Tag Archives: hub motor - Page 14

hub motor and the BLDC motor

Posted by on January 13, 2022 Comments Off on hub motor and the BLDC motor

Synchronous and BLDC motor are AC powered motor is AC power supply by 50 weeks and turn. BLDC motor is the stator into the alternating current, a rotating magnetic field, and the rotor magnetic field generated by the sensor, so that two magnetic field, along with the rotor and the stator rotating magnetic field rotation. Which slow the rotor than the stator rotating magnetic field, there is a deterioration of sync so called asynchronous machine. The hub motor stators with the BLDC motor, the rotor is formed artificially by adding the same DC magnetic field, so that the rotor on the stator rotating magnetic field along with the simultaneous turn before said hub motor. BLDC motor is simple, low cost, easy to install, use and maintenance. So widely used. Disadvantage and low efficiency, low power factor on the grid negative. The hub motor is a capacitive load, high efficiency, can improve the power factor, multi-purpose large-scale mining did not prepare.

hub motor and the BLDC motor stator windings are the same, the main difference is that the rotor structure. hub motor’s rotor with DC excitation windings, so they need external excitation power, the introduction of current through the slip ring; the BLDC motor’s rotor is short-circuited winding, the current generated by electromagnetic induction. In contrast, hub motor is more complex, high cost.

Uses: hub motor generators are mostly used in large-scale applications. The BLDC motor is used in almost all motor applications. hub motor can be flexible and adjust the input side of the excitation voltage and current phase, that is, the power factor; BLDC motor power factor is not adjustable, generally between 0.75-0.85, so in some large factories, BLDC motor used more often, you can attach a hub motor to do tune cameras, used to adjust the factory interface with the grid power factor. However, the hub motor, high cost and maintenance workload, compensation is now generally use capacitive power factor.

Comparison of motor start-up mode

1 Direct start: by the power capacity limit

2 series reactor startup: starting torque is not easy to lead, may be secondary impacts.

3. Autotransformer start: start a buck, there are secondary impacts, adjustable voltage range is limited.

4 soft-start variable resistance: thermal resistance, fluid resistance,

5. Magnetron soft start: adjust the conduction angle of SCR power controller to regulate the flux of change.

Soft-start frequency: AC – DC – AC mode, the voltage can be controlled to become the frequency AC power for high voltage motors.

Motor star delta starter

1 When the load on the motor starting torque is not critical but also limit the motor starting current and the motor to meet the 380V / Δ wiring conditions in order to start using delta method;

2 The method is: when the motor starts the motor connected as a star after a successful connection when the motor starts to divert into a triangular electrical wiring (by double-throw switch quickly switch);

3 due to motor starting current and power supply voltage to provide start-up time is proportional to the current full-voltage start-up current is only 1 / 3, but only full voltage starting torque starting torque for 1 / 3 Star delta starter, is a step-down start it at the expense of power in exchange for reducing the cost of starting current to achieve. It can not be dismissed and the size of the motor power required to determine whether a star delta starter, but also to see what kind of load, generally need to start light load, heavy load operation can still be a star delta starter, under normal circumstances, squirrel-cage motor starting current is 5-7 times the running current, and voltage requirements of the grid is generally plus or minus 10% (I remember) in order not to form the grid voltage is too large so the impact of a star delta starter, the general requirements in squirrel-cage motors power transformer rated power of more than 10% will use star delta starter. Only squirrel-cage motor was a star delta starter.

Basics of an Electric Hub Motor

Posted by on January 12, 2022 Comments Off on Basics of an Electric Hub Motor

There are two main types of electric bike motors, each with their own set of features and functions.

The hub motor:
• The motor is compact in size to fit into the wheel.
• Most hub motors provide great efficiency with relatively low noise.
• Many of the leading companies offer custom-made hub electric bike motors to fit the needs of the consumer.
• Initially, you have to set up the built-in programmer.
• The best models offer cruise control.
• The weight can range from 5-15kg, which is a lot.
• The power ranges from 250-1000 Watts depending on the hub motor regulations for the area.
• The price ranges from a $100 to as much as $500.
• It is extremely energy efficient with minimum loss of energy and the total cost of maintenance is surprisingly low.
• Generally, you have to modify the wheel to make room for the electric bike motor.

The brushless motor:
• The electric bike motor has electronic functioning.
• It is environmentally safe.
• The motor works with a DC current.
• Generally, a brushless motor has an integrated gearbox, which significantly increases the amount of motor torque.
• High speed cruising with this motor is a highly enjoyable experience.

If you intend on buying an e bike kit then it will come with one of these motors and probably a choice between wide ranges of power. E bike kits are easier to install for a first time user and a person with limited knowledge of machinery. However, if you want to construct an entire electric bike from scratch, then you should pay special attention to the electric bike motor specifications to select the kind that would fit your lifestyle.

Whether you are interested in purchasing an ebike or you’re looking into starting from scratch in order to create your very own customized electric bicycle, you will definitely need to know the basics of the electric bike motor.

Maintenance Procedures for Your Electric Bicycle Hub

Posted by on January 12, 2022 Comments Off on Maintenance Procedures for Your Electric Bicycle Hub

Keeping your electric bicycle well maintained and smoothly running is easier than you think. Some of these basic procedures are ones that you would use in a regular bike as well but practicing them regularly will add life to your electric bicycle and save you from a lot of trouble later on. Like any machine, simple maintenance procedures will help you get the most out of your electric bicycle and save you from extra expense in the future.

• Keep hub motor clean to maintain its efficiency and prolong its life.
• When cleaning the bike avoid getting too much water into hub motor. Like any motor, excessive contact with water can affect it.
• Even if you do clean the bike with water, be sure to wipe it dry to prevent rusting.
• Never leave your electric bike close to a heat source or under bright sunlight. It might damage the electric components.
• Keep your batteries charged and clean.
• Do not attempt to open up the motor, charger or other components. You might damage some of the delicate parts.
• Keep all of the mobile parts of the electric bicycle well oiled and lubricated.
• Check the brakes every few weeks to ensure that they are working properly.
• Check tires for damage and inflate them on a regular basis.
• If you are using your electric bicycle in a difficult terrain, you might need to replace some of the parts occasionally. Always buy quality components that will give you better performance and last you longer.
• If there is a problem with your electric bicycle, contact a repair shop instead of trying to fix it on your own. You might make matters worse.

If you follow these simple procedures, you’re going to get the most out of your bike and in the bargain, a vehicle that’s going to last you a lifetime.

Electric Bike Motor Dismantling Method

Posted by on January 9, 2022 Comments Off on Electric Bike Motor Dismantling Method

Electric bicycle industry, generally refers to the electrical motor assembly, including electrical heart, slow organizations. The following are talking about the electric bike motor means the motor assembly. First, remove the motor

Dismantling the motor before the motor and controller should first unplug the wire, then be sure to record the electrical lead wire color and the color of the correspondence between the controller.

Open the motor cover should be clean as a venue before, in order to prevent debris being sucked inside the magnet on the motor. Wheel well cover and the relative position of the mark. Note: Be sure to loosen the screw on the corner, so the motor casing.

Rotor and stator air gap is called the radial clearance (air gap), usually the motor air gap between the 0.25-0.8mm, when the demolition excluded bike motor complete motor failure, be sure to mark the original cover for assembly This can prevent the sweep chamber after the second assembly of the phenomenon.

Second, the motor gear lubrication

If there is brush and brushless motor have a gear wheel hub motor gear noise began to become larger, or replace the motor in gear, all the gear tooth surface should be painted with grease, grease or 3 general use specified by the manufacturer lubricants.

Third, the motor assembly

In assembling the brush motor, check the flexibility of the spring inside the brush holder, carbon brush and brush holder check whether there is grazing, check the carbon brushes in the brush where it can hold the maximum travel, pay attention to carbon brushes and commutator of the correct positioning of the to avoid carbon brushes or brush card bad grip.

When installing the motor, motor parts should first clean the surface of the impurities, so as not to affect the normal operation of the motor, and a certain firm fixed to the hub body, so as not to install due to the powerful magnet to attract, causing parts hit each other, damage.

BLDC Motor application introduction

Posted by on January 7, 2022 Comments Off on BLDC Motor application introduction

BLDC Motor is an DC motor, the load speed and frequency of the received power ratio is not constant relationship. Also changes with the size of the load. The greater the load torque, rotor speed, the lower. BLDC Motor, including induction motors, doubly-fed BLDC Motor and AC commutator motor. The most widely used induction motor, without misleading or confusing in the case, generally known as the induction motor BLDC Motor.

Ordinary BLDC Motor stator windings connected AC power grid, the rotor windings and no other power connections. Therefore, it has a simple structure, manufacture, use, and easy maintenance, reliable operation and low quality, and low cost.

Hub Motor with high efficiency and good performance characteristics, from no load to full load range almost constant speed, the majority of industrial and agricultural production to meet the requirements of mechanical transmission. Hub Motor protection is also easy to generate a variety of school types, in order to adapt to different environmental conditions need to Hub Motor is running, you must learn from the reactive excitation power grid, the grid power factor deterioration. Therefore, the drive ball mill, compressors and other high-power, low-speed machinery and equipment, often used synchronous motor.

Because BLDC Motor speed rotating magnetic field speed with a certain deterioration in the relationship, its speed performance is poor (except AC commutator motors).

hub motor damage

Posted by on January 7, 2022 Comments Off on hub motor damage

Most car engines are now electronically controlled fuel injection type gasoline engine, idling turn off for many reasons, first turn off idle to analyze the symptoms. If the engine enters the idle will stall, which we call “no idle”, caused by the reasons for this failure are generally: the engine hub motor damage; brake vacuum booster vacuum tube leaking; brake broken vacuum booster film; intake manifold leak; engine electronic control unit (ECU) in the idle speed control module problems. If the engine will stall at idle sometimes, and then restart normally, and we call it “intermittent idle flame”, this failure is very difficult to check, due to reasons are many, and a variety of components or circuits not completely damaged, and more occasional headache is due to turn off the engine after the restart and can return to normal, so even if due to the sensor causes the engine idle speed turn off the engine electronic control unit will think that this is not a malfunction, and will not be the engine electronic control unit record and therefore not from the engine electronic control unit fault diagnosis system to obtain information about the failure. Savannah, GA truck accident lawyer Geroge Smithe has exclaimed publicly the need to improve our detection models for this “Intermittent idle turn off” the general reasons are: the engine hub motor are catching; hub motor cortex some frayed wires; dirty idle air hole; engine throttle position sensor problem; camshaft position sensor or crankshaft position sensor has problems; engine speed sensor problem or dirty; the engine electronic control unit in the idle speed control program in question, etc. In addition, if the quality of gasoline can also cause problems such failure. Idle stall usually does not cause any harm, because the engine running at idle, often when the vehicle is stopping, if the idle speed when the vehicle stalled in the slide, due to the distance from the obstacle in front, you can take appropriate measures to avoid dangerous . Of course, if you happen to occur when the emergency brake turn off, then on the great harm, because once the engine is off, the vacuum brake booster does not work, the vehicle’s braking performance greatly reduced, and the direction of the power unit failure, the vehicle’s steering is heavy, if coupled with your panic, it is difficult to avoid a car accident but if somebody did. Generally speaking, according to an auto injury lawyer you have a legal duty to keep a proper lookout, and you have a legal duty to exercise due care. These duties are somewhat analogous to riding with situational awareness– that is, being aware of what is happening in the road environment and how that may affect you. You do not have a legal duty to anticipate the illegal behavior of others on the road. Nevertheless, if you are observant of your surroundings, and are able to assess the potential dangers posed by the actions of others, regardless of whether those actions are legal or not, you will be able to respond to potential hazards before they become actual collisions.It’s impossible to avoid intersections, but attention to the safety precautions mentioned above will reduce your risk of virtually every type of collision in an intersection.

Wheel hub motor of electric vehivles

Posted by on January 7, 2022 Comments Off on Wheel hub motor of electric vehivles

Wheel hub motor is one kind of electric motor of electric vehivles.

Electric bike hub motor has different forms based on their different frequencys and environmental conditions . Hub motors Characterized by different forms also have different features. Now widely used in electric vehicle motor permanent magnet DC motor. The so-called permanent magnet motor, is the use of permanent magnet motor coil excitation, do not use the coil excitation means. This eliminates the excitation coil power consumption when working to improve the mechanical and electrical conversion efficiency of the motor, this car is limited to the use of electric vehicles in terms of energy, can reduce the driving current, the line continued to extend the mileage. Electric vehicle motor according to motor power in the form of points, and the brush motor can be divided into two major categories of brushless motor; according to the mechanical structure of the motor assembly points, generally divided into the “teeth” (the motor speed is high, need to go through gear deceleration) and the “no teeth” (motor torque output without any slowdown) two categories.

Electric bicycle hub motor mechanical structures

Posted by on January 3, 2022 Comments Off on Electric bicycle hub motor mechanical structures

Electric bicycle hub motor mechanical structures:

Brush motor and brushless motor have different energization principles, and their internal structures are not the same. For the electric bicycle hub motor, the motor torque output (whether through the reduction gear body) is not the same, then they will have different mechanical structures.

1, Common high-speed brush motor internal mechanical structure. This wheel hub motor from the built-in high-speed brush motors heart, reduction gears, clutch, wheel cover and other components. Brush with high-speed hub gear motor is within the rotor.

2, common low-speed brush motor internal mechanical structure. This wheel motor from the carbon brushes, commutator, rotor, stator, motor shaft, motor end caps, bearings and other components. Brush speed gearless hub motor is external rotor motor.

3, common high-speed brushless motor of the internal mechanical structure. This wheel motor from the built-in high-speed brushless motors heart, planetary roller friction, overload clutch, output flanges, end caps, wheel housings and other components. High-speed brushless geared hub motor is within the rotor.

4, common low-speed brushless motor of the internal mechanical structure. This wheel motor from the rotor, stator, motor shaft, motor end caps, bearings and other components. Low-speed brushless gearless hub motor is external rotor motor.

electric motor systems -hub motor

Posted by on January 1, 2022 Comments Off on electric motor systems -hub motor

Motor is to convert electrical energy into mechanical energy of the equipment, it is the use of power by the force coil in a magnetic field the phenomenon of rotation is made, distributed to each user at the motor power by using divided into bldc motor and the hub motor, electric motor systems most of the hub motor, can be synchronous or asynchronous motor motor (stator magnetic field speed and rotor speed is not in sync speed). Mainly by the motor stator and rotor components. Power wire in the magnetic field direction of movement by force and magnetic sense of direction with the current line (the magnetic field direction) direction of the. Motor works by magnetic force on the current role of the motor rotation.

Hub motor engine combustion

Posted by on January 1, 2022 Comments Off on Hub motor engine combustion

Hub motor engine combustion

There are several forms of design, construction and arrangement of the engine combustion cylinder interna.

Illustration of three types of configurations: a: in-line engine (L) b: hub motor (V), c: VR6 engine.

Votre engine layout is the V. It cylinders are grouped in two banks or rows of cylinders forming a V which converge on the same crankshaft. In these engines the intake air is sucked inside the V and the exhaust gases expelled from the sides.

Used engines from five cylinders, especially in front wheel drive cars, as it shortens the length of the hub motor in half. The opening of the V varies from 54 º or 60 º to 90 º or 110 º but the most common are 90 º and 60 º. Volkswagen VR6 engine is a V6 only 15 ° opening, which allows slightly reduce the length of the engine (transverse arrangement).

Engines with V available in most common are:
V6
V8
V10
V12
There are also, although very rare, V5 engine. For example, the 2.3 Seat Toledo second generation engine mounts V5.

inline engine Lel (L) is usually available in configurations from 4 to 8 cylinders, the engine is an online all cylinders aligned in a row, without movement.

oposiciónExisten cylinders in three different types of engines with cylinder opposition, commonly referred to the English term flat-cylinder engine:

1.The Boxer
2.la V-180,
3.The cylinder horizontally opposed engine.
Erroneously tend to speak either of these three types of engine cylinders in opposition or confused. In Germany, the term boxermotor is a group in which the boxer motor and motor with V at 180 ° are taken as a provision.

Diagram cylinder boxer engine opposition, first patented by Karl Benz in 1896.El boxer engine is used in the Volkswagen Beetle, Volkswagen Kombi, the Porsche 911, and is currently used by Subaru (in the Impreza, Legacy, etc.). and are usually between 4 and 6 cylinders.

The V-engine 180, configuration very similar to the boxer engine is used by some special editions of Ferrari and Alfa Romeo. The basic difference is that occasionally the engine with V at 180 ° do not use a stump long as the boxer, but the connecting rods share the same position on the crankshaft, making as a piston on the crank the other away, opposite of what happens in the Boxer in which the pistons move away and come together. The 180 ° V engine is used more than 8 cylinders where it has been more effective, while the boxer is used in pairs with less than 6 cylinders and therefore have partnered each other as the same type of disposition.

The engine cylinder horizontally opposed boxer another name.
The advantage of these three types of engines with cylinders in opposition is that they have a lower height and center of gravity lower than that of their peers online and “V” has a more compact, and its elements to be shorter guarantee stability. The main disadvantage Boxer engine is the most cost development and manufacturing because it requires greater number of parts.

Boxer engines are mounted on motorcycles as well as cars. Has been set in the entire series of BMW motorcycles and Ural motorcycles

Meanwhile, and less exclusive, the horizontally opposed cylinder engines have been used since the late thirties in thousands of small aircraft and suffered minor improvements like all piston engines, such as the injection system or the ever more efficient supercharger systems, however, are engines with a configuration of the cylinder head valve (OHV) and a relatively low compression (6.6:1 usually) compared to modern automotive engines, as they are used under other such conditions, likewise, there were no aircraft engines with variable geometry turbocharger and has been developing since the mid-eighties for cars and diesel power in these engines is experimental.

radial or star form this group are two types of engines, both with radial arrangement of cylinders: radial engines and rotary type engines, both used primarily in aircraft engines as static engines. The difference is that radial engines maintain the fixed block, turning the crank on the inside, while the rotary type, the crankshaft remains fixed and the entire block that road.

How is the arrangement HTambién H, which is a sort of hybridization of two-cylinder engines as opposed to using two crankshafts, leaving a bench above the other to generate power for a single axis transmission medium between the two crankshafts.
Form W WOTRO is available which is a kind of double V combined into three or four banks of cylinders and a crankshaft, which dates from the 1920s, and are used in some modern vehicles of the Volkswagen Group, such as Audi A8, Volkswagen Touareg and Volkswagen Phaeton.