CN111038382A - Vehicle rollover early warning device and method based on gravity ball device - Google Patents
Vehicle rollover early warning device and method based on gravity ball device Download PDFInfo
- Publication number
- CN111038382A CN111038382A CN201911422640.0A CN201911422640A CN111038382A CN 111038382 A CN111038382 A CN 111038382A CN 201911422640 A CN201911422640 A CN 201911422640A CN 111038382 A CN111038382 A CN 111038382A
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- China
- Prior art keywords
- resistor
- slide
- automobile
- gravity ball
- rollover
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
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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
-
- 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
Abstract
The invention discloses a device and a method for early warning of stumbling rollover of an automobile. The gravity ball device is fixed at the gravity center of the automobile by a ball hinge, and a ball hinge supporting seat plays a role in fixing and supporting. When a single wheel of an automobile touches an obstacle to cause the automobile to generate lateral deviation, the gravity ball drives the connecting rod and the resistor sliding rod to rotate to enable the resistance value of the slide wire resistor to change, the voltage signal acquisition device acquires a voltage signal which changes at the moment, and when the voltage signal exceeds a designed voltage threshold value, a control unit in the rollover warning device outputs the signal to a control circuit, lights a light-emitting diode, and a buzzer sends out an alarm to remind a driver of safe operation and reduce the rollover risk of the automobile, so that the rollover warning function is realized.
Description
Technical Field
The invention belongs to the technical field of vehicle active safety early warning, and relates to a vehicle rollover early warning method.
Background
The rollover of the automobile is one of major traffic safety accidents, and the traffic accidents caused by the rollover of the automobile account for about 30 percent of the whole traffic accidents. The rollover of the automobile causes serious economic loss and serious casualties, so that the research on the reasons of the rollover accident and the adoption of effective preventive measures become the subject of great attention and attention of people. In order to solve the problem of rollover of the automobile, an automobile safety rollover warning device, such as an automobile ABS wheel anti-lock system, a reversing radar, a reversing image, an airbag and the like, needs to be installed. Some foreign high-end vehicles are beginning to install sensors at various effective positions of the chassis of the vehicle body, such as a rear axle inclination angle sensor, a frame inclination angle sensor, a carriage inclination angle sensor, etc., for detecting the inclination angle gravity center shift of the axle, the lateral acceleration of the vehicle, etc. However, the alarm system is too high in cost and cannot be popularized in some low-end vehicles, and in addition, the sensor of the alarm system is easy to age, and the phenomena of false alarm and wrong alarm of signals exist.
Disclosure of Invention
The invention relates to a vehicle rollover early warning device based on a gravity ball device, which consists of the gravity ball device, a voltage signal acquisition device and a rollover early warning device.
The gravity ball device comprises a slide wire resistor, a resistor slide rod, a ball hinge supporting seat, a connecting rod and a gravity ball; the gravity ball is fixedly connected with the connecting rod, the connecting rod is fixedly connected with the ball hinge, the ball hinge is fixedly connected with the resistor sliding rod, the resistor sliding rod and the connecting rod are on the same straight line, and the center of mass of the gravity ball and the center of the ball hinge are on the same straight line; the spherical hinge is hinged with the spherical hinge supporting seat through a pin vertical to the connecting rod, and the gravity ball can drive the resistor sliding rod to swing left and right in a plane determined by the slide wire resistor and the resistor sliding rod. The slide wire resistor is in a circular arc shape, and the resistor slide rod keeps good contact with the slide wire resistor when rotating around the spherical hinge; the slide wire resistor is fixed with a vehicle body, and when a vehicle is laterally deviated, the resistor slide rod slides on the slide wire resistor under the gravity action of the gravity ball, so that the resistance value of the slide wire resistor connected to the sampling circuit is changed.
The voltage signal acquisition device consists of a power supply, a switch, an output terminal, a slide wire resistor, a divider resistor and an input terminal. The power supply, the switch, the slide wire resistor and the divider resistor form a closed loop. The slide wire resistor is a slide rheostat, when the resistance value of the slide wire resistor changes, the voltage at two ends of the divider resistor changes, and a voltage signal is output by the input terminal and the output terminal.
The rollover early warning device consists of a control unit, a control circuit, a light emitting diode and a buzzer. The voltage signal received by the voltage signal acquisition device is input to the control unit, and the control unit outputs the processed signal to the control circuit so as to control the light-emitting diode and the buzzer, thereby realizing the vehicle rollover early warning.
The rollover warning device disclosed by the invention has the working principle that: the vehicle rollover early warning device provides a vehicle roll voltage signal, the signal is input to the control unit, processed and output to the control circuit to light the light emitting diode, and meanwhile, the buzzer sends out early warning sound. When the automobile normally runs, the early warning system is in a normal working state, the light emitting diode is green, and the buzzer cannot make a sound; when the voltage in the central instrument panel is in the early warning range, the color of the light-emitting diode is changed into red, the buzzer sends out early warning sound, at the moment, the danger of rollover occurs, the driver is reminded to decelerate as soon as possible, the steering wheel is stabilized, and the purpose of safe driving is achieved.
When the automobile heels and the vertical line of the gravity center of the automobile is intersected with the rollover line of the automobile, the automobile can rollover, the roll angle of the automobile is the critical angle of the automobile rollover, and the critical voltage of the voltage dividing resistor is
Wherein, V0Is the voltage of a voltage-dividing resistor, R0Is the resistance value of the slide wire resistor, R is the resistance value of the divider resistor, V is the voltage of the battery pack, L is the length of the resistor slide rod, K is the length of the slide wire resistor,
theta is a rollover critical angle, the distance between OB is half of the wheel track of the automobile, and the distance between AB is the height of the gravity center of the automobile.
Drawings
FIG. 1 is a gravity ball apparatus;
FIG. 2 is a schematic diagram of a rollover threshold condition;
FIG. 3 is a circuit diagram of a voltage signal acquisition device;
FIG. 4 is a schematic view of the vertical deviation angle of gravity when turning on one side;
FIG. 5 is a schematic view of the operation principle of the rollover warning device;
in the figure, the device comprises a sliding wire resistor 1, a resistor sliding rod 3, a spherical hinge 4, a spherical hinge support 5, a connecting rod 6, a gravity ball 7, a power supply 8, a switch 9, an output terminal 10, an input terminal 11 and a voltage-dividing resistor.
Detailed Description
In order to more clearly explain the technical scheme and advantages of the invention, the working principle and specific implementation steps of the invention are explained in conjunction with specific drawings.
The vehicle rollover early warning device based on the gravity ball device comprises the gravity ball device, a voltage signal acquisition device and a rollover early warning device.
The gravity ball device comprises a slide wire resistor 1, a resistor slide rod 2, a spherical hinge 3, a spherical hinge supporting seat 4, a connecting rod 5 and a gravity ball 6; the gravity ball 6 is fixedly connected with the connecting rod 5, the connecting rod 5 is fixedly connected with the spherical hinge 3, the spherical hinge 3 is fixedly connected with the resistor slide rod 2, the resistor slide rod 2 and the connecting rod 5 are on a straight line, and the center of mass of the gravity ball 6 and the center of the spherical hinge 3 are on the straight line; the spherical hinge 3 is hinged with the spherical hinge supporting seat 4 through a pin perpendicular to the connecting rod 5, and the gravity ball 6 can drive the resistor sliding rod 2 to swing left and right in a plane determined by the slide wire resistor 1 and the resistor sliding rod 2. The slide wire resistor 1 is in a circular arc shape, and the resistor slide rod 2 is kept in good contact with the slide wire resistor 1 when rotating around the spherical hinge 3; the slide wire resistor 1 is fixed with a vehicle body, when the vehicle is laterally deviated, the resistor slide rod 2 slides on the slide wire resistor 1 under the gravity action of the gravity ball 6, and the resistance value of the slide wire resistor 1 connected to the sampling circuit is changed.
The voltage signal acquisition device consists of a power supply 7, a switch 8, an output terminal 10, a slide wire resistor 1, a divider resistor 11 and an input terminal 9. The power supply 7, the switch 8, the slide wire resistor 1 and the voltage dividing resistor 11 form a closed loop. The slide resistor 1 is a slide rheostat, and when the slide resistor 1 changes in resistance, the voltage across the voltage dividing resistor 11 changes, and a voltage signal is output from the input terminal 9 and the output terminal 10.
The rollover early warning device consists of a control unit, a control circuit, a light emitting diode and a buzzer. The voltage signal received by the voltage signal acquisition device is input to the control unit, and the control unit outputs the processed signal to the control circuit so as to control the light-emitting diode and the buzzer, thereby realizing the vehicle rollover early warning.
When the automobile heels and the vertical line of the gravity center of the automobile is intersected with the rollover line of the automobile, the automobile can rollover, the roll angle of the automobile is the critical angle of the automobile rollover, and the critical voltage of the voltage-dividing resistor 11 is
Wherein, V0Is the voltage of the voltage-dividing resistor 11, R0Is the resistance value of the slide wire resistor 1, R is the resistance value of the voltage dividing resistor 11, V is the voltage of the battery pack 7, L is the length of the resistor slide bar 2, K is the length of the slide wire resistor 1,
theta is a rollover critical angle, the distance between OB is half of the wheel track of the automobile, and the distance between AB is the height of the gravity center of the automobile.
Example 1: the resistance value of the slide wire resistor 1 is 20k omega, the resistance value of the divider resistor 11 is 20k omega, the voltage of the battery pack is 5v, the length of the slide wire resistor 1 is 20cm, the length of the resistor slide bar 2 is 4cm, the distance of the AB is 0.7m, the distance of the OB is 0.6m, and when the deflection angle of the automobile is theta, the deflection length of the slide wire resistor 1 is 4.7cm, and the voltage drop of the divider resistor 11 is 2.9 v. Similarly, the voltage drop of the voltage-dividing resistor 11 when the automobile deflects to the right can be calculated to be 3.9 v.
When the automobile is laterally deviated, the gravity ball device works as shown in fig. 1, 3 and 4, the slide wire resistor 1 is deflected to enable the input terminal 9 and the output terminal 10 on both sides of the divider resistor 11 to be connected with the voltmeter V of the central instrument panel1An indication is generated, when the indication V is1>3.9V or V1<And 2.9v, the rollover early warning device sends out an early warning signal.
The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and is not intended to limit the present invention. Any modification, equivalent replacement, and improvement made within the scope of the application of the present invention should be included in the protection scope of the present invention.
Claims (2)
1. The vehicle rollover early warning device of the gravity ball device based on the vertical gravity principle comprises a gravity ball device, a voltage signal acquisition device and a rollover early warning device; the gravity ball device comprises a slide wire resistor (1), a resistor slide rod (2), a spherical hinge (3), a spherical hinge supporting seat (4), a connecting rod (5) and a gravity ball (6); the gravity ball (6) is fixedly connected with the connecting rod (5), the connecting rod (5) is fixedly connected with the spherical hinge (3), the spherical hinge (3) is fixedly connected with the resistor sliding rod (2), the resistor sliding rod (2) and the connecting rod (5) are on the same straight line, and the center of mass of the gravity ball (6) and the center of the spherical hinge (3) are on the same straight line; the spherical hinge (3) is hinged with the spherical hinge supporting seat (4) through a pin vertical to the connecting rod (5), and the gravity ball (6) can drive the resistor sliding rod (2) to swing left and right in a plane determined by the slide line resistor (1) and the resistor sliding rod (2). The slide wire resistor (1) is in a circular arc shape, and the resistor slide rod (2) is kept in good contact with the slide wire resistor (1) when rotating around the spherical hinge (3); the slide wire resistor (1) is fixed with a vehicle body, when the vehicle is laterally deviated, the resistor slide rod (2) slides on the slide wire resistor (1) under the action of the gravity ball (6), and the resistance value of the slide wire resistor (1) connected to the sampling circuit is changed.
2. A device according to claim 1, characterized in that the maximum slip angle of the car is also the maximum slip angle of the gravity ball device, the deflection of the gravity ball (6) causing a change in the resistance of the slide resistance (1). Taking the left-side deviation of the automobile as an example, the resistance value of the slide wire resistor (1) becomes the maximum value, at the moment, the current in the circuit reaches the minimum value, and as the voltage dividing resistor (11) is not changed, the voltage of the voltage dividing resistor (11) can be calculated according to a voltage dividing formula:
wherein, V0Is the voltage of a voltage dividing resistor (11), R0Is the resistance of the slide wire resistor (1), R isThe resistance value of the divider resistor (11), V is the voltage of the battery pack (7), L is the length of the resistor slide bar (2), K is the length of the slide wire resistor (1),
theta is a rollover critical angle, the distance between OB is half of the wheel track of the automobile, and the distance between AB is the height of the gravity center of the automobile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911422640.0A CN111038382A (en) | 2019-12-30 | 2019-12-30 | Vehicle rollover early warning device and method based on gravity ball device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911422640.0A CN111038382A (en) | 2019-12-30 | 2019-12-30 | Vehicle rollover early warning device and method based on gravity ball device |
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| Publication Number | Publication Date |
|---|---|
| CN111038382A true CN111038382A (en) | 2020-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911422640.0A Pending CN111038382A (en) | 2019-12-30 | 2019-12-30 | Vehicle rollover early warning device and method based on gravity ball device |
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| CN (1) | CN111038382A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111608461A (en) * | 2020-05-06 | 2020-09-01 | 陈远 | Weather-resistant steel transmission tower |
| CN112793610A (en) * | 2021-01-30 | 2021-05-14 | 上海工程技术大学 | Subway train ramp driving anti-inclination stabilizing system |
| CN114834551A (en) * | 2022-04-06 | 2022-08-02 | 江苏西顿科技有限公司 | Radiation-proof mobile AGV |
Citations (7)
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|---|---|---|---|---|
| FR2794531A1 (en) * | 1999-06-07 | 2000-12-08 | Inst Francais Du Petrole | ELASTIC WAVE SENSOR DEVICE ELECTRICALLY COMPENSATES FOR TILT EFFECTS |
| US20050091862A1 (en) * | 2003-10-29 | 2005-05-05 | Hiram Diaz | Inclination angle reader and method for using same |
| CN103625360A (en) * | 2012-08-29 | 2014-03-12 | 交通运输部公路科学研究所 | Car rollover stability performance dynamic monitoring and alarming system |
| JP2014144762A (en) * | 2013-01-30 | 2014-08-14 | Honda Motor Co Ltd | Tilt detection device for vehicle |
| CN206056575U (en) * | 2016-09-30 | 2017-03-29 | 北京新能源汽车股份有限公司 | A kind of gradient measuring device and automobile |
| CN206075150U (en) * | 2016-08-31 | 2017-04-05 | 无锡昊阳新能源科技有限公司 | A kind of uniaxial tracking bracket angular transducer |
| CN107655456A (en) * | 2017-10-16 | 2018-02-02 | 广州市建设工程质量安全检测中心 | A kind of high-precision pendulum resistance-type inclination measurement device for being used to monitor and method |
-
2019
- 2019-12-30 CN CN201911422640.0A patent/CN111038382A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2794531A1 (en) * | 1999-06-07 | 2000-12-08 | Inst Francais Du Petrole | ELASTIC WAVE SENSOR DEVICE ELECTRICALLY COMPENSATES FOR TILT EFFECTS |
| US20050091862A1 (en) * | 2003-10-29 | 2005-05-05 | Hiram Diaz | Inclination angle reader and method for using same |
| CN103625360A (en) * | 2012-08-29 | 2014-03-12 | 交通运输部公路科学研究所 | Car rollover stability performance dynamic monitoring and alarming system |
| JP2014144762A (en) * | 2013-01-30 | 2014-08-14 | Honda Motor Co Ltd | Tilt detection device for vehicle |
| CN206075150U (en) * | 2016-08-31 | 2017-04-05 | 无锡昊阳新能源科技有限公司 | A kind of uniaxial tracking bracket angular transducer |
| CN206056575U (en) * | 2016-09-30 | 2017-03-29 | 北京新能源汽车股份有限公司 | A kind of gradient measuring device and automobile |
| CN107655456A (en) * | 2017-10-16 | 2018-02-02 | 广州市建设工程质量安全检测中心 | A kind of high-precision pendulum resistance-type inclination measurement device for being used to monitor and method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111608461A (en) * | 2020-05-06 | 2020-09-01 | 陈远 | Weather-resistant steel transmission tower |
| CN112793610A (en) * | 2021-01-30 | 2021-05-14 | 上海工程技术大学 | Subway train ramp driving anti-inclination stabilizing system |
| CN114834551A (en) * | 2022-04-06 | 2022-08-02 | 江苏西顿科技有限公司 | Radiation-proof mobile AGV |
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Application publication date: 20200421 |