There are many rains in summer, and the wiper is directly related to driving safety. Many car owners have had troubles adjusting the speed of the wiper in the rainy days - too slow to brush the rain, too fast and affect the line of sight, which is not good for driving safety.
This article refers to the address: http://
With the increasing popularity of rain-sensing wipers, the troubles of car owners in rainy days can be solved.
Wiper automatically adjusts frequency with rainfall
Rain-sensing wipers are mainly used in high-end cars and luxury cars. They have become popular in recent years and can be seen in many high-end models of mid- to high-end and even mid-size cars. Because it can greatly improve the convenience of driving in rainy days, it has been widely welcomed by car owners.
Song Zhengbin, technical director of 4S shop, told the reporter that taking the Volkswagen model as an example, the rain sensor is hidden behind the rear view mirror and fixed on the front windshield. It is equipped with a forward infrared radiation receiving device composed of LEDs, which determines the amount of rainfall according to the reflection of infrared rays, and then automatically adjusts the frequency of the wiper action. The rain sensor makes stepless adjustment of the speed of the wiper, completely synchronized with the weather conditions, avoiding the driver's trouble of manually adjusting the wiper frequency according to the size of the rain. This function is especially convenient in the rainy summer.
The more "smart" wiper speed guarantees safety and minimizes damage to the front windshield by the wiper.
At present, the main sensors equipped with rain-sensing wipers are Sagitar, Peugeot 307, Bora, Excelle, Yuda, Accord, etc. The high-altitude models of Shanghai Volkswagen, Tiguan, Touran and LaVida are equipped with rain-sensing wipers.
So, how do you know if a car is equipped with a rain sensor wiper? In addition to viewing the configuration table, the owner can also see the combination of the rear view mirror and the windshield. If it is square and has a hole in the middle, then It is equipped with a rain sensor.
Motor and wiper life is longer than conventional
The car advocate told reporters that when buying a car, the salesman introduced the car as a rain-sensing wiper, but I always thought that this automatic wiper was not very cool. I feel that I can't understand the law. There are often situations where water is not brushed in time, and few rains are swiftly brushed. What is the reason?
In this regard, Song Zhengbin introduced that the principle of the rain sensor is to use a sensor composed of a light-emitting diode and a photodiode to determine the amount of rainfall based on the amount of light reflected, and automatically determine the rain interval. So what Mr. Zhang said may be related to light. If the light is good and does not affect driving safety, the speed of the wiper may not increase. On the contrary, even if there is a small amount of water on the glass, there is something to block the light, and the induction wiper will work.
In addition, because the rain sensor system has the characteristics of protecting the wiper arm and the wiper, the induction system will not work under the following conditions: 1. Low temperature wiper suppression: When the ignition coil is turned "ON" for the first time, the vehicle does not move. When the outside temperature is lower than 0 °C, the rainfall sensing system does not work. Second, the neutral wiper suppression: When the ignition coil is in the "ON" position, the shift lever is in the "N" position, and the vehicle speed is lower than 8km / h, the rainfall sensing system does not work.
As for the maintenance of the rain sensor wiper, Song Zhengbin introduced that there is no difference with the ordinary wiper. Moreover, the intelligent boneless wiper can greatly reduce the jitter wear, and has the advantages of uniform force, anti-sun, light weight, etc. The wiper motor and the blade life are longer than the traditional wiper, and more economical and reliable.