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The traction electric drive is the «heart» of electric and hybrid transport. It converts electrical energy into mechanical traction and is directly responsible for the vehicle's acceleration, braking, and efficiency.
An electric traction drive replaces the internal combustion engine and the transmission (a single-speed gearbox is often used). Features: instant torque, quiet operation, high efficiency (up to 90–95%).
The electric drive works in conjunction with the internal combustion engine for acceleration, low-speed operation, and energy recovery.
They are powered by overhead contact lines, and the traction drive operates almost continuously in acceleration-braking mode.
They use batteries; the electric drive is optimized for energy efficiency and recuperation.
Individual drives are often used for each axle or bogie.
An electric traction drive completely replaces the internal combustion engine. Features: instant torque, quiet operation, high efficiency (up to 90–95%).
The electric drive works in conjunction with the internal combustion engine for acceleration, low-speed driving, and energy recuperation. It allows for short-term electric-only driving.
The electric traction drive completely replaces the internal combustion engine and transmission. Application features: high torque from zero RPM, fast and smooth acceleration without gear shifts, a simple kinematic scheme, and low noise and vibration levels.
Key features: hub motor or central motor, powered by lithium-ion batteries, fuel efficiency, compactness, and ease of maintenance.
The electric traction drive powers the drive wheels (one or two). Application features: high starting torque, smooth speed regulation during movement and turns, stable movement on inclines and ramps.
The electric traction drive is used for precise load positioning when working with racks, and for movement with a raised load at low speeds (creep mode).
Traction motors (asynchronous or synchronous) drive the wheelsets to rotate.
The electric drive ensures smooth acceleration and precise speed control in conditions of frequent stops.
The electric traction drive powers all wheels (4x4, 6x6, 8x8), with the possibility of implementing «crab steering.» Precise speed control at low RPMs is important.
The electric drive provides independent control of each track, smooth turning in place, and high traction at low speeds.
Electric ships and hybrid ships
The traction electric drive rotates the propellers.
Pros:
Traction electric drive is used for feeding workpieces and moving massive elements.
Used in conditions of high loads and prolonged operation.
Electric traction drives are used for moving cranes and trolleys, ensuring smooth operation and safe braking.
The electric drive is responsible for movement and maneuvering, and provides traction when moving across a section.
Electric wheelchairs and lifting platforms and stairlifts. The electric drive ensures autonomous and safe movement.
The traction electric drive is used in hybrid and fully electric transmissions, provides a smooth ride and low noise level
The electric traction drive is used for autonomous or remote movement and is used for transporting goods and equipment.
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