CN109263653B - Method for confirming front view angle of automobile driver - Google Patents
Method for confirming front view angle of automobile driver Download PDFInfo
- Publication number
- CN109263653B CN109263653B CN201811351616.8A CN201811351616A CN109263653B CN 109263653 B CN109263653 B CN 109263653B CN 201811351616 A CN201811351616 A CN 201811351616A CN 109263653 B CN109263653 B CN 109263653B
- Authority
- CN
- China
- Prior art keywords
- automobile
- braking
- driver
- view angle
- road
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W2050/0001—Details of the control system
- B60W2050/0019—Control system elements or transfer functions
- B60W2050/0028—Mathematical models, e.g. for simulation
- B60W2050/0029—Mathematical model of the driver
Abstract
The invention relates to a method for checking the boundary of the front field of a car driver. A method for confirming the front view angle of an automobile driver comprises the following steps: 1) simulating that a driver drives at a road curve, emergency braking is required until the vehicle is static when emergency occurs, selecting a minimum secondary trunk turning radius, and setting the vehicle to be emergently braked from a position A to a static position B; 2) calculating the braking distance of the automobile: according to the formula of centripetal force: mv2/r＝α1mg of which is α1Is the lateral force coefficient; calculating V from the braking distance22as, wherein a α2mg/m，α2Is braking force coefficient, and the braking distance s is α1r/2α2(ii) a 3) And simulating a road in CATIA simulation analysis software and calculating the left view angle of the automobile. The invention can more accurately check the view angle in the automobile design process, provides better external view for a driver and improves the driving safety and comfort.
Description
Technical Field
The invention relates to a method for checking the front visual field boundary (glass black edge) of a car driver, in particular to a method for confirming the left and right front visual field angles of the car driver.
Background
The driver and passengers have comfortable visual fields in the front visual field of the automobile, and when the driver observes through the transparent area, the visual field of the driver is obstructed by the automobile structure and parts, so that the driving safety and the comfort are seriously influenced.
The GB11562-1994 automobile front visual field requirement and measurement method stipulates the basic requirement and measurement method of the front visual field, but the standard regulation is only suitable for M types of automobile, but has no relevant regulation for other types of automobile. The requirements for the front view of M types of vehicles in the national standard are as follows: the transparent area of the windshield should comprise at least the area enclosed by 6 reference points of the windshield, wherein the reference points are as follows: 1) v1 point is horizontally deviated from the reference point of the left 17 forward, 2) V2 point is deviated from the reference point of the upper 7 degrees forward along the plumb surface, 3) V2 point is deviated from the reference point of the lower 5 degrees forward along the plumb surface, 4) 3 reference points which are symmetrical to the reference points are added on the other side of the longitudinal symmetrical plane of the automobile.
In the actual automobile design process, in order to increase the market competitiveness of automobile models and provide better external vision, a more accurate method needs to be adopted to define the vision angle in the automobile design process so as to improve the driving safety and comfort.
Disclosure of Invention
The invention provides a method for confirming a front view angle of an automobile driver, aiming at the defects of the prior art. The visual field angle in the automobile design process can be checked more accurately, a better external visual field is provided for a driver, and the driving safety and the driving comfort are improved.
The technical scheme adopted by the invention is as follows:
a method for confirming the front view angle of an automobile driver comprises the following steps:
1) simulating that a driver drives at a road curve, emergency braking is required until the vehicle is static when emergency occurs, selecting a minimum secondary trunk turning radius, and setting the vehicle to be emergently braked from a position A to a static position B;
2) calculating the braking distance of the automobile: according to the formula of centripetal force: mv2/r= α1mg of which is α1Is the lateral force coefficient; calculating V from the braking distance2=2as, wherein a = α2mg/m，α2Brake distance s = α as the braking force coefficient1r/2 α2；
m: the mass of the automobile;
v: the linear velocity during braking;
v: the maximum vehicle speed at the initial braking moment, namely the vehicle speed at the position A;
r: the radius of gyration during braking;
3) and simulating a road in CATIA simulation analysis software and calculating the left view angle of the automobile.
The method for confirming the front sight angle of the automobile driver selects the minimum secondary main road turning radius of 15m and the road width of 3.6 m; the lateral force coefficient of the automobile on a dry asphalt road surface is 0.7, the braking force coefficient is 0.8, and the curvature radius of the minimum bend is 15 m;
according to the formula s = α1r/2 α2The braking distance is 6.5625m, and the curve distance from the point A with the highest vehicle speed to the point B in the static state is 6.5625 m;
knowing the coordinates of the R point of the automobile, wherein the front overhang of the automobile is 0.9m, the distance from the R point to the center of a front wheel is 1.5m, and the braking distance is 6.5625 m; and the left view angle of the driver is calculated to be larger than 19.077 degrees, so that the driver can see accidents at the curve, and after the curve is braked emergently, the vehicle cannot have safety accidents.
The invention has the beneficial effects that:
1. the method is simple and practical, can accurately check the view angle in the automobile design process, provides a better external view for a driver, and improves the driving safety and the driving comfort.
2. According to the method for confirming the front view angle of the automobile driver, the confirmed left view angle is 19.077 degrees, namely the included angle between the X plane passing through the designed R point and the black edge of the front windshield glass of the automobile is larger than the national standard requirement. The driving safety of the vehicle is improved. GB11562-1994 automobile front view requirement and measuring method is 17 degrees to the left side view angle in front.
Drawings
FIG. 1 is a schematic view of a road at a curve;
FIG. 2 is a schematic illustration of the braking distance at a road curve;
FIG. 3 is a view of a vehicle at a road curve being hard braked from position A to a rest position B;
FIG. 4 is a left side view of a road curve;
FIG. 5 is a diagram of a left view computed at CATIA;
FIG. 6 is a schematic diagram of the angle from the X plane of the over-design R point to the black edge of the automobile front windshield glass.
Detailed Description
The technical solution of the present invention is further described in detail by the following embodiments.
Example 1
The invention discloses a method for confirming the front view angle of an automobile driver, which comprises the following concrete steps:
1) simulating that a driver drives at a road curve, emergency braking is required until the vehicle is static when emergency occurs, selecting a minimum secondary trunk turning radius, and setting the vehicle to be emergently braked from a position A to a static position B;
2) calculating the braking distance of the automobile: according to the formula of centripetal force: mv2/r= α1mg of which is α1Is the lateral force coefficient; calculating V from the braking distance2=2as, wherein a = α2mg/m，α2Brake distance s = α as the braking force coefficient1r/2 α2；
m: the mass of the automobile;
v: the linear velocity during braking;
v: the maximum vehicle speed at the initial braking moment, namely the vehicle speed at the position A;
r: the radius of gyration during braking;
3) and simulating a road in CATIA simulation analysis software and calculating the left view angle of the automobile.
Example 2
Referring to fig. 1 and 2, the turning radius of the urban road intersection is controlled according to the following standards: the main trunk road is 20-30 m, and the secondary trunk road is 15-20 m. The road width was 3.6m. The method simulates the situation that a driver drives at a road curve, and needs emergency braking until the vehicle is static in an emergency situation. According to fig. 2 and 3, the braking distance is calculated according to the centripetal force formula and the braking distance.
Selecting a minimum secondary main road turning radius of 15m and a road width of 3.6 m; the lateral force coefficient of the automobile on a dry asphalt road surface is 0.7, the braking force coefficient is 0.8, and the curvature radius of the minimum bend is 15 m;
according to the formula s = α1r/2 α2The braking distance is 6.5625m, and the curve distance from the point A with the highest vehicle speed to the point B in the static state is 6.5625 m;
knowing the coordinates of the R point of the automobile, wherein the front overhang of the automobile is 0.9m, the distance from the R point to the center of a front wheel is 1.5m, and the braking distance is 6.5625 m; and the left view angle of the driver is calculated to be larger than 19.077 degrees, so that the driver can see accidents at the curve, and after the curve is braked emergently, the vehicle cannot have safety accidents.
Example 3
The method for confirming the front view angle of the automobile driver in the embodiment comprises the following concrete implementation steps:
the first step is to select the minimum turning radius of the main road of 15 m. Road width 3.6m. vehicle emergency braking from position a to rest position B, as shown in fig. 3;
secondly, the lateral force coefficient of the automobile on a dry asphalt road surface is 0.7, the braking force coefficient is 0.8, the curvature radius of the minimum bend is 15m, and the formula s = α is adopted1r/2 α2The braking distance was 6.5625m, and the curve distance from the point a of the highest vehicle speed to the point B in the stationary state was 6.5625 m. The front overhang of the car is 0.9m, as shown in fig. 4;
thirdly, simulating a road in CATIA simulation analysis software and calculating the left side view angle of the automobile as shown in FIG. 5; the coordinates of the R point of the automobile are known, the front overhang of the automobile is 0.9m, the distance from the R point to the center of the front wheel is 1.5m, and the braking distance is 6.5625 m. The left view angle of the driver is larger than 19.077 degrees, so that the driver can see accidents at the bend, and after the bend is braked emergently, the vehicle cannot have safety accidents.
GB11562-1994 automobile front view requirement and measuring method is 17 degrees to the left side view angle in front. The left side view angle 19.077 degrees confirmed by the method for confirming the front view angle of the automobile driver, namely the included angle (shown in figure 6) from the X plane of the over-designed R point to the black edge of the front windshield glass of the automobile, is larger than the national standard requirement, and the driving safety of the automobile is improved.
Claims (2)
1. A method for confirming the front view angle of an automobile driver is characterized in that: the method comprises the following implementation steps:
1) simulating that a driver drives at a road curve, emergency braking is required until the vehicle is static when emergency occurs, selecting a minimum secondary trunk turning radius, and setting the vehicle to be emergently braked from a position A to a static position B;
2) calculating the braking distance of the automobile:
according to the formula of centripetal force: mv2/r= α1mg of which is α1Is the lateral force coefficient;
calculating V from the braking distance2=2as, wherein a = α2mg/m，α2Is the braking force coefficient;
braking distance s = α1r/2 α2；
m: the mass of the automobile;
v: the linear velocity during braking;
v: the maximum vehicle speed at the initial braking moment, namely the vehicle speed at the position A;
r: the radius of gyration during braking;
3) and simulating a road in CATIA simulation analysis software and calculating the left view angle of the automobile.
2. The method for confirming a front view angle of an automobile driver according to claim 1, characterized in that: selecting a minimum secondary main road turning radius of 15m and a road width of 3.6 m; the lateral force coefficient of the automobile on a dry asphalt road surface is 0.7, the braking force coefficient is 0.8, and the curvature radius of the minimum bend is 15 m;
according to the formula s = α1r/2 α2The braking distance is 6.5625m, and the curve distance from the point A with the highest vehicle speed to the point B in the static state is 6.5625 m;
knowing the coordinates of the R point of the automobile, wherein the front overhang of the automobile is 0.9m, the distance from the R point to the center of a front wheel is 1.5m, and the braking distance is 6.5625 m; and the left view angle of the driver is calculated to be larger than 19.077 degrees, so that the driver can see accidents at the curve, and after the curve is braked emergently, the vehicle cannot have safety accidents.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811351616.8A CN109263653B (en) | 2018-11-14 | 2018-11-14 | Method for confirming front view angle of automobile driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811351616.8A CN109263653B (en) | 2018-11-14 | 2018-11-14 | Method for confirming front view angle of automobile driver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109263653A CN109263653A (en) | 2019-01-25 |
| CN109263653B true CN109263653B (en) | 2020-08-11 |
Family
ID=65193695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811351616.8A Active CN109263653B (en) | 2018-11-14 | 2018-11-14 | Method for confirming front view angle of automobile driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109263653B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2502802A (en) * | 2012-06-07 | 2013-12-11 | Jaguar Land Rover Ltd | Steering and yaw control for low speed, cruise control and low friction terrain |
| WO2015018611A1 (en) * | 2013-08-07 | 2015-02-12 | Jaguar Land Rover Limited | Vehicle speed control system and method |
| CN104408989A (en) * | 2014-11-27 | 2015-03-11 | 南京南车浦镇城轨车辆有限责任公司 | Rearview mirror simulation method for vehicle driving simulation system |
| CN104527643A (en) * | 2013-08-27 | 2015-04-22 | 罗伯特·博世有限公司 | Speed assistant for a motor vehicle |
| CN105607635A (en) * | 2016-01-05 | 2016-05-25 | 东莞市松迪智能机器人科技有限公司 | Panoramic optic visual navigation control system of automatic guided vehicle and omnidirectional automatic guided vehicle |
| CN105882661A (en) * | 2016-04-08 | 2016-08-24 | 重庆大学 | Motor vehicle curve driving assistance system and operation type |
| CN106004873A (en) * | 2016-05-26 | 2016-10-12 | 江苏大学 | Car curve collision avoidance and stability system coordination control method based on V2X car networking |
| WO2016186561A1 (en) * | 2015-05-20 | 2016-11-24 | Scania Cv Ab | Method and system for adjusting the acceleration of a vehicle travelling along a route |
| CN107526081A (en) * | 2017-08-28 | 2017-12-29 | 浙江东车智能科技有限公司 | Barrier discriminating conduct during a kind of automobile turning |
| CN107867290A (en) * | 2017-11-07 | 2018-04-03 | 长春工业大学 | A kind of automobile emergency collision avoidance layer-stepping control method for considering moving obstacle |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1357007B1 (en) * | 2002-04-23 | 2006-05-17 | Aisin Seiki Kabushiki Kaisha | Wheel grip factor estimation apparatus |
| US8478499B2 (en) * | 2010-06-07 | 2013-07-02 | Ford Global Technologies, Llc | System and method for vehicle speed monitoring using historical speed data |
| JP5716680B2 (en) * | 2012-01-10 | 2015-05-13 | 株式会社デンソー | Preceding vehicle selection device and inter-vehicle distance control device |
| US20180056858A1 (en) * | 2013-11-06 | 2018-03-01 | Frazier Cunningham, III | Vehicle signaling system |
| EP3100893B1 (en) * | 2015-06-04 | 2020-11-25 | FERRARI S.p.A. | Method to control a road vehicle with an electronically controlled self-locking differential when driving along a curve |
| US10035507B2 (en) * | 2016-04-26 | 2018-07-31 | International Business Machines Corporation | Vehicle collision avoidance |
-
2018
- 2018-11-14 CN CN201811351616.8A patent/CN109263653B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2502802A (en) * | 2012-06-07 | 2013-12-11 | Jaguar Land Rover Ltd | Steering and yaw control for low speed, cruise control and low friction terrain |
| WO2015018611A1 (en) * | 2013-08-07 | 2015-02-12 | Jaguar Land Rover Limited | Vehicle speed control system and method |
| CN104527643A (en) * | 2013-08-27 | 2015-04-22 | 罗伯特·博世有限公司 | Speed assistant for a motor vehicle |
| CN104408989A (en) * | 2014-11-27 | 2015-03-11 | 南京南车浦镇城轨车辆有限责任公司 | Rearview mirror simulation method for vehicle driving simulation system |
| WO2016186561A1 (en) * | 2015-05-20 | 2016-11-24 | Scania Cv Ab | Method and system for adjusting the acceleration of a vehicle travelling along a route |
| CN105607635A (en) * | 2016-01-05 | 2016-05-25 | 东莞市松迪智能机器人科技有限公司 | Panoramic optic visual navigation control system of automatic guided vehicle and omnidirectional automatic guided vehicle |
| CN105882661A (en) * | 2016-04-08 | 2016-08-24 | 重庆大学 | Motor vehicle curve driving assistance system and operation type |
| CN106004873A (en) * | 2016-05-26 | 2016-10-12 | 江苏大学 | Car curve collision avoidance and stability system coordination control method based on V2X car networking |
| CN107526081A (en) * | 2017-08-28 | 2017-12-29 | 浙江东车智能科技有限公司 | Barrier discriminating conduct during a kind of automobile turning |
| CN107867290A (en) * | 2017-11-07 | 2018-04-03 | 长春工业大学 | A kind of automobile emergency collision avoidance layer-stepping control method for considering moving obstacle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109263653A (en) | 2019-01-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106364486B (en) | A kind of intelligent vehicle lane change control method based on hazard analysis | |
| US20140163836A1 (en) | Apparatus and method for automatically controlling the speed of a vehicle in a speed bump area | |
| CN108944943B (en) | Bend following model based on risk dynamic balance theory | |
| RU2626424C1 (en) | Device and method for evaluation of vehicle attitude angle and position | |
| CN112561170B (en) | Traffic safety risk dynamic prediction method and system for intelligent driving automobile | |
| CN110161865A (en) | A kind of intelligent vehicle lane-change method for planning track based on Nonlinear Model Predictive Control | |
| CN109263652B (en) | Method for measuring and checking front visual field of driver | |
| CN103389214B (en) | Utilize the automobile crash test method of unmanned technology | |
| CN109263653B (en) | Method for confirming front view angle of automobile driver | |
| CN111751118A (en) | Test method for obtaining vehicle primary comfort index | |
| CN114889625A (en) | Method for establishing vehicle following model at road curve based on safe potential field theory | |
| CN109141913B (en) | A kind of body of a motor car installation reliability test method | |
| CN117400930B (en) | Risk field-based intelligent network-connected automobile roundabout scene risk degree evaluation method | |
| CN113640017A (en) | Test evaluation system and method for automatic emergency braking system of commercial vehicle | |
| TWI727077B (en) | Vehicle monitoring system and method | |
| CN103770840A (en) | Method for designing front longitudinal girder | |
| CN111231946B (en) | Low-sight-distance vehicle safe driving control method | |
| KR101911456B1 (en) | Crash simulation system | |
| CN111649686B (en) | High-precision vehicle collision deformation measuring method | |
| CN111967129A (en) | Longitudinal obstacle avoidance verification method based on CarMaker simulation environment | |
| Yoon et al. | A Study on Safety Evaluation Method of LKAS in Actual Road | |
| CN109283926A (en) | A method of based on the azimuthal vehicle of program along lane line automatic Pilot | |
| CN111651857A (en) | Instrument panel rigidity design method | |
| CN108376412A (en) | A kind of driving vision requirement region computational methods of automobile front windshield | |
| CN107622161B (en) | Passenger car structure optimization method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |