CN205819182U - Lane shift control system based on crosswind impact - Google Patents
Lane shift control system based on crosswind impact Download PDFInfo
- Publication number
- CN205819182U CN205819182U CN201620701726.2U CN201620701726U CN205819182U CN 205819182 U CN205819182 U CN 205819182U CN 201620701726 U CN201620701726 U CN 201620701726U CN 205819182 U CN205819182 U CN 205819182U
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- vehicle
- crosswind
- ecu
- vibrator
- driver
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Abstract
The utility model discloses lane shift control system based on crosswind impact, described control system is made up of signals collecting part, ECU and executor's part, wherein signals collecting part adds the air velocity transducer being positioned at vehicle body both sides, to detect crosswind wind speed, and the signal output part of each building block of signals collecting part controls to be connected with ECU respectively；Described executor part is made up of instrument board LED, hazard warning lamp, buzzer, vibrator, engine air throttle and motor vehicle braking system, and its signal input part controls to be connected with ECU respectively.The impact of lane shift is taken into account by this utility model by crosswind, and to reduce car speed as pro-active intervention mode, consider deviation signal, the response time of driver and the vehicle limit speed under crosswind environment, reduce the speed in driver's reaction and machine driving lag time and lateral displacement.
Description
Technical field
This utility model belongs to automobile assistant driving systems technology field, is specifically related to lane shift based on crosswind impact
Control system.
Background technology
In vehicle traveling process, Lane Departure Warning System vehicle will run-off-road alarm, remind driver
Revise in time, to improving traffic safety, it is to avoid the vehicle accident caused because of run-off-road is significant.
The Lane Departure Warning System of main flow at present, such as: Lane Departure Warning System, i.e. LDW, although have good
Road Identification ability, and can be reported to the police by the form such as sound, vibrations, but the lane shift of vehicle cannot be led by this system
Dynamic intervention.
The most such as: track keeps aid system, i.e. LKA, first, although LKA system can be carried out when automotive run-off-road
Pro-active intervention, but the reaction in time of driver is not taken into account by it, i.e. carries out at once during automotive run-off-road or repaiies by force
Just, and after driver's active reaction, system cannot actively stop intervening, and the active driving behavior to driver forms obstacle；Its
Secondary, the makeover process of LKA system is that control system is complex, relatively costly by active steering correcting vehicle body.
Additionally, the impact of vehicle shift is not considered in the middle of control process by LDW system and LKA system by crosswind,
Under effect of Side Wind, vehicle can rapid lateral deviation, therefore, the practicality of above-mentioned two system and safety cannot fully meet user need
Ask.
Utility model content
For technical problem present in prior art, the utility model discloses lane shift control based on crosswind impact
System processed, with provide one can pro-active intervention, and consider effect of Side Wind and the simpler and human nature of time of driver's reaction
The control system changed.In conjunction with Figure of description, the technical solution of the utility model is as follows:
Lane shift control system based on crosswind impact, is made up of signals collecting part, ECU and executor's part,
Described signals collecting part by vehicle speed sensor, air velocity transducer, steering-wheel torque sensor, Lane Departure Warning System and
Pressure transducer forms；
Wherein, described air velocity transducer is arranged on vehicle body both sides, to detect crosswind wind speed；Described pressure transducer is arranged on
Below vehicle carrying center of gravity, described vehicle speed sensor, air velocity transducer, steering-wheel torque sensor, Lane Departure Warning System
And the signal output part of pressure transducer controls to be connected with ECU respectively；
Described executor part is by instrument board LED, hazard warning lamp, buzzer, vibrator, engine air throttle
And motor vehicle braking system composition；
Wherein, described hazard warning lamp is installed on outside headstock front, for sending alarm to Facing Movement vehicle
Signal, described buzzer is installed on cabin interior, and described vibrator is installed on below pilot set, described instrument board LED
The signal input part of lamp, hazard warning lamp, buzzer, vibrator, engine air throttle and motor vehicle braking system is divided equally
Do not control to be connected with ECU.
Compared with prior art, the beneficial effects of the utility model are:
1, this utility model is by effect of Side Wind in view of in the middle of lane shift control process, more meets user to vehicle
Practicality and the requirement of safety.
2, this utility model has considered deviation signal, the response time of driver and vehicle at crosswind environment
Under limit speed, when driver the most at the appointed time make correction reaction or automobile in crosswind environment to exceed safety
During the higher speed lateral deviation of threshold value, system, to slow down in the way of pro-active intervention, reduces driver's reaction and machine driving
Speed in lag time and lateral displacement, in order to just returning in time after driver's reaction.
3, this utility model is detecting that driver has correction reaction, when i.e. steering-wheel torque sensor has signal, actively
Intervening and stop immediately, vehicle travels according to the wish of driver, and the active not interfering with driver is driven.
4, system of the present utility model and control method simple and flexible, it is easy to popularization and application.
Accompanying drawing explanation
Fig. 1 is the structure composition frame chart of lane shift control system based on crosswind impact described in the utility model；
Fig. 2 is the workflow block diagram of lane shift control system based on crosswind impact described in the utility model.
Detailed description of the invention
As it is shown in figure 1, the utility model discloses lane shift control system based on crosswind impact, this system is by signal
Collecting part, ECU and executor's part composition.Wherein, described signals collecting part by vehicle speed sensor, air velocity transducer,
Steering-wheel torque sensor, Lane Departure Warning System and pressure transducer composition, described air velocity transducer is arranged on vehicle body
Both sides, for detecting the crosswind wind speed under vehicle local environment；Described pressure transducer is arranged on below vehicle carrying center of gravity, uses
Carrying situation in detection vehicle.
Described vehicle speed sensor, air velocity transducer, steering-wheel torque sensor, Lane Departure Warning System and pressure pass
The signal output part of sensor controls to be connected with ECU respectively, respectively by GES, crosswind wind velocity signal, steering-wheel torque letter
Number, deviation signal and vehicle carrying signal send to ECU, and by ECU be analyzed judgement.
Described executor part is by instrument board LED, hazard warning lamp, buzzer, vibrator, engine air throttle
And motor vehicle braking system composition, described instrument board LED is for carrying out visual alarm, described danger warning to driver
Flash lamp is installed on outside headstock front, and for Facing Movement vehicle signal an alert, described buzzer is installed on driving
Chamber interior, for carrying out alarm acoustically to driver, described vibrator is installed on below pilot set, for driving
Member carries out the alarm in sense of touch.
Described instrument board LED, hazard warning lamp, buzzer, vibrator, engine air throttle and car braking
The signal input part of system controls to be connected, to perform the execution order that ECU sends with ECU respectively.Described engine air throttle
Realize under control of the ecu with motor vehicle braking system being turned on and off, to realize the retarding braking to vehicle or to release braking.
As in figure 2 it is shown, the impact of lane shift is taken into account by described lane shift control system system by crosswind, and with
Reduction car speed is as pro-active intervention mode, to the time of driver's active correction offset lanes, returns positive vehicle in time.Specifically
Work process is as follows:
1, vehicle ECU is by the GES collected, and analyzes and judges whether speed is more than systemic presupposition value 60km/h,
Such as larger than, then system is opened.
2, vehicle ECU is by the pressure sensor signal collected, and analyzes and judges the loaded state of vehicle, and pass through journey
Sequence calculates and determines unloaded parameter and fully loaded parameter respectively.
3, the deviation signal that vehicle ECU is collected by Lane Departure Warning System LDW, it is judged that whether track is in
Deviation state, such as deviation, then enters next step；As track without departing from, then circulate this step.
4, vehicle ECU is with vehicle bearing parameter, crosswind wind speed as influence factor, analyzes and judges that vehicle speed now is
No more than the limit speed under current working.Judge process is as follows:
First, vehicle side pathogenic wind dynamic characteristic is carried out numerical simulation, determine pneumatic six square phase coefficient and the function of side drift angle
Relation, i.e. crosswind aerodynamic characteristic curve；
Detailed process is: calculate vehicle not based on aggregate velocity method and hydrodynamic simulation software STAR-CCM+
With the pneumatic six square phase coefficient under speed and crosswind wind speed, for eliminating the fluctuating error of numerical simulation, meet dynamics simulation
Requirement, based on numerical simulation data and the method for fitting of a polynomial, has obtained the functional relationships of pneumatic six square phase coefficient and side drift angle
System, and contrasts matched curve with initial data, if matched curve can preferably overlap with initial data, then and can be in order to
Set up Aerodynamics Model with matched curve, otherwise need matching again, until the two can preferably overlap.
The characteristic curve being then based on TruckSim/CarSim software and vehicle sets up the kinetic model of car load, including
The modeling of aerodynamic system modelling, carbody modeling, driving system, steering modeling, brakes modeling and power transmission
System modelling, arranges emulation crosswind wind speed and speed, obtains in Simple Crosswind Test model the most in software
Under different speeds, the lateral displacement of vehicle and lateral acceleration are with the change curve of crosswind wind speed, utilize rollover test stand or reason
Opinion formula is calculated the rollover threshold of vehicle, take empty full carry the lateral displacement after the default effect of Side Wind time under parameter with
And lateral acceleration, with lateral displacement less than preset value, it is standard that lateral acceleration is less than rollover threshold, determines under different wind speed
Limit speed；
Finally, with current crosswind wind speed as parameter, determine the limit speed under current crosswind wind speed, and enter with current vehicle speed
Row contrast.
5, vehicle ECU sends according to vehicle speed condition and performs order
A. when vehicle ECU judges that now speed is more than limit speed；
(1) vehicle ECU sends and performs order, and panic alarm lamp is opened, buzzer warning, vibrator open vibration, instrument
Plate LED is bright, and brake system is directly braked with default 0.3MPa pressure, vehicle deceleration；
(2) the deviation signal that vehicle ECU continues according to gathering judges whether vehicle is in deviation state；
(3) it is still within deviation state when vehicle, the signal of the ECU steering-wheel torque sensor by gathering, sentence
Whether disconnected driver has the behavior revising run-off-road；The behavior not revising run-off-road such as driver then carries out above-mentioned steps
(1)；Driver have the behavior revising run-off-road then release as described in buzzer and vibrator alarm, and release braking, emergent
Warning light is held open, and proceeds above-mentioned steps (2)；
When vehicle is not at deviation state, then release described buzzer alarm and vibrator alarm, panic alarm lamp
Closing, and release braking, engine air throttle normally works by throttle sensor signal, and system controls to terminate；
B. when vehicle ECU judges that now speed is not more than limit speed；
(1) buzzer warning, ECU internal timer starts timing；
(2), when exceeding default response time 0.8s when timer, vehicle ECU is according to the letter of steering-wheel torque sensor
Number, it is judged that whether driver has the behavior revising run-off-road；
(3) not revising the behavior of run-off-road as driver, vehicle ECU sends finger to vibrator and engine air throttle
Order, vibrator starts vibration, and engine throttled back, vehicle deceleration, and circulates this step, until driver revises deviation
Track；When driver has the behavior of correction run-off-road, and all clear, it is normal that engine air throttle presses throttle sensor signal
Work, and whether detection vehicle there is deviation further, when vehicle is not at vehicle deviation, and system controls to terminate.
Claims (1)
1. lane shift control system based on crosswind impact, is made up of signals collecting part, ECU and executor's part, its
It is characterised by:
Described signals collecting part is by vehicle speed sensor, air velocity transducer, steering-wheel torque sensor, Lane Departure Warning System
And pressure transducer composition；
Wherein, described air velocity transducer is arranged on vehicle body both sides, to detect crosswind wind speed；Described pressure transducer is arranged on vehicle
Carrying center of gravity below, described vehicle speed sensor, air velocity transducer, steering-wheel torque sensor, Lane Departure Warning System and
The signal output part of pressure transducer controls to be connected with ECU respectively；
Described executor part by instrument board LED, hazard warning lamp, buzzer, vibrator, engine air throttle and
Motor vehicle braking system forms；
Wherein, described hazard warning lamp is installed on outside headstock front, is used for Facing Movement vehicle signal an alert,
Described buzzer is installed on cabin interior, and described vibrator is installed on below pilot set, described instrument board LED, danger
Danger hazard warning flasher, buzzer, vibrator, engine air throttle and motor vehicle braking system signal input part respectively with
ECU controls to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620701726.2U CN205819182U (en) | 2016-07-06 | 2016-07-06 | Lane shift control system based on crosswind impact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620701726.2U CN205819182U (en) | 2016-07-06 | 2016-07-06 | Lane shift control system based on crosswind impact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205819182U true CN205819182U (en) | 2016-12-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620701726.2U Expired - Fee Related CN205819182U (en) | 2016-07-06 | 2016-07-06 | Lane shift control system based on crosswind impact |
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| CN (1) | CN205819182U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106043279A (en) * | 2016-07-06 | 2016-10-26 | 吉林大学 | Lane shift control system based on crosswind influences and control method of lane shift control system |
| CN108061813A (en) * | 2017-12-26 | 2018-05-22 | 北京航天益森风洞工程技术有限公司 | A kind of bullet train crosswind data measurin system based on five-hole probe |
| CN111497870A (en) * | 2019-01-14 | 2020-08-07 | 厦门歌乐电子企业有限公司 | Device and method for reminding vehicle of driving beyond lane line |
-
2016
- 2016-07-06 CN CN201620701726.2U patent/CN205819182U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106043279A (en) * | 2016-07-06 | 2016-10-26 | 吉林大学 | Lane shift control system based on crosswind influences and control method of lane shift control system |
| CN108061813A (en) * | 2017-12-26 | 2018-05-22 | 北京航天益森风洞工程技术有限公司 | A kind of bullet train crosswind data measurin system based on five-hole probe |
| CN111497870A (en) * | 2019-01-14 | 2020-08-07 | 厦门歌乐电子企业有限公司 | Device and method for reminding vehicle of driving beyond lane line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161221 Termination date: 20190706 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |