Automatic Transmission: The的核心f an automatic transmission system, it houses the planetary gearsets and the hydraulic system that controls gear changes.
Torque Converter: Located between the engine and automatic transmission, it transmits the engine's power while allowing for smooth engagement and disengagement of gears.
Gear Selector: This is the lever or dial used by the driver to select different gear ranges, usually labeled as "P" (Park), "R" (Reverse), "N" (Neutral), "D" (Drive), and possibly additional modes.
Transmission Control Unit (TCU): The brain of the automatic transmission system, it receives inputs from various sensors and controls the hydraulic system to actuate gear changes.
Hydraulic Lines and Fittings: These carry the hydraulic fluid that actuates the transmission's internal mechanisms.
TCM Sensor: These sensors provide the Transmission Control Unit with data about the vehicle's speed, engine RPM, and other parameters to determine appropriate gear selection.
Drive Shaft: Transfers power from the transmission to the wheels.
Rear Axle Assembly: In most rear-wheel drive or all-wheel drive vehicles, the rear axle houses the differential and axles that deliver power to the wheels.
Shifter mechanism: This includes the shifter linkage and cable that connects the gear selector to the transmission.
Starter: An automatic transmission requires a starter with a special solenoid that engages the torque converter and allows the engine to start.
Flex Plate: Replaces the flywheel on a manual transmission and functions as the interface between the engine and the torque converter.
Transmission Mount: Supports the weight of the automatic transmission and absorbs vibrations and noise.
Electronic Control Module (ECM): The vehicle's main control module may need reprogramming to coordinate with the new automatic transmission system.
Wiring Harness: Some additional wiring may be necessary to connect the automatic transmission's sensors and control systems to the vehicle's electrical system.
