Detailed explanation of wheel speed sensor vehicle speed display principle
2024/01/19
The working principle of 1. wheel speed sensor
The wheel speed sensor is a sensor used to detect the wheel speed and vehicle speed. It is usually composed of components such as magnetic subway tube, coil and circuit board. Its working principle is based on the principle of Hall effect and magnetoelectric induction.
When the wheel rotates, the magnet in the magnetic subway tube will continuously meet the coil, thereby generating a Hall potential difference. This potential difference is transmitted to the circuit board and processed into a corresponding voltage signal. As the wheel speed increases, these voltage signals will gradually increase, reflecting the change of vehicle speed.
Implementation of 2. Speed Display
Vehicle speed display refers to the process of converting the signal generated by the wheel speed sensor into a vehicle speed value and displaying it on the dashboard. The general use of digital and analog two ways to achieve.
The digital vehicle speed display uses the on-board computer to process the signal generated by the sensor, and displays the vehicle speed through the digital display device on the instrument panel. This method is more accurate and can display the vehicle speed to the number of digits after the decimal point. At the same time, the digital display speedometer has high anti-interference and can accurately reflect the change of vehicle speed.
The simulated vehicle speed display shows the change of the vehicle speed by rotating the pointer. The signal generated by the sensor is transmitted to the tachometer on the dashboard, and the needle in the tachometer rotates with the change of vehicle speed, thereby reflecting the change of vehicle speed. This method is relatively simple and can intuitively display the change of the vehicle speed.
Knowledge of 3. speed display
In the process of using the vehicle speed display device, it is necessary to understand some relevant concepts and knowledge, which helps to better understand the calculation process of the vehicle speed.
1. Formula for calculating vehicle speed
The calculation formula of vehicle speed is calculated based on the signal generated by the sensor, which is usually expressed by the following formula:
V = π x d x n x 60 / 10000
Here, V represents the vehicle speed, π represents the circumference (3.14159),d represents the tire diameter, and n represents the number of rotations of the wheel.
2. Installation position of wheel speed sensor
The wheel speed sensor is mounted on the wheel, usually on the brake disc of the front wheel or the bearing of the rear wheel. It can keep a certain gap with the wheel to avoid errors.
3. Error reasons of vehicle speed display
There are many reasons for the error of vehicle speed display, including sensor failure, poor circuit contact, computer software problems, etc. When using the vehicle speed display device, timely repair and maintenance are required to ensure the accuracy of the vehicle speed display.
conclusion]
The wheel speed sensor is one of the indispensable equipment in modern cars. It can accurately detect the speed of the wheels and changes in vehicle speed, and transmit this information to the vehicle control system to ensure the safety and stability of the vehicle. The vehicle speed display is an important application scenario of the wheel speed sensor. Only an excellent vehicle speed display device can provide the most accurate vehicle speed information for the vehicle owner.
2024-01-19
The unity of man and nature, Longxian all over the world, Cathay Pacific has a dream, poly rice into a mountain. Golden dog Nafu, the road to prosperity and revitalization of the exhibition hometown. In the prosperous age of wealth, sing the song of Tianlong and Tami's brilliant harmony. On January 27, 2018, in the beautiful town of Changhua in western Zhejiang, we welcomed the 2018 annual meeting and advanced commendation meeting of tianlong electronics & timi technology co., ltd. At this moment of toasting, Mr. Yang Lijiang, chairman of the company, brought a congratulatory speech to everyone. Looking back on the past and looking forward to the future, every word and sentence of Yang Zong inspires all the Tianlong and Tami people present to get together, set out again, set out together, move forward for the dream, reach the peak, and then
Advantages of USB charging case
2024-01-19
USB charging box is an innovative charging device, now more and more people's attention and love. Its advantages are self-evident.
Development Trend of Wireless Charging Solutions in Electronic Manufacturing Industry
2024-01-19
In recent years, with the rapid popularization of electronic devices and the trend of mobility, wireless charging technology has become a hot topic in the electronics manufacturing industry. In particular, the wide application of vehicle wireless charging scheme in the automotive industry provides a new solution for the development of electric vehicles. This article will discuss the development trend of wireless charging technology in the electronics manufacturing industry, and focus on the vehicle wireless charging scheme.