CN105270259A - Steering wheel actively reminding device based on electric power steering system - Google Patents

Abstract

The invention discloses a device for actively reminding a driver of the driving environment based on a steering wheel of an electric power steering system. The device uses the electric power steering system to control the steering wheel to remind the driver of the problems in the driving process, making the driving process safer and more stable, and improving the car's maneuverability and ride comfort. It includes a steering wheel module, a monitoring module for monitoring road conditions, an electronic control unit module, an alarm module, and the like.

Description

An active steering wheel reminder device based on electric power steering system

Technical field:

The invention relates to an active steering wheel reminding device based on an electric power steering system, which is used for reminding a driver of information about obstacles ahead.

Background technique:

With the progress of the social economy and the improvement of people's living standards, the per capita car occupancy rate is getting higher and higher, and the car technology is getting more and more perfect, but the driver's driving comfort and the stability of the driving process still need to be improved. During the driving process, many drivers will answer the phone, take things, buckle the seat belt, etc. At this time, the driver will not notice the road ahead and cannot avoid road obstacles in time, resulting in bumpy driving and even traffic accidents.

The existing steering wheel reminder devices all use sound and light information to prompt the driver. The disadvantage is that the driver may not notice the sound and light information when distracted, which leads to the failure of the steering wheel to actively remind. Effect.

Invention content:

The purpose of the present invention is to provide an active steering wheel reminder device based on an electric power steering system to effectively remind the driver of the road ahead, so as to ensure a smooth driving process and prevent traffic accidents caused by driver distraction.

To achieve the above object, the present invention is realized according to the following technical solutions:

An active steering wheel reminder device based on an electric power steering system includes a monitoring module for monitoring obstacles ahead, an electronic control unit module, and an alarm module.

The monitoring module described in the technical solution is a vehicle-mounted radar that can reflect the unevenness of the road ahead, and is installed obliquely on the front bumper of the car. The vertical distance from the ground is h, and the driving speed of the car on urban roads is 60km/h to 80km/h. Between h, that is, between 17m/s and 22m/s, in order to give the driver and the vehicle enough reaction time, the present invention sets the radar’s prediction range to 100 meters ahead, so the tilt angle of the radar installation is equal to The horizontal angle is α.

The electronic control unit module described in the technical solution is an electronic control unit with a specific program added to the electronic control unit of the electric power steering system. The main content of the program is to process the obstacle information captured by the vehicle radar and control the The input conditions are analyzed, and then it is decided whether to issue a reminder message to remind the driver.

The alarm module described in the technical solution is a steering wheel and a voice reminder device installed on the steering wheel. The alarm mode is steering wheel vibration and voice prompts. The value of the driver's uncomfortable feeling, where a touch sensor is installed on the handle of the steering wheel. When the electronic control unit module receives information worthy of reminding the driver, the touch sensor on the handle of the steering wheel sends it to the driver's hands of the electronic control unit module. The information of leaving the steering wheel, then the electronic control unit module controls the voice system to send a voice to remind the driver.

Compared with prior art, the beneficial effect of the present invention:

1. Since the alarm information in the form of tactile sense can attract the driver's attention more than other forms of information, and the steering wheel is a device that the driver almost always touches during driving, it is better to use steering wheel vibration to remind the driver than other forms of reminder information. It is more effective. When the electronic control unit module receives information worth reminding the driver, the touch sensor on the handle of the steering wheel sends the information to the electronic control unit module that the driver leaves the steering wheel, and the electronic control unit module controls the voice system to make a voice Reminding the driver further ensures that the reminder information can be received by the driver.

2. The electronic control unit module adds a specific program to the original electronic control unit of the wire control system, without additional hardware equipment of the electronic control unit, avoiding redundant and complicated devices and reducing development costs.

3. The present invention can predict the road surface information ahead and reflect it to the driver, so that the driver's driving process is not in a hurry, reduces the probability of accidents when the driver is distracted, and optimizes the driving experience and riding experience.

Description of drawings:

Accompanying drawing 1 is the principle block diagram of steering wheel active reminding device among the present invention.

Accompanying drawing 2 is the schematic diagram of the working method of the steering wheel active reminder device in the present invention.

Accompanying drawing 3 is the schematic diagram of radar installation.

detailed description:

The specific implementation manner of the present invention will be described in detail below in conjunction with the accompanying drawings.

Referring to FIGS. 1 and 2 , an active steering wheel reminder device based on an electric power steering system according to the present invention includes a monitoring module 10 , an electronic control unit module 20 , and an alarm module 30 .

The monitoring module 10 is a vehicle-mounted radar capable of monitoring obstacle information. The installation method of the radar is shown in FIG. An electronic control unit with a specific program is added to the electronic control unit of the power steering system. The main content of the program is to process the obstacle information captured by the vehicle radar and analyze the input conditions according to the preset control components, and then decide whether to send a message to remind the driver The alarm module 30 is a steering wheel and a voice reminder device installed on the steering wheel. The alarm mode is steering wheel vibration and voice prompts. Value for comfort, where touch sensors are mounted on the steering wheel grip.

Referring to Fig. 3, the working process of an active steering wheel reminder device based on the electric power steering system in the present invention includes the following steps:

Step 100: the radar device monitors real-time obstacle information;

Step 200: The obstacle information is transmitted to the electronic control unit module for judgment; if the driver needs to manipulate the steering mechanism to turn, the output result of the electronic control unit module is yes, and then step 300 is executed; when the output result of the electronic control unit module is no , return to step 100;

Step 300: The alarm module will send out an alarm message; in this example, the steering wheel continues to vibrate until the driver manipulates the steering mechanism to avoid obstacles. information, the electronic control unit module controls the voice system to issue a voice to remind the driver until the driver manipulates the steering mechanism to avoid obstacles.

Claims (6)

1. the bearing circle prompting device based on electric boosting steering system, it is characterized in that, this device is based on electric boosting steering system, the obstacle information detected passes in electric boosting steering system electronic control unit module as monitoring device by radar, and obstacle information is passed to chaufeur by bearing circle according to default active warning control assembly by electronic control unit module.

2. a kind of bearing circle prompting device based on electric boosting steering system as claimed in claim 1, it is characterized in that, comprise monitoring modular, electronic control unit module, alarm module, wherein type of alarm is bearing circle sustained vibration and voice message, steering wheel vibration and amplitude will be set to an energy by chaufeur perception and don't the value that chaufeur can be made to produce human discomfort be subject to, wherein grab handle of steering wheel is provided with touch sensor, touch sensor when electronic control unit module receives the information of worth prompting chaufeur on grab handle of steering wheel issues the information of electronic control unit module chaufeur both hands departure direction dish, then electronic control unit module controls voice system sends voice reminder chaufeur.

3. a kind of bearing circle prompting device based on electric boosting steering system as claimed in claim 2, it is characterized in that, according to the hobby of different chaufeur can realize multi-mode warning, each pattern according to steering wheel vibration magnitude classification and the volume of voice message can arrange.

4. a kind of bearing circle prompting device based on electric boosting steering system as claimed in claim 1, it is characterized in that, when travelling in night darkness environment, radar can the obstacle that can't see of perception chaufeur, is reduced the obstacle of night driving by steering wheel vibration or voice message preceding object thing information.

5. a kind of bearing circle prompting device based on electric boosting steering system as claimed in claim 1, it is characterized in that, acquisition radar is arranged on the front bumper of vehicle, ground clearance is h, leaning angle is for being α with horizontal direction angle, by compare radar detection to the ratio A of topocentric horizontal throw S ground clearance h vertical with radar and the size B of cot α judge front road conditions, if A>B, then there is pit in front; If A<B, then there is projection in front.

6. a kind of bearing circle prompting device based on electric boosting steering system as claimed in claim 1, is characterized in that, comprise the following steps:

Real-time monitoring driving environmental information;

Obstacle information is passed to electronic control unit module;

Judging to have in driving environment is worth sending information when reminding the obstacle information of chaufeur.