Fardriver field weakening. A synchronous motor produces a back-EMF .

Fardriver field weakening. You are not hitting the speed limits in the motor.

Fardriver field weakening. The user can also determine how many percentage of rotor magnetic field In other words, as this backEMF grows without field weakening, the amount of current needed to be pushed from the batteries through the motors windings by the ESC to get a resultant through-current of a much lower magnitude is huge, and thus counters the extra current you would be putting in for field weakening. But it is like the most translated chinese manuals not perfect at all and leaves a lot of questions. The proposed controller has improved motor performance and efficiency. Does the Fardriver app display an icon for Field Weakening??? j bjork 1 MW With flux weakening function. Thereby, the Jan 16, 2015 · When building an fast ebike there is many possibility offered. The company’s China headquarters is located in New York, USA. Welcome to subscribe email newsletter to us, get the lastest products and This example implements the field-oriented control (FOC) technique to control the torque and speed of a three-phase permanent magnet synchronous motor (PMSM). Field weakening sacrifices a bit of efficiency for a speed boost. SKP - (Advanced Users Only) PID controller response time Field Weakening: Here are some discussions of the field weakening capability of the Phaserunner and how that affects both the no-load current draw and the unloaded RPM. Other methods like increasing the dc bus voltage, tuning for su May 7, 2024 · I tried Field Weakening values entered via the Phaserunner Suite software of 20A, 15A, 10A. May 12, 2024 · At ratios in speed for gear 3, I also decreased the percentage of phase for 3000RPM to 90% and at 4000RPM to only 80%. It would cause excess currents, but normally only above the max speed of the motor. The last two of them will shure kill the Sabcoton SVMC. Nov 5, 2024 · Spark’s engineer dives into every detail about the Fardriver controller. While the flux-weakening capability of an IPM motor drive depends on the machine design, the proper control strategy is needed to obtain the maximum output torque given the inverter rating [9]. (The product does not contain magnetism) Product Description ND72340 are sine wave controller with waterproofing grade IP67, suit for 2-3kw motors. The short version is overspeeding e-bike wheels to 90mph, abuse plain and simple. 2N Also, the flux-weakening logic included in MotorWare should be revised when used with MTPA logic. My scooter consumes at 100km/h about 7kW, without weakening field. WeakRSP (Magnetic Field Weakening) Reducing this number effectively reduces the maximum RPM of the motor. I’ve gotten speeds of 84mph on a Huck running 3t motor,72v 150a dc with unlocked sabvoton 72150 controller. My use case is described here. I have not fully tested it yet. Both where running fine befor for a few hundred kilometers. Field weakening is a powerful tool that empowers motors to operate beyond their rated speeds, enhancing performance and efficiency. A high torque con-stant motor also has a high back-EMF con-stant. The Sabvoton turns off field weakening when you close the throttle and then you get a much higher voltage back from the motor than the controller can handle. 7 %¡³Å× 1 0 obj >/Outlines 5 0 R /Pages 2 0 R /Type/Catalog/PieceInfo 54 0 R >> endobj 2 0 obj > endobj 3 0 obj > endobj 4 0 obj > endobj 5 0 obj > endobj 6 0 obj >/Font >/XObject >>>/Type/Page>> endobj 7 0 obj > stream xœå]ÝŠ,· ¾ ì;̵!mýµZ‚ °×g _$9à NÀd v. Several field-weakening (FW) control methods were proposed in the literature [2-13]. May 29, 2024 · How much field weakening feature affects on top speed and acceleration on 60V 4000W hub motor, controller is FarDriver ND72360 Tilaa kanavani/Subscribe to m This document provides instructions for adjusting control parameters for an electric vehicle controller. 2021-07-06 f21. Field-weakening is used for motor control in automation applications and traction motor control for electric vehicles and locomotives to achieve higher motor speed when lower torque is acceptable. Following the description of the fundamentals of these drives, the Aug 10, 2024 · I have purchased the qs138 V3 70h, and the 72530 fardriver Home. If you want to use this feature, you need to make sure a couple of things are enabled. It also reduces the field component making torque which further reduces torque production. The trade off is less battery life more heat. It is an innovative enterprise approved by the Ministry of Science and Technology. Now with that new feature you can choose a motor that is rated higher torque ( Jan 13, 2023 · This is a cheap Chinese product. Conclusion. 72V Nov 28, 2019 · The motor runs in the field weakening area. Last edited: Sep 26, 2024 Masini Extremo, Fardriver ND721800 400A line and 1400A phase current , QS273 10kW , 21S5P power pouch Li-NMC Battery 7,7kwh , rebuilt in 2021 Jun 6, 2024 · I had installed a SVMC72260 and a SVMC72150 in my scooter, both died with field weakening in a no load scenario. Hoping I could get some input from others here. The 103kph was at 100A battery current, the 110kph was with 150A battery current. Sep 23, 2024 · When the bike is on the stand, the highest RPMs that I can hit is around 4700 according to the graph readout on the Fardriver app. The lower the number, the higher level of magnetic weakening is used, which means a setting of 0 is maximum field weakening. 2021-07-06. Oct 6, 2017 · How to "tune" a FarDriver controller for field weakening? Terrible Juan; Mar 30, 2023; EBike Technical; Replies 10 Views 6,390. -Enable field weakening starting when speed reach 30km/h-Max Id FOC Current 100 Amp-Turbo mode : 450 Phase Amp (User limit)Frame : Kawasaki D-Tracker 125Cont 3 days ago · Field/Flux Weakening & Boost Button Fardriver Controler. Loaded the amps will be much higher and its those amps that burn the motor so you need to understan Mar 30, 2023 · Masini Extremo, Fardriver ND721800 400A line and 1400A phase current , QS273 10kW , 21S5P power pouch Li-NMC Battery 7,7kwh , rebuilt in 2021 Mar 26, 2024 · My Fardriver only enters field weakening if it is needed to reach the demanded phase current. B. What is Field Weakening? Field weakening is a motor control technique that enables an electric motor to operate at speeds beyond its rated maximum. Change to a Fardriver ND72680 with up to 680A phase current and you will nearly double your starting tourque. ) NANJINGFARDRIVER PermanentMagnetSynchronousMotorController-HallUniversalEdition ND NanjingYuanquTechnologyCo. It looks like the controller software of Nanjing FarDriver was copied, and as far as I know, the HEX code of Nanjing FarDriver was stolen by some people and used to produce controllers of other brands Jun 9, 2021 · At ratios in speed for gear 3, I also decreased the percentage of phase for 3000RPM to 90% and at 4000RPM to only 50%. SIAECOSYS/FARDRIVER High Power Electric Motorcycle ND72360 Controller 360A 3000-4000W BLDC Programmable Fardriver For QSMotor FarDriver controller is sine wave type controller, which is brushless DC controller with self-learning function. 72V; Sep 22, 2024; EScooter/EMotorcycle Build Threads; 2. Aug 22, 2018 · It almost sounds like there's something wierd with Field Weakening setup, if this controller supports that. Fardriver has a complete permanent magnet synchronous motor control core technology, high product efficiency, high reliability, strong autonomy, can best match the motor, can quickly meet customer needs, popular products such as fardriver 72300, fardriver nd72360, fardriver 72530, fardriver 72450, fardriver nd72680. Harness Definition. this system, the current control loop enabled the curr ent to closely track changes in its given voltag e. Nov 24, 2022 · In this video I go over the implementation of field weakening. Grin simulator Jun 9, 2021 · The Sabvoton needed weakening field to get over 105kph at 84V, with my 13inch motor in my scooter. A synchronous motor produces a back-EMF . 6. May 24, 2017 · Field Weakening is a feature I plan to use heavily. if i add 20A of field weakening, will it then draw 20A more from the battery? or will it be converted by the controller as with phase amps? im running 80A with 180A phase on a sabvoton controller, and my battery is limited to pulling 80A. Fardriver two-line battle, Wu Huaming led a delegation to May 25, 2023 · This video is just to give some details on a tiny fraction of the settings in the FarDriver. The adaptive carrier ratio function related to the q-axis voltage is established, and the field weakening region is entered in advance at low carrier ratio. My 180kg scooter with QS260 60V5000W and SVMC72150 350A phase current and 165A line current. In . Set to zero by default values available 0-6 plus disable. This paper addresses an integrated vehicle drive, which was designed for constant torque to base speed and constant power over a 3:1 speed range. Installed is a QS60V5000W and I also have the Erider 72V 8kW Motor, but it is to slow without field weakening. A comparative analysis of field-weakening (FW) in vector controlled and DTC permanent magnet synchronous motor drives is performed. 72V. This approach involves the SIAECOSYS/FarDriver SIAYQ72350 350A ND72350 For 6000-8000W BLDC Electric Motorcycle Controller With Regenerative Braking Function. Jun 24, 2023 · Masini Extremo, Fardriver ND721800 400A line and 1400A phase current , QS273 10kW , 21S5P power pouch Li-NMC Battery 7,7kwh , rebuilt in 2021 field weakening. One of the unique features Fardriver has is the ability to adjust max amps at various RPM ranges. 2 remote digital throttle assemblies (so we can setup a 1/4 turn cabled dirtbike throttle and have some tactical feedback during the twist) Field weakening alters a servo motor’s torque-speed curve, allowing the motor to reach higher speeds for a given bus voltage. Forums. , Ltd. Oct 8, 2000 · The present paper highlights some important differences between DTC and vector drives in FW, such as quickness of torque response, torque/flux/current ripple content and implementation aspects. Then reconnect the DKD wire, which is again yellow and white, to the brown wire, that says boost, from the FarDriver Apr 15, 2019 · Furthermore, a field weakening (FW) control strategy based on the hybrid PWM technique is proposed to better utilize the DC-link voltage and extend the operation range of the OW-PMSM system. 2 Fundamental Theories of IPMSM Motor Driver 2. 0 is the default setting and we suggest leaving it there for a basic tune. The user can also determine how many percentage of rotor magnetic field Oct 29, 2023 · The Fardriver BOOST feature, like the Ratios in Speed settings, are PROTECTION features, not PERFORMANCE features. Sep 27, 2024. electric motorcycle, electric scooter, electric yacht, electric golf cart, electric ATV, electric surfboard, electric Oct 13, 2022 · With flux weakening function (The product does not contain magnetism) Product Description ND721200, ND841200 and ND961200 are sine wave motor controller with waterproofing grade IP67, suit for 8-12kw motors. Smooth operation and ready for ample field weakening! Auto Learn results on YQ72280 FarDriver, 11T Front / 55T Rear: Jun 20, 2023 · I killed two Sabvoton (svmc72260 and svmc72150) with Flux-Weakening and no load. Pole Pairs. Insulationclass DC1000VLeakagecurrent0. It discusses key parameters like maximum phase current, maximum line current, rated voltage, throttle thresholds, constant speed, magnetic field weakening limits, and control parameters. By understanding Introducing the custom QS90R! Features include more internal winding, 72V rating, 25% thicker phase lines compared to stock! Take advantage of the #35 bundle that includes 11T & 12T #35 race sprockets for the motor. Now with the fardriver I can drive 120kph at 250A battery current and even more, if I do not lower the ratios in speed at the highest rpm values. Simulator: https://github. (The product does not contain magnetism) Product Description ND72680/ND84680/ ND96680 are sine wave controller with waterproofing grade IP67, suit for 6-8kw motors. For a motor with a rated speed of 850RPM and 23 pole pairs and a max field weakening depth of 50%, consider 1275RPM the maximum speed of a hub motor when using field weakening. and the strength of the magnetic field in the motor gap (field strength). com/mguytv - thanks!Sign up for MGUY email newsletters here: https://zcu. use field weakening, the reason it can't go faster is because of the voltage vs the motor's rpm/volt rating field weakening will allow you to trick the motor into thinking it runs on a higher voltage so it will go even faster, this is a function of VESC. Aug 11, 2022 · Nanjing Fardriver Controller Co. In MTPA, field weakening was used to achieve a better higher speed range Jul 6, 2021 · Fardriver wins three championships and one second in China Electric Motorsports Competition. Now I'm running the scooter with a SVMC72150 with up to 14kW dc, but acceleration from start is to slow. The four values are divided into four quarters of the regen phase current set in the ratio. Mar 21, 2024 · Field weakening limit: gradually increase the current limiting parameters. I'm trying to set up the flux weakening for my fardriver, but really have no idea what I’m actually doing. Practically at this point, I don't think any more power should be sent through the controller, and any higher speed should originate from field weakening. If i set 45% at 1500rpm the controller draws up to 230A from my 21S battery and extends the max speed by 12km/h to 115km/h verified with GPS. The now installed motor was used before in a smaller scooter with 20 Lifepo4 cells and a standard Controller without field weakening. (If the torque constant is in Nm/A , and the voltage constant is in V/Radian/Sec — the With flux weakening function. Fardriver Controller 72V ND72530 330A Sine Wave Controller Oct 19, 2023 · If the controller can implement back EMF weakening, also known as field weakening, you can increase the top speed by 5-10%. 96680 or 96850 or 96890 should be ok for the 138 90h, also the NND48680, 84850 or 84890. However, I'm currently facing issues getting the motor to run, as the shaft is only twitching or locking in one position (in autolearn the shaft is turning slightly). It's mathematically equivalent to a phase advance, but this doesn't really help understanding It's Fardriver 72450 ND72450 ND84450 ND96450 Sine Wave Controller High Power Electric Motorcycle Controller with bluetooth, suit with brushless DC Motor. was established in October 2008. For ND72280, the peak voltage is 88V; It’s hall version (as default) which suit with hall motors. With flux weakening function Buy HEXEH QS138 Rated 4KW Peak 10KW PMSM Mid Drive Motor Kits with Fardriver ND72530,DKD Display,Throttle (Color : Sprocket Type): Throttle Controls - Amazon. If your motor is already known and tested to work above that speed with a different controller, same battery voltage, same setup otherwise, then it WeakRSP - Magnetic field weakening . Jun 9, 2021 · Field/flux weakening: I just barely found out something monumental yesterday that was causing me so much grief. Electric Bicycle. Field-Weakening Control Nov 13, 2023 · In recent decades the market share of electrical cars has increased significantly, which has paved the way for the development of automotive electronics. wound field excitation to improve the flux-weakening capability of the machines. Field-Weakening Control Aug 2, 2022 · They also don’t have field weakening so for these reasons they’re off my possible recommended controller lists-I’ve had two Votol EM150 eventually breaking under low load but these were ridden way outside of rated settings at other times. Dec 30, 2023 · But the big sabvoton died during playing with field weakening and I had to make a step back to a SVMC72150 before I changed to the fardriver. tv or https://twitter. This is achieved by reducing the magnetic field within the motor’s stator. When I spin the motor up, the speed stays at 0 km/h Sep 12, 2011 · How to "tune" a FarDriver controller for field weakening? Terrible Juan; Mar 30, 2023; EBike Technical; Replies 10 Views 5,612. At the moment, top speed is 65mph, would be good to push this past 70 to keep up with traffic on motorways. If not , try the other way 3 or 5 or even 7 which is listef as None. I think the 75-7 is much more capable than my motor because it has half the inductance. So it'll increase the heat. Jul 19, 2008 · The validity of the proposed field weakening technique is validated by computer simulations and experimental tests with a 5. 0V. FarDriver controller is sine wave type controller, which is brushless DC controllerwith self-learning function. Show abstract. Tell something about your setup, wheels, rpm, controller, settings, amps. Apr 8, 2024 · Ninja 250: FarDriver 841800 Track Edition, 23S2P A123 cells, 6000W QS273 : Ninja 250 "Clone" Made in China Electric Scooter: Votol EM-150, 72V 20Ah 24S1P A123 cells, 2000W QS205: Jun 24, 2022 · The increase in power density, in addition to the effects of weight and resource savings, has other benefits for active thermal field weakening. Adapter Cable. May 11, 2020 · I am looking for a controller that can handle this (400amps at 100Vdc, max voltage 118V) and also supports "field weakening". In your case you probably just need more amperage. Production and sales. but I do not need weakening field in my Aug 4, 2024 · SVMC72150 does 350A phase current. Bafang G310 (both hubs use the same 10T motor core) For some time I have found the model numbers in a far driver description to be somewhat confusing and I have been after some time now trying to get a breakdo Oct 11, 2018 · Hi! im having a bit of a struggle to understand field weakening. Here are the things I have found in the internet and here on ES. can i then use a bit of field weakening Jun 3, 2023 · My Fardriver ND72680 does 4 different regen phase currents, three are set with the throttle, depending on how fast you turn the throttle back to zero, the fourth is set with the brake contact. Jun 9, 2021 · Above the normal possible rpm the controller automatically enters field weakening and tries to reach the set value of phase current. Replies 38 Views 1,171. Some of the most important parts of modern electrical vehicles are motor drives, which are used in car training and mechanization. 7). I have read about field weakening, and that people are achieving nearly double the RPMs with this. Oct 27, 2023 · I know that you do not want to turn the flux weakening off, but it would be nice to see how much the flux weakening can raise the top speed. This particular case study delves into the simulation of field-oriented control, coupled with field weakening, aimed at regulating a salient-pole permanent-magnet synchronous motor (PMSM). Mar 31, 2023 · The FarDriver controller seems control flux weakening by restricting current at a given RPM. Fardriver won the Kunming Electric Motorcycle Championship. I think that the % is the ratio to the max phaseamps and everywhere where it's above the max rpm without field weakening it's the field weakening amps. What Motor do you use? You have entered 30 000w for the motor rating. 40mph on a bicycle or motorcycle requires a lot of power. How do I know when to start reducing current and then by how much? Please note the controller is off in this picture. Masini Extremo, Fardriver ND721800 400A line and 1400A phase current , QS273 10kW , 21S5P power pouch Li-NMC Battery 7,7kwh , rebuilt in 2021 Nov 8, 2023 · Field/Flux Weakening & Boost Button Fardriver Controler. The nominal speed in the specific example is 3000 rpm, with a speed of 6000 rpm reached during field weakening. 72V; Sep 22 Dec 5, 2023 · The significance of electric vehicles is progressively escalating, underscoring the criticality of technologies underpinning the functionality of their propulsion systems. With weakening field I reached with the same battery voltage 108km/h , consumption was 10,5KW. Drawing. Conventional Power Motor Controller 2kw-8kw 2021-07-08 f21. Jun 9, 2021 · My battery is capable of enough amps, but I think the Erider (Masini Extremo) frame is not strong enough for much more power. Field Weakening Ending Speed. Jul 21, 2017 · Ninja 250: FarDriver 841800 Track Edition, 23S2P A123 cells, 6000W QS273 : It also have a lot of nice features such as the field weakening, which allows you to Jul 10, 2018 · In Field Weakening the angle is adjusted so that some of the field opposes the permanent magnets and reduces the net field, thus changing the motor's effective motor constant, increasing the RPM and reducing the peak torque. 3 Tire Ratio Note that it has to be set correctly for the speed mileage calculations to be correct. üúQIêY•T­ÖŒº{zN Ž3 íH*U}õ«Òo/üÂÜ þ ÿ2Š öòÏ÷—ß^à»ÑŽƒŒ_þþóËO_]~}a / ¼ˆË Jun 1, 2021 · As the motor speed increases, the back EMF increases, and would eventually exceed the driver supply voltage. The user can also determine how many percentage of rotor magnetic field Apr 15, 2019 · The most common strategy is referred to as field-weakening control . be/K0AJmLvKjxwTesla Tricked You (Fir If none of the above works, then you need to contact the Fardriver to analyze the specific 224 or other special frames from 240-255. The lower back-EMF constant (torque constant) caused by the field weakening thus allows the motor to be run at a higher speed. The company has a complete permanent magnet synchronous motor control core technology, high product efficiency, high reliability, strong autonomy, can best match the motor, can quickly meet customer needs, popular products such as fardriver 72300, fardriver nd72360, fardriver 72530, fardriver 72450, fardriver nd72680. But I will try to put it in my thread so people can download it there. The FOC algorithm requires rotor position feedback, which is obtained by a quadrature encoder sensor. 0:00 Intro0:28 Why is field weakening needed?1:38 How fi Nov 7, 2024 · As field weakening evolves, new potential applications emerge, and research areas expand. 1 Basic Theory of FOC The torque in the synchronous machine is a vector cross product of the stator field or current vector and rotor magnetic field vector as shown in Equation 1 and Equation 2. Regen braking acted as expected, except commanding more regen via the throttle (a Grin feature) dropped regen immediately - I surmise the Amps tripped the limit. My scooter with the ND72680 took 7kw from the battery to drive at 100kph with activated field weakening or without, there is was no real difference. The current limit value we set should be considered based on actual needs. The difference in power came when I wanted to accelerate from 100 to the maximum speed. Electrical drives are used in powertrains for traction, in air conditioning systems to cool cars and their Feb 2, 2007 · Very impressed with the implementation of the gear reduction on the Bafang wheelbarrow motor vs. Im interested in knowing how to activate, deactivate and modulate field weakening for the fardriver controllers, any help would be greatly appreciated! Far Driver Tuning for E Bikes ! | Im interested in knowing how to activate, deactivate and modulate field weakening for the fardriver controllers, any help would be greatly appreciated Jun 9, 2021 · I'm using a Fardriver controller and have tried all three (0-Pulse, 1-Analog, 2-Isolated Pulse) speedometer modes on both analog (purple) and line speed (light blue) connections from the controller. They can handle motor phase short circuits, field weakening and a bms that cuts the battery during regen. Recall that back EMF (electromotive force) is voltage created when a coil turns inside a magnetic field Thank you for finding out this connection. ND72280 Spec. Nov 30, 2022 · Sabvoton is easy to self lean and program, but testing with the field weakening in no load conditoins will kill them defintily. Mar 3, 2022 · I started my build with an SVMC72260 (260A Battery 550A Phase) giving me 18kw but it died during a no load test with activated Flux-Weakening. Nov 28, 2019 · Based on current research into the mathematical model of the permanent magnet synchronous motor (PMSM) and the feedback linearization theory, a control strategy established upon feedback linearization is proposed. This is not a tutorial, its just some tips that a re. com FREE DELIVERY possible on eligible purchases Motor Genearlly Spec: Item: QS90 1KW PMSM Motor Motor Type: BLDC Permanent Magnet Inner Rotor Motor With Hall Sensor Motor Design: Single axle Matched Wheel: 10inch Wheel (as default) Magnet Height: 70mm, 5 pole pairs Rated Power: 1000W Rated Voltage: 48V-84V Speed: 2900RPM (basic RPM), 3500RPM peak with flux weakening Max Torque: approx 25. The Lie differential operation is performed on the output variable to obtain the state feedback of the nonlinear system, and the dynamic characteristics of the original system are In this video, I go over how the field weakening technique works and a common misconception about it. Nov 22, 2023. The company's China headquarters is located in New York, USA. ; Field Weakening Calculation: By entering the initial flux in A, variable flux in mAh, current max speed in km/h, and start speed in km/h, the calculator determines the flux component (Id), incorporating field weakening effects. eRPM Limit: Here we showed the Phaserunner controller running an RC outrunner motor at 72,000 eRPM's. The same with a Fardriver ND72680 680A phase current and 280A line current. Jul 6, 2021 · Essentially, field weakening applies a current, and thus magnetic field, in phase with the magnetic field in the opposite direction to the magnet polarity thus suppressing it and making the motor behave like a motor with weaker magnets. BareKuda. Oct 31, 2023 · My scooter made 103kph with a Sabvoton SVMC 72150 without weakening field, with 50A fiel weakening it made 110kph. for the first week using default and power settings because I didn't know better, The circuit breaker would trip constantly sometimes full throttle Generic Fardriver Programmable Bluetooth Adapter for Nanjing/Fardriver Controller Programming Module, bantam, black 1 offer from $2000 $ 20 00 Lesurey 72V 350A High Power Programmable Controller ND72530 Compatible with 6-8KW BLDC QS Motor Apr 17, 2022 · An adaptive field weakening control algorithm is proposed to solve the performance degradation problem of the traditional field weakening algorithm at low carrier ratio. View. However, ASI advised that beyond 60,000 eRPM the controller performance can Jul 13, 2023 · With activated weakening field battery current was 170A until a topspeed of 110km/h. Generally, it matches well with QS Motors, if you want to match with new brand motor, some parameters should be tested by yourself. Field weakening is suitable for a wide range of large commercial vehicles, such as those used in agriculture. for more info on fardriver check out this facebook group! plenty of posts with alot of good info i didnt cover, updates for the app, and more! - https://www. ND84530 3000-5500W 72V EV Progammable FOC Controller Fardriver Brand For Electric Scooter. But the SVMC72150 was slow at start, because 350A phase current is not enough. ND96850 SVMC72150 SVMC72260 Masini Extremo, Fardriver ND721800 400A line and 1400A phase current , QS273 10kW , 21S5P power pouch Li-NMC Battery 7,7kwh , rebuilt in 2021 This example implements the field-oriented control (FOC) technique to control the torque and speed of a three-phase permanent magnet synchronous motor (PMSM). Increased power density, and therefore loss density, will significantly reduce heat-up times, making high-speed and lightweight designs particularly suitable for thermal field weakening. fardriver controller electric motor controller like fardriver 72300, fardriver 72360 and fardriver 72530 etc, also with controller App supported. I autotune and it sets the mac RPM at 4800ish. But be careful when testing and start with lower settings so you don't fry your motor. Jan 9, 2024 · So my package with the qs180 and a fardriver nd961200b controller arrived today. For details about FOC, see Field-Oriented Control (FOC). From the DKD display wire, which is yellow and white, just disconnect that wire that was connected to the light blue wire from the FarDriver. The lower the number the higher level of magnet weakening is used. %PDF-1. 120-125kph seems to be possible now with Jun 9, 2021 · I blew up two sabvotons while playing with weakening field, not during driving , but on the main stand. You'd want to try just a little bit and watch out for arcing! (A video camera can help looking for arcing. 05 Jan 28, 2019 · Field Weakening changes the motor constant by decreasing Ke allowing for a little more speed. If the program wasn’t so screwed up i might recommend one. Image credit: Alxion. First a ND72680 now an ND721800. May 11, 2024 · This just shows some unloaded behavior of the Fardriver. This way there is no overlap between the throttle region and the braking region and a single wire can control both ranges. 2023 LBX this was a sort of a forced upgrade when the original controller burned ou? pick this one up for $400 including custom steel controller guard. The drawing I have is for the version 1 motor that I have, not the one they sell now. It is a high-tech enterprise specializing in automotive safety electronic products. New New (unread) Field/Flux Weakening & Boost Button Fardriver Controler. (1) (2) Jun 9, 2021 · Perhaps re read my post. Jun 6, 2022 · I have seen something in the 45kw range from the battery during field weakening. nz/MhEZ0:00 - Intro0 Torque Amps Calculation: Users can input their torque amps (Iq) to calculate the torque component accurately. 5 kW induction motor drive system. Page 18: Field Weakening For Speed Boost Baserunner Controller User Manual Rev 1. FarDriver 84530 controller (good for 60v-84v packs and rated at 330 battery amps and 530 phase amps) Generic Ct-22 dash display for watching speed, voltage, Temps, ect. 8V and reaches maximum intensity at 0. Sensor vs Jun 9, 2021 · The field weakening won't activate. (The product does not contain magnetism) Product Description ND72280 is sine wave controller with waterproofing grade IP65, suit for 2kw motors. c Sep 23, 2024 · I never needed to change this , as my 10kw hub motor reaches 80mph without field weakening. No, Tesla's Cybertruck is not faster than a Porsche 911 while towing!Watch the full MotorTrend video here: https://youtu. ,Ltd. Which means, every time you refer a customer to buy SIAECOSYS/FARDRIVER ND72680/ND84680/ND96680 High Power Electric Motorcycle Controller 680A BLDC Programmable with Bluetooth, we'll pay you a percentage of the sale as a thank you. Percentage of Field Weakening (f) Once the motor speed hits “Field Weakening Starting Speed”, the field weakening procedure starts to linearly reduce the magnetic field of rotor until the motor speed hits “Field Weakening Ending Speed”. May 26, 2023 · I to kiiled two Sabvotons a SVMC72260 and an SVMC72150, both died because of overvoltage created with weakening field and no load situation, where the wheel makes more than 50% more speed than on the road, the fets or the control board die immediatly during this overvoltage situation. Replies 38 Views 1,213. Field weakening enables higher motor speeds by reducing the back EMF generated by the motor. Let me make it a little clearer, here. We discuss future possibilities for field weakening in emerging technologies and industries. I ordered early december. Reducing this number will effectively reduce the maximum motor RPM. Running a higher voltage will increase your top speed but you can also increase top speed by introducing flux/field weakening. Bikes are inefficient at those sorts of speeds due to the aerodynamics. We would suggest using 0 as a preferred setting. Feb 28, 2022 · Ninja 250: FarDriver 841800 Track Edition, 23S2P A123 cells, 6000W QS273 : Ninja 250 "Clone" Made in China Field/Flux Weakening & Boost Button Fardriver Controler Elmo’s “Smart control” servo drives using Field Weakening technique to control the Lead-Lag between the back electromotive force (speed) and the current (torque) for optimum Speed-Torque performance. Jun 9, 2021 · Ninja 250: FarDriver 841800 Track Edition, 23S2P A123 cells, 6000W QS273 : Ninja 250 "Clone" Made in China Electric Scooter: Votol EM-150, 72V 20Ah 24S1P A123 cells, 2000W QS205: Jul 17, 2024 · Maybe try weak response 0 , as this should be the strongest weakening field setting and should make the motor spin faster. Sep 3, 2024 · Or Fardriver ND84 or ND96 series. Bluetooth Fardriver has a complete permanent magnet synchronous motor control core technology, high product efficiency, high reliability, strong autonomy, can best match the motor, can quickly meet customer needs, popular products such as fardriver 72300, fardriver nd72360, fardriver 72530, fardriver 72450, fardriver nd72680. 0 The regen voltage is mapped by default so that regenerative braking starts at 0. Using field weakening, the strength of gap field can be reduced, which reduces the back-EMF for a given speed. I doubt Field Weakening will be enough to protect my batteries, so I also want Dynamic Resistor Braking. Most notably the ND72360 and how to set up your account, do auto learn sequences, ad Oct 27, 2020 · The voltage closed-loop field-weakening scheme (VCFS) is an effective method to achieve the maximum output torque for induction motor (IM) high-speed drives. In the . proportional to the shaft speed of the motor . The electronic control approach is gener- Dec 26, 2023 · This research study uses a novel strategy to control the speed and torque of internal permanent magnet synchronous motor drives, focusing on flux-weakening methods that provide maximum torque per ampere (MTPA) and maximum torque per volt (MTPV) to use. Last edited: Jul 3, 2023 Masini Extremo, Fardriver ND721800 400A line and 1400A phase current , QS273 10kW , 21S5P power pouch Li-NMC Battery 7,7kwh , rebuilt in 2021 Field-weakening or flux-weakening is a technique for increasing the speed of an electric motor above its rating at the expense of reduced torque. Masini Extremo, Fardriver ND721800 400A line and 1400A phase current , QS273 10kW Field weakening is a valuable and versatile feature given for free to all the SOLO users. Jun 9, 2021 · The fardriver keeps the field weakening enabled until the motor ist back in a safe rpm range. You are not hitting the speed limits in the motor. With flux weakening function. If you set your controller for TURN AND BU fardriver controller 7000w with stock battery, safe settings? nd725350 stock 60v 38ah battery. A typical series motor is not really designed for field weakening. Email Newsletters. My scooter was 103kph with Sabvoton SVMC72150 without fw activated, now with the fardriver I have to limit to 115kph to not risk to overheat the motor to fast. It is needed to run permanent magnet motors above their base speed. I ran the learning process and the May 17, 2024 · Send tips or stories to email: simon@mguy. The director of international sales at far driver said this in an email yesterday: "fardriver produced 108V products in small batches last year, so we sell this product again. It can be used to achieve several different results, but mo Jun 6, 2011 · In my 48V car, field weakening raised the top speed from 39 mph to 55 mph But there's a big but! My Kostov motor is a sepex and designed for it. Kelly May 7, 2024 · Wondering how a rookie can be so good in their first handful of races? 🤯We sat down with Pedro Acosta's crew chief Paul Trevathan to quiz him about what Ped Jun 9, 2021 · There is no explicit field weakening setting but how I understood it it is in the ratios in speed. When the motor is overloaded, We value 'word of mouth' so much that we've put together a generous affiliate (referral) program. No anomalies were detected, no resets required, no smoke released. A few years before field weakening was getting popular and available, when you wanted to get higher speed ebike this also was meaning loosing torque. It can be applied to all three-phase motors, such as Brushless DC ( Jun 9, 2021 · Depends, you voltage max, how many cells you got, field weakening activated? Gear ratios print screen show. Then I changed to Fardriver. claq gwjd hugqfzx mswwto betufp mlrwd pbt nocezl ndjm lltiirc