CN205149852U - Driver assistance systems is followed to car low -speed - Google Patents
Driver assistance systems is followed to car low -speed Download PDFInfo
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- CN205149852U CN205149852U CN201520982268.XU CN201520982268U CN205149852U CN 205149852 U CN205149852 U CN 205149852U CN 201520982268 U CN201520982268 U CN 201520982268U CN 205149852 U CN205149852 U CN 205149852U
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Abstract
The utility model discloses a driver assistance systems is followed to car low -speed, including distance sensor, signal processing unit, the control unit and automobile interface unit, distance sensor is used for detecting the spacing distance of this car and front truck, distance sensor's output links to each other with signal processing unit, signal processing unit's output connection control unit, the control unit's output passes through automobile interface unit connection car drive unit, be equipped with in the automobile drive unit and be used for gathering go speed information's speedtransmitter of automobile, speedtransmitter's output is through automobile interface unit connection signal processing unit. The utility model discloses can be under traffic jams drive state, supplementary driver operates the car and moves ahead and park, can alleviate driver's driving fatigue degree, prevents the emergence of traffic accident, the emergence of traffic accidents such as knocking into the back both can effectively have been avoided to the spacing distance of real -time supervision and control and front truck, also can improve the current efficiency of car, alleviated traffic jams.
Description
Technical field
The utility model belongs to field of automobile, and particularly a kind of automobile low speed follows drive assist system.
Background technology
At present, vehicle drive ancillary technique is applied in various automobile product more and more, and its radical function is exactly the driving that car assisted chaufeur operates and controls automobile, improves safety and the traveling comfort of vehicle drive.From early stage automatic window, the track of popular use till now keeps ancillary system, automatic parking ancillary system, BAS, reversing aid system, adaptive cruise control system etc.The operation that these drive assist systems are very easy to automobile uses, and improves safety and the traveling comfort of vehicle drive.
The situation of traffic congestion often all can be met with the people of city drive.In this case, usual road speed is all comparatively slow, and loiters, and just traveling a bit of having to again stops, so repeatedly.In such driving procedure, chaufeur must observe the traffic status of road at any time, and frequent operation automobile starting moves ahead or stops.Under this driving condition; chaufeur usually can be driven because of attention high concentration and frequent operation and more easily produce fatigue; discomfort is brought, and the generation of the traffic accidents such as extension that easily cause knocking into the back, wipe to health, thus the situation of aggravation traffic congestion further.And in existing vehicle drive ancillary system, also do not have under this driving condition, the drive assist system of automobile driver operation and control automobile to be helped.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, there is provided a kind of under traffic congestion driving condition, car assisted driver's operation automobile front driving and parking, effectively can alleviate the driving fatigue degree of chaufeur, and the automobile low speed that prevention traffic accident occurs follows drive assist system.
The purpose of this utility model is achieved through the following technical solutions: a kind of automobile low speed follows drive assist system, comprise rang sensor, signal processing unit, control unit and automobile interface unit, rang sensor is for detecting the spacing distance of this car and front truck, the mouth of rang sensor is connected with signal processing unit, the mouth connection control unit of signal processing unit, the mouth of control unit connects Automobile drive unit by automobile interface unit, the speed sensor for gathering automobile driving speed information is provided with in Automobile drive unit, the mouth of speed sensor is through automobile interface unit connection signal processing unit.
Further, described low speed is followed drive assist system and is also comprised a man-machine interaction unit, and described man-machine interaction unit comprises follows the button of drive assist system and the telltale for showing current distance information and car speed information for allowing chaufeur open and close low speed.
Further, described signal processing unit comprises multiple comparator, and whether the spacing distance that whether spacing distance being respectively used to relatively this car and front truck is less than the parking threshold value of setting, whether the speed of a motor vehicle of this car is greater than zero, whether the speed of a motor vehicle of this car is greater than the maximum speed thresholding of setting, Ben Che and front truck is greater than the enabling gate limit value of setting.
The beneficial effects of the utility model are:
1, under traffic congestion driving condition, the moving ahead and stopping of car assisted driver's operation automobile, effectively can alleviate the driving fatigue degree of chaufeur, the generation of prevention traffic accident, the situation that can also reduce " human element is added stifled " occurs, the situation alleviating traffic congestion can be helped to a certain extent, effectively can improve safety and the traveling comfort of vehicle drive;
2, also can control with the minimum safe distance of front truck by Real-Time Monitoring, effectively can avoid the generation of traffic accidents such as knocking into the back, improve the safety of driving; Real-Time Monitoring also controls, with the ultimate range of front truck, can improve the traffic efficiency of automobile, can help the situation alleviating traffic congestion to a certain extent;
3, Real-Time Monitoring also controls the maximum speed of driving, provides necessary safety control for driver's operation controls this driving model of following.
Accompanying drawing explanation
Fig. 1 is drive assist system constructional drawing of the present utility model;
Fig. 2 is drive assist system decision flow diagram of the present utility model.
Detailed description of the invention
The technical solution of the utility model is further illustrated below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of automobile low speed of the present utility model follows drive assist system, comprise rang sensor, signal processing unit, control unit and automobile interface unit, rang sensor is for detecting the spacing distance of this car and front truck, the mouth of rang sensor is connected with signal processing unit, the mouth connection control unit of signal processing unit, the mouth of control unit connects Automobile drive unit by automobile interface unit, the speed sensor for gathering automobile driving speed information is provided with in Automobile drive unit, the mouth of speed sensor is through automobile interface unit connection signal processing unit.
Further, described low speed is followed drive assist system and is also comprised a man-machine interaction unit, and described man-machine interaction unit comprises follows the button of drive assist system and the telltale for showing current distance information and car speed information for allowing chaufeur open and close low speed.
Further, described signal processing unit comprises multiple comparator, and whether the spacing distance that whether spacing distance being respectively used to relatively this car and front truck is less than the parking threshold value of setting, whether the speed of a motor vehicle of this car is greater than zero, whether the speed of a motor vehicle of this car is greater than the maximum speed thresholding of setting, Ben Che and front truck is greater than the enabling gate limit value of setting.
A kind of automobile low speed of the present utility model follows the principle of work of drive assist system and working process is described below: this overlaps drive assist system and is controlled to open or close by chaufeur, drive assist system on period, rang sensor detects the spacing distance with front truck in real time, and the range information detected is sent to signal processing unit in real time; The current driving speed information of automobile sends to signal processing unit in real time through automobile interface unit; Signal processing unit utilizes the real-time Distance geometry road speed information received, and carries out decision-making according to the decision process set, and the corresponding braking of transmission in real time or actuation signal are to automobile interface unit; Automobile interface unit is responsible for the velocity information of current running car to send to signal processing unit on the one hand, on the other hand according to the braking received or actuation signal, goes operation parking of automobile or startup to move ahead.As shown in Figure 2, a kind of automobile low speed of the present utility model follows drive assist system decision-making technique to idiographic flow, comprises the following steps:
S1, chaufeur open and close drive assist system by button;
S2, judge whether drive assist system starts, if do not start, closing automobile speed-slackening signal, closing automobile actuation signal, exits operation; Otherwise carry out next step;
Whether S3, the spacing distance detecting this car and front truck are less than the parking threshold value (V) of setting, if then opening automobile speed-slackening signal, and closing automobile actuation signal, operation parking of automobile, and return step S2; Otherwise carry out next step;
Whether S4, the speed of a motor vehicle detecting this car are greater than zero, then carry out step S5 if not, if then carry out step S6;
Whether S5, the spacing distance detecting this car and front truck are greater than the enabling gate limit value of setting, if then closing automobile speed-slackening signal, and opening automobile actuation signal, operation automobile front driving, and return step S2; Otherwise opening automobile speed-slackening signal, closing automobile actuation signal, operation parking of automobile, and return step S2;
Whether S6, the speed of a motor vehicle detecting this car are greater than the maximum speed thresholding of setting, if then opening automobile speed-slackening signal, and closing automobile actuation signal, operation car deceleration travels, and returns step S2; Otherwise closing automobile speed-slackening signal, opening automobile actuation signal, operation automobile front driving, and return step S2.
Two are had for the distance threshold value of comparison decision: one is " parking threshold value (V) " in decision flow diagram shown in Fig. 2, it is used to compare the parameter value determined the need of performing shut-down operation, consider the factor of stopping distance, usually it is the function of vehicle velocity V, increases along with the increase of the speed of a motor vehicle; Another is " enabling gate limit value ", and when automobile is in dead ship condition, when being greater than this parameter value if monitor with the spacing distance of front truck, operation automobile starting moves ahead by drive assist system.Decision flow diagram is as shown in Figure 2 known, and this drive assist system mainly completes three tasks: one be when detect to be less than " parking threshold value (V) " with the spacing distance of front truck time, operation parking of automobile is to ensure traffic safety; Two be when detect to be greater than " enabling gate limit value " with the spacing distance of front truck time, operation automobile starting moves ahead; Three is when detecting that road speed is greater than " maximum speed thresholding ", and operation car deceleration moves ahead to ensure safety.
A kind of automobile low speed of the application follows drive assist system, can under traffic congestion driving condition, and moving ahead and stopping of car assisted driver's operation automobile, effectively can alleviate the driving fatigue degree of chaufeur, the generation of prevention traffic accident; Real-Time Monitoring also controls, with the minimum following distance of front truck, effectively to avoid the generation of traffic accidents such as knocking into the back, improves the safety of driving; Real-Time Monitoring also controls, with the maximum following distance of front truck, can improve the traffic efficiency of automobile, can help the situation alleviating traffic congestion to a certain extent; Real-Time Monitoring also controls the maximum speed of driving, provides necessary safety control for driver's operation controls this driving model of following.The situation that can reduce " human element is added stifled " in addition occurs, and can help the situation alleviating traffic congestion to a certain extent, effectively can improve safety and the traveling comfort of vehicle drive.
It should be noted that: a kind of automobile low speed of this patent design follows drive assist system, a kind of under specific driving environment condition, the ancillary system of car assisted driver's operation and control vehicle drive, it can only help automobile driver to complete a part of operating function of Driving Operation of Motor Vehicles, but automobile driver can not be replaced to complete whole driver behaviors to automobile, and the work such as manipulating vehicle steering still needs to have been operated by chaufeur.
Those of ordinary skill in the art will appreciate that, embodiment described here is to help reader understanding's principle of the present utility model, should be understood to that protection domain of the present utility model is not limited to so special statement and embodiment.Those of ordinary skill in the art can make various other various concrete distortion and combination of not departing from the utility model essence according to these technology enlightenment disclosed in the utility model, and these distortion and combination are still in protection domain of the present utility model.
Claims (3)
1. an automobile low speed follows drive assist system, it is characterized in that, comprise rang sensor, signal processing unit, control unit and automobile interface unit, rang sensor is for detecting the spacing distance of this car and front truck, the mouth of rang sensor is connected with signal processing unit, the mouth connection control unit of signal processing unit, the mouth of control unit connects Automobile drive unit by automobile interface unit, the speed sensor for gathering automobile driving speed information is provided with in Automobile drive unit, the mouth of speed sensor is through automobile interface unit connection signal processing unit.
2. automobile low speed according to claim 1 follows drive assist system, it is characterized in that, described low speed is followed drive assist system and is also comprised a man-machine interaction unit, and described man-machine interaction unit comprises follows the button of drive assist system and the telltale for showing current distance information and car speed information for allowing chaufeur open and close low speed.
3. automobile low speed according to claim 1 and 2 follows drive assist system, it is characterized in that, described signal processing unit comprises multiple comparator, and whether the distance that whether distance being respectively used to relatively this car and front truck is less than the parking threshold value of setting, whether the speed of a motor vehicle of this car is greater than zero, whether the speed of a motor vehicle of this car is greater than the maximum speed thresholding of setting, Ben Che and front truck is greater than the enabling gate limit value of setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520982268.XU CN205149852U (en) | 2015-12-01 | 2015-12-01 | Driver assistance systems is followed to car low -speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520982268.XU CN205149852U (en) | 2015-12-01 | 2015-12-01 | Driver assistance systems is followed to car low -speed |
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| CN205149852U true CN205149852U (en) | 2016-04-13 |
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| CN201520982268.XU Expired - Fee Related CN205149852U (en) | 2015-12-01 | 2015-12-01 | Driver assistance systems is followed to car low -speed |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105346542A (en) * | 2015-12-01 | 2016-02-24 | 电子科技大学 | Automobile low-speed following driving assistance system and decision making method of automobile low-speed following driving assistance system |
| US11011064B2 (en) | 2019-03-05 | 2021-05-18 | Denso International America, Inc. | System and method for vehicle platooning |
-
2015
- 2015-12-01 CN CN201520982268.XU patent/CN205149852U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105346542A (en) * | 2015-12-01 | 2016-02-24 | 电子科技大学 | Automobile low-speed following driving assistance system and decision making method of automobile low-speed following driving assistance system |
| US11011064B2 (en) | 2019-03-05 | 2021-05-18 | Denso International America, Inc. | System and method for vehicle platooning |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160413 Termination date: 20171201 |