How to check a children's electric car (troubleshoot)?

In electric cars, the favorite toys of modern boys, malfunctions of various kinds often occur. The cause of the breakdown may be operational errors, manufacturing defects, or natural wear and tear. In any case, you need to know how to check a children's electric car when malfunctions occur, and fix the problem so that it does not cause a nervous breakdown in children and parents.

The principle of operation of children's transport

Children's electric transport has a simple design that every parent with a superficial knowledge of electronics and mechanics can easily understand. The machine is driven by electric motors. In cheap models, one motor is installed on the drive wheel. It is worth immediately installing another pair of gearbox and battery, improving the technical characteristics of the electric vehicle. The electronic unit controls gear shifting, reverse gear, and gas pedal. Models designed for little ones have receivers that pick up the signal from the control panel.

LED electric vehicle headlights

So, I made a head light, and because the standard two 50 mW bulbs are very difficult to even describe as dimensions. I took photographs for a long time from different sides trying to show how it shines. In the end, this is what happened: the lights in the hall were turned off, the flash was turned off.

It shines decently, in my opinion it is very bright, it will be necessary to turn it down a little. In general, the consumption is 4 watts per headlight or a total of 8 watts for both. Inside there are 4 ultra-bright LEDs of 3 watts each. But they get very hot.

These are radiators with hot-melt adhesive on the surface, so as not to have to worry about the LED mounting bolts, torn from a dead switch. These are the diodes:

They are pure 3 watts, they shine white with blue. There are also the same ones for 10 watts. They shine with a yellowish tint, but they get terribly hot and their brightness is simply crazy.

Added super-bright standard ones on the sides, yellow in front, white on top as dimensions, yellow for turning.

Everything is filled with superglue so that it doesn’t fall off and water doesn’t get in.

Then I started working on the brake lights. I thought I’d quickly plug them in and think about the front end, but it turned out to be quite a long time. Gone all evening. A total of 76 pieces of red super-bright LEDs were used. At first I thought “why are there so many of them?” then I turned it on and realized “just right.” Separately, small diodes burn well, but in comparison with the head ones, they are just candles...

Brake lights for electric vehicles without courtesy lamps:

Further plans include making a servo from the steering gear and proportional steering control. Also a pseudo differential for the running engines, since when turning they howl strongly from an uneven load, along the way everything will be immediately converted to 24 V. Since the running motors are controlled by PWM, there will be no problem limiting the voltage and current on them, at the same time increasing the vehicle's top speed. Plus there is also a bag with super-bright red diodes for installation on the back; at the moment there is not a single lamp on the back. There is also a full-fledged MP3 player with a class T amplifier, but there are no speakers for it; they never arrived from China. I think 2-3 cotton wool per channel will be enough. In general, there is enough work, a lot of plans.

Common problems

First, you should familiarize yourself with common problems in order to respond to a malfunction in a timely manner and decide on the course of action. You will have to engage in diagnostics and repairs if:

The engine will not start.
The battery is not charging.
The electric car does not respond to signals from the remote control.
The machine does not move when the engine is running.
There is no sound.

These are the most common problems that can arise in children's transport.

Where can I get spare parts?

The answer will be obvious, but you never know, just in case, let’s focus our attention once again. All spare parts for a children's electric car should be purchased from certified dealerships of a particular brand. The low price of a second-hand control unit is unlikely to serve for a long period. The exception is if you are a skilled and detail-oriented person.

What causes trouble most often:

Control block. We recommend buying it assembled and repairing it only in cases of full competence.
Chassis. There is a lot of room for creativity here, since most often, children's electric cars are poorly equipped properly.
Electronics problems. A diagram that was not thrown away during unpacking or downloaded on the Internet will help (qualification is required).

Poor plastic gears are another Achilles heel. As a rule, broken teeth begin to jam the wheels and make an unpleasant, characteristic sound. There are no interpretations for this on the diagrams for children's electric vehicles. We recommend taking a new one assembled.

The engine won't start

The electric motor installed in a children's car may fail. But don’t immediately think about a major breakdown. To get started, you need to do the following:

Check if the charger is disconnected from the machine. The electric car does not turn on when it is charging.
Make sure the battery is charged. If there is no charge, you need to connect the charger for 7-9 hours. You can check the performance of the motor and do a test run a couple of hours after charging starts.
Check the condition of the terminals, connectors, wires. There may be no connection at the start button, battery, or control unit.
See if the fuse has blown.

If these measures do not provide a positive result, the electric car will not start, and the engine will have to be repaired or replaced. Often the cause of premature engine failure is the breakdown of a gear made of a polymer that does not have much strength. You can disassemble the device, install a new, durable part, and restore the functionality of the motor.

Electric vehicle suspension

I got to the suspension, this is what happened:

The attachment point to the body “breaks”, it will need to be strengthened, but overall it turned out great. The axle is currently secured with nylon ties; later I will buy some car clamps and tighten them with them. There will be a lot of shock absorbers for 10 kg, I will select according to the weight of the child, there are 5 kg pairs in stock, if there are not enough, then in the store for 7 kg.

The engines themselves, according to the sticker that is glued to them, are 30 watts 9000 rpm. On Chinese sites they write that these same engines can withstand 24 V at already 18,000 rpm. It's hard to believe. But two such engines confidently drag the car and the driver at a 30-45 degree slope with almost no loss of speed. And the LEDs are powered by a reduced voltage, they give out 2 watts each instead of the declared 3, so they hardly heat up and there are enough of these radiators, each pair has a dc\dc converter unit, you can always adjust it.

3 more “handles” for the steering rods and I found another interesting thing, a thin-walled aluminum square, used for making mosquito nets for plastic windows. The price is 40 rubles per meter, I took a 3-meter stick for all sorts of reinforcements and supports. It will also be used for body frames. In general, it’s a convenient and cheap thing, I think I’ll have to buy more. I'm looking for a small-sized ball joint for the front and a way to drill a straight hole into the end of the rod on which the wheel is held, in order to deeply seat the shock absorber rod there - they are very long and thin. This is what the rear suspension looks like from below:

No charging

The movement of the electric vehicle is provided by the engine. But it needs power, which is supplied by the battery. battery. To charge this unit, the machine is equipped with a special device. The battery has a certain resource. But it may fail ahead of schedule if:

operating rules are violated;
the body is damaged;
Third party devices are used for charging.

The condition of the battery must be monitored closely to reduce the risk of problems. The main condition is timely charging. It should be carried out after each trip or when the speed decreases or when moving in jerks. Do not allow the device to completely discharge. In this case, its energy intensity will significantly decrease. When the machine is in winter storage, the battery is recharged every 6 weeks.

Lack of charging does not always indicate battery failure. The problem may be caused by a faulty charger or connector. Their status needs to be checked in the service class=”aligncenter” width=”1280″ height=”720″[/img]

Disadvantages of the Kreiss 6V motorcycle

The trunk opens very easily, and a child can easily get into it. There is a wire from the flasher there, and a young driver can damage it. Therefore, it is better to hide the wires or remove them altogether if your baby is too active.
When ordering online, the toy arrives unassembled. Not everyone can quickly and easily assemble it and connect all the wires correctly, according to the instructions.
The battery discharges quickly with active use. The driving time, even with a well-charged battery, continues to become shorter and shorter.
Music that is too loud can be annoying for adults, but the sound can be turned off.
Short warranty period, only 3 months. So it is recommended to actively use the motorcycle immediately after purchase in order to promptly identify all defects and defects in production.

The car does not move when the engine is running

The engine is running properly, but the electric car is standing still. Perhaps the gear is not engaged, the car did not receive the command to move. If it is activated, the speed and mode are selected, but there is no movement, you need to sequentially check the entire electrical system, wire connections on the control unit, gear shift lever, and gearbox. If there is damage to the wires, they need to be replaced. Perhaps the terminals have come loose and the network has become disconnected. If the examination does not reveal any violations, you will have to proceed with a thorough diagnosis. The reason for the lack of movement may be a breakdown:

Control unit.
Motor.
Buttons
Gearbox.
Gas pedals.

If any of these elements or components fail, they will need to be replaced.

Reviews of the Kreiss “Police” 6V motorcycle

Reviews about the Kreiss police motorcycle are very different: both positive and negative. The only thing that the general opinion of adults agrees on is the child’s delight at the sight of such a toy.

Although the instructions say from 3 years old, 1.5- and 2-year-old children can easily handle the controls. The buttons on the panel are quite understandable for a child. Kids will be happy to switch the FORWARD/BACK buttons. They are also delighted with the lighting effects, music and police signal, and constantly switch and play with them.

Moms are also happy that the Kreiss “Police” 6V motorcycle is quite lightweight and can be lifted and moved if necessary. Three wheels give the vehicle good stability and prevent the child from falling or dropping it.

Children are especially impressed by riding in the dark, when the glow of headlights and the light of a police flasher are clearly visible. Controlling the steering wheel is also quite simple; the child can easily turn it left and right. Reverse speed is very interesting; you can taxi out from anywhere without getting up or turning the motorcycle around. And even if the motorcycle is not in driving mode or the battery is low, children push off with their feet and ride it like a gurney.

No response to remote control signals

If the electric vehicle does not respond to remote control signals, you need to check the batteries. They may be faulty. They should be replaced. If there is no reaction, you need to check the connection of the machine to the remote control. Modern models are connected via Bluetooth. Some electric vehicles have a remote-to-pedal control switch. You need to check its position. If only the turn signal is not received, back and forth is moving normally, you should look at the terminals on the steering gearbox.

The actions taken may not lead to a positive result. In this case, you will have to contact the service center. Professional diagnostics of the remote control, control unit, and gearbox are required.

Functions of the Police motorcycle

Goes back and forth.

On the front control panel of the Kreiss “Police” 6V motorcycle there are buttons for switching movement. First you need to make a choice: “forward/backward”, and then press your foot on the pedal, which is located at the bottom on the right side. Turning is done using the steering wheel.

There are 2 red buttons on the front panel that produce sound. When you press the right one, a police signal sounds. When you click on the left one - one of three funny songs in English. The sound is too loud for the house, but normal for the street.

When the small motorcycle moves, the front blue headlight glows. The red and orange side lights are just for looks. Also, when driving, the flashing light on the trunk glows red and blue.

Measures to prevent malfunctions

You can reduce the risk of malfunctions in a children's electric car if you take certain measures. It should be noted that manufacturing defects in models from well-known manufacturers are extremely rare. The causes of most breakdowns are improper operation and natural wear and tear.

First of all, you need to choose the right electric car. The main guidelines are the age of the future driver and his weight. It is important to exclude overload, which will force the machine to work at maximum performance, which will lead to a number of malfunctions.

Experts give several recommendations to reduce the risk of breakdowns:

Charge the battery in a timely manner, this will extend its service life.
Keep it in a dry place for winter storage to prevent corrosion.
When traveling, do not use difficult routes with puddles or tall wet grass to prevent moisture from getting to the electrical components.
Turn off the engine immediately after water gets in; you can turn it on only after thoroughly drying all network elements.
Avoid mechanical impacts and collisions that could damage the electric vehicle.

Parents need to give the nth driver detailed instructions before he gets behind the wheel. You should explain to your child the rules for handling a vehicle and teach him how to take care of his first car.

To avoid breakdowns

If you don’t want to upset your child with an electric car malfunction, follow a few simple rules:

buy only products from trusted brands, from trusted sellers who provide a quality guarantee;
select an electric car according to the age, weight of the child and in accordance with the expected driving conditions;
follow the operating instructions and manufacturer's recommendations;
monitor battery charging, use original batteries and chargers;
Do not repair breakdowns yourself; if necessary, contact a specialized service.

And then a wonderful favorite toy will delight your child for a long time, and with him – you!
It is difficult to meet a child between the ages of 2 and 10 who would refuse to drive an electric car. This toy allows you to feel like a real driver, acquire your first driving skills on the road and just have a lot of fun. But what a disappointment it can be that one fine day your favorite gift does not start. Why does this happen and can parents cope with this problem on their own, without the help of specialists? This will be discussed in this article.