Water falling protection and personnel escape system and method for oil-electric hybrid electric vehicle

Abstract

The invention discloses a water-falling protection and personnel escape system and method for an oil-electric hybrid electric vehicle, and relates to the technical field of vehicle safety. The water-falling protection and personnel escape system comprises a plurality of sensors which are arranged inside and outside the vehicle respectively and connected with a vehicle control unit; the vehicle control unit is used for sending signals to the air suspension unit, the braking unit and the power driving unit; the control unit is connected with all the sensors; the floating air bag is arranged outside the automobile and can send a starting signal to the floating air bag; the air bag life buoy is arranged at the top of the automobile and can send a starting signal to the floating air bag; the skyscreen breaking unit is arranged in the circumferential direction of the skyscreen of the automobile and can send a starting signal to the skyscreen breaking unit; the vehicle bottom expansion air bag is arranged between the bottom of the vehicle and the battery and the fuel tank and can send a starting signal to the vehicle bottom expansion air bag; according to the sleeving system and the escape method, the problems of automobile property loss and casualties possibly caused after the automobile wades into water and falls into water can be solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of automobile safety, and more specifically, relates to a water fall protection and personnel escape system and an escape method for an oil-electric hybrid electric vehicle. Background Art

[0002] The wading depth of a car can generally reach 300-400mm. Whether it is driving through water, parking in water or even falling into deep water, it is possible to cause damage to the engine and some non-waterproof parts outside the car. When water enters the car's passenger compartment, it will cause damage to the car's interior and turn it into a water-soaked car, and even the people in the car may suffocate to death because they cannot escape.

[0003] Since there are many scenarios where cars wade through water and the situations are very complex and varied, hybrid electric vehicles are relatively heavier, have more parts, and have higher repair costs after damage. Therefore, it is extremely difficult and very important to reduce the number of car parts involved in water, reduce the possibility of part damage, and protect the lives of people in the car when wading through water. However, there is currently no full-system structural solution and system control method designed specifically for hybrid electric vehicles on the market to deal with all scenarios of wading through shallow water, deep water and falling into water. Summary of the invention

[0004] The purpose of the present invention is to address the deficiencies in the prior art and to provide a hybrid electric vehicle water fall protection and personnel escape system and escape method. The escape system allows owners of complex hybrid electric vehicles to easily cope with water-related scenarios and can ensure the safe escape of people in the vehicle when encountering floods or even water-falling emergencies.

[0005] In order to achieve the above object, the present invention provides a water fall protection and personnel escape system for a hybrid electric vehicle, comprising:

[0006] A plurality of sensors are respectively arranged inside and outside the automobile, and all the sensors are connected to the vehicle controller signal, and the vehicle controller is used to send control signals to the air suspension unit, the brake unit and the power drive unit;

[0007] A control unit connected to all of the sensor signals;

[0008] A floating airbag is arranged outside the automobile, and when the automobile falls into water, the control unit sends a start signal to the floating airbag;

[0009] An airbag life buoy is arranged on the top of the car, and when the car falls into the water in the reverse direction, the control unit sends a start signal to the floating airbag;

[0010] A skylight breaking unit is arranged on the circumference of the skylight of the vehicle, and when a person in the vehicle is in danger, the control unit sends a start signal to the skylight breaking unit;

[0011] The underbody inflatable airbag is arranged between the bottom of the vehicle and the battery and the fuel tank. When the vehicle sinks faster than a set speed, the control unit sends a start signal to the underbody inflatable airbag.

[0012] The cabin expansion airbag is arranged between the front subframe and the engine of the automobile. When the automobile is in a flipping posture after falling into the water, the control unit sends a start signal to the cabin expansion airbag.

[0013] Optionally, the sensor comprises:

[0014] External water pressure sensors are respectively arranged at four corners of the outer periphery of the vehicle;

[0015] Vehicle height sensors are respectively arranged on the four wheels of the vehicle;

[0016] Sonar sensors are respectively arranged on two exterior rearview mirrors of the vehicle;

[0017] In-car water pressure sensors are respectively arranged on the carpet, steering wheel and ceiling of the car;

[0018] The oxygen sensor is arranged on the roof of the automobile.

[0019] Optionally, the control unit is arranged on the roof of the car, four skylight breaking units are evenly arranged in the circumference of the skylight of the car, the control unit is powered by solar panels, and the solar panels are arranged on the rear windshield of the car.

[0020] Optionally, three of the floating airbags are respectively arranged at four corners of the outer periphery of the car, two of the floating airbags are arranged on the side of the car, and another one of the floating airbags is arranged at the bottom of the car.

[0021] Optionally, the airbag lifebuoy is arranged at the front end of the canopy of the car, and when the canopy of the car is broken by the canopy breaking unit, the canopy fragments are connected to the canopy breaking unit.

[0022] Optionally, the fuel tank of the automobile is connected to the bottom of the automobile via a fuel tank strap, one end of the fuel tank strap cooperates with the installation point of the battery of the automobile, and the explosion guide structure of the fuel tank strap is arranged corresponding to the underbody expansion airbag.

[0023] Optionally, the air suspension unit includes an air spring arranged on the wheel, and the air spring is controllably connected to the vehicle controller via an air pump.

[0024] The present invention also provides a method for protecting a hybrid electric vehicle from falling into water and for escaping a person. The method comprises:

[0025] The sensor detects the wading depth of the vehicle in real time and transmits the detection data to the vehicle controller in real time;

[0026] When the wading depth is between h1 and h2, the vehicle controller sends a signal to reduce the output torque to the drive unit, sends a start signal to the brake unit, and sends a signal to raise the vehicle body posture to the air suspension unit;

[0027] When the wading depth is between h2 and h3, the vehicle controller shuts down the engine of the vehicle;

[0028] When the wading depth is greater than h3, the vehicle controller sends a start signal to the control unit.

[0029] Optionally, the escape method also includes:

[0030] When the wading depth is between h3 and h4, the control unit sends a warning signal through the instrument display screen and asks the owner whether to send a start signal to the floating airbag. If the owner disagrees to start the floating airbag, the vehicle controller opens the car window;

[0031] When the wading depth is between h4 and h5, the sensor detects that the water pressure around the car is different, and the control unit sends a start signal to the floating airbag;

[0032] When the wading depth is between h4 and h5, the sensor detects that the car is in the highest leveling posture, and the control unit asks the owner whether to send a start signal to the floating airbag. If the owner disagrees to start the floating airbag, the vehicle controller opens the car window;

[0033] When the wading depth is greater than h5, the sensor detects that there is a certain water pressure on the floor and steering wheel of the car or detects that the oxygen concentration on the top of the car is lower than 18%, and the control unit sends a start signal to the skylight breaking unit.

[0034] Optionally, the escape method also includes:

[0035] When the car falls into the water, the sensor detects that the car is taking in water or sinking at a speed greater than 1 m / min, and the control unit sends a start signal to the floating airbag, the skylight breaking unit, the cabin inflation airbag and the underbody inflation airbag.

[0036] The present invention provides a hybrid electric vehicle water fall protection and personnel escape system and escape method, the beneficial effects of which are:

[0037] 1. The escape system is equipped with 12 floating airbags around the car, so that when the car collides with surrounding objects during the floating process, the floating airbags can play a role of buffering and protection. At the same time, when some airbags are accidentally damaged and leak, the remaining airbags can still provide sufficient buoyancy to minimize the damage caused by wading;

[0038] 2. The escape system is equipped with two airbag lifebuoys on the top of the car. When the car falls into the water in the opposite direction, the car body can be straightened to help people escape;

[0039] 3. The escape system works with the skylight breaking unit and the airbag lifebuoy to break and tear the skylight glass when the car is in deep water to ensure the smooth escape of the occupants;

[0040] 4. The escape system is equipped with a dedicated control unit and solar panels, and the solar panels are placed on the top of the car, away from most water sources in wading scenes to ensure the reliability of the system operation;

[0041] 5. In this escape system, the cabin inflation airbag is activated when the car falls into the water in the opposite direction, allowing the engine to fall at the opening of the cabin cover, avoiding the beam structure under the cabin, and making the beam structure the support structure of the cabin inflation airbag, ejecting the engine from the cabin opening, thereby making the car lighter, making it easier to float the car and turn the car body upright, and ensuring the escape of the people in the car to the greatest extent;

[0042] 6. The escape system has an inflatable airbag at the bottom of the car, which can squeeze the battery and fuel tank system out. When the car falls to the bottom of the water and cannot float, the weight of the whole car is instantly reduced, allowing the whole car to float smoothly like a boat.

[0043] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein like reference numerals generally represent like components throughout the exemplary embodiments of the present invention.

[0045] Figure 1 A control flow chart of a method for water fall protection and personnel escape of a hybrid electric vehicle in a shallow water driving scenario according to an embodiment of the present invention is shown.

[0046] Figure 2A control flow chart of a method for water fall protection and personnel escape of a hybrid electric vehicle according to an embodiment of the present invention in a scenario where the vehicle is parked in a wading area is shown.

[0047] Figure 3 A control flow chart of a method for water fall protection and personnel escape of a hybrid electric vehicle according to an embodiment of the present invention is shown when the wading depth is greater than h3.

[0048] Figure 4 A control flow chart of a method for water fall protection and personnel escape of a hybrid electric vehicle according to an embodiment of the present invention is shown when the wading depth is greater than h4.

[0049] Figure 5 A control flow chart of a method for water fall protection and personnel escape of a hybrid electric vehicle according to an embodiment of the present invention is shown when the wading depth is greater than h5.

[0050] Figure 6 A control flow chart of a method for protecting a hybrid electric vehicle from falling into water and for escaping personnel according to an embodiment of the present invention is shown in the case where the vehicle falls into water.

[0051] Figure 7 A control flow chart of a method for water fall protection and personnel escape of a hybrid electric vehicle according to an embodiment of the present invention is shown in the case where the vehicle falls into water and enters water rapidly.

[0052] Figure 8 A schematic diagram showing the positions of sensors in a water fall protection and personnel escape system for a hybrid electric vehicle according to an embodiment of the present invention is shown.

[0053] Fig. 9 A schematic structural diagram of a water fall protection and personnel escape system for a hybrid electric vehicle arranged on the top of a vehicle according to an embodiment of the present invention is shown.

[0054] Fig.10 A schematic structural diagram of a water fall protection and personnel escape system for a hybrid electric vehicle at the bottom of the vehicle according to an embodiment of the present invention is shown.

[0055] Fig.11 A schematic diagram showing the position of a floating airbag in a water fall protection and personnel escape system for a hybrid electric vehicle according to an embodiment of the present invention.

[0056] Fig.12 Shows Fig.11 Top view of the .

[0057] Fig.13A schematic diagram showing the position of an airbag life buoy in a water fall protection and personnel escape system for a hybrid electric vehicle according to an embodiment of the present invention.

[0058] Fig.14 An enlarged structural diagram of a skylight glass breaker in a water fall protection and personnel escape system for a hybrid electric vehicle according to an embodiment of the present invention is shown.

[0059] Fig.15 A schematic diagram showing the position of a cabin inflation airbag in a water fall protection and personnel escape system for a hybrid electric vehicle according to an embodiment of the present invention.

[0060] Fig.16 A schematic diagram showing the position of an underbody inflatable airbag in a water fall protection and personnel escape system for a hybrid electric vehicle according to an embodiment of the present invention.

[0061] Fig.17 A schematic diagram showing the breaking of a fuel tank strap after an underbody inflatable airbag is inflated in a water fall protection and personnel escape system for a hybrid electric vehicle according to an embodiment of the present invention.

[0062] Fig.18 Shows Fig.17 A partial enlarged view of .

[0063] Fig.19 A schematic structural diagram of a fuel tank strap in a water fall protection and personnel escape system for a hybrid electric vehicle according to an embodiment of the present invention is shown.

[0064] Description of reference numerals:

[0065] 001. Water pressure sensor outside the vehicle; 002. Water pressure sensor inside the vehicle; 003. Oxygen sensor; 004. Sonar sensor; 005. Vehicle height sensor; 006. Solar panel; 007. Special battery; 008. Special battery; 009. Skylight glass breaker; 010. Engine; 011. Fuel tank; 012. Fuel tank strap; 013. Vehicle body; 014. Skylight glass; 015. Floating airbag; 016. Airbag lifebuoy; 017. Cabin inflation airbag; 018. Underbody inflation airbag; 019. Blasting guide structure; 020. Opening structure; 021. Hole. DETAILED DESCRIPTION

[0066] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0067] The present invention provides a water fall protection and personnel escape system for a hybrid electric vehicle, comprising:

[0068] Multiple sensors are respectively arranged inside and outside the car, and all sensors are connected to the vehicle controller signal, and the vehicle controller is used to send control signals to the air suspension unit, the brake unit and the power drive unit;

[0069] Control unit, connected with all sensor signals;

[0070] The floating airbag is installed outside the car. When the car falls into the water, the control unit sends a start signal to the floating airbag;

[0071] The airbag lifebuoy is installed on the top of the car. When the car falls into the water in the opposite direction, the control unit sends a start signal to the floating airbag;

[0072] A skylight breaking unit is arranged on the circumference of the skylight of the car. When the occupants are in danger, the control unit sends a start signal to the skylight breaking unit;

[0073] The underbody inflatable airbag is arranged between the underbody of the car and the battery and the fuel tank. When the car sinks faster than the set speed, the control unit sends a start signal to the underbody inflatable airbag.

[0074] The cabin expansion airbag is arranged between the front subframe and the engine of the car. When the car is in a flipping posture after falling into the water, the control unit sends a start signal to the cabin expansion airbag.

[0075] Specifically, the escape system controls the power drive unit, brake unit, and air suspension unit through the vehicle controller ECU to ensure that the car passes through shallow water at a lower speed and the highest posture, reducing the possibility of damage to the external parts of the car due to wading, and reducing the safety hazards caused by the car's excessive speed, greatly reducing the maintenance cost caused by the car wading, and improving safety. If the wading depth increases, the floating airbag on the outside of the car is activated by the dedicated control unit of this system to float the vehicle, prevent the external water from soaking the high-place vehicle parts, and prevent the external water from entering the car to soak the interior and passengers; in more urgent deep water and falling water conditions, when the passengers in the car need to abandon the car to escape, the airbag lifebuoy on the front of the roof can be activated, the inflatable airbag on the bottom of the car can be inflated to squeeze out the battery box and fuel tank system, and the cabin inflatable airbag can be squeezed out of the powertrain, so that the car can reduce weight and float quickly in the most dangerous situation, and the skylight breaking unit can be activated according to the situation, so that the people in the car can escape from the roof. The escape system covers different extreme water-falling situations and, combined with the user's actual usage scenarios, can form a variety of escape methods to ensure the safety of vehicles and personal property.

[0076] Optionally, the sensor includes:

[0077] The external water pressure sensors are respectively arranged at the four corners of the outer periphery of the vehicle;

[0078] Vehicle height sensors are respectively arranged on the four wheels of the vehicle;

[0079] Sonar sensors are installed on the two exterior mirrors of the car;

[0080] In-car water pressure sensors are installed on the car's carpet, steering wheel and ceiling;

[0081] Oxygen sensor, installed on the roof of the car.

[0082] Specifically, external water pressure sensors are installed at the four corners of the car, vehicle height sensors are installed above the four wheels, sonar sensors are installed at the two external rearview mirrors, an internal water pressure sensor is installed on the floor, steering wheel and top of the car respectively, and finally there is an oxygen sensor on the top of the car.

[0083] Optionally, the control unit is arranged on the roof of the car, and four skylight breaking units are evenly arranged around the skylight of the car. The control unit is powered by solar panels, and the solar panels are arranged on the rear windshield of the car.

[0084] Specifically, a solar panel is installed on the rear glass, so that it can generate electricity when there is sufficient sunlight. A dedicated power supply is used to store the electrical energy, and then power the control unit. The dedicated power supply and control unit are arranged inside the roof to prevent the normal operation of the escape system from being affected after the car wades through water.

[0085] Optionally, three floating airbags are respectively arranged at the four corners of the outer periphery of the car, two floating airbags are arranged at the side of the car, and another floating airbag is arranged at the bottom of the car.

[0086] Specifically, a total of 12 airbags are arranged at the four corners of the car, which can provide good protection when the car drifts with the water flow and collides with surrounding objects; in addition, the buoyancy provided by these 12 airbags can ensure that the car floats on the water, prevent water outside the car from entering the car, and prevent the interior parts, items and people inside the car from being soaked in water; the number of these 12 airbags can also ensure that sufficient buoyancy can still be provided when individual airbags are accidentally damaged or leak.

[0087] Optionally, the airbag lifebuoy is arranged at the front end of the canopy of the car, and when the canopy of the car is broken by the canopy breaking unit, the canopy fragments are connected to the canopy breaking unit.

[0088] Specifically, the airbag lifebuoy is arranged at the front end of the roof skylight glass. After the car falls into the water in the opposite direction, the car can be righted by opening the airbag lifebuoy with the help of buoyancy. When the car is at the bottom of the water and does not float up, the skylight breaking unit can shatter the glass. After that, the airbag lifebuoy is connected to the corner of the glass, and the buoyancy can be used to peel the broken glass off the car, making it easier for people to escape through the skylight and wait for rescue on the water surface through the lifebuoy.

[0089] There are two advantages to placing the airbag lifebuoy on the front side of the roof: first, the airbag lifebuoy is closer to the driver, which is more conducive to the driver's escape; second, because the engine is in the cabin, it is more likely that the front of the car will face downward when falling into the water, which is more conducive to the airbag lifebuoy to tear open the shattered skylight glass.

[0090] Optionally, the fuel tank of the car is connected to the bottom of the car through a fuel tank strap, one end of the fuel tank strap cooperates with the installation point of the battery of the car, and the explosion guide structure of the fuel tank strap is arranged corresponding to the inflatable airbag under the car.

[0091] Specifically, an underbody inflatable airbag is arranged at the bottom of the car, and the underbody inflatable airbag and the battery tank strap are arranged relative to each other, so that the underbody inflatable airbag fits the explosion guide structure of the tank strap. When the underbody inflatable airbag is opened, the tank strap can be squeezed to separate the tank strap at the tank mounting bolt and the tank strap at the opening structure; at the same time, the hole of the tank strap pulls the battery mounting bolt to separate the tank strap at the opening of the battery mounting structure. The strap pulls the tank strap under the pressure of the collision airbag, so that the battery and the tank are separated from the vehicle body.

[0092] In one embodiment, a cabin expansion airbag is arranged in the front cabin of the car, and the cabin expansion airbag is also connected to the crossbeam below the front cabin powertrain. When the vehicle is in a flipped position after falling into the water, the cabin expansion airbag expands and squeezes the powertrain. The powertrain is suspended under the combined force of the vehicle's own gravity and the cabin expansion airbag and is damaged and broken. The engine is reversed and separated from the vehicle body, reducing the weight of the vehicle. At the same time, the airbag can provide buoyancy.

[0093] Optionally, the air suspension unit includes an air spring arranged on the wheel, and the air spring is controllably connected to the vehicle controller via an air pump.

[0094] Example

[0095] First, the wading depth is explained: h is the wading depth; h1 is the safe wading depth, the recommended value is 300mm; h2 is the engine allowed wading depth, the recommended value is 400mm; h3 is the wading depth where the car may enter the water, the recommended value is 600mm; h4 is the height of the lower edge of the car window, the recommended value is 1000mm; h5 is the height of the upper edge of the car window, the recommended value is 1400mm. The above wading depth recommended values ​​can be adjusted according to the actual vehicle model calibration.

[0096] like Figure 1 As shown, the present invention provides a hybrid electric vehicle water fall protection and personnel escape system. When driving in shallow water, the left and right sonar sensors outside the vehicle detect the wading depth in real time, and transmit the detection data to the vehicle controller in real time. When the wading depth on either side of the vehicle reaches h1 but does not reach h2, the vehicle controller sends signals to the drive unit, the brake unit, and the air suspension unit to respectively send commands to reduce the output torque, enable ABS braking deceleration, and raise the vehicle body posture to the highest posture. The vehicle passes through the wading area at a lower speed and the highest body posture, ensuring driving safety. At the same time, the number of wading parts outside the vehicle is reduced, the failure rate is reduced, and the maintenance cost is reduced.

[0097] like Figure 2 As shown, the present invention provides a hybrid electric vehicle water fall protection and personnel escape system. During normal parking and wading, the driver is in the vehicle and the water level gradually rises, for example, when the vehicle is stuck under an overpass on a rainy day, the external water pressure sensors at the four corners of the vehicle detect the wading pressure in real time, and the air suspension unit detects the vehicle posture in real time. The detection data is transmitted to the vehicle controller in real time. After receiving the detection data, the vehicle controller determines whether the vehicle posture is horizontal. If it is not horizontal, it issues instructions to the four air springs in the air suspension unit to inflate and deflate, and level the vehicle posture to a horizontal level. At the same time, the sonar sensors at the left and right rearview mirrors outside the vehicle detect the wading depth. The vehicle controller performs real-time detection and transmits the detection data to the vehicle controller in real time. When the sonar sensor detects that the wading depth on at least one side reaches h1, the vehicle controller sends a signal command to the air suspension unit to execute the command to raise the vehicle body posture to the highest horizontal posture; when the sonar sensors at the left and right rearview mirrors detect that the wading depth on at least one side reaches h2, the engine is shut down to prevent water from entering the engine and causing damage to the engine; when the sonar sensors at the left and right rearview mirrors detect that the wading depth on at least one side reaches h3, the control unit is started to control the floating airbag, airbag lifebuoy, skylight breaking unit, underbody inflation airbag and cabin inflation airbag. The control method of the control unit is the same as that of the vehicle control unit. Figure 3 The content shown is the same.

[0098] like Figure 3As shown, the present invention provides a hybrid electric vehicle water protection and personnel escape system. When the vehicle is in deep water, it is a flood situation. When the vehicle has been adjusted to the highest horizontal posture, the left and right sonar sensors detect that the wading depth h exceeds h3, then the control unit dedicated to flood emergency is activated, and the instrument displays the wading situation and the warning that the vehicle body wading may cause property damage, and asks whether to turn on the airbag floating mode, and notes the floating precautions; the driver can choose "yes" or "no" at the instrument. If "yes" is selected, the signal is transmitted to the control unit, and the control unit sends a command to the floating airbag to inflate; if the driver selects "no", after receiving the command, the vehicle controller sends a signal to the window system to open the window for the owner, prompting that the owner can escape from the window in an emergency; but the owner can still control the opening and closing of the window. After the water level continues to rise and the high voltage power is cut off, the window cannot be controlled to open and close.

[0099] like Figure 4 As shown, the present invention provides a water protection and personnel escape system for a hybrid electric vehicle. When the wading depth of the vehicle is h>h4, the four external water pressure sensors at the four corners of the vehicle detect different water pressures, and the posture of the whole vehicle is not horizontal. At this time, the whole vehicle may have been subjected to a large buoyancy, and the body of the vehicle is slightly drifting. It is necessary to quickly inflate the floating airbag. After the floating airbag is filled, it can protect the vehicle from being damaged when it collides with surrounding objects around the vehicle. At this time, the control unit sends a command and inflates the floating airbag, and the instrument displays a warning. If the whole vehicle is still in the highest leveling posture and the floating airbags around are not opened, the wading situation is understood through the instrument and asked whether to open the floating airbag. If the owner chooses "yes", the system is turned on; if the owner chooses "no", the window is opened and the relevant escape situation is displayed through the instrument. At this time, the owner cannot close the window, and the window can only be closed by opening the floating airbags around. If the high voltage electricity is cut off, the floating airbag is inflated.

[0100] like Figure 5 As shown, the present invention provides a hybrid electric vehicle water fall protection and personnel escape system. When the wading depth of the vehicle exceeds h>h5, the water pressure sensors at the floor and the steering wheel in the vehicle simultaneously detect a certain water pressure, indicating that the wading depth in the vehicle has reached the steering wheel position, and the personnel in the vehicle are in danger. The control unit sends a command to the skylight smashing unit, and the skylight smashing unit powered by a dedicated power supply is started to smash the skylight; or when the oxygen concentration sensor on the top of the vehicle detects that the oxygen concentration in the vehicle is too low (lower than 18%, according to the oxygen concentration standard of anoxic environment, breathing difficulties, dizziness and decreased thinking ability will occur when it is lower than 18%), affecting life safety, the control unit sends a command to the skylight smashing unit, and the skylight smashing system powered by a dedicated power supply is started to smash the skylight. The personnel in the vehicle can escape from the skylight.

[0101] The present invention provides a water protection and personnel escape system for a hybrid electric vehicle. When the vehicle is parked on a flooded road, the driver is not in the vehicle, and the water level gradually rises, such as in an environment where the water level in a parking lot rises during heavy rain, the vehicle also uses a control unit to receive instructions from the sensor, and then transmits the wading information, and controls the floating airbag, airbag lifebuoy, skylight breaking unit, underbody inflatable airbag and cabin inflatable airbag, which are the same as the driver's escape method in the vehicle. There are only three differences in the escape method: 1. When the high voltage power is off, the control unit automatically controls the vehicle to connect to the high voltage power supply after detecting that the wading depth exceeds h1; 2. Because there is no one in the vehicle, the sunroof is not driven to rise and fall, and the skylight breaking unit is not started; 3. The information sent to the instrument is changed to be sent to the owner's mobile phone system.

[0102] like Figure 6 and Figure 7As shown, the present invention provides a water protection and personnel escape system for a hybrid electric vehicle. When a vehicle falls into deep water, such as a vehicle falling from a bridge into a river, water quickly enters the vehicle after falling into the water. When the vehicle falls into the water, the windows are open. The water pressure sensors inside and outside the vehicle and the left and right sonar sensors transmit the detection data to the control unit. The control unit analyzes the data to determine whether water quickly enters the vehicle body and whether the sinking speed is too fast. If the judgment result is yes, the floating airbag is opened, the cabin expansion airbag squeezes out the powertrain system, and the bottom expansion airbag expands and squeezes out the battery box and fuel tank system, reducing the weight of the vehicle and making the vehicle float; at the same time, the skylight is broken by the skylight breaking unit, and the front airbag lifebuoy on the roof is inflated and started after 0.5s. The passengers in the vehicle can leave the vehicle from the roof and use the lifebuoy airbag to escape. If the judgment result is no, that is, water does not enter the car rapidly, the control unit will determine whether the vehicle is falling into the water head-on. If it is determined that the vehicle is falling into the water head-on, the head-on water falling procedure will be executed, the floating airbag will be turned on, and after the floating airbag is inflated, the control unit will detect whether the vehicle floats up; if the vehicle starts to float up, the control logic of the owner's car being parked in a flooded road condition will be executed; if it is detected that the vehicle does not float up, the cabin inflation airbag will be started to squeeze out the powertrain system, and the bottom inflation airbag will be inflated to squeeze out the battery box and fuel tank system to reduce the weight of the vehicle. If the vehicle starts to float up, the control logic of the owner's car being parked in a flooded road condition will be executed; if the vehicle still does not float up, the skylight shattering unit will be turned on to shatter the skylight, and after 0.5s, the front airbag lifebuoy on the roof will be inflated and started, and the occupants in the car can leave the vehicle from the roof and use the airbag lifebuoy to escape. When the control unit determines that the vehicle is not falling into the water head-on, it will first activate the airbag lifebuoy on the roof, and use the buoyancy of the airbag lifebuoy on the roof to generate a deflection torque to straighten the vehicle. The vehicle's posture will be monitored in real time through sensors. If the vehicle is straightened within 5 seconds, the vehicle's forward falling into the water control program will be executed, and the airbag floating system will be activated; if the vehicle is not straightened within 5 seconds, the cabin airbag will be activated to squeeze the powertrain system, reduce the weight of the front of the vehicle, and continue to monitor the vehicle's posture. If the vehicle is straightened within 5 seconds, the vehicle's forward falling into the water control program will be executed, and the floating airbag will be inflated; if the vehicle is still not straightened within 5 seconds, the underbody expansion airbag will be activated to inflate and squeeze the battery box and fuel tank system, continue to reduce the weight of the vehicle, and inflate the floating airbag after 1 second, and the sunroof shattering unit and the front airbag lifebuoy on the roof will be opened and inflated after 1.5 seconds. The occupants in the vehicle will leave the vehicle from the roof and use the airbag lifebuoy to escape.

[0103] like Figure 8 and Fig.19 As shown, the present invention provides a hybrid electric vehicle water fall protection and personnel escape system, wherein there are external water pressure sensors 001 on the four corners of the vehicle, a vehicle height sensor 005 is provided above the four wheels and next to the suspension air spring, two external rearview mirrors are provided with sonar sensors 004, an internal water pressure sensor 002 is provided at the rear bottom, the steering wheel, and the top of the vehicle, and an oxygen sensor 003 is provided on the top of the vehicle.

[0104] The escape system also includes a solar panel 006 installed on the rear glass, which generates electricity when the sun is sufficient and supplies power to a dedicated battery 007. When the dedicated battery 007 is fully charged, it supplies power to a power battery 008. The control unit integrates a dedicated power supply, which is called a dedicated control unit and power supply assembly, and is arranged inside the roof. The four skylight glass breakers 009 in the car are distributed at the four corners of the skylight glass 014, and the engine 010 is arranged in the front cabin. The power battery 008 and the fuel tank 011 are fixed to the bottom of the car body through the fuel tank strap 012.

[0105] 12 floating airbags 015 are installed at the four corners of the car, which can provide good protection when the car drifts with the water flow and collides with surrounding objects. The buoyancy provided by the 12 floating airbags 015 can ensure that the car floats on the water surface, prevent water from entering the car, and prevent the interior parts, items and people in the car from being soaked in water. The number of 12 floating airbags 015 can also ensure that sufficient buoyancy can be provided when individual floating airbags 015 are accidentally damaged and leak.

[0106] The airbag life buoy 016 is arranged at the front end of the skylight glass 014 on the roof. After the car falls into the water in the opposite direction, the airbag life buoy 016 can be opened to right the car through buoyancy. When the car is at the bottom of the water and does not float up, after the skylight glass 014 is broken by the skylight breaking unit 017, the airbag life buoy 016 is connected to the corner of the glass, and the broken glass can be peeled off from the car through buoyancy, making it easier for people to escape through the skylight and wait for rescue on the water surface through the airbag life buoy 016.

[0107] The underbody inflatable airbag 018 is arranged on the vehicle body floor at the location of the battery tank strap, corresponding to the explosion guide structure 019 of the tank strap 012. When the airbag is opened, it will squeeze the tank strap, causing the tank strap to break at the opening structure 020. At the same time, the hole 021 of the tank strap pulls the battery mounting bolt to disengage at the battery mounting hole, so that the battery also falls off when the connection structure breaks. Under the pressure of the collision airbag, the strap drags the battery through the disconnection point to separate the battery from the vehicle body, so that the tank and battery can be smoothly separated from the vehicle body under the pressure of the airbag.

[0108] The cabin inflation airbag 018 is arranged on the crossbeam below the front cabin power assembly. When the vehicle falls into the water and is in a flipped position, the airbag expands and squeezes the power assembly. The suspension is damaged and broken under the combined force of the power assembly's own gravity and the inflation and squeezing force of the airbag. The engine is reversed and separated from the vehicle body, reducing the weight of the vehicle. At the same time, the airbag can provide buoyancy.

[0109] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A water fall protection and personnel escape system for a hybrid electric vehicle, characterized in that: include: A plurality of sensors are respectively arranged inside and outside the automobile, and all the sensors are connected to the vehicle controller signal, and the vehicle controller is used to send control signals to the air suspension unit, the brake unit and the power drive unit; A control unit connected to all of the sensor signals; A floating airbag is arranged outside the automobile, and when the automobile falls into water, the control unit sends a start signal to the floating airbag; An airbag life buoy is arranged on the top of the car, and when the car falls into the water in the reverse direction, the control unit sends a start signal to the floating airbag; A skylight breaking unit is arranged on the circumference of the skylight of the vehicle, and when a person in the vehicle is in danger, the control unit sends a start signal to the skylight breaking unit; The underbody inflatable airbag is arranged between the bottom of the vehicle and the battery and the fuel tank. When the vehicle sinks faster than a set speed, the control unit sends a start signal to the underbody inflatable airbag. The cabin expansion airbag is arranged between the front subframe and the engine of the automobile. When the automobile is in a flipping posture after falling into the water, the control unit sends a start signal to the cabin expansion airbag.

2. The hybrid electric vehicle water fall protection and personnel escape system according to claim 1, characterized in that: The sensor comprises: External water pressure sensors are respectively arranged at four corners of the outer periphery of the vehicle; Vehicle height sensors are respectively arranged on the four wheels of the vehicle; Sonar sensors are respectively arranged on two exterior rearview mirrors of the vehicle; In-car water pressure sensors are respectively arranged on the carpet, steering wheel and ceiling of the car; The oxygen sensor is arranged on the roof of the automobile.

3. The hybrid electric vehicle water fall protection and personnel escape system according to claim 1, characterized in that: The control unit is arranged on the roof of the car, and four skylight breaking units are evenly arranged in the circumference of the skylight of the car. The control unit is powered by solar panels, and the solar panels are arranged on the rear windshield of the car.

4. The hybrid electric vehicle water fall protection and personnel escape system according to claim 1, characterized in that: The floating airbags are respectively arranged at four corners of the outer periphery of the car, three of them are arranged at the sides of the car, and the other one is arranged at the bottom of the car.

5. The hybrid electric vehicle water fall protection and personnel escape system according to claim 1, characterized in that: The airbag life buoy is arranged at the front end of the canopy of the car. When the canopy of the car is broken by the canopy breaking unit, the canopy fragments are connected to the canopy breaking unit.

6. The hybrid electric vehicle water fall protection and personnel escape system according to claim 1, characterized in that: The fuel tank of the automobile is connected to the bottom of the automobile through a fuel tank strap, one end of the fuel tank strap matches with the installation point of the battery of the automobile, and the explosion guide structure of the fuel tank strap is arranged correspondingly to the underbody expansion airbag.

7. The hybrid electric vehicle water fall protection and personnel escape system according to claim 1, characterized in that: The air suspension unit comprises an air spring arranged on a wheel, and the air spring is controllably connected to the vehicle controller via an air pump.

8. A method for protecting a hybrid electric vehicle from falling into water and for escaping personnel, using the hybrid electric vehicle from falling into water protection and for escaping personnel according to any one of claims 1 to 7, characterized in that: Escape methods include: The sensor detects the wading depth of the vehicle in real time and transmits the detection data to the vehicle controller in real time; When the wading depth is between h1 and h2, the vehicle controller sends a signal to reduce the output torque to the drive unit, sends a start signal to the brake unit, and sends a signal to raise the vehicle body posture to the air suspension unit; When the wading depth is between h2 and h3, the vehicle controller shuts down the engine of the vehicle; When the wading depth is greater than h3, the vehicle controller sends a start signal to the control unit.

9. The method for protecting a hybrid electric vehicle from falling into water and for escaping personnel according to claim 8, characterized in that: Escape methods also include: When the wading depth is between h3 and h4, the control unit sends a warning signal through the instrument display screen and asks the owner whether to send a start signal to the floating airbag. If the owner disagrees to start the floating airbag, the vehicle controller opens the car window; When the wading depth is between h4 and h5, the sensor detects that the water pressure around the car is different, and the control unit sends a start signal to the floating airbag; When the wading depth is between h4 and h5, the sensor detects that the car is in the highest leveling posture, and the control unit asks the owner whether to send a start signal to the floating airbag. If the owner disagrees to start the floating airbag, the vehicle controller opens the car window; When the wading depth is greater than h5, the sensor detects that there is a certain water pressure on the floor and steering wheel of the car or detects that the oxygen concentration on the top of the car is lower than 18%, and the control unit sends a start signal to the skylight breaking unit.

10. The method for protecting a hybrid electric vehicle from falling into water and for escaping personnel according to claim 8, characterized in that: Escape methods also include: When the car falls into the water, the sensor detects that the car is taking in water or sinking at a speed greater than 1 m / min, and the control unit sends a start signal to the floating airbag, the skylight breaking unit, the cabin inflation airbag and the underbody inflation airbag.

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