Overview
Automotive oxygen O2 sensors are critical feedback sensors in electronic fuel injection (EFI) engine control systems. They play a key role in controlling vehicle exhaust emissions, reducing environmental pollution, and improving fuel combustion quality in automotive engines.
By measuring the oxygen ion concentration in the exhaust gases, the sensor provides the air-fuel ratio (A/F) signal to the engine control unit (ECU). When the air-fuel ratio is around 14.7, the engine achieves the optimal mixture concentration, leading to improved fuel efficiency and reduced harmful gas emissions.
Key Features
- High accuracy, fast response, high temperature resistance
Applications
These sensors are used to detect the oxygen content in vehicle exhaust gases and convert it into an electrical signal. This allows the control system to adjust fuel injection and ignition timing, ensuring optimal combustion efficiency and fuel economy.
Technical Specifications
| Items | Specifications(Exhaust gas temperature 650°C) |
| (mV)Sensor voltage at 入=0.93~0.97 | ≥720 mV |
| (mV)Sensor voltage at λ=1.05~1.10 | ≤120 mV |
| Response time(ms) Falling:600mV~300mV | ≤150 ms |
| Response time(ms) Rising:300mV~600mV | ≤100 ms |
