JP3019672B2 - Vehicle safety control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an occupant protection device provided in a vehicle for securing occupant safety in a vehicle emergency and a safety device.
Depreciation for the vehicle to control the operation of all equipment for all control devices.

[0002]

2. Description of the Related Art Generally, vehicles are equipped with a pre- installed protection for occupants.
Loader type seat belt device (hereinafter "seat belt device")
Various vehicle safety device is provided to ensure say) of the occupant's Safety. Of these, the seat belt device
An occupant seated in the seat is restrained by webbing, and prevents the occupant's body from moving forward due to inertial force in the event of a vehicle emergency, thereby protecting the occupant.

[0003] Such a seat belt device provided with an acceleration sensor for detecting an acceleration when the vehicle is decelerating rapidly, the predetermined acceleration or more in the time of sudden deceleration of the vehicle upon detection by the acceleration sensor, Uebin grayed wound to the instant
Up can, at the time of sudden deceleration by the inertia force acting on the occupant's body
With multiplication membered body to protect the occupant and prevents from moving forward, in a normal wearing state, the webbing is so as not to give a feeling of pressure to the occupant.

[0004] By the way, as one of the vehicle safety devices, a vehicle equipped with an airbag system for more surely protecting the occupant's body during high-speed running has been popularized. When this airbag system detects acceleration equal to or higher than a predetermined value,
By activating the inflator to instantly inflate the airbag, the occupant's body is prevented from moving forward due to inertial force, so that the occupant's body can be more reliably protected at high speeds I have.

[0005]

[SUMMARY OF THE INVENTION However, the air bag system and preloader seat belt equipment is adapted to operate by detecting an acceleration of a vehicle emergency.
For this reason, the level of acceleration at which each of them operates can be changed. However, when acceleration exceeding a predetermined value is detected, even when the vehicle is running at a low speed, the preloader type seat belt device is used.
Air bag system stomach want to work with location, excessive
There is a problem that occupant protection will be provided .

[0006] The present invention has been made in view of the above-mentioned facts, and various occupant protection devices and safety devices are suitable for use in a vehicle emergency.
And an object thereof is earnestly actuates to provide full control apparatus depreciation for a vehicle capable of securing the occupant safety.

[0007]

SUMMARY OF THE INVENTION A safety control device for a vehicle according to the present invention includes a plurality of occupant protection devices including an airbag system and a preloader type seat belt device for protecting an occupant in the event of a vehicle emergency. A vehicle safety control device for controlling operation of a safety device for securing, a speed detection unit for detecting a traveling speed of a vehicle, an acceleration detection unit for detecting a predetermined acceleration in a vehicle emergency, and the acceleration detection unit. wherein upon detection of the speed detection means based on the traveling speed of the vehicle is operated to select the plurality of occupant protection devices to the safety device co upon detection of a predetermined acceleration
In addition, at least high speed where the running speed of the vehicle exceeds a predetermined speed
When traveling, the airbag system and the preloader type
Activate the seat belt device, and the vehicle travels at a specified speed.
Preloader type seat belt device at low speeds
While actuating characterized including that control unit airbag system to be inoperative, the.

[0008]

According to the present invention described above, when the control means detects a sudden deceleration of the vehicle by the acceleration detection means, the speed of the vehicle is measured by the speed detection means. Thereafter, the control means selects and operates the vehicle safety device according to the vehicle speed.

As described above, by operating the occupant protection device or the safety device selected according to the vehicle speed in the event of a vehicle emergency, the occupant protection device or the vehicle safety device can be efficiently operated to ensure the safety of the occupant. . That is,
When the vehicle high-speed travel, it is possible to reliably protect the occupant of a plurality of occupant protection and safety devices, passenger protection instrumentation that want to operate only during high-speed running of the vehicle
The mounting or safety device does not operate when the vehicle is traveling at low speed. At this time, in the present invention, the speed detecting means
Therefore, based on the detected vehicle speed, it is determined that the vehicle is traveling at high speed.
In the event of a disconnection, the preloader type seat belt
Activate the airbag system to ensure occupant protection
If it is determined that the vehicle is traveling at low speed,
Preloader type seatbelt
The occupants are properly protected by the
It is prevented from being smashed.

As the vehicle safety device applicable to the present invention, in addition to a conventionally known occupant protection device such as an airbag system, a preloader type seat belt device capable of restraining an occupant by an electric signal, Safety such as an automatic brake system that automatically decelerates and stops regardless of the driver's intention in the event of a vehicle emergency
All equipment is raised. Although not necessary when the vehicle is running at high speed, various safety devices such as a door unlocking system that unlocks the doors so that the occupant can easily escape outside the vehicle when the vehicle decelerates to a predetermined speed. Can be applied in combination.

[0011]

FIG. 1 shows a schematic structure of an occupant protection system 10 provided in a vehicle. The occupant protection system 10 includes a system E including a microcomputer.
With the CU 12 as a main component, the system ECU 12
ABS (anti-lock brake system) 14, door control relay 18, emergency information transmitter 50, and conventionally known preloader for occupant protection as a vehicle safety device
Type seat belt device 16 (hereinafter, "seat belt device 1"
6 ") , the airbag system 20 is connected.

Here, each device will be described. As shown in FIG. 2, the ABS 14 is provided at an intermediate portion of a hydraulic pipe 26 connecting the brake master cylinder 22 and a wheel cylinder 24 of a brake provided on each axle.
BS actuator 28, this ABS actuator 2
An ABS controller 30 including a microcomputer for controlling the ABS 8 is provided with a relay unit 3 for driving an ABS actuator 28 by a signal from the ABS controller 30.
2. Rotation speed sensor 36 for detecting the rotation speed of each wheel 34
The general configuration of which is connected is applicable.

In the ABS 14, when the driver depresses the brake pedal 38 and raises the hydraulic pressure of the brake master cylinder 22, each wheel cylinder 24 is controlled via a solenoid valve (not shown) in the ABS actuator 28.
To transmit the pressure rise to activate the brake. At this time, the ABS controller 30 detects the rotation speed of each wheel 34 by the rotation speed sensor 36 and controls the relay unit 32 to brake the wheel 34 at a constant rotation speed without locking each wheel 34. Thus, the vehicle can be stopped in a stable state.

The ABS 14 applied to this embodiment is
An automatic braking function is provided, and when a braking signal is input from the outside, the relay unit 32 is operated to drive the ABS actuator 28, thereby increasing the oil pressure to each wheel cylinder 24 to operate the brake. It has become. This braking signal is transmitted to the occupant protection system 1
0 is input from the system ECU 12.

As shown in FIG. 1, the seatbelt device 16 includes a preloader 40, which is connected to the system ECU 12 so that the preloader 40 is operated by an operation signal from the system ECU 12. Has become. In the seat belt device 16,
When the preloader 40 is operated, the webbing take-up shaft (not shown) is instantaneously rotated in the webbing take-up direction and restrains the occupant. It is designed to reliably prevent it from moving forward.

An airbag sensor 44 for igniting the inflator 42 of the airbag system 20 and activating the airbag is connected to the system ECU 12. The airbag sensor 44 receives the operation signal from the system ECU 12, and the inflator 42
And instantly expands the airbag to protect the occupants.

The system ECU 12 is connected to a door control relay 18 for locking and unlocking a vehicle door. The door control relay 18, the operation or the driver of the vehicle reaches a predetermined speed starts to travel by operating the door lock motor 46 provided in the respective doors, so as to collectively lock the doors Has become. The system ECU 12 outputs an unlock signal to the door control relay 18.
When this unlocking signal is input to the door control relay 18, each door lock motor 46 operates in reverse to release the door lock.

The emergency information transmitter 50 connected to the system ECU 12 transmits a predetermined signal from the antenna 52 when an operation signal is input. As a result, it is possible to notify a facility that receives this transmission signal that some kind of emergency has occurred in the vehicle.

The system EC of the occupant protection system 10
An acceleration sensor 54 and a speed sensor 56 are connected to U12. The acceleration sensor 54 is for detecting the acceleration of the vehicle, the system ECU 12, rapid deceleration of the vehicle, when detecting the predetermined value G ₀ or more acceleration G due to an impact or the like acts on the vehicle, determines that the vehicle is an emergency state It is supposed to. The predetermined value G ₀ of the acceleration is stored is set in advance.

The speed sensor 56 detects the running speed of the vehicle. When the system ECU 12 determines that the vehicle is in an emergency state, the speed sensor 56 reads the vehicle speed V.

Here, the system ECU 12 determines in advance which of the ABS 14, the seatbelt device 16, the door control relay 18, the airbag system 20, and the emergency information transmitter 50 should be operated according to the vehicle speed V at the time of vehicle emergency. This is set so that occupants are protected and emergency measures are taken.

In this embodiment, the predetermined speeds R ₁ , R ₂ (R ₁
≧ R ₂₎ set in advance, when the vehicle speed V is higher faster than the predetermined speed R ₁ (V ≧ R ₁₎ traveling, ABS14, the seat belt device 16, the door control relay 18, the airbag system 20 and the emergency information transmitter 50 All of them are activated. The system ECU 12 operates the ABS 14 to automatically decelerate and stop the vehicle. When the vehicle control speed is reduced to a certain speed by operating the door control relay 18, the door lock is automatically performed. It can also be unlocked.

When the vehicle travels at a low speed (R ₂ ≧ V) where the vehicle speed V is lower than the predetermined speed R ₂ , the ABS 14 and the seat belt device 16 are operated. In addition, medium speed (R
During _1> V> R ₂₎ travel, ABS14, so that to operate the seat belt apparatus 16 and door control relay 18.

Next, the operation of this embodiment will be described with reference to the flowchart shown in FIG. FIG 3 shows a vehicle emergency operation of the system ECU12 the occupant protection system 10 of the present embodiment, this flowchart, for example, luck
The process is executed when the diver turns on the ignition key and starts running the vehicle, and ends when the running ends and the ignition key is turned off.

In the first step 100, the acceleration G detected and input by the acceleration sensor 54 is set to a predetermined value G.
Check if it is greater than ₀ . At this time, the acceleration G is increased to a predetermined value G ₀ by an impact or sudden deceleration of the vehicle.
Is exceeded, it is determined that the vehicle is in an emergency state, and the routine proceeds to the next step 102. In step 102, the speed V of the vehicle is read by the speed sensor 56. In the next steps 104 and 106, the vehicle speed V is compared with predetermined speeds R ₁ and R ₂ set in advance.

In step 104, the speed V becomes the predetermined speed R ₁
If it is larger and it is determined that the vehicle is running at high speed,
Move to step 108. Further, if the velocity V is determined to be greater than the predetermined speed R ₂ in step 106 and proceeds to step 112, when the speed V is determined to be a lower speed than the predetermined speed R _2, the process proceeds to step 114 It has become.

In steps 108 to 116, the operation of each device for ensuring the safety of the occupant in the event of a vehicle emergency is set.

In step 108, the airbag system 20 is operated, and in the next step 110, the emergency information transmitter 50 is operated. In step 112, the door is automatically unlocked when the vehicle is decelerated to a preset speed by operating the door troll relay 18.

Further, in step 114, the seat belt device 16 is operated, and in step 116, the ABS 1
4 is operated to automatically stop the vehicle.

As described above, when the vehicle is running at a high speed, a serious emergency situation may occur.
6 and the airbag system 20 reliably protect the occupant, and automatically decelerate and stop the vehicle. Further, the door lock is unlocked so that the occupant can evacuate without delay after the vehicle stops, and the emergency information transmitter 50 informs that an emergency has occurred.

When an emergency condition is detected during middle-speed running, the occupant is protected by the seat belt device 16, the vehicle is automatically stopped, and the door lock is unlocked. At this speed, it is determined that the occupant can be reliably protected only by the seat belt device 16 without activating the airbag system.

When an emergency condition is detected during low-speed running, only the ABS 14 and the seat belt device 16 are operated. When the vehicle is traveling at low speed,
Even in the event of an emergency, the occupant is easily protected, and the door lock is determined to be unlockable by the occupant himself.

At medium and low speeds, the airbag system 20 is prevented from being acted upon unnecessarily.
There is no need to pay for the airbag system 20 that has been activated once again, and the economic burden on the driver can be reduced. Furthermore, at medium and low speeds,
The emergency information transmitter 50 is not operated, so that it is possible to make a report only in a serious emergency and to prevent an unnecessary report from being transmitted.

In this embodiment, the speed of the vehicle is divided into three stages of low speed, medium speed and high speed, and the emergency response is changed at each speed. but it may also set a process seems to be the best in each of the speed. For example, very low speed (the speed of human walking)
If it is below, it is determined that the damage is small even if the emergency state of the vehicle is detected, and the seat belt device 16 is
14 may not be operated, and the treatment may be left to the driver's judgment.

Further, in this embodiment, in addition to the seat belt device 16 for protecting the occupant and the airbag system 20 as a vehicle safety device, an automatic braking function of the vehicle by the ABS 14 and a door by operating the door control relay 18 are provided. Automatic lock release function and emergency information transmitter 50
Is provided to ensure the safety of occupants after an emergency. The present embodiment is an example of the present invention, and does not limit the configuration of the vehicle safety device to which the present invention is applied. Any configuration may be used as long as the function is selected and activated according to the speed of the vehicle in an emergency.

[0036]

As it has been described above, according to the present invention, safety for a vehicle according to the present invention
According to the control device, not various occupant protection device according to the vehicle speed
In addition, since the operation of the safety device is set, the occupant is not economically burdened by excessive operation. Also,
It not adequately occupant protection device depending on the situation by work moving a safety device, it ensures an excellent effect capable of ensuring passenger safety.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a schematic configuration of an occupant protection system applied to the present embodiment.

FIG. 2 is a schematic configuration diagram of an ABS applied to the present embodiment.

FIG. 3 is a flowchart showing an example of the operation of the occupant protection system.

[Explanation of symbols]

Reference Signs List 10 Occupant protection system 12 System ECU (control means) 14 ABS (vehicle safety device , safety device ) 16 Preloader type seat belt device (vehicle safety device , occupant protection device ) 18 Door control relay (vehicle safety device, safety device )
20 ) Airbag system (vehicle safety device , occupant protection)
Protection device ) 50 emergency information transmitter (vehicle safety device, safety device) 54 acceleration sensor (acceleration detection means) 56 speed sensor (speed detection means)

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B60R 21/16-21/32 B60R 22/46 G08G 1/16

Claims (1)

(57) [Claims] 1. A vehicle safety control device for controlling operation of a plurality of occupant protection devices including an airbag system and a preloader type seat belt device for protecting an occupant in a vehicle emergency and a safety device for ensuring occupant safety in a vehicle emergency. Speed detection means for detecting a traveling speed of a vehicle; acceleration detection means for detecting a predetermined acceleration in a vehicle emergency; detection of the speed detection means when the acceleration detection means detects a predetermined acceleration Selecting and activating the plurality of occupant protection devices or the safety devices based on the traveling speed of the vehicle to be driven , and at least the traveling speed of the vehicle becomes a predetermined speed.
The airbag system and the
Activate the preloader type seat belt device to drive the vehicle
Preloader type seat when traveling at a low speed below a predetermined speed
Activates the belt device but does not activate the airbag system
Vehicle safety control system according to claim including that a control means for the.