As the core of automotive liquid cooling system, coolant temperature sensor mainly uses NTC thermistor to monitor the temperature of the coolant and send signals to the electronic control unit (ECU) to maintain optimal engine performance. If a liquid-cooled sensor fails, it can cause the following:

First, the exhaust pipe produces black smoke

Incorrect signals from failed coolant temperature sensor can cause abnormal conditions in the engine fuel. If there is too much fuel, the excess fuel will not be burned out in the combustion chamber, but will burn as the exhaust gas is discharged, resulting in black smoke coming out of the exhaust pipe.

Second, the working temperature of the engine is too high

NTC thermistor in the failed coolant temperature sensor will send an incorrect message to the electronic control unit, resulting in misjudgment, or causing the engine to heat up and cause flameout or even knocking;

Third, the working performance of the engine deteriorates

If a failed coolant temperature sensor misjudges the coolant temperature and signals that it is too hot, the electronic control unit will reduce the fuel injection ratio accordingly to cool the engine. At this point, the engine's performance settings are disturbed, and the driver will feel that there is a lack of power during acceleration.

In order to avoid the above situation, improve the temperature sensing accuracy and anti-interference ability of the coolant temperature sensor, let us introduce an automotive NTC thermistor produced by EXSENSE Electronics Technology Co., Ltd. Compared with most thermistors on the market, this product has the following advantages:

First, the thermal response speed is fast, and the characteristics of high sensitivity make thermistor can assist the coolant temperature sensor to carry out real-time temperature monitoring quickly;

Second, excellent reliability, which can improve the working efficiency of the coolant temperature sensor, reduce its failure risk;

Third, it can withstand high temperature for a long time, and the automotive NTC thermistor can better adapt to the high temperature working environment of the coolant temperature sensor to help it play the best performance.