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Brand: C.OEFT
OE numbers:FZA1-0002-FN
Product Name: Transmission control unit
Compatible model:
Product status: Remanufactured
Product weight: 3.000KG
Packaging size: 63X41X36cm
Product packaging: Neutral Packaging
Car Series: Japanese
Car Type: for Mazda 3 Axela and Mazda 6 Atenza
As the intelligent core of automatic transmissions, the Transmission Control Unit (TCU) has its product functions systematically divided into the following technical modules:
1. Shift Logic Control
① Dynamic Gear Decision-Making
·Analyzes parameters such as vehicle speed, engine speed, and throttle opening in real time, and selects the optimal shift timing according to preset algorithms (e.g., early upshifting in economy mode / delayed downshifting in sport mode).
· Supports multi-mode switching (economy/sport/snow, etc.) and adapts to different driving needs by adjusting shift curves.
② Actuator Coordination
·Controls solenoid valves to switch hydraulic oil circuits and drives clutches/brakes to complete gear changes, with a response speed of 10-50ms.
·Coordinates the actions of two sets of clutches in dual-clutch transmissions to achieve power-shift without interruption.
2 .Powertrain Optimization
① Improvement of Transmission Efficiency
· Reduces energy loss through torque converter lock-up control, increasing transmission efficiency by 5-8%.
·The adaptive learning function optimizes shift strategies according to driving habits (e.g., extending gear holding time during aggressive driving).
② Torque Coordination Management
· Links with the ECU to adjust engine ignition timing and reduce shift shock.
· Coordinates the output of the motor and transmission in hybrid models.
3. System Monitoring and Protection
① Fault Diagnosis
·Monitors parameters such as oil pressure and oil temperature in real time. When abnormalities occur, it stores DTC codes and triggers a fault light alarm.
·Supports Limp Home mode, which limits gears to ensure emergency driving of the vehicle.
② Communication Integration
·Shares data with systems such as ECU and ESP through the CAN bus to realize the coordination of the vehicle's powertrain.
4. Special Function Expansion
·Parking Logic: Automatically activates P-gear locking when the vehicle speed is below 2km/h.
·New Energy Adaptation: Integrates motor control algorithms in pure electric vehicles.
As the intelligent core of automatic transmissions, the Transmission Control Unit (TCU) has its product functions systematically divided into the following technical modules:
1. Shift Logic Control
① Dynamic Gear Decision-Making
·Analyzes parameters such as vehicle speed, engine speed, and throttle opening in real time, and selects the optimal shift timing according to preset algorithms (e.g., early upshifting in economy mode / delayed downshifting in sport mode).
· Supports multi-mode switching (economy/sport/snow, etc.) and adapts to different driving needs by adjusting shift curves.
② Actuator Coordination
·Controls solenoid valves to switch hydraulic oil circuits and drives clutches/brakes to complete gear changes, with a response speed of 10-50ms.
·Coordinates the actions of two sets of clutches in dual-clutch transmissions to achieve power-shift without interruption.
2 .Powertrain Optimization
① Improvement of Transmission Efficiency
· Reduces energy loss through torque converter lock-up control, increasing transmission efficiency by 5-8%.
·The adaptive learning function optimizes shift strategies according to driving habits (e.g., extending gear holding time during aggressive driving).
② Torque Coordination Management
· Links with the ECU to adjust engine ignition timing and reduce shift shock.
· Coordinates the output of the motor and transmission in hybrid models.
3. System Monitoring and Protection
① Fault Diagnosis
·Monitors parameters such as oil pressure and oil temperature in real time. When abnormalities occur, it stores DTC codes and triggers a fault light alarm.
·Supports Limp Home mode, which limits gears to ensure emergency driving of the vehicle.
② Communication Integration
·Shares data with systems such as ECU and ESP through the CAN bus to realize the coordination of the vehicle's powertrain.
4. Special Function Expansion
·Parking Logic: Automatically activates P-gear locking when the vehicle speed is below 2km/h.
·New Energy Adaptation: Integrates motor control algorithms in pure electric vehicles.
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