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  2. Electric bicycle - Wikipedia

    en.wikipedia.org/wiki/Electric_bicycle

    The bicycle wheel hub is the motor. The power levels of motors used are influenced by available legal categories and are often, but not always limited to under 750 watts. With a front-drive the motor sits in the front hub, and with a rear-drive the motor sits in the rear hub.

  3. Brushless DC electric motor - Wikipedia

    en.wikipedia.org/wiki/Brushless_DC_electric_motor

    A brushless DC electric motor (BLDC), also known as an electronically commutated motor, is a synchronous motor using a direct current (DC) electric power supply. It uses an electronic controller to switch DC currents to the motor windings producing magnetic fields that effectively rotate in space and which the permanent magnet rotor follows.

  4. Power-to-weight ratio - Wikipedia

    en.wikipedia.org/wiki/Power-to-weight_ratio

    TP POWER TP100XL brushless DC motor [39] 7 kg 15 lb 75 kW 101 hp 9.0 kW/kg 5.5 hp/lb Electric vehicles: Emrax 268 brushless AC motor [40] 19.9 kg 44 lb 230 kW 310 hp 11.56 kW/kg 7.03 hp/lb Electric aircraft: Lucid Motors brushless DC motor [35] 31.4 kg 69 lb 500 kW 670 hp 15.8 kW/kg 9.68 hp/lb Electric vehicle H3X HPDM-250, direct drive [41]

  5. Wheel hub motor - Wikipedia

    en.wikipedia.org/wiki/Wheel_hub_motor

    A wheel hub motor, hub motor, or in-wheel motor is a motor that is incorporated into the hub of the wheel. Wheel-hub motors are commonly found on electric bicycles. Electric hub motors were well received in early electric cars, but have not been commercially successful in modern production cars [1] [2] because they negatively affect vehicle ...

  6. Outrunner - Wikipedia

    en.wikipedia.org/wiki/Outrunner

    The stationary (stator) windings of an outrunner motor are excited by conventional DC brushless motor controllers. A direct current (switched on and off at high frequency for voltage modulation) is typically passed through three or more non-adjacent windings together, and the group so energized is alternated electronically based upon rotor position feedback.

  7. BMW N63 - Wikipedia

    en.wikipedia.org/wiki/BMW_N63

    In 2012, a "Technical Update" was applied to the N63, resulting in the N63TU variants (also known as N63B44O1).The main upgrade was the addition of Valvetronic. [11] [12] Other changes include revised turbochargers, removal of the blowoff valve, lighter pistons, forged connecting rods and crankshaft, addition of a valve cover labyrinth oil catch/return system, new valve stem seals, revised ...