CN216443541U - Safe driving auxiliary device - Google Patents
Safe driving auxiliary device Download PDFInfo
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- CN216443541U CN216443541U CN202122658861.7U CN202122658861U CN216443541U CN 216443541 U CN216443541 U CN 216443541U CN 202122658861 U CN202122658861 U CN 202122658861U CN 216443541 U CN216443541 U CN 216443541U
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Abstract
The present invention relates to a safe driving assistance device, including: the device comprises a distance measuring sensor, an electronic controller, a warning indicator and a seat regulator; the distance measuring sensor is arranged near the safety airbag detonation area, starts to operate along with the start of the automobile, and measures the distance value between the passenger and the safety airbag detonation area in real time; the electronic controller determines the danger level according to the distance value and generates a corresponding warning signal; on one hand, the alarm warns the passengers according to the warning signals, so that the warning heart of the passengers is improved, and the body safety of the passengers is protected; on the other hand, the seat of the passenger is adjusted according to the warning signal, so that the problem that the passenger is inclined forwards due to inertia to be too close to the detonation zone of the safety airbag when the passenger is in emergency stop and is further injured by the impact force generated when the safety airbag is detonated is solved.
Description
Technical Field
The utility model relates to the field of safe driving, in particular to a safe driving auxiliary device.
Background
The emergence of the safety air bag greatly reduces the accident casualty rate of passengers during automobile accidents, and statistical data shows that the effective rate of using the safety belt only is 43-49%, and the protection rate of using the safety belt and the air bag to protect the passengers is improved to 60%. Researches show that the death rate of drivers is reduced by 30 percent for a large car, 11 percent for a medium car and 14 percent for a small car when the cars with the air bag devices are in frontal collision. However, the explosion of the air bag is accompanied by huge impact force, which often damages passengers, and in 1995, the US 829 traffic accidents of the deployment of the air bags in the US were reported by the US expressway safety insurance research institute, and 43% of the accidents have at least one damage caused by the air bag; the NHTSA organization investigated in 1996 identified 99 air-bag-induced deaths, the victims of which were mainly out-of-position children and drivers.
If the automobile runs on a road and is involved in dangerous AEB, the automobile has higher deceleration, at the moment, because of inertia, a passenger can lean forwards to further cause an off-position state, and if the face of the passenger and the like are too close to the installation point of the safety airbag, the explosion of the safety airbag can cause great damage to the head of the person in an accident. Through simulation calculation, the fact that when the distance between the face of a passenger and the installation distance of the safety airbag is smaller than 300mm, the larger damage risk exists is obtained. If it is not possible to ensure that the distance of the occupant from the initiation zone of the airbag is outside of safe distances, the occupant may be seriously injured from the airbag in an accident. Therefore, it is necessary to provide a safe driving support device that adjusts the seating distance of an occupant in an emergency and protects the occupant from being excessively close to an airbag by forward tilting due to inertia when the occupant is stopped in an emergency and from being damaged by impact force when the airbag is detonated.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a safe driving auxiliary device which is simple and reasonable in structure, can remind a passenger of keeping a habit of keeping a distance from an explosion area of an air bag in a normal driving process, and can protect the passenger from being injured by impact force generated when the air bag is exploded due to inertia forward tilting in emergency by adjusting the seat distance of the passenger in emergency.
In order to achieve the purpose, the utility model provides the following scheme:
a safe driving assistance device applied to a vehicle with an AEB system, the assistance device comprising:
the distance measuring sensor is arranged in the safety airbag detonation zone and used for measuring a distance value between the head of the passenger and the safety airbag detonation zone to generate a distance value signal;
the electronic controller is connected with the output end of the distance measuring sensor and is used for generating a corresponding warning signal according to the distance value signal;
the alarm is connected with the output end of the electronic controller and used for alarming passengers according to the alarm signal;
and the seat adjuster is arranged at the bottom of the passenger seat, is connected with the electronic controller and adjusts the passenger seat according to the warning signal.
Optionally, the electronic controller comprises:
the first comparator simulates a distance value signal with an input end accessed to the ranging sensor, and a reference input end accessed to a first safety range minimum value signal, is used for judging whether the distance value is smaller than the first safety range minimum value or not, and outputs a high level or a low level;
the analog input end of the second comparator is accessed to a distance value signal of the distance measuring sensor, the reference input end is accessed to a first safety range minimum value signal, and the second comparator is used for judging whether the distance value is larger than the first safety range minimum value or not and outputting a high level or a low level;
the analog input end of the third comparator is accessed to a distance value signal of the distance measuring sensor, the reference input end is accessed to a first safety range maximum value signal, and the third comparator is used for judging whether the distance value is smaller than the first safety range maximum value or not and outputting a high level or a low level;
two input ends of the first AND circuit are respectively connected to the output ends of the second comparator and the third comparator;
the analog input end of the fourth comparator is connected with a distance value signal of the distance measuring sensor, and the reference input end of the fourth comparator is respectively connected with a second safety range minimum value signal for judging whether the distance value is greater than the second safety range minimum value or not and outputting a high level or a low level;
the analog input end of the fifth comparator is accessed to a distance value signal of the distance measuring sensor, and the reference input end of the fifth comparator is respectively accessed to a second safety range maximum value signal for judging whether the distance value is smaller than the second safety range maximum value or not and outputting a high level or a low level;
two input ends of the second AND circuit are respectively connected to the output ends of the fourth comparator and the fifth comparator;
and the input end of the control chip is respectively connected with the output ends of the first comparator, the first AND gate circuit and the second AND gate circuit and is used for generating corresponding first warning signals, second warning signals or third warning signals.
Optionally, the seat adjuster further comprises a seventh comparator, a relay and a seat transmission mechanism which are connected in series;
the simulation input end of the seventh comparator is connected to the collision time signal output end of the AEB system, and the reference input end of the seventh comparator is connected to the safe braking time signal, so that whether the collision time signal is smaller than the safe braking time signal or not is judged, and a high level or a low level is output;
the input end of the relay is connected with the output end of the seventh comparator, and the seat transmission mechanism is switched on or off according to the output level of the seventh comparator;
the seat transmission mechanism is used for controlling the backward movement of the seat of the passenger by a preset distance.
Optionally, the warning indicator includes a warning light and a loudspeaker;
the warning lamp is arranged at a position where the passenger is obvious and used for reminding the passenger of keeping a safe distance from the steering wheel by colored light;
and the loudspeaker is arranged at the position without a shielding object between the loudspeaker and the passenger and is used for reminding the passenger to keep a safe distance with the steering wheel by preset warning voice.
According to the specific embodiment provided by the utility model, the following technical effects are disclosed: the utility model provides a safe driving assistance device including: the device comprises a distance measuring sensor, an electronic controller, a warning indicator and a seat adjuster; the distance measuring sensor is arranged near the explosion area of the safety airbag, starts to operate along with the start of the automobile and measures the distance value between the passenger and the explosion area of the safety airbag in real time; the electronic controller generates a corresponding warning signal according to the distance value; on one hand, the alarm warns the passengers according to the warning signals, so that the vigilance of the passengers is improved, and the body safety of the passengers is protected; on the other hand, the seat of the passenger is adjusted according to the warning signal, so that the problem that the passenger is too close to the detonation zone of the safety airbag due to forward tilting of inertia when the passenger is in emergency stop and is further injured by the impact force generated when the safety airbag is detonated is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a safe driving assistance device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a safe driving assistance device according to a second embodiment of the present invention.
Symbol interpretation:
1: a ranging sensor; 2: an electronic controller; 3: an alarm; 4: a seat adjuster; 5: an AEB system.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The utility model aims to provide a safe driving auxiliary device which is simple and reasonable in structure, can remind a passenger of keeping a habit of keeping a distance from an explosion area of an air bag in a normal driving process, and can protect the passenger from being injured by impact force generated when the air bag is exploded due to inertia forward tilting in emergency by adjusting the seat distance of the passenger in emergency.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The first embodiment is as follows:
as shown in fig. 1, the present invention provides a safe driving assistance device including:
the distance measuring sensor 1 is arranged near the safety airbag detonation zone and used for measuring a distance value between the head of a passenger and the safety airbag detonation zone and generating a distance value signal;
the electronic controller 2 is connected with the output end of the distance measuring sensor 1 and used for generating a corresponding warning signal according to the distance value signal;
in this embodiment, the electronic controller 2 specifically includes: the comparator comprises a first comparator, a second comparator, a third comparator, a fourth comparator, a fifth comparator, a sixth comparator, a first AND gate circuit, a second AND gate circuit and a control chip;
the analog input end of the first comparator is accessed to a distance value signal of the distance measuring sensor 1, the reference input end is accessed to a first safety range minimum value signal, the first safety range minimum value signal is used for judging whether the distance value is smaller than or equal to a first safety range minimum value, and a high level or a low level is output; through simulation calculation, the fact that the face of the passenger has a larger damage risk when the installation distance from the safety airbag is smaller than 300mm is obtained, so the minimum value of the first safety range is set as 300mm in the embodiment; when the distance value is less than or equal to 300mm, the first comparator outputs a high level, otherwise, a low level is output;
the analog input end of the second comparator is accessed to a distance value signal of the distance measuring sensor 1, the reference input end is accessed to a first safety range minimum value signal, and the second comparator is used for judging whether the distance value is larger than the first safety range minimum value or not and outputting a high level or a low level; when the distance value is larger than 300mm, the second comparator outputs a high level, otherwise, a low level is output;
the analog input end of the third comparator is accessed to a distance value signal of the distance measuring sensor 1, the reference input end is accessed to a first safety range maximum value signal, the distance value signal is used for judging whether the distance value is smaller than or equal to the first safety range maximum value, and high level or low level is output; through simulation calculation, the injury to the face of the passenger is obviously changed when the distance is 350mm, so the maximum value of the first safety range is set to be 350mm in the embodiment, when the distance value is smaller than or equal to 350mm, the third comparator outputs a high level, otherwise, the third comparator outputs a low level;
two input ends of the first AND circuit are respectively connected with output ends of the second comparator and the third comparator; when the second comparator and the third comparator both output high levels, the first AND gate circuit outputs the high levels, namely the distance value belongs to a first safety range;
the analog input end of the fourth comparator is connected with a distance value signal of the distance measuring sensor 1, and the reference input end of the fourth comparator is respectively connected with a second safety range minimum value signal for judging whether the distance value is greater than the second safety range minimum value or not and outputting a high level or a low level; the second safety range is close to the first safety range, the minimum value is set to be 350mm, when the distance value is larger than 350mm, the fourth comparator outputs high level, otherwise, low level is output;
the analog input end of the fifth comparator is accessed to a distance value signal of the distance measuring sensor 1, and the reference input end of the fifth comparator is respectively accessed to a second safety range maximum value signal for judging whether the distance value is less than or equal to the second safety range maximum value or not and outputting a high level or a low level; through simulation calculation, when the distance between the face of the passenger and the detonation zone of the safety airbag is greater than 400mm during collision, no obvious damage can be caused, in the embodiment, the maximum value of the second safety range is set to be 400mm, when the distance value is less than or equal to 400mm, the fifth comparator outputs a high level, otherwise, a low level is output;
two input ends of the second AND circuit are respectively connected with output ends of the fourth comparator and the fifth comparator; when the fourth comparator and the fifth comparator both output high levels, the second AND gate circuit outputs the high levels, namely the distance value belongs to a second safety range;
and the input end of the control chip is respectively connected with the output ends of the first comparator, the first AND gate circuit and the second AND gate circuit, a first warning signal is generated when the first comparator generates a high level signal, a second warning signal is generated when the first AND gate circuit generates a high level signal, and a third warning signal is generated when the second AND gate circuit generates a high level signal.
The alarm 3 is connected with the output end of the electronic controller 2 and used for alarming passengers according to the alarm signal;
in order to enable a passenger to keep a safe distance from an explosion area of the safety airbag during driving, the passenger is warned in an acousto-optic mode, and the warning indicator 3 comprises a warning lamp and a loudspeaker in the embodiment;
the warning lamp is arranged at a position where the passenger is striking and used for reminding the passenger of keeping a safe distance from the steering wheel by colored light;
if the electronic controller 2 generates the first warning signal, the warning lamp reminds the passengers with red light; if the electronic controller generates a second warning signal, the warning lamp reminds the passengers with orange light; if the electronic controller generates a third warning signal, the warning lamp reminds passengers with yellow light;
correspondingly, the loudspeaker is arranged at a position without a shielding object between the loudspeaker and the passenger, and is used for reminding the passenger of keeping a safe distance from the steering wheel by preset warning voice.
And the seat adjuster 4 is arranged at the bottom of the passenger seat, is connected with the electronic controller 2, and adjusts the passenger seat backwards when the electronic controller 2 outputs a first warning signal, so that the face of the passenger and the detonation area of the safety airbag keep a sufficient safety distance.
The safe driving auxiliary device provided in the embodiment comprises a distance measuring sensor 1, an electronic controller 2, a warning indicator 3 and a seat adjuster 4; the distance measuring sensor 1 is arranged near the explosion area of the safety airbag, starts to operate along with the start of an automobile, and measures the distance value between a passenger and the explosion area of the safety airbag in real time; the electronic controller 2 generates a corresponding warning signal according to the distance value; on one hand, the alarm 3 warns passengers and improves the vigilance of the passengers; on the other hand, the condition that the passenger seat is adjusted according to the warning signal, the situation that the passenger is easily injured by the impact force during the explosion of the safety airbag due to the fact that the passenger is too close to the explosion area of the safety airbag can be reduced.
The second embodiment:
as shown in fig. 2, the embodiment of the present invention is substantially the same as the embodiment of the present invention, except that: the use of a safety driving assistance device in a motor vehicle with an AEB system 5;
correspondingly, a seventh comparator, a relay and a seat transmission mechanism which are connected in series are further included in the seat adjuster 4;
the simulation input end of a seventh comparator is connected to the collision time signal output end of the AEB system 5, and the reference input end of the seventh comparator is connected to a safe braking time signal, and is used for judging whether the collision time signal is smaller than the safe braking time signal or not and outputting a high level or a low level; through simulation calculation, when the impact time TTC signal calculated by the AEB system 5 is less than 1 second, the passenger may make a braking action without successfully preventing the occurrence of the impact, so in this embodiment, the safe braking time signal is set to 1s, when the impact time signal TTC is less than 1 second, that is, the impact is certainly generated, the seventh comparator outputs a high level, otherwise, a low level is output;
the input end of the relay is connected with the output end of the seventh comparator, and the seat transmission mechanism is switched on or off according to the output level of the seventh comparator; when the seventh comparator outputs a high level, the relay is switched on, the seat transmission mechanism can work, otherwise, the relay is in a switching-off state;
the seat transmission mechanism is used for controlling the seat of the passenger to move backwards for a preset distance, so that the face of the passenger and the detonation zone of the safety airbag keep a sufficient safety distance.
The safe driving auxiliary device provided in the embodiment is limited to be applied to an automobile with an AEB system 5 on the basis of the scheme of the embodiment; the passenger seat is adjusted according to the warning signal of the electronic controller 2 and the collision time signal of the AEB system 5, so that the problem that when emergency stop occurs, a passenger is too close to the explosion area of the safety airbag due to forward leaning of inertia, and is further injured by the impact force generated when the safety airbag is exploded is solved.
In the description, various embodiments are described in a progressive mode, each embodiment focuses on differences from other embodiments, and the same and similar parts among the various embodiments are referred to each other.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the utility model.
Claims (4)
1. A safe driving assistance apparatus characterized by comprising:
the distance measuring sensor is arranged near the safety airbag detonation zone and used for measuring a distance value between the head of the passenger and the safety airbag detonation zone to generate a distance value signal;
the electronic controller is connected with the output end of the distance measuring sensor and is used for generating a corresponding warning signal according to the distance value signal;
the alarm is connected with the output end of the electronic controller and used for alarming passengers according to the alarm signal;
and the seat adjuster is arranged at the bottom of the passenger seat, is connected with the electronic controller and adjusts the passenger seat according to the warning signal.
2. The safe driving assistance apparatus according to claim 1, characterized in that the electronic controller includes:
the first comparator simulates a distance value signal with an input end accessed to the ranging sensor, and a reference input end accessed to the first safety range minimum value signal, is used for judging whether the distance value is less than or equal to the first safety range minimum value or not and outputting a high level or a low level;
the second comparator simulates a distance value signal with an input end accessed to the ranging sensor, and a reference input end accessed to the first safety range minimum value signal, and is used for judging whether the distance value is greater than the first safety range minimum value or not and outputting a high level or a low level;
the third comparator simulates a distance value signal with an input end accessed to the ranging sensor, and a reference input end accessed to the first safety range maximum value signal, is used for judging whether the distance value is less than or equal to the first safety range maximum value or not, and outputs high level or low level;
two input ends of the first AND circuit are respectively connected to the output ends of the second comparator and the third comparator;
the analog input end of the fourth comparator is connected with a distance value signal of the distance measuring sensor, the reference input end of the fourth comparator is respectively connected with a second safety range minimum value signal, and the fourth comparator is used for judging whether the distance value is larger than the second safety range minimum value or not and outputting a high level or a low level;
the analog input end of the fifth comparator is connected with a distance value signal of the distance measuring sensor, the reference input end of the fifth comparator is respectively connected with a second safety range maximum value signal, the fifth comparator is used for judging whether the distance value is less than or equal to the second safety range maximum value or not and outputting a high level or a low level;
two input ends of the second AND circuit are respectively connected to the output ends of the fourth comparator and the fifth comparator;
and the input end of the control chip is respectively connected with the output ends of the first comparator, the first AND gate circuit and the second AND gate circuit and is used for generating corresponding first warning signals, second warning signals or third warning signals.
3. The safe driving assistance device according to claim 2, wherein the safe driving assistance device is applied to a vehicle with an AEB system, and the seat adjuster further comprises a seventh comparator, a relay and a seat transmission mechanism connected in series;
the simulation input end of the seventh comparator is connected to the collision time signal output end of the AEB system, and the reference input end of the seventh comparator is connected to the safe braking time signal, so that whether the collision time signal is less than or equal to the safe braking time signal or not is judged, and a high level or a low level is output;
the input end of the relay is connected with the output end of the seventh comparator, and the seat transmission mechanism is switched on or off according to the output level of the seventh comparator;
the seat transmission mechanism is used for controlling the backward movement of the passenger seat.
4. The safe driving assistance apparatus according to claim 1, wherein the warning indicator includes a warning lamp and a microphone;
the warning lamp is arranged at a position where the passenger is obvious and used for reminding the passenger of keeping a safe distance from the steering wheel by colored light;
the loudspeaker is arranged at a position without a shielding object between the loudspeaker and the passenger and used for reminding the passenger of keeping a safe distance from the steering wheel by warning voice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122658861.7U CN216443541U (en) | 2021-11-02 | 2021-11-02 | Safe driving auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122658861.7U CN216443541U (en) | 2021-11-02 | 2021-11-02 | Safe driving auxiliary device |
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| Publication Number | Publication Date |
|---|---|
| CN216443541U true CN216443541U (en) | 2022-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122658861.7U Active CN216443541U (en) | 2021-11-02 | 2021-11-02 | Safe driving auxiliary device |
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| CN (1) | CN216443541U (en) |
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2021
- 2021-11-02 CN CN202122658861.7U patent/CN216443541U/en active Active
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