WO2017025019A1

WO2017025019A1 - Automobile passive safety system

Info

Publication number: WO2017025019A1
Application number: PCT/CN2016/094159
Authority: WO
Inventors: 甘忠祥
Original assignee: 甘忠祥
Priority date: 2015-08-11
Filing date: 2016-08-09
Publication date: 2017-02-16
Also published as: CN104999991A

Abstract

An automobile passive safety system comprises: a bendable and deformable front touch web (3) mounted at a front portion of an automobile, a front safety airbag (2) disposed in an automobile bumper, a hood airbag (1) disposed at a bottom surface of a hood (5), an inflatable floor airbag (6) disposed at a floor of the interior of the automobile and an ejectable tail hook (8) and tail rope (10) mounted at a tail of the automobile. The front safety airbag (2) and hood airbag (1) are both inflatable, the hood airbag (1) is disposed at a rear end of the bottom surface of the hood (5), and a rear end of the hood (5) can be pushed upward by the hood airbag (1). The automobile passive safety system can effectively protect pedestrian safety and lower the risk of automobile rollovers and casualty.

Description

Vehicle passive safety system

技术领域 Technical field

The invention relates to the technical field of passive protection of automobiles, in particular to a passive safety system for automobiles.

Background technique

With the development of the automobile industry, the number of cars has increased year by year, and the number of various traffic accidents has also increased. Car accidents caused by pedestrians and casualties caused by car crashes are more common. The existing cars are basically not covered by rollover protection. Structure, the probability of a car accident after a rollover is very high.

For the personal protection of pedestrians on the road, designers and engineers have proposed pedestrian airbags. Pedestrian airbags include two airbags, hood airbags and front airbags. Toyota, Ford and Volvo Cars have also studied pedestrian airbags for many years. Pedestrians The cost and use cost of airbags are much lower than those of in-vehicle airbags. In-vehicle airbags have become popular, but pedestrian airbags cannot be widely used in automobiles because they do not have an effective installation and starting method.

The existing pedestrian airbags are installed by two types of installation methods: one is to install the sensor in the front bumper, and the sensor senses that the pedestrian and the front bumper collide and start the pedestrian airbag, which is not successful because When the pedestrian hits the front bumper, there is no time to open the front airbag to protect it. The other is the active pre-crash control system with on-board radar plus computer calculation and judgment. This method is still immature.

Summary of the invention

In order to solve the defects existing in the prior art, the present invention provides a passive safety system for a vehicle, which can effectively protect pedestrian safety and reduce the risk of car roll injury.

The technical solution adopted by the invention is to design a passive safety system for a vehicle, comprising: a front touch net installed at the front end of the automobile head and being bendable and deformable, a floor air bag installed on the inner floor of the automobile and electrically controllable and deflated, and installation. On the rear of the car, the tail and tail ropes can be electrically controlled.

It also includes: a front airbag installed in the front bumper and a hood airbag provided on the underside of the front hood; the front airbag and the hood airbag can be electrically controlled to charge and deflate, and the hood airbag is set at the front engine The rear end of the cover, the rear end of the front hood can be jacked up by the hood airbag.

Wherein, the front touch net is fixed on the front end of the vehicle head by two front touch net support rods, the front touch net support rod is mounted on the longitudinal axis of the automobile, and the front touch net support rod can be telescopically and flexed forward and backward; the front touch net support rod The utility model comprises: a rod body composed of at least two circular tube end-to-end phase sleeves with different diameters, a spring disposed inside the rod body, and two ends of the spring are fixedly connected with the circular tubes at the ends of the rod body at the ends.

A recess for accommodating the floor airbag is provided on the interior floor of the automobile.

One end of the tail hook is provided with a pulling rope, the tail hook is installed at the rear end of the tail by a tail hook placing cylinder, and the tail hook placing the cylinder opening is fixed rearward at the rear end of the tail, and the pulling rope is sequentially folded and accommodated in the tail hook. The end and the tail hook are placed between the cylinders; the tail hooks are provided with an electric pushing device for ejecting the tail hooks.

The two ends of the tail rope are respectively fixed on both sides of the rear end of the rear end, and the rear end of the rear end is provided with a tail rope receiving cabinet with an opening facing backward, and the tail rope is folded and stored in the tail rope receiving cabinet; the tail rope storage cabinet is provided with The door that is electrically opened, when the door is opened, the tail rope falls out of the tail rope receiving cabinet.

Optimized, gravity blocks are evenly spaced on the tail rope.

In an embodiment, the front airbag and the hood airbag are respectively connected to two electric air inflating devices respectively, and the two electric airbags are controlled to be in an open state by a first control circuit, and the first control circuit comprises: a power source, and a parallel connection power source. The manual switch and the automatic switch assembly at the output end are composed of a series speed control switch and a support rod sensor; two electric air intake devices are connected to the output of the manual switch and the automatic switch assembly.

The floor airbag is independently connected with an electric airing device, and the tail hook and the tail rope are respectively independently connected with two electric pop-up devices, and the electric air-inflating device and the two electric pop-up devices are controlled to be in an open state by a second control circuit, and the second control circuit comprises: The power supply, the manual switch and the rollover sensor connected in parallel to the output of the power supply; the electric air-inflating device and the two electric pop-up devices are connected to the output ends of the manual switch and the rollover sensor.

Compared with the prior art, the front end of the present invention is provided with a front catenary, a front airbag and a hood airbag, which can minimize the impact force of pedestrians, so as to fully ensure the safety of pedestrians. The tail is provided with a tail hook and a tail rope, which can be released when the vehicle is out of control or about to roll over. The tail hook and tail rope can be in contact with the ground and hung on the ground protrusions, reducing the possibility of the vehicle rolling. Reduce the speed of the vehicle. There is a floor airbag inside the car, and the floor airbag can ensure that the car will not sink into the water completely after it falls into the water. The passive safety system of the present invention does not cause any change and influence to the existing automobile structure, can be quickly and widely popularized, and the components of the passive safety system are inexpensive to be used, can be reused without damage, and do not require a computer. Complex control, the entire passive safety system is simple and effective.

DRAWINGS

The present invention will be described in detail below with reference to the embodiments and the accompanying drawings, in which:

Figure 1 is a schematic structural view of a passive safety system for a vehicle;

2 is a schematic diagram of connection of a first control circuit;

Figure 3 is a schematic diagram of the connection of the second control circuit.

具体实施方式 detailed description

As shown in Fig. 1, the existing automobile usually has a pedestrian airbag, and the pedestrian airbag includes a hood airbag 1 and a front airbag 2 The front airbag 2 is installed in the front bumper, and the top surface of the front bumper is provided with an opening, and the front airbag 2 is extended upward from the top of the bumper to the surface of the hood 5 after being inflated. Engine cover airbag 1 Mounted on the underside of the rear end of the front bonnet 5, the rear end of the front hood 5 can be lifted up by the hood airbag 1 to create a buffer space at the engine compartment.

The invention proposes a passive safety system for a vehicle based on the existing pedestrian airbag, comprising: a front touch net 3, a floor air bag 6 and a tail hook 8 , tail rope 10 .

Front touch net 3 Installed on the front of the car, it is made of a material with moderate strength and toughness, which can be bent and deformed to increase the contact area between the front antenna 3 and the pedestrian body after the car hits the pedestrian.

Optimized, front touch net 3 is fixed to the front end of the front by the two front net support rods 4, and the front touch net support rod 4 Mounted on the longitudinal axis of the car, front strut support bar 4 The utility model comprises: a rod body composed of two circular tube end-to-end phase sleeves with different diameters, and a spring disposed inside the rod body, the two ends of the spring are fixedly connected with the circular tubes at the ends of the rod body and the front end, respectively, and the front contact net support rod 4 It can be stretched and flexed back and forth to disperse and cushion the impact of the car on pedestrians.

Further optimized, there is a distance of 40~50 cm between the front touch net 3 and the front bumper to ensure the front touch net support rod 4 There is enough space for contraction and deformation, which also creates time for opening the timely inflation of the pedestrian airbag. Touching the net support rod when not in use 4 It can be electrically contracted so that the front touch net 3 is close to the body, and the front support rod is used during use. 4 Extending forward, the spring in the front stratum support rod 4 is normally extended. The telescopic support of the front catenary support rod 4 can be realized by an electric pump, and the electric pump drive is connected to the front contact net support rod 4 At the inner end, the electric pump can be started to push the front stratum support rod 4 to advance or retreat as a whole. Of course, other methods can be used to control the telescopic effect of the front strut support rod 4.

The floor airbag 6 is mounted on the interior floor of the car, and the interior floor of the car is provided with a recess 7 for accommodating the floor airbag, and the floor airbag 6 When not in use, it is folded and stored in the groove 7. The top surface of the groove 7 is provided with a cover plate, and the bottom of the cover plate is provided with a dark buckle which can cooperate with the side wall of the groove 7. The dark buckle has a certain deformation ability, and the local plate airbag 6 The cover can be popped up when inflated. The airbag 6 is slower than the pedestrian airbag and takes a minute or two to fill. If the car falls into the water, the inflated floor airbag 6 It can guarantee that the car will not sink completely into the water.

The tail hook 8 and the tail rope 10 are mounted on the rear of the car, and the tail hook 8 One end of the tail is provided with a pulling rope, and the rear end of the rear end is fixedly provided with a tail hook placing cylinder 9 provided with an opening facing backward, and the tail hook 8 and the pulling rope are respectively accommodated in the tail hook placing cylinder 9, and the pulling rope is sequentially folded. Placed on the tail hook 8 Between the end and the tail hook placement cylinder 9, the tail hook placement cylinder 9 is provided with an electric pushing device for ejecting the tail hook 8 to control the tail hook 8 to outwardly eject the tail hook placement cylinder 9 . Tail hook 8 with foldable claw hook, tail hook 8 Folded and stored in the tail hook placement cylinder 9 when not in use, the electric pushing device includes a spring and a pin, the bolt can be electrically controlled to be withdrawn from the tail hook placement cylinder 9, and the spring is compressed in the tail hook placement cylinder 9 Between the inner end and the pin, when the pin is withdrawn, the tail hook ejects the tail hook placing cylinder 9 under the restoring force of the spring, and the electric push-pull device can also use other structures. If the car has a rollover in the mountains, the tail hook 8 The object that can be hooked to the bottom surface after being ejected generates a blocking force, and each time the hooked object is blocked by the hooked object, the speed of the vehicle slips is lowered a little, and the tail hook 8 The hook-pull resistance with the ground protrusions can also control the vehicle to not roll, which is beneficial to protect the safety of the people inside the vehicle.

The two ends of the tail rope 10 are respectively fixed on both sides of the rear end of the rear end, and the rear end of the rear end is provided with a tail rope receiving cabinet 11 with an opening facing backward, and the tail rope 10 Folded and stored in the tail rope receiving cabinet 11, the tail rope storage cabinet 11 is provided with an electric door that can be opened electrically, and the tail rope 10 will fall out of the tail rope receiving cabinet when the door is opened. When the car is overturned in the mountainous area, it often breaks some small trees. The broken tree will leave stumps. The tail hook 8 is not easy to hook the stumps, but the tail rope 10 is easily caught by the stumps at the end. Hook 8 and tail rope 10 Together, most of the rollovers can be stopped in advance. Optimized, the gravity block 12 is evenly spaced on the tail rope 10 to increase the weight of the tail rope 10 and let the tail rope 10 Lift the raised object as close as possible to the ground during exercise.

As shown in FIG. 2, in the present embodiment, the front airbag 2 and the hood airbag 1 The electric inflating device is separately connected, and the electric inflating device is controlled to be in an open state by the first control circuit. The first control circuit comprises: a power source, a manual switch and an automatic switch component connected in parallel to the output end of the power source, and the automatic switch is connected by a speed control switch in series and Support rod sensor, front airbag 2 The electric inflator of the hood airbag 1 is connected to the output of the manual switch and the automatic switch assembly, wherein the support rod sensor is mounted on the front antenna support rod 4 Inside. Electric inflators commonly used in automotive safety systems are gas generators.

The specific control process is as follows, the driver starts the car, presses the switch that controls the front support bar 4, and the front touch net 3 follows the front support bar 4 The action is extended forward, and the support bar sensor starts to work. When the running speed of the car reaches the speed range set by the speed control switch, the speed control switch is turned on, assuming that the speed control switch has a speed range set to 15km/h-60km/h, the speed is lower than 15km/h or higher than 60km/h The switch is in the off state. If the support rod sensor senses that a pedestrian hits the front touch net, the support rod sensor turns on the current, and the gas generator gas after the energization is inflated for the airbag, and the airbag has reached the state of protecting the pedestrian before the pedestrian hits the pedestrian airbag. Pedestrians hit the airbag and the damage caused by hitting the car body is much smaller. When the speed is lower than At 15km/h, pedestrians can be protected from large injuries by just touching the net. At this time, the speed control switch is off and the pedestrian airbag does not automatically open. When the speed is higher than 60km/h When the speed is too fast, the pedestrian will hit the front net, and the front touch net support rod 4 The compression time is less than the time required for the pedestrian airbag to open. At this time, the automatic control reaction will be slower and will not function. Therefore, when the speed control switch is disconnected at high speed, it is manually controlled by the driver. Pressing the manual switch ensures the pedestrian airbag. Can be opened in time.

As shown in Fig. 3, in the present embodiment, the floor airbag 6 is also independently connected with an electric airing device, a tail hook 8 and a tail rope 10 Two electric ejecting devices are separately connected, and the electric ejecting device of the tail hook 8 is an electric push-pull device, and the tail rope 10 The electric pop-up device is the cabinet door. The electric air inflating device, the electric push-pull device and the cabinet door are all controlled by the second control circuit, and the second control circuit comprises: a power source, a manual switch and a rollover sensor connected in parallel to the output end of the power source. The electric inflator, the electric push-pull device and the cabinet door are connected to the output of the manual switch and the rollover sensor.

At the moment when the vehicle is out of control or about to roll over, the driver decides whether to press the switch according to the specific road conditions, inflating the floor airbag 6 and ejecting the tail hook. And releasing the tail rope 10 . In most cases, the driver has time to press the switch. When the driver does not press the switch, after the car has a first collision with the ground, the automatic mode system of the rollover sensor will activate the switch to the floor airbag. Inflate, eject the tail hook 8 and release the tail rope 10 .

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. Within the scope.

Claims

The utility model relates to a passive safety system for a vehicle, which comprises: a front touch net which is installed at the front end of the automobile head and which is bendable and deformable, a floor air bag which is installed on the inner floor of the automobile and can be electrically controlled to be charged and discharged, and is installed on the rear of the automobile and can be The electric control pops the tail hook and tail rope.
Claims 1 The vehicle passive safety system further includes: a front airbag disposed in the front bumper; and a hood airbag disposed on a bottom surface of the front hood;

The front airbag and the hood airbag can electrically control the charging and discharging air, the engine cover airbag is disposed on the rear end bottom surface of the front engine cover, and the rear end of the front engine cover can be jacked up by the engine cover airbag.
Claims 1 The vehicle passive safety system is characterized in that the front antenna is fixed to the front end of the vehicle head by two front contact net support rods, and the front antenna support rod is mounted on the longitudinal axis of the automobile, and the front touch net supports The rod can be stretched and bent forward and backward;

The front stratum support rod comprises: a rod body composed of at least two circular tube end-to-end phase sleeves having different diameters, a spring disposed inside the rod body, and two ends of the spring are respectively fixedly connected with the circular tubes at the ends of the rod body .
The automotive passive safety system of claim 1 wherein the interior floor of the vehicle is provided with a recess for receiving a floor airbag.
Claims 1 The vehicle passive safety system is characterized in that: one end of the tail hook is provided with a pulling rope, and the tail hook is installed at a rear end of the tail by a tail hook placing cylinder, and the tail hook placing the cylinder opening is fixed rearward a rear end of the tail, the pulling rope is arranged in an orderly fold between the end of the tail hook and the tail hook placing cylinder;

The tail hook placing cylinder is provided with an electric pushing device capable of ejecting the tail hook.
Claims 1 The vehicle passive safety system is characterized in that: two ends of the tail rope are respectively fixed on two sides of the rear end of the tail, and a rear end of the rear end is provided with a tail rope receiving cabinet with an opening facing backward, and the tail rope is folded Included in the tail rope receiving cabinet;

The tail rope storage cabinet is provided with an electric door that can be electrically opened, and the tail rope falls out of the tail rope receiving cabinet when the door is opened.
The passive safety system for a vehicle according to claim 6, wherein the tail rope is uniformly spaced with a gravity block.
Claims 2 The vehicle passive safety system is characterized in that the front airbag and the hood airbag are respectively connected to two electric airing devices independently, and the two electric airbags are controlled by the first control circuit to open state, the first control circuit The utility model comprises: a power source, a manual switch connected in parallel to the output end of the power source and an automatic switch assembly, wherein the automatic switch is composed of a series speed control switch and a support rod sensor;

The two electric inflators are both connected to the output of the manual switch and the automatic switch assembly.
Claims 2 The vehicle passive safety system is characterized in that: the floor airbag is independently connected with an electric airing device, and the tail hook and the tail rope are respectively independently connected with two electric pop-up devices, and the electric air-inflating device and the two electric pop-up devices are respectively The second control circuit controls the open state, and the second control circuit comprises: a power source, a manual switch and a rollover sensor connected in parallel to the output end of the power source;

The electric inflator and the two electric ejecting devices are both connected to the output of the manual switch and the rollover sensor.