Fardriver field weakening. 0:00 Intro0:28 Why is field weakening needed?1:38 How fi.

Fardriver field weakening. 40mph on a bicycle or motorcycle requires a lot of power.

Fardriver field weakening. Aug 11, 2022 · Nanjing Fardriver Controller Co. 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. , Ltd. So it'll increase the heat. Field Weakening Ending Speed. 0 The regen voltage is mapped by default so that regenerative braking starts at 0. 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. Harness Definition. You'd want to try just a little bit and watch out for arcing! (A video camera can help looking for arcing. The lower the number, the higher level of magnetic weakening is used, which means a setting of 0 is maximum field weakening. 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. Here are the things I have found in the internet and here on ES. I ordered early december. Conventional Power Motor Controller 2kw-8kw 2021-07-08 f21. 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. 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. Oct 6, 2017 · How to "tune" a FarDriver controller for field weakening? Terrible Juan; Mar 30, 2023; EBike Technical; Replies 10 Views 6,390. The lower the number the higher level of magnet weakening is used. May 11, 2024 · This just shows some unloaded behavior of the Fardriver. What is Field Weakening? Field weakening is a motor control technique that enables an electric motor to operate at speeds beyond its rated maximum. A typical series motor is not really designed for field weakening. But it is like the most translated chinese manuals not perfect at all and leaves a lot of questions. 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. 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. Jun 6, 2022 · I have seen something in the 45kw range from the battery during field weakening. The trade off is less battery life more heat. I have read about field weakening, and that people are achieving nearly double the RPMs with this. Bikes are inefficient at those sorts of speeds due to the aerodynamics. But I will try to put it in my thread so people can download it there. 72V. The same with a Fardriver ND72680 680A phase current and 280A line current. 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. Field weakening is a powerful tool that empowers motors to operate beyond their rated speeds, enhancing performance and efficiency. Jan 9, 2024 · So my package with the qs180 and a fardriver nd961200b controller arrived today. The current limit value we set should be considered based on actual needs. Insulationclass DC1000VLeakagecurrent0. 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. eRPM Limit: Here we showed the Phaserunner controller running an RC outrunner motor at 72,000 eRPM's. 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. Grin simulator Jun 9, 2021 · The Sabvoton needed weakening field to get over 105kph at 84V, with my 13inch motor in my scooter. 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. 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. 05 Jan 28, 2019 · Field Weakening changes the motor constant by decreasing Ke allowing for a little more speed. If not , try the other way 3 or 5 or even 7 which is listef as None. It would cause excess currents, but normally only above the max speed of the motor. 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. 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). This approach involves the SIAECOSYS/FarDriver SIAYQ72350 350A ND72350 For 6000-8000W BLDC Electric Motorcycle Controller With Regenerative Braking Function. 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. 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. Image credit: Alxion. 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. Reducing this number will effectively reduce the maximum motor RPM. 72V; Sep 22, 2024; EScooter/EMotorcycle Build Threads; 2. The lower back-EMF constant (torque constant) caused by the field weakening thus allows the motor to be run at a higher speed. Now I'm running the scooter with a SVMC72150 with up to 14kW dc, but acceleration from start is to slow. 5 kW induction motor drive system. 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. But the SVMC72150 was slow at start, because 350A phase current is not enough. ND72280 Spec. 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%. %PDF-1. -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. Generally, it matches well with QS Motors, if you want to match with new brand motor, some parameters should be tested by yourself. The four values are divided into four quarters of the regen phase current set in the ratio. (The product does not contain magnetism) Product Description ND72680/ND84680/ ND96680 are sine wave controller with waterproofing grade IP67, suit for 6-8kw motors. It also reduces the field component making torque which further reduces torque production. 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. The difference in power came when I wanted to accelerate from 100 to the maximum speed. My use case is described here. Hoping I could get some input from others here. 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. Mar 21, 2024 · Field weakening limit: gradually increase the current limiting parameters. Electric Bicycle. Both where running fine befor for a few hundred kilometers. 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. May 24, 2017 · Field Weakening is a feature I plan to use heavily. Now with that new feature you can choose a motor that is rated higher torque ( Jan 13, 2023 · This is a cheap Chinese product. 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. 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%. Adapter Cable. I autotune and it sets the mac RPM at 4800ish. 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. One of the unique features Fardriver has is the ability to adjust max amps at various RPM ranges. but I do not need weakening field in my Aug 4, 2024 · SVMC72150 does 350A phase current. Nov 22, 2023. 8V and reaches maximum intensity at 0. Page 18: Field Weakening For Speed Boost Baserunner Controller User Manual Rev 1. Change to a Fardriver ND72680 with up to 680A phase current and you will nearly double your starting tourque. 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. Simulator: https://github. Jun 9, 2021 · Field/flux weakening: I just barely found out something monumental yesterday that was causing me so much grief. 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. 2N Also, the flux-weakening logic included in MotorWare should be revised when used with MTPA logic. c Sep 23, 2024 · I never needed to change this , as my 10kw hub motor reaches 80mph without field weakening. 96680 or 96850 or 96890 should be ok for the 138 90h, also the NND48680, 84850 or 84890. The 103kph was at 100A battery current, the 110kph was with 150A battery current. The FOC algorithm requires rotor position feedback, which is obtained by a quadrature encoder sensor. 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. 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. 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. proportional to the shaft speed of the motor . 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 . Set to zero by default values available 0-6 plus disable. Email Newsletters. A high torque con-stant motor also has a high back-EMF con-stant. Sep 3, 2024 · Or Fardriver ND84 or ND96 series. Mar 31, 2023 · The FarDriver controller seems control flux weakening by restricting current at a given RPM. How do I know when to start reducing current and then by how much? Please note the controller is off in this picture. was established in October 2008. 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. Sep 27, 2024. A comparative analysis of field-weakening (FW) in vector controlled and DTC permanent magnet synchronous motor drives is performed. A synchronous motor produces a back-EMF . 6. wound field excitation to improve the flux-weakening capability of the machines. In the . 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. The proposed controller has improved motor performance and efficiency. (The product does not contain magnetism) Product Description ND72280 is sine wave controller with waterproofing grade IP65, suit for 2kw motors. 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. 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. 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. 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. 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. 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. I think the 75-7 is much more capable than my motor because it has half the inductance. 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). (The product does not contain magnetism) Product Description ND72340 are sine wave controller with waterproofing grade IP67, suit for 2-3kw motors. View. Field weakening sacrifices a bit of efficiency for a speed boost. 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. 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]. What Motor do you use? You have entered 30 000w for the motor rating. No, Tesla's Cybertruck is not faster than a Porsche 911 while towing!Watch the full MotorTrend video here: https://youtu. 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. 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. 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. With weakening field I reached with the same battery voltage 108km/h , consumption was 10,5KW. 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. 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%. Several field-weakening (FW) control methods were proposed in the literature [2-13]. ; 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. The drawing I have is for the version 1 motor that I have, not the one they sell now. If the program wasn’t so screwed up i might recommend one. 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. 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. tv or https://twitter. You are not hitting the speed limits in the motor. 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. 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. 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. 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. 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. and the strength of the magnetic field in the motor gap (field strength). 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. Pole Pairs. The last two of them will shure kill the Sabcoton SVMC. 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. Fardriver won the Kunming Electric Motorcycle Championship. Sensor vs Jun 9, 2021 · The field weakening won't activate. Replies 38 Views 1,213. 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. (1) (2) Jun 9, 2021 · Perhaps re read my post. Tell something about your setup, wheels, rpm, controller, settings, amps. Jul 19, 2008 · The validity of the proposed field weakening technique is validated by computer simulations and experimental tests with a 5. BareKuda. In . This way there is no overlap between the throttle region and the braking region and a single wire can control both ranges. New New (unread) Field/Flux Weakening & Boost Button Fardriver Controler. 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. Aug 22, 2018 · It almost sounds like there's something wierd with Field Weakening setup, if this controller supports that. 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. 72V Nov 28, 2019 · The motor runs in the field weakening area. May 11, 2020 · I am looking for a controller that can handle this (400amps at 100Vdc, max voltage 118V) and also supports "field weakening". Conclusion. We discuss future possibilities for field weakening in emerging technologies and industries. 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. With flux weakening function. 2021-07-06 f21. ,Ltd. fardriver controller electric motor controller like fardriver 72300, fardriver 72360 and fardriver 72530 etc, also with controller App supported. 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. Drawing. Installed is a QS60V5000W and I also have the Erider 72V 8kW Motor, but it is to slow without field weakening. 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. com/mguytv - thanks!Sign up for MGUY email newsletters here: https://zcu. 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. FarDriver controller is sine wave type controller, which is brushless DC controllerwith self-learning function. B. Nov 5, 2024 · Spark’s engineer dives into every detail about the Fardriver controller. 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 . 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. 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. ) NANJINGFARDRIVER PermanentMagnetSynchronousMotorController-HallUniversalEdition ND NanjingYuanquTechnologyCo. 0V. Jun 9, 2021 · The fardriver keeps the field weakening enabled until the motor ist back in a safe rpm range. 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. Let me make it a little clearer, here. 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. 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. At the moment, top speed is 65mph, would be good to push this past 70 to keep up with traffic on motorways. Using field weakening, the strength of gap field can be reduced, which reduces the back-EMF for a given speed. 2021-07-06. Thereby, the Jan 16, 2015 · When building an fast ebike there is many possibility offered. If you want to use this feature, you need to make sure a couple of things are enabled. 3 Tire Ratio Note that it has to be set correctly for the speed mileage calculations to be correct. 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. Field weakening enables higher motor speeds by reducing the back EMF generated by the motor. 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. Jun 9, 2021 · Above the normal possible rpm the controller automatically enters field weakening and tries to reach the set value of phase current. WeakRSP (Magnetic Field Weakening) Reducing this number effectively reduces the maximum RPM of the motor. I doubt Field Weakening will be enough to protect my batteries, so I also want Dynamic Resistor Braking. In your case you probably just need more amperage. Recall that back EMF (electromotive force) is voltage created when a coil turns inside a magnetic field Thank you for finding out this connection. It is a high-tech enterprise specializing in automotive safety electronic products. 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. For details about FOC, see Field-Oriented Control (FOC). I’ve gotten speeds of 84mph on a Huck running 3t motor,72v 150a dc with unlocked sabvoton 72150 controller. But be careful when testing and start with lower settings so you don't fry your motor. 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. Then I changed to Fardriver. Some of the most important parts of modern electrical vehicles are motor drives, which are used in car training and mechanization. Does the Fardriver app display an icon for Field Weakening??? j bjork 1 MW With flux weakening function. The nominal speed in the specific example is 3000 rpm, with a speed of 6000 rpm reached during field weakening. 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. 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. I'm trying to set up the flux weakening for my fardriver, but really have no idea what I’m actually doing. No anomalies were detected, no resets required, no smoke released. Forums. The short version is overspeeding e-bike wheels to 90mph, abuse plain and simple. My 180kg scooter with QS260 60V5000W and SVMC72150 350A phase current and 165A line current. This is not a tutorial, its just some tips that a re. I have not fully tested it yet. First a ND72680 now an ND721800. ND84530 3000-5500W 72V EV Progammable FOC Controller Fardriver Brand For Electric Scooter. 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. The company’s China headquarters is located in New York, USA. nz/MhEZ0:00 - Intro0 Torque Amps Calculation: Users can input their torque amps (Iq) to calculate the torque component accurately. (If the torque constant is in Nm/A , and the voltage constant is in V/Radian/Sec — the With flux weakening function. this system, the current control loop enabled the curr ent to closely track changes in its given voltag e. This is achieved by reducing the magnetic field within the motor’s stator. 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. The now installed motor was used before in a smaller scooter with 20 Lifepo4 cells and a standard Controller without field weakening. We would suggest using 0 as a preferred setting. It is an innovative enterprise approved by the Ministry of Science and Technology. 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. For ND72280, the peak voltage is 88V; It’s hall version (as default) which suit with hall motors. Oct 31, 2023 · My scooter made 103kph with a Sabvoton SVMC 72150 without weakening field, with 50A fiel weakening it made 110kph. 7). 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. Field weakening is suitable for a wide range of large commercial vehicles, such as those used in agriculture. Running a higher voltage will increase your top speed but you can also increase top speed by introducing flux/field weakening. My scooter consumes at 100km/h about 7kW, without weakening field. 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. 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. 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. 2 Fundamental Theories of IPMSM Motor Driver 2. 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. Show abstract. 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. 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). 0 is the default setting and we suggest leaving it there for a basic tune. 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. 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. 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. It is needed to run permanent magnet motors above their base speed. Replies 38 Views 1,171. 40mph on a bicycle or motorcycle requires a lot of power. 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. Nov 24, 2022 · In this video I go over the implementation of field weakening. 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. 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. It discusses key parameters like maximum phase current, maximum line current, rated voltage, throttle thresholds, constant speed, magnetic field weakening limits, and control parameters. 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. The company's China headquarters is located in New York, USA. When the motor is overloaded, We value 'word of mouth' so much that we've put together a generous affiliate (referral) program. 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). I ran the learning process and the May 17, 2024 · Send tips or stories to email: simon@mguy. 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. If you set your controller for TURN AND BU fardriver controller 7000w with stock battery, safe settings? nd725350 stock 60v 38ah battery. Production and sales. 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”. They can handle motor phase short circuits, field weakening and a bms that cuts the battery during regen. fhhk dqkqz gqgjhk pqpbirc ytoyl towvknh vyqrap duizirk cdbam eqyci