CN105675309B - The power battery crash tests device and test method of pure electric automobile - Google Patents
The power battery crash tests device and test method of pure electric automobile Download PDFInfo
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- CN105675309B CN105675309B CN201610177037.0A CN201610177037A CN105675309B CN 105675309 B CN105675309 B CN 105675309B CN 201610177037 A CN201610177037 A CN 201610177037A CN 105675309 B CN105675309 B CN 105675309B
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- power battery
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- guide rail
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/0078—Shock-testing of vehicles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/08—Shock-testing
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- General Physics & Mathematics (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses the power battery crash tests device and test method of a kind of pure electric automobile, the power battery crash tests device includes: test vehicle, the power battery that there is test vehicle bottom to set；Guide rail, test vehicle are arranged on guide rail and are moveable to default position of collision；Element is collided, the setting of collision element collides in default position of collision collision element with power battery at default position of collision；Acceleration-controlled system, acceleration-controlled system are used for control test vehicle in the case where unmanned and move to default position of collision；And braking control system, braking control system are used for the control test vehicle braking after collision occurs.The power battery crash tests device of the pure electric automobile, can effectively in the case of simulating vehicle backing power battery collision status, electric safety verification and detection convenient for pure electric automobile.
Description
Technical field
The present invention relates to pure electric automobile technical fields, touch in particular to a kind of power battery of pure electric automobile
Hit test device and test method.
Background technique
Currently, the verifying detection to pure electric automobile crashworthiness is substantially consistent with conventional fuel oil automobile, usually only
Carry out the impact test of front part of vehicle and lateral location.But for pure electric automobile, due to its mass center arrangement and sky
Between be laid out etc. with conventional fuel oil vehicle difference, therefore, existing crash tests device is not able to satisfy pure electric vehicle
Testing requirement.For this purpose, being badly in need of carrying out crash tests specifically for pure electric automobile.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.For this purpose, the present invention mentions
Out it is a kind of can effectively in the case of simulating vehicle backing the pure electric vehicle of the collision status of power battery power battery collision
Test device.
The application is to be made based on inventor to the discovery of following facts and problem and understanding: power battery is usually arranged
In bottom, backing phenomenon occurs for pure electric automobile during actual travel, and travel safety is poor.
The invention also provides a kind of test methods using above-mentioned test device.
The power battery crash tests device of the pure electric automobile of embodiment according to a first aspect of the present invention, comprising: test
Vehicle, the power battery that there is test vehicle bottom to set；Guide rail, test vehicle are arranged on guide rail and are moveable to pre-
If position of collision；Element is collided, the setting of collision element collides element and power at default position of collision, in default position of collision
Battery collides；Acceleration-controlled system, acceleration-controlled system are used for control test vehicle movement in the case where unmanned
To default position of collision；And braking control system, braking control system are used for the control test vehicle braking after collision occurs.
The power battery crash tests device of the pure electric automobile of embodiment according to a first aspect of the present invention, being capable of effective mould
The collision status of power battery in the case of quasi- vehicle backing, electric safety verification and detection convenient for pure electric automobile.
Optionally, the acceleration-controlled system includes: external equipment, the control of the external equipment and the test vehicle
Device electrical connection, with when the external equipment sends acceleration signals to the controller, control the driving motor work so that
The test vehicle moves to default position of collision.
Optionally, the test vehicle has OBD interface, the OBD interface phase of the external equipment and the test vehicle
Controller described in Lian Yixiang sends acceleration signals and acquires the operational data of the controller.
Optionally, the braking control system includes: auxiliary power module, and the auxiliary power module is used in the survey
The controller of test run is electrically connected when being electrically connected disconnection with the controller with power battery；And braking executive component, institute
Braking executive component is stated in the braking for driving the test vehicle when being electrically connected and disconnecting of the power battery and the controller
Pedal travel is to application position.
Optionally, the collision element has the cutting knife that cutting test is carried out for the lower part to the power battery
Tool.
Optionally, the cutting cutter is the 1/3-1/ of the power battery height to the cutting depth of the power battery
2。
Optionally, the extending direction of the cutting cutter and extension of the guide rail at the default position of collision
Direction is consistent.
Optionally, the collision element further includes mounting bracket, and the cutting cutter is connected in the mounting bracket, and
Position-adjustable of the cutting cutter in the mounting bracket.
Optionally, the collision element has the ram for carrying out passivity impact test to the power battery
Optionally, the guide rail includes the first guide rail and the second guide rail disposed in parallel, the vehicle of the test vehicle
Wheel is rigid wheel, and wherein the wheel of side is adapted with first guide rail, the wheel of the other side and the second guide rail phase
Adaptation.
Optionally, first guide rail and second guide rail pass through the multiple lateral connections being vertically connected between the two
Beam connection.
Optionally, first guide rail and second guide rail be along linear extension, and the collision element setting is described the
Between one guide rail and second guide rail.
Optionally, the outer peripheral surface of the wheel is equipped with the annular groove cooperated with respective track.
The test method using above-mentioned test device of embodiment according to a second aspect of the present invention, comprising: S100: accelerate control
System processed issues acceleration signals to the controller of test vehicle, and the test vehicle moves to default position of collision and power battery
It collides with collision element；S200: judge whether the power battery disconnects with being electrically connected for the controller；S300: such as
Fruit is that then the auxiliary power module of braking control system is electrically connected with the controller, and the braking of the braking control system is held
The brake pedal braking of units driving test vehicle is to issue brake signal to the controller.
As a result, the characteristics of the power battery crash tests device combination pure electric automobile itself, external lead has been dispensed
Draw motor and relevant device, the acceleration of the test vehicle under unmanned state realized in such a way that external equipment is remotely controlled,
And brake, test side are realized by auxiliary power module and braking executive component in the case where power battery failure
Method can sufficiently meet simplation verification demand when backing collision occurs for power battery of pure electric automobile backpack body, safety with higher
Property and reliability.
Detailed description of the invention
Fig. 1 is the schematic diagram of the power battery crash tests device of pure electric automobile according to an embodiment of the present invention.
Appended drawing reference:
Power battery crash tests device 100, test vehicle 10, wheel 11, guide rail 20, the first guide rail 21, second
Guide rail 22, lateral connection beam 23 collide element 30, cutting cutter 31, mounting bracket 32, gasket 40.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings.Below with reference to
The embodiment of attached drawing description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
The power battery collision of the pure electric automobile of embodiment according to a first aspect of the present invention is described in detail referring to Fig. 1
Test device 100.
As shown in Figure 1, the power battery crash tests device of the pure electric automobile of embodiment according to a first aspect of the present invention
100 include: test vehicle 10, guide rail 20, collision element 30, acceleration-controlled system and braking control system.
The power battery that there is test vehicle 10 bottom to set, test vehicle 10 are arranged on guide rail 20 and are moveable to pre-
If position of collision, the setting of collision element 30 collides element 30 and power battery at default position of collision, in default position of collision
It collides.Wherein, acceleration-controlled system is used for the control test vehicle 10 in the case where unmanned and moves to default collision
Position, braking control system are used for the control test vehicle 10 after collision occurs and brake.
The power battery crash tests device 100 of pure electric automobile according to an embodiment of the present invention, by accelerating control system
System make to test vehicle 10 accelerate on guide rail 20 and the power battery that moves to default position of collision, and then set bottom with touch
It hits element 30 to collide, and controls vehicle braking after collision occurs, in this way, not only being moved in the case of effective simulating vehicle backing
The collision status of power battery, electric safety verification and detection convenient for pure electric automobile, and significantly improve the safety of test
And reliability.
In some embodiments, acceleration-controlled system includes external equipment, the controller of external equipment and test vehicle 10
Electrical connection, with when external equipment sends acceleration signals to controller, controller controls driving motor and works so that test vehicle
10 move to default position of collision.Driving motor work is controlled to realize under unmanned state by external equipment as a result,
Vehicle accelerates, and issues acceleration signals instead of human body pushes pedals, realizes that the remote control of vehicle accelerates, has higher safety.
Further, test vehicle 10 have OBD interface, external equipment with test vehicle 10 OBD interface be connected with to
The operational data of controller transmission acceleration signals and acquisition controller.As a result, by vehicle OBD (onboard diagnostic system) interface with
External equipment (such as computer terminal) connection, by the corresponding strategies debugging software on control external equipment with by motor acceleration signals
It is wirelessly transmitted to vehicle control device.In this way, can not only realize that the remote control to vehicle accelerates, and a large amount of vehicle can be acquired
Operational data makes test analysis more comprehensively, accurately convenient for the electric security feature of automobile under analysis backing state.
Other embodiments according to the present invention, braking control system include that auxiliary power module and braking execute member
Part.When being electrically connected disconnection of controller and the power battery of vehicle 10 is being tested, auxiliary power module is electrically connected with the controller, system
The brake pedal of dynamic executive component driving test vehicle 10 moves to application position.
Pedal brake is realized using additional auxiliary power module and braking executive component as a result, avoids collision
Brake fade caused by explosion, the destruction that combustion case generates full-vehicle control circuit occurs afterwards, significantly improves test
Safety and reliability.In addition, complete equipment cost is lower, development cost has been saved.
Specifically, braking executive component includes that lower pressing spring above brake pedal is arranged in, is arranged under brake pedal
Side above pushes away spring and electromagnet, and in non-braking state, electromagnet is not charged, and brake pedal is pushed away in lower pressing spring and above
It is in released position under the action of spring, when being electrically connected disconnection, assists electricity with power battery in the brake for testing vehicle 10
Source module is electrically connected with the controller, and so that electromagnet is obtained electric and be attracted with body platform, is driven pedal to move downwardly to and is stepped on position
It sets, it is thus achieved that the braking of collision rear vehicle.
It will be understood by those skilled in the art that the present invention is not limited thereto, the acceleration-controlled system of crash tests device and
Braking control system can also be realized in the form of external impetus, such as drawn by motor group by hawser or led to by other vehicles
Trailer pole traction is crossed to realize acceleration, the braking of test vehicle 10.
Backing situation according to actual vehicle collision is different, and different types of collision element 30 can be used to realize various touch
Hit simulation.For example, collision element 30 has the shock for carrying out passivity impact test to power battery in some embodiments
The influence that part collides battery thus, it is possible to test passivity barrier；
In further embodiments, collision element 30 has the cutting that cutting test is carried out for the lower part to power battery
Cutter 31.Cutting test is carried out to battery using sharp cutting cutter 31 in this way.Optionally, the extension side of cutting cutter 31
To consistent with extending direction of the guide rail 20 at default position of collision.The maximization of cutting length is achieved, just
In the electric security performance for testing power battery in extreme situation.
Further, cutting cutter 31 is the 1/3-1/2 of power battery height to the cutting depth of power battery.Specifically
Ground, the 1/3-1/2 of the upward cutting in bottom of 31 ultromotivity battery of cutting cutter to power battery height.
Optionally, collision element 30 further includes mounting bracket 32, and cutting cutter 31 is connected in mounting bracket 32, and cutting
Position-adjustable of the cutter 31 in mounting bracket 32.Can be set as needed as a result, cutting cutter 31 cutting depth and
Cutting angle, the collision status for simulating test device are more various.
According to some embodiments of the present invention, as shown in Figure 1, guide rail 20 includes 21 He of the first guide rail disposed in parallel
The wheel 11 of second guide rail 22, test vehicle 10 is rigid wheel 11, and wherein the wheel 11 of side is adapted with the first guide rail 21,
The wheel 11 of the other side is adapted with the second guide rail 22.Optionally, the outer peripheral surface of wheel 11 is equipped with and cooperates with respective track
Annular groove.
In this way, testing the vehicle of 10 side of vehicle after acceleration-controlled system issues acceleration signals to the controller of test measurement
Wheel 11 is rolled along the first guide rail 21, and the wheel 11 of the other side is rolled along the second guide rail 22, enables to test vehicle 10 as a result, default
It is travelled on track, and keeps straight-line travelling afterwards before the collision, ensure that test site and testing crew safety.
In specific embodiment shown in Fig. 1, the first guide rail 21 and the second guide rail 22 are by being vertically connected between the two
Multiple lateral connection beams 23 connection.The connection of the first guide rail 21 and the second guide rail 22 is closer as a result, guide rail 20 it is whole
Body structural strength is more preferable.
Specifically, the spacing between the first guide rail 21 and the second guide rail 22 is consistent with the wheel spacing of two sides wheel 11, more
The distance between parallel to each other and two neighboring lateral connection beam 23 is fixed value, guide rail 20 between a lateral connection beam 23
Entirety can be fixed on sufficiently long straight line cement pavement by expansion bolt, and the height of guide rail 20 can be adjusted by gasket 40
It is flat.
In some embodiments, the first guide rail 21 and the second guide rail 22 collide element 30 and are arranged first along linear extension
Between guide rail 21 and the second guide rail 22.Test vehicle 10 can guarantee test vehicle on guide rail 20 along linear accelerating as a result,
The stability of 10 movements.
The test of the power battery crash tests device using above-described embodiment of embodiment according to a second aspect of the present invention
Method, comprising:
S100: acceleration-controlled system issues acceleration signals to the controller of test vehicle, and test vehicle moves to default touch
It hits position and power battery collides with collision element.
S200: judge whether power battery disconnects with being electrically connected for controller.
S300: if it is, the auxiliary power module of braking control system is electrically connected with the controller, braking control system
The brake pedal braking of executive component driving test vehicle is braked to issue brake signal to controller.
As a result, the characteristics of the power battery crash tests device combination pure electric automobile itself, external lead has been dispensed
Draw motor and relevant device, the acceleration of the test vehicle under unmanned state realized in such a way that external equipment is remotely controlled,
And brake, test side are realized by auxiliary power module and braking executive component in the case where power battery failure
Method can sufficiently meet simplation verification demand when backing collision occurs for power battery of pure electric automobile backpack body, safety with higher
Property and reliability.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected or can communicate each other；It can be directly connected, can also indirectly connected through an intermediary, it can be with
It is the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly.For this field
For those of ordinary skill, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (10)
1. a kind of power battery crash tests device of pure electric automobile characterized by comprising
Test vehicle, the power battery that there is the test vehicle bottom to set；
Guide rail, the test vehicle are arranged on the guide rail and are moveable to default position of collision；
Element is collided, the collision element is arranged at the default position of collision, collides described in the default position of collision
Element collides with the power battery, and the collision element is suitable for the lower part cutting to the power battery with simulating vehicle
The collision status of power battery in the case of backing；
Acceleration-controlled system, the acceleration-controlled system be used in the case where unmanned control test vehicle move to it is default
Position of collision；And
Braking control system, the braking control system are used to control the test vehicle braking after collision occurs；
The collision element has the cutting cutter that cutting test is carried out for the lower part to the power battery, the cutting knife
Having to the cutting depth of the power battery is the 1/3-1/2 of the power battery height, and the collision element further includes installation
Bracket, the cutting cutter are connected in the mounting bracket, and the extending direction of the cutting cutter and the guide rail
Extending direction at the default position of collision is consistent, slicing angle of the cutting cutter in the mounting bracket with
And planing depth is adjustable.
2. the power battery crash tests device of pure electric automobile according to claim 1, which is characterized in that the acceleration
Control system includes:
External equipment, the external equipment are electrically connected with the controller of the test vehicle, in the external equipment to described
When controller sends acceleration signals, control driving motor work is so that the test vehicle moves to default position of collision.
3. the power battery crash tests device of pure electric automobile according to claim 2, which is characterized in that the test
Vehicle has OBD interface, and the external equipment is connected with the OBD interface of the test vehicle to send and accelerate to the controller
Signal and the operational data for acquiring the controller.
4. the power battery crash tests device of pure electric automobile according to claim 1, which is characterized in that the braking
Control system includes:
Auxiliary power module, the auxiliary power module are used in the test controller of vehicle and being electrically connected for power battery
It is electrically connected when disconnection with the controller；And
Executive component is braked, the braking executive component drives when being electrically connected and disconnecting the power battery and the controller
The brake pedal of the test vehicle moves to application position.
5. the power battery crash tests device of pure electric automobile according to claim 1, which is characterized in that the collision
Element has the ram for carrying out passivity impact test to the power battery.
6. the power battery crash tests device of pure electric automobile according to claim 1, which is characterized in that the guiding
Track includes the first guide rail and the second guide rail disposed in parallel, and the wheel of the test vehicle is rigid wheel, wherein side
Wheel is adapted with first guide rail, and the wheel of the other side is adapted with second guide rail.
7. the power battery crash tests device of pure electric automobile according to claim 6, which is characterized in that described first
Guide rail passes through the multiple lateral connection beams being vertically connected between the two with second guide rail and connects.
8. the power battery crash tests device of pure electric automobile according to claim 6, which is characterized in that described first
Guide rail and second guide rail along linear extension, the collision element setting first guide rail and second guide rail it
Between.
9. the power battery crash tests device of pure electric automobile according to claim 6, which is characterized in that the wheel
Outer peripheral surface be equipped with the annular groove that cooperates with respective track.
10. a kind of test method for applying power battery crash tests device as claimed in any one of claims 1-9 wherein, special
Sign is, comprising:
S100: acceleration-controlled system issues acceleration signals to the controller of test vehicle, and the test vehicle moves to default touch
It hits position and power battery collides with collision element；
S200: judge whether the power battery disconnects with being electrically connected for the controller；
S300: if it is, the auxiliary power module of braking control system is electrically connected with the controller, the control for brake system
The brake pedal braking of the braking executive component driving test vehicle of system is to issue brake signal to the controller.
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| CN201610177037.0A CN105675309B (en) | 2016-03-25 | 2016-03-25 | The power battery crash tests device and test method of pure electric automobile |
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| CN117804721B (en) * | 2024-02-29 | 2024-04-30 | 中汽研新能源汽车检验中心(天津)有限公司 | Battery pack collision evaluation system and method |
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Inventor after: Yue Wei Inventor after: Wang Yingliang Inventor after: Ma Liang Inventor after: Yang Chunsheng Inventor after: Dong Yinglei Inventor before: Wang Yingliang Inventor before: Yue Wei Inventor before: Ma Liang Inventor before: Yang Chunsheng Inventor before: Dong Yinglei |