There is a lot of rain in summer, and the wiper is directly related to driving safety. Many car owners have the trouble of having to adjust the speed of the wiper on a rainy day-too ​​slow to clean the rain, too fast and affect the line of sight, which is detrimental to driving safety.
With the increasing popularity of rain-sensing wipers, car owners' troubles in rainy days can also be solved.
The wiper automatically adjusts the frequency with the amount of rain
Rain-sensing wipers are mainly equipped on high-end cars and luxury cars. In recent years, they have been gradually popularized, and can be seen on many high-end models of even middle-to-high-end cars. Because it can greatly improve the convenience of driving on rainy days, it is generally welcomed by car owners.
Song Zhengbin, the technical director of the 4S store, told reporters that taking Volkswagen models as an example, the rain sensor is hidden behind the inner rearview mirror and fixed on the front windshield. Equipped with a forward infrared emitting and receiving device composed of an LED, the amount of rain is judged according to the infrared reflection, and then the frequency of the wiper action is automatically adjusted. The rain sensor makes stepless adjustment of the speed of the wiper, which is fully synchronized with the weather conditions, avoiding the driver's trouble of constantly adjusting the wiper frequency manually according to the size of the rain. This function is particularly convenient in rainy summer.
The more "smart" wiper speed not only guarantees safety, but also minimizes the damage of the wiper to the front windshield.
At present, the mid-level cars are equipped with rain-sensing wipers mainly including Sagitar, Peugeot 307, Bora, Excelle, Tiida, Accord, etc., and the high-end models of Shanghai Volkswagen Lingyu, 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 looking at the configuration table, the owner can also look at the junction of the rearview mirror and the windshield in the car. If it is square and has a hole in the middle, then it is Equipped with rain sensor.
Motor and blade life longer than traditional
Mr. Che advocate told reporters that when buying a car, the salesperson introduced that the car is a rain-sensing wiper, but he has always felt that this automatic wiper is not very comfortable to use. I feel that I can't figure out the regularity. There are often cases where the water is not brushed in time and there are few rain drops but the brush is applied quickly. What is the reason?
In this regard, Song Zhengbin introduced that the principle of the rain sensor is to determine the amount of rain based on the amount of light reflected by the sensor composed of light-emitting diodes and photodiodes, and automatically determine the wiper interval. Therefore, what Mr. Zhang said may be related to light. If the light is good and does not affect driving safety, the wiper speed may not be accelerated. Conversely, even if there is a small amount of water on the glass, but something blocks the light, the sensor wiper will work.
In addition, because the rain sensor system has the characteristics of protecting the wiper arm and the wiper, the sensor system will not work under the following conditions: 1. Low temperature wiper suppression: when the ignition coil turns to "ON" for the first time, the vehicle does not move. And when the temperature outside the car is lower than 0 ℃, the rainfall sensing system does not work. 2. 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 less than 8km / h, the rain sensing system does not work.
As for the maintenance of rain-sensing wipers, Song Zhengbin said that there is no difference from ordinary wipers. In addition, the intelligent boneless wiper can greatly reduce jitter and wear, plus the advantages of uniform stress, anti-sun exposure, and lighter weight. The wiper motor and wiper blade have longer life than traditional wipers, and are more economical and reliable.
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