- ADD: No. 6, S. Haiyang Rd., Rugao, Jiangsu, CN
- Mob: 0086-13862820150(Whatsapp & Wechat)
- Tel: 0086-0513-66906591
- Fax: 0086-0513-66906595
- E-mail: email@example.com
- Product Introduction
Automotive oxygen sensor is the major sensor component in electronic fuel injection engine control system, and is the key part to control automotive exhaust emission, reduce automotive pollution and improve fuel combustion quality. Oxygen sensor is used in the feedback control system of the electronic control fuel injection device, to detect the concentration of oxygen in the exhaust gas and the air fuel ratio. It is also used to monitor theoretical air fuel ratio (14.7:1) combustion in the engine, and to provide feedback signals to the computer.
- Operating principle
The principle for concentration cell type oxygen sensor is that the difference of the oxygen partial pressure of the two ZrO2 solid electrolytes provides concentration potential. It uses the characteristics of ZrO2 with oxygen ion conduction and no electron conduction at high temperature, Nernst formula can be used to obtain the concentration potential value:
“R” in the formula is the ideal gas constant; “T” is the absolute temperature of the sensing element; “F” is faraday constant; “ ” is the oxygen partial pressure of the exhaust side; “ ” is the oxygen partial pressure in air. Thus, at a certain temperature, if the reference gas is the air (i.e., the reference oxygen partial pressure is known), the E value can be determined by the oxygen content of exhaust. A high voltage (0.6 ~ 1V) is generated between the electrodes when the oxygen concentration is low on the exhaust side of the substrate, and the voltage signal is sent to the ECU and amplified. The ECU processes high voltage signal as a rich mixture, and low voltage signal (about 0.1V) is considered as a dilute mixture. Based on the voltage signal feedback of the oxygen sensor, the computer will dilute or enrich mixture accordingly to reach optimal theoretical air fuel ratio.
- Product Features
Our motorcycle oxygen sensor can be applied to the following EFI motorcycle brands: Hero, Lifan, Honda, Benelli, Kawasaki, Suzuki Haojue, CFMOTO, Dayun, Dayang, Regal Raptor, Qianjiang, Jialing and Yamaha etc.
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