Electric power steering for VAZ 2112 – Installation of EPS (electric power steering) in VAZ 2110

Electric power steering for VAZ 2112

The invention of electric power steering for the VAZ 2112 by Aviaagregat specialists turned out to be a pleasant event for the owners of this car.

Advantages

Its main difference from the hydraulic booster is that it is directly built into the steering column and there is no need to remake the steering mechanism - instead of the standard steering shaft, another unit is used, which has a “cut” shaft, which, in turn, is equipped with a worm gear and a torsion torque sensor and an electric motor.

It was this design feature that enabled Aviaagregat specialists to adapt the electric booster to VAZs, including front-wheel drive ones with rack and pinion steering mechanisms. The electric power steering on the VAZ 2112 develops 25 Nm on the steering shaft.

Flaws

Electric boosters are still not installed on VAZ conveyors . The main problem is that the power steering column requires the purchase of a new plastic casing (currently installers are forced to simply trim the bottom edge of a simple casing).

And this, in turn, is a huge investment in modern “plastic” production stamps, so VAZ’s management does not plan to do this.

Positive experience

Those who have ridden a VAZ-2112 hatchback, in turn, “charged” by specialists from a well-known tuning company, can say that this is a serious car. After all, a 130-horsepower engine can push the speedometer needle to 200 km/h. The specialists modified the suspension, based on their experience in racing, changed the angles of the front wheels, increased the caster (i.e., this is the longitudinal inclination angle of the “virtual” wheel kingpin) from the standard value of 1.5° to 2.5°.

The result was excellent directional stability at fairly high speeds and an incredibly heavy steering wheel. Therefore, the “Torgmashevtsy” thought for a long time and looked closely at the electric amplifier of the Aircraft Unit.

In order to try it out, we decided to install it on one of the cars. They decided that they were right and even installed amplifiers on several cars. As a result, the car did not lose any of its control reliability in various highway modes and even began to require much less physical effort from the driver at low speed when performing maneuvers.

There was no damage to the information content either: when you change the force on the steering wheel, you can understand how the wheels cling to the asphalt again. Therefore, experts decided that the electric power steering on the VAZ 2112 is an excellent way to increase its attractiveness on the car market.

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Installation process

Electric power steering

As you know, all foreign-made cars are equipped with power steering, which is initially included in the basic configuration of the car. But with the domestic auto industry, not everything is so simple. So, almost all cars, on the contrary, are not equipped with this design, and the function comes as an additional option, for some money.

EUR or power steering - which is better to choose for a VAZ-2114?

So, should you install a hydraulic booster or an electric booster? This question plagues many motorists. Of course, in all respects, the EUR is inferior to the power steering, but there is one that negates all the advantages of the “hydrika”. This indicator is the price.

So, an electric power steering with installation will cost 20,000 rubles, while a power steering kit without installation costs 25,000 rubles. So, as practice shows, most motorists choose to install electric power steering.

Do-it-yourself installation of EUR from Priora on a VAZ 2110

Not every owner of a VAZ of the tenth family knows that this car can be equipped with Electric Power Steering from Lada Priora. In this article you can get a detailed course on installing the ESD on your car of the tenth family. Today, there are two types of power steering, these are power steering (hydraulic power steering) and electric power steering (electric power steering). The electric booster has much greater advantages than its counterpart, the hydraulic booster. The first and, probably, main advantage is that the EUR requires much less attention to itself, since it does not have consumables such as oil or other liquid. which is poured into the power steering. The EUR is much simpler than the power steering. Power steering is a combination of complex mechanisms.

So, let's start the installation. For work we will need the following materials and tools:

1. Directly EUR

2. Flush shaft 3. Plate 4. Wires 5. Steering wheel and viburnum casing.

The approximate price of the issue is 15,000 rubles, by our Moscow standards this is quite a bit. But how much pleasure I received in return for the money spent. In my case, all the necessary parts were ordered from the car factory directly, everything was much cheaper. The photo shows the pads. Here we see that there is no need to do any twists, everything is fine as it is. I removed the standard terminal from the block and transferred it to the block located on the harness. Next, I installed the free terminal coming from the harness in the place where the standard wire coming from the standard block was powered. There has been some kind of exchange of wires, just the standard wire will now pass through the harnesses. The wire from the blocks has a rating of 50A.

Now we remove the steering shaft housing, all the switches, as well as the ignition switch. Then unscrew the bolt that holds the steering rack, and then remove the rack itself.

Let's compare the shaft from the tens with the Priorovsky shaft. We adjust the plate to its location.

We put the amplifier in its future place and realize that the shaft is a little small, so it fits about one millimeter on the rail. You'll have to work and adjust everything to the right size. The stock decimal shaft is hollow, so you will have to remake the plate and shaft from the Priora.

The shaft from the priory was changed in this place. We drill the plate. This is done so that the EUR can be inserted a little deeper. We install the amplifier and see what happens. The shaft climbed onto the rack, but did not do it completely, so now the rack fastening bolt cannot be inserted. We clamp everything tightly using a smaller bolt.

We install the switches in place and begin working with the wiring.

We pull two wires through the fuse block. These wires will conduct electricity directly from the battery, so there is no need to carry out any unnecessary procedures.

Now we connect the EUR wiring. We connect it and try to turn it. In my case, the EUR did not work. I started to swear, but then I remembered that the battery was disconnected. I connected the terminals, got into the car, turned it, eureka, the steering wheel turns with one finger.

Still, I am so proud of myself. Everything is ready, all that remains is to put everything in place. We collect all the switches, put in place the casing that hides the steering shaft and have a good ride. As I already said, the price is about 15,000 rubles, but now I don’t regret that I made this device on my machine. Good luck with all the improvements, goodbye.

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Story

Back in 2002, engineers from the Novosibirsk Technical University developed this electric power steering, which has become so popular. After all stages of creating the device were completed, the device was tested at the VAZ plant for several years.

Russian manufacturers have done everything to ensure reliable and high-quality advantages of the unit over similar foreign-made devices. The amplifier uses alternating current, which ensures reliable and durable operation.

Priora electric power steering diagram

But the main thing for our drivers was the acceptable cost of this unit, much lower than that of Western components. In addition, the electric booster can become a reliable protector against theft. Since electric amplifiers were invented for domestic brands, they are produced accordingly in Russia, at the Berdsk Electromechanical Plant, which became a subsidiary of VAZ.

The electric power steering itself was first invented and implemented back in 1990 in Japan at the factories of the Toyota concern. The first advantages of the device that it showed were characterized by the following indicators:

• The unit operates even when the engine is turned off;
• When the component operates, significant fuel savings may be observed over a period of time;
• All controllability indicators are significantly improved;
• Control reliability reaches great heights;
• Creates good safety conditions for constant driving.

Electric booster, Hydraulic booster, How to remove, Backlash

These models are built using many modern inventions in the automotive industry, and the car body itself is made in a modern manner. Therefore, they are often tuned for sports cars using a variety of lights, both inside and outside, directly on the body. The right colors and well-placed LED strips can really transform a car. The steering wheels are also backlit.

The steering wheel is made of transparent material, usually a silicone layer is applied to a metal frame, into which LEDs are mounted, arranged in such a way that when illuminated, it would seem that the steering wheel is glowing like one single lamp. Of course, there are other worthy solutions, so it's all a matter of taste.

Table of contents

Electric power steering Power steering How to remove Backlash Crunch when turning

Electric booster

Advantages

Its main difference from the hydraulic booster is that it is directly built into the steering column and there is no need to remake the steering mechanism - instead of the standard steering shaft, another unit is used, which has a “cut” shaft, which, in turn, is equipped with a worm gear and a torsion torque sensor and an electric motor.

It was this design feature that enabled Aviaagregat specialists to adapt the electric booster to VAZs, including front-wheel drive ones with rack and pinion steering mechanisms. The electric power steering on the VAZ 2112 develops 25 Nm on the steering shaft.

Flaws

Electric boosters are still not installed on VAZ conveyors. The main problem is that the power steering column requires the purchase of a new plastic casing (currently installers are forced to simply trim the bottom edge of a simple casing).

And this, in turn, is a huge investment in modern “plastic” production stamps, so VAZ’s management does not plan to do this.

Positive experience

Those who have ridden a VAZ-2112 hatchback, in turn, “charged” by specialists from a well-known tuning company, can say that this is a serious car. After all, a 130-horsepower engine can push the speedometer needle to 200 km/h. The specialists modified the suspension, based on their experience in racing, changed the angles of the front wheels, increased the caster (i.e., this is the longitudinal inclination angle of the “virtual” wheel kingpin) from the standard value of 1.5° to 2.5°.

The result was excellent directional stability at fairly high speeds and an incredibly heavy steering wheel. Therefore, the “Torgmashevtsy” thought for a long time and looked closely at the electric amplifier of the Aircraft Unit.

In order to try it out, we decided to install it on one of the cars. They decided that they were right and even installed amplifiers on several cars. As a result, the car did not lose any of its control reliability in various highway modes and even began to require much less physical effort from the driver at low speed when performing maneuvers.

Power steering

The need for power steering

VAZ 2112 cars coming off the factory assembly line do not contain power steering. This fact may indicate that the machine simply does not need such a device. However, you can find power steering on sale and install it yourself. Before buying anything, spending time and effort, it would be wise to weigh all the facts. Arguments in favor of hydraulic booster

Aspects that indicate the need to install this device are as follows:

Read also:  How to repair an engine on a VAZ-2111 8 valve injector

Facilitation of parking; Reduced effort on long turns; Increased ease of control on the road.

As you can see from the list, there are few arguments. But for some drivers they are very important.

Ease of parking

The main purpose of the VAZ 2112 power steering is to reduce the effort when turning the wheels. In winter, when the surface is slippery, turning the wheel of a stationary car is quite simple. But if you imagine that there is asphalt under the car with small stones sticking out and digging into the tire, then you will have to make a lot of effort to perform the desired maneuver.

Repair costs

Over time, any mechanism wears out and needs repair. It is clear that an increase in the number of mechanisms inevitably leads to increased costs for their maintenance and repair.

When installing the amplifier, the following malfunctions may occur:

Loss of system tightness; Broken or loose pump belt; Malfunction of the distributor; Destruction of rubber parts;

System clogged. Wear and failure of the working cylinder.

Depending on the malfunction, there is a need for certain purchases and associated costs. Not only monetary expenses, but also time will be needed in such situations.

How to remove

THE ORDER OF REMOVAL OF THE STEERING WHEEL is performed in the following sequence

1. It is necessary to disconnect the “–” terminal on the battery. This is due to the fact that there are electrical connections in the steering wheel (horn switch). Turning off the power will prevent shorts and unwanted electrical connections.

2. Next, twist the steering wheel to the position where the car is moving in a straight line. In this case, the steering wheel must be symmetrical relative to the conditional vertical line drawn through the center through it.

3. Unscrew the 7 screws securing the steering column casings and remove the lower steering column casing downwards. After unlocking the steering column adjustment lever, lower the column down and move it up to remove the upper steering column casing.

4. Use a screwdriver to pry up the decorative trim, unscrew the 2 screws holding the horn button and remove the button.

5. Using a socket, unscrew the steering wheel mounting nut so that it can move freely along the shaft, but do not screw it in completely.

Good to know

The steering wheel is rigidly mounted on the shaft splines. This fit is ensured by the mating qualities and dimensions of the shaft and steering wheel. Therefore, when removing it, finally unscrew the wheel fastening nut only after its hub comes off the shaft splines. Otherwise, the steering wheel, abruptly jumping off the splines, may cause injury to you or other damage to the car.

6. Before finally removing the steering wheel, remember or better yet mark the position of the wheel relative to the shaft and the position of the turn signal switch relative to the plastic ring. Then, with sharp blows towards yourself, remove the steering wheel from the splines of the steering shaft. Completely unscrew the steering wheel mounting nut and then remove the steering wheel.

Backlash

First of all, you need to check the steering wheel play. For those who do not know, I will explain what steering play is. These words mean the distance that the steering wheel covers “freely” before the wheels begin to turn. The task is to measure the steering wheel play using a previously prepared caliper. In order to do this, you need to fix it suspended in the lower or upper position of the steering wheel. After this, you should make a control mark and compare the starting point of the caliper reference mechanism with it. The steering wheel should be turned to the opposite play point. Then you need to move the measuring arm apart, placing it on the previously marked reference mark.

Now regarding the backlash tolerances. Steering play is considered to be optimally acceptable if the value does not exceed 35 mm; if this value is greater, steering adjustment is necessary; if it is not done on time, the car will soon need steering repair.

Crunch when turning

Surely many car owners have encountered such a problem as a crunching sound in the area of ​​the front wheels when turning the steering wheel. So, the main cause of this malfunction is the failure of the drives, or rather the CV joints. It happens that even after buying a new car and driving it only a few thousand kilometers, the CV joints fail.

But most often this happens not with factory parts, but with those that you install during operation, after some time. From my own experience I can say that I changed the CV joints on my car several times over a short period of mileage, such as 20,000 kilometers. Although I drive carefully, the quality of spare parts is such that no precautions help.

But quite often car owners themselves are to blame for this strange crunching sound. Sharp starting and braking are not recommended; you cannot drive away sharply with the steering wheel turned, as reckless drivers very often like to do, especially at reverse speed, demonstrating a well-known driving technique - a police turn. If you don’t do this, your car will most likely spend quite a long time on CV joints alone.

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Differences from power steering

You need to understand that power steering is a power steering and these two devices are constantly compared, figuring out which one is better. In general terms, we can say that these two components may have common characteristics, but the electric amplifier contains an electronic unit.

It is this difference that makes it more functional, and its performance is characterized by the following indicators:

• The sensors of the electronic unit constantly monitor the speed of movement, they read its trajectory and monitor the serviceability of the working components;
• After the data is collected, it is transferred to a special electronic control unit where it is processed;
• The artificial intelligence of the control system changes the parameters of the master cylinder automatically;
• The oil pressure level is adjusted only by the position of the valve; it can be either open or closed;
• The higher the speed the car begins to pick up, the more intensively and actively the valve opens;
• In the process of increasing speed, the severity of steering wheel control also increases in parallel, and this in turn increases the degree of safety and stability when driving the VAZ 2110;
• In addition, the operation of the electric booster is not affected by the presence of fuel, it does not affect its consumption.

If the effectiveness of the braking system decreases sharply, then there is a high probability that the problem is related to the master cylinder. This article will help you replace it:

Specifications

Like any other module in a car, the electric amplifier has its own indicators that must be taken into account. To make it clear what this unit is, its technical characteristics should be given:

• The maximum torque compensation is 35 Nm;
• Current consumption at average Mmax = 35 Nm and steering wheel rotation speed of 360 degrees per second is 50A;
• Operating temperatures range from - 40 to + 85 degrees Celsius;
• The total mass of the unit is 9.5 kilograms;
• Electronically controlled motor - reluctance induction;
• The rotation is reversed;
• The presence of three phases;
• A worm gearbox with three starts is installed;
• The worm shaft is made of 40x steel;
• The worm wheel is made of carbon fiber UPA 6/30-2.

Steering column with electric power steering

These are all the characteristics of a component that you need to know in order to interact with it. These indicators are especially relevant because the amplifier is an electrical unit and you need to be careful with it.

What is included in the scope of delivery of the electric amplifier?

• electric booster;
• adapter plate;
• intermediate shaft;
• steering column switches;
• wires;
• egnition lock;
• steering wheel from Priora or Kalina;
• decorative casing;
• speed sensor.

How to install

To install the EUR on a VAZ 2107, in addition to the parts from the kit, you will need a standard set of tools consisting of keys and screwdrivers. The assembly procedure is carried out in the following sequence:

1. We de-energize the vehicle's on-board network, for which we remove the negative terminal from the battery.
2. Remove the decorative cover of the steering column by unscrewing the corresponding fastening screws.
3. We dismantle the old steering wheel and cardan.
4. According to the instructions, we mount the new mechanism through a special plate.
5. We get down under the car, unscrew the speedometer cable from the gearbox and install a speed sensor onto which we screw the cable.
6. We connect the wiring according to the diagram.
7. We install the protective cover.
8. We connect the terminal to the battery and check the functionality of the electric amplifier. If installed correctly, there should be no problems.

Video: installation of EUR using the example of VAZ 21214

Principle of operation

The work of EMURU, that is, the electromechanical power steering, is aimed at reducing the driver’s control efforts. The device is also designed to actively return the steered wheels and steering wheel to their original position after a maneuver. Fewer turns of the steering wheel will return the wheels to their original position.

Thanks to the device, the car returns to straight-line motion faster, which ensures driving safety.

The unit itself is a modular design that is built into the steering column.

The module consists of two main components:

• The power unit is a synchronous electric device;
• Control type controller.

The installation of an electric booster is especially important if the owner of a VAZ 2110 installs wider tires on large-diameter wheels compared to standard factory ones. Such a problem as an “unruly” steering wheel is eliminated in the case of electric power assistance; the steering wheel obeys the driver even with a light touch.

General diagram of electric power steering

If previously the driver had to constantly hold the steering wheel with both hands and put a lot of effort into turning it, now everything can be done with one finger.

Thanks to these indicators, the VAZ 2110 is considered one of the safest cars on domestic roads.

One of the main components of the brake system is the caliper. Details of self-repair of this part are outlined here:

Passing technical inspection and certificates

Before installing the ESD on your G7, you should think about passing a technical inspection. The fact is that installing such a device means making changes to the design of the vehicle, which will result in difficulties when passing maintenance in the absence of appropriate certificates. To avoid any problems, it is necessary to install the product in a certified VAZ car service center. In addition, you need to obtain the appropriate documents: a certificate from the manufacturer and the service where the installation was carried out. If you have all the necessary papers, then you can pass the technical inspection without any nuances. If conflict situations arise, the inspection station staff must request a written refusal indicating the reasons.

Despite the apparent complexity of such a device as electric power steering, its installation and connection will not take much effort and time. You need to prepare a mechanism kit with the necessary tools, and then follow the step-by-step instructions according to which you can install and connect the device.

Replacing the EUR

So, you need to replace the electric booster on the Priora or simply check the condition of its contacts. In any case, repair involves complete removal of the unit. Prepare the necessary tools:

It’s quite easy to remove the amplifier itself with your own hands, but in order to get to its mounts and the control unit, you will need to remove many parts of the dashboard: the steering wheel along with the airbag, the casing and the ignition switch. Once these components are removed, repairs to the amplifier can begin.

conclusions

The process of installing electric power steering on a VAZ-2114 is quite long and not just a process that will require a lot of time and effort. Of course, to many motorists, it will seem quite complicated and almost impossible. Therefore, if a car enthusiast is not confident in his abilities, he needs to contact a car service center, where everything will be done quickly enough.

The invention of electric power steering for the VAZ 2112 by Aviaagregat specialists turned out to be a pleasant event for the owners of this car.

Fit

If the installation work of the electric amplifier is carried out by an experienced technician, who may go somewhat beyond the scope of the proposed instructions, then it should be said about how the electric amplifier is adjusted to the VAZ 2110.

After the main actions from the above list have been carried out, the following adjustment can be made:

• Align the steering wheel;
• Eliminate all cracks and gaps between parts;
• Install the LED diagnostic sensor for the electric amplifier;
• Slightly shorten the power cable;
• If necessary, replace damaged parts and damaged parts of the casing.

After this, you should once again carefully inspect the steering system while sitting in the cabin. Eliminate the last defects and rub the panel and steering wheel with polish. Only after this can you begin further operation of the machine. It is the maintenance of cleanliness and order in the car interior that leads to the driver’s concentration behind the wheel.

Price issue

Wanting to install an EU on a VAZ 2110, many car owners are interested in how much the installation will cost them.

We cannot say the exact prices of such services at car services, since each service station has its own pricing policy. If you plan to do the installation yourself, then we suggest that you familiarize yourself with the approximate price list for everything that you will need during the work process.

Obviously, the presence of an electric booster gives many advantages to owners of the VAZ 2110, like any other car model. But don’t risk installing the unit yourself if you don’t have even the slightest experience and understanding of working with wiring. In this case, it is better to overpay, but entrust the installation to specialists.

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.