Automobile side collision safety protection system and method under control of computer

Abstract

The invention relates to the technical field of automobile side collision safety protection, and discloses an automobile side collision safety protection system and method under computer control, and the system comprises a vehicle data acquisition module, an automobile data analysis module, a fault early warning module and a safety protection module, the vehicle data acquisition module comprises a front door pressure data acquisition unit and a floor acceleration acquisition unit, the front door pressure data acquisition unit is used for acquiring a vehicle front door pressure value, and the floor acceleration acquisition unit is used for acquiring a vehicle real-time floor acceleration. According to the system, air pressure signals of side-collision left and right front doors and side-collision floor acceleration signals are collected and transmitted to the ACU, so that side-collision working condition collision is accurately controlled, the situation that side face air bags are mistakenly triggered when a single-side-collision acceleration signal collection mode encounters a road pit or a door is suddenly closed after sales is reduced, and the situation that after sales, vehicle doors and B columns are prone to being deformed and invaded is reduced. And the side air bag and the side air curtain are not timely unfolded to cause clamping stagnation, so that the normal protection function of the side air bag is influenced.

Description

Technical Field

[0001] The invention relates to the technical field of automobile side collision safety protection, and in particular to a computer-controlled automobile side collision safety protection system and method. Background Art

[0002] As people's living standards continue to improve, cars are becoming more and more popular in our daily lives. The collision safety performance of the whole vehicle, as one of the most important performances of a car, is closely related to the safety of life and property of the driver and passengers, and is the primary performance that car manufacturers and users pay attention to. According to the current development of side and side column collisions by various OEMs, only external acceleration airbag sensors are used to collect side collision signals. After receiving the sensor acceleration signal, the airbag controller analyzes and processes the output airbag detonation. Since the side impact point is too close to the occupant, the side airbag is required to be deployed quickly and in a timely manner. The rationality of the side collision ignition timing is particularly important, which brings huge difficulties to the side collision design of automobile manufacturers; Currently, major OEMs attach great importance to vehicle performance and continuously invest huge human and financial resources to improve the overall performance of the vehicle. However, for side collision and side pillar collision design, only external acceleration airbag sensors are used to collect side collision signals. This signal collection method with only side acceleration sensors is too simple, and it is easy to trigger the deployment of side airbags by mistake when encountering potholes or slamming doors. In addition, the acceleration signal requires a force transmission process, which may easily lead to the problem that the door and B-pillar have been deformed and invaded, and there is no space for the side airbags and side air curtains to deploy. Summary of the invention

[0003] 1. Technical issues to be resolved In view of the deficiencies in the prior art, the present invention provides a computer-controlled automobile side collision safety protection system and method, which has the advantages of timely deployment of airbags and solves the above-mentioned technical problems.

[0004] (II) Technical solution To achieve the above object, the present invention provides the following technical solutions: a computer-controlled automobile side collision safety protection system, comprising a vehicle data acquisition module, an automobile data analysis module, a fault warning module and a safety protection module; The vehicle data acquisition module includes a front door pressure data acquisition unit and a floor acceleration acquisition unit. The front door pressure data acquisition unit is used to acquire the pressure value of the vehicle front door through the air pressure airbag sensor. The floor acceleration acquisition unit is used to acquire the real-time floor acceleration of the vehicle through the floor acceleration signal acquisition sensor. The vehicle data acquisition module sends the acquired pressure value of the vehicle front door and the real-time floor acceleration of the vehicle to the vehicle data analysis module respectively. The automobile data analysis module analyzes and calculates the collected pressure value of the vehicle front door and the real-time floor acceleration of the vehicle to obtain a vehicle warning value, and the automobile data analysis module sends the collected vehicle warning value to the safety protection module; The fault warning module includes a fault data acquisition unit, a sensor fault analysis unit and a fault warning unit. The fault data acquisition unit collects fault influence data of the air pressure airbag sensor and the floor acceleration signal acquisition sensor. The sensor fault analysis unit performs fault analysis based on the fault influence data of the air pressure airbag sensor and the floor acceleration signal acquisition sensor, and obtains a fault analysis value of the air pressure airbag sensor and an analysis value of the floor acceleration signal acquisition sensor. The fault warning unit determines whether to execute a fault warning instruction based on the fault analysis value of the air pressure airbag sensor and the analysis value of the floor acceleration signal acquisition sensor. The safety protection module determines whether to execute the safety protection instruction based on the vehicle warning value.

[0005] As a preferred technical solution of the present invention, the specific expression of the pressure value of the vehicle front door collected by the front door pressure data collection unit is as follows:

[0006] in, Represents the pressure dataset of the vehicle front door. express The pressure value on the left front door of the vehicle at the moment, express The pressure value applied to the right front door of the vehicle at the moment.

[0007] As a preferred technical solution of the present invention, the specific expression of the floor acceleration acquisition unit for acquiring the real-time floor acceleration of the vehicle is as follows:

[0008] in, represents the floor acceleration dataset, express The floor acceleration corresponding to the left front door of the vehicle at any given moment, express The moment corresponds to the floor acceleration of the right front door of the vehicle.

[0009] As a preferred technical solution of the present invention, the automobile data analysis module analyzes and calculates the collected pressure value of the vehicle front door and the real-time floor acceleration of the vehicle, and the specific steps of obtaining the vehicle warning value are as follows: Step A1: Based on the pressure value of the front door of the vehicle, that is, the pressure data set of the front door of the vehicle , calculated to The first warning value at the moment ; Step A2: Based on the vehicle's real-time floor acceleration data, i.e., the floor acceleration dataset , calculated to The second warning value at the moment ; Step A3: Based on The first warning value at the moment and The second warning value at the moment Comprehensive calculation Vehicle warning value at the moment.

[0010] As a preferred technical solution of the present invention, the step A1 is calculated to The first warning value at the moment The specific expression is as follows:

[0011] in, Indicates the air pressure threshold, express The first warning value at the moment, express The pressure value on the left front door of the vehicle at the moment, express The pressure value on the right front door of the vehicle at the moment; In step A2, it is calculated The second warning value at the moment The specific expression is as follows:

[0012] in, represents the acceleration threshold, express The floor acceleration corresponding to the left front door of the vehicle at any given moment, express The floor acceleration corresponding to the right front door of the vehicle at that moment, express The second warning value at the moment; In step A3, the calculation The specific expression of the vehicle warning value at the time is as follows:

[0013] in, express Vehicle warning value at the moment, express The first warning value at the moment, express The second warning value at the moment.

[0014] As a preferred technical solution of the present invention, the step of the safety protection module judging whether to execute safety protection measures based on the vehicle warning value is specifically as follows: Vehicle warning value at the moment When the safety protection instruction is executed, Vehicle warning value at the moment When the safety protection instruction is not executed.

[0015] As a preferred technical solution of the present invention, the specific execution steps of the security protection instruction are: The airbag controller of the vehicle side airbag installed on the side of the vehicle determines that the ignition conditions are met, and outputs a continuous current to the vehicle side air curtain and the vehicle side airbag gas generator to control the ignition, inflate the airbag, and control the vehicle oil pump to stop pumping oil, control the output of the four-door unlocking signal, and turn on the left and right turn signals at the same time.

[0016] As a preferred technical solution of the present invention, the fault influencing data includes: the resistance value of the air pressure airbag sensor or the floor acceleration signal acquisition sensor is higher than the safety value, lower than the safety value, short circuit, or open circuit. When any of the above fault influencing data is collected, the output air pressure airbag sensor fault analysis value or the floor acceleration signal acquisition sensor analysis value is 1. If any of the above fault influencing data is not collected, the output air pressure airbag sensor fault analysis value or the floor acceleration signal acquisition sensor analysis value is 0.

[0017] As a preferred technical solution of the present invention, the steps of the fault warning unit judging whether to execute the fault warning instruction based on the air pressure airbag sensor fault analysis value and the floor acceleration signal acquisition sensor analysis value are as follows: When the air pressure airbag sensor fault analysis value or the floor acceleration signal acquisition sensor analysis value is 1, the fault warning instruction is executed, specifically: the fault code is uploaded and the fault light is on; When the air pressure airbag sensor fault analysis value and the floor acceleration signal acquisition sensor analysis value are 0, the fault warning instruction is not executed.

[0018] The present invention also provides a computer-controlled vehicle side collision safety protection method, based on the above-mentioned computer-controlled vehicle side collision safety protection system, comprising the following steps: Step 1: Before the vehicle travels, the fault impact data of the air pressure airbag sensor and the floor acceleration signal acquisition sensor of the pressure value of the front door of the vehicle are collected. If the fault impact data is collected, the air pressure airbag sensor fault analysis value or the floor acceleration signal acquisition sensor analysis value is output as 1, and step 2 is executed. If the fault impact data is not collected, the air pressure airbag sensor fault analysis value or the floor acceleration signal acquisition sensor analysis value is output as 0, and step 3 is executed; Step 2: Execute the fault warning command, upload the fault code and the fault light will turn on; Step 3: During the driving process of the vehicle, the real-time floor acceleration of the vehicle and the pressure value of the front door of the vehicle are collected, and the collected pressure value of the front door of the vehicle and the real-time floor acceleration of the vehicle are analyzed and calculated respectively to obtain the vehicle warning value; Step 4: Determine whether to execute the safety protection instruction based on the vehicle warning value.

[0019] Compared with the prior art, the present invention provides a computer-controlled automobile side collision safety protection system and method, which has the following beneficial effects: 1. The present invention collects the air pressure signals of the left and right front doors and the acceleration signals of the floor in side collisions, transmits the signals to the ACU, accurately controls the collision of side collision conditions, and reduces the possibility of side airbags being mistakenly triggered when encountering potholes or slamming doors in the form of single side collision acceleration signal collection, causing economic losses.

[0020] 2. The present invention can collect collision air pressure change signals earlier and make judgments. The signal collection time is faster than collecting only acceleration signals, which reduces the problem of deformation and invasion of doors and B-pillars, and the delayed deployment of side airbags and side air curtains, which affects the normal protection function of the side airbags. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the system framework of the present invention; Figure 2 It is a schematic diagram of the process of the present invention. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figure 1 - Figure 2, a computer-controlled automobile side collision safety protection system, comprising a vehicle data acquisition module, an automobile data analysis module, a fault warning module and a safety protection module; The vehicle data acquisition module includes a front door pressure data acquisition unit and a floor acceleration acquisition unit. The front door pressure data acquisition unit is used to collect the pressure value of the vehicle front door, which is obtained through the air pressure airbag sensor. The floor acceleration acquisition unit is used to collect the real-time floor acceleration of the vehicle, which is obtained through the floor acceleration signal acquisition sensor. The specific expression of the pressure value of the vehicle front door collected by the front door pressure data acquisition unit is as follows:

[0024] in, Represents the pressure dataset of the vehicle front door. express The pressure value on the left front door of the vehicle at the moment, express The pressure value of the right front door of the vehicle at the moment, the specific expression of the floor acceleration acquisition unit used to collect the real-time floor acceleration of the vehicle is as follows:

[0025] in, represents the floor acceleration dataset, express The floor acceleration corresponding to the left front door of the vehicle at any given moment, express The vehicle data acquisition module sends the collected pressure value of the vehicle front door and the real-time floor acceleration of the vehicle to the vehicle data analysis module respectively, corresponding to the floor acceleration of the right front door of the vehicle at all times; The automobile data analysis module analyzes and calculates the collected pressure value of the vehicle front door and the real-time floor acceleration of the vehicle to obtain the vehicle warning value; The vehicle data analysis module analyzes and calculates the collected pressure value of the vehicle front door and the real-time floor acceleration of the vehicle, and the specific steps for obtaining the vehicle warning value are as follows: Step A1: Based on the pressure value of the front door of the vehicle, that is, the pressure data set of the front door of the vehicle , calculated to The first warning value at the moment , The first warning value at the moment The specific expression is as follows:

[0026] in, Indicates the air pressure threshold, express The first warning value at the moment, express The pressure value on the left front door of the vehicle at the moment, express The pressure value on the right front door of the vehicle at the moment; Step A2: Based on the vehicle's real-time floor acceleration data, i.e., the floor acceleration dataset , calculated to The second warning value at the moment , The second warning value at the moment The specific expression is as follows:

[0027] in, represents the acceleration threshold, express The floor acceleration corresponding to the left front door of the vehicle at any given moment, express The floor acceleration corresponding to the right front door of the vehicle at that moment, express The second warning value at the moment; Step A3: Based on The first warning value at the moment and The second warning value at the moment Comprehensive calculation Vehicle warning value at the moment, The specific expression of the vehicle warning value at the time is as follows:

[0028] in, express Vehicle warning value at the moment, express The first warning value at the moment, express The second warning value at the moment.

[0029] The steps for the safety protection module to determine whether to execute safety protection measures based on the vehicle warning value are as follows: Vehicle warning value at the moment When the safety protection instruction is executed, Vehicle warning value at the moment When the safety protection instruction is not executed, the automobile data analysis module sends the collected vehicle warning value to the safety protection module; The fault warning module includes a fault data acquisition unit, a sensor fault analysis unit and a fault warning unit. The fault data acquisition unit collects fault impact data of the air pressure airbag sensor and the floor acceleration signal acquisition sensor. The sensor fault analysis unit performs fault analysis based on the fault impact data of the air pressure airbag sensor and the floor acceleration signal acquisition sensor, and obtains the air pressure airbag sensor fault analysis value and the floor acceleration signal acquisition sensor analysis value. The fault warning unit determines whether to execute the fault warning instruction based on the air pressure airbag sensor fault analysis value and the floor acceleration signal acquisition sensor analysis value. The fault impact data include: the resistance value of the air pressure airbag sensor or the floor acceleration signal acquisition sensor is higher than the safety value, lower than the safety value, short-circuited, or open-circuited. When any of the above fault impact data is collected, the air pressure airbag sensor fault analysis value or the floor acceleration signal acquisition sensor analysis value is output as 1. If any of the above fault impact data is not collected, the air pressure airbag sensor fault analysis value or the floor acceleration signal acquisition sensor analysis value is output as 0. The steps for the fault warning unit to determine whether to execute the fault warning instruction based on the air pressure airbag sensor fault analysis value and the floor acceleration signal acquisition sensor analysis value are as follows: When the air pressure airbag sensor fault analysis value or the floor acceleration signal acquisition sensor analysis value is 1, the fault warning instruction is executed, specifically: the fault code is uploaded and the fault light is on; When the air pressure airbag sensor fault analysis value and the floor acceleration signal acquisition sensor analysis value are 0, the fault warning instruction is not executed; The safety protection module determines whether to execute the safety protection instruction based on the vehicle warning value, that is, the airbag controller of the vehicle side airbag installed on the side of the vehicle determines that the ignition condition is met, outputs a continuous current to the vehicle side air curtain and the vehicle side airbag gas generator to control the explosion, inflate the airbag, and control the vehicle oil pump to stop pumping oil, control the output of the four-door unlocking signal, and turn on the left and right turn signals at the same time. Specifically: the airbag controller collects the front door air pressure change signal and the floor airbag sensor acceleration signal. When the air pressure signal and the acceleration signal exceed the set collision threshold, the airbag controller determines that the ignition condition is met, and outputs a continuous current of more than 1.2A / 2ms to the side air curtain and the side airbag gas generator to control the explosion, and inflate the airbag. When the airbag controller is not ignited, the airbag controller continuously outputs ( The airbag controller communicates with the body controller (BCM) through a periodic PWM waveform signal (a single cycle is 390ms high level, 10ms low level). When the airbag controller issues an ignition signal command, it also outputs 3-cycle inversion waveform (390ms low level, 10ms high level) PWM waveform signals to the body controller (BCM). The body controller (BCM) controls the output of four-door unlocking signals (door lock motors) and four-door windows (door and window motors) lowering signals, and turns on the left and right turn signals for hazard warning. At the same time, the airbag controller outputs a CAN signal to the engine ECM to control the oil pump to stop pumping oil to avoid the risk of oil leakage and fire. When a collision occurs, the airbag controller will output a collision ignition CAN signal to the MP5. After receiving the signal, the MP5 communicates with the outside world through the T-box and speaker to make an emergency call.

[0030] The specific implementation process of the present invention is as follows: by arranging an air pressure airbag collection sensor on the front door inner panel sheet metal, and arranging a floor acceleration signal collection sensor at the floor position under the seat, when the car has an unexpected risk of side collision, the front door is squeezed instantly, the air in the inner and outer panel cavities of the door is compressed sharply, the air pressure sensor installed at the car door will start working, transmit the air pressure signal to the ACU, and the acceleration sensor at the floor also collects the acceleration signal and transmits the signal to the ACU. After the ACU determines that both the air pressure and acceleration signals meet the conditions, it sends a hard-line high-current signal to the side airbag, triggering the side airbag and the side air curtain to deploy, and implement side protection for the occupants; at the same time, the ACU will send a PWM pulse collision output signal to the body controller, and the body controller hard-line controls the unlocking of the four doors and stimulates the double flash warning lights in the car to prepare for rescue outside the car; the ACU will also output an oil cut-off CAN signal to the engine ECM, and the ECM will output an oil pump stop pumping instruction to prevent the danger of oil leakage and fire; the ACU will also output a collision signal to the MP5, and the MP5 will communicate with the outside world through the T-box car networking system to realize voice telephone communication and call for help. At the same time, the airbag controller has a fault self-detection function for each sensor, airbag module and wiring harness circuit. If there is a fault, the fault light on the instrument will light up, and the airbag controller will record and store the fault code.

[0031] The present invention also provides a computer-controlled vehicle side collision safety protection method, based on the above-mentioned computer-controlled vehicle side collision safety protection system, comprising the following steps: Step 1: Before the vehicle travels, the fault impact data of the air pressure airbag sensor and the floor acceleration signal acquisition sensor of the pressure value of the front door of the vehicle are collected. If the fault impact data is collected, the air pressure airbag sensor fault analysis value or the floor acceleration signal acquisition sensor analysis value is output as 1, and step 2 is executed. If the fault impact data is not collected, the air pressure airbag sensor fault analysis value or the floor acceleration signal acquisition sensor analysis value is output as 0, and step 3 is executed; Step 2: Execute the fault warning command, upload the fault code and the fault light will turn on; Step 3: During the driving process of the vehicle, the real-time floor acceleration of the vehicle and the pressure value of the front door of the vehicle are collected, and the collected pressure value of the front door of the vehicle and the real-time floor acceleration of the vehicle are analyzed and calculated respectively to obtain the vehicle warning value; Step 4: Determine whether to execute the safety protection instruction based on the vehicle warning value.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A computer-controlled automobile side collision safety protection system, characterized in that: It includes vehicle data acquisition module, automobile data analysis module, fault warning module and safety protection module; The vehicle data acquisition module includes a front door pressure data acquisition unit and a floor acceleration acquisition unit. The front door pressure data acquisition unit is used to acquire the pressure value of the vehicle front door through the air pressure airbag sensor. The floor acceleration acquisition unit is used to acquire the real-time floor acceleration of the vehicle through the floor acceleration signal acquisition sensor. The vehicle data acquisition module sends the acquired pressure value of the vehicle front door and the real-time floor acceleration of the vehicle to the vehicle data analysis module respectively. The automobile data analysis module analyzes and calculates the collected pressure value of the vehicle front door and the real-time floor acceleration of the vehicle to obtain a vehicle warning value, and the automobile data analysis module sends the collected vehicle warning value to the safety protection module; The fault warning module includes a fault data acquisition unit, a sensor fault analysis unit and a fault warning unit. The fault data acquisition unit collects fault influence data of the air pressure airbag sensor and the floor acceleration signal acquisition sensor. The sensor fault analysis unit performs fault analysis based on the fault influence data of the air pressure airbag sensor and the floor acceleration signal acquisition sensor, and obtains a fault analysis value of the air pressure airbag sensor and an analysis value of the floor acceleration signal acquisition sensor. The fault warning unit determines whether to execute a fault warning instruction based on the fault analysis value of the air pressure airbag sensor and the analysis value of the floor acceleration signal acquisition sensor. The safety protection module determines whether to execute the safety protection instruction based on the vehicle warning value.

2. A computer-controlled automobile side collision safety protection system according to claim 1, characterized in that: The specific expression of the pressure value of the vehicle front door collected by the front door pressure data collection unit is as follows: in, Represents the pressure dataset of the vehicle front door. express The pressure value on the left front door of the vehicle at the moment, express The pressure value applied to the right front door of the vehicle at the moment.

3. The computer-controlled vehicle side collision safety protection system according to claim 2, characterized in that: The specific expression of the floor acceleration acquisition unit for acquiring the real-time floor acceleration of the vehicle is as follows: in, represents the floor acceleration dataset, express The floor acceleration corresponding to the left front door of the vehicle at any given moment, express The moment corresponds to the floor acceleration of the right front door of the vehicle.

4. A computer-controlled automobile side collision safety protection system according to claim 3, characterized in that: The vehicle data analysis module analyzes and calculates the collected pressure value of the vehicle front door and the real-time floor acceleration of the vehicle, and the specific steps of obtaining the vehicle warning value are as follows: Step A1: Based on the pressure value of the front door of the vehicle, that is, the pressure data set of the front door of the vehicle , calculated to The first warning value at the moment ; Step A2: Based on the vehicle's real-time floor acceleration data, i.e., the floor acceleration dataset , calculated to The second warning value at the moment ; Step A3: Based on The first warning value at the moment and The second warning value at the moment Comprehensive calculation Vehicle warning value at the moment.

5. The computer-controlled automobile side collision safety protection system according to claim 4, characterized in that: In step A1, it is calculated First warning value at the moment The specific expression is as follows: in, Indicates the air pressure threshold, express The first warning value at the moment, express The pressure value on the left front door of the vehicle at the moment, express The pressure value on the right front door of the vehicle at the moment; In step A2, it is calculated The second warning value at the moment The specific expression is as follows: in, represents the acceleration threshold, express The floor acceleration corresponding to the left front door of the vehicle at any given moment, express The floor acceleration corresponding to the right front door of the vehicle at that moment, express The second warning value at the moment; In step A3, the calculation The specific expression of the vehicle warning value at the time is as follows: in, express Vehicle warning value at the moment, express The first warning value at the moment, express The second warning value at the moment.

6. The computer-controlled automobile side collision safety protection system according to claim 5, characterized in that: The step of the safety protection module judging whether to execute safety protection measures based on the vehicle warning value is specifically as follows: Vehicle warning value at the moment When the safety protection instruction is executed, Vehicle warning value at the moment When the safety protection instruction is not executed.

7. The computer-controlled automobile side collision safety protection system according to claim 6, characterized in that: The specific execution steps of the security protection instruction are: The airbag controller of the vehicle side airbag installed on the side of the vehicle determines that the ignition conditions are met, and outputs a continuous current to the vehicle side air curtain and the vehicle side airbag gas generator to control the ignition, inflate the airbag, and control the vehicle oil pump to stop pumping oil, control the output of the four-door unlocking signal, and turn on the left and right turn signals at the same time.

8. The computer-controlled vehicle side collision safety protection system according to claim 1, characterized in that: The fault influencing data include: the resistance value of the air pressure airbag sensor or the floor acceleration signal acquisition sensor is higher than the safety value, lower than the safety value, short-circuited, or open-circuited. When any of the above fault influencing data is collected, the output air pressure airbag sensor fault analysis value or the floor acceleration signal acquisition sensor analysis value is 1. If any of the above fault influencing data is not collected, the output air pressure airbag sensor fault analysis value or the floor acceleration signal acquisition sensor analysis value is 0.

9. The computer-controlled automobile side collision safety protection system according to claim 8, characterized in that: The steps of the fault warning unit judging whether to execute the fault warning instruction based on the air pressure airbag sensor fault analysis value and the floor acceleration signal acquisition sensor analysis value are as follows: When the air pressure airbag sensor fault analysis value or the floor acceleration signal acquisition sensor analysis value is 1, the fault warning instruction is executed, specifically: the fault code is uploaded and the fault light is on; When the air pressure airbag sensor fault analysis value and the floor acceleration signal acquisition sensor analysis value are 0, the fault warning instruction is not executed.

10. A computer-controlled vehicle side collision safety protection method, based on a computer-controlled vehicle side collision safety protection system according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Before the vehicle travels, the fault impact data of the air pressure airbag sensor and the floor acceleration signal acquisition sensor of the pressure value of the front door of the vehicle are collected. If the fault impact data is collected, the air pressure airbag sensor fault analysis value or the floor acceleration signal acquisition sensor analysis value is output as 1, and step 2 is executed. If the fault impact data is not collected, the air pressure airbag sensor fault analysis value or the floor acceleration signal acquisition sensor analysis value is output as 0, and step 3 is executed; Step 2: Execute the fault warning command, upload the fault code and the fault light will turn on; Step 3: During the driving process of the vehicle, the real-time floor acceleration of the vehicle and the pressure value of the front door of the vehicle are collected, and the collected pressure value of the front door of the vehicle and the real-time floor acceleration of the vehicle are analyzed and calculated respectively to obtain the vehicle warning value; Step 4: Determine whether to execute the safety protection instruction based on the vehicle warning value.

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