阅读说明：本技术 一种车辆转向时的盲区障碍物提醒系统及汽车 (Blind area barrier reminding system and car when vehicle turns to ) 是由 何羽军 于 2021-09-06 设计创作，主要内容包括：本发明提供了一种车辆转向时的盲区障碍物提醒系统及汽车,该系统包括：LCDA控制器、GW网关、EPS总成和方向盘；LCDA控制器获取超声波雷达采集的周围环境信息和驾驶员输入的转向操作信息；在根据周围环境信息确定移动物体的移动速度超过预设速度和根据转向操作信息确定用户具有转向意图时,LCDA控制器通过GW网关发出报警信号给EPS控制器；移动物体为超声波雷达所采集的周围环境信息中正在移动的物体；基于报警信号,判断EPS震动可用状态信号是否为可用；若EPS震动可用状态信号为可用,则EPS控制器判断方向盘震动提醒功能是否开启；若方向盘震动提醒功能开启,则EPS控制器控制电机震动,电机带动方向盘同步震动。(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 is determined to have the 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 the 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 the 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.)

1. The utility model provides a blind area barrier when vehicle turns to reminds system which characterized in that includes: 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 collected by an ultrasonic radar and steering operation information input by a driver, and a detection area of the ultrasonic radar comprises a predetermined area where a driver blind area 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 is determined to have the steering intention according to the steering operation information, the LCDA controller sends an alarm signal to an EPS controller in the EPS assembly through a GW gateway; the moving object is an object moving in the surrounding environment information acquired by the ultrasonic radar;

the EPS controller judges whether the 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 the steering wheel vibration reminding function is started or not;

if the steering wheel vibration reminding function is started, the EPS controller controls the motor vibration in the EPS assembly, and the motor vibration is transmitted to the steering wheel through the steering column mechanical structure, so that the steering wheel synchronously vibrates.

2. The system of claim 1, wherein the blind spot alert system further comprises:

a vehicle entertainment system HU;

the vehicle-mounted entertainment system HU is used for a user to start or close a steering wheel vibration reminding function; and for:

when the steering wheel vibration reminding function is started, a user adjusts 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 time, controlling the motor of the EPS assembly to vibrate according to the updated vibration intensity levels, wherein one vibration intensity level corresponds to one vibration frequency and one vibration period.

3. 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 warning signal disappears for a preset period of time.

4. The system according to claim 2, wherein the in-vehicle entertainment system HU, upon receiving the information of the adjustment of the vibration intensity level of the steering wheel by the user, if it is detected that the fault information of the vibration intensity level cannot be sent to the EPS controller or the feedback information of the adjustment of the vibration intensity level that is fed back by the EPS controller is received, feeds back an error prompt that the vibration intensity level cannot be updated to the user, and triggers the EPS controller to record the corresponding preset fault code.

5. An automobile characterized by comprising the blind obstacle warning system when the vehicle turns according to any one of claims 1 to 4.

Technical Field

The invention belongs to the field of vehicle intelligent vehicle safety, and particularly relates to a blind area obstacle reminding system and an automobile during vehicle steering.

Background

The automobile is an inseparable part in people's daily life, people's demand for automobile function is increasing day by day, more and more automobile function's development is based on driver's comfort and safety and is considered as the starting point, driver often meets the condition that needs the lane change in the driving vehicle in the process of traveling now, but when changing the lane, the driver is the condition that there is the blind area in the coming car of rear, there is certain risk in changing the lane at this moment, based on this background condition, develop one kind when detecting that the blind area has vehicle or passerby, and the driver has the intention of turning at this moment, remind driver to change the function that the lane is risky, and blind area vibrations remind the function.

At present, many intelligent automobiles have a function of detecting blind areas, but in the driving process, the driver is only prompted to drive the automobile in the blind areas in a non-standard mode through a rear view mirror or an instrument display mode and the like, if the driver does not see the rear view mirror or is an unskilled driver, the condition that the reminding of the instrument or the rear view mirror cannot be observed by eyes and the like cannot well play the original function of the function, and based on the consideration, the function of reminding the driver that the blind areas have the automobile or the pedestrian is achieved by detecting the automobile steering based on the blind areas and vibrating a steering wheel.

Disclosure of Invention

The invention provides a blind area obstacle reminding system and an automobile during vehicle steering, which aim to solve the problem that when a vehicle or a pedestrian appears in a blind area which cannot be seen by a driver, the driver is reminded of danger when the driver has steering intention.

The technical scheme of the invention is as follows:

the invention provides a blind area obstacle reminding system during vehicle steering, which comprises: 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 collected by an ultrasonic radar and steering operation information input by a driver, and a detection area of the ultrasonic radar comprises a predetermined area where a driver blind area 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 is determined to have the steering intention according to the steering operation information, the LCDA controller sends an alarm signal to an EPS controller in the EPS assembly through a GW gateway; the moving object is an object moving in the surrounding environment information acquired by the ultrasonic radar;

the EPS controller judges whether the 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 the steering wheel vibration reminding function is started or not;

if the steering wheel vibration reminding function is started, the EPS controller controls the motor vibration in the EPS assembly, and the motor vibration is transmitted to the steering wheel through the steering column mechanical structure, so that the steering wheel synchronously vibrates.

Preferably, the blind area reminding system further comprises:

a vehicle entertainment system HU;

the vehicle-mounted entertainment system HU is used for a user to start or close a steering wheel vibration reminding function; and for:

when the steering wheel vibration reminding function is started, a user adjusts 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 time, controlling the motor of the EPS assembly to vibrate according to the updated vibration intensity levels, wherein one vibration intensity level corresponds to one vibration frequency and one vibration period.

Preferably, after the alarm signal disappears for a preset time, the EPS controller of the EPS assembly controls the motor of the EPS assembly to stop vibrating.

Preferably, when receiving information of adjusting the vibration intensity level of the steering wheel by the user, the vehicle-mounted entertainment system HU feeds back an error prompt that the vibration intensity level cannot be updated to the user if detecting that failure information of the vibration intensity level cannot be sent to the EPS controller or receiving feedback information that the vibration intensity level cannot be adjusted and is fed back by the EPS controller, and triggers the EPS controller to record a corresponding preset failure code.

The invention also provides an automobile which comprises the blind area obstacle reminding system during steering of the automobile.

The invention has the beneficial effects that:

the vehicle can effectively avoid unknown risks brought by blind area moving objects in the driving lane changing process, greatly improves the driving safety of a driver, and meets the requirement of the steering wheel vibration reminding function.

Drawings

In order to more clearly illustrate the embodiments of the present invention and the technical solutions of the prior art, the drawings used in the description of the prior art will be briefly described below.

FIG. 1 is a system block diagram of a blind spot obstacle reminder system according to an embodiment of the present invention;

fig. 2 is a flowchart of the blind area obstacle reminding system according to the embodiment of the present invention.

Detailed Description

The following further illustrates the steps of the present invention:

as shown in fig. 1 and fig. 2, the present invention provides a blind area obstacle reminding system for vehicle steering or gear shifting, which comprises an LCDA controller, a gateway GW, an EPS assembly and an in-vehicle entertainment system HU.

Firstly, the LCDA controller judges whether to send out an alarm signal by receiving information detected by the ultrasonic radar to the surrounding environment and combining operation information to be steered left and right input by a driver.

Specifically, the detection area of the ultrasonic radar includes an area where a predetermined blind area of the driver is located, and whether a moving object exists in the blind area is judged according to detection information of the ultrasonic radar.

The LCAD controller judges that there is a moving object having a moving speed exceeding a preset speed in the blind area and the driver has an operation action of turning on the turn signal lamp (i.e., the driver is considered to have 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 does not turn the turn light, the LCDA controller does not send out an alarm signal.

In order to prevent the blind area obstacle reminding function from being frequently triggered due to frequent lane changing of the vehicle on a low-speed congestion road section, the experience feeling of a driver is poor, a speed limit value (preset speed) is set for the speed of a moving object detected by the ultrasonic radar, and only when the moving object higher than the preset speed is detected, the LCDA controller can send out an alarm signal.

Furthermore, because the EPS controller and the LCDA controller of the entire EPS assembly are not in the same network segment, a GW gateway needs to transmit left and right alarm signals sent by the LCDA controller to the EPS controller, and after receiving the alarm signals, the EPS controller needs to judge an EPS vibration available state signal. And judging whether the steering wheel vibration reminding function is started or not when the EPS vibration available state signal is available.

The steering wheel vibration reminding function is set by a driver in a soft switch in a wire harness interface of the vehicle-mounted entertainment system HU.

And information such as a vibration function switch signal and vibration intensity setting of the THU is required to be integrated, and then a vibration alarm request is sent out, so that the motor vibration of the EPS assembly is controlled.

The blind area vibration reminding function can be started, and a user can select the vibration intensity grade of the steering wheel, wherein the low intensity grade, the medium intensity grade and the high intensity grade are selected respectively. The vehicle-mounted entertainment system HU can also detect the fault state of the steering wheel vibration reminding function, and can feed back fault information to a driver if the fault occurs. Under the condition that the steering wheel vibration reminding function is normally triggered, 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 detect whether the alarm signal exists all the time, and if yes, the motor vibration will enter the next period to continue vibration after finishing one period; if no new alarm signal exists, the EPS controller controls the motor to finish vibration reminding after a period.

In addition, the system will continuously monitor for faults, and when a fault occurs, a fault code is generated, stored, and then indicated.

Based on the invention, the unknown risk caused by moving objects to the blind area can be effectively avoided in the process of changing lanes of the vehicle during driving, the driving safety of a driver is greatly improved, and the requirement of the steering wheel vibration reminding function is met.