KR20100089659A - Restriction device's control method for the side of passenger - Google Patents

Restriction device's control method for the side of passenger Download PDF

Info

Publication number
KR20100089659A
KR20100089659A KR1020090009000A KR20090009000A KR20100089659A KR 20100089659 A KR20100089659 A KR 20100089659A KR 1020090009000 A KR1020090009000 A KR 1020090009000A KR 20090009000 A KR20090009000 A KR 20090009000A KR 20100089659 A KR20100089659 A KR 20100089659A
Authority
KR
South Korea
Prior art keywords
sensor
speed
calculated
impact sensor
side impact
Prior art date
Application number
KR1020090009000A
Other languages
Korean (ko)
Inventor
박태원
Original Assignee
현대모비스 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 현대모비스 주식회사 filed Critical 현대모비스 주식회사
Priority to KR1020090009000A priority Critical patent/KR20100089659A/en
Publication of KR20100089659A publication Critical patent/KR20100089659A/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
    • B60R21/0136—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to actual contact with an obstacle, e.g. to vehicle deformation, bumper displacement or bumper velocity relative to the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R2021/0002—Type of accident
    • B60R2021/0006—Lateral collision
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
    • B60R21/0132—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to vehicle motion parameters, e.g. to vehicle longitudinal or transversal deceleration or speed value
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • B60R21/23138—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for side protection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/30—Sensors
    • B60Y2400/304—Acceleration sensors
    • B60Y2400/3042—Collision sensors

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air Bags (AREA)

Abstract

PURPOSE: A method for controlling a restriction device for side passengers is provided to improve reliability and to prevent malfunction by physically reflecting deformation of a vehicle to optimized operation time. CONSTITUTION: A method for controlling a restriction device for side passengers is as follows. A first average acceleration and a first speed are calculated using a first side collision sensor(102). A first critical value of the first side collision sensor is calculated using a center collision sensor. A second critical value of the first side collision sensor is calculated based on the speed of the center collision sensor. The first average acceleration is compared with the first critical value. The first speed is compared with the second critical value.

Description

Restriction device's control method for the side of passenger}

       The present invention relates to a control method of a side passenger restraint device, and more particularly, to a side passenger restraint device which can reliably determine an optimized operating time of the side passenger restraint device using a control method that physically reflects deformation of the vehicle body. It relates to a control method.

Generally, a side air bag for a vehicle includes a thorax air bag embedded in a seat and a curtain air bag embedded in a pillar of a vehicle body, and a passenger in case of a side collision This prevents the passenger's head and shoulders from hitting hard doors or injuring broken debris on the door windows when inclined to the door side or when the door is crushed inwards, and prevents the passengers from jumping out of the body.

The vehicle side airbag control system detects a side impact of the vehicle and controls whether the side airbag is deployed.

In general, a vehicle side airbag module includes a side airbag that protects a passenger's side from impact, an inflator that ejects high-pressure gas to the side airbag, and a pair of side impact sensors installed on the left and right sides of the vehicle. ), And an air-bag control unit (ACU) for controlling the deployment of the side airbag from the signal input from the side collision sensor. The inside of the airbag control unit is also equipped with a central collision sensor for detecting a collision.

The control method of the side airbag module configured as described above is described as follows. First, when a side collision accident of a vehicle occurs, the side collision sensor detects a shock generated from the side of the vehicle, and the center collision sensor is caused by the side impact. Detect the impact of the center transmitted to the center of the.

The airbag control unit compares a deceleration value, a speed value, and the like corresponding to the detected shock with a preset threshold value, and determines whether to deploy the side airbag.

However, since the general method of controlling the side airbags does not consider the behavior or deformation of the vehicle, there is a problem that the side airbags may malfunction when driving on roads with rough roads or obstacles or when the doors of the vehicle are closed hard.

It is an object of the present invention to provide a control method of a side passenger restraint device which can improve reliability by physically reflecting the behavior of a vehicle and a deformation of a vehicle body at an optimized operating time of the side passenger restraint device.

The control method of the side passenger restraint device according to the present invention calculates a first average acceleration and a first speed according to the deceleration detected by the first side collision sensor, and based on the first speed, Calculating a first threshold value, calculating a center collision sensor speed according to the deceleration detected by the center collision sensor, and calculating a second threshold value of the first side impact sensor based on the center collision sensor speed A first comparing step of comparing the calculated first average acceleration with a first threshold value of the first side impact sensor, and a second comparing the calculated first speed with a second threshold value of the first side impact sensor. And determining whether to operate the side passenger restraint device according to the comparison result of the second comparison step and the first comparison step and the comparison result of the second comparison step.

In the determining step, the calculated first average acceleration exceeds the first threshold value of the first side impact sensor and the calculated first speed exceeds the second threshold value of the first side impact sensor. If so, operate the side passenger restraint device.

Further, the determining step may include operating the side passenger restraint device when the pressure change value sensed by the pressure sensor exceeds the first threshold value calculated based on the pressure value according to the detected pressure change value. It features.

In addition, the determining step, the second average acceleration calculated based on the deceleration detected by the second side impact sensor exceeds the first threshold value of the second side impact sensor, and through the second side impact sensor When the second speed calculated based on the sensed deceleration exceeds the second threshold of the second side impact sensor, the side passenger restraint device is activated.

In addition, the first side impact sensor may be provided on one side of the vehicle on the left or right side.

The control method of the side passenger restraint device according to the present invention can physically reflect the behavior of the vehicle and the deformation of the vehicle body at the optimized operating time of the side passenger restraint device, thereby improving reliability.

      The control method of the side passenger restraint apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing the configuration of the side passenger restraint device according to the present invention.

Referring to FIG. 1, the side passenger restraint device according to the present invention includes an airbag control unit 100, a first side collision sensor 102, a second side collision sensor 104, a third side collision sensor 106, A four side impact sensor 108, a first pressure sensor 112, and a second pressure sensor 114.

The first side collision sensor 102 is provided at the right front side, and detects a deceleration rate and provides it to the airbag control unit 100.

The second side collision sensor 104 is provided at the right rear side, and detects a deceleration rate and provides it to the airbag control unit 100.

The third side collision sensor 106 is provided at the left front side, and detects the deceleration rate and provides it to the airbag control unit 100.

The fourth side impact sensor 108 is provided at the left rear side, and detects the deceleration rate and provides it to the airbag control unit 100.

The first pressure sensor 112 is provided at the right front side, and detects a pressure change value and provides the pressure change value to the airbag control unit 100.

The second pressure sensor 114 is provided on the left front side, and detects a pressure change value and provides the pressure change value to the airbag control unit 100.

The airbag control unit 100 calculates the first average acceleration and the first speed according to the deceleration detected by the first side impact sensor 102, and based on the first speed, the first threshold of the first side impact sensor Calculate the value.

      The airbag control unit 100 calculates the center collision sensor speed according to the deceleration speed detected by the center collision sensor provided therein, and calculates a second threshold value of the first side collision sensor based on the center collision sensor speed. .

The airbag control unit 100 compares the calculated first average acceleration with the first threshold value of the first side impact sensor and compares the calculated first speed with the second threshold value of the first side impact sensor. Based on the results of the comparison, the operation of the side passenger restraint system is determined.

That is, the airbag control unit 100 calculates when the calculated first average acceleration exceeds the first threshold of the first side impact sensor and the calculated first speed exceeds the second threshold of the first side impact sensor. , Activate the side passenger restraints.

In addition, the airbag control unit 100 may limit the side passenger when the pressure change value detected by the first pressure sensor 112 exceeds the first threshold value calculated based on the pressure value according to the detected pressure change value. The device can be operated.

On the other hand, the airbag control unit 100 has a second average acceleration calculated based on the deceleration detected through the second side impact sensor 104 exceeds the first threshold value of the second side impact sensor, and the second side surface. The side passenger restraint device is activated when the second speed calculated based on the deceleration detected through the collision sensor exceeds the second threshold of the second side collision sensor.

2 is a view showing a control method of the side passenger restraint apparatus according to an embodiment of the present invention.

2, the airbag control unit calculates a first average acceleration and a first speed according to the deceleration detected by the first side impact sensor, and based on the first speed, the first threshold of the first side impact sensor Calculates a value, calculates the center collision sensor speed according to the deceleration detected by the central collision sensor provided therein, calculates a second threshold value of the first side collision sensor based on the center collision sensor speed, and calculates When the calculated first average acceleration exceeds the first threshold value of the first side impact sensor and the calculated first speed exceeds the second threshold value of the first side impact sensor (S10), the side passenger restraint device is activated. Let's do it.

Meanwhile, the airbag control unit calculates the second average acceleration and the second speed according to the deceleration detected by the second side impact sensor, and calculates the first threshold value of the second side impact sensor based on the second speed. Calculating the center collision sensor speed according to the deceleration detected by the center collision sensor provided therein, calculating the second threshold value of the second side collision sensor based on the center collision sensor speed, and calculating the calculated second average. When the acceleration exceeds the first threshold of the second side impact sensor and the calculated second speed exceeds the second threshold of the second side collision sensor (S20), the side passenger restraint device is activated.

On the other hand, the airbag control unit operates the side passenger restraint device when the pressure change value detected by the first pressure sensor exceeds the first threshold value calculated based on the pressure value according to the detected pressure change value (S30). You can.

3 is a view showing a control method of the side passenger restraint device according to another embodiment of the present invention.

Referring to FIG. 3, the airbag control unit calculates a third average acceleration and a third speed according to the deceleration detected by the third side impact sensor, and based on the third speed, the first threshold of the third side impact sensor Calculates the value, calculates the center collision sensor speed according to the deceleration detected by the central collision sensor provided therein, calculates the second threshold value of the third side collision sensor based on the center collision sensor speed, and calculates When the calculated third average acceleration exceeds the first threshold of the third side impact sensor, and the calculated third speed exceeds the second threshold of the third side impact sensor (S40), the side passenger restraint device is activated. Let's do it.

Meanwhile, the airbag control unit calculates the fourth average acceleration and the fourth speed according to the deceleration detected by the fourth side impact sensor, and calculates the first threshold value of the fourth side impact sensor based on the fourth speed. The center collision sensor speed is calculated according to the deceleration speed detected by the center collision sensor provided therein, the second threshold value of the fourth side collision sensor is calculated based on the center collision sensor speed, and the calculated fourth average is calculated. When the acceleration exceeds the first threshold of the fourth side impact sensor and the calculated fourth speed exceeds the second threshold of the fourth side impact sensor (S50), the side passenger restraint device is activated.

On the other hand, the airbag control unit operates the side passenger restraint device when the pressure change value detected by the second pressure sensor exceeds the first threshold value calculated based on the pressure value according to the detected pressure change value (S60). You can.

While the above has been shown and described with respect to preferred embodiments of the present invention, the present invention is not limited to the specific embodiments described above, it is usually in the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

1 is a view showing the configuration of the side passenger restraint device according to the present invention.

Figure 2 is a view showing a control method of the side passenger restraint device according to an embodiment of the present invention.

Figure 3 is a view showing a control method of the side passenger restraint device according to another embodiment of the present invention.

Claims (5)

Calculating a first average acceleration and a first speed according to the deceleration detected by the first side impact sensor, and calculating a first threshold value of the first side impact sensor based on the first speed;       Calculating a center collision sensor speed according to the deceleration detected by the center collision sensor, and calculating a second threshold value of the first side impact sensor based on the center collision sensor speed; A first comparing step of comparing the calculated first average acceleration with a first threshold value of the first side impact sensor; A second comparing step of comparing the calculated first speed with a second threshold of the first side impact sensor; And And determining whether to operate the side passenger restraint device according to the comparison result of the first comparison step and the comparison result of the second comparison step.       The method of claim 1, wherein the determining step, The side passenger restraint device when the calculated first average acceleration exceeds a first threshold of the first side impact sensor and the calculated first speed exceeds a second threshold of the first side impact sensor. Control method of the side passenger restraint, characterized in that for operating.       The method of claim 1, wherein the determining step,       And when the pressure change value sensed by the pressure sensor exceeds the first threshold value calculated based on the pressure value according to the detected pressure change value, operating the side passenger restraint device. Control method. The method of claim 1, wherein the determining step, The second average acceleration calculated based on the deceleration detected through the second side impact sensor exceeds the first threshold of the second side collision sensor, and is based on the deceleration detected through the second side impact sensor. And when the calculated second speed exceeds a second threshold of the second side impact sensor, operating the side passenger restraint device. The method of claim 1, The control method of the side passenger restraint device, characterized in that the first side impact sensor is provided on one side of the left or right side of the vehicle.
KR1020090009000A 2009-02-04 2009-02-04 Restriction device's control method for the side of passenger KR20100089659A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020090009000A KR20100089659A (en) 2009-02-04 2009-02-04 Restriction device's control method for the side of passenger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020090009000A KR20100089659A (en) 2009-02-04 2009-02-04 Restriction device's control method for the side of passenger

Publications (1)

Publication Number Publication Date
KR20100089659A true KR20100089659A (en) 2010-08-12

Family

ID=42755525

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020090009000A KR20100089659A (en) 2009-02-04 2009-02-04 Restriction device's control method for the side of passenger

Country Status (1)

Country Link
KR (1) KR20100089659A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160057832A (en) * 2014-11-14 2016-05-24 현대모비스 주식회사 Apparatus and method for protection of vehicle passenger

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160057832A (en) * 2014-11-14 2016-05-24 현대모비스 주식회사 Apparatus and method for protection of vehicle passenger

Similar Documents

Publication Publication Date Title
US6553295B1 (en) System for sensing a side impact collision
US6438475B1 (en) Crash detection system
US8708366B2 (en) Vehicle side impact detection using vehicle yaw
JP5243442B2 (en) Vehicle safety system
KR101620110B1 (en) Side air bag for pre-crash
US20060226640A1 (en) A system and method for sensing and deployment control supervision of a safety device
KR102131448B1 (en) Apparatus for protecting a passenger of an autombile
JP4999843B2 (en) Side airbag unit for automobile
US8219287B2 (en) System and method for integration of crash signature sensor in vehicle side impact sensing
JP2008514496A (en) Drive control method for occupant protection means and drive control device for occupant protection means
US20100179731A1 (en) System and method for performing vehicle side impact sensing with unit area impulse technique
JP5803852B2 (en) Collision detection device and occupant protection system
KR102272076B1 (en) Airbag deployment method in accordance with Small overlap collision
JP2009220784A (en) Airbag control device and airbag control method
KR100747399B1 (en) Control method of side air-bag module
KR20120018612A (en) Air bag control method
KR20100089659A (en) Restriction device's control method for the side of passenger
JP2008080979A (en) Control method for occupant protection control device
KR20120071995A (en) Control method for side impact passenger protecting apparatus
KR102074761B1 (en) Protecting device for passengers of vehicles and control method for the same device
KR102227219B1 (en) Small overlap collision decision method for airbag deployment
KR100892817B1 (en) Method for controlling air-bag by using tire pressure monitoring system
KR101627502B1 (en) Passenger protection device of automobile
KR20080008107A (en) Cushion of air bag device and control method for the same
KR20130113014A (en) Apparatus and method for controlling air bag

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application