Regarding the start of a motor vehicle, we may see that more of the key is needed to start, use the key to start and drive the car, but with the development of technology, a keyless start system has appeared. The system can start the car without using the key. It may sound very fashionable. At present, this technology is used in many types of cars. Of course, it is certainly loved by many people in the market. The keyless start system It can be said that the control of the car through the function of electronic induction is indeed very magical, and the convenience is also very prominent, but there are always two sides to the appearance of the same thing, and the keyless start system is also the same. Some problems were also found in the process. The editor of Pickup China will introduce you the relevant information of the keyless start system in detail. Is this system tasteless or a very good product.

Keyless start system

1. What is the keyless start system

In the past, we drove like this: insert the key into the door lock and open the door; sit in the car, insert the key into the power lock under the steering wheel, turn it slightly, and start the car. Later, with the anti-theft lock, we can open the door without inserting the key. Just press the unlock button of the anti-theft key to enter the car. Now, we can always put the key in our pocket, and when we are close to the car for a certain distance, the door lock will automatically open; when entering the car, just press the start button (or knob), and the car will start to ignite. This function is the currently popular "keyless entry system."

2. Principle of Keyless Start System

The keyless start system uses the most advanced radio frequency identification (RFID) technology to automatically switch the door lock through the chip in the smart card carried by the owner. That is to say, when the driver approaches the vehicle for a certain distance, the door lock will automatically open and Release the anti-theft; when the driver leaves the vehicle, the door lock will automatically lock and enter the anti-theft state. Generally, a vehicle equipped with a keyless entry system has a sensor button on the door handle and a key hole at the same time, so that when the smart card is damaged or the power is out, the owner can still open the door in a normal way. When the car owner enters the car, the detection system in the car will immediately recognize your smart card, and the computer in the car will enter the working state after confirmation. At this time, you only need to gently press the start button (or knob) in the car , You can start the vehicle normally. That is to say, whether inside or outside the car, it can ensure that the system can correctly identify the driver under any circumstances.

3. Advantages of keyless start system

1. The ultimate experience, bringing high-end enjoyment

Keyless start is an intimate little helper, giving you a different VIP experience. When you approach, it unlocks, you forget to close the window, it closes, and when you walk away, it locks. Completely eliminate your worries, how can people not love it!

2. Security is doubled, and the electronic key cannot be copied

Using the fourth-generation radio frequency identification technology (RFID) chip, make your key unique. Even if someone attempts to copy the key, the 4S shop will not prepare it without a legal document, which greatly increases security.

3. Save time and convenience, bid farewell to the trouble of finding keys

When you come out of the supermarket with a few bags full of food in both hands, how do you free up your third hand to find the key in the bag? With the keyless start system, all you have to do is to open the door directly and return with a full load. .

4. Disadvantages of keyless start system

1. Magnetic field interference is dangerous

Since the smart key uses low-intensity radio waves, the chip is prone to not work properly when it is interfered by other frequencies. If the smart key is put together with the mobile phone while driving, it is easy to cause the remote control function of the key to fail.

2. Keep your distance, otherwise anyone can drive away

If the key is accidentally located in the detectable area, and your sight goes away, if you do not pay attention, your car may be gone forever.

3. The human key is separated, and the car is basically abandoned

Driving to give people away, the passengers accidentally took the car keys when they got off the car, so no matter where you were when you found out about it, don't choose to turn off the engine, otherwise you won't be able to start it again.

Five, keyless start system function

1. Identify the owner

Each smart key has a unique ID code corresponding to the vehicle ID code. Even if the key is simply copied, the vehicle cannot be started without the ID code. Only when the car owner enters the car, the detection system in the car will immediately recognize your smart card, and the computer in the car will enter the working state after confirmation. At this time, you only need to gently press the start button (or knob) in the car , You can start the vehicle normally.

2. Smart ignition

Usually, the driver needs to insert the key into the car ignition key hole to start the engine. The keyless start mode of the smart key makes this all easier. The function of the smart key is to make the engine recognize whether the operator is the owner of the vehicle and enter the standby state before starting at any time. When the engine needs to be started, as long as the smart key is in the detectable area, the driver can press the start button or twist the rotary button to start the engine.

3. Automatically unlock

The door lock is automatically opened and closed by the chip in the smart card carried by the owner. When the owner approaches the car, the key and the car begin to exchange the command information that has been set via radio waves. Immediately the car's shutdown system and safety system as well as the engine control system were all activated. That is to say, when you approach the vehicle a certain distance (usually 1 meter), the door lock will automatically open and release the anti-theft; when you leave the vehicle, the door lock will automatically lock and enter the anti-theft state.

Six, keyless start system type

1. Knob type

It is usually located at the original key socket, but there is no need to insert the car key, just turn the knob to start, such as Nissan, Mazda, etc.

2. Button type

The ignition button is located within reach of the center console, so it is also called "one-key start button type and knob type operation", such as BMW, Mercedes-Benz, etc.; original address: http://www.pikacn.com/news/201611/ 5318.html

Seven, keyless start system security

When the car owner enters the car, the detection system in the car will immediately recognize your smart card, and the computer in the car will enter the working state after confirmation. At this time, you only need to gently press the start button (or knob) in the car , The vehicle can be started normally, and its safety mainly includes the following contents.

1. Automatically close the windows after locking the car

After the car owner gets off the car, if he forgets to close the window, he does not need to restart the engine and close the window. The vehicle security system will automatically raise the window, which greatly improves the safety level of the car. In the event of rain and other accidents, the smart key system saves you from worrying about forgetting to lock the door every time you leave the vehicle.

2. No false alarm

The product adopts the most advanced anti-collision technology, which greatly enhances the reliability of the system.

3. Vehicle anti-theft

By locking the circuit, oil circuit, and starting three points, when the anti-theft device is illegally removed, the vehicle still cannot start.

4. Complete password identification device

The fourth-generation radio frequency identification technology (RFID) chip is adopted, which completely meets the requirement of being unable to be copied. At present, the chip-type anti-theft device and the original car configuration chip anti-theft device on the market are basically the second or third generation chips, and they have not completely solved the problem of being copied.

5. Intelligent identification of car owners

When you enter the vehicle, the vehicle can recognize the real owner. If the owner is not in the vehicle, the vehicle will not start and call the police immediately.

6. Four doors automatically lock

When you get in the car and start the car, the first step brakes and the four doors will automatically lock. When traffic jams in the city or when traveling alone at night, prevent accidents such as bag-carrying and be foolproof.

8. Questions about using the keyless start system

Some car owners (especially for the first time buying a car) face the keyless entry/start system configuration. In fact, it is a very convenient function. Because the car owner is not familiar with the characteristics and usage of the keyless entry/start system, there are some problems of this kind or that in use. The following will take you through some practical cases to solve all kinds of doubts and let you thoroughly Feel its temper.

1. Why there is no response when I press the search button

People often ask, I just bought a new car, press the small horn-shaped car search button, but the car does not respond, is there a quality problem? In fact, it is not, this is because you did not understand the operating methods. When some people press the car search button, there is no response when they click it, and they will press it several times quickly. In fact, this operation is wrong. The correct way is to press and hold the car search button. When the door is locked, press and hold the car search button for about 5 seconds. Then the car search button will work normally. The vehicle turn signal flashes first, and then the horn buzzes 3 times. .

2. Why pull the rear door to test whether the car is locked

After locking the car, many car owners will habitually pull the door for verification. If this is done, we need to make sure that the car key is not within the scope of the external certification area of ​​the vehicle. The easiest way is to walk to the rear door (leave the certification area) ), pull the rear door to verify. If you take the car key and pull the front door of the car for testing, the result can only be that the door is opened.

3. The meter shows that the key cannot be detected, can the engine be started?

When the key is out of power or the internal low-frequency antenna fails, even if the key is in the internal authentication area, the system will still prompt "No key detected". At this time, the keyless start fails. You can try the emergency start method: stick the smart key to the start-stop switch 3s, step on the clutch (AT model brake) and press the start-stop switch to start the engine.

4. How to lock the car when the key is out of power or the whole car is powered off

When the key is out of power or the vehicle is powered off, we can no longer rely on the electronic system to lock the car. At this time, we need to lock the car mechanically. The driving door can be locked directly by inserting the mechanical key; other doors need to find the emergency lock hole, use the key or other suitable tools to insert the emergency lock hole, turn left and right to turn on or off the emergency lock function, and then directly close the door. The door can be locked; the back door can be locked by directly closing.

5. Can you enter or lock the vehicle without a key while wearing gloves?

It is common to wear gloves in winter, but some car owners may encounter failures when opening doors or locking the vehicle while wearing gloves. This is because thick gloves will affect the recognition of the two sensors on the door handle, thereby affecting the locking and unlocking of the vehicle.

6. Why does the keyless entry "failure" after parking the car for a long time

For example, when you are on a business trip for a few days and then use the keyless entry, you find that the malfunction does not work. This is because when the car is parked for a period of time, the smart entry system will enter the power saving mode and stop working. If you use the keyless entry again, you can only use any key on the key to cancel the power saving mode before it can be used normally. There are two situations in the power saving mode as shown in the figure below.

7. Why sometimes I can’t open/close the car door with a smart key?

In this situation, it is often because you made a mistake in driving the door or locking the car, but you are completely unaware of it. When you pull the door handle and touch the small groove of the door handle at the same time, you cannot open the door or lock the car. Because there are two sensors on the door handle: the lock sensor and the unlock sensor. When opening the door, when we pull the door handle, we will touch the unlock sensor inside the door handle, which triggers the system to unlock; and after closing the door, when we touch the door When the small groove on the outside of the handle touches the lock sensor on the outside of the door handle, the system lock is triggered. If we touch two sensors at the same time, we will not be able to lock or unlock the operating system.

8. Why can't I enter smartly with the key?

Some car owners want to open the rear door directly with a smart key, but they find that it cannot be opened, so they question: No, isn’t it a good smart entry? In fact, this system has a certain authentication area, which must be in a valid authentication area. A legal key is detected inside, and it is impossible to enter and start normally beyond this area. The certification area is divided into external and internal certification areas. The external certification area is within 1.5m of the handle of the external department. Because the rear door is beyond the authentication area, when the owner stands next to the rear door with the key and tries to open the door, he cannot unlock the vehicle.

9. Is the metal piece on the car key useful?

After some car owners got the keys, they found that the two keys also had a metal piece with numbers engraved on them. Many people might think it was information similar to the production serial number, so they didn’t care about throwing them away. . In fact, this metal piece is engraved with a key code. This information can be used to allocate keys. When the key is lost, only this code can be used to request the key from the car service provider. Especially after the two keys are lost, if there is no key code, the key cannot be equipped. In this case, the whole car lock can only be replaced, and the cost will be greatly increased.

10. Keyless entry, is it necessary to enter without a key?

The so-called "keyless" does not mean that the vehicle does not have a key, but that the ordinary mechanical key inserted into the ignition switch to start the vehicle has become a smart key that can be identified by radio frequency technology to start the vehicle. Hold this key close to the car door, no need to operate the key, you can open the door handle by pulling the door handle; after getting in the car, you don’t need to insert the key into the key hole, just press the start button to start the car; after leaving the car, you don’t need to operate the key, press the door The handle can lock the car. In fact, keyless entry, to put it more bluntly, is that the owner does not need to take out the key to operate, eliminating the need to take out the key and start with the key, but needs to carry the key with him.

IX. Precautions for using the keyless start system

1. Do not touch metal objects

Many car owners are accustomed to putting smart keys together with other keys or accessories, but they do not know that if they touch or are covered by metal objects, the smart key may fail. At the same time, other items may also cause damage to the smart key during the bumps.

2. Do not use the wrong battery

It is necessary to be cautious when changing the battery of the smart car key. Once an error occurs, the circuit board in the key will burn out. Experts suggest that the car should be replaced by a professional 4S shop as much as possible. If you want to be cheap, go to an irregular shop to repair it, and you will lose more than you gain if the key is damaged.

3. Do not put the spare key in the car

Once the smart key is improperly kept and lost, it will bring a lot of trouble, and the cost of rematching is higher. Experts advise that spare keys should not be placed in the car or together with the smart key.

For the smart sensor key, when changing the key, you need to modify the computer parameters and re-match the set of new keys. The owner needs to provide proof of vehicle and identity, and the manufacturer must issue the corresponding parameters or password of the model. After the replacement, the lost key cannot be restarted. engine. Another solution is to replace the entire vehicle lock. This method is more secure, but the maintenance cost and maintenance time cost are higher.

4. Don't litter

Experts emphasize that the internal circuits of most smart keys have weak impact resistance and are easily damaged in severe collisions. In addition, when the smart car key enters water, the internal circuit will be burned out, and the remote control will also fail. In addition, be careful not to put the smart key under the windshield or other high-temperature environments that are easily exposed to direct sunlight.

5. Don't put it together with electronic devices

According to experts, under normal circumstances, the original battery of the smart key can be used for about two years, but if the smart key suffers severe electromagnetic interference, it will also fail. "In some environments, electromagnetic interference is relatively strong. The wireless communication between the smart key and the vehicle is affected by electromagnetic waves.