CN114572143A - Automobile rollover prevention device and control method thereof - Google Patents
Automobile rollover prevention device and control method thereof Download PDFInfo
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- CN114572143A CN114572143A CN202210248348.7A CN202210248348A CN114572143A CN 114572143 A CN114572143 A CN 114572143A CN 202210248348 A CN202210248348 A CN 202210248348A CN 114572143 A CN114572143 A CN 114572143A
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- automobile
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- air
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- storage tank
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- 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
- B60R21/13—Roll-over protection
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- 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
-
- 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
- B60R2021/01013—Means for detecting collision, impending collision or roll-over
-
- 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
- B60R2021/01306—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 monitoring vehicle inclination
Abstract
The invention discloses an automobile rollover prevention device and a control method thereof. The control system collects the automobile body roll angle signals collected by the sensor, performs system work identification, judges whether the automobile body roll angle exceeds a set value, and determines whether the mechanical execution system works or not by controlling the opening and closing of the pilot electromagnetic valve. The invention has simple structure, small occupied space and quick response, effectively realizes the function of preventing side turning and ensures the driving safety of the automobile.
Description
Technical Field
The invention belongs to the field of automobile active safety, and particularly relates to an automobile rollover prevention device and a control method thereof.
Background
Statistical data of the U.S. highway traffic safety administration show that the degree of damage of a rollover accident of a car is second to a collision accident of the car in all traffic accidents. In 2003, a total of 1100 automobiles in the United states have traffic accidents, wherein the rate of property loss caused by the rollover accidents of the automobiles is 1.3%, the severe damage rate is 4.9%, and the death rate accounts for 20%. And the degree of harm caused by the rollover accident of the automobile is increased in 2005. The rate of property loss caused by the automobile rollover accident is 1.3%, while the serious damage rate is 5.3%, and the death rate is 21.1%. In addition, the rollover of the automobile can cause road traffic interruption and environmental pollution. In recent years, with the rapid development of the transportation industry in China, the number of major traffic accidents caused by the rollover of automobiles is increasing. The rollover of automobiles has become a safety issue of concern worldwide. Therefore, the analysis and research on the rollover problem of the automobile, the improvement of the rollover resistance of the automobile and the reduction of the occurrence of rollover accidents have become the focus of the automobile research in the world in recent years.
The rollover prevention supporting device of the automobile mainly comprises an air bag type supporting device and a supporting leg type supporting device, wherein the prior supporting devices are provided with the following types:
the airbag type supporting device supports the rollover of the vehicle through an airbag arranged below a chassis of the vehicle. The method has a small application range, can only play a role in buffering, and cannot play a role in supporting the vehicle to prevent the vehicle from rolling over. Firstly, the air bag type supporting device arranged below the chassis can be rapidly expanded when a vehicle turns on one side, and can play a certain role in buffering. However, due to the compressibility of gas, the device cannot bear the weight of the automobile, and cannot achieve the purpose of supporting. Secondly, the normal running of vehicles on adjacent lanes can be influenced by overlarge airbag type supporting devices arranged on the two sides of the tank body. The design of rigor and luxury and the like provides an angle-adjustable air-injection anti-rollover device (publication number: 9N208544347U), but the injected air is not easy to control, and the anti-rollover effect is not ideal.
The second one is a supporting leg type supporting device, which is a vertical telescopic supporting leg type supporting device and a lateral horizontal telescopic supporting leg type supporting device. The telescopic supporting leg type supporting device is characterized in that a telescopic vertical supporting leg is arranged below a chassis, and when a vehicle turns on one side, the supporting leg extends out to provide supporting force for the vehicle. However, the device has too low reaction speed and can not extend out of the supporting legs in time, so that the anti-rollover supporting effect is not ideal. The invention relates to a side turning supporting device of a liquid tank truck and a control method thereof (publication number: 9N109677317), which is designed in evergreen and other inventions, and is a combination of a vertical telescopic supporting leg and a horizontal telescopic supporting leg, so that the problem that the existing device can not realize supporting when the vehicle side inclination angle is too small or too large is solved, but the telescopic process is slow, and the device reaction is not rapid enough.
Disclosure of Invention
The invention aims to solve the technical problems that the existing automobile rollover prevention device is slow in response, cannot provide rollover prevention emergency for an automobile in time, has high redundancy cost, is large in size and is difficult to install in a passenger automobile, and the like, and provides the automobile rollover prevention device and the control method thereof.
The invention adopts the following technical scheme for solving the technical problems:
an automobile rollover prevention device comprises a motor, an air compressor, a high-pressure air storage tank, a pressure sensor, a pilot electromagnetic valve, a gyroscope sensor, a control module, an air cylinder, a fixed seat, a guide plate, a slide bar, a spring and a pulley;
the fixed seat is fixed below a chassis of the automobile;
the guide plate is a cuboid and is arranged in a direction perpendicular to the automobile body, one end of the guide plate is fixedly connected with the fixed seat, and the included angle between the upper end face and the automobile chassis is a preset angle threshold value;
the upper end surface of the guide plate is provided with a sliding chute perpendicular to the direction of the vehicle body, and the sliding chute penetrates through the guide plate; the sliding rod is arranged in the sliding groove of the guide plate and can freely slide along the sliding groove, and a baffle protruding from the sliding groove is arranged on the side wall of the sliding rod;
the spring is arranged in the sliding groove of the guide plate, one end of the spring is fixedly connected with the fixed seat, and the other end of the spring is fixedly connected with one end of the sliding rod close to the fixed seat; the pulley is arranged at one end of the sliding rod, which is far away from the fixed seat, and is used for contacting the ground;
the air cylinder is fixed below a chassis of the automobile, and a piston rod of the air cylinder is in an extending state and abuts against a baffle plate on the sliding rod, so that the spring is in a compressed state;
the gyroscope sensor is arranged below a chassis of the automobile and used for measuring the roll angle of the automobile and transmitting the roll angle to the control module;
the pressure sensor is arranged in the high-pressure air storage tank and used for measuring the air pressure in the high-pressure air storage tank and transmitting the air pressure to the control module;
the high-pressure gas storage tank is connected with the cylinder pipeline through the pilot electromagnetic valve and is used for driving the cylinder to work;
the motor is used for driving the air compressor to provide compressed gas for the high-pressure gas storage tank;
the control module is respectively electrically connected with the gyroscope sensor, the pressure sensor, the motor and the pilot electromagnetic valve and is used for controlling the motor and the pilot electromagnetic valve to work according to the sensing data of the gyroscope sensor and the pressure sensor.
As a further optimization scheme of the automobile rollover prevention device, the preset angle threshold is 3 degrees.
The invention also discloses a control method of the automobile rollover prevention device, which comprises the following steps:
step 1), a pressure sensor measures the air pressure in a high-pressure air storage tank and transmits the air pressure to a control module;
step 2), the control module compares the air pressure in the high-pressure air storage tank with the preset air pressure threshold, if the air pressure in the high-pressure air storage tank is smaller than the preset air pressure threshold, the control module controls the motor to work to drive the air compressor to provide compressed air for the high-pressure air storage tank until the air pressure in the high-pressure air storage tank is equal to the preset air pressure threshold;
step 3), a gyroscope sensor measures the roll angle of the automobile and transmits the roll angle to the control module;
step 4), the control module compares the roll angle of the automobile with the preset angle threshold, and if the roll angle of the automobile is larger than the preset angle threshold:
step 4.1), the control module controls the pilot electromagnetic valve to work, and drives a piston rod of the air cylinder to retract, so that the sliding rod is popped out from a sliding groove of the guide plate under the action of the spring, and the pulley is in contact with the ground;
and 4.2), the control module controls the pilot electromagnetic valve to work, a piston rod of the driving air cylinder extends out to abut against the sliding rod to enable the piston rod to be fixed in the sliding groove, the sliding rod transmits force to the automobile body, the supporting effect is achieved, and the automobile is prevented from turning on one side.
As a further optimization scheme of the control method of the automobile rollover prevention device, the length of the sliding rod
In the formula, k is the elastic coefficient of the spring, x is the deformation of the spring when the spring is compressed, m is the mass of the slide bar, and t is the preset slide bar ejecting time.
Compared with the prior art, the invention adopting the technical scheme has the following beneficial effects:
(1) simple structure easily installs: the invention has simple structure, and is provided with a single driving device, thereby reducing the complexity of the device;
(2) safe and reliable: the high-pressure air storage tank in the device can be shared with the air storage tank inherent to the vehicle body, so that additional installation is not needed, and unnecessary risks are reduced;
(3) the device reacts rapidly: the spring is used as a power source of the slide bar, so that the ejection speed of the slide bar can be effectively guaranteed, and the slide bar can be ejected in time when the automobile is damaged by side inclination;
(4) the cost is low: the additional devices required for automobile installation are few and easy to obtain, and the use cost of the device is effectively reduced.
Drawings
Fig. 1 is a schematic structural view of the rollover prevention device for an automobile according to the present invention.
In the figure, 1-a piston rod of an air cylinder, 2-an automobile frame, 3-a pulley, 4-a slide rod, 5-a guide plate, 6-a fixed seat, 7-a motor, 8-an air compressor, 9-a high-pressure air storage tank, 10-a pressure sensor, 11-a pilot electromagnetic valve and 12-an air cylinder.
Detailed Description
The technical scheme of the invention is further explained in detail by combining the drawings as follows:
the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, components are exaggerated for clarity.
As shown in fig. 1, the invention discloses an automobile rollover prevention device, which comprises a motor, an air compressor, a high-pressure air storage tank, a pressure sensor, a pilot electromagnetic valve, a gyroscope sensor, a control module, an air cylinder, a fixed seat, a guide plate, a slide bar, a spring and a pulley, wherein the air cylinder is arranged on the guide plate;
the fixed seat is fixed below a chassis of the automobile;
the guide plate is a cuboid and is arranged in a direction perpendicular to the automobile body, one end of the guide plate is fixedly connected with the fixed seat, and the included angle between the upper end face and the automobile chassis is a preset angle threshold value;
the upper end surface of the guide plate is provided with a sliding chute perpendicular to the direction of the vehicle body, and the sliding chute penetrates through the guide plate; the sliding rod is arranged in the sliding groove of the guide plate and can freely slide along the sliding groove, and a baffle protruding from the sliding groove is arranged on the side wall of the sliding rod;
the spring is arranged in the sliding groove of the guide plate, one end of the spring is fixedly connected with the fixed seat, and the other end of the spring is fixedly connected with one end of the sliding rod close to the fixed seat; the pulley is arranged at one end of the sliding rod, which is far away from the fixed seat, and is used for contacting the ground;
the air cylinder is fixed below a chassis of the automobile, and a piston rod of the air cylinder is in an extending state and abuts against a baffle plate on the sliding rod, so that the spring is in a compressed state;
the gyroscope sensor is arranged below a chassis of the automobile and used for measuring the roll angle of the automobile and transmitting the roll angle to the control module;
the pressure sensor is arranged in the high-pressure air storage tank and used for measuring the air pressure in the high-pressure air storage tank and transmitting the air pressure to the control module;
the high-pressure gas storage tank is connected with the cylinder pipeline through the pilot electromagnetic valve and is used for driving the cylinder to work;
the motor is used for driving the air compressor to provide compressed gas for the high-pressure gas storage tank;
the control module is respectively electrically connected with the gyroscope sensor, the pressure sensor, the motor and the pilot electromagnetic valve and is used for controlling the motor and the pilot electromagnetic valve to work according to the sensing data of the gyroscope sensor and the pressure sensor.
The invention also discloses a control method of the automobile rollover prevention device, which comprises the following steps:
step 1), a pressure sensor measures the air pressure in a high-pressure air storage tank and transmits the air pressure to a control module;
step 2), the control module compares the air pressure in the high-pressure air storage tank with the preset air pressure threshold, if the air pressure in the high-pressure air storage tank is smaller than the preset air pressure threshold, the control module controls the motor to work to drive the air compressor to provide compressed air for the high-pressure air storage tank until the air pressure in the high-pressure air storage tank is equal to the preset air pressure threshold;
step 3), a gyroscope sensor measures the roll angle of the automobile and transmits the roll angle to the control module;
step 4), the control module compares the roll angle of the automobile with the preset angle threshold, and if the roll angle of the automobile is larger than the preset angle threshold:
step 4.1), the control module controls the pilot electromagnetic valve to work, and drives a piston rod of the air cylinder to retract, so that the sliding rod is popped out from a sliding groove of the guide plate under the action of the spring, and the pulley is in contact with the ground;
and 4.2), the control module controls the pilot electromagnetic valve to work, a piston rod of the driving air cylinder extends out to abut against the sliding rod to enable the piston rod to be fixed in the sliding groove, and the sliding rod transmits force to the automobile body, so that the supporting effect is realized, and the automobile is prevented from side turning.
Length of sliding rod
In the formula, k is the elastic coefficient of the spring, x is the deformation of the spring when the spring is compressed, m is the mass of the slide bar, and t is the preset slide bar ejecting time.
When the automobile is turned over on one side in different states, the required slide bars are different in length, the length is too short, the purpose of supporting cannot be achieved, the device can be damaged under further side turning impact, and if the length is too short, the slide bars cannot be clamped by the piston rods of the air cylinders, and the supporting effect cannot be achieved; if the length is too long, the sliding rod can influence the whole automobile running of the automobile. Therefore, in order to ensure the driving performance of the automobile and enable the side-turning support of the automobile to be more stable, the bearing guide plate is horizontally inclined downwards by 3 degrees so as to reduce the length of the slide rod required by the side turning.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only illustrative of the present invention and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. An automobile rollover prevention device is characterized by comprising a motor, an air compressor, a high-pressure air storage tank, a pressure sensor, a pilot electromagnetic valve, a gyroscope sensor, a control module, an air cylinder, a fixed seat, a guide plate, a slide rod, a spring and a pulley;
the fixed seat is fixed below a chassis of the automobile;
the guide plate is a cuboid and is arranged in a direction perpendicular to the automobile body, one end of the guide plate is fixedly connected with the fixed seat, and the included angle between the upper end face and the automobile chassis is a preset angle threshold value;
the upper end surface of the guide plate is provided with a sliding chute perpendicular to the direction of the vehicle body, and the sliding chute penetrates through the guide plate; the sliding rod is arranged in the sliding groove of the guide plate and can freely slide along the sliding groove, and a baffle protruding from the sliding groove is arranged on the side wall of the sliding rod;
the spring is arranged in the sliding groove of the guide plate, one end of the spring is fixedly connected with the fixed seat, and the other end of the spring is fixedly connected with one end of the sliding rod close to the fixed seat; the pulley is arranged at one end of the sliding rod, which is far away from the fixed seat, and is used for contacting the ground;
the air cylinder is fixed below a chassis of the automobile, and a piston rod of the air cylinder is in an extending state and abuts against a baffle plate on the sliding rod, so that the spring is in a compressed state;
the gyroscope sensor is arranged below a chassis of the automobile and used for measuring the roll angle of the automobile and transmitting the roll angle to the control module;
the pressure sensor is arranged in the high-pressure air storage tank and used for measuring the air pressure in the high-pressure air storage tank and transmitting the air pressure to the control module;
the high-pressure gas storage tank is connected with the cylinder pipeline through the pilot electromagnetic valve and is used for driving the cylinder to work;
the motor is used for driving the air compressor to provide compressed gas for the high-pressure gas storage tank;
the control module is respectively electrically connected with the gyroscope sensor, the pressure sensor, the motor and the pilot electromagnetic valve and is used for controlling the motor and the pilot electromagnetic valve to work according to the sensing data of the gyroscope sensor and the pressure sensor.
2. The rollover prevention apparatus of a vehicle as set forth in claim 1, wherein the predetermined angular threshold is 3 °.
3. The control method of the rollover prevention device for the automobile according to claim 1, comprising the steps of:
step 1), a pressure sensor measures the air pressure in a high-pressure air storage tank and transmits the air pressure to a control module;
step 2), the control module compares the air pressure in the high-pressure air storage tank with the preset air pressure threshold, if the air pressure in the high-pressure air storage tank is smaller than the preset air pressure threshold, the control module controls the motor to work to drive the air compressor to provide compressed air for the high-pressure air storage tank until the air pressure in the high-pressure air storage tank is equal to the preset air pressure threshold;
step 3), a gyroscope sensor measures the roll angle of the automobile and transmits the roll angle to the control module;
step 4), the control module compares the roll angle of the automobile with the preset angle threshold, and if the roll angle of the automobile is larger than the preset angle threshold:
step 4.1), the control module controls the pilot electromagnetic valve to work, and drives a piston rod of the air cylinder to retract, so that the sliding rod is popped out from a sliding groove of the guide plate under the action of the spring, and the pulley is in contact with the ground;
and 4.2), the control module controls the pilot electromagnetic valve to work, a piston rod of the driving air cylinder extends out to abut against the sliding rod to enable the piston rod to be fixed in the sliding groove, and the sliding rod transmits force to the automobile body, so that the supporting effect is realized, and the automobile is prevented from side turning.
4. The method for controlling the rollover prevention device of the automobile as recited in claim 1, wherein the length of the sliding bar
In the formula, k is the elastic coefficient of the spring, x is the deformation of the spring when the spring is compressed, m is the mass of the slide bar, and t is the preset slide bar ejecting time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210248348.7A CN114572143B (en) | 2022-03-14 | 2022-03-14 | Automobile rollover prevention device and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210248348.7A CN114572143B (en) | 2022-03-14 | 2022-03-14 | Automobile rollover prevention device and control method thereof |
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| Publication Number | Publication Date |
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| CN114572143A true CN114572143A (en) | 2022-06-03 |
| CN114572143B CN114572143B (en) | 2023-03-17 |
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| CN202210248348.7A Active CN114572143B (en) | 2022-03-14 | 2022-03-14 | Automobile rollover prevention device and control method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115027393A (en) * | 2022-08-11 | 2022-09-09 | 江苏鸥宝机器人科技有限公司 | Universal robot removes chassis |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115027393A (en) * | 2022-08-11 | 2022-09-09 | 江苏鸥宝机器人科技有限公司 | Universal robot removes chassis |
| CN115027393B (en) * | 2022-08-11 | 2022-11-04 | 江苏鸥宝机器人科技有限公司 | Universal robot removes chassis |
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| Publication number | Publication date |
|---|---|
| CN114572143B (en) | 2023-03-17 |
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