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What is the function of the dosing module?

2026-04-22

The Dosing Control Unit (DCU) serves as the core control unit within the SCR system of diesel vehicles. Its primary function is to precisely control the injection volume of the urea solution, thereby efficiently reducing nitrogen oxides (NOx) in the exhaust gas and enabling compliance with stringent emission standards, such as China VI.

Its core functions include:

**Real-time Data Acquisition and Analysis:** By receiving signals—including engine speed, torque, exhaust temperature, and NOx sensor readings—it dynamically monitors and assesses the engine's operating status.

**Precise Injection Control:** Based on current operating conditions, it calculates the optimal urea injection volume and utilizes CAN bus commands to actuate the urea pump and nozzle, thereby achieving precise, timed, and quantitative injection.

**Environmental and Anti-Crystallization Management:** In low-temperature environments, it initiates heating protocols to prevent the urea solution from freezing; simultaneously, it prevents over-injection—which could lead to ammonia slip—thereby ensuring the system operates cleanly.

**System Coordination and Diagnostics:** It works in coordination with the Engine ECU and supports On-Board Diagnostics (OBD) for fault detection, ensuring the system remains stable and reliable.

This module is widely deployed in commercial vehicles, off-road machinery, and similar sectors, serving as a critical component in achieving low-emission performance for diesel engines.

Rincian berita

Rumah > Berita >

Berita Perusahaan Tentang-What is the function of the dosing module?

Acara

Berita

Kasus-kasus

What is the function of the dosing module?

2026-04-22

Its core functions include:

**System Coordination and Diagnostics:** It works in coordination with the Engine ECU and supports On-Board Diagnostics (OBD) for fault detection, ensuring the system remains stable and reliable.

This module is widely deployed in commercial vehicles, off-road machinery, and similar sectors, serving as a critical component in achieving low-emission performance for diesel engines.

Sensor NOx Mesin

Sensor NOx Mobil

Sensor Nitrogen Oksida NOx

Motor Peniup Truk

Pompa Doser Urea

sensor DEF

Sensor PM

SENSOR ABS TRUK

Sensor Suhu Knalpot

Sensor Posisi Crankshaft

Sensor Tekanan Truk

SAKELAR JENDELA DAYA

Aktuator turbo VGT

Sensor NOx Mesin

Sensor NOx Mobil

Sensor Nitrogen Oksida NOx

Motor Peniup Truk

Pompa Doser Urea

sensor DEF

Sensor PM

SENSOR ABS TRUK

Sensor Suhu Knalpot

Sensor Posisi Crankshaft

Sensor Tekanan Truk

SAKELAR JENDELA DAYA

Aktuator turbo VGT

Rincian berita

Berita Perusahaan Tentang What is the function of the dosing module?

Berita

Kasus-kasus

What is the function of the dosing module?

Berita Perusahaan Tentang-What is the function of the dosing module?

Berita

Kasus-kasus

What is the function of the dosing module?