Why is the speed of the dashboard different from the real speed?

Car navigation to update the general to go to the 4S shop, is indeed more troublesome than the mobile phone, many careful car owners also found that when driving the car navigation and mobile phone navigation, the speed displayed by the two is not the same, and even the instrument is not the same, which is not allowed?

In fact, experienced veteran drivers know thatThe gauge is not accurate, it is just a series of processes through the car equipmentAccording to the formula calculation, so the speed displayed by the instrument is not the actual speed, it may exceed, and sometimes it will be slightly lower, which requires the owners to adjust according to the actual situation.

When the car is driving at high speed, the actual speed is higher than the value displayed on the instrumentMany car owners feel that their driving speed is clearly within the speed limit, but in fact they are still speeding, which is why they still receive tickets.

Why is there an error in the data displayed on the meter? In fact, it is an adjustment made by the manufacturer for the sake of drivers' driving safety, so that drivers can make the speed slower when driving, and safety first.

Clear speed limits for driving speed on highwaysAt this time, the actual driving speed often exceeds the value displayed on the dashboard, and the drivers cannot judge their driving speed according to the value displayed on the instrument. Some drivers will reduce their speed in advance, in order to make the monitoring equipment not determine their driving speed overspeeding, but sometimes it is clear that it is already below the limit, but they will still receive a ticket, they even insist that there is a problem with the monitor, this is because they see the speed limit sign before starting to stop, and only reduce the driving speed to the edge of the speed limit standard, but in fact, there is an error with the actual driving speed, which causes the driver to mistakenly think that his speed is not exceeded. Some old drivers will start to slow down in advance and control the driving speed a little farther away from the specified value, so that it will be safer and will not have to collect a ticket.

In addition, you should also pay attention to slowing down in advance, if you see the monitoring before slowing down, it is likely that the speed will still exceed when you can test through monitoring.

It is inevitable that there will be a certain error in the production process of the dashboard, which is a problem that cannot be solved.

Because the dashboard actually has errors, this is a problem that cannot be solved.

Because the dashboard will inevitably have a certain error in the production process.

Because the speed displayed on the dashboard of the car is still delayed compared to the real speed.

The gauge is inaccurate, it is only calculated by the automotive equipment according to the formula for a series of processes.

A series of processes are calculated according to a formula by means of automotive equipment.

It is inevitable that there will be a certain error in the production process of the dashboard, but it is not much worse.

Because the dashboard is relatively just a machine, it is not that accurate.

The instrument cluster shows that the speed is higher than the actual speed.

The meter shows that it is inaccurate, more or less different from reality.

The speed of the dashboard is not the same as the real speed, but it is not much different.

The car instrument does not display the speed and can perform related operations.

The dashboard of a car can reflect the working conditions of various systems of the car, usually with fuel indicators, door indicators, and front and rear fog lights.

indicators, etc. Cars are equipped with speedodometer, tachometer, oil pressure gauge, fuel gauge, etc., of which the speedometer is composed of speedometer and odometer, and the traditional speedometer is mechanical and is widely used in various models.

The car instrument does not display the speed, adjust the right side of the multi-function steering wheel to remove the return button or the button on the right side of the combination search switch is simple and leaky, some models are long press the zero button of the dashboard, you can switch the function of the car back, and the display screen will change after long pressing.

Car dashboard.

If no entry is displayed, it means that there is nothing on this page, which is normal, and it can be called back. Some models press and hold the top button of the wiper until the screen shows the status of the car, and then call up the data you want.

The reasons for the failure of the dashboard not showing speed are:

1. The speed sensor of the vehicle is faulty, and the line is short-circuited or damaged;

2. The dashboard of the vehicle is abnormal, the wiring is damaged or the plug is loose. The dashboard has no speed, so it should be overhauled in time to avoid the problem of overspeeding.

It is the speed sensor that is broken, and the car needs to be repaired and even replaced at a certain mileage interval. In addition, the car needs to be overhauled or even eliminated after a certain mileage, and there is no mileage display, which is difficult to judge and can only be dealt with in advance.

The speedometer uses the measurement signal of the vehicle speed sensor to calculate and display the speed of the car. When calculating vehicle speed, one way is to count the number of pulses output by the sensor at a fixed time, and the other is to measure the time taken for a fixed pulse period. The method of calculating the number of pulses is when the microprocessor detects that the number of pulses in the signal from the sensor has increased, and begins to count the pulses representing the vehicle speed, and then compares the data of the counter with the data in the memory, and if the difference reaches one kilometer per hour or more, the data of the counter is output to the display circuit to refresh the display value, and the whole process is repeated repeatedly.

Hope, thank you!!

The car's gauge doesn't show speed, which means it's speed, and there is a problem with the sensor.

You need to go to the four S shop to replace the speed sail spine sensor, or it is possible that the line is broken and the guide car is changed, and the replacement of the line of the data collector can solve the problem.

In short, the car involves the whole problem of Anlu, do not modify it privately.

If there is a dial of the instrument does not show the speed, the ant posture and other normal displays, it means that the sensor is a problem, the speed of the sensor is not uploaded, so it will not show the speed, if the other is not bright, it means that it is a problem with the line, the instrument is blocked and the disk is powered off, well, find the connector, replug it, it should be solved.

Hello Adjust the return button on the right side of the multi-function steering wheel or the button on the right combination switch, some models are Changmin is pressing the zero button of the dashboard, you can switch the function of the car back, and the display screen will change after pressing and holding it forward.

The speed of the dashboard is not accurate, because the gauge speed measures the speed of the tire, and the tire will produce errors after wear.

The dashboard technology is not very accurate, it is generally an approximate number, and if you measure the speed, you will get the average speed, and the final result of the two is not the same.

I think it's inaccurate, because the cautious statement is obtained through the tire speed sensor, and this data will be affected by the degree of tire wear and the size of the tire pressure.

Actually, I've noticed the speed of the instrument a few times. When traveling at 120 mph, navigation sometimes shows 115 mph and 114 mph. However, according to the diagnostic computer, the speed of the computer is about 115 mph, so the speed displayed on the instrument panel is about 5 mph different from the actual speed.

In fact, the speed of navigation is not necessarily very accurate, because if the positioning is not very accurate, the positioning speed is sometimes the same as the speed displayed on the dashboard, and sometimes it is about the same.

In fact, when the dashboard shows the speed of 125, it is generally not possible to shoot the speed test, because the speed test** also has an error of 5, so running at a speed of 125 h, it will not be photographed on the road with a speed limit of 120, but when it reaches the speed limit of 126 per hour, it will generally be photographed by the speed limit.

I remember one time I just ran less than 130 h, about 126-128 h, and then I received a violation message. In the past, when dealing with violations, I showed speeding, more than 125 hours, and then there was a violation warning, that is, if I didn't exceed the speed limit by 10%, there would be no penalty or fine. Therefore, there is a certain error in speed measurement and photography, and the speed of the dashboard will shrink slightly.

Therefore, there is a range of 10%.

Although there is such a difference in the speedometer, I basically drive on the road with a speed limit of 120, and the speedometer generally runs between 120 and 125 per hour. If you hurry, you may be photographed by the excitation chain, and the fuel consumption will be much higher.

Generally, when using car navigation, the navigation speed is about 5% different from the dashboard speed, but when using mobile navigation, the difference between the speed and the dashboard is about 2%, so the navigation speed is not necessarily the accurate speed.

Summary. In general, the navigation speed is slightly more accurate than the dashboard speed and closer to the real speed, but there are some errors. This is mainly due to the use of spaced movement velocimetry for navigation.

If the vehicle accelerates or brakes sharply within a certain mileage, or even the vehicle turns quickly, the speed measurement will be slightly affected, but the deviation will not be too large, generally speaking, when the GPS navigation speed shows that the speed is 120kmh, the actual speed is about 118-120, and the error is very small.

Does the speed of the car dashboard match the actual situation?

Dear, the speed of the car dashboard does not match the reality, and the speed displayed on the car dashboard is not the real speed of the car. In most cases, the number displayed is greater than or equal to the actual speed. As for the difference between the two, it will vary depending on the car company and model.

There is a certain discrepancy between the speed displayed on the dashboard and GPS navigation and the actual driving speed.

In general, the navigation speed is slightly more accurate than the dashboard speed and closer to the real speed, but there are some errors. This is mainly due to the use of spaced movement velocimetry for navigation. If the vehicle accelerates or brakes sharply within a certain mileage, or even the vehicle turns quickly, the speed measurement will be slightly affected, but the deviation will not be too large, generally speaking, when the GPS navigation speed shows that the speed is 120kmh, the actual speed is about 118-120, and the error is very small.

Hello, glad to have your question, the answer to the question is as follows: not the same. The speed displayed on the dashboard of the car is a simulated counting method, which means that the speed displayed on the dashboard is not small at all compared with the speed at which the car runs.

For example, when you accelerate from 80 km h to 120 km h, and slow down to 120 km h, there is a big difference between the two. When you drive at 120 km h on a high speed, your actual speed will be slightly slower than the speed shown on the speedometer, in which case you may not be speeding even if it is displayed on the dashboard, but it may not be speeding under the speed measurement device of the traffic police. Speeding usually occurs in monitored speed sections, and some drivers will choose to drive over the speed limit in unmonitored sections, and will slow down sharply when entering the test area.

In this way, the vehicle quickly drops from a high-speed state to a speed of 120 km h, but the real speed of the car is greater than 120 at this time, but the actual speed is still above 120 km h.