CN113734282B - Blind area obstacle reminding system and automobile during steering of vehicle - Google Patents
Blind area obstacle reminding system and automobile during steering of vehicle Download PDFInfo
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- CN113734282B CN113734282B CN202111035946.8A CN202111035946A CN113734282B CN 113734282 B CN113734282 B CN 113734282B CN 202111035946 A CN202111035946 A CN 202111035946A CN 113734282 B CN113734282 B CN 113734282B
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- eps
- vibration
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- steering wheel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D15/00—Steering not otherwise provided for
- B62D15/02—Steering position indicators ; Steering position determination; Steering aids
- B62D15/025—Active steering aids, e.g. helping the driver by actively influencing the steering system after environment evaluation
- B62D15/0265—Automatic obstacle avoidance by steering
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- Combustion & Propulsion (AREA)
- Transportation (AREA)
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Abstract
The invention provides a blind area obstacle reminding system and an automobile during vehicle steering, wherein the system comprises: the system comprises an LCDA controller, a GW gateway, an EPS assembly and a steering wheel; the LCDA controller acquires surrounding environment information acquired by the ultrasonic radar and steering operation information input by a driver; when the moving speed of the moving object is determined to exceed the preset speed according to the surrounding environment information and the user has steering intention according to the steering operation information, the LCDA controller sends an alarm signal to the EPS controller through the GW gateway; the moving object is an object moving in the surrounding environment information acquired by the ultrasonic radar; judging whether an EPS vibration available state signal is available or not based on the alarm signal; if the EPS vibration available state signal is available, the EPS controller judges whether a steering wheel vibration reminding function is started or not; if the steering wheel vibration reminding function is started, the EPS controller controls the motor to vibrate, and the motor drives the steering wheel to vibrate synchronously.
Description
Technical Field
The invention belongs to the field of intelligent vehicle safety of vehicles, and particularly relates to a blind area obstacle reminding system and an automobile when the vehicle turns.
Background
The automobile is taken as an integral part of daily life of people, the demands of people on the automobile function are increased increasingly, more and more automobile functions are developed based on the consideration of comfort and safety of drivers, the drivers always meet the situation that the lanes need to be changed when driving the automobile, but when the lanes are changed, the drivers have the situation that the rear incoming automobile has a blind area, the lane change is at a certain risk, and based on the background situation, a function for reminding the drivers of the risk of the lane change and a blind area vibration reminding function are developed when the existence of the automobile or the pedestrian in the blind area is detected.
At present, many intelligent automobiles all have the function of blind area detection, but in the driving process, the blind area of a driver is only prompted by a rearview mirror or instrument display mode and the like to drive the automobile often because some drivers do not drive normally, if the driver is not looking at the rearview mirror or is a driver with unskilled driving, the situation that the eyes cannot observe the instrument or the reminding condition of the rearview mirror and the like can not play a role in function originally, and based on the consideration, the invention provides a blind area detection-based automobile steering vibration-based steering wheel to achieve the function of reminding the driver that the blind area of the automobile or the pedestrian exists.
Disclosure of Invention
The invention provides a blind area obstacle reminding system and an automobile when a vehicle turns, and aims to solve the problem that a driver is reminded of risk of lane change when the vehicle or a pedestrian appears in blind areas which cannot be seen by the driver and the driver has a turning intention.
The technical scheme of the invention is as follows:
the invention provides a blind area obstacle reminding system when a vehicle turns, which comprises the following components: the system comprises an LCDA controller, a GW gateway, an EPS assembly and a steering wheel;
the method comprises the steps that an LCDA controller obtains surrounding environment information acquired by an ultrasonic radar and steering operation information input by a driver, and a detection area of the ultrasonic radar comprises an area where a preset blind area of the driver is located;
when the moving speed of the moving object is determined to exceed the preset speed according to the surrounding environment information and the user has steering intention according to the steering operation information, the LCDA controller sends an alarm signal to an EPS controller in the EPS assembly through the GW gateway; the moving object is an object moving in surrounding environment information acquired by the ultrasonic radar;
the EPS controller judges whether an EPS vibration available state signal is available or not based on the alarm signal;
if the EPS vibration available state signal is available, the EPS controller judges whether a steering wheel vibration reminding function is started or not;
if the steering wheel vibration reminding function is started, the EPS controller controls a motor in the EPS assembly to vibrate, and the motor vibration is transmitted to the steering wheel through the steering column mechanical structure, so that the steering wheel vibrates synchronously.
Preferably, the blind area reminding system further comprises:
a vehicle entertainment system HU;
the vehicle-mounted entertainment system HU is used for enabling a user to start or close a steering wheel vibration reminding function; for the following:
when the steering wheel vibration reminding function is started, a user is provided for adjusting the vibration intensity level of the steering wheel, and when the information of the user for adjusting the vibration intensity level of the steering wheel is received, the vibration intensity level expected by the user is sent to an EPS controller of the EPS assembly, so that the EPS controller updates the currently stored vibration information according to the vibration intensity level expected by the user; and when the motor of the EPS assembly is controlled to vibrate next, controlling the motor of the EPS assembly to vibrate according to the updated vibration intensity level, wherein one vibration intensity level corresponds to one vibration frequency and one vibration period.
Preferably, after the alarm signal disappears for a preset period of time, the EPS controller of the EPS assembly controls the motor of the EPS assembly to stop vibrating.
Preferably, when receiving the information of the user on the adjustment of the vibration intensity level of the steering wheel, the vehicle-mounted entertainment system HU feeds back an error prompt that the vibration intensity level cannot be updated to the user and triggers the EPS controller to record a corresponding preset fault code if the fault information of the vibration intensity level cannot be sent to the EPS controller or the feedback information that the vibration intensity level cannot be adjusted and fed back by the EPS controller is received.
The invention also provides an automobile comprising the blind area obstacle reminding system when the automobile turns.
The beneficial effects of the invention are as follows:
in the process of changing the road when the vehicle runs, the unknown risk brought by moving objects in the dead zone can be effectively avoided, the driving safety of a driver is greatly improved, and the requirement of the steering wheel vibration reminding function is met.
Drawings
For a clearer description of embodiments of the invention and of the prior art, the drawings used in the description of the prior art will be briefly described.
FIG. 1 is a system block diagram of a blind area obstacle reminding system according to an embodiment of the invention;
fig. 2 is a flowchart of the blind area obstacle reminding system according to an embodiment of the invention.
Detailed Description
The following further describes the steps of the invention:
as shown in fig. 1 and 2, the present invention provides a blind area obstacle reminding system for vehicle steering or gear shifting, which includes an LCDA controller, a gateway GW, an EPS assembly, and an in-vehicle entertainment system HU.
First, the LCDA controller judges whether or not to issue an alarm signal by receiving information of detection of the surrounding environment by the ultrasonic radar and combining operation information to be turned left and right inputted by the driver.
Specifically, the detection area of the ultrasonic radar includes a predetermined area where the driver blind area is located, and whether or not there is a moving object in the blind area is determined by the detection information of the ultrasonic radar.
The LCAD controller determines that there is a moving object whose moving speed exceeds a preset speed in the blind area and that the driver has an operation action of turning on the turn signal (i.e., considers that the driver has a steering intention). At this time, the LCDA controller sends out an alarm signal.
If a moving object is detected in the blind area, but the driver considers that the steering intention is not met without turning on a steering lamp, the LCDA controller can not send an alarm signal.
In order to prevent the situation that the vehicle frequently changes lanes on a low-speed congestion road section to cause frequent triggering of the blind area obstacle reminding function, the driver is not good in experience, so that a speed limit value (preset speed) is set for the speed of a moving object detected by the ultrasonic radar, and an LCDA controller can send an alarm signal only if the moving object higher than the preset speed is detected.
Further, because the EPS controller and the LCDA controller of the whole vehicle EPS assembly are not in the same network segment, the left and right alarm signals sent by the LCDA controller need to be transmitted to the EPS controller by the GW gateway, and after the EPS controller receives the alarm signals, the EPS controller needs to judge the EPS vibration available state signals. When the EPS vibration available state signal is available, whether the steering wheel vibration reminding function is started or not is judged.
Wherein, steering wheel vibrations are reminded function and are carried out steering wheel vibrations by the driver by oneself and remind the setting of function in the soft switch in the pencil interface of on-vehicle entertainment system HU.
The vibration function switch signal set for THU, vibration intensity setting and other information are needed, and a vibration alarm request is sent after the information is integrated, so that the motor vibration of the EPS assembly is controlled.
After the blind area vibration reminding function of the steering wheel vibration reminding function is turned on, a user can select the vibration intensity level of the steering wheel, and the blind area vibration reminding function has three intensity selections of a low intensity level, a medium intensity level and a high intensity level. The vehicle-mounted entertainment system HU can also detect the fault state of the steering wheel vibration reminding function, and if the fault state occurs, fault information can be fed back to a driver. Under the normal triggering condition of the steering wheel vibration reminding function, the EPS controller can control the motor to vibrate according to vibration intensity levels (each vibration intensity level corresponds to one vibration frequency and vibration period) set by a user, and then the steering wheel is driven to vibrate.
However, in the process of controlling the motor vibration, the EPS controller needs to always detect whether an alarm signal exists, if so, the motor vibration is completed for one period, and then the motor vibration enters the next period to continue vibration; if no new alarm signal exists, the EPS controller controls the motor to finish vibration reminding after one period.
In addition, the system can continuously monitor faults, generate fault codes when faults occur, store the faults and then indicate the faults.
Based on the invention, the unknown risk brought by the moving object in the dead zone can be effectively avoided in the driving lane changing process of the vehicle, the driving safety of the driver is greatly improved, and the requirement of the steering wheel vibration reminding function is met.
Claims (4)
1. A blind area obstacle warning system when a vehicle turns, comprising: the system comprises an LCDA controller, a GW gateway, an EPS assembly, a steering wheel and a vehicle-mounted entertainment system HU;
the method comprises the steps that an LCDA controller obtains surrounding environment information acquired by an ultrasonic radar and steering operation information input by a driver, and a detection area of the ultrasonic radar comprises an area where a preset blind area of the driver is located;
when the moving speed of the moving object is determined to exceed the preset speed according to the surrounding environment information and the user has steering intention according to the steering operation information, the LCDA controller sends an alarm signal to an EPS controller in the EPS assembly through the GW gateway; the moving object is an object moving in surrounding environment information acquired by the ultrasonic radar;
the EPS controller judges whether an EPS vibration available state signal is available or not based on the alarm signal;
if the EPS vibration available state signal is available, the EPS controller judges whether a steering wheel vibration reminding function is started or not;
if the steering wheel vibration reminding function is started, the EPS controller controls a motor in the EPS assembly to vibrate, and the motor vibration is transmitted to the steering wheel through a steering column mechanical structure, so that the steering wheel vibrates synchronously;
the vehicle-mounted entertainment system HU is used for enabling a user to start or close a steering wheel vibration reminding function; for the following:
when the steering wheel vibration reminding function is started, a user is provided for adjusting the vibration intensity level of the steering wheel, and when the information of the user for adjusting the vibration intensity level of the steering wheel is received, the vibration intensity level expected by the user is sent to an EPS controller of the EPS assembly, so that the EPS controller updates the currently stored vibration information according to the vibration intensity level expected by the user; and when the motor of the EPS assembly is controlled to vibrate next, controlling the motor of the EPS assembly to vibrate according to the updated vibration intensity level, wherein one vibration intensity level corresponds to one vibration frequency and one vibration period.
2. The system of claim 1, wherein the EPS controller of the EPS assembly controls the motor of the EPS assembly to stop vibrating after the alarm signal disappears for a preset period of time.
3. The system according to claim 1, wherein the vehicle-mounted entertainment system HU, when receiving the information of the user on the adjustment of the vibration intensity level of the steering wheel, if detecting that the fault information of the vibration intensity level cannot be sent to the EPS controller or receiving the feedback information of the failure of the adjustment of the vibration intensity level fed back by the EPS controller, feeds back an error prompt that the vibration intensity level cannot be updated to the user, and triggers the EPS controller to record a corresponding preset fault code.
4. An automobile comprising the blind area obstacle warning system according to any one of claims 1 to 3 when the vehicle turns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111035946.8A CN113734282B (en) | 2021-09-06 | 2021-09-06 | Blind area obstacle reminding system and automobile during steering of vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111035946.8A CN113734282B (en) | 2021-09-06 | 2021-09-06 | Blind area obstacle reminding system and automobile during steering of vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN113734282A CN113734282A (en) | 2021-12-03 |
| CN113734282B true CN113734282B (en) | 2023-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111035946.8A Active CN113734282B (en) | 2021-09-06 | 2021-09-06 | Blind area obstacle reminding system and automobile during steering of vehicle |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103692994A (en) * | 2013-11-13 | 2014-04-02 | 李铁葵 | Vehicle forward radar control method and forward radar system |
| WO2016124277A1 (en) * | 2015-02-06 | 2016-08-11 | Continental Automotive Gmbh | Driver assistance system and method |
| CN107140021A (en) * | 2017-03-31 | 2017-09-08 | 深圳市元征科技股份有限公司 | Intelligent control method and device based on vehicle blind spot |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6371329B2 (en) * | 2016-05-16 | 2018-08-08 | トヨタ自動車株式会社 | Vehicle driving support control device |
| JP6610896B2 (en) * | 2016-11-28 | 2019-11-27 | トヨタ自動車株式会社 | Vehicle driving support device |
| US20180222387A1 (en) * | 2017-02-07 | 2018-08-09 | Shenzhen Xiaofeida Electronic Co., Ltd | Blind Zone Monitoring Method, License Plate Frame Device with Blind Zone Monitoring Function and Rearview Mirror |
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2021
- 2021-09-06 CN CN202111035946.8A patent/CN113734282B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103692994A (en) * | 2013-11-13 | 2014-04-02 | 李铁葵 | Vehicle forward radar control method and forward radar system |
| WO2016124277A1 (en) * | 2015-02-06 | 2016-08-11 | Continental Automotive Gmbh | Driver assistance system and method |
| CN107140021A (en) * | 2017-03-31 | 2017-09-08 | 深圳市元征科技股份有限公司 | Intelligent control method and device based on vehicle blind spot |
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| Publication number | Publication date |
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| CN113734282A (en) | 2021-12-03 |
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