The speedometer in the car.
Types and Working Mechanism
The function of the car's speedometer or speed indicator in
the car's tablet is to determine the level of speed at which the car moves
It is also useful to track miles or distance travelled while driving
- What are the types of speed meters
- and what is the principle of each one's work?
- That's what we convey to you in our article.
Types of speed meter in cars
Vehicle speed meter types vary depending on the mechanism of operation
As an emerging technique, there was a traditional type that
automakers started to develop as much as any other technology in
the automotive world and reached another more sophisticated
and accurate type;
These are:
Mechanical speedometer is also called analog
Electronic Speed Meter (Electric)
- the mechanic shows the vehicle speed by indicator
- It is connected externally to the engine shaft.
How does the speedometer work in the car?
As mentioned earlier, there are two different types of car meter that
differ from each other with the working mechanism and delivery method
with the vehicle engine. In the following lines, we convey to
you each other's working principle:
Mechanical Speed Meter
Perhaps the highlight of the work of this type of
car speed meter is that it depends on the basic laws of physics.
The shaft connected to the car's engine rotates the wheel
and cable connected to the car counter, forcing that magnet inside
the speed cup to rotate in the same direction, resulting in a torque that
moves the attached speed cup in the indicator at the same speed.
The speed gauge indicator then moves at the same speed
and when the magnet is slow, which means reducing electromagnetic energy
and the speed cup therefore stops rotating because of
the indicator that holds it in place.
Electronic Speed Meter (Electric)
The way the electric car speed meter works is rather similar to
the mechanical meter, but it has a simpler design
Where the driving column includes a magnet directly connected to
it as the wheels rotate
- Magnets pass over fixed magnetic
- sensors located nearby
- creating a short electric current
The circuit in the electric speed meter calculates the number of
pulses you receive in a short period of time to turn it into speed.
How to adjust the speed meter in the car
It is necessary to calibrate and adjust the vehicle's speed meter to
ensure that the vehicle meter indicators accurately convey
the torque generated by the magnetic field
Including gear ratios in the drive cable
tire diameter, etc., because they all affect the speed of the car.
Frequently asked questionsabout
the car's speedometer
- Questions related to the speedometer in the vehicle repeated on
- search engines, some of which we quote in this article
- are attached to their answers.
Which is the most accurate between
the two types of car meter?
As mentioned earlier, there are two types of car meters, one mechanical
and the other electric; The mechanic is the oldest version
and has become almost the most widespread electronic meter due to
speed display clarity, but the two types are equally important and accurate.
- Can the gauge unit be changed from mile to kilometre per hour?
- Yes; Can be done from IDrive settings
- found in the computer information of the painting.
Does tire size affect car speed?
Yes;
It is known according to Newton's law that the force affecting the vehicle
is equal to the mass multiplied by acceleration, thus increasing the size of
the tyre will reduce the driving force of the tyre, which means
reducing its acceleration on the road.
Here we finish our article on the car speedometer during which we highlighted
the mechanism and types of work of the car's speedometer
along with how to adjust the speedometer
and we answered some frequently
asked questions about the car's speedometer;
For more information about car parts and the automotive
and transportation sector in the UAE, we advise you to
visit Dubizzle Automotive Blog and follow everything new.
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