In a bid to draw in more riders and make e-motos more accessible, Zero Motorcycles has unveiled a new 'All Access' plan. At its core are six newly developed motorcycles, all priced under US$10,000. The first two electric motorcycles from this pack were unveiled at EICMA 2024.

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Category: Motorcycles, Transport

Tags: Zero Motorcycles, Electric Motorcycles, Off-road, Sur-Ron, Electric, Concept Bikes, EICMA 2024

Honda’s presence in the electric two-wheeler space has long been limited to one-off scooters and bikes. But all that is set to change with the Japanese maker unveiling a performance electric motorcycle called the EV Fun Concept at this year’s EICMA motorcycle trade show.

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Category: Motorcycles, Transport

Tags: Honda, Honda Motorcycles, Electric Motorcycles, Concept Motorcycles, EICMA 2024, Scooter

Global Impact: Regional Analysis and Market Penetration

DAB Motors has crafted a unique DAB 1α electric motorcycle inspired by the DeLorean time machine from “Back to the Future.” This bespoke model features a stainless steel body, exposed wiring, and CNC-machined wheels reminiscent of the iconic car. Notable design elements include a speedometer capped at 88 mph and an illuminated flux capacitor, paying […]

The objective of this technical article is to provide certain criteria and time intervals for conducting insulation tests on electric motors, generators and other electrical equipment. Testing is done to ensure that the equipment is intact and to provide a... Read more

The post Insulation tests on electric motors and generators: DC High Potential Testing (HiPot) appeared first on EEP - Electrical Engineering Portal.

Startup H3X, with a facility in Louisville, has ambitions to become the world's leading supplier of advanced electric motors.

Revolt RV400 Review: The era of electric mobility may have just begun as now the Indian two-wheeler market has all-electric products. But what is an electric motorcycle to ride like? Is it comparable to a conventional bike? Find out with us.

Since it is said that electric vehicles (EV) will be the future of mobility, automobile manufactures are focusing more on EVs. On the other hand, electric vehicles will not only save our environment as they produce zero emissions, but also save

Archives, Room Use Only - TK140.D3 D38 1929

An electric motor assembly includes a multi-phase electric motor, a battery of accumulators, an inverter configured to convert the direct current of the battery into multi-phase alternating current adapted to supply the motor, and a connection housing. The connection housing includes plugs allowing connection of motor phases, the battery terminals, and at least five connections to the inverter. The housing further includes a group of contacts allowing it to be connected to a single phase mains system, and a group of contacts allowing it to be connected a multi-phase mains system. The housing includes switches according to the position of which the system including the housing, the battery, the inverter, and the motor connected solely by its phases, alternatively allows the motor to be supplied from the battery, the battery to be recharged directly from a single-phase mains system, and the battery to be recharged from multi-phase mains system.

A method and a device for controlling and/or regulating an electric motor. Such electric motors are used for example in motor vehicles in the form of pump motors. In general, the electric motor is supplied with electrical energy from a battery and/or using a generator. The controlling and regulation take place using a high-frequency pulse width modulation (PWM). When the electric motor is started, the PWM is used to continuously increase the motor current required for the operation of the electric motor, e.g. beginning from 0.

An electric motor, having a stator (465), a rotor (470), and an apparatus for evaluating a signal provided for controlling said motor (110), comprises a receiving unit (430, 440) for receiving a control signal (PWM_mod), which is a pulse width modulated signal (PWM) onto which a data signal (DIR, DATA) is modulated. An evaluation unit (440) is provided for evaluating the modulated control signal (PWM_mod). The unit is configured to extract, from the modulated control signal (PWM_mod), data provided for operation of the motor (110). The control apparatus includes a signal generator (450) configured to generate, on the basis of the extracted or ascertained data provided for operation of the motor (110), at least one control signal for the motor (110), such as a commanded direction of rotation. Piggybacking other control data onto the PWM power level signal reduces hardware investment, by permitting omission of a signal lead which would otherwise be required in the motor structure.

A circuit for speed monitoring of an electric motor comprises a circuit for generating a time-frame signal, a circuit for receiving a first signal from a chopper driver circuit designed to drive the electric motor, a circuit for detecting chopper pulses in the first signal, a pulse counter, and a circuit for at least one of outputting and evaluating a state of the pulse counter, after the inactive state of the time-frame has been indicated. The time-frame signal indicates when a time-frame of predefined length changes from an inactive state to an active state and indicates when the time-frame changes back from the active state to the inactive state. The pulse counter is designed to count the detected chopper pulses while the active state is indicated by the circuit for generating the time-frame signal.

A method and device for controlling an electric motor, in particular a machine tool drive, wherein during a sensorless open-loop control mode of operation of the electric motor the speed and the torque are determined from the motor current and the motor voltage, and the moment of inertia of the electric motor torque are determined from the determined motor current and the determined motor voltage, wherefrom then a control torque is determined, which is then associated with an open-loop torque control value and supplied as the torque setpoint value to a control element for setting the motor current and/or the motor voltage in the open-loop mode of operation. As long as the speed is below a minimum speed, the control element receives as input variable a control or pilot control torque generated from a predefined moment of inertia for a sensorless closed-loop control mode of operation of the electric motor.

A method for monitoring input power to an electronically commutated motor (ECM) is described. The method includes determining, with a processing device, an average input current to the motor, the average input current based on a voltage drop across a shunt resistor in series with the motor, measuring an average input voltage applied to the motor utilizing the processing device, multiplying the average input current by the average voltage to determine an approximate input power, and communicating the average input power to an external interface.

The invention relates to an electric motor assembly, particularly for driving a fan for an engine cooling system and/or an air conditioner of a motor vehicle, comprising an electric motor and a motor control device for activating the electric motor. According to the invention, the motor control device can be adjusted according to a characteristic curve (1,2,3,4) of the electric motor and/or of the fan, and thereby the power and/or rotational speed of the electric motor can be adjusted.

An integrated circuit for controlling an electric motor, which has a primary component with a coil and a permanently magnetic secondary component cooperatively connected via an air gap to the primary component, has a semiconductor substrate in which are integrated a microcontroller and/or a pre-amplifier for controlling the coil of the electric motor. For detecting the position of the permanently magnetic secondary component, at least two magnetic field sensors with their measurement axes aligned crosswise relative to each other are integrated in the semiconductor substrate.

A circuit configuration for driving an electric motor includes a signal evaluation module, which stores a number of output patterns. An input pattern is specified, and as a function of the input pattern, one of the output patterns is output, by which the electric motor is driven.

A method for operating a brushless electric motor, the windings being energized by an inverter with the aid of six switches. A detection unit for detecting defective switches, a unit for measuring voltage at the outputs of the inverter, and a microcontroller for controlling the switch and for generating a pulse width modulated voltage supply for the windings are provided. A short-circuited switch causes a torque in the electric motor opposite the actuating direction of the electric motor. The method proposes that after detecting a short-circuited switch, the windings (U. V. W) are energized to generate a motor torque that is, on the whole, positive. An actuating period of the electric motor is divided into a plurality of sectors, wherein, in accordance with the defective switch, individual sectors are deactivated for the actuation of the windings (U, V, W), while other sectors are used to actuate the windings (V, W).

A tongue pulled spreader and grader system having a pair of spaced apart sidewalls and cross beams to define a frame portion, a plurality of moveable or fixed blades extending between the sidewalls, each blade positionable along the length of each sidewall and fixed in position at a predetermined angle; a tongue for mounting the frame to the rear of a vehicle; a pair of wheels positioned on an axle on either side of the sidewalls; means for manually or hydraulically extending the wheels to a down position to make contact with a surface in order to transport the spreader and grader and for retracting the wheels to an up position so that the spreader and grader can undertake the grading process. The spreader and grader can attach to and be operated by ATVs, SUVs, light trucks, lawn tractors, sub compact tractors, side by side ATVs and fork trucks.

A multistage turbomachine is disclosed, comprising a casing with a fluid inlet and a fluid outlet and a plurality of stages arranged in the casing. A flow path extends from the fluid inlet to the fluid outlet through the sequentially arranged stages. Each stage is comprised of a rotating impeller and an electric motor embedded in the casing and arranged for rotating the impeller at a controlled rotary speed. Each electric motor comprises a motor rotor, arranged on the impeller and integrally rotating therewith, and a motor stator stationarily arranged in the casing. Pairs of sequentially arranged impellers are configured for rotation in opposite directions.

A rotor core for an electric motor includes a stack of laminations having peripherally spaced openings receiving copper bars with opposite end portions projecting from the stack. The core is mounted on an arbor and is inserted into a mold on a vertical die cast press having a shot chamber. The mold has upper and lower mold members defining annular cavities receiving end portions of the bars. Molten copper or aluminum is poured into the shot chamber and forced upwardly by a shot piston through passages in the lower mold member and into the cavity around the lower end portions of the bars. The pressurized molten metal solidifies and shrinks around the bar end portions to form an endring for the rotor. The core, endring and arbor are inverted and confined in the mold, and the casting steps are repeated to form the opposite endring.

An electric motor assembly includes an axle having a first end and a second end. A plurality of rotor stages is attached to the axle. The rotor stages each include a set of rotor magnets. Each set has a greater potential magnetic field as the sets are located further from the first end. A plurality of stators is positioned around the rotor stages so that each of the rotor stages is adjacent to and covered by one of the stators to define a plurality of mated pairs. The stators each include a plurality of stator magnets. A stator control, for controlling individual ones of the pairs, is electrically coupled to each of the stators and magnetizes the stator magnets in a controlled fashion with respect to the rotor magnets to urge the rotor magnets in a same direction and rotate the axle.

An electric motor includes a stator operable to produce a magnetic field and defining an opening, and a rotor at least partially disposed within the opening. The rotor includes a shaft extending along a rotational axis, a first rotor magnetic core portion including a plurality of laminations stacked contiguously on the shaft, and a second rotor magnetic core portion coupled to the plurality of laminations. The first rotor magnetic core portion and the second rotor magnetic core portion cooperate to define the rotor magnetic core. A plurality of windings is coupled to the rotor magnetic core and an air flow path is formed as part of the second rotor magnetic core portion. The air flow path includes an axial portion that passes through the shaft axially along the rotational axis and a radial portion that extends radially outward through the second rotor magnetic core portion.

Revolt RV 400 has finally been launched in India. With features like smartphone connectivity and multiple exhaust sounds, the RV 400 is definitely in a segment of its own. But what is an electric motorcycle to ride like? How does it compare with conventional motorcycles? Abhilasha Singh test rode the RV 400 to answer these […]

The Department of Justice announced today that it has reached a settlement that will require Regal Beloit Corporation (RBC) to divest its U.S. business for electric motors for pool and spa pumps to SNTech Inc. and to divest A.O. Smith Corporation’s (AOS) development work and related assets for draft inducers for high-efficiency furnaces to Revcor Inc., in order to proceed with RBC’s acquisition of AOS’s electric motor business.

Norwegian engineering students debut an electric motorcycle made from carbon fiber. They say it will be fast, cheap, and get 100 kilometers to a charge.

Exports of Generation of Current, Electric Motors in Switzerland increased to 231.15 CHF Million in March from 231.04 CHF Million in February of 2020. Exports of Generation of Current, Electric Motors in Switzerland averaged 175.71 CHF Million from 1988 until 2020, reaching an all time high of 326.92 CHF Million in October of 2008 and a record low of 55 CHF Million in January of 1988. This page includes a chart with historical data for Switzerland Exports of Generation of Current, Electric Motors.

Imports of Electric Motors & Generators in Japan increased to 18365.33 JPY Million in March from 13490.79 JPY Million in February of 2020. Imports of Electric Motors & Generators in Japan averaged 12137.46 JPY Million from 1988 until 2020, reaching an all time high of 29021.96 JPY Million in June of 2011 and a record low of 2285.71 JPY Million in April of 1988. This page includes a chart with historical data for Japan Imports of Electric Motors & Generators.

Since it is said that electric vehicles (EV) will be the future of mobility, automobile manufactures are focusing more on EVs. On the other hand, electric vehicles will not only save our environment as they produce zero emissions, but also save

Hey robot futurist! We've got one word for you: Actuators. They're the motorized joints that make robots strong, agile, and precise and they're getting better all the time.

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