KR19990030756U - Airbag Deployment Decision Control Logic - Google Patents

Abstract

The present invention relates to an airbag deployment judgment control logic, and in particular, a first o-gate which combines a signal value of whether the driver wears the seat belt and a signal value when the driver does not wear the seat belt; The combination of the signal value of the belt pretensioner holding the seat belt 5 times or more and the signal value output from the first oragate and the driver's belt pretensioner operating to prevent the driver's seat belt from being released during an impact. A first AND gate that combines the signal value and the lower judgment level signal value by an AND; A second AND gate which combines the logic value output from the first ant gate and the signal value output from the safety sensor in a logical product; A second orifice that combines the signal value of the passenger seated in the passenger seat with the seat belt and the signal value when the passenger does not wear the seat belt; The combination of the signal value of the belt pretensioner that holds the seat belt at least five times and the signal value output from the second orifice and the belt pretensioner of the passenger when the seat belt is not released in the event of an impact. A third AND gate that combines the signal value and the lower judgment level signal value by an AND; A fourth AND gate which combines the signal value output from the third AND gate and the signal value of whether the passenger is in the passenger seat in a logical product; A fifth AND gate which combines the signal value output from the fourth AND gate and the signal value output from the safety sensor in a logical product; A sixth end gate which logically combines a signal value of whether the driver wears the seat belt and the lower judgment level signal value; A seventh AND gate which logically combines the signal value of the driver's seat belt with the upper determination level signal value; A third orifice that combines the signal value output from the sixth end gate and the signal value output from the seventh AND gate in a logical sum; An eighth end gate combining the signal value output from the third orifice and the signal value output from the safety sensor in an AND; A ninth end gate which logically combines a signal value of a passenger seated in the passenger seat with a seat belt and a lower judgment level signal value; A tenth AND gate which logically combines the signal value of the passenger seated in the passenger seat with the seat belt and the upper determination level signal value; A fourth orifice that combines the signal value output from the ninth end gate and the signal value output from the tenth AND gate in a logical sum; An eleventh ant gate which logically combines the signal value output from the fourth orifice, the signal value of whether an airbag exists in the passenger seat, and the signal value of whether or not the passenger is in the passenger seat; The present invention provides an airbag deployment judgment control logic comprising a twelfth endgate that logically combines the signal value output from the eleventh endgate with the signal value output from the safety sensor. It is effective in minimizing injuries.

Description

Airbag Deployment Decision Control Logic

The present invention relates to an airbag deployment control logic, and more particularly, to deploy an airbag by integrating whether a driver wears a seat belt, whether an airbag exists in the front passenger seat, and whether a passenger is in the passenger seat. It relates to decision control logic.

Commercially available airbags do not take into account the passenger's condition (whether seatbelts are worn), airbag components (belt pretensioners, passenger airbags, passenger passenger detectors) and passenger presence. In addition, if the airbag deployment conditions are satisfied when the vehicle collides, the driver's seat and the passenger's seat airbag, and the BELTPRETENTIONER of the driver's seat and the passenger seat are simultaneously deployed.

However, the airbag and belt pretensioner operated as described above increases the airbag repair cost by deploying the passenger seat airbag even when there are no passengers in the passenger seat, and the same as the passenger wearing the seat belt even for a passenger who does not wear a seatbelt. There was a problem of increasing the injury value by the departure of the airbag by applying the airbag by applying the standard, and injuring the passenger by deploying the airbag even in the slightest collision that can restrain the passenger only by the seat belt.

The purpose of the present invention is to solve the above-mentioned conventional problems, and in particular, the passenger seat by combining whether the driver is wearing a seat belt, whether there is an air bag in the passenger seat and whether the passenger is in the passenger seat. If there is no occupant, the airbag deployment time is adjusted according to whether the driver wears a seat belt or not, and if a passenger rides in the front passenger seat, it is determined whether the front passenger is wearing a seat belt as in the case of the driver's seat. It is to provide an airbag deployment control logic for deploying the airbag by adjusting the airbag deployment timing.

In order to achieve the above object, the airbag deployment control logic of the present invention has a signal value of whether the driver wears a seat belt (referred to as DBB below DRIVER BUCKLE BELTED) and when the driver does not wear a seat belt (DRIVER BUCKLE BELTED FAULT). A first oragate which combines the signal values of DBBF below) into a logical sum; The signal value for whether the belt pretensioner holding the seat belt is operated more than 5 times (called DBPTF below MAX # OF DRIVER BPT FIRING) to prevent the driver's seat belt from being released during an impact and the signal value output from the first oragate A first AND gate which combines the combined value and the signal value of whether the driver's belt pretensioner has been operated (hereinafter referred to as DBPT) and the lower judgment level signal value by logical AND; A second AND gate which combines a logic value output from the first AND gate and a signal value output from a safety sensor (hereinafter referred to as SS) by a logical product; Combines the signal value of whether or not the passenger seated in the front passenger's seat belt is worn (PBBENGER BUCKLE BELTED and below PBB) and the signal value of passengers not wearing the seat belt (PASSENGER BUCKLE BELTED FAULT and below PBBF). A second oragate; Combination of the signal value of the belt pretensioner that holds the seat belt at least five times (referred to as PBPTF below MAX # OF PASSENGER BPT FIRING) to prevent the passenger's seat belt from being released during an impact and the signal value output from the second orifice A third AND gate which logically combines a signal value and a lower judgment level signal value of one value and a passenger's belt pretensioner (hereinafter referred to as PBPTER) as the PBPT; A fourth AND gate which combines the signal value output from the third AND gate and the signal value of whether the passenger is in the passenger seat (referred to as PASSENGER PREGENCE or less PP); A fifth AND gate which combines the signal value output from the fourth AND gate and the signal value output from the safety sensor SS in a logical product; A sixth AND gate which logically combines a signal value of whether the driver wears a seat belt (DBB) and a lower judgment level signal value; A seventh AND gate which combines a signal value of whether the driver wears a seat belt (DBB) and the upper determination level signal value in a logical product; A third orifice that combines the signal value output from the sixth end gate and the signal value output from the seventh AND gate in a logical sum; An eighth end gate combining the signal value output from the third orifice and the signal value output from the safety sensor in an AND; A ninth end gate which logically combines a signal value of a passenger seated in the passenger seat with a seat belt and a lower judgment level signal value; A tenth AND gate which logically combines the signal value of the passenger seated on the passenger seat with the seat belt PBB and the upper determination level signal value; A fourth orifice that combines the signal value output from the ninth end gate and the signal value output from the tenth AND gate in a logical sum; An eleventh ant gate combining a signal value output from the fourth oragate and a signal value of whether an airbag exists in the passenger seat (hereinafter referred to as PASSENGER AIRBAG or PAG) and a signal value of whether the passenger is in the passenger seat; And a twelfth end gate that combines the signal value output from the eleventh end gate and the signal value output from the safety sensor in a logical product.

1 is a logic diagram of the airbag deployment judgment control logic of the present invention.

Explanation of symbols for the main parts of the drawings

10: first oragate 11: first and gate

12: second AND gate 13: second OA gate

14: third endgate 15: fourth endgate

16: fifth and gate 17: sixth gate

18: 7th Andgate 19: 3rd Oagate

20: 8th Andgate 21: 9th Andgate

22: 10th Andgate 23: 4th Oagate

24: 11th Andgate 25: 12th Andgate

Hereinafter, with reference to the accompanying drawings for an embodiment according to the technical idea of the present invention airbag deployment decision control logic configured as described above in detail as follows.

Example

As shown in FIG. 1, the first oragate 10 combines a signal value of whether the driver wears the seat belt and a signal value of the case where the driver does not wear the seat belt in a logical sum to combine the combined signal values. 1 end gate 11, the first end gate 11, the signal value for the belt pre-tensioner for holding the seat belt so as not to loosen the driver's seat belt in the event of an impact and the first o-gate The signal value output from (10), the signal value of whether the driver's belt pretensioner is activated and the lower determination level signal value are logically combined with each other, and the combined signal value is transferred to the second end gate 12. The second end gate 12 combines the logic value output from the first ant gate 11 and the signal value output from the safety sensor in a logical product, and according to the combined signal value. The operation time of the driver's seat belt pretensioner is adjusted, and the second oragate 13 performs a logical sum of a signal value of whether the passenger seated in the passenger seat is worn with a seat belt and a signal value when the passenger does not wear the seat belt. And the combined signal value is output to the third end gate 14, and the third end gate 14 determines whether the belt pretensioner, which holds the seat belt, is operated more than five times so that the seat belt of the passenger is not released in the event of an impact. The signal value and the signal value of the belt pretensioner of the passenger and the lower determination level signal value are logically combined with each other. The fourth end gate 15 is output to the fourth end gate 15, and the fourth end gate 15 receives a signal value output from the third end gate 14 and whether the passenger is in the passenger seat. Combining the call value by the logical product to output the combined signal value to the fifth end gate 16, the fifth end gate 16 outputs the signal value output from the fourth end gate 15 and the safety sensor Combining the signal value by the logical product to adjust the operating point of the front passenger seat belt pretensioner according to the combined signal value, and in the sixth end gate 17 the signal value and lower judgment level of whether the driver is wearing the seat belt The signal values are combined by a logical product, and the combined signal values are output to the third oragate 19. In the seventh end gate 18, a signal value indicating whether the driver wears a seat belt and a higher determination level signal value Are combined by a logical product to output the combined signal value to the third orifice 19, and in the third orifice 19, the signal value output from the sixth and gate 17 and the seventh AND gate. From (18) The output signal values are combined by a logical sum, and the combined signal values are output to the eighth end gate 20. In the eighth end gate 20, the signal values and the safety sensor output from the third oragate 19 are output. By combining the signal value output from the logical AND to adjust the inflation time of the driver's seat airbag according to the combined signal value, and the ninth endgate (21) signal whether the passenger seated in the passenger seat wearing a seat belt And the lower decision level signal value are logically combined to output the combined signal value to the fourth OA gate 23. The tenth end gate 22 determines whether the passenger seated in the passenger seat wears a seat belt. The combined signal value and the upper judgment level signal value are logically combined to output the combined signal value to the fourth orifice 23, and the fourth orifice 23 is outputted from the ninth endgate 21. Being The call value and the signal value output from the tenth end gate 22 are combined in a logical sum to output the combined signal value to the eleventh end gate 24. The signal value output from 23 and the signal value of whether an airbag is present in the passenger seat and the signal value of whether or not the passenger is in the passenger seat are logically combined to combine the combined signal value into the twelfth end gate 25. In the twelfth end gate 25, the signal value output from the eleventh end gate 24 and the signal value output from the safety sensor are logically combined, and the passenger seat airbag is deployed according to the combined signal value. By adjusting the viewpoint, this embodiment is constructed.

Hereinafter, the operation of the present embodiment configured as described above will be described in detail with reference to the accompanying drawings.

First, when the driver wears the seat belt during a vehicle crash, the first OA gate (1), which is a signal value of whether the driver wears the seat belt, and zero (0), which is a signal value when the driver does not wear the seat belt, When combined with the logical sum in 10), the logic value is outputted as 1, which is a signal value of whether the belt pretensioner which holds the seat belt 5 times or more has been operated so that the driver's seat belt is not released in the event of an impact. 10, the logical value is 1 when the first AND gate 11 combines 1, which is the signal value output from 10, 1, which is the signal value of the driver's belt pretensioner, and 1, which is the lower judgment level signal value. Is output, and when the logical value 1 output from the first ant gate 11 and the logical value 1 output from the safety sensor are combined by a logical product in the second end gate 12, the logical value is outputted as 1. do.

This is a signal that the driver wears a seat belt, and the belt pretensioner is operated with a collision in a vehicle crash.

On the other hand, when the driver does not wear a seat belt, the OR value of the first oragate 10 is output as zero (0), and when the output value of the first oragate 10 is zero (0), the first and gate The output values of the 11 and the second end gate 12 become zero, and the driver's seat belt pretensioner does not operate.

On the other hand, the front passenger's seat is 1 when the passenger in the passenger seat wears a seat belt, and 1 when the passenger wears the seat belt and zero when the passenger does not wear the seat belt. Is combined with a logical sum at the second oragate 13, the logic value is outputted as 1, and the belt pretensioner holding the seatbelt does not operate more than 5 times so that the passenger's seatbelt does not loosen during impact. The third AND gate 14 logically combines 1, which is a signal value output from the second oragate 13, 1, which is a signal value of whether the driver's belt pretensioner is activated, and 1, which is a lower determination level signal value. When the logical value is 1, the logical value 1 is output, and the logical value 1, which is output from the third end gate 14, and 1, which is a signal indicating whether the passenger is in the passenger seat, are logically multiplied by the fourth end gate 15. If you do When the logic value 1 is outputted and the logical value 1 outputted from the fourth end gate 15 and the logical value 1 outputted from the safety sensor are logically multiplied by the fifth end gate 16, the logical value becomes Outputs 1

This is a sign that the passenger is wearing a seat belt, and the belt pretensioner is operated with a collision in a vehicle crash.

On the other hand, when the driver does not wear the seat belt, the logical sum value of the second orifice 13 is output as zero (0), and when the output value of the second oragate 13 is zero (0), the third and gate The output values of the 14 and fourth end gates 15 and the fifth end gate 16 become zero, and the driver's seat belt pretensioner does not operate.

When the driver wears the seat belt, the signal value of whether the driver wears the seat belt is 1, and if the lower judgment level is 1, the logical product of the sixth end gate 17 is output 1, and the driver When the signal value of whether the seat belt is worn is 1 and the upper determination level is 1, the value 1 is logically multiplied by the seventh end gate 18.

The lower determination level and the higher determination level determine the strength of the collision according to the degree of the vehicle collision during the vehicle collision.

When the first output from the sixth end gate 17 and the first output from the seventh end gate 18 are combined in a logical sum at the third orifice 19, the third orifice 19 is 1. Is a logic value.

The signal value of 1 output from the third oragate 19 and the signal value of 1 output from the safety sensor are logically multiplied by the eighth end gate 20 to delay the airbag deployment time of the driver's seat a little later.

When the driver does not wear the seat belt, the outputs of the sixth and seventh gates 17 and 18 become zero, and the third oragate 19 also outputs zero. The driver's seat airbags will be deployed a little earlier.

On the other hand, in the case of the passenger seat, when the passenger who rides in the passenger seat wears a seat belt, the signal value of whether the passenger wears the seat belt is 1, and when the lower judgment level is 1, the logic is determined by the ninth end gate 21. When the multiplied value is output 1, the signal value of whether the driver wears the seat belt is 1, and when the upper determination level is 1, the logical value multiplied by the 10th end gate 22 is outputted.

When the first output from the ninth end gate 21 and the first output from the tenth end gate 22 are combined in a logical sum at the fourth orifice 23, the fourth orifice 23 is set to 1. Is a logic value.

The signal value 1 output from the fourth oragate 23, the signal value 1 for the agent where the passenger's airbag is present, and the signal value 1 when the passenger is in the passenger seat are logically multiplied by the eleventh end gate 24. In this case, a signal value of 1 is output from the eleventh AND gate 24.

The signal value of 1, which is output from the eleventh end gate 24, and the signal of 1, which is output from the safety sensor, are logically multiplied by the twelfth and gate 25 to delay the airbag deployment time of the driver's seat a little later.

When the driver does not wear the seat belt, the outputs of the ninth endgate 21 and the tenth endgate 22 become zero, and the fourth oragate 23 also outputs zero. The passenger's seat airbags will be deployed a little earlier.

As described above, the airbag deployment control logic of the present invention, in particular, adjusts the airbag deployment time when the driver wears the seat belt and when the seat belt is not worn, thereby minimizing the passenger injury. It works.

Claims (3)

A first orifice that combines a signal value of whether the driver wears the seat belt and a signal value of the case of the driver not wearing the seat belt in a logical sum; The combination of the signal value of the belt pretensioner holding the seat belt 5 times or more and the signal value output from the first oragate and the driver's belt pretensioner operating to prevent the driver's seat belt from being released during an impact. A first AND gate that combines the signal value and the lower judgment level signal value by an AND; A second AND gate which combines the logic value output from the first ant gate and the signal value output from the safety sensor in a logical product; A second orifice that combines the signal value of the passenger seated in the passenger seat with the seat belt and the signal value when the passenger does not wear the seat belt; The combination of the signal value of the belt pretensioner that holds the seat belt at least five times and the signal value output from the second orifice and the belt pretensioner of the passenger when the seat belt is not released in the event of an impact. A third AND gate that combines the signal value and the lower judgment level signal value by an AND; A fourth AND gate which combines the signal value output from the third AND gate and the signal value of whether the passenger is in the passenger seat in a logical product; A fifth AND gate which combines the signal value output from the fourth AND gate and the signal value output from the safety sensor in a logical product; A sixth end gate which logically combines a signal value of whether the driver wears the seat belt and the lower judgment level signal value; A seventh AND gate which logically combines the signal value of the driver's seat belt with the upper determination level signal value; A third orifice that combines the signal value output from the sixth end gate and the signal value output from the seventh AND gate in a logical sum; An eighth end gate combining the signal value output from the third orifice and the signal value output from the safety sensor in an AND; A ninth end gate which logically combines a signal value of a passenger seated in the passenger seat with a seat belt and a lower judgment level signal value; A tenth AND gate which logically combines the signal value of the passenger seated in the passenger seat with the seat belt and the upper determination level signal value; A fourth orifice that combines the signal value output from the ninth end gate and the signal value output from the tenth AND gate in a logical sum; An eleventh ant gate which logically combines the signal value output from the fourth orifice, the signal value of whether an airbag exists in the passenger seat, and the signal value of whether or not the passenger is in the passenger seat; And an twelfth end gate that logically combines the signal value output from the eleventh end gate and the signal value output from the safety sensor. 2. The airbag deployment control logic according to claim 1, wherein the twentieth AND gate deploys the driver's airbag earlier than or later than the reference value according to the logic value of the third orifice. The method of claim 1, wherein the twelfth endgate deploys the passenger's airbag earlier than or later than the reference value according to the logical value of the fourth orifice and whether the passenger boarded the passenger seat. Airbag deployment judgment control logic.