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Synchronized downshift rev-matching system (SynchroRev Match) is a technology invented by Nissan for use on the Nissan 370Z.In combination with the Electronic Control Unit (ECU) and various sensors, the engine electronically blips the throttle for the driver during both downshifts and upshifts to allow for better and smoother shifting, and improved handling.
A continuously variable transmission (CVT) is an automated transmission that can change through a continuous range of gear ratios, typically resulting in better fuel economy in gasoline applications. [1] This contrasts with other transmissions that provide a limited number of gear ratios in fixed steps.
The first Nissan/Jatco transmission, the Jatco 3N71 transmission, used a simple naming scheme: the "3" meant "3-speed", and the remainder was the series number.
The RL4R01A is a hydraulic controlled unit for its main operation. Shift timing is based on throttle cable position and governor pressure. Its only electronic parts are two solenoids, one for the torque converter clutch, and the other for the manual overdrive cancel switch, but these do not affect the gears control and passing.
The Jatco 3N71 transmission was the first 3-speed automatic transmission from Nissan. It was introduced as a conventional alternative to the then-ubiquitous and popular Borg-Warner Type 35 . It was designed for use with rear wheel drive vehicles with longitudinal engines .
Transmission experts recommend regular fluid changes for severe driving condition, every 80,000 km (50,000 mi). Specific fluid must be used. If incorrect fluid is used it could result in improper operation and lead to transmission damage. Aisin recommends to follow the scheduled maintenance. A badly done oil change can destroy the transmission.
The 2009 Nissan GT-R uses an updated version of the ATTESA E-TS, which is designed to work with the car's rear transaxle layout. The system is unique in the way that it utilizes two driveshafts under the vehicle's centerline, with a second driveshaft running slightly to the right of the main driveshaft which transfers power to the front wheels.
The 4N71 was a 4-speed automatic transmission from Nissan Motors. It was available as either a light-duty ("L4N71B") or medium-duty ("E4N71B") unit for rear wheel drive vehicles with longitudinal engines. The latter used an electronically controlled lock up torque converter. Applications: