A computer-controlled vehicle side collision safety protection system and method

Abstract

The present invention relates to the technical field of automotive side impact safety protection, and discloses a computer-controlled automotive side impact safety protection system and method. The system includes a vehicle data acquisition module, an automotive 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 received by the vehicle's front door, and the floor acceleration acquisition unit is used to collect the real-time floor acceleration of the vehicle. The system collects the side impact left and right front door air pressure signals and the side impact floor acceleration signals, transmits the signals to the ACU, accurately controls the side impact condition collision, reduces the accidental triggering of the side airbag after-sales due to hitting a pothole or slamming the door in the form of single-sided impact acceleration signal acquisition, and reduces the problems that the door and B-pillar are easily deformed and invaded after-sales, and the side airbag and side curtain are not deployed in time and jammed, which affects the normal protection function of the side airbag.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive side impact safety protection, and particularly to a computer-controlled automotive side impact safety protection system and method. Background Art

[0002] With the increasing improvement of people's living standards, automobiles are becoming more and more popular in our daily lives. The overall vehicle collision safety performance, as one of the most important performances of automobiles, is closely related to the life and property safety of the driver and passengers, and is the primary performance concerned by automobile manufacturers and users. According to the current development of side and side pillar collisions by each main engine factory, only external acceleration airbag sensors are used to collect side impact signals. After the airbag controller receives the sensor acceleration signal, it analyzes and processes it to output airbag ignition. Since the side impact point is too close to the occupant, it is required that the side airbag be deployed in a timely and rapid manner. The rationality of the side impact ignition timing is particularly important, which brings great difficulties to the side impact design of automobile manufacturers;

[0003] Currently, major main engine factories attach great importance to the overall vehicle performance and continuously invest huge human and financial resources to improve the overall vehicle comprehensive performance. However, for side impact and side pillar collision designs, only external acceleration airbag sensors are used to collect side impact signals. This signal acquisition method with only side acceleration sensors is too single, and it is easy to mis-trigger the deployment of the side airbag in case of road pits or slamming the door; moreover, the acceleration signal requires a force transmission process, and it is easy to have problems such as the door and B-pillar being deformed and intruded, and there is no deployment space for the side airbag and side curtain. Summary of the Invention

[0004] (I) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the present invention provides a computer-controlled automotive side impact safety protection system and method, which have the advantages of timely deployment of airbags and solve the above technical problems.

[0006] (II) Technical Solutions

[0007] To achieve the above object, the present invention provides the following technical solution: A computer-controlled automotive side impact safety protection system includes a vehicle data acquisition module, an automotive data analysis module, a fault warning module, and a safety protection module;

[0008] 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 received by the vehicle front door, which is obtained through an 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 a floor acceleration signal acquisition sensor. The vehicle data acquisition module sends the collected pressure value received by the vehicle front door and the real-time floor acceleration of the vehicle to the automotive data analysis module respectively;

[0009] The vehicle data analysis module analyzes and calculates the pressure value received by the vehicle's front door and the real-time floor acceleration of the vehicle respectively, obtains the vehicle warning value, and the vehicle data analysis module sends the collected vehicle warning value to the safety protection module;

[0010] 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 acquires the 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 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;

[0011] The safety protection module determines whether to execute the safety protection instruction based on the vehicle warning value.

[0012] As a preferred technical solution of the present invention, the specific expression of the front door pressure data acquisition unit for acquiring the pressure value received by the vehicle's front door is as follows:

[0013]

[0014] Among them, represents the pressure data set received by the vehicle's front door, represents the pressure value received by the vehicle's left front door at time represents the pressure value received by the vehicle's right front door at time

[0015] 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:

[0016]

[0017] Among them, represents the floor acceleration data set, represents the floor acceleration corresponding to the vehicle's left front door at time represents the floor acceleration corresponding to the vehicle's right front door at time

[0018] As a preferred technical solution of the present invention, the specific steps for the vehicle data analysis module to analyze and calculate the pressure value received by the vehicle's front door and the real-time floor acceleration of the vehicle to obtain the vehicle warning value are as follows:

[0019] Step A1: Based on the pressure value received by the vehicle's front door, that is, the pressure data set of the vehicle's front door , calculate the first warning value at moment ;

[0020] Step A2: Based on the real-time floor acceleration data of the vehicle, that is, the floor acceleration data set , calculate the second warning value at moment ;

[0021] Step A3: Based on the first warning value at moment and the second warning value at , comprehensively calculate to obtain the vehicle warning value at moment

[0022] As a preferred technical solution of the present invention, the specific expression for calculating the first warning value at moment in Step A1 is as follows:

[0023]

[0024] Wherein, represents the air pressure threshold, represents the first warning value at moment, represents the pressure value received by the left front door of the vehicle at moment, represents the pressure value received by the right front door of the vehicle at

[0025] The specific expression for calculating the second warning value at moment in Step A2 is as follows:

[0026]

[0027] Wherein, represents the acceleration threshold, represents the floor acceleration corresponding to the left front door of the vehicle at moment, represents the floor acceleration corresponding to the right front door of the vehicle at represents The second warning value at a moment;

[0028] The calculation in step A3 The specific expression of the vehicle warning value at a moment is as follows:

[0029]

[0030] Wherein, represents the vehicle warning value at a moment, represents the first warning value at a moment, represents the second warning value at a moment.

[0031] As a preferred technical solution of the present invention, the step of the safety protection module judging whether to execute the safety protection measure based on the vehicle warning value is specifically: when the vehicle warning value at a moment then execute the safety protection instruction, when the vehicle warning value at a moment then do not execute the safety protection instruction.

[0032] As a preferred technical solution of the present invention, the specific execution steps of the safety protection instruction are:

[0033] The airbag controller of the vehicle side airbag installed on the side of the vehicle determines that the ignition condition is reached, outputs a continuous current to the gas generator control points of the vehicle side curtain airbag and the vehicle side airbag to detonate, inflates the airbag, and controls the vehicle fuel pump to stop pumping oil, controls the output of four-door opening and unlocking signals, and simultaneously turns on the left and right turn signals.

[0034] As a preferred technical solution of the present invention, the fault influence 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-circuited, or open-circuited. When any of the above fault influence 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 none of the above fault influence data is collected, the air pressure airbag sensor fault analysis value or the floor acceleration signal acquisition sensor analysis value is output as 0.

[0035] As a preferred technical solution of the present invention, the step 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 is:

[0036] When the air pressure airbag sensor fault analysis value or the floor acceleration signal acquisition sensor analysis value is 1, execute the fault warning instruction, specifically: upload the fault code and the fault light is on;

[0037] When the fault analysis value of the air pressure airbag sensor and the analysis value of the floor acceleration signal acquisition sensor are 0, the fault warning instruction is not executed.

[0038] The present invention also provides a method for protecting the safety of a vehicle side collision under computer control. Based on the above-mentioned system for protecting the safety of a vehicle side collision under computer control, it includes the following steps:

[0039] Step 1: Before the vehicle travels, collect the fault influence data of the air pressure airbag sensor that measures the pressure value on the front doors of the vehicle and the floor acceleration signal acquisition sensor. If the fault influence data is collected, output the fault analysis value of the air pressure airbag sensor or the analysis value of the floor acceleration signal acquisition sensor as 1, and execute Step 2. If the fault influence data is not collected, output the fault analysis value of the air pressure airbag sensor or the analysis value of the floor acceleration signal acquisition sensor as 0, and execute Step 3;

[0040] Step 2: Execute the fault warning instruction, upload the fault code and the fault light turns on;

[0041] Step 3: During the vehicle's travel, collect the real-time floor acceleration of the vehicle and the pressure value on the front doors of the vehicle, and respectively analyze and calculate the collected pressure value on the front doors of the vehicle and the real-time floor acceleration of the vehicle to obtain the vehicle warning value;

[0042] Step 4: Based on the vehicle warning value, determine whether to execute the safety protection instruction.

[0043] Compared with the prior art, the present invention provides a system and method for protecting the safety of a vehicle side collision under computer control, having the following beneficial effects:

[0044] 1. By collecting the air pressure signals of the left and right front doors during side collisions and the floor acceleration signals during side collisions, and transmitting the signals to the ACU, the present invention accurately controls the collision under side collision conditions, reducing the economic losses caused by the accidental triggering of side airbags due to hitting road pits or slamming the door in the after-sales service with the form of collecting single-sided collision acceleration signals.

[0045] 2. By being able to collect the collision air pressure change signal earlier and make a judgment, the signal collection time of the present invention is faster than that of only collecting acceleration signals, reducing the problems of the door and B-pillar being deformed and invaded, and the side airbag and side curtain not deploying in time and getting stuck in the after-sales service, which affects the normal protection function of the side airbag. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 It is a schematic diagram of the system framework of the present invention;

[0047] Figure 2 It is a schematic diagram of the process of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0048] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0049] Please refer to Figure 1 - Figure 2 , a vehicle side impact safety protection system under computer control, including a vehicle data acquisition module, an automotive data analysis module, a fault warning module, and a safety protection module;

[0050] 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 received by the vehicle front door, which is obtained through an air pressure airbag sensor. The floor acceleration acquisition unit is used to acquire the real-time floor acceleration of the vehicle, which is obtained through a floor acceleration signal acquisition sensor. The specific expression for the pressure value received by the vehicle front door acquired by the front door pressure data acquisition unit is as follows:

[0051]

[0052] Among them, represents the pressure data set received by the vehicle front door, represents the pressure value received by the left front door of the vehicle at time represents the pressure value received by the right front door of the vehicle at time. The specific expression for the floor acceleration acquisition unit to acquire the real-time floor acceleration of the vehicle is as follows:

[0053]

[0054] Among them, represents the floor acceleration data set, represents the floor acceleration corresponding to the left front door of the vehicle at time represents the floor acceleration corresponding to the right front door of the vehicle at time. The vehicle data acquisition module sends the pressure value received by the vehicle front door and the real-time floor acceleration of the vehicle collected to the automotive data analysis module respectively;

[0055] The automotive data analysis module analyzes and calculates the pressure value received by the vehicle front door and the real-time floor acceleration of the vehicle collected respectively, obtains the vehicle warning value, and will obtain the vehicle warning value;

[0056] The vehicle data analysis module analyzes and calculates the pressure value received by the vehicle's front door and the real-time floor acceleration of the vehicle respectively, and the specific steps to obtain the vehicle warning value are as follows:

[0057] Step A1: Based on the pressure value received by the vehicle's front door, that is, the pressure data set of the vehicle's front door , calculate the first warning value at the moment , the first warning value at the moment The specific expression is as follows:

[0058]

[0059] where represents the air pressure threshold represents the first warning value at the moment represents the pressure value received by the left front door of the vehicle at the moment represents the pressure value received by the right front door of the vehicle at the moment;

[0060] Step A2: Based on the real-time floor acceleration data of the vehicle, that is, the floor acceleration data set , calculate the second warning value at the moment , the second warning value at the moment The specific expression is as follows:

[0061]

[0062] where represents the acceleration threshold represents the floor acceleration corresponding to the left front door of the vehicle at the moment represents the floor acceleration corresponding to the right front door of the vehicle at the moment represents the second warning value at the moment;

[0063] Step A3: Based on the first warning value at the moment and the second warning value at the moment calculate comprehensively to obtain the vehicle warning value at the moment The specific expression of the vehicle warning value at the moment is as follows:

[0064]

[0065] Among them, represents the vehicle warning value at a moment, represents the first warning value at a moment, represents the second warning value at a moment.

[0066] The steps for the safety protection module to determine whether to execute the safety protection measure based on the vehicle warning value are specifically as follows: When the vehicle warning value at a moment is, execute the safety protection instruction. When the vehicle warning value at a moment is, do not execute the safety protection instruction, and the vehicle data analysis module sends the collected vehicle warning value to the safety protection module;

[0067] 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 acquires the 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 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.

[0068] The fault influence 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-circuited, or open-circuited. When any of the above-mentioned fault influence data is acquired, the air pressure airbag sensor fault analysis value or the floor acceleration signal acquisition sensor analysis value is output as 1. If none of the above-mentioned fault influence data is acquired, 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:

[0069] When the air pressure airbag sensor fault analysis value or the floor acceleration signal acquisition sensor analysis value is 1, execute the fault warning instruction, specifically: upload the fault code and the fault light is on;

[0070] When the air pressure airbag sensor fault analysis value and the floor acceleration signal acquisition sensor analysis value are 0, do not execute the fault warning instruction;

[0071] 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 reached, outputs a continuous current to the gas generator control points of the vehicle side curtain airbag and the vehicle side airbag to detonate, inflates the airbag, controls the vehicle fuel pump to stop pumping oil, controls the output of four-door opening and unlocking signals, and simultaneously turns on the left and right turn signals. Specifically: The airbag controller collects the front door air pressure change signal and the floor airbag sensor acceleration signal. When both the air pressure signal and the acceleration signal exceed the set collision threshold, the airbag controller determines that the ignition condition is reached, and outputs a continuous current of more than 1.2A / 2ms to the gas generator control points of the side curtain airbag and the side airbag to detonate and inflate the airbag. When the airbag controller does not ignite, the airbag controller continuously outputs a periodic PWM waveform signal (390ms high level, 10ms low level per single cycle) to communicate with the body control module (BCM). When the airbag controller issues an ignition signal instruction, it simultaneously outputs a PWM waveform signal with 3 cycle reversals (390ms low level, 10ms high level) to the body control module (BCM). The body control module (BCM) controls the output of four-door opening and unlocking signals (door lock motors) and four-door window (door and window motors) lowering signals, and simultaneously 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 fuel pump to stop pumping oil to avoid the risk of oil leakage and fire. After a collision occurs, the airbag controller will output a collision ignition CAN signal to the MP5. After receiving it, the MP5 realizes communication with the outside world through the T-box and the speaker for emergency calls for help.

[0072] The specific implementation process of the present invention is as follows: An air pressure airbag acquisition sensor is arranged on the inner panel sheet metal of the front door, and a floor acceleration signal acquisition sensor is arranged at the position of the underfloor of the seat. When there is an accidental risk of a side collision in the vehicle, the front door is instantaneously squeezed, the air inside and outside the door panel cavity is rapidly compressed, and the air pressure sensor installed at the vehicle door starts to work, transmitting the air pressure signal to the ACU. At the same time, the acceleration sensor at the floor also acquires 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 issues a hard-wire high-current signal to the side airbag, triggering the deployment of the side airbag and the side curtain to provide side protection for the occupants. At the same time, the ACU will issue a PWM pulse collision output signal to the body controller, and the body controller hard-wires to control the unlocking of the four doors and activates the in-vehicle double-flash warning light to prepare for external rescue. The ACU will also output a fuel cut-off CAN signal to the engine ECM, and the ECM outputs an instruction to stop the fuel pump to prevent the risk of oil leakage and fire. The ACU will also output a collision signal to the MP5, and the MP5 communicates with the outside through the T-box vehicle networking system for voice call for help. At the same time, the airbag controller has a function of self-checking for faults in each sensor, airbag module, and wiring harness circuit. If there is a fault, the fault light on the instrument panel will light up, and the airbag controller will record and store the fault code.

[0073] The present invention also provides a method for computer-controlled vehicle side collision safety protection. Based on the above computer-controlled vehicle side collision safety protection system, it includes the following steps:

[0074] Step 1: Before the vehicle travels, collect the fault influence data of the air pressure airbag sensor that measures the pressure value on the front door of the vehicle and the floor acceleration signal acquisition sensor. If the fault influence data is collected, output the fault analysis value of the air pressure airbag sensor or the floor acceleration signal acquisition sensor as 1, and execute Step 2. If the fault influence data is not collected, output the fault analysis value of the air pressure airbag sensor or the floor acceleration signal acquisition sensor as 0, and execute Step 3;

[0075] Step 2: Execute the fault warning instruction, upload the fault code and the fault light lights up;

[0076] Step 3: During the vehicle's travel, collect the real-time floor acceleration of the vehicle and the pressure value on the front door of the vehicle, and respectively analyze and calculate the collected pressure value on the front door of the vehicle and the real-time floor acceleration of the vehicle to obtain the vehicle warning value;

[0077] Step 4: Based on the vehicle warning value, determine whether to execute the safety protection instruction.

[0078] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

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

2. The computer-controlled vehicle side collision safety protection system according to claim 1, wherein: The specific expression for the front door pressure data acquisition unit to acquire the pressure value received by the vehicle's front door is as follows: Among them, represents the pressure dataset of the vehicle's front door, represents the pressure value on the left front door of the vehicle at time represents the pressure value on the right front door of the vehicle at time 3. The computer-controlled vehicle side collision safety protection system according to claim 2, wherein: The specific expression for the floor acceleration acquisition unit to acquire the real-time floor acceleration of the vehicle is as follows: Among them, represents the floor acceleration data set, denotes the floor acceleration corresponding to the left front door of the vehicle at time denotes the floor acceleration corresponding to the right front door of the vehicle at time.

4. A vehicle side impact safety protection system under computer control according to claim 3, characterized in that: The specific steps for the automotive data analysis module to analyze and calculate the acquired pressure value received by the vehicle's front door and the real-time floor acceleration of the vehicle respectively to obtain a vehicle warning value are as follows: Step A1: Based on the pressure value received by the vehicle's front door, i.e., the pressure dataset received by the vehicle's front door, , calculate the first warning value at ; Step A2: Based on the real-time vehicle floor acceleration data, i.e., the floor acceleration data set , calculate the second warning value at the moment ; Step A3: Based on the first warning value at and the second warning value at calculate comprehensively to obtain the vehicle warning value at 5. A vehicle side impact safety protection system under computer control according to claim 4, characterized in that: The first warning value calculated in step A1 until the moment has the following specific expression: Among them, represents the air pressure threshold, represents the first warning value at time represents the pressure value received by the left front door of the vehicle at time represents the pressure value received by the right front door of the vehicle at time; In step A2, the calculated second warning value at the moment has the following specific expression: Among them, represents the acceleration threshold, represents the floor acceleration of the left front door of the vehicle corresponding to the moment, represents the floor acceleration of the right front door of the vehicle corresponding to the moment, represents the second warning value at the moment; The calculation in step A3 The specific expression of the vehicle warning value at the moment is as follows: Among them, represents the vehicle warning value at the moment, represents the first warning value at the moment, represents the second warning value at the moment.

6. A vehicle side collision safety protection system under computer control according to claim 5, characterized in that: The steps for the safety protection module to determine whether to execute safety protection measures based on the vehicle warning value are specifically as follows: When the vehicle warning value at the moment is reached, execute the safety protection instruction. When the vehicle warning value at the moment is reached, do not execute the safety protection instruction.

7. The vehicle side collision safety protection system under computer control according to claim 6, characterized in that: The specific execution steps of the safety protection instruction are: The airbag controller of the vehicle side airbag installed on the side of the vehicle determines that the ignition condition is reached, outputs a continuous current to the gas generator control points of the vehicle side curtain airbag and the vehicle side airbag to detonate, inflates the airbag, controls the vehicle fuel pump to stop pumping oil, controls the output of four-door opening and unlocking signals, and simultaneously turns on the left and right turn signals.

8. A vehicle side collision safety protection system under computer control according to claim 1, characterized in that: The fault impact 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-circuited, or open-circuited. When any of the above fault impact data is acquired, the output air pressure airbag sensor fault analysis value or floor acceleration signal acquisition sensor analysis value is 1. If none of the above fault impact data is acquired, the output air pressure airbag sensor fault analysis value or floor acceleration signal acquisition sensor analysis value is 0.

9. A vehicle side collision safety protection system under computer control according to claim 8, characterized in that: The steps for the fault warning unit to determine whether to execute a fault warning instruction based on the air pressure airbag sensor fault analysis value and the floor acceleration signal acquisition sensor analysis value are: When the fault analysis value of the air pressure airbag sensor or the analysis value of the floor acceleration signal acquisition sensor is 1, execute the fault warning instruction, specifically: upload the fault code and the fault light is on; When the fault analysis value of the air pressure airbag sensor and the analysis value of the floor acceleration signal acquisition sensor are 0, do not execute the fault warning instruction.

10. A method for protecting the safety of a vehicle in a side collision under computer control, based on the system for protecting the safety of a vehicle in a side collision under computer control according to any one of claims 1-9, characterized in that: It includes the following steps: Step 1: Before the vehicle starts, collect the fault impact data of the air pressure airbag sensor and the floor acceleration signal acquisition sensor that measure the pressure value on the front door of the vehicle. If the fault impact data is collected, output the fault analysis value of the air pressure airbag sensor or the analysis value of the floor acceleration signal acquisition sensor as 1, and execute Step 2. If the fault impact data is not collected, output the fault analysis value of the air pressure airbag sensor or the analysis value of the floor acceleration signal acquisition sensor as 0, and execute Step 3; Step 2: Execute the fault warning instruction, upload the fault code and the fault light is on; Step 3: During the vehicle's driving, collect the vehicle's real-time floor acceleration and the pressure value on the front door of the vehicle, and respectively analyze and calculate the collected pressure value on the front door of the vehicle and the vehicle's real-time floor acceleration 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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