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Last updated February 1, 2026
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Egr valve flow modulation: BYDRecent Research Landscape

Inaccurate exhaust flow regulation leads to combustion inefficiency and emission non-compliance. This hardware configuration controls gas recirculation rates to maintain thermal balance and reduce NOx output.

What technical problems is BYD addressing in Egr valve flow modulation?

Exhaust condensate accumulation

(41)evidences

Condensate and particulate buildup within after-treatment components cause corrosion and flow obstruction. Effective drainage prevents component degradation and maintains catalyst efficiency.

Inconsistent cylinder air distribution

(36)evidences

Non-uniform airflow across intake runners causes combustion instability and power loss. Balancing flow improves volumetric efficiency and reduces emissions across all cylinders.

Inaccurate exhaust gas recirculation

(26)evidences

Inconsistent flow rates across varying engine loads lead to combustion instability and increased emissions. Precise modulation ensures regulatory compliance and fuel efficiency across the entire operating map.

Inaccurate recirculated gas flow

(20)evidences

Imprecise control of exhaust gas flow leads to combustion instability and excessive nitrogen oxide emissions. Accurate metering ensures regulatory compliance and engine efficiency across varying loads.