CN103707839A - Vehicle rollover protecting method - Google Patents
Vehicle rollover protecting method Download PDFInfo
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- CN103707839A CN103707839A CN201310755724.2A CN201310755724A CN103707839A CN 103707839 A CN103707839 A CN 103707839A CN 201310755724 A CN201310755724 A CN 201310755724A CN 103707839 A CN103707839 A CN 103707839A
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- vehicle
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- air bag
- control signal
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Abstract
The invention provides a vehicle rollover protecting method. The method includes the following steps that slope gradient sensors which are arranged on center pillars of frames on the two sides are used for detecting the tilting angle of a vehicle, and an angle signal is output; an acceleration sensor which is connected to a speed displayer of an instrument panel is used for detecting the accelerated speed of the vehicle, and an acceleration signal is output; an A/D converter is used for converting the analog signals output by the sensors into digital signals; the output signals of the sensors are compared with an inner standard through a controller, and a control signal is output; a first safety airbag arranged on a ceiling above a left vehicle door is used for receiving the control signal, so that left vehicle door glass is covered; a second safety airbag arranged on a ceiling above a right vehicle door is used for receiving the control signal, so that right vehicle door glass is covered.
Description
Technical field
The present invention relates to vehicle electronics field, refer to especially a kind of vehicle rollover guard method.
Background technology
The development of automobile has not only produced great function to social economy, and the mankind's life has also been brought to important impact.Automobile has become the main traffic instrument of people's trip, and its convenience is that aircraft, steamer and train are incomparable.
China is as newly emerging economy, become global first automobile consumption state, and the vehicle guaranteeding organic quantity of China has been broken through hundred million at present.Car is many, and road has been blocked up, and traffic accident is also more and more.
Accident research shows, safety air bag can reduce the chance of injury of navigating mate greatly, but during vehicle rollover, only forward side air bag is difficult to reach actv. protection, and moment occurs rollover accident, when the airbag-releasing of the place ahead, can cause unnecessary injury.
How making opening of safety air bag reach best effect, reduce the chance of injury of chaufeur and passenger in traffic accident, is current problem demanding prompt solution.
Summary of the invention
For addressing the above problem, the present invention proposes a kind of vehicle rollover guard method.
Technical scheme of the present invention is achieved in that
A vehicle rollover guard method, comprises the following steps:
By being arranged on the ramp rate sensor detected vehicle angle of inclination on the vehicle frame center pillar of both sides, output angle signal;
By being connected to the acceleration pick-up of gauge panel Speed display instrument, detect vehicle acceleration, output acceleration signal;
By A/D converter, described sensor outputting analog signal is converted to digital signal;
By controller, the output signal of described sensor is compared with internal reference, output control signal;
By being arranged on the first safety air bag of left-hand door top ceiling, receive described control signal, cover left-hand door glass;
By being arranged on the second safety air bag of right car door top ceiling, receive described control signal, cover right automobile door glass.
Alternatively, the expanding body integration of the first safety air bag and the second safety air bag is three kinds: launch pattern, 80% expansion pattern and 50% expansion pattern completely.
The invention has the beneficial effects as follows: by ramp rate sensor and acceleration pick-up, the slope trend of vehicle is made to anticipation, the safety air bag that triggers in time corresponding side when vehicle run-off the straight starts, protection navigating mate and passenger's safety.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the diagram of circuit of a kind of vehicle rollover guard method of the present invention.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Accident research shows, safety air bag can reduce the chance of injury of navigating mate greatly, but during vehicle rollover, only forward side air bag is difficult to reach actv. protection, and moment occurs rollover accident, when the airbag-releasing of the place ahead, can cause unnecessary injury.
The present invention makes anticipation by ramp rate sensor and acceleration pick-up to the slope trend of vehicle, and the safety air bag that triggers in time corresponding side when vehicle run-off the straight starts, protection navigating mate and passenger's safety.
As shown in Figure 1, a kind of vehicle rollover guard method, comprises the following steps:
By being arranged on the ramp rate sensor detected vehicle angle of inclination on the vehicle frame center pillar of both sides, output angle signal.
By being connected to the acceleration pick-up of gauge panel Speed display instrument, detect vehicle acceleration, output acceleration signal.
By A/D converter, described sensor outputting analog signal is converted to digital signal.
By controller, the output signal of described sensor is compared with internal reference, output control signal.
By being arranged on the first safety air bag of left-hand door top ceiling, receive described control signal, cover left-hand door glass.
By being arranged on the second safety air bag of right car door top ceiling, receive described control signal, cover right automobile door glass.
When automobile turning is too fast or when out of control, ramp rate sensor detected vehicle angle of inclination, acceleration pick-up measure vehicle acceleration, when reaching controller preset value, controller judgement vehicle have rollover may, starting protection measure.
Preferably, the expanding body integration of the first safety air bag, the second safety air bag and the 3rd safety air bag is three kinds: launch pattern, 80% expansion pattern and 50% expansion pattern completely.
Preferably, above-mentioned controller is dsp processor.
Above-mentioned dsp processor can be TMS320F2812DSP, is 32 fixed DSPs, and the AD data acquisition that it has EVA, EVB task manager and supporting 12 16 passages, has abundant Peripheral Interface, as CAN, SCI etc.The ADC module of TMS320F2812 is 12 bit resolutions, has the A and D converter of pipeline organization, the built-in dual-sampling hold circuit of TMS320F2812, and while keeping data acquisition, window has independently pre-calibration to control.And permission system is to same Channel-shifted repeatedly, allow user to carry out over-sampling algorithm, this more traditional single transformation result has increased more solution, is conducive to improve the precision of sampling.There are a plurality of trigger sources can start ADC conversion.Fast speed transfer time, ADC clock can be configured to 25MHz, and the highest sampling bandwidth is 12.5MSPS.
While building data acquisition system with TMS320F2812, needn't external ADC, avoided complicated hardware design.
The present invention makes anticipation by ramp rate sensor and acceleration pick-up to the slope trend of vehicle, and the safety air bag that triggers in time corresponding side when vehicle run-off the straight starts, protection navigating mate and passenger's safety.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (2)
1. a vehicle rollover guard method, is characterized in that, comprises the following steps:
By being arranged on the ramp rate sensor detected vehicle angle of inclination on the vehicle frame center pillar of both sides, output angle signal;
By being connected to the acceleration pick-up of gauge panel Speed display instrument, detect vehicle acceleration, output acceleration signal;
By A/D converter, described sensor outputting analog signal is converted to digital signal;
By controller, the output signal of described sensor is compared with internal reference, output control signal;
By being arranged on the first safety air bag of left-hand door top ceiling, receive described control signal, cover left-hand door glass;
By being arranged on the second safety air bag of right car door top ceiling, receive described control signal, cover right automobile door glass.
2. vehicle rollover guard method as claimed in claim 1, is characterized in that, the expanding body integration of the first safety air bag and the second safety air bag is three kinds: launch pattern, 80% expansion pattern and 50% expansion pattern completely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310755724.2A CN103707839A (en) | 2013-12-26 | 2013-12-26 | Vehicle rollover protecting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310755724.2A CN103707839A (en) | 2013-12-26 | 2013-12-26 | Vehicle rollover protecting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103707839A true CN103707839A (en) | 2014-04-09 |
Family
ID=50401307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310755724.2A Pending CN103707839A (en) | 2013-12-26 | 2013-12-26 | Vehicle rollover protecting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103707839A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112068128A (en) * | 2020-09-19 | 2020-12-11 | 重庆大学 | Method for processing data and acquiring pose of linear radar in straight road scene |
| CN112098678A (en) * | 2020-11-17 | 2020-12-18 | 南京集成电路产业服务中心有限公司 | Accelerometer system, vehicle-mounted control system and vehicle-mounted safety control method |
-
2013
- 2013-12-26 CN CN201310755724.2A patent/CN103707839A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112068128A (en) * | 2020-09-19 | 2020-12-11 | 重庆大学 | Method for processing data and acquiring pose of linear radar in straight road scene |
| CN112098678A (en) * | 2020-11-17 | 2020-12-18 | 南京集成电路产业服务中心有限公司 | Accelerometer system, vehicle-mounted control system and vehicle-mounted safety control method |
| CN112098678B (en) * | 2020-11-17 | 2021-02-26 | 南京集成电路产业服务中心有限公司 | Accelerometer system, vehicle-mounted control system and vehicle-mounted safety control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140409 |
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| WD01 | Invention patent application deemed withdrawn after publication |