CN108162909A - The efficient anti-rollover system of pure electric automobile - Google Patents
The efficient anti-rollover system of pure electric automobile Download PDFInfo
- Publication number
- CN108162909A CN108162909A CN201711435766.2A CN201711435766A CN108162909A CN 108162909 A CN108162909 A CN 108162909A CN 201711435766 A CN201711435766 A CN 201711435766A CN 108162909 A CN108162909 A CN 108162909A
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- China
- Prior art keywords
- vehicle body
- electric automobile
- pure electric
- luggage compartment
- hatch door
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- 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
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/13—Roll-over protection
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The present invention relates to pure electric automobile security fence technical fields, particularly a kind of system of anti-pure electric automobile rollover, it is the angle of inclination that vehicle body is perceived by being arranged on the obliquity sensor of body gravity position, instruction unpack luggage compartment door sent out to the hatch door ejecting mechanism being arranged between luggage compartment door and vehicle body by controller when car body obliqueness is more than the critical angle of setting in pure electric automobile driving process, the luggage compartment door to contact to earth prior to vehicle body, pass through vehicle body waist rail lower pillar stand, the hatch door column being hinged with vehicle body waist rail lower pillar stand, the triangular structure of collapsible pull rod composition that both ends are hinged in respectively on vehicle body waist rail lower pillar stand and hatch door column absorbs a part of Impact energy in advance, to buffer and reduce the deformation of contacting to earth of body structure, protect the effect of occupant's living space.The present invention can preferably utilize vehicle body existing structure, and promoting pure electric automobile anti-side by active mode turns over performance.
Description
Technical field
The present invention relates to the efficient anti-rollover systems of pure electric automobile security fence technical field, particularly pure electric automobile
System.
Background technology
With the development of society, people are higher and higher to the attention rate of vehicle safety, and pure electric automobile is as modern
The major public transportation tool of society, safety are more exposed to the attention of people.In all traffic accidents, pure electric automobile
Rollover often leads to heavy casualties, belongs to major traffic accidents, therefore, improves the anti-side rollover resistant capability of pure electric automobile, it is ensured that rollover thing
Therefore middle passenger survival has become a very important subject safely.At present, Economic Commission for Europe (Economic
Commission for Europe, ECE) it has formulated pure electric automobile rollover regulation (ECE R66) and has enforced.And China
With reference to ECE R66 regulations, formulate《The regulation of pure electric automobile superstructure intensity》Country's mark of (GB/T 17578-1998)
Standard, to improve the pure electric automobile technical merit in China.For corresponding laws and regulations requirement, generally collect by the way of both at home and abroad
In when to rollover the intensity of cap structure, rigidity and ensure occupant's living space body structure reinforcement and improvement grind
Study carefully, by increasing body frame sectional dimension, increasing section thickness, reinforcing rib is pasted in gusset inside and outside or adjust local connector
The modes such as type of attachment are realized.Said program not only increases body structure dead weight, and it is safe to turn on one's side for pure electric automobile
Property does not also increase significantly, this allows for use intensity when body structure intensity is far longer than normally travel, is unfavorable for saving
It can emission reduction and the design of body lightening.Since the structure type of traditional pure electric automobile is limited, cannot increase outside gusset
Endergonic structure.
Invention content
During solving pure electric automobile rollover, pure electric automobile gusset can not design the spy of effective endergonic structure
Point, the present invention are a kind of raising pure electric automobile rollover safety proposed on the basis of existing Europe ECE R66 laws and regulations requirements
The designing scheme of property, is dedicated on the basis of former body structure is not changed, pure to improve by increasing movable energy absorber
Electric vehicle turns on one's side safety to realize that body lightening designs.
It is (see the attached drawing 7) that can be opened in view of pure electric automobile luggage compartment door, and vehicle body left and right side respectively has number
The hatch door not waited, therefore passed through actively using this period of pure electric automobile from rollover critical localisation to vehicle body and collision on the ground
These hatch doors are popped up, to improve pure electric automobile rollover safety, realize the protection to occupant.
Pure electric automobile rollover safety protecting method of the present invention, is actively to flick luggage when pure electric automobile is turned on one's side
Hatch door mechanism, makes it collide prior to vehicle body and ground, absorbs one in advance by the collision deformation of luggage compartment door own institutions
Part Impact energy reduces body structure deformation to realize, protects the effect of occupant's living space；Its specific implementation is such as
Under：Signal from parking brake contact switch is received by controller, when vehicle is in transport condition, controller output control
Signal processed is at closed state to the 2/2-way solenoid valve of ejecting mechanism, to ensure the sealing performance of device for ejecting.Again
The angle of inclination of vehicle body is perceived by the obliquity sensor of body gravity position, passes through control when more than the critical angle of setting
Device output control signal sends out instruction unpack luggage compartment door to the hatch door ejecting mechanism being arranged between luggage compartment door and vehicle body, prior to
The luggage compartment door that vehicle body contacts to earth is distinguished by vehicle body waist rail lower pillar stand, the hatch door column being hinged with vehicle body waist rail lower pillar stand, both ends
The triangular structure of collapsible pull rod composition being hinged on vehicle body waist rail lower pillar stand and hatch door column can buffer and reduce vehicle
The deformation of contacting to earth of body structure.
To realize a kind of pure electric automobile rollover safety device of the above method, by being arranged on pure electric automobile both sides
Make the fast-breaking ejecting mechanism of hatch door, the contact switch being arranged at parking brake, setting on the luggage compartment door of bottom
Obliquity sensor and controller in body gravity position are formed；The ejecting mechanism is hinged at luggage compartment floor including bottom end
Cylinder and rod end on crossbeam are hinged on hatch door column the electromagnetic valve component outside piston and cylinder and it is arranged on cylinder
The gas generator of intracavity bottom；The controller is connect by control unit, two Data Input Interfaces and two data outputs
Mouth forms, and the contact switch at the parking brake is connected by data line with a signal input port of controller,
The obliquity sensor is connected by data line with another signal input port of controller, the gas on vehicle body left side and right side
The gas generator of cylinder intracavity bottom is connected respectively by ignition fuse with a signal output port of controller, the electricity
Electromagnetic valve component is connected in series by the solenoid valve and two check valves in parallel of 2/2-way, and 2/2-way solenoid valve passes through number
It is connected according to line with another signal output port of controller.
Pure electric automobile rollover safety device of the present invention, is received by controller from parking brake contact switch
Signal, when vehicle is in transport condition, controller export control signal make at its to the 2/2-way solenoid valve of ejecting mechanism
In closed state, to ensure the sealing performance of device for ejecting.Sensed when pure electric automobile is turned on one's side by obliquity sensor and rolled
Angle, and by data signal transmission to controller, (the pure electric vehicle at this time after side tilt angle is more than pure electric automobile rollover critical angle
Automobile is centainly turned on one's side), it is sent out instruction makes ignition fuse and lighted a fire by controller, the gas generator for rollover side of igniting,
It is made to generate gas rapidly, and pushes piston motion, piston pushes the movement of hatch door column so that hatch door is with hatch door column and vehicle body
Hinge joint between waist rail lower pillar stand is outwardly opened for axis, and due to the movement of hatch door column, and Foldable formula pull rod is opened up rapidly
It opens, an obtuse angle (between 120~150) is expanded between final hatch door column and waist rail lower pillar stand, collapsible pull rod expands into
Straight line.At this point, stable triangular structure is made of hatch door column, waist rail lower pillar stand, collapsible pull rod, and prior to vehicle body
It collides with ground, big energy is absorbed by self structure deformation, reduces vehicle body collision energy, realize that protection existence is empty
Between.
The present invention can preferably utilize vehicle body existing structure, and promoting pure electric automobile anti-side by active mode turns over performance.
Using the existing cabin door structure in pure electric automobile side, and design is optimized to it, makes it that side occur in pure electric automobile
Hatch door mechanism is actively popped up when turning over, and is collided prior to vehicle body and ground, is absorbed by self structure deformation for body structure
Energy plays the role of reducing body structure deformation, protects occupant's living space, and (the parking shape in hatch door normal use
State), still hatch door can be made freely to open and close.
Description of the drawings
Fig. 1 is pure electric automobile structure of trunk lid front view of the present invention；
Fig. 2 is the side view of Fig. 1；
Fig. 3 is pure electric automobile rollover safety shield apparatus schematic diagram of the present invention；
Fig. 4 is the control flow chart of the present invention；
Fig. 5 is the ejecting mechanism schematic diagram shown in Fig. 3；
Fig. 6 is apparatus of the present invention expansion process schematic when pure electric automobile is turned on one's side；
Fig. 7 is general pure electric automobile luggage compartment door distribution schematic diagram；
Fig. 8 is equipped with the pure electric automobile rollover process schematic of the present apparatus；
Fig. 9 is not using the simulation result schematic diagram after present apparatus collision；
Figure 10 is the simulation result schematic diagram for employing present apparatus collision；
Specific embodiment
The present invention is described in further detail below in conjunction with the embodiment that attached drawing provides.
As shown in Figure 1, 2, in figure：1 it is vehicle body waist rail lower pillar stand, 2 be hatch door column, 3 be collapsible pull rod, 4 is hatch door
Crossbeam, 5 are hinge；Pure electric automobile rollover safety protecting method of the present invention, is the active bullet when pure electric automobile is turned on one's side
Luggage compartment door mechanism is opened, it is made to collide prior to vehicle body and ground, vehicle is replaced by the collision deformation of luggage compartment door own institutions
Body structure absorbs Impact energy, reduces body structure deformation to realize, protects the effect of occupant's living space：Its specific implementation side
Formula is as follows：The signal of the contact switch of parking brake is received by controller 7, when the vehicle is running, controller closing is located at
Pop up the 2/2-way solenoid valve 17 outside cylinder, it is ensured that the leakproofness of cylinder.It is pure by being arranged on when pure electric automobile is turned on one's side
The obliquity sensor 6 of electric vehicle position of centre of gravity perceives the angle of inclination of vehicle body, passes through control when more than the critical angle of setting
Device 7 processed sends out instruction unpack luggage compartment door to the hatch door ejecting mechanism being arranged between luggage compartment door and vehicle body, contacts to earth prior to vehicle body
Luggage compartment door, by vehicle body waist rail lower pillar stand 1, the hatch door column 2 being hinged with vehicle body waist rail lower pillar stand, both ends are hinged in respectively
The triangular structure that collapsible pull rod 3 on vehicle body waist rail lower pillar stand and hatch door column forms can buffer and reduce body structure
Deformation of contacting to earth.
In order to solve the contradiction between pure electric automobile rollover safety and light-weight design, can preferably be showed using vehicle body
There is structure, promoting pure electric automobile anti-side by active mode turns over performance.The present invention utilizes the existing cabin in pure electric automobile side
Door, and it is optimized design makes it actively pop up hatch door mechanism when pure electric automobile is turned on one's side, and prior to
Vehicle body collides with ground, absorbs energy for body structure by self structure deformation, plays and reduce body structure deformation, protect
Protect the effect of occupant's living space.
With reference to Fig. 3 to 5, in figure, 6 be obliquity sensor, 7 in order to control device, 8 be data line, 9 be ejecting mechanism assembly, 10
It is inflator assembly for gas generator ignition fuse, 11,12 be cylinder, 13 be piston, 14 be hinge seat A, 15 is hinge
Chain seat B, 16 in order to control device DOL Data Output Line, 17 be 2/2-way solenoid valve, 18 be air pressure check valve A, 19 be air pressure check valve
B；
A kind of pure electric automobile rollover safety device for realizing the above method, by being arranged on pure electric automobile both sides bottom
Make the fast-breaking ejecting mechanism of hatch door on portion's luggage compartment door, the contact switch being arranged at parking brake, be arranged on
The obliquity sensor 6 and controller 7 of body gravity position are formed；The ejecting mechanism is hinged at luggage compartment floor including bottom end
It cylinder 12 and rod end on crossbeam are hinged on hatch door column 2 the electromagnetic valve component outside piston 13 and cylinder and is arranged on
The gas generator 11 of cylinder inner cavity bottom.The controller 7 is by control unit, two Data Input Interfaces and two data
Output interface forms, and the contact switch at the parking brake passes through data line 8 and a signal input part of controller
Mouth is connected, and the obliquity sensor 6 is connected by data line 8 with another signal input port of controller, on the left of vehicle body
Pass through ignition fuse 10 and a signal output end of controller respectively with the gas generator 11 of the cylinder inner cavity bottom on right side
Mouth is connected, and electromagnetic valve component is connected in series by the check valve 18,19 in parallel of the solenoid valve 17 of a 2/2-way and two, described
2/2-way solenoid valve 17 be connected by data line 16 with another signal output port of controller.
Hatch door drag link mechanism can be designed as a variety of expanded forms：Multistage is collapsible, contraction type, sleeve are drawing etc..Tool
Body form carries out installation matching according to specific vehicle body structure form and rollover demand for security.
Hatch door drag link mechanism may be designed as stretching power-absorbing.During rollover, after hatch door is ejected, hatch door is by curved
Trend, and hatch door pull rod is tension trend, therefore hatch door pull rod is designed as stretching power-absorbing contributes to more absorption energy, reduces
The collision energy of body shell improves pure electric automobile rollover safety.
The present invention by controller 7 sense at parking hand-operated brake set contact switch input signal, when in
When vehicle brake is non-working condition (pure electric automobile is transport condition), controller 7 exports control signal to ejecting mechanism
2/2-way solenoid valve 17 be at closed state, to ensure the sealing performance of device for ejecting cylinder.Work as parking brake
During for use state (being pure electric automobile parked state), controller 7 makes 2/2-way electric by 8 output signal of data lead
Magnet valve 17 is in opening, and when needing to open hatch door, i.e., piston moves out, at this time unidirectional air pressure valve A18 lockings, air
Entered in cylinder by unidirectional air pressure valve B19；Likewise, when closing hatch door, i.e., piston to cylinder interior move when, two two
Three-way electromagnetic valve 17 is still in opening, unidirectional air pressure valve B19 lockings, and the air in cylinder is flowed to by unidirectional air pressure valve A18
It is extraneous.
Side tilt angle is sensed by obliquity sensor 6 when pure electric automobile is turned on one's side, and by data signal transmission to control
Device 7, after side tilt angle is more than pure electric automobile rollover critical angle (pure electric automobile is centainly turned on one's side at this time), by controller
7 judge rollover directions, and send out instruction make 11 points of rollover side gas generator fight it is rapid generate gas, piston 13 is pushed to transport
Dynamic, piston 13 pushes the movement of hatch door column so that hinge joint of the hatch door using between hatch door column 2 and vehicle body waist rail lower pillar stand 1 as
Axis outwardly opens, and due to the movement of hatch door column 2, and Foldable formula pull rod 3 is unfolded rapidly, under final hatch door column and waist rail
An obtuse angle (between 120~150) is expanded between column, collapsible pull rod expands into straight line, and process such as attached drawing 6 is unfolded
It is shown.At this point, stable triangular structure is formed, and prior to vehicle body by hatch door column 2, waist rail lower pillar stand 1, collapsible pull rod 3
It collides with ground, big energy is absorbed by self structure deformation, reduces vehicle body collision energy, protects living space.
Pure electric automobile rollover process equipped with the present apparatus is as shown in Figure 8.In order to verify effectiveness of the invention, this hair
A person of good sense establishes standard vehicle figure finite element model by taking certain pure electric automobile as an example, and side is carried out according to the requirement of ECE R66 regulations
Turn over simulation analysis.It establishes the body section finite element model equipped with Pop-up hatch door protection mechanism simultaneously and the vehicle of the present invention is not installed
Figure finite element model.Simulation analysis is carried out, and pure electric vehicle vapour is promoted to the present invention according to analysis result using LS-Dyna softwares
The ability of vehicle rollover safety is evaluated, as a result as shown in attached drawing 9,10.Attached drawing 9 is does not use the imitative of present apparatus direct collision
True result (the trapezoidal living space for laws and regulations requirement wherein in body structure), window pillar has invaded living space, fails
By regulation, attached drawing 10 is to employ the collision simulation after the present apparatus as a result, window pillar still has a certain distance from living space,
Regulation can be passed through.By Comparative result it is apparent that the present invention can effectively improve pure electric automobile rollover safety
Property.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Any modification, equivalent replacement and improvement made within principle etc. should all be fallen within the scope and spirit of the invention.
Claims (2)
1. the efficient anti-rollover system of pure electric automobile, it is characterised in that：It is actively to flick luggage compartment door when car is turned on one's side
Mechanism makes it collide prior to vehicle body and ground, absorbs a part in advance by the collision deformation of luggage compartment door own institutions
Impact energy reduces body structure deformation to realize, protects the effect of occupant's living space；Its specific implementation is as follows：By
The obliquity sensor for being arranged on body gravity position perceives the angle of inclination of vehicle body, and car body obliqueness is more than during bus driving
Instruction unpack is sent out to the hatch door ejecting mechanism being arranged between luggage compartment door and vehicle body by controller during the critical angle of setting
Luggage compartment door prior to the luggage compartment door that vehicle body contacts to earth, passes through vehicle body waist rail lower pillar stand, the hatch door being hinged with vehicle body waist rail lower pillar stand
Column, both ends are hinged in the triangular structure of the collapsible pull rod composition on vehicle body waist rail lower pillar stand and hatch door column respectively
Buffering and the deformation of contacting to earth for reducing body structure.
2. according to the efficient anti-rollover system of pure electric automobile described in claims 1, it is characterised in that：By being arranged on car two
On side bottom luggage compartment door make the fast-breaking ejecting mechanism of hatch door (9), the contact switch being arranged at parking brake,
The obliquity sensor (6) and controller (7) for being arranged on body gravity position are formed；The ejecting mechanism is hinged at including bottom end
Cylinder (12) and rod end on luggage compartment floor crossbeam are hinged at the electricity outside piston (13) and cylinder on hatch door column (2)
Electromagnetic valve component and the gas generator (II) for being arranged on cylinder inner cavity bottom；The controller (7) is by control unit, two numbers
According to input interface and two data output interface compositions, the contact switch at the parking brake passes through data line and control
One signal input port of device is connected, and the obliquity sensor (6) is defeated by another of data line and controller signal
Inbound port is connected, the gas generator (11) of the cylinder inner cavity bottom on the left of vehicle body and right side respectively by ignition fuse (10) and
One signal output port of controller is connected, and the electromagnetic valve component is by the solenoid valve (17) of a 2/2-way and two
Check valve (18,19) in parallel is connected in series, and the 2/2-way solenoid valve (17) is another by data line and controller
A signal output port is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711435766.2A CN108162909A (en) | 2017-12-26 | 2017-12-26 | The efficient anti-rollover system of pure electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711435766.2A CN108162909A (en) | 2017-12-26 | 2017-12-26 | The efficient anti-rollover system of pure electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108162909A true CN108162909A (en) | 2018-06-15 |
Family
ID=62521588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711435766.2A Pending CN108162909A (en) | 2017-12-26 | 2017-12-26 | The efficient anti-rollover system of pure electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108162909A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113715784A (en) * | 2021-11-01 | 2021-11-30 | 杭州巍枫减速机械有限公司 | Device for preventing pure electric vehicle from turning on side |
-
2017
- 2017-12-26 CN CN201711435766.2A patent/CN108162909A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113715784A (en) * | 2021-11-01 | 2021-11-30 | 杭州巍枫减速机械有限公司 | Device for preventing pure electric vehicle from turning on side |
| CN113715784B (en) * | 2021-11-01 | 2022-04-29 | 杭州巍枫减速机械有限公司 | Device for preventing pure electric vehicle from turning on side |
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Legal Events
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180615 |