From the perspective of product design and performance test, it is found that under specific vibration endurance test conditions (vibration at 78.5Hz), the tin-plated material of Pin pins is oxidized and worn; the connection between the sensor and the ECU is interrupted or the contact resistance is high, and the continuous When the time is more than 32ms, the occasional unassisted failure will appear. When the connection is restored again, the fault will be eliminated, resulting in occasional unassisted failure.
Adding a plating layer to the terminal can not only reduce the corrosion on the surface of the terminal material, but also improve the state of insertion force. However, in order to maximize the function and economy, the plating layer mainly refers to the following conditions of use: it can withstand the actual temperature conditions of the terminal; environmental protection , non-corrosive; chemically stable; guaranteed terminal contact; reduced friction and wear insulation; low cost. As the electrical environment of the whole vehicle becomes more and more complex and the new energy era is coming, only by constantly exploring the manufacturing technology of parts and components can the rapid iteration of new functions be met.