CN110979233A - Automatic escape device for vehicle falling into water and control method thereof - Google Patents
Automatic escape device for vehicle falling into water and control method thereof Download PDFInfo
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- CN110979233A CN110979233A CN201911413450.2A CN201911413450A CN110979233A CN 110979233 A CN110979233 A CN 110979233A CN 201911413450 A CN201911413450 A CN 201911413450A CN 110979233 A CN110979233 A CN 110979233A
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- level sensor
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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
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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
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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
- B60R2021/0002—Type of accident
- B60R2021/0016—Fall in water
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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
- B60R2021/01204—Actuation parameters of safety arrangents
- B60R2021/01211—Expansion of air bags
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- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
The invention discloses an automatic escape device for vehicles falling into water and a control method thereof, and the automatic escape device comprises a water level sensor, an escape device storage battery, a gas generator, an escape device controller and an air bag, wherein the water level sensor is connected to an electronic control unit of the vehicle through signals, the escape device storage battery is electrically connected to the vehicle storage battery, the escape device controller and the gas generator, the escape device controller is connected to the gas generator through signals, the gas generator is connected with the air bag, and a connection point of the escape device storage battery and the vehicle storage battery and a connection point of the escape device storage battery and the gas generator are positioned in a trunk supporting rod. The invention is provided with the independent escape storage battery and the escape device controller, and adopts the double-path control of the vehicle electronic control unit and the escape device controller, thereby avoiding the condition that the vehicle cannot be used due to accidents; meanwhile, the escape storage battery and the escape device controller adopt a closed structure, and when a vehicle power system is damaged, the escape storage battery opens the air bag, so that the safety is effectively improved.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to an automatic escape device for vehicles falling into water and a control method thereof.
Background
With the continuous improvement of national economy and the gradual maturity of automobile consumption market, automobiles become indispensable tools for commuting and riding instead of walk for people gradually, and meanwhile, automobile technology is also continuously improved, so that the influence caused by traffic accidents is reduced while the performance of the automobiles is improved. The influence of the traditional traffic accidents is greatly improved at present, but the safety devices and researches under the conditions of falling into water, falling into rivers and the like are less. However, most of people in the vehicle are in a panic after the vehicle falls into water, even some people directly feel the bearings, and can not effectively and quickly open the vehicle door or window for escape, and in addition, because the water pressure difference between the inside and the outside of the vehicle is large, the strength is very small under tension, especially female people, particularly when a vehicle power supply system fails due to short circuit after being soaked, the vehicle door, the vehicle window, a skylight and the like can not be normally opened at all, the physical strength of people is wasted in the process of trying to escape the vehicle, and therefore, the casualties of drivers and passengers who fall into the vehicle often happen; especially when the vehicle falls from an overhead or a bridge, the vehicle can quickly sink to the water bottom, and a driver and passengers are less likely to return.
At present, the research aiming at the vehicle falling into water is less, the related research mainly aims at the situation that the automobile is prevented from being submerged under the rainstorm condition, and the vehicle is supported by installing an air bag or an air cushion at the bottom of the vehicle or on a parking space. Because the vehicle has heavy weight, the bottom space can be greatly influenced by installing an air bag or an air cushion at the bottom of the vehicle, and the requirement on the height of a chassis is higher, so that the requirement of a common vehicle is difficult to meet; moreover, in order to ensure the effective work of the air bag, the bottom of the vehicle is difficult to be protected by a steel plate, and related parts can be easily damaged during the bumping/collision process of the vehicle; in addition, when the vehicle falls into water, the vehicle head falls into water first, at the moment, a vehicle power supply system can be immersed into water and cannot be used, and risks exist when related functions can be normally used.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an automatic escape device for vehicles falling into water and a control method thereof, wherein the automatic escape device improves the safety and the reliability.
In order to achieve the above object, an automatic escape device for vehicles falling into water according to an aspect of the present invention includes a water level sensor, an escape device battery, a gas generator, an escape device controller, and an airbag mounted on a body of the vehicle, wherein the water level sensor is in signal connection with an electronic control unit of the vehicle, the escape device battery is electrically connected to the vehicle battery, the escape device controller, and the gas generator, the escape device controller is in signal connection with the gas generator, the gas generator is in signal connection with the airbag, and a connection point of the escape device battery and the vehicle battery, and a connection point of the escape device battery and the gas generator are located inside a trunk support rod.
Preferably, the water level sensor comprises a front water level sensor and a rear water level sensor, the front water level sensor is installed in front of a front wheel fender of the vehicle, and the rear water level sensor is installed behind a rear wheel fender of the vehicle.
As a preferred scheme, the storage battery of the escape device is arranged inside the trunk supporting rod, the anode of the storage battery of the escape device is provided with a charging diode, and the anode and the cathode of the storage battery of the escape device are respectively connected with the anode and the cathode of the storage battery of the vehicle.
Preferably, the escape apparatus controller is mounted in the trunk support bar in close proximity to the escape apparatus battery.
Preferably, the gas generator and the airbag are mounted inside a trunk lid, an airbag fixing edge of the airbag is fixed, and an airbag body of the airbag is fitted inside the trunk lid.
Preferably, the automatic escape device for vehicles falling into water further comprises a spring actuator for bouncing the lock pin of the trunk, and the spring actuator is mounted at the lower part of the trunk decorative plate and is parallel to the lock pin of the trunk.
Preferably, the automatic escape device for vehicles falling into water further comprises a protective baffle, wherein the protective baffle is abutted against the air bag and the gas generator and is embedded on the trunk cover close to the side edge of the trunk support rod.
Preferably, the water level sensor, the escape device storage battery, the gas generator, the escape device controller, and the airbag are symmetrically arranged in pairs from left to right with a central axis of the vehicle as a symmetry axis.
In order to achieve the above object, another aspect of the present invention provides a method for controlling an automatic escape device when a vehicle falls into water, comprising the steps of: the electronic control unit detects whether the manual control mode is adopted, and if the manual control mode is adopted, the electronic control unit sends out an action execution command; if the detection is not in the manual control mode, judging whether the water level sensor detects water or not, and if the water level sensor detects water, sending an action execution command by the electronic control unit; if the water level sensor does not detect water, the electronic control unit judges a collision signal, and if the collision signal is detected, the electronic control unit sends an action execution command; if the collision signal is not detected, returning to the step of detecting whether the collision signal is in the manual control mode by the electronic control unit; the executing the action command includes commanding the gas generator to generate gas to inflate the airbag.
Preferably, the method further comprises the following steps: the escape device controller judges whether the communication with the electronic control unit is normal or not, and if the communication is judged to be abnormal, the escape device controller sends an action execution command; if the communication is judged to be normal, detecting whether the communication is in a manual control mode, if so, detecting whether the action command is executed by the escape device controller, if not, executing the action command, and if so, returning to the escape device controller to judge whether the communication with the electronic control unit is normal; if the water level sensor is judged not to be in the manual control mode, judging whether the water level sensor signal detects water, if so, detecting whether the action command is executed by the escape device controller, if not, executing the action command, and if so, returning to the escape device controller to judge whether the communication with the electronic control unit is normal; if the water level sensor does not detect water, judging whether a collision signal is detected, if so, detecting whether an action command is executed by the escape device controller, if not, executing the action command, and if so, returning to the escape device controller to judge whether the communication with the electronic control unit is normal; and if the collision signal is not detected, returning to the escape device controller to judge whether the communication with the electronic control unit is normal.
The invention has the beneficial effects that: the invention relates to an automatic escape device for vehicles falling into water and a control method thereof.A vehicle electronic control unit and an escape device controller are provided with independent escape storage batteries and an escape device controller, and a redundant design of double-path control of the vehicle electronic control unit and the escape device controller is adopted, so that the condition that the escape device cannot be used when the vehicle has an accident is avoided; meanwhile, the escape storage battery and the escape device controller are of a closed structure, and when the power supply system is damaged due to the fact that the vehicle is immersed in water, the escape storage battery opens the air bag, so that safety is effectively improved.
Drawings
Fig. 1 is a side view of a vehicle employing an automatic escape apparatus for vehicles falling into water according to a preferred embodiment of the present invention;
FIG. 2 is a rear elevational view of the vehicle of FIG. 1 with the trunk lid open;
FIG. 3 is a rear elevational view of the vehicle of FIG. 2 with the first and second airbag guards removed;
fig. 4 is an electrical connection diagram of the automatic escape device for vehicles falling into water according to the preferred embodiment of the present invention;
fig. 5 is a flowchart of a control method of the automatic escape device for vehicles falling into water under the control of the electronic control unit according to the preferred embodiment of the invention;
fig. 6 is a control logic diagram of the control method of the automatic escape device for vehicles falling into water under the control of the controller of the escape device in accordance with the preferred embodiment of the present invention.
The components in the figures are numbered as follows: the vehicle comprises a vehicle body 1, an electronic control unit 2, a vehicle storage battery 3, a first water level sensor 4.1, a second water level sensor 4.2, a third water level sensor 4.3, a fourth water level sensor 4.4, a first escape device storage battery 5.1, a second escape device storage battery 5.2, a first gas generator 6.1, a second gas generator 6.2, a first escape device controller 7.1, a second escape device controller 7.2, a trunk left support rod 8.1, a trunk right support rod 8.2, a first air bag protective baffle 9.1, a second air bag protective baffle 9.2, a first air bag 10.1 (wherein a fixed edge 10.1.1 of the first air bag, a first air bag body 10.1.2), a second air bag 10.2 (wherein a fixed edge 10.2.1 of the second air bag, a second air bag body 10.2.2), a box cover 11, a trunk lock 12.1, a trunk lock actuator 12.2, a spring actuator 13 and a rear bumper 14.
Detailed Description
The invention is described in further detail below with reference to the figures and the specific embodiments.
As shown in fig. 1, 2 and 3, which are schematic structural views of a vehicle adopting the automatic escape apparatus for vehicle falling into water according to the preferred embodiment of the present invention, the vehicle includes a vehicle body 1, an electronic control unit 2, a vehicle battery 3, a left trunk support bar 8.1, a right trunk support bar 8.2, a trunk lid 11, a trunk lock 12.1, a trunk lock actuator 12.2 and a rear bumper 14. The electronic control unit 2 and the vehicle battery 3 are mounted on the front, lower part of the front hatch of the automobile.
The automatic escape device for vehicles falling into water comprises water level sensors (a first water level sensor 4.1, a second water level sensor 4.2, a third water level sensor 4.3 and a fourth water level sensor 4.4) arranged on a vehicle body 1, escape device storage batteries (a first escape device storage battery 5.1 and a second escape device storage battery 5.2), gas generators (a first gas generator 6.1 and a second gas generator 6.2), escape device controllers (a first escape device controller 7.1 and a second escape device controller 7.2), protective baffles (a first protective baffle 9.1 and a second protective baffle 9.2), air bags (a first air bag 10.1 and a second air bag 10.2) and a spring actuator 13.
The first water level sensor 4.1 and the second water level sensor 4.2 are arranged in front of a fender of a front wheel of the automobile at the height of 2/3 wheels, so that the influence of water thrown out by the wheels when the automobile runs on a muddy road section is avoided, and the signal accuracy is prevented from being influenced on rainy days because the first water level sensor 4.1 and the second water level sensor 4.1 are arranged on the lower portion of a front hatch cover. The third water level sensor 4.3 and the fourth water level sensor 4.4 are installed at the height of about 2/3 wheels behind the rear wheel fender of the automobile and are positioned at the lower part of the trunk of the automobile, so that the influence on the accuracy of signals when the automobile runs or rains is avoided. Meanwhile, the first water level sensor 4.1, the second water level sensor 4.2, the third water level sensor 4.3 and the fourth water level sensor 4.4 are connected with the electronic control unit 2, and the collected signals are transmitted to the electronic control unit 2 in real time.
The first escape device storage battery 5.1 and the second escape device storage battery 5.2 are respectively arranged inside the trunk left support rod 8.1 and the trunk right support rod 8.2 and close to the inner side of the vehicle, the charging diodes are arranged on the positive electrodes of the first escape device storage battery 5.1 and the second escape device storage battery 5.2, and then the positive electrode and the negative electrode of the charging diodes are connected with the positive electrode and the negative electrode of the vehicle storage battery 3 to ensure that the electric quantity of the first escape device storage battery 5.1 and the second escape device storage battery 5.2 is kept in a sufficient state.
The connecting points of the first escape device storage battery 5.1, the second escape device storage battery 5.2 and the vehicle storage battery 3 are positioned in the trunk left supporting rod 8.1 and the trunk right supporting rod 8.2, and the end positions are subjected to sealing treatment, so that the influence on the stability of the power system of the escape device due to the fact that the power system is immersed after falling into water is avoided. The diodes arranged on the anodes of the first escape device storage battery 5.1 and the second escape device storage battery 5.2 further ensure that the first escape device storage battery 5.1 and the second escape device storage battery 5.2 are fed or the anodes and the cathodes of the first escape device storage battery and the second escape device storage battery are short-circuited after falling into water.
The first escape device controller 7.1 and the second escape device controller 7.2 are respectively arranged in the trunk left support rod 8.1 and the trunk right support rod 8.2 close to the positions of the tails of the vehicles and respectively connected with the first escape device battery 5.1 and the second escape device battery 5.2, and the first escape device battery 5.1 and the second escape device battery 5.2 are respectively close to the first escape device battery 5.1 and the second escape device battery 5.2.
The first gas generator 6.1 and the second gas generator 6.2 are installed inside the trunk lid 11, are respectively close to the first escape device storage battery 5.1 and the second escape device storage battery 5.2 and are connected with the first escape device storage battery and the second escape device storage battery 5.2, the connecting points of the first gas generator and the second gas generator are located in the trunk supporting rods, the end portions of the first gas generator and the second gas generator are sealed, meanwhile, connecting wires of the first gas generator and the second escape device storage battery are installed along the contact positions of the trunk left supporting rod 8.1 and the trunk right supporting rod 8.2 and the trunk lid 11, no suspended part exists, and.
The first air bag 10.1 and the second air bag 10.2 are positioned on the inner side of the trunk cover 11 and are respectively abutted against the first air generator 6.1 and the second air generator 6.2, a half-edge installation scheme is adopted, namely, the first air bag fixing edge 10.1.1 and the second air bag fixing edge 10.2.1 which are abutted against the first air generator 6.1, the second air generator 6.2, the left support rod 8.1 of the trunk and the right support rod 8.2 of the trunk are only fixed, the first air bag body 10.1.2 and the second air bag body 10.2.2 are directly embedded on the inner side of the trunk cover 11 and are converged at the middle position of the trunk cover 11, so that the air bags are automatically scattered to two sides after being inflated and expanded, and a sufficient escape space is provided for escape personnel.
Meanwhile, the first air bag 10.1 and the second air bag 10.2 are respectively connected with the first gas generator 6.1 and the second gas generator 6.2. When the first gas generator 6.1 and the second gas generator 6.2 start to act after receiving the command, the gas generating agent is ignited, a large amount of gas is generated, and the gas enters the first air bag 10.1 and the second air bag 10.2 after being filtered and cooled, so that the air bags burst the cushion in a very short time and rapidly expand towards two sides.
First guard flap 9.1 and second guard flap 9.2 are respectively near first gasbag 10.1, second gasbag 10.2 and first gas generator 6.1, second gas generator 6.2, and inlay on trunk lid 12 near trunk bracing piece side, and the middle of two guard flaps passes through buckle mode joint to be provided with the line of weakness at first guard flap 9.1 and second guard flap 9.2 border.
When the first air bag 10.1 and the second air bag 10.2 act and expand, the buckles connected between the air bags are opened, and the first air bag 10.1, the second air bag 10.22, the first protective baffle 9.1 and the second protective baffle 9.2 are unfolded towards two sides. When abnormal conditions such as incapability of opening of the buckle exist, the airbag is expanded, and the impact force enables the protective baffle to break along the weakening line, so that the airbag is normally opened.
The spring actuator 13 is mounted on the lower portion of the trunk trim panel in parallel with the trunk latch pin. When the escape device performs action, the trunk lock 12 is firstly opened, and the spring actuator 13 acts to eject the trunk lid.
Referring to fig. 4, the vehicle battery 3 is connected to the electronic control unit 2 and to the first escape apparatus battery 5.1 and the second escape apparatus battery 5.2 via diodes. The electronic control unit 2 is connected with water level sensors (a first water level sensor 4.1, a second water level sensor 4.2, a third water level sensor 4.3 and a fourth water level sensor 4.4), an escape device controller (a first escape device controller 7.1 and a second escape device controller 7.2), gas generators (a first gas generator 6.1 and a second gas generator 6.2), a spring actuator 13 and a trunk lock actuator 12.2, wherein connecting wires with the escape device controller, the gas generators and the spring actuator are arranged on the upper portion of a protection plate on a chassis, and the wires are prevented from being damaged when a front collision or a side collision occurs to a vehicle.
The first escape device battery 5.1 and the second escape device battery 5.2 are connected to a first escape device controller 7.1 and a second escape device controller 7.2, respectively.
The first escape device controller 7.1 and the second escape device controller 7.2 are respectively connected with the first gas generator 6.1 and the second gas generator 6.2, and are simultaneously connected with the spring actuator 13 and the trunk lock actuator 12.2.
The first gas generator 6.1 and the second gas generator 6.2 are respectively connected with the first air bag 10.1 and the second air bag 10.22.
As shown in fig. 5 and 6, which are control methods of the automatic escape device for vehicles falling into water according to the present invention, respectively, the control method comprises two modes of being controlled by the electronic control unit 2 and being controlled by the escape device controller.
As shown in fig. 5, the control method in the ecu 2 is based on:
first, whether the manual control button is pressed or not is detected. If pressed, the manual control signal is set to 1, and the electronic control unit 2 sends out an action execution command.
And secondly, if the water level sensor is not pressed down, setting the manual control signal to 0, simultaneously detecting the states of the water level sensors (the first water level sensor 4.1, the second water level sensor 4.2, the third water level sensor 4.3 and the fourth water level sensor 4.4), and if 2 or more than 2 water level sensor signals are set to 1 (after water is detected, setting the signal to 1), sending an action execution command by the electronic control unit 2.
And thirdly, if signals of 2 or more than 2 water level sensors are not detected, the electronic control unit 2 judges the collision signals, and if the collision signals are set to be 1 (collision accidents happen), the electronic control unit 2 sends out an action execution command.
And fourthly, if the collision signal is 0 (no collision accident occurs), returning to the first step and circulating in sequence.
As shown in fig. 6, the control method based on the escape apparatus controllers (first escape apparatus controller 7.1, second escape apparatus controller 7.2) is as follows:
in a first step, the escape apparatus controller receives a signal from the electronic control unit 2 and determines whether there is a communication loss. If the communication is judged to be lost, the escape device controller sends out an action execution command.
And secondly, if the communication is judged to be normal, whether the manual control signal is set to be 1 or not is detected. If the device is set to 1, the controller of the escape device detects whether the action command is executed, if not, the action command is executed, and if so, the first step is returned.
And thirdly, if the manual control signal is not set to be 1, detecting whether the signal of the water level sensor is set to be 1, and if the manual control signal is set to be 1, detecting whether the escape device controller executes the action command. If not, executing the action command, and if executed, returning to the first step.
And fourthly, if the signal of the water level sensor is not set to be 1, detecting whether the collision signal is set to be 1 or not. If the collision signal is set to 1, the controller of the escape device detects whether the action command is executed. If not, executing the action command, and if executed, returning to the first step.
And fifthly, returning to the first step if the collision signal is not set to be 1.
In the control method, the action executing command is to send an unlocking command to the trunk lock actuator 12, send an executing command to the spring actuator 13 to eject the spring, send commands to the first gas generator 6.1 and the second gas generator 6.2 to ignite the gas generating agent and generate a large amount of gas, and rapidly inflate the airbag, so that the coherent operation of unlocking the trunk, ejecting the trunk, expanding the airbag (the first airbag 10.1 and the second airbag 10.2) and opening the protective barriers (the first protective barrier 9.1 and the second protective barrier 9.2) is realized.
In the above control method, the collision signal is an existing signal in the automobile, and satisfies NCAP (New vehicle evaluation system), and therefore can be directly sent out through the electronic control unit 2 without additional design.
In the control method, the judgment of the collision signal is increased, so that the situation that a plurality of water level sensors are damaged when a serious collision accident occurs and the driver and the passenger cannot carry out manual operation when the driver and the passenger are injured or even in a coma is avoided, and the safety of the driver and the passenger is further improved.
The electronic control unit 2 sends the related signals to the escape device controller in real time, and the escape device controller judges the state of the signals at the same time; if abnormal phenomena such as signal loss exist, the automatic escape device is automatically triggered, and the electronic control unit 2 or the vehicle storage battery 3 is prevented from being damaged in an accident.
Under the first accident condition, the vehicle suddenly rushes into/falls into water in the running process, at the moment, the first water level sensor 4.1 and/or the first water level sensor 4.2 positioned at the vehicle head detect the falling water, the electronic control unit 2 sends a signal, the electronic control unit 2 sends an execution action command after receiving the signal, namely sends an unlocking command to the backup box lock actuator 12, sends an execution command to the spring actuator 13 to eject the spring, sends a command to the first gas generator 6.1 and the second gas generator 6.2 to enable the gas generators to ignite gas generating agents to generate a large amount of gas, the gas generating agents are filtered and cooled to enter the air bag, the air bag breaks the liner in a very short time and rapidly expands towards two sides, so that the backup box is unlocked, the backup box is ejected, the first air bag 10.1 and the second air bag 10.2 expand to expand and expand the first protective baffle 9.1 and the second protective baffle 9.2 and the like, the vehicle floats on the water surface, and the driver and passengers directly climb out through the trunk to wait for rescue.
When the vehicle falls into water, if the power supply system is damaged, the electronic control unit 2 is powered off and cannot send a signal to the escape device controller, and the escape device controller sends an execution command signal when detecting a communication fault, so that the vehicle floats on the water surface.
In the second unexpected situation, the vehicle is traveling with a severe crash accident, causing the vehicle to suddenly rush/fall into the water. At this time, there are mainly the following cases: in the first situation, when a vehicle collides with a guardrail or a vehicle from the front side, a power system, a control system and a signal transmission system at the front end of the vehicle are damaged, a collision signal 1 or an electronic control unit 2 cannot send a signal to an escape device controller necessarily exists at the moment, and the escape device controller sends a signal for executing a command to enable the vehicle to float on the water surface; in the second situation, the vehicle has side collision, the worst situation is that the system of the automatic escape device on one side is damaged, the automatic escape device on the other side still acts, and the safety of drivers and passengers is ensured to the maximum extent; in the third situation, when a serious rear-end collision fault occurs to the vehicle, because each automobile has the rear bumper 14, the stress of the automatic escape device positioned inside the trunk cover is reduced to a great extent, the automatic escape device adopts a symmetrical structural design, the middle of the internal protective baffle is clamped by a buckle structure, and when the rear-end collision occurs, the airbags and the protective baffles 9 on the two sides can be unfolded towards the two sides respectively so as to ensure the reliability of the automatic escape device.
The invention relates to an automatic escape device for vehicles falling into water and a control method thereof, which are provided with an independent escape storage battery and an escape device controller, and avoid that the escape device cannot be used when the vehicle has an accident by adopting a redundant design of double-path control of a vehicle electronic control unit and the escape device controller; meanwhile, the storage battery and the controller adopt a closed structure, the controller can directly control the trunk lock to be opened, and the trunk can be directly opened when a power supply system is damaged due to the fact that a vehicle is soaked in water, so that the safety of the device is effectively improved; in the aspect of installation position, the distribution characteristics of the weight of the automobile are fully considered, the device is installed in the trunk cover, and the requirement on the size of the air bag of the escape device is reduced by means of buoyancy of the automobile body; in the aspect of control logic, the uncertainty of each system in the falling water/collision process is fully considered, a double-controller (an electronic control unit and an escape device controller) control mode is adopted, the communication characteristic and the collision logic of the electronic control unit are fully utilized for control, and the reliability, the stability and the like of the escape device are greatly improved.
Compared with the prior art, the automatic escape device for vehicles falling into water and the control method thereof have the beneficial effects that: the overall design of the invention is based on the weight distribution condition and the structural characteristics of the automobile, the buoyancy of the automobile body is fully utilized, and the requirements of the air bag/floating equipment are effectively reduced; in the aspect of circuit control, a double-circuit control scheme of a vehicle electronic controller and an escape device controller is adopted, and meanwhile, the controller adopts a full-sealed design, so that the control system is effectively prevented from being out of work after the vehicle falls into water; in the design aspect of the escape device, the storage battery, the gas generator, the air bag and the like adopt a bilateral symmetry dual design mode, so that the operation of a single set of system can be ensured when side collision occurs, and when front and tail collision occurs, the air bag can push the protection plate open to avoid damage without worrying about the influence on the height of a vehicle chassis and the damage caused by vehicle bump/accident; compared with other schemes, the invention mainly considers the condition of the vehicle when the vehicle has an accident, adopts a redundant design, but the quantity and the volume of the air bag/floating equipment are greatly reduced, the cost is lower, only a small amount of space on the trunk cover is occupied, and the vehicle change amount is less; meanwhile, the communication characteristics among the controllers and the collision judgment logic of the automobile controller are utilized, so that the reliability and the stability of the escape device are improved. When/before the vehicle falls into water, the trunk cover is opened under the control of the controller or the vehicle body electronic controller, and the gas generator is inflated to expand the airbag in a short time, so that the vehicle is prevented from sinking, and personnel on the vehicle can save oneself conveniently.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. An automatic escape device for vehicles falling into water is characterized in that: the automatic escape device for vehicles falling into water comprises a water level sensor, an escape device storage battery, a gas generator, an escape device controller and an air bag which are installed on a vehicle body (1) of the vehicles, wherein the water level sensor is connected to an electronic control unit (2) of the vehicles through signals, the escape device storage battery is electrically connected to the vehicle storage battery (3), the escape device controller reaches the gas generator, the escape device controller is connected to the gas generator through signals, the gas generator is connected with the air bag, and the connection point of the escape device storage battery and the vehicle storage battery (3) is located inside a trunk supporting rod.
2. The automatic escape device for vehicles falling into water as claimed in claim 1, wherein: the water level sensor comprises a front water level sensor and a rear water level sensor, the front water level sensor is installed in front of a front wheel fender of the vehicle, and the rear water level sensor is installed behind a rear wheel fender of the vehicle.
3. The automatic escape device for vehicles falling into water as claimed in claim 1, wherein: the escape device storage battery is arranged inside the trunk supporting rod, the anode of the escape device storage battery is provided with a charging diode, and the anode and the cathode of the escape device storage battery are respectively connected with the anode and the cathode of the vehicle storage battery (3).
4. The automatic escape device for vehicles falling into water as claimed in claim 1, wherein: the escape device controller is arranged in the trunk supporting rod close to the escape device storage battery.
5. The automatic escape device for vehicles falling into water as claimed in claim 1, wherein: the gas generator reaches the gasbag is installed inside trunk lid (11), the fixed limit of gasbag is fixed, the gasbag body of gasbag inlays at trunk lid (11) inboard.
6. The automatic escape device for vehicles falling into water as claimed in claim 1, wherein: the automatic escape device for the vehicle falling into the water further comprises a spring actuator (13) for ejecting the lock pin of the trunk lock, and the spring actuator (13) is installed on the lower portion of the decorative plate of the trunk and is parallel to the lock pin of the trunk lock.
7. The automatic escape device for vehicles falling into water as claimed in claim 1, wherein: the automatic escape device for vehicles falling into water further comprises a protective baffle which is close to the air bag and the gas generator and is embedded on a trunk cover (12) close to the side edge of the trunk supporting rod.
8. The automatic escape device for vehicle falling into water according to any one of claims 1 to 7, wherein: the water level sensor, the escape device storage battery, the gas generator, the escape device controller and the airbag are symmetrically arranged in pairs left and right by taking the central axis of the vehicle as a symmetry axis.
9. A control method of the automatic escape device for vehicles falling into water according to claim 1, comprising the steps of:
the electronic control unit (2) detects whether the manual control mode is adopted, if so, the electronic control unit (2) sends out an action execution command;
if the detection is not in the manual control mode, whether the water level sensor detects water or not is judged, and if the water level sensor detects water, the electronic control unit (2) sends an action execution command;
if the water level sensor does not detect water, the electronic control unit (2) judges a collision signal, and if the collision signal is detected, the electronic control unit (2) sends an action execution command;
if the collision signal is not detected, returning to the step that the electronic control unit (2) detects whether the collision signal is in the manual control mode;
the executing the action command includes commanding the gas generator to generate gas to inflate the airbag.
10. The method for controlling an automatic escape device when a vehicle falls into water according to claim 9, further comprising the steps of:
the escape device controller judges whether the communication with the electronic control unit (2) is normal or not, and if the communication is judged to be abnormal, the escape device controller sends an action execution command;
if the communication is judged to be normal, whether the communication is in a manual control mode is detected, if so, the escape device controller detects whether the action command is executed, if not, the action command is executed, if so, the escape device controller returns to the step of judging whether the communication with the electronic control unit (2) is normal;
if the water level sensor signal is judged not to be in the manual control mode, judging whether the water level sensor signal detects water, if so, detecting whether the action command is executed by the escape device controller, if not, executing the action command, and if so, returning to the escape device controller to judge whether the communication with the electronic control unit (2) is normal;
if the water level sensor does not detect water, judging whether a collision signal is detected, if so, detecting whether an action command is executed by the escape device controller, if not, executing the action command, and if so, returning to the escape device controller to judge whether the communication with the electronic control unit (2) is normal;
if the collision signal is not detected, returning to the step that the escape device controller judges whether the communication with the electronic control unit (2) is normal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911413450.2A CN110979233A (en) | 2019-12-31 | 2019-12-31 | Automatic escape device for vehicle falling into water and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911413450.2A CN110979233A (en) | 2019-12-31 | 2019-12-31 | Automatic escape device for vehicle falling into water and control method thereof |
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| CN110979233A true CN110979233A (en) | 2020-04-10 |
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| CN201911413450.2A Pending CN110979233A (en) | 2019-12-31 | 2019-12-31 | Automatic escape device for vehicle falling into water and control method thereof |
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