Good day to all! Today we will talk about such a device as an electric trunk lid or simply a rear door. Here you can call it whatever you like. The essence remains the same.
Many modern cars have a function that allows you to remotely and automatically open the luggage compartment. Everyone imagines what it is like when you don’t have to lift the lid manually. Therefore, many decide to install a similar element on a sedan, hatchback or other car body with a similar device.
The presence of an electric drive will significantly simplify closing and opening the trunk. Now there is a real opportunity to buy a universal set, connect it to your car and use it with pleasure and excellent comfort. I propose to study this issue in more detail and decide whether an electric drive is right for you.
Device Features
To open the trunk remotely, automakers use two main methods. The first involves installing an electric drive in the cover, and the second involves the use of pneumatic drives. The latter option is considered more reliable, but also more expensive.
The lid can also be controlled using an electric drive in various ways. This can involve buttons on the dashboard, buttons on the doors, handles on the trunk itself, and remote controls. Each option, in principle, looks attractive and potentially convenient. Therefore, the motorist needs to decide for himself what kind of result he wants to get. It is important to understand that the remote control is convenient, but it can be easily lost. Plus, the installation involves a very complex set of works. Because of this, the most optimal option is to locate the button inside the car interior.
The electric drive device includes several main components. The drive with an electric motor is quite practical, reliable, durable and hardy under active conditions. Less commonly, you can find drives that use magnetic plates. The design is more complex and can create a number of additional problems. It's better not to use them.
The undeniable advantage of the device is that it is quite possible to install it yourself, and on almost any car. If you read various forums, study the work of various craftsmen, of which Moscow alone includes several hundred, as well as the whole of Ukraine, you can see clear examples of the implementation of electric drives on a wide range of car models and brands.
For clarity, I will give several examples where such a system is available from the factory or can be installed on your own:
- Audi Q5;
- Kia Optima;
- Mercedes W211;
- Volkswagen Touareg;
- Chevrolet Niva;
- VAZ 2170 (Priora sedan);
- Lada Vesta SV;
- Ford Kuga 2nd generation;
- VAZ 2114;
- VAZ 2115;
- VAZ 2104;
- Lada Granta;
- Skoda Superb, etc.
There really are a lot of options. It is almost impossible to list everything. That is, you understand that you can install an electric trunk lid on any car.
Luxury or necessity
The automatic trunk opening feature is found in many new cars. Drivers like this feature, because you quickly get used to good things. To open the luggage compartment in a car, just press a button in the cabin. The lock comes into operation as a result of the operation of the electric drive.
This feature may seem like a small thing and an insignificant addition until the cold weather arrives. In cold weather, the lock on the trunk often freezes, making opening the compartment a difficult task. You have to spend time defrosting the mechanism. In the case of an electric drive, such problems will not arise. Also, such a mechanism makes car hacking more difficult, which is also an important advantage.
Mostly imported cars are equipped with this function, and not all of them. Domestic manufacturers have only recently begun to equip their models with such functionality. Every car owner can equip his car with an electric drive for the trunk. This will not be difficult to do, but you will still have to tinker.
Kit selection
Installation will not be possible if you do not have at your disposal a set of equipment necessary for installation. Buying it is not difficult, but you need to think about which specific option is best for you.
In total, 2 solutions to the current situation are being considered. Namely.
- Factory set. Purchased from trusted and reputable manufacturers. The kit contains almost everything you need, so you don’t have to assemble different elements. But the price is naturally higher;
- Amateur kit. Here we are talking about independently preparing all the necessary components. The motorist is faced with the question of where exactly to get them and how to choose a set so that everything fits. It is difficult to do this without relevant experience and certain knowledge. But you can save a lot of money financially.
I don’t know what exactly you will choose, but I want to give one piece of advice. Buy an electric drive equipped with an inertia mechanism. This will allow you to turn off the drive when an obstacle appears in the path of the luggage compartment lid. Roughly speaking, the drive will not pinch your hand or head when you poke around in the trunk.
So the inertial mechanism is a very useful thing.
If we talk about assembling a homemade kit, then it is important to collect several basic elements. These include:
What do you need for work?
A similar connection diagram for the trunk button attracts many.
To realize your idea, you need to prepare materials and tools.
The set consists of:
- electric drive (activator) of the luggage compartment lock;
- universal 4-pin relay;
- fuse blocks;
- fuse;
- wires;
- female type terminals;
- trunk opening buttons;
- heat shrink tube;
- electrical tape;
- plastic clamps.
The block is placed for safety reasons. Mounted on the positive wire. The fuse can be taken as standard, 10 Ampere. Do not need anymore.
Determine the length of the wiring individually. But practice shows that 5-6 meters is enough with a margin.
Take the opening button from ten. It is considered the most reliable and also affordable. If you are tuning a domestic car, then it will definitely fit.
At any car market it will not be difficult to buy the entire set. It will cost 600-800 rubles. Maximum 1000 rubles.
Fine for driving a car or other vehicle without a license
- power window module 2 pieces;
- 2 mechanisms for lifting glass;
- wires;
- diodes;
- electromagnetic relay;
- five-pin relays;
- four-pin relays;
- Relay connection block;
- springs for the lid lock;
- power tools;
- wiring;
- nuts, bolts;
- Bulgarian, etc.
As you can see, the set is quite impressive. Therefore, consider whether it is worth trying to assemble the kit yourself. Sometimes it is much easier and even more economical to purchase a ready-made factory kit with a guarantee and all the associated benefits. Price does not always play a key role.
Connection Tips
Before doing any wiring or electrical work, you must first remove the battery from the vehicle. It is advisable to prepare the required connection diagram for the electric trunk lock in advance before starting installation work. In factory kits, it should already be available or included in the car’s operating instructions. On the Internet you can now also find many similar schemes with detailed recommendations for their implementation. Most car models have a 12-volt power supply, but it is better to clarify this nuance.
Much attention should be paid to wiring. The correct operation of not only the electric trunk drive, but also the entire electrical system of the car as a whole largely depends on this. If you treat this issue negligently, then at best there will be malfunctions, and at worst a short circuit may occur, after which it will be difficult and expensive to restore the vehicle’s functionality. For already proven routes, try to use the standard places for laying wires provided by the manufacturer. For additional protection, you can use corrugated tubes and plastic cable ducts of the required size.
Installation
I can’t say that installing an electric drive is something incredibly difficult. In fact, anyone who knows how to work with bench tools, a soldering iron, and also knows the difference between transistors and diodes can implement such a mechanism.
The installation process roughly looks like this:
Roof rack VAZ 2107
If the “seven” is often used to transport various cargoes, then, as a rule, the standard trunk is not enough. In this case, it is convenient to use a special roof rack. Oversized cargo can be secured on this structure. Before choosing a product, you need to find out the dimensions of the elements that can be placed on the trunk. Long materials such as boards, sticks, pipes, if their length is up to 4.5 meters, may not be marked with red flags. If the cargo exceeds the dimensions of the vehicle, i.e. protrudes beyond the front and rear bumpers, it must be marked with special red flags that inform other road users about the transportation of oversized cargo.
What types of luggage racks are there?
On the roof of the VAZ 2107 you can install a roof rack of both the old type and the modern type. The standard “Zhigulevsky” trunk has dimensions of 1300*1050*215 mm, and its load capacity is up to 50 kg. This structure is fastened to the roof gutters using bolts. In general, roof racks can be divided into 3 groups:
The first option is universal. The product consists of transversely and longitudinally directed metal beams with a square or round profile.
The closed trunk is a trunk (box). The main advantage of this design is the protection of the transported cargo from bad weather.
The product, made in the form of racks, is used for transporting bicycles and other equipment. This design is used less frequently, but the load can be fixed on it easily and reliably.
Categories of rights to drive trailers - trailer weight up to 750 kg
- It is necessary to modify the purchased mechanism, remove the motor and rotate it so that it can function along the rack. Using a grinder removes all excess;
- Using a perforated metal blank, a fastening strip is made from it;
- The rack and drive motors are fixed to the bar. This design is mounted on body panels;
- One end of the window regulator mechanism, which was not used, is mounted on the trunk lid holder;
- Then everything is adjusted together and brought to the desired position;
- Think in advance about how you will lay out the wiring harness so that the wiring does not fray or become damaged;
- The connection diagram is selected based on the selected set. Ready-made kits have a special scheme, that is, you need to act strictly according to it;
- Connection to the power source is carried out with a separate cable, which is connected to the battery;
- A separate fuse is used for the power circuit;
- A button is mounted in the cabin in a place convenient for the driver.
In terms of ease of installation, it is much more convenient to work with ready-made factory kits. The manufacturer includes detailed instructions, following which you can do everything in just a couple of hours and enjoy the result.
Whether the financial and time costs are worth it, everyone decides for themselves. After all, before we somehow managed without an electric drive on the trunk. You can continue to live without him. And if you want, then no one forbids or prevents you from installing the kit.
Do you think a car needs an electric drive for the trunk lid and what benefits does it bring? Share your opinion, experience in operating such equipment and ask pressing questions.
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Electric drive: easy installation option
The technique is simple, the only thing needed is to make a rotating plate and a rod for it yourself. The wiring should be routed to the electric lock and connected to a special control unit. When disarming the car, the electric trunk lock will be activated after the fifth door opening button is unlocked.
The entire installation task is based on connecting the electric lock to two wires. You can purchase the part at any auto store. The trunk end must be additionally hidden to prevent water from getting into it. Otherwise, it will periodically short out during rain.
An important attribute is the trunk hinges. Wires are often broken in this place, so their condition must be carefully monitored.
Before installing the electric drive, the trunk lid trim is removed. The main thing is not to damage it during this process. It is recommended to choose a lock that will not need to be modified during operation.
An important step in the installation process is wiring; you can use those wires that are standardly suitable for the fifth door of the car.
Power is taken from the cigarette lighter. An important point is the installation of a protective fuse. The wire is laid along the threshold; it will take approximately 3.5 meters. Then the installation takes place.
System TIDA-01424
The block diagram of the TIDA-01424 reference project is shown in Figure 3. The main elements of the board are two PGA460-Q1 ultrasonic rangefinder microcircuits, which perform all the main work associated with analog signals.
Rice. 3. Block diagram of TIDA-01424
The measurement results, which are essentially the distance to each object detected by the sensor, are compared to user-defined optimized threshold levels and used to make subsequent decisions. The flexibility of the system is due to the ability to receive digital data directly from the PGA460-Q1 rangefinders via the USART serial interface and use them as input data for the gesture recognition algorithm.
The main components of the analog part of the system, including two rangefinder chips PGA460-Q1 with matching ultrasonic transformers and other necessary wiring, a 3.3-volt LDO stabilizer TPS7B6933-Q1 and a TPS3700-Q1 monitor with a power intelligent power switch TPS1HA100-Q1 are mounted on a compact double-sided BoosterPack format board. A special feature of this form factor is the presence of a 20-pin connector, which carries USART signals and several standard input/output ports (GPIO). This connector is fully compatible with LaunchPad microcontroller boards manufactured by Texas Instruments. It is on such a board, running the MSP430F5529 microcontroller, that the rangefinder signal processing algorithms are implemented, the source code of which is available for free download on the Texas Instruments website.
The system is powered by a standard 12-volt battery. At the same time, the system has protection against polarity reversal, undervoltage and overvoltage, and can easily withstand overvoltages of up to 40 V, which arise, for example, during problems in the vehicle’s on-board network.
In passive mode, with the ultrasonic emitters turned off, the current consumption of the system is less than 100 μA, which allows it to be connected directly to the battery without the risk of significant discharge of the latter.
All system components are designed for use in automotive applications and have a corresponding temperature range of -40...105°C.
The overall system consists of two boards (analog signals and a microcontroller), indicated in blue in Figure 3, and requires the connection of only three external components: two ultrasonic sensors and a power supply. The main technical characteristics of the system are given in Table 1.
Table 1. Main technical characteristics of TIDA-01424
| Parameter | Meaning |
| Number of ultrasonic transceivers | 2 |
| Type of ultrasonic emitters | Sealed with transformer control |
| Operating supply voltage range, V | 6…18 |
| Permissible supply voltage range, V | -20 (reversal of polarity)…40 (sharp loss of battery load) |
| Current consumption in operating mode, mA | no more than 40 |
| Current consumption in off mode, µA | no more than 50 |
| Object detection range, mm | 200…500 |
| Gesture duration, s | 1…4 |
| Sampling rate, samples/s | 5…40 |
| Printed circuit board | Double-sided, BoosterPack form factor |
Let's figure out why the throttle gets clogged
Like any vehicle component, the throttle valve must be serviced periodically. A common problem with this unit is blockage.
The throttle can become clogged for several reasons:
- Dust on the roads. Despite the location of the damper after the air filter, dust particles still enter the throttle air duct. If the filter itself is already dirty, then larger dust fractions enter the choke.
- Crankcase ventilation. On many modern cars, crankcase gases are cleared of oil in the oil separator and enter through the throttle into the intake system along with ordinary air. This principle is being implemented to comply with environmental standards.
- Exhaust gas recirculation. This system began to be used relatively recently, but has already become popular among automakers. The exhaust gases from the exhaust manifold again flow through the throttle into the intake for afterburning.
Now imagine that oil particles from the crankcase gases combine with dust and/or carbon particles from the exhaust gases. A dirty, oily film is formed, which constantly settles on the damper. After tens of thousands of kilometers, a layer of this dirt will disrupt the operation or completely disable the throttle assembly. Therefore, periodic cleaning of the throttle body is important for proper engine operation.
Summing up
Finally, it is worth noting that electromechanical tailgate locks have become increasingly popular among car enthusiasts in recent years. If such a lock is not structurally provided on the car, then the owners install it themselves, thereby increasing the comfort of using the car.
Good day to all! Today we will talk about such a device as an electric trunk lid or simply a rear door. Here you can call it whatever you like. The essence remains the same.
Many modern cars have a function that allows you to remotely and automatically open the luggage compartment. Everyone imagines what it is like when you don’t have to lift the lid manually. Therefore, many decide to install a similar element on a sedan, hatchback or other car body with a similar device.
The presence of an electric drive will significantly simplify closing and opening the trunk. Now there is a real opportunity to buy a universal set, connect it to your car and use it with pleasure and excellent comfort. I propose to study this issue in more detail and decide whether an electric drive is right for you.
What external “symptoms” indicate that the damper is dirty?
Problems in the operation of the throttle assembly do not always arise only due to the formation of deposits on the valve. These can be caused by failure of the position sensor, malfunctions of the drive and other malfunctions.
Even if you are not sure that the cause of the malfunction lies in the throttle valve, it is worth checking this unit and cleaning it in order to delay as much as possible the moment of formation of deposits, which sooner or later destabilize the operation of the engine.
If a problem arises with the electronic throttle, it is better to contact a service center - specialists will help you figure out its causes without the risk of damaging the mechanism.
