15m/s, that is, meet vmax≥15m/s。
For another example, when the relatively transverse speed is more than the preset first relatively transverse threshold speed, and less than preset
When the second relatively transverse threshold speed, it can be determined that it is preset relatively transverse apart from threshold whether the relatively transverse distance is less than
Value, if the relatively transverse distance is less than the relatively transverse distance threshold, it may be determined that side impact operating mode can occur.Its
In, the relatively transverse distance threshold and the relative lateral motion velocity correlation.
Vehicle is when keeping certain speed to advance, and if necessary to brake, then brakes to vehicle since current speed
Static travelled distance and the current speed are that have certain relationship, and, it is understood that between two vehicles
Distance be more than vehicle brake required for travel apart from when, general two vehicle will not then collide, if between two vehicles
Distance be less than travelled required for vehicle brake apart from when, even if characterization vehicle reduces speed now brake, with separately
When an outer vehicle bumps against, speed does not reduce to zero yet, therefore two vehicles are certain to collide or side impact operating mode.Therefore it is being embodied
In, the relatively transverse distance threshold SmaxIt can meet the pass shown by following formula (1) with the relative lateral motion speed
System：
vtFor relative lateral motion speed, SmaxFor relatively transverse distance threshold, β be the vehicle of vehicular sideview wheel with
Friction factor between ground, g are acceleration of gravity.
When side impact operating mode can occur for determination, step S13 is executed；Conversely, step S11 can be executed.
Step S13：Raise vehicle body.
According to damaged vehicle statistical result statistics in traffic accident it is found that the height of vehicle body can influence vehicle is touching
The degree of stability under operating modes and the extent of injury to passenger such as hit.In detail, in collision, possess the vehicle of higher vehicle body
The extent of damage of the vehicle of the relatively low vehicle body of the extent of damage is lower, correspondingly, to passenger inside the vehicle and drives the injury of user
Degree is also lower.Therefore the degree of damaged vehicle and raising are determining meeting to the protection of Vehicular occupant when in order to reduce collision
When side impact operating mode occurs, vehicle body can be raised.
Currently, by acquiring current vehicle speed, is judged whether that vehicle collision occurs according to current vehicle speed, touched if vehicle has occurred
It hits, then discharges corresponding protection air bag, to protect vehicle and passenger inside the vehicle, the means of defence, it is serious and right that there are damaged vehicles
The low problem of the protection of Vehicular occupant.
And the embodiment of the present invention by obtain vehicular sideview vehicle and the vehicle relative lateral motion parameter, in turn
According to the relative lateral motion parameter, judge whether that side impact operating mode can occur, when side impact operating mode can occur for determination, raises vehicle
Body, therefore the degree of damaged vehicle and protection to Vehicular occupant is improved when can reduce collision.
In specific implementation, the raised part between vehicle body and the suspension system of the vehicle is set to by control to lift
High vehicle body.
To make those skilled in the art more fully understand and realizing the present invention, Fig. 2 shows in the embodiment of the present invention
A kind of horizontal section schematic diagram of the connection relation of the suspension system of raised part and vehicle, Fig. 3 show the embodiment of the present invention
In a kind of raised part and vehicle suspension system connection relation longitudinal profile schematic diagram, and in Fig. 2 and Fig. 3,
Using 23 direction of crossbeam in the suspension system of vehicle as X-direction, the direction of longeron 24 and longeron 25 is Y-direction.
With reference to shown in figure 2 and Fig. 3, the raised part, including：Air bag 21, the air bag 21 are set to and the suspension
The opposite body bottom of 23 central part of crossbeam of system.Also, since air bag 21 is relatively conventional and cheap, pass through setting
In the air bag 21 of the body bottom opposite with 23 central part of crossbeam of vehicle suspension system, the lift of vehicle body is realized during expansion
Height can reduce the cost of safety protective system for vehicle.
In specific implementation, the raised part further includes the pallet 22 for being set to 23 surface of the crossbeam, is placed in described
21 lower section of air bag.Since the accessible area of the pallet 22 and the air bag 21 is more than the crossbeam 23 and the air bag 21
Support force, can directly be pressed on crossbeam 23 to avoid air bag 21 when raising vehicle body, but be divided by pallet 22 by accessible area
The support force of a part is carried on a shoulder pole, therefore the pressure to car beam 23 can be reduced, and the support of support vehicle body big as possible is provided
Power.
In specific implementation, it is cuboid after the air bag 21 expands.And in order to further increase air bag 21 and pallet 22
Contact area, realize the contact closer with pallet 22 of air bag 21, the contact surface of the air bag 21 and the pallet 22 can be with
For rectangle.According to actual needs, the contact surface that pallet 22 can also be arranged is other shapes to those skilled in the art.
When vehicle collision occurs, vehicle body is kept for the time of higher height longer, and collision is smaller to the injury of passenger.By
This it is found that air bag 21 maintain swelling state the longer the better time, in order to improve the protection to Vehicular occupant, therefore specific
In implementation, gas vent can not be arranged for the air bag 21.
To make those skilled in the art more fully understand and realizing that the present invention, Fig. 4 are shown in the embodiment of the present invention
The schematic diagram of the connection relation of a kind of raised part and vehicle, similarly, in Fig. 4, with the crossbeam in the suspension system of vehicle
23 directions are X-direction, and the direction of longeron 24 and longeron 25 is Y-direction.
As shown in figure 4, longeron 24 and longeron 25 are coupled with the two of which tire (not shown) of vehicle respectively, air bag 21 is set
It is placed in vehicle body 41 bottom opposite with 23 central part of the crossbeam of the suspension system, it in specific implementation, can be by institute
21 output current of air bag is stated, to make the air bag 21 expand, and then raises vehicle body 41.It should be noted that being shown only in Fig. 4
The body structure schematic diagram of raised part is arranged in suspension system in the front of vehicle, and it is more preferable to be intended merely to those skilled in the art
Ground understands and realizes the present invention, is not construed as limiting to protection scope of the present invention.In specific implementation, those skilled in the art
Can also raised part only be set in the suspension system at the rear portion of vehicle, it can also be in the suspension system of the front of vehicle and rear portion
It is respectively provided with raised part.
To make those skilled in the art more fully understand and realizing that the present invention, Fig. 5 are shown in the embodiment of the present invention
A kind of structural schematic diagram of running crane control device, as shown in figure 5, the running crane control device may include：Acquiring unit 51 is sentenced
Disconnected unit 52 and vehicle body control unit 53, wherein：
Acquiring unit 51 is suitable for obtaining the relative lateral motion parameter of the vehicle and the vehicle of the vehicular sideview；Its
In：The relative lateral motion parameter includes：Relatively transverse speed and relatively transverse distance；
Judging unit 52 is suitable for, according to the relative lateral motion parameter, judging whether that side impact operating mode can occur；
Vehicle body control unit 53, suitable for when side impact operating mode can occur for determination, raising vehicle body.
To sum up, the embodiment of the present invention obtains the relatively transverse of vehicle and the vehicle of vehicular sideview by acquiring unit 51
Kinematic parameter, and then judging unit 52 according to the relative lateral motion parameter judges whether that side impact operating mode, vehicle body control can occur
Unit 53 processed raises vehicle body, damaged vehicle when can reduce collision when side impact operating mode can occur for the determination of the judging unit 52
Degree and improve to the protection of Vehicular occupant.
In specific implementation, the judging unit 52 is suitable for being less than preset first relatively when the relatively transverse speed
When lateral velocity threshold, side impact operating mode will not occur for determination；When the relatively transverse speed is relatively transverse more than preset second
When threshold speed, side impact operating mode can occur for determination；The second relatively transverse threshold speed is more than the described first relatively transverse speed
Spend threshold value.
In specific implementation, the judging unit 52 is suitable for being more than preset first relatively when the relatively transverse speed
Lateral velocity threshold, and less than preset second relatively transverse threshold speed when, judge whether the relatively transverse distance is less than
Preset relatively transverse distance threshold；Wherein：The relatively transverse distance threshold and the relative lateral motion velocity correlation；When
When the relatively transverse distance is less than the relatively transverse distance threshold, side impact operating mode can occur for determination.
In specific implementation, the relatively transverse distance threshold meets following formula with the relative lateral motion speed
(2) relationship shown：
vtFor relative lateral motion speed, SmaxFor relatively transverse distance threshold, β be the vehicle of vehicular sideview wheel with
Friction factor between ground, g are acceleration of gravity.
In an embodiment of the present invention, the value range of friction factor β meets 0.1≤β≤0.8.Those skilled in the art
The case where according to the road of vehicle actual travel, it is other numerical value that friction factor β, which can be arranged,.
In specific implementation, the vehicle body control unit 53, suitable for being set to the outstanding of vehicle body and the vehicle by control
Raised part between frame system raises vehicle body.
Since air bag is relatively conventional and cheap, in specific implementation, the raised part includes：Air bag, the gas
Capsule is set to the body bottom opposite with the crossbeam central part of the suspension system, therefore can reduce vehicle safety system
The cost of system.
In specific implementation, the vehicle body control unit 53, can control to the air bag output current makes the air bag
Expansion, and then raise vehicle body.
In specific implementation, the acquiring unit 51, suitable for obtained by radar the vehicle of the vehicular sideview with it is described
The relative lateral motion parameter of vehicle.
In an embodiment of the present invention, 4 radars are provided on vehicle, and 4 radars are respectively arranged at institute
It states at 4 door handles of vehicle, the accuracy of the acquisition of relative lateral motion parameter can be improved, so as to improve vehicle
The reliability and accuracy of security protection system.
To make those skilled in the art more fully understand and realizing that the present invention, Fig. 6 are shown in the embodiment of the present invention
A kind of structural schematic diagram of safety protective system for vehicle, as shown in fig. 6, the guard system may include：Raised part 63, thunder
Up to 61 and above-described any running crane control device 62, wherein：
The raised part 63 is coupled with the running crane control device 62.
The running crane control device 62 is coupled with the radar 61.
The radar 61 is suitable for acquiring the relative lateral motion parameter of the vehicle and the vehicle of the vehicular sideview.Its
In：The relative lateral motion parameter includes：Relatively transverse speed and relatively transverse distance.
In specific implementation, carry out vehicle when side with minimum relative velocity vminWhen collision, obtained by speed formulaS can be setminCan be that the type selecting of radar 61 is made for the minimum detectable range that radar 61 can detect
For reference.In an embodiment of the present invention, the radar 61 can be ultrasonic radar.
In an embodiment of the present invention, the running crane control device 62 can be car running computer (Electronic
Control Unit, ECU).
In specific implementation, it is usually to carry out the longeron of vehicle to collide with the B columns collided when side impact occurs for two vehicles,
And the vehicle body collided or chassis are raised by raised part 63, so that the longeron for carrying out vehicle is touched with the sill strip collided
The extent of damage of vehicle and the wound to occupant when hitting, and the sill strip ratio B columns of vehicle are firmer, therefore side impact can be effectively reduced
Evil.In an embodiment of the present invention, the value that the maximum rising height h0 of raised part 63 can be arranged is 80mm~120mm.
In specific implementation, the raised part 63 may include：Air bag 631.The air bag 631 is set to be hanged with described
The opposite body bottom of the crossbeam central part of frame system 633.
When being lifted to highest point due to vehicle body, air bag 631 is in fully expanded state, therefore the lifting duration of raised part 63
t0Raised part 63 can be set in an embodiment of the present invention from the shrivelled duration to needed for complete expansion equal to air bag 631
Required lifting duration t0For 1s~2s.
In specific implementation, the raised part 63 further includes the pallet 632 for being set to the beam surface, is placed in described
631 lower section of air bag.And the accessible area of the pallet 632 and the air bag 631 is more than the crossbeam and the air bag 631
Accessible area.
In specific implementation, since air bag 631 is installed on the body bottom opposite with the pallet 632 on crossbeam, and in order to
The shape for adapting to crossbeam, vehicle body is raised to provide enough support forces, and it is rectangle that air bag 631, which can be arranged,.If vehicle is horizontal
The circular section radius of beam is R m, length L m, and the spacing of crossbeam and body bottom is H1M, the height that suspension system 633 need to be lifted
H2M, the weight of suspension system 633 are M Kg, then raise requirement for height according to the size of crossbeam and raised part 63, can be arranged
The installation site of air bag 631Also the air bag 631 can be set to in the crossbeam of the suspension system 633
The body bottom of center portion split-phase pair.
In specific implementation, since air bag 631 is during expansion, to overcome gravity G, the crossbeam of suspension system 633
The resistance F of spring-damp system between vehicle body1And pressure caused by 631 pressure P of air bag, then it can determine needed for air bag 631
631 volume V of minimum expansive force F, 631 forced area S of air bag and air bag, meets the pass shown by following formula (3)~formula (5)
System：
F=G+F1 (3)
V=S*H (5)
In specific implementation, it is cuboid after the air bag 631 expands, and the air bag 631 and the support can be set
The contact surface of disk 632 is rectangle.
In specific implementation, pallet 632 is suitable for expanding forced area, and with support air bag 631, therefore pallet 632 can be arranged
It is arc-shaped.If the radius of pallet 632 is R1, long L1, wide B1, then the size of pallet 632 meet formula (6) and formula (7) institute
The relationship shown：
R1=2 (H1+H2) (6)
In specific implementation, gas vent is not arranged for the air bag 631.
In specific implementation, the concrete structure of the raised part 63 is referred to Fig. 2 and Fig. 3 is configured, herein not
It repeats again.
In specific implementation, the guard system can also include：Transformer 65, relay 66 and vehicle power supply 64,
In：
The transformer 65 is coupled with the vehicle power supply 64 and the relay 66 respectively, is suitable for vehicle power supply 64
The electrical parameter of the electric current of input is adjusted, and input current is to the air bag 631；
The relay 66 is coupled with the transformer 65, is suitable under the control of the running crane control device 62, accordingly
Ground is opened and closed；
The vehicle power supply 64 is coupled with the transformer 65, is suitable under the control of the running crane control device 62, is led to
The transformer 65 is crossed to power to the air bag 631.
In specific implementation, the running crane control device 62 is suitable for controlling the relay 66 and is closed, and control is described vehicle-mounted
Power supply 64, to 631 output current of the air bag, is made the air bag 631 expand, raises vehicle body by the transformer 65.
Below with reference to Fig. 6, the operation principle of safety protective system for vehicle is illustrated：
The speed and displacement information of the barrier of such as vehicle etc of 61 real-time detection current vehicle side of radar, in turn
Speed and displacement information are passed to running crane control device 62 by radar 61 by conducting wire, so that running crane control device 62 is divided
It analyses, running crane control device 62 is judged by the control strategy that the decision algorithm and triggering that collide operating mode are lifted, Jin Ergen
According to judgement as a result, to determine whether to control vehicle power supply 64 by transformer 65 to 631 output current of air bag.In detail, when
When running crane control device 62 is judged to occur side impact operating mode, vehicle power supply 64 can be controlled to 631 output current of air bag.Work as row
When side impact operating mode will not occur for the judgement of truck control device 62, vehicle power supply 64 can be controlled not to 631 output current of air bag.And
And it is connected by electric wire between vehicle power supply 64, transformer 65 and air bag 631.Air bag 631 can be put quick-fried and swollen after being powered
It is swollen, and then by squeezing crossbeam, lifted on vehicle body to realize.
To sum up, include air bag by increasing setting on corresponding vehicle body above the crossbeam of original vehicle suspension system
Raised part, and increase the judgement of side impact operating mode and trigger the control strategy of raised part, and combine radar real-time detection side
The relative movement parameters data of vehicle may be implemented that automobile body is lifted certain altitude function before side impact operating mode occurs, because
This can reduce the extent of damage in vehicle side impact operating mode, therefore can also reduce side impact operating mode to passenger in vehicle and drive user
Extent of injury.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is can
It is completed with instructing relevant hardware by program, which can be stored in computer readable storage medium, to store
Medium may include：ROM, RAM, disk or CD etc..
Although present disclosure is as above, present invention is not limited to this.Any those 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 (28)
1. a kind of vehicle safety method, which is characterized in that including：
Obtain the vehicle of the vehicular sideview and the relative lateral motion parameter of the vehicle；Wherein：The relative lateral motion
Parameter includes：Relatively transverse speed and relatively transverse distance；
According to the relative lateral motion parameter, judge whether that side impact operating mode can occur；
When side impact operating mode can occur for determination, vehicle body is raised.
2. vehicle safety method according to claim 1, which is characterized in that described according to the relative lateral motion
Parameter judges whether that side impact operating mode can occur, including：
When the relatively transverse speed is less than preset first relatively transverse threshold speed, side impact operating mode will not occur for determination；
When the relatively transverse speed is more than preset second relatively transverse threshold speed, side impact operating mode can occur for determination；Institute
It states the second relatively transverse threshold speed and is more than the described first relatively transverse threshold speed.
3. vehicle safety method according to claim 2, which is characterized in that described according to the relative lateral motion
Parameter judges whether that side impact operating mode can occur, further includes：
When the relatively transverse speed be more than the described first relatively transverse threshold speed, and be less than the described second relatively transverse speed
When threshold value, judge whether the relatively transverse distance is less than preset relatively transverse distance threshold；Wherein：It is described it is relatively transverse away from
From threshold value and the relative lateral motion velocity correlation；
When the relatively transverse distance is less than the relatively transverse distance threshold, side impact operating mode can occur for determination.
4. vehicle safety method according to claim 3, which is characterized in that the relatively transverse distance threshold and institute
It states relative lateral motion speed and meets following relationship, including：
vtFor relative lateral motion speed, SmaxFor relatively transverse distance threshold, β be the vehicle of vehicular sideview wheel and ground it
Between friction factor, g is acceleration of gravity.
5. vehicle safety method according to claim 1, which is characterized in that by control be set to vehicle body with it is described
Raised part between the suspension system of vehicle raises vehicle body.
6. vehicle safety method according to claim 5, which is characterized in that the raised part, including：Air bag,
The air bag is set to the body bottom opposite with the crossbeam central part of the suspension system.
7. vehicle safety method according to claim 6, which is characterized in that the raised part further includes being set to
The pallet of the beam surface is placed in below the air bag；And the accessible area of the pallet and the air bag is more than described
The accessible area of crossbeam and the air bag.
8. vehicle safety method according to claim 7, which is characterized in that it is cuboid after the air bag expansion,
And the contact surface of the air bag and the pallet is rectangle.
9. vehicle safety method according to claim 6, which is characterized in that gas vent is not arranged for the air bag.
10. vehicle safety method according to claim 6, which is characterized in that described to be set to vehicle body by control
Raised part between the suspension system of the vehicle raises vehicle body, including：
So that the air bag is expanded to the air bag output current, raises vehicle body.
11. vehicle safety method according to claim 1, which is characterized in that obtain the vehicle side by radar
The relative lateral motion parameter of the vehicle in face and the vehicle.
12. vehicle safety method according to claim 11, which is characterized in that be provided with 4 thunders on vehicle
It reaches, and 4 radars are respectively arranged at 4 door handles of the vehicle.
13. a kind of running crane control device, which is characterized in that including：
Acquiring unit is suitable for obtaining the relative lateral motion parameter of the vehicle and the vehicle of vehicular sideview；Wherein：It is described opposite
Transverse movement parameter includes：Relatively transverse speed and relatively transverse distance；
Judging unit is suitable for, according to the relative lateral motion parameter, judging whether that side impact operating mode can occur；
Vehicle body control unit, suitable for when side impact operating mode can occur for determination, raising vehicle body.
14. running crane control device according to claim 13, which is characterized in that the judging unit is suitable for working as the phase
When being less than preset first relatively transverse threshold speed to lateral velocity, side impact operating mode will not occur for determination；When described relatively horizontal
When being more than preset second relatively transverse threshold speed to speed, side impact operating mode can occur for determination；The second relatively transverse speed
It spends threshold value and is more than the described first relatively transverse threshold speed.
15. running crane control device according to claim 14, which is characterized in that the judging unit is suitable for working as the phase
When being more than the preset first relatively transverse threshold speed to lateral velocity, and being less than preset second relatively transverse threshold speed,
Judge whether the relatively transverse distance is less than preset relatively transverse distance threshold；Wherein：The relatively transverse distance threshold
With the relative lateral motion velocity correlation；When the relatively transverse distance is less than the relatively transverse distance threshold, determine
Side impact operating mode can occur.
16. running crane control device according to claim 15, which is characterized in that the relatively transverse distance threshold with it is described
Relative lateral motion speed meets following relationship, including：
vtFor relative lateral motion speed, SmaxFor relatively transverse distance threshold, β be the vehicle of vehicular sideview wheel and ground it
Between friction factor, g is acceleration of gravity.
17. running crane control device according to claim 13, which is characterized in that the vehicle body control unit, suitable for passing through
Control is set to the raised part between vehicle body and the suspension system of the vehicle to raise vehicle body.
18. running crane control device according to claim 17, which is characterized in that the raised part, including：Air bag, institute
It states air bag and is set to the body bottom opposite with the crossbeam central part of the suspension system.
19. running crane control device according to claim 18, which is characterized in that the vehicle body control unit is suitable for control
So that the air bag is expanded to the air bag output current, raises vehicle body.
20. running crane control device according to claim 13, which is characterized in that the acquiring unit, suitable for passing through radar
Obtain the vehicle of the vehicular sideview and the relative lateral motion parameter of the vehicle.
21. running crane control device according to claim 20, which is characterized in that 4 radars are provided on vehicle, and
4 radars are respectively arranged at 4 door handles of the vehicle.
22. a kind of safety protective system for vehicle, which is characterized in that including：Raised part, radar and claim 13~21 are any
Running crane control device described in, wherein：
The raised part is coupled with the running crane control device；
The running crane control device is coupled with the radar；
The radar is suitable for acquiring the relative lateral motion parameter of the vehicle and the vehicle of the vehicular sideview；
Wherein：The relative lateral motion parameter includes：Relatively transverse speed and relatively transverse distance.
23. safety protective system for vehicle according to claim 22, which is characterized in that the raised part, including：Gas
Capsule, the air bag are set to the body bottom opposite with the crossbeam central part of the suspension system of the vehicle.
24. safety protective system for vehicle according to claim 23, which is characterized in that the raised part further includes setting
In the pallet of the beam surface, it is placed in below the air bag；And the accessible area of the pallet and the air bag is more than institute
State the accessible area of crossbeam and the air bag.
25. safety protective system for vehicle according to claim 24, which is characterized in that be rectangular after the air bag expansion
Body, and the contact surface of the air bag and the pallet is rectangle.
26. safety protective system for vehicle according to claim 23, which is characterized in that gas vent is not arranged for the air bag.
27. safety protective system for vehicle according to claim 23, which is characterized in that further include：Transformer, relay and
Vehicle power supply, wherein：
The transformer is coupled with the vehicle power supply and the relay respectively, the electric current for being suitable for inputting vehicle power supply
Electrical parameter is adjusted, and input current is to the air bag；
The relay is coupled with the transformer, is suitable under the control of the running crane control device, is correspondingly opened and closed；
The vehicle power supply is coupled with the transformer, is suitable under the control of the running crane control device, is passed through the transformation
Device is powered to the air bag.
28. safety protective system for vehicle according to claim 27, which is characterized in that the running crane control device is suitable for
It controls the relay to be closed, controls the vehicle power supply by the transformer to the air bag output current, make the gas
Capsule expands, and raises vehicle body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710215986.8A CN108657102A (en) | 2017-04-01 | 2017-04-01 | A kind of vehicle safety method, system and running crane control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710215986.8A CN108657102A (en) | 2017-04-01 | 2017-04-01 | A kind of vehicle safety method, system and running crane control device |
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| Publication Number | Publication Date |
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| CN108657102A true CN108657102A (en) | 2018-10-16 |
Family
ID=63784500
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| CN201710215986.8A Pending CN108657102A (en) | 2017-04-01 | 2017-04-01 | A kind of vehicle safety method, system and running crane control device |
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| CN114715064A (en) * | 2022-02-24 | 2022-07-08 | 洛阳师范学院 | New energy automobile based on artificial intelligence thing networking |
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Application publication date: 20181016 |