CN113911059B - Tire energy leakage method and device - Google Patents
Tire energy leakage method and device Download PDFInfo
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- CN113911059B CN113911059B CN202111210026.5A CN202111210026A CN113911059B CN 113911059 B CN113911059 B CN 113911059B CN 202111210026 A CN202111210026 A CN 202111210026A CN 113911059 B CN113911059 B CN 113911059B
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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
- B60R21/01—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
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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
- B60R21/01—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
- B60R21/0136—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 actual contact with an obstacle, e.g. to vehicle deformation, bumper displacement or bumper velocity relative to the vehicle
Abstract
The invention discloses a method and a device for tire energy leakage, wherein the method comprises the following steps: firstly, acquiring the collision speed and the collision working condition of an accident vehicle; and when the collision speed is more than or equal to the preset speed value or the collision working condition meets the preset condition, after the state of the accident vehicle is judged to be the serious accident state, controlling the tire of the accident vehicle to break and discharge energy according to the collision working condition. By adopting the embodiment of the invention, the safety of the tire leakage can be improved, thereby further improving the safety of vehicle driving.
Description
Technical Field
The invention relates to the technical field of automatic control, in particular to a method and a device for tire energy leakage.
Background
When a vehicle has a collision accident, collision energy is consumed and absorbed by deformation of a vehicle body part, failure of a vehicle structure and the like and is finally transmitted into a passenger compartment, so that passengers are damaged. Therefore, the more energy is absorbed by the vehicle due to deformation, failure, or the like, the less the occupant is injured. When a vehicle is in severe collision, the tire is extruded to move backwards so as to invade the passenger cabin, if the tire is broken at the moment, energy can be effectively discharged, collision energy transmitted to the passenger cabin is reduced, and then the damage to passengers in the vehicle is reduced.
In the prior art, the limitations of the method for discharging energy through the tire (such as a needle-prick tire device) are as follows:
1. the applicable collision form is limited, and the collision form only has effects on a certain specific working condition, such as frontal collision;
2. the vehicle tire needs to be extruded and moved backwards for a certain distance, so that the breaking and energy absorption effects can be achieved when the vehicle tire contacts the trigger device and generates continuous interaction force, and the breaking and energy absorption effects can not be ensured in all serious collision accidents;
3. the method can only lead a certain extruded tire to be broken, and has limited energy absorption;
4. the method adopts a needle-prick structure to break the tire, and the risk of vehicle control instability and the like can be caused by mistaken prick tire air leakage due to tire jumping when the vehicle runs.
In conclusion, when a serious collision accident occurs, the conventional tire energy leakage method has the problem of low safety.
Disclosure of Invention
The embodiment of the invention provides a tire energy leakage method and device, which improve the safety of tire energy leakage and further improve the safety of vehicle driving.
A first aspect of an embodiment of the present application provides a tire leakage energy method, including:
acquiring the collision speed and the collision working condition of an accident vehicle;
and when the collision speed is greater than or equal to the preset speed value or the collision working condition meets the preset condition, controlling the tire of the accident vehicle to break and discharge energy according to the collision working condition after the accident vehicle is judged to be in the serious accident state.
In a possible implementation manner of the first aspect, the tire of the accident vehicle is controlled to break and release energy according to the collision condition, which is specifically that:
the collision condition comprises the following steps: a front collision condition and a front offset collision condition;
when the collision working condition is a frontal collision working condition, tires of a left front wheel and a right front wheel of the accident vehicle are controlled to break and release energy;
and when the collision working condition is a front offset collision working condition, controlling the tires of the left front wheel or the right front wheel of the accident vehicle to break and discharge energy according to the offset angle.
In one possible implementation manner of the first aspect, after determining that the state of the accident vehicle is a serious accident state, the method further includes:
and sending a first instruction to a tire breaking device of the accident vehicle so that the tire breaking device controls the tire of the accident vehicle to break and release energy according to the collision working condition after receiving the first instruction.
In a possible implementation manner of the first aspect, the collision condition satisfies a preset condition, which specifically is:
acquiring a deformation area range of the accident vehicle, and judging that the collision working condition meets a preset condition when the deformation area range is larger than a preset area range; and when the deformation area is smaller than or equal to the preset area range, judging that the collision working condition does not meet the preset condition.
In a possible implementation manner of the first aspect, the method further includes:
and when the collision speed is smaller than the preset speed value or the collision working condition does not meet the preset condition, after the condition that the accident vehicle is in the non-serious accident condition is judged, a first instruction is not sent to a tire breaking device of the accident vehicle.
In one possible implementation manner of the first aspect, the preset speed value is 32km/h, and the preset area range is a longitudinal beam middle section of the accident vehicle.
A second aspect of the embodiments of the present application provides a tire relief device, including: the energy leakage control system comprises an acquisition module and an energy leakage module;
the acquisition module is used for acquiring the collision speed and the collision working condition of the accident vehicle;
and the energy leakage module is used for controlling the tire of the accident vehicle to break and discharge energy according to the collision working condition after judging that the state of the accident vehicle is a serious accident state when the collision speed is greater than or equal to the preset speed value or the collision working condition meets the preset condition.
In a possible implementation manner of the second aspect, the tire of the accident vehicle is controlled to rupture and discharge energy according to the collision condition, specifically:
the collision condition comprises the following steps: a frontal collision condition and a frontal offset collision condition;
when the collision working condition is a frontal collision working condition, controlling tires of a left front wheel and a right front wheel of the accident vehicle to break and release energy;
and when the collision working condition is a front offset collision working condition, controlling the tires of the left front wheel or the right front wheel of the accident vehicle to break and discharge energy according to the offset angle.
In one possible implementation manner of the second aspect, after determining that the state of the accident vehicle is a serious accident state, the method further includes:
and sending a first instruction to a tire breaking device of the accident vehicle so that the tire breaking device controls the tire of the accident vehicle to break and release energy according to the collision working condition after receiving the first instruction.
In a possible implementation manner of the second aspect, the collision condition satisfies a preset condition, which specifically is:
acquiring a deformation area range of the accident vehicle, and judging that the collision working condition meets a preset condition when the deformation area range is larger than a preset area range; and when the deformation area is smaller than or equal to the range of the preset area, judging that the collision working condition does not meet the preset condition.
Compared with the prior art, the method and the device for vehicle tire energy leakage provided by the embodiment of the invention comprise the following steps: firstly, acquiring the collision speed and the collision working condition of an accident vehicle; and when the collision speed is more than or equal to the preset speed value or the collision working condition meets the preset condition, after the state of the accident vehicle is judged to be the serious accident state, controlling the tire of the accident vehicle to break and discharge energy according to the collision working condition.
The beneficial effects are that: according to the embodiment of the invention, after the accident vehicle is judged to be in a serious accident state according to the collision speed and the collision working condition of the accident vehicle, the tire of the accident vehicle is controlled to break and release energy according to the collision working condition, so that the greater danger caused by the fact that the accident vehicle is not controlled because the tire release energy is directly carried out according to a slight and common accident can be effectively avoided, the error energy release of the tire is avoided, the safety of the tire release energy is improved, and the safety of vehicle driving is further improved.
In addition, the embodiment of the invention controls the tire of the accident vehicle to generate the point explosion through a device similar to an air bag in the tire of the accident vehicle, so that the energy absorption effect is further achieved. Unlike the prior art, the puncture structure is not adopted to break the tire, so that the dangers of vehicle control instability and the like caused by mistaken puncture and air leakage of the tire due to tire jumping are avoided. Therefore, the invention can ensure the safety of vehicle driving.
Moreover, the invention can control the tire of the accident vehicle to break and release energy according to various collision working conditions, and can solve the limitation that the tire can only break and absorb energy according to specific working conditions in the prior art, so that the tire breaking device can make different tire breaking strategies according to comprehensive collision working conditions, thereby realizing the comprehensive protection of the accident vehicle.
Finally, once the accident vehicle is judged to be in the serious accident state, the tire of the accident vehicle is controlled to break and discharge energy according to the collision working condition, all serious collision accidents can be guaranteed to break and absorb energy, and the vehicle in the serious accident state is prevented from further causing greater personal danger due to untimely tire discharge.
Drawings
FIG. 1 is a schematic flow chart of a tire deflation method according to an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating a first event according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a second accident scenario provided by an embodiment of the present invention;
FIG. 4 is a third accident scenario provided by one embodiment of the present invention;
FIG. 5 is a fourth accident scenario provided by an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a tire deflation device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, which is a schematic flow chart of a tire leakage method according to an embodiment of the present invention, the method includes steps S101 to S102:
s101: and acquiring the collision speed and the collision working condition of the accident vehicle.
S102: and when the collision speed is greater than or equal to the preset speed value or the collision working condition meets the preset condition, controlling the tire of the accident vehicle to break and discharge energy according to the collision working condition after the accident vehicle is judged to be in the serious accident state.
The device similar to the air bag in the tire of the accident vehicle can be controlled to generate the point explosion, so that the tire of the accident vehicle can absorb energy.
In this embodiment, according to the collision condition control the tire of the accident vehicle is ruptured and energy is let out, specifically:
the collision condition comprises the following steps: a frontal collision condition and a frontal offset collision condition;
when the collision working condition is the frontal collision working condition, controlling tires of a left front wheel and a right front wheel of the accident vehicle to break and release energy;
and when the collision working condition is the front offset collision working condition, controlling the tires of the left front wheel or the right front wheel of the accident vehicle to break and release energy according to the offset angle.
Wherein, the front offset collision operating mode includes: the front side is inclined to the left and the front side is inclined to the right. When the front side of the accident vehicle is judged to be in a left working condition according to the offset angle, only the left front wheel of the accident vehicle participates in energy absorption, so that the tire of the left front wheel of the accident vehicle is controlled to break and release energy; and similarly, when the front side is judged to be in the right working condition according to the offset angle, only the right front wheel of the accident vehicle participates in energy absorption, so that the tire of the right front wheel of the accident vehicle is controlled to break and release energy.
Similarly, when the collision working condition is a frontal collision working condition, the left front wheel and the right front wheel of the accident vehicle participate in energy absorption, so that tires of the left front wheel and the right front wheel of the accident vehicle are controlled to break and release energy.
In this embodiment, after the determining that the state of the accident vehicle is the serious accident state, the method further includes:
and sending a first instruction to a tire breaking device of the accident vehicle, so that the tire breaking device controls the tire of the accident vehicle to break and discharge energy according to the collision working condition after receiving the first instruction.
Wherein the first command is a firing command.
In a specific embodiment, the collision condition satisfies a preset condition, which specifically includes:
acquiring a deformation area range of the accident vehicle, and judging that the collision working condition meets the preset condition when the deformation area range is larger than a preset area range; and when the deformation area is smaller than or equal to the preset area range, judging that the collision working condition does not meet the preset condition.
In a specific embodiment, the method further comprises:
and when the collision speed is smaller than the preset speed value or the collision working condition does not meet the preset condition, after the accident vehicle is judged to be in a non-serious accident state, the first instruction is not sent to a tire breaking device of the accident vehicle.
In a specific embodiment, the preset speed value is 32km/h, and the preset area range is a middle section of a longitudinal beam of the accident vehicle.
In one embodiment, the optimal burst and energy release time of the tire under different collision conditions can be set according to the ignition strategy of the safety airbag in the accident vehicle and the protection requirement of the passenger, so as to achieve the optimal protection effect.
Further, the tire energy release of the accident vehicle and the opening of the safety air bag can be controlled by the same controller, and the difference is that when the collision speed is more than or equal to 24km/h, the safety air bag is controlled to be opened; and when the collision speed is greater than or equal to 32km/h, controlling the energy leakage of the tire.
In this embodiment, the crash condition further includes: a rear impact condition and a rear offset impact condition.
Correspondingly, when the collision working condition is the rear collision working condition, tires of a left rear wheel and a right rear wheel of the accident vehicle are controlled to break and release energy;
and when the collision working condition is the rear offset collision working condition, controlling tires of the left rear wheel or the right rear wheel of the accident vehicle to break and release energy according to the offset angle.
Wherein, the rear offset collision operating mode comprises: the rear left working condition and the rear right working condition. When the rear side is judged to be in the left working condition according to the offset angle, only the left rear wheel of the accident vehicle participates in energy absorption, so that the tire of the left rear wheel of the accident vehicle is controlled to break and release energy; and similarly, when the rear side is judged to be in the right working condition according to the offset angle, only the right rear wheel of the accident vehicle participates in energy absorption, so that the tire of the right rear wheel of the accident vehicle is controlled to break and release energy.
Similarly, when the collision working condition is a rear collision working condition, the left rear wheel and the right rear wheel of the accident vehicle participate in energy absorption, so that tires of the left rear wheel and the right rear wheel of the accident vehicle are controlled to break and release energy.
To further explain the state of the accident vehicle, please refer to fig. 2 to 5, and fig. 2 to 5 are a first accident schematic diagram, a second accident schematic diagram, a third accident schematic diagram and a fourth accident schematic diagram respectively provided by an embodiment of the present invention.
Wherein, fig. 2 represents that the collision speed is 15km/h, and the deformation region range includes: the collision speed of a first accident vehicle in the first accident is smaller than a preset speed value (namely 32 km/h), the deformation area range of the first accident vehicle in the first accident is smaller than a preset area range (namely the deformation area of the vehicle does not reach the middle section of the longitudinal beam), and the collision condition does not meet preset conditions, so that the state of the first accident vehicle in the first accident is judged to be a non-serious accident state, and a first instruction is not sent to a tire breaking device of the first accident vehicle.
FIG. 3 represents a collision velocity of 50km/h, the deformation region range including: the whole front cabin piece and the collision working condition are the second accident of the front collision working condition, the collision speed of the second accident vehicle in the second accident is larger than the preset speed value (namely 32 km/h), the deformation area range of the second accident vehicle in the second accident is larger than the preset area range (namely the vehicle deformation area exceeds the middle section of the longitudinal beam), and the collision working condition meets the preset condition, so that the state of the second accident vehicle in the second accident is judged to be a serious accident state, and a first instruction is sent to a tire breaking device of the second accident vehicle.
Fig. 4 represents a third accident in which the collision speed is 50km/h and the collision condition is a frontal collision condition, and since the collision speed of the third vehicle in the third accident is greater than a preset speed value (i.e., 32 km/h), it is determined that the state of the third vehicle in the third accident is a serious accident state, and a first command should be sent to a tire breaking device of the third vehicle; in the third accident, the collision working condition of the third accident vehicle is a frontal collision working condition, so the tire rupture device controls the tires of the left front wheel and the right front wheel of the third accident vehicle to rupture and discharge energy after receiving the first instruction.
Fig. 5 represents a fourth accident in which the collision speed is 64km/h and the collision condition is a frontal offset collision condition, and since the collision speed of the fourth vehicle in the fourth accident is greater than the preset speed value (i.e., 32 km/h), it is determined that the fourth vehicle in the fourth accident is in a serious accident state, and a first command should be sent to a tire breaking device of the fourth vehicle; in the fourth accident, the collision working condition of the fourth accident vehicle is a front offset collision working condition, the front offset left working condition is judged according to the offset angle, only the left front wheel of the accident vehicle participates in energy absorption, and the tire breaking device controls the tire of the left front wheel of the fourth accident vehicle to break and release energy after receiving the first instruction.
To further explain the tire leakage device, please refer to fig. 6, fig. 6 is a schematic structural diagram of a tire leakage device according to an embodiment of the present invention, including: an acquisition module 601 and a discharge module 602.
The obtaining module 601 is used for obtaining the collision speed and the collision condition of the accident vehicle.
The energy release module 602 is configured to, when the collision speed is greater than or equal to a preset speed value or the collision condition meets a preset condition, determine that the state of the accident vehicle is a serious accident state, and control tires of the accident vehicle to break and release energy according to the collision condition.
In this embodiment, according to the collision condition control the tire of the accident vehicle is ruptured and energy is let out, specifically:
the collision condition comprises the following steps: a frontal collision condition and a frontal offset collision condition;
when the collision working condition is the frontal collision working condition, controlling tires of a left front wheel and a right front wheel of the accident vehicle to break and release energy;
and when the collision working condition is the front offset collision working condition, controlling the tires of the left front wheel or the right front wheel of the accident vehicle to break and release energy according to the offset angle.
In one embodiment, after determining that the state of the accident vehicle is a serious accident state, the method further includes:
and sending a first instruction to a tire breaking device of the accident vehicle so that the tire breaking device controls the tire of the accident vehicle to break and discharge energy according to the collision working condition after receiving the first instruction.
In a specific embodiment, the collision condition satisfies a preset condition, which specifically includes:
acquiring a deformation area range of the accident vehicle, and judging that the collision working condition meets the preset condition when the deformation area range is larger than a preset area range; and when the deformation area is smaller than or equal to the preset area range, judging that the collision working condition does not meet the preset condition.
The embodiment of the invention firstly obtains the collision speed and the collision working condition of the accident vehicle through an obtaining module 601; and then when the collision speed is greater than or equal to the preset speed value or the collision working condition meets the preset condition, the energy release module 602 controls the tire of the accident vehicle to break and release energy according to the collision working condition after judging that the state of the accident vehicle is a serious accident state.
According to the embodiment of the invention, after the accident vehicle is judged to be in a serious accident state according to the collision speed and the collision working condition of the accident vehicle, the tire of the accident vehicle is controlled to break and release energy according to the collision working condition, so that the greater danger caused by the fact that the accident vehicle is not controlled because the tire release energy is directly carried out according to a slight and common accident can be effectively avoided, the error energy release of the tire is avoided, the safety of the tire release energy is improved, and the safety of vehicle driving is further improved.
In addition, the embodiment of the invention controls the device similar to the air bag in the tire of the accident vehicle to generate the point explosion, so that the tire of the accident vehicle further achieves the energy absorption effect. Unlike the prior art, the puncture structure is not adopted to break the tire, so that the dangers of vehicle control instability and the like caused by mistaken puncture and air leakage of the tire due to tire jumping are avoided. Therefore, the invention can ensure the driving safety of the vehicle.
Moreover, the invention can control the tire of the accident vehicle to break and release energy according to various collision working conditions, and can solve the limitation that the tire can only break and absorb energy according to specific working conditions in the prior art, so that the tire breaking device can make different tire breaking strategies according to comprehensive collision working conditions, thereby realizing the comprehensive protection of the accident vehicle.
Finally, once the accident vehicle is judged to be in a serious accident state, the tire of the accident vehicle is controlled to break and release energy according to the collision working condition, all serious collision accidents can be guaranteed to break and absorb energy, and the phenomenon that the tire of the vehicle in the serious accident state cannot release energy in time to further cause greater personal danger is avoided.
The foregoing is a preferred embodiment of the present invention, and it should be noted that it would be apparent to those skilled in the art that various modifications and enhancements can be made without departing from the principles of the invention, and such modifications and enhancements are also considered to be within the scope of the invention.
Claims (8)
1. A method of discharging a tire, comprising:
acquiring the collision speed and the collision working condition of an accident vehicle;
when the collision speed is greater than or equal to a preset speed value or the collision working condition meets a preset condition, after the accident vehicle is judged to be in a serious accident state, the tire of the accident vehicle is controlled to be broken and discharged according to the collision working condition, and the method specifically comprises the following steps:
the collision condition comprises the following steps: a frontal collision condition and a frontal offset collision condition;
when the collision working condition is the frontal collision working condition, controlling tires of a left front wheel and a right front wheel of the accident vehicle to break and release energy;
and when the collision working condition is the front offset collision working condition, controlling the tires of the left front wheel or the right front wheel of the accident vehicle to break and release energy according to the offset angle.
2. A tire deflation method according to claim 1, wherein after the determining the status of the accident vehicle is a serious accident status, further comprising:
and sending a first instruction to a tire breaking device of the accident vehicle, so that the tire breaking device controls the tire of the accident vehicle to break and discharge energy according to the collision working condition after receiving the first instruction.
3. The tire energy leakage method according to claim 2, wherein the collision condition satisfies a preset condition, specifically:
acquiring a deformation area range of the accident vehicle, and judging that the collision working condition meets the preset condition when the deformation area range is larger than a preset area range; and when the deformation area is smaller than or equal to the preset area range, judging that the collision working condition does not meet the preset condition.
4. A method of tire deflation as in claim 3, further comprising:
and when the collision speed is smaller than the preset speed value or the collision working condition does not meet the preset condition, after the condition that the accident vehicle is in a non-serious accident state is judged, the first instruction is not sent to a tire breaking device of the accident vehicle.
5. A tyre de-energizing method according to claim 4, wherein the preset speed value is 32km/h, and the preset area range is a longitudinal beam middle section of the accident vehicle.
6. A tire relief device, comprising: the energy leakage control system comprises an acquisition module and an energy leakage module;
the acquisition module is used for acquiring the collision speed and the collision working condition of the accident vehicle;
the energy leakage module is used for controlling tires of the accident vehicle to break and discharge energy according to the collision working condition after judging that the state of the accident vehicle is a serious accident state when the collision speed is greater than or equal to a preset speed value or the collision working condition meets a preset condition, and specifically comprises the following steps:
the collision condition comprises: a frontal collision condition and a frontal offset collision condition;
when the collision working condition is the frontal collision working condition, controlling tires of a left front wheel and a right front wheel of the accident vehicle to break and release energy;
and when the collision working condition is the front offset collision working condition, controlling the tires of the left front wheel or the right front wheel of the accident vehicle to break and release energy according to the offset angle.
7. The tire unloading apparatus of claim 6, further comprising, after determining that the condition of the accident vehicle is a serious accident condition:
and sending a first instruction to a tire breaking device of the accident vehicle so that the tire breaking device controls the tire of the accident vehicle to break and discharge energy according to the collision working condition after receiving the first instruction.
8. The tire leakage energy device according to claim 7, wherein the collision condition satisfies a preset condition, specifically:
acquiring a deformation area range of the accident vehicle, and judging that the collision working condition meets the preset condition when the deformation area range is larger than a preset area range; and when the deformation area is smaller than or equal to the preset area range, judging that the collision working condition does not meet the preset condition.
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| JP2014088074A (en) * | 2012-10-29 | 2014-05-15 | Mitsubishi Motors Corp | Collision determination device of vehicle |
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