CN103747571A - Vehicle speed based brake lamp automatic control method and control apparatus - Google Patents
Vehicle speed based brake lamp automatic control method and control apparatus Download PDFInfo
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- CN103747571A CN103747571A CN201310728413.7A CN201310728413A CN103747571A CN 103747571 A CN103747571 A CN 103747571A CN 201310728413 A CN201310728413 A CN 201310728413A CN 103747571 A CN103747571 A CN 103747571A
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- stop lamp
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Abstract
The invention brings forward a vehicle speed based brake lamp automatic control method and control apparatus. The method involves calculating vehicle deceleration according to a vehicle speed and then controlling the prompting mode of a vehicle brake lamp according to the vehicle deceleration. The control apparatus comprises a vehicle speed detection unit, a brake lamp control unit and a brake lamp prompting mode control unit, wherein the vehicle speed detection unit is connected with the brake lamp control unit for detecting the vehicle speed and sending the vehicle speed to the brake lamp control unit; the brake lamp control unit is connected with the brake lamp prompting mode control unit for receiving, processing and calculating vehicle speed information and sending a control signal to the brake lamp prompting mode control unit; and the brake lamp prompting mode control unit is also connected with the vehicle brake lamp for controlling the prompting mode of the vehicle brake lamp. According to the method and apparatus provided by the invention, as long as the vehicle speed is at an obvious deceleration state during the driving of a vehicle, the brake lamp emits prompting information according to the situation of the deceleration to give full prompting to a rear vehicle, thus the driving safety is greatly enhanced.
Description
Technical field
The invention belongs to automobile automatic control technology field, relate to a kind of stop lamp technology of automatically controlling.
Background technology
As everyone knows, stop lamp is for this car of prompting front vehicle slows down, and avoids occurring rear-end collision.In existing automotive engineering scheme, whether stop lamp lights the action of directly depending on brake pedal, only has after driver steps on brake pedal, and stop lamp just can be lit.This scheme, when middle low speed driving, can be given the enough promptings of front vehicle.But when Vehicle Driving Cycle is during in highway or through street, brake is the abundant unnecessary condition of slowing down.Driver can obtain by the control of gas pedal the adjustment of speed completely, and when being totally released gas pedal, under the effect of the air ground drag producing at engine towing astern with while running at high speed, automobile can obtain very large deceleration effect.This mode of not slowing down by brake is obviously recommendable from the angle of fuel consume and energy-saving and emission-reduction, but but can to the judgement of front vehicles speed, can bring certain difficulty to front vehicle, special under the not good environment in the visuals field such as night, rainy day, front vehicle cannot judge according to whether lighting of front stop lamp the velocity variations of front vehicles, therefore, existing stop lamp is lighted not fully up to expectations that scheme obviously does in high speed link.
Summary of the invention
The object of the present invention is to provide a kind of stop lamp autocontrol method and device that can reflect that the speed of a motor vehicle changes.
In order to achieve the above object, solution of the present invention is:
A stop lamp autocontrol method based on the speed of a motor vehicle, comprises the following steps:
(1) detect the speed of a motor vehicle;
(2), according to the described speed of a motor vehicle, calculate vehicle deceleration; Described vehicle deceleration is identical with vehicle acceleration unit, and numerical value is opposite number each other;
(3), according to described vehicle deceleration, control the prompting mode of place vehicle braking lamp.
Described step (3) comprising:
(31) when the absolute value of described vehicle deceleration is less than or equal to a
1time, described stop lamp does not work;
(32) when the absolute value of described vehicle deceleration is greater than a
1be less than or equal to a
2time, described stop lamp is with b
1the frequency of hertz, c
1duty ratio flicker;
(33) when the absolute value of described vehicle deceleration is greater than a
2be less than or equal to a
3time, described stop lamp is with b
2the frequency of hertz, c
2duty ratio flicker;
Until,
(3n) when the absolute value of described vehicle deceleration is greater than a
(n-1)and be less than or equal to a
ntime, described stop lamp is with b
(n-1)the frequency of hertz, c
(n-1)duty ratio flicker;
(3 (n+1)) is greater than a when the absolute value of described vehicle deceleration
ntime, described stop lamp Chang Liang;
Wherein, n is greater than 1; a
1, a
2to a
naltogether n value, is all greater than zero and increase successively; b
1, b
2to b
(n-1)value be all more than or equal to zero, and successively increase; c
1, c
2to c
(n-1)value be all more than or equal to 0 and be less than or equal to 1.
C
1, c
2to c
(n-1)value increase successively.
Described n equals 3; a
1equal 0.5 meter of/square of second, a
2equal 1 meter of/square of second, a
3equal 1.5 meters of/square of seconds; b
1equal 1, b
2be equal to 2; c
1, c
2be equal to 50%.
Realize a control device for the above-mentioned stop lamp autocontrol method based on the speed of a motor vehicle, comprise speed of a motor vehicle detecting unit, stop lamp control unit, stop lamp prompting mode control unit; Wherein, described speed of a motor vehicle detecting unit is connected with described stop lamp control unit, detects the speed of a motor vehicle, and sends to described stop lamp control unit; Described stop lamp control unit is also connected with described stop lamp prompting mode control unit, receives the described speed information that described speed of a motor vehicle detecting unit sends, and through processing, calculates, and transmits control signal to described stop lamp prompting mode control unit; Described stop lamp prompting mode control unit is also connected with the stop lamp of place vehicle, according to the prompting mode of stop lamp described in described control signal control.
Described speed of a motor vehicle detecting unit is connected with the parts that contain vehicle speed signal on the vehicle of place, directly to obtain described vehicle speed signal.
The parts that contain vehicle speed signal on the vehicle of described place are anti-lock braking system.
Or the parts that contain vehicle speed signal on the vehicle of described place are body electronics systems stabilisation.
Described stop lamp prompting mode control unit is relay fuse box.
Described stop lamp prompting mode control unit is integrated in described stop lamp control unit.
Owing to adopting such scheme, the invention has the beneficial effects as follows: the present invention can make as long as the speed of a motor vehicle in Vehicle Driving Cycle is when the obvious deceleration regime, no matter whether driver steps on brake pedal, stop lamp all can send information according to the situation of deceleration, to give front vehicle, points out fully.Therefore, though vehicle when in high-speed travel state, control unit also can be according to the reduction of the speed of a motor vehicle, automatically controls and lights or the stop lamp that glimmers, thereby greatly increased travel safety.
Accompanying drawing explanation
Fig. 1 be in prior art stop lamp by the schematic diagram of the directly actuated technical scheme of brake pedal;
Fig. 2 be in prior art stop lamp by the schematic diagram of the controller control based on brake pedal position sensor;
Fig. 3 is the schematic diagram of the stop lamp automatic control system based on the speed of a motor vehicle in the embodiment of the present invention.
In accompanying drawing: 1, first brake lamp; 2, the second stop lamp; 3, the 3rd stop lamp.
Embodiment
Below in conjunction with accompanying drawing illustrated embodiment, the present invention is further illustrated.
In prior art, the technical scheme of stop lamp mainly contains two kinds.One is directly controlled by brake pedal for stop lamp, and as shown in Figure 1, wherein first brake lamp 1 is aforementioned by the directly actuated stop lamp of brake pedal to its schematic diagram; The second is to gather brake pedal position by transducer, and controller is lighted stop lamp by the situation of change of this position, and as shown in Figure 2, the second stop lamp is aforementioned by the stop lamp of controller control to its schematic diagram.Wherein be not with any logical algorithm control, the situation of the speed of a motor vehicle do not considered yet, as long as driver does not step on brake pedal, no matter how car speed changes, the second stop lamp 2 all can not be lighted, if gather the transducer of brake pedal, damages, and that second stop lamp 2 more can not be lighted.The present invention is too simple for existing stop lamp technical scheme just, the problem of prompt facility deficiency under high velocity environment, propose a kind of stop lamp autocontrol method based on the speed of a motor vehicle and realized the device of this method, on the basis of original stop lamp technical scheme, the situation of change of the speed of a motor vehicle is taken into account, by logical operation, automatically control under specific circumstances stop lamp, prompting front vehicle, avoids knocking into the back.
A kind of stop lamp autocontrol method based on the speed of a motor vehicle of the present invention, the method comprises the following steps:
(1) detect the speed of a motor vehicle;
(2) calculate vehicle deceleration; Described vehicle deceleration is identical with vehicle acceleration unit, and numerical value is opposite number each other;
(3) according to the prompting mode of vehicle deceleration control stop lamp.
Above-mentioned steps (3) comprising:
(31) when the absolute value of vehicle deceleration is less than or equal to 0.5 meter of/square of second, stop lamp does not work;
(32), when the absolute value of vehicle deceleration is greater than while being less than or equal to 1 meter of/square of second 0.5 meter of/square of second, stop lamp glimmers with 1 hertz, the mode of 50% duty ratio;
(33), when the absolute value of vehicle deceleration is greater than while being less than or equal to 1.5 meters of/square of seconds 1 meter of/square of second, stop lamp glimmers with 2 hertz, the mode of 50% duty ratio;
(34) when the absolute value of vehicle deceleration is greater than 1.5 meters of/square of seconds, stop lamp Chang Liang.
In the method above-mentioned steps, can also arrange along with the reducing of vehicle deceleration, duty ratio also increases gradually.
The invention allows for a kind of stop lamp automatic control equipment based on the speed of a motor vehicle of realizing said method, this device comprises speed of a motor vehicle detecting unit, stop lamp control unit, stop lamp prompting mode control unit, and its structural representation as shown in Figure 3.Speed of a motor vehicle detecting unit is connected with stop lamp control unit, detects the speed of vehicle, and the information of detection is sent to stop lamp control unit; Stop lamp control unit is connected with stop lamp prompting mode control unit, receives the speed information that speed of a motor vehicle detecting unit sends, and calculates the deceleration size of vehicle, processes by analysis, and sending controling instruction is to stop lamp prompting mode control unit.Stop lamp prompting mode control unit is connected with the 3rd stop lamp 3, controls the prompting mode of the 3rd stop lamp 3 after the instruction of reception brake control unit.
In the present embodiment, speed of a motor vehicle detecting unit makes full use of vehicle bus, by bus communication, is connected with anti-lock braking system (ABS), directly from ABS, obtains the speed of a motor vehicle, simple and accurate.The present invention can also be by being connected with all control units that comprise vehicle speed signal such as body electronics systems stabilisation (ESP) and navigation, control unit of engine, transmission control unit or transducer, directly to obtain speed information.In addition, stop lamp prompting mode controller can be relay fuse box, also can be integrated in stop lamp control unit.
According to the present invention, for the driver of rear, even if front driver does not step on brake pedal, but obtain because of various reasons deceleration effect (for example unclamp gas pedal, cross deceleration strip, go up a slope etc.), it still be can be understood as to front driver and at point, stop or slight brake deceleration, for the speed of a motor vehicle judgement of front vehicle, have very great help.
The present invention can make as long as when the Vehicle Driving Cycle, and the speed of a motor vehicle is in obvious deceleration regime, and no matter whether driver steps on brake pedal, and stop lamp all can be according to the situation switch of deceleration, extinguish or convert brightness, to give front vehicle, points out fully.Therefore, though vehicle when in high-speed travel state, control unit also can be according to the reduction of the speed of a motor vehicle, automatically controls and lights or the stop lamp that glimmers, thereby greatly increased travel safety.
The above-mentioned description to embodiment is can understand and apply the invention for ease of those skilled in the art.Person skilled in the art obviously can easily make various modifications to these embodiment, and General Principle described herein is applied in other embodiment and needn't passes through performing creative labour.Therefore, the invention is not restricted to the embodiment here, those skilled in the art are according to announcement of the present invention, and not departing from the improvement that category of the present invention makes and revise all should be within protection scope of the present invention.
Claims (10)
1. the stop lamp autocontrol method based on the speed of a motor vehicle, is characterized in that: comprise the following steps:
(1) detect the speed of a motor vehicle;
(2), according to the described speed of a motor vehicle, calculate vehicle deceleration; Described vehicle deceleration is identical with vehicle acceleration unit, and numerical value is opposite number each other;
(3), according to described vehicle deceleration, control the prompting mode of place vehicle braking lamp.
2. the stop lamp autocontrol method based on the speed of a motor vehicle according to claim 1, is characterized in that: described step (3) comprising:
(31) when the absolute value of described vehicle deceleration is less than or equal to a
1time, described stop lamp does not work;
(32) when the absolute value of described vehicle deceleration is greater than a
1be less than or equal to a
2time, described stop lamp is with b
1the frequency of hertz, c
1duty ratio flicker;
(33) when the absolute value of described vehicle deceleration is greater than a
2be less than or equal to a
3time, described stop lamp is with b
2the frequency of hertz, c
2duty ratio flicker;
Until,
(3n) when the absolute value of described vehicle deceleration is greater than a
(n-1)and be less than or equal to a
ntime, described stop lamp is with b
(n-1)the frequency of hertz, c
(n-1)duty ratio flicker;
(3 (n+1)) is greater than a when the absolute value of described vehicle deceleration
ntime, described stop lamp Chang Liang;
Wherein, described n is greater than 1; a
1, a
2to a
naltogether n value, is all greater than zero and increase successively; b
1, b
2to b
(n-1)value be all more than or equal to 0, and successively increase; c
1, c
2to c
(n-1)value be all more than or equal to 0 and be less than or equal to 1.
3. the stop lamp autocontrol method based on the speed of a motor vehicle according to claim 2, is characterized in that: described c
1, c
2to c
(n-1)value increase successively.
4. the stop lamp autocontrol method based on the speed of a motor vehicle according to claim 2, is characterized in that: described n equals 3; a
1equal 0.5 meter of/square of second, a
2equal 1 meter of/square of second, a
3equal 1.5 meters of/square of seconds; b
1equal 1, b
2be equal to 2; c
1, c
2be equal to 50%.
5. a control device of realizing the stop lamp autocontrol method based on the speed of a motor vehicle claimed in claim 1, is characterized in that: comprise speed of a motor vehicle detecting unit, stop lamp control unit, stop lamp prompting mode control unit;
Wherein, described speed of a motor vehicle detecting unit is connected with described stop lamp control unit, detects the speed of a motor vehicle, and sends to described stop lamp control unit; Described stop lamp control unit is also connected with described stop lamp prompting mode control unit, receives the described speed information that described speed of a motor vehicle detecting unit sends, and through processing, calculates, and transmits control signal to described stop lamp prompting mode control unit; Described stop lamp prompting mode control unit is also connected with the stop lamp of place vehicle, according to the prompting mode of stop lamp described in described control signal control.
6. the stop lamp automatic control equipment based on the speed of a motor vehicle according to claim 5, is characterized in that: described speed of a motor vehicle detecting unit is connected with the parts that contain vehicle speed signal on the vehicle of place, directly to obtain described vehicle speed signal.
7. the stop lamp automatic control equipment based on the speed of a motor vehicle according to claim 6, is characterized in that: the parts that contain vehicle speed signal on the vehicle of described place are anti-lock braking system.
8. the stop lamp automatic control equipment based on the speed of a motor vehicle according to claim 6, is characterized in that: the parts that contain vehicle speed signal on the vehicle of described place are body electronics systems stabilisation.
9. the stop lamp automatic control equipment based on the speed of a motor vehicle according to claim 5, is characterized in that: described stop lamp prompting mode control unit is relay fuse box.
10. the stop lamp automatic control equipment based on the speed of a motor vehicle according to claim 5, is characterized in that: described stop lamp prompting mode control unit is integrated in described stop lamp control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310728413.7A CN103747571A (en) | 2013-12-25 | 2013-12-25 | Vehicle speed based brake lamp automatic control method and control apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310728413.7A CN103747571A (en) | 2013-12-25 | 2013-12-25 | Vehicle speed based brake lamp automatic control method and control apparatus |
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| CN103747571A true CN103747571A (en) | 2014-04-23 |
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| CN201310728413.7A Pending CN103747571A (en) | 2013-12-25 | 2013-12-25 | Vehicle speed based brake lamp automatic control method and control apparatus |
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Cited By (11)
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| CN104786921A (en) * | 2015-05-20 | 2015-07-22 | 马同金 | Automobile capable of displaying low-speed driving by tail red light |
| CN104924975A (en) * | 2015-06-29 | 2015-09-23 | 复旦大学 | Improved automobile tail-lamp device |
| CN106143287A (en) * | 2016-08-01 | 2016-11-23 | 广州汽车集团股份有限公司 | Automobile brake reminding method, automobile brake prompt system and automobile |
| CN106364398A (en) * | 2015-07-21 | 2017-02-01 | 王汉澎 | Brake lamp controller capable of indicating braking degree of motor vehicle |
| CN106828296A (en) * | 2017-04-07 | 2017-06-13 | 深圳市瀚路新能源汽车有限公司 | Warning control device and system |
| CN108340830A (en) * | 2018-03-06 | 2018-07-31 | 威马智慧出行科技（上海）有限公司 | The control method and system of electric vehicle and its Brake lamp |
| CN108819834A (en) * | 2018-06-29 | 2018-11-16 | 北京新能源汽车股份有限公司 | A kind of braking lamp control method, device, entire car controller and electric car |
| CN109178160A (en) * | 2018-08-10 | 2019-01-11 | 江门市大长江集团有限公司 | Motorcycle brake alarming method for power and device |
| CN110861576A (en) * | 2019-12-23 | 2020-03-06 | 奇瑞新能源汽车股份有限公司 | Control method and device of brake lamp |
| CN111251980A (en) * | 2018-12-03 | 2020-06-09 | 上海博泰悦臻网络技术服务有限公司 | Emergency brake automatic light-jumping method, system, storage medium and equipment |
| CN114074600A (en) * | 2020-08-13 | 2022-02-22 | 潍坊华光光电子有限公司 | Intelligent automobile brake lamp system and working method thereof |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104786921A (en) * | 2015-05-20 | 2015-07-22 | 马同金 | Automobile capable of displaying low-speed driving by tail red light |
| CN104924975A (en) * | 2015-06-29 | 2015-09-23 | 复旦大学 | Improved automobile tail-lamp device |
| CN106364398A (en) * | 2015-07-21 | 2017-02-01 | 王汉澎 | Brake lamp controller capable of indicating braking degree of motor vehicle |
| CN106143287A (en) * | 2016-08-01 | 2016-11-23 | 广州汽车集团股份有限公司 | Automobile brake reminding method, automobile brake prompt system and automobile |
| CN106828296A (en) * | 2017-04-07 | 2017-06-13 | 深圳市瀚路新能源汽车有限公司 | Warning control device and system |
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| CN108819834A (en) * | 2018-06-29 | 2018-11-16 | 北京新能源汽车股份有限公司 | A kind of braking lamp control method, device, entire car controller and electric car |
| CN108819834B (en) * | 2018-06-29 | 2021-05-25 | 北京新能源汽车股份有限公司 | Brake lamp control method and device, vehicle control unit and electric vehicle |
| CN109178160A (en) * | 2018-08-10 | 2019-01-11 | 江门市大长江集团有限公司 | Motorcycle brake alarming method for power and device |
| CN111251980A (en) * | 2018-12-03 | 2020-06-09 | 上海博泰悦臻网络技术服务有限公司 | Emergency brake automatic light-jumping method, system, storage medium and equipment |
| CN110861576A (en) * | 2019-12-23 | 2020-03-06 | 奇瑞新能源汽车股份有限公司 | Control method and device of brake lamp |
| CN110861576B (en) * | 2019-12-23 | 2022-06-07 | 奇瑞新能源汽车股份有限公司 | Control method and device of brake lamp |
| CN114074600A (en) * | 2020-08-13 | 2022-02-22 | 潍坊华光光电子有限公司 | Intelligent automobile brake lamp system and working method thereof |
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Application publication date: 20140423 |