【摘要】 对发动机处于稳态进行爆震传感器信号的测定,分析信号与爆震之间的关系,得出各个工况稳态情况下声场分布情况,从而找到该稳态工况下爆震时的标定限制;同时在瞬态工况下对其进行验证,根据试验数据,相应地调整瞬态修正值。更多还原

【Abstract】 Signal of the knock sensor in steady-state condition by turning spark is measured,to analyze the relationship between engine knock and signal of the knock sensor and to find the pressure oscillations in each steady-state condition.Consequently the threshold of the condition can be locked for engine knock detection and is verified under the transient conditions.According to the test data,the transient correction value is adjusted correspondingly.更多还原