Electric transmission or electric powerchain is a transmission system for propelling motor vehicles. It is used for in road, rail, and marine transport. The defining characteristic of electric transmission is that it avoids the need for a gearbox, by converting the mechanical force of the engine into electrical energy (through a dynamo or alternator), and using the electrical energy to drive traction motors, which propel the vehicle mechanically. The traction motors may be driven directly, or in some cases, via a rechargeable battery; if rechargeable batteries are used, the vehicle is considered to be a hybrid vehicle.
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| - Electric transmission (propulsion) (en)
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| - Electric transmission or electric powerchain is a transmission system for propelling motor vehicles. It is used for in road, rail, and marine transport. The defining characteristic of electric transmission is that it avoids the need for a gearbox, by converting the mechanical force of the engine into electrical energy (through a dynamo or alternator), and using the electrical energy to drive traction motors, which propel the vehicle mechanically. The traction motors may be driven directly, or in some cases, via a rechargeable battery; if rechargeable batteries are used, the vehicle is considered to be a hybrid vehicle. (en)
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| - Electric transmission or electric powerchain is a transmission system for propelling motor vehicles. It is used for in road, rail, and marine transport. The defining characteristic of electric transmission is that it avoids the need for a gearbox, by converting the mechanical force of the engine into electrical energy (through a dynamo or alternator), and using the electrical energy to drive traction motors, which propel the vehicle mechanically. The traction motors may be driven directly, or in some cases, via a rechargeable battery; if rechargeable batteries are used, the vehicle is considered to be a hybrid vehicle. Electric transmission is usually classified as multiple separate transmission methods, according to engine type; for example, a vehicle powered by a petrol engine, using electrical transmission, would usually be classified as having petrol-electric transmission, despite the fact that the petrol engine is part of the engine, the transmission being a separate system. Electric transmission was first used in the early 1920s. It was generally found to be unfavourable compared to the other methods available at the time, traditional steam locomotive transmission being up to 15% more efficient. However, by the late 1920s it was recognised as the best for larger vehicles. (en)
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