What transmission does the Volvo S90 use?

1 Answers
Jane
07/24/25 4:17am
Volvo S90 uses an 8-speed automatic transmission (8AT). It can quickly respond to changes in engine speed, provides smooth gear shifts, and the multiple switchable gear ratios mean the engine's torque and power range can be effectively utilized. More detailed information is as follows: 1. Two of the gears are overdrive gears, which can save fuel when driving at a constant engine speed. Manual gear selection is also available, and the current gear can be displayed on the driver's display. 2. The transmission is one of the main components of the automobile drivetrain. The actual usage conditions of a car are very complex, such as starting, idling, low-speed or high-speed driving, acceleration, deceleration, climbing, and reversing. This requires the car's driving force and speed to vary over a considerable range, while the output torque and speed range of the widely used piston engine are relatively small. To adapt to frequently changing driving conditions and allow the engine to operate under favorable conditions (higher power, lower fuel consumption), the transmission is set up in the drivetrain. 3. Each gear has a different gear ratio, equivalent to the meshing of small and large gears to produce different speeds. Low gear ratios (3rd gear and below) are used for low-speed driving, where the output shaft speed is lower than the engine speed. According to the formula P=FV, greater driving force can be obtained. High gear ratios (4th gear and above) are used for high-speed driving, where the output shaft speed is higher than the engine speed, reducing traction to achieve higher speeds. Shifting gears means selecting different sizes of gears to mesh with the output shaft gear.
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