空燃比闭环控制的关键检测元件由氧传感器到稀混合气传感器,现已发展到宽范围空燃比传感器。它可使发动机在很宽的空燃比范围内实现线性检测,并且利用其反馈装置,可使以往只能开环控制的起动暖机、加速、大负荷工况都能实现闭环控制,使发动机处在“大功率”“无污染”“高经济性”的最佳控制范围内。 Air-fuel ratio closed-loop control of the key detection components from oxygen sensors to lean mixture sensor has been developed to a wide range of air-fuel ratio sensor. It enables the engine to achieve linear detection over a wide range of air-fuel ratios and, with its feedback device, enables closed-loop control in the past with warm-up, acceleration and high-load operating conditions that were previously only open-loop controlled so that the engine In the “high-power” “pollution-free” “high economy” within the best control.