Purpose and installation of electric power steering on a VAZ 2107

On the VAZ "classic" the installation of power steering is not provided from the factory. However, the owners of these cars experience certain inconveniences in driving at low speeds due to the tight rotation of the steering wheel. To make control easier and more comfortable, you can install an electromechanical amplifier on the VAZ 2107.

• Operating principle of an electric amplifier
• Which EUR to install on a VAZ 2107
• What is included in the scope of delivery of the electric amplifier?

  How to install

  Video: installation of EUR using the example of VAZ 21214

Purpose and principle of operation of the device

Partial dismantling of the torpedo for installation of the power steering

Before starting this work, you should find out the principle of operation of the EUR. Power steering is an important element in driving any car. Its task is to create additional forces when turning the steering wheel due to the presence of an electric drive. Modern cars have electric power steering.

Its main advantages for auto mechanics include:

• convenient adjustment of technical control characteristics,
• presence of high information content,
• reliability,
• significant savings in fuel used.

It should be noted that the EUR has 2 schemes: transmitting the forces of the electric motor to the steering shaft or the steering wheel rack. Auto mechanics distinguish 2 systems of such an amplifier.

1. With 2 gears presented as a single unit, which integrates the steering structure and power steering. The last element contains an asynchronous type electric motor. The rack is equipped with 2 sections of teeth, one of which is considered the amplifier drive.
2. With parallel drive - transmits forces from the electric motor to the steering structure through a belt drive. In this case, the force is simultaneously transmitted to the steering wheel rack and to the shaft.

Return to contents

Introduction

The VAZ-2107, to which thousands of compatriots are accustomed, is inferior in several respects to its foreign counterparts, which is why motorists who want to improve the characteristics of their own car do their own tuning of the VAZ-2107 steering. A thoughtful and correct tuning solution can be considered the installation of a hydraulic booster or electric power steering. Thanks to competent modernization, a unit will appear in the car, through which additional force is created on the wheels when entering a turn. The improvements made will bring domestic cars closer to the class of more expensive foreign cars.

The structure of the steering rack and mechanism of the VAZ 2107

Main parts of power steering

The main elements of this design include:

• torsion bar and steering shaft,
• electric motor,
• ECU,
• non-contact torque sensor,
• rotor position sensor.

As for the control of the EUR, it consists of the following elements.

1. Input sensors directly related to torque and steering angle determination.
2. Executing device - it receives control signals that are generated by a special program.
3. Control unit - processes the signal from existing sensors.

Amplifier assembly

The electric power steering provides control of the car in the following modes:

• when turning,
• turning at low and high speeds,
• returning the wheels to the middle position and maintaining them in this state.

Installation of an electric power steering on a VAZ 2107 is necessary, since the steering wheel is turned with the help of this device. Due to the torsion bar, torque is transmitted to the steering system. In this case, the twist of the torsion and the angle of rotation of the given wheel are measured. For this, special sensors are used. The received data is transmitted to the ECU. In this way, the operation of the electric motor is maintained in the required mode. Next, the torque is supplied to the steering mechanism and drive wheels.

Turning at low speeds is typical for parking a car. At the same time, the steering wheel rotation angle is large. The electronic control system provides torque by maximizing the work in the electric motor.

When driving at high speed, the EUR provides a minimum level of torque. To return the wheels to the center position, you will need to increase the reaction force generated when turning. To support the wheels in a certain position, the control system independently corrects their direction.

Operating principle

The ECU is a modular design built into the steering column. The module itself includes two main components:

• Electrical unit of synchronous nature;
• Controller.

It is important for VAZ 2110 owners to install such a system if they want to use wide wheels that differ from the factory ones by several sizes. And in general, if you want to feel real comfort and enjoy driving, and not turn the steering wheel with all your might, install an electric booster. He will react to even the slightest touch.

Complete with steering wheel

Although this is against the rules, now you no longer have to hold the steering rim with both hands. The car will become more than obedient and controllable when moving with one hand.

Numerous tests have shown that cars with powertrain are safer on the roads.

Technical specifications

When installing the EU on your VAZ 2110, it is important to take into account its technical characteristics. The node has certain requirements in this regard. Therefore, for the “ten” you should choose a device that corresponds to the parameters specified in the table.

Parameter

Index

Maximum torque compensation

Amount of current consumed (at Mmax 35 Nm and steering wheel rotation speed of 360 degrees in 1 sec)

Operating temperature range

from -40 to +85 degrees Celsius

Electronically controlled motor

With three passes

Made from 40X steel

Made from carbon fiber grade UPA 6/30-2

After familiarizing yourself with the specified parameters, you can choose the electric booster that suits your car. Do not forget that this is an electrical unit, so you should work with it very carefully.

Installation benefits

If you decide to install a modern electric booster on your VAZ 2110, you need to find out in advance what benefits you will receive from such manipulation. This will further convince you of the correctness of the decision.

1. Installation does not require extensive experience or knowledge. Do it yourself in a few hours of work.
2. The unit requires a small amount of electricity to operate. This will not negatively affect the condition of the battery or other components of the car.
3. EU has no negative impact on the environmental friendliness of exhaust.
4. Positively affects parametric indicators.
5. Does not require complex and regular maintenance during operation. Install it and enjoy the comfort.
6. Under low-temperature conditions, the electric booster works better than the hydraulic booster.

Some people believe that the operation of the electric booster is slightly weaker compared to the hydraulic booster. But in practice and on our roads you will not feel this. Therefore, this only drawback is more than controversial.

Stages of work execution

Due to the lack of power steering on the car, many car owners decide to install power steering on the VAZ 2107 with their own hands. Auto mechanics believe that the EUR of a Priora or Niva often fails. In some cases, the steering wheel jams. Such problems are dangerous when the machine is moving. Therefore, it is recommended to give preference to factory electric amplifiers.

In any case, you will need to adjust the gearbox speed sensor. Otherwise, when starting the VAZ and driving at low speeds, the driver will not be able to notice any changes. Thus, it will be difficult to turn the steering wheel. When accelerating at high speed, the steering wheel will yield to the car owner with little resistance.

If there is no speed sensor, you will have to install one. It must have a 6-pulse pass-through from the Niva 214. As a rule, this is included in the factory equipment. Other design changes that will need to be made include:

• transfer of another choke cable, which is included in the kit for the VAZ 2108 electric booster,
• replacing the gearbox - you will need to take this unit with a short worm shaft, and the bipod must be original,
• If the 2107 has a contact ignition system, you will need to install the MUR1100E diode yourself.

Electric amplifier delivery set

The electric amplifier is not too difficult to install, since its design and operating principle are quite simple. There is an opinion that Nivov and Priora electric amplifiers are quite unreliable and you can expect failures and jamming from them, and this, as you might guess, is not very good, especially at high speed. Therefore, we will consider purchasing a kit for installation on a classic, which, judging by the reviews, works stably.

Package Included:

In addition, it will be necessary to replace the steering gear. It is necessary to install a short-shaft, but the bipod must remain original.

Basic Installation Recommendations

Initially, an adapter plate and a cardan are made. For this, a cardan from front-wheel drive and classics is used. Next, the crosspiece is dismantled (a thread is cut on it) and the cardan is adjusted to the length. After scalding the joint, the crosspiece is assembled. New grease will need to be added to its bearings.

Then the steering wheel is inserted (you can take it from a Lada Kalina). The next step is to connect the electrical part of the EUR. The red wire to the battery is connected through the fuse. The brown one connects to any mounting pin of this mechanism. The orange wire (ignition) is connected to the blue (ignition switch) through a fuse. The tachometer cables are connected to the dashboard chip to the blue-brown wire. The gray cable from the speed sensor is connected to the wire running from its 2 to 9 pin of the ECU.

Many auto mechanics do not recommend installing such a unit on the 2107 with their own hands. Especially if we are talking about a converted mechanism. As for the price factor, this pleasure will cost car owners a tidy sum of money. If the car is driven by a woman, then installing power steering is necessary.

Some VAZ 2107 drivers decide to install power steering on their car. This pleasure will cost them 5-6 thousand rubles. more expensive than installing an electric booster system. However, the workflow will take longer due to upcoming rework.

In order to make life easier for the driver, having the ability to rotate the steering wheel “with one finger”, confidently park the car without breaking his hands at low speeds and speeds, power steering has long existed throughout the civilized world, which can be installed on a VAZ without much pain “ classics."

Technical inspection after installing the EUR on a VAZ 2107

Installing an electric booster is formally considered to be making changes to the design of the car and is an obstacle to undergoing maintenance without the appropriate certificates of conformity. It will not be possible to hide the fact that an ESD is installed on a VAZ 2107 - the device clearly manifests itself when checking the steering wheel play. This may become a basis for refusing to issue a document confirming the completion of a mandatory technical inspection.

To pass a technical inspection in accordance with the law, you need to find an official letter from the manufacturer about the compliance of this EUR model with the requirements for installation on a VAZ 2107. This letter (copy) must be taken with you when undergoing vehicle inspection.

Also, for maintenance, a document is required confirming the installation of the EUR at a VAZ-certified car service center.

If these two documents are available, the inspection station employees do not have the right to refuse to issue a certificate. In a conflict situation, you should request a written refusal indicating the reasons.

Many have probably heard that in the VAZ 2110 you can install electric power steering from Priora

. Is it difficult to install the EUR from Priora on a VAZ 2110 with your own hands

?
What is the price of the EUR from Priora
and where can I
order
? I tried to answer all these questions in this article.

There are two types of mechanisms

which make turning the steering wheel easier: power steering

(hydraulic power steering) and
EUR
(electric power steering).

Approximate price for the set:

a new set will cost you about 15,000 rubles.

You can order in Kaluga from the factory directly. In the online store “Everything for Auto”

A question without a clear answer. I can't say it's a waste of money.

.
Since the effect of installing the EUR is very good. Turning the steering wheel really becomes easy. But it cannot be said that there are no negative sides
. For example, the price of an EUR kit from Priora is about 15 thousand rubles. not many people will like it. In addition, the kit also needs to be installed, and this is a separate, not easy story with sawing, drilling and swearing all day long. After installation, not everything will be smooth with cracks, steering wheel height adjustment, etc. In general, look at how others independently install the EUR on a VAZ 2110 and you will understand everything yourself:

———————————————————————————————————— At disassembly I purchased a Viburnum steering wheel with a small bonus

I bought an EUR, here it is in a box, a control unit, markings of the EUR itself

The pads are the same as on the 10th EUR

Papers included with EUR

Then I bought a drain from Priora with a tricky mechanism

I measured the length of the drain shafts. The difference was 4 cm with an error on the larger side. The length was 25.5 cm in the most expanded form. So, taking into account the experience of the installers, that the drain shaft must be shortened by 3 cm, nothing needs to be lengthened, it seems

Then the ordered wiring arrived

This is what the blocks look like, that is, there will be no need for any twists, I removed the terminal from the block, inserted it onto the block in the harness and inserted the free terminal of the harness into the place where I removed the standard wire, it is already set to 50A

EUR connectors and harness blocks in them

As for the wiring too - you can do without a special harness - all you need to do is run two power wires from the battery with a cross-section of 4 squares, a 50 A fuse from Shnivy, the rest is all low current - to the tachometer, to the speed sensor, + 12V after the 3Z, ground, to -line and wire to the control lamp.

But since there was not enough adapter plate and it was unknown when it would arrive, I decided to cut it out myself. We take the workpiece, mark it and cut it out with a jigsaw. Thickness approximately 4mm.

We remove the casing, switches, ignition switch.

We adjust the plate in place

We put the shaft on the EUR, we put the EUR in place and we see that the shaft is too small. It fits literally 1 mm onto the rail, I had to take it off and think about it. It was not possible to distort the drain shaft, since it was hollow and had to be chemically mixed with the plate and priorol. Prioral has undergone changes in this part

Well, I had to re-drill the plate in order to drive the EUR deeper, this did not give much benefit, I installed spacers between the plate and the body. So the EUR is installed, the shaft has more or less climbed onto the rail, but not completely, the bolt cannot be inserted. I had to take a smaller bolt and clamp it to death and sculpt a limiter onto the shaft so that the cardan could not slide back in any way.

What types of steering wheel torque amplifiers are there (simply - steering wheel)?

• Power steering (power steering). Since the working medium that creates pressure is liquid, the kit includes the pump itself, hose, supply pipes, and reservoir. This amplifier uses oil under pressure. The design and installation itself are quite complex, and the amplifier itself needs to be maintained periodically. If this is done correctly, then the power steering will delight you with a smooth ride.

Statistics show that almost no one buys a new VAZ 2107 to immediately install power steering. If you have money, they take a foreign car. So the amplifier is often installed on a used car. And it’s unlikely that anyone will want to invest about half the cost (about 31-32 thousand rubles in 2014 prices) into a VAZ 2107 worth 50-60 thousand rubles. Therefore, we will tell you in more detail about the more popular option - the electromechanical amplifier (EMA). It is a little cheaper, its cost is about 20 thousand rubles.

• Electromechanical power steering (electric power steering) copes well with the load, its installation is much easier and faster. It works on the VAZ 2107 almost as efficiently as oil power steering. And most importantly, it fulfills the motorist’s eternal dream of regular maintenance, as it works on the “set it and forget it” principle. As the name suggests, the electric power steering is connected to the on-board 12 V power system (with a maximum current of 50A) and the steering.

Let's consider a domestic EUR for the VAZ 2107 produced in Makhachkala.

Electric power steering is provided for the VAZ 21214, but it is quite suitable for the entire range of classics, including the VAZ 2107. It is attached instead of a regular steering column.

The principle of operation is the creation of additional torque by the electric motor, acting synergistically and synchronously with the driver’s hands. The steering wheel gain is 5.7. This means that the turning effort, in which the driver “put in” 20 kg of his own force, now requires 3.5 kg.

A little history

Only 12 years later, in 2002, domestic engineers from Novosibirsk University began developing a Russian electric amplifier. After the completion of the project, the unit was refined and tested for several years at the AvtoVAZ plant.

New device

The engineers' task was to create a worthy analogue to foreign amplifiers, to provide the unit with the necessary advantages, durability and reliability. At the same time, unlike imported analogues, our electric amplifiers were much cheaper.

Today, these devices are produced by the Berdsk Electromechanical Plant, located in Russia and a subsidiary of AvtoVAZ.

Main advantages of the first ES

The electric amplifier would not be so in demand and popular without the obvious advantages that it brought along with its appearance. The strengths of this steering system include:

• The unit operates even when the power unit is turned off;
• The unit allows partial fuel savings, which has a positive effect on fuel consumption;
• Handling is improved in all components;
• Reliability of maneuvers at the highest level;
• Excellent safety record with regular use.

Why not hydraulic?

There are two types of power steering:

When the hydraulic power steering operates, high oil pressure is created in the system. The design of the hydraulic booster consists of supply pipes, a pump, a special reservoir and working fluid. The pump creates oil pressure, which affects the entire mechanism, making it much easier to turn the wheels.

Therefore, turning the steering wheel will be much easier. In general, the design of a hydraulic booster is very complex, installation takes a long time, and all mechanisms need to be regularly maintained. Only in this case will the hydraulic booster work perfectly.

If the car does not have a hydraulic booster installed, it is very difficult to install it. You will have to purchase additional parts, as well as make very serious changes to the steering mechanism. It is for this reason that it is not advisable to install a hydraulic booster on the “seven”.

Equipment

Without modifications, you can install the Priora’s electric power steering on the “seven”. Products manufactured by are used with the same success. Device contents:

1. Directly electric amplifier.
2. Intermediate cardan shaft.
3. Fasteners.
4. Wiring.
5. Brackets for fastening the electric power steering on the steering wheel of the “seven”.
6. Decorative plait.

When purchasing, be sure to check the equipment included with the device. If some item is not in the box, you must immediately inform the seller about it. Otherwise, problems will arise during installation.