Working principle:
* Automatic transmission (automatic transmission): A hydromechanical transmission that uses a hydraulic transformer and planetary gears to change gears.
* Robotic transmission (RM): Mechanical transmission with clutch drive and gear shift, controlled electronically.
Design:
* Automatic transmission: Consists of a hydraulic transformer, planetary gears, clutches and control system.
* Manual transmission: Uses a conventional manual transmission, but uses electric motors and electronics instead of mechanical gear shifting.
Gear shift:
* Automatic transmission: Gears shift smoothly and without driver intervention. The gear shift moment is determined by the gearbox control algorithm.
* Manual transmission: Gears are switched electronically, but at a higher speed than in a manual transmission. Gear changes may be felt by the driver in the form of jolts.
Efficiency:
* Automatic Transmission: Less efficient than a manual transmission due to energy loss in the hydraulic transformer.
* Manual transmission: More efficient than automatic transmission because it does not lose energy in the hydraulic transformer.
Reliability:
* Automatic Transmission: Generally considered less reliable than a manual transmission due to its more complex design and components that are subject to wear.
* Manual transmission: Generally considered more reliable than automatic transmission because it is based on a time-tested manual transmission.
Price:
* Automatic transmission: Typically more expensive than a manual transmission or manual transmission.
* Manual transmission: Usually cheaper than automatic transmission.
Convenience:
* Automatic transmission: More convenient because the driver does not have to manually change gears.
* Manual transmission: May be less convenient due to shifting jerks and the need for manual shifting.
Application:
* Automatic transmission: Widely used in various types of cars and trucks.
* Manual transmission: Most often used in economical passenger cars.