In automobile engine, NTC thermistor is like an outstanding "temperature scout", assisting the water temperature sensor to monitor the temperature change of engine coolant in real time, providing reference data for the engine to adjust fuel injection and ignition timing, so as to ensure the normal operation of the engine.
Whether it is a cold start in cold winter or a continuous high-temperature drive in hot summer, the automotive water temperature sensor can stably obtain engine coolant temperature information and avoid data distortion caused by temperature drift, all of which are supported by EXSENSE Electronics' VT series automotive NTC thermistor. The thermistor has a temperature range of -40℃~150℃, which ensures that the water temperature sensor can still work well in extreme ambient temperatures. Moreover, the high accuracy of NTC for automobile reduces error in the measurement process of water temperature sensor and optimizes its performance. In addition, the automotive NTC thermistor has excellent consistency and is not easily affected by external factors, which effectively improves the reliability of the water temperature sensor under complex working conditions.
With the excellent electrical performance of automotive NTC thermistor, water temperature sensor in automotive engine achieves:
1. Real-time monitoring and accurate perception
NTC thermistor is installed in the temperature probe of water temperature sensor, which is in direct contact with the engine coolant. When the coolant temperature changes, the NTC resistance value in the water temperature sensor changes, and this data is converted into a corresponding voltage signal via the circuit, which is then transmitted to the electric control unit (ECU). The ECU feeds this signal back to the instrument cluster of vehicle, allowing the driver to keep an eye on the engine at all times.
2. Performance optimization, green energy saving
When the ECU receives the temperature signal of the thermistor, ECU adjusts it according to the actual situation. In the engine cooling system, when the coolant temperature rises, the ECU will control the cooling fan to speed up and increase the heat dissipation efficiency of the radiator; When the temperature is lowered, ECU will reduce the fan speed appropriately to reduce unnecessary energy consumption. In the fuel injection system, the ECU will increase the amount of fuel injection at low temperatures to ensure the smooth start and stable operation of the engine; As the temperature rises, the ECU will gradually reduce the amount of fuel injected to achieve a reasonable fuel supply. It can be seen that the water temperature sensor equipped with EXSENSE Electronics’s automotive NTC thermistor can effectively reduce energy consumption and improve the overall performance of the engine.
3. Safety protection, fault warning
During the engine operation, when the coolant temperature exceeds the set safety threshold, the water temperature sensor will quickly send a signal to the ECU, and the ECU will immediately take emergency measures, such as increasing the speed of the cooling fan, increasing the flow rate of the water pump, and even reducing the engine power to prevent the engine from overheating and damage. At the same time, the NTC thermistor in the water temperature sensor, as a key component of fault diagnosis, will be fed back to the ECU in time when abnormal fluctuations in coolant temperature are detected, and the ECU will remind the driver through the instrument cluster of vehicle, which is convenient for rapid positioning and troubleshooting, are greatly improves the safety of the car.
To sum up, EXSENSE Electronics’s VT series automotive NTC thermistor has become the core component of the automotive water temperature sensor due to its excellent electrical performance. Through the resistance value-temperature conversion of automotive NTC thermistor, the water temperature sensor provides important data support for the thermal management of the automobile engine, providing a strong guarantee for the safe operation of the engine.
