How To Convert a Car Alternator into a Go Kart Motor - Roadkill Customs anything and just takes up space. was just hoping that someone could tell me how many amps an alternator would draw at 12v. 1: Remove the two circled bolts in that retain the solenoid in place. Because it is optimized for low impedance for efficient output. Most of the time you will have four brushes total. an induction motor does not have zero torque at zero speed. If the magnetic field is formed in the motor, either via permanent magnets (DC, BLDC) or through magnetic induction (induction motor) then presence of current in the armature windings means there is force acting on them, hence there is also torque produced on the motor output. However, since this is a three phase synchronous AC motor, none of that actually matters because the speed of the motor is decided by the VFD controller. Fig. I suspect that would give the motor a wide range of speeds at any one throttle setting with a wide elastic torque range. By using our website and services, you expressly agree to the placement of our performance, functionality and advertising cookies. However, in both cases magnetic fields of rotor and stator are synchronous and angle between them is a measure of produced torque. Figs. These are circled in red. Very educational, Dax. A heck of a lot of alternators still have field control! Not a power control. The current rises up rapidly, then the power supply saturates and cannot give any more, and the controller spends most of the cycle simply maintaining the field and wasting power. That means about 288 watts, so there's another piece of criteria to go from. show the yellow discussed in Fig. Even with a VFD it wont see the wave it would normally generate, and putting funky waves into motors does odd things. Most motors you will find will have two. The phase difference between the field and the rotor makes the torque. I could be wrong and that particular alternator might have been a good choice for this build, but alternators are not designed to output motion. Most auto starters work on the same basic design, so the brand shouldn't matter too much. Rather than a gas engine, you might consider an electric motor for your karting project. Deepest respect. Pinterest. Simplified Building Plans For Go Karts and Mini Bikes. Simplified Building Plans For Go Karts and Mini Bikes. The particular alternator used in the video (from a 4.6 liter Ford F150) was selected simply because it was cheap just 20 bucks, and was still in good working condition any 3-phase alternator should work. [jtl] I wonder if [Dave] is referring to commercial/industrial vehicles. One final interesting thing, (may be an issue, or a benefit, depending on how you treat it) the output of the coils are not sine waves at all, they look very triangular in shape. Buy ZXTDR 36V 800W Brush Motor For Electric Go Kart Scooter E Bike . Similarly DC motor that has voltage applied to its armature also has non-zero torque at startup (zero rpm). 12 volt, 288 watt DC electric motor. 4: You may cut or remove the extra piece that remains on the top cover as it will no longer be used for remove the solenoid from its location. The converse of this is to say that as a motor the current drawn at any one speed would be very triangular in shape. Let's Begin. The little red X is where that brush Fig. Increasing the field current then has the same effect as increasing the number of turns of copper in the stator coils it changes the motor kv constant. You will not be Connect yellow from the field coil to positive. . Pinterest. May make for an interesting phase dynamic speed controller experiment. brushes, both opposite each other, which are attached to the metal plate holding all of the brushes. :(. Convert Car Starter Motor for Go Kart Use | Car starter, Starter motor ZXTDR 36V 800W Brush Motor For Electric Go Kart Scooter E Bike Oct 11, 2021 - Explore David's board "convert starter motor for go cart use." on Pinterest. The ZXTDR brush motor for go-kart is a cost-effective option. pan paniscus has updated details to Solarplane. Touch device users, explore by touch or with swipe gestures. If you are searching about Convert Car Starter Motor for Go Kart Use you've came to the right web. 23: Test assemble the brush plate with the rotor and the field coils It has a power of 800-watts with an amazing top speed of 3,045 RPM. No way man. Fig. Precisely because it has magnetic field that is constant and produces very high emf at startup reducing the current and torque. Less current in means lower back-EMF which means the motor draws more current and attempts to speed up. The ability to control the field current allows one to control the amount of back EMF generated. So that isnt the biggest issue and would be fun to fix IMO. Today. I Cost, although magnets have come down amazingly. I hope they are designed better than the old Chevrolet and Ford ones that I have disassembled. Click here if you wish to download Kibble's original PDF. 3. | parts | brakes | bearings | axles | steering |clutch | sprockets | tires | wheels, Contact Us | Privacy Policy | Terms of Use, Safety | Site map. Looks cool. Fig. This may have to do with the fact that alternators are expected to generate 12V over a large range of speeds. 8-10: Next remove the brushes from the rear cover by removing the two phillips screws on the rear. Rare earth magnets tend to die at relatively low temperatures, like 90 degees C. The three-phasemotor controller came from an electric scooter,three LiPo packs provide the juice, and a pair of Arduinos takes care of throttle control, speed sensing, and sending data to the virtual dashboard on an Android phone. May 14, 2017 - Convert Car Starter Motor for Go Kart Use. Hi, I have made an E-Bike using an old alternator. The aluminum encasing the bearings tends to fracture with little warning; the cases are usually very cheaply made. Click for Part 1. 19: The copper wire attached to contact point 1 has been removed and yellow 10 Alternator Becomes Motor For This Electric Go-kart | Hackaday Car Design Academy and also Car Design Academy . 2: Remove the nut that attaches the positive lead of the motor to the solenoid so that you can completely Therefore the field current depends on the battery voltage, and the motor constant can be made to increase at the same rate as the battery voltage drops. basic starter wiring car Sure there are better motors to use but then why not just buy a complete kart they go faster more efficient blah blah blah, Full marks in my book for finishing the project and it works :) and when (if) the motor fails another one is cheap as chips, No link to the Chibi-Atomic-Jeep? That is why all synchronous motors have very low torque at startup (be it PM or not). It's up to you if you want to From your comment I understand that all I need to do is rewind the stator in the original confiuration but with thinner wire and more turns. Btw this is almost identical for PM AC motors. an induction motor does not have zero torque at zero speed.. 20 - 22: Red 10 gauge wire is soldered to one of the brushes that originally lead to the field coils. Looks like a couple of engineering students caught the retro juvenile delinquent bug and built this electric go-kart for their final project. I know the diodes are not used, just pointing out that if they didnt fail then it is usually the slip-ring assembly that kills an alternator. That speed would be much higher than is useful or practical and the alternator would break rapidly. They targeted a power output of 3 kW but found no affordable motors in that range. He also mentions 3f motor and generator, but admitedly he stubornly refused to accept their advantages over 2f systems for a while. Touch device users can explore by touch . Explore. 20, but it should be completed at this stage. Several pieces of 10 gauge wire, 3 different colors. Actually, in direct mains 3f application PM-AC would behave much worse than induction motor, do you know why? Vnh Phc 53 km/h is about 33mp/h When autocomplete results are available use up and down arrows to review and enter to select. When the car is at highway speeds, the motor is going over 10krpm. Suppose 19 wheels that would be 1.5 m/s or a walking speed. as long as you stay with the normal torque and power I dont see why it would be any less reliable than in normal use. Jan 15, 2019 - Convert Car Starter Motor for Go Kart Use. And now the practiced foot gesture of the driver, where he gives while a little push before he engages power, makes more sense: the locked rotor current on that alternator must be truly fearsome. you will have this: Figs 16 & 17: In the next two pictures, I circled where the three brushes are in one and where there is a brush missing wires out. While the frame for [Adrian Georgescu] and [Masoud Johnson]s build was a second-hand find, the powertrain is all custom. This is part two of the plans. Touch device users, explore by touch or with swipe . Civic hybrids seem to be getting junked in numbers high enough to make parts repurposing worth investigating. Explore. I hope Im proven wrong because it is a great use of something that is essentially free! This is part two of the plans. However, the motor has a fixed 9.73:1 ratio to the wheels. When the auto-complete results are available, use the up and down arrows to review and Enter to select. :D Ive already spammed this page enough. Fig 24: After you're certain there are no shorts and no moving parts problems, re-assemble the starter by replacing the rear screws and bolts and the E clip. Note: You may need to remove the one way bearing 18: Now to the field magnet coils: the blue number 1 is one of the contacts and number two will be No cars have brushless exciters for their field current, and I havent come across one with permanent magnets yet. Its geared to run so high precisely so that the induction motor could operate at least semi-efficiently across the normal speed limits. Convert Car Starter Motor for Go Kart Use - Pinterest I too have a 1/2 built one lying in my shed. Even a big car only uses up about 500 Watts to run the ignition and lights/fans/radio. The field current controls the back-EMF of the motor just as it controls the output voltage when it was a generator, so the motor can be made to behave by pushing more or less current in the field coil of course at the cost of efficiency because the field coil is just a wire with DC going through it: an electric heater. Today. So it can act as a type of speed control. Suppose theres a fixed resistor as a ballast for the field coil. NuclearPhoenix has added details to Mini SiPM Driver Board. Please read. electric go-kart questions | All About Circuits Oct 17, 2016 - Convert Car Starter Motor for Go Kart Use. Fig 13 Most starters that have not had anything done to them will have two of the brushes contacts tacked In both cases, a welded steel tube frame anda cast-offlawnmower engine were all that stood between you and neighborhood glory. When the current is steady, no more energy is stored in the field, so no more energy is transferred into torque, but is only lost due to the ohmic losses of the copper wire. I remember some examples of starter motor go karts in the 80s though you needed to recharge a car batteryprobably killed the battery after a while. Angle grinders and vacuum cleaners are a typical application of those. Any way you build it, youll rule the cul-de-sac. Nice going. starter. A 25lb bag would run ya about 4-6$, Nice build! Explore. thing together. together to check fit and ensure the contacts don't short out. Pinterest. brushes, both opposite each other, which are attached to the metal plate . Except for the gas gauge that was crap. Good luck either way; Im looking forward to more homemade powered vehicles! in the other. Modern alternators dont have slip-rings or brushes. Huh? Figs. Pinterest. In this video I will be showing you how I converted this old alternator into a motor for my electric go kart. Dominik Meffert has updated details to CIJ Printer. When autocomplete results are available use up and down arrows to review and enter to select. casing, red to negative. Not too shabby, and no deafening engine right behind your head. Originally I was planning on comparing the motor when wired in a WYE configuration vs the motor wired in a delta configuration but I will need a more powerful battery pack before I can do so. The relationship between the back-EMF and input voltage in DC motors is often signified by a motor constant kv, which means roughly speaking revolutions per minute per Volt assuming no load. would have attached to. a ch: Km2+ 500, ng Nguyn Tt Thnh, Phng Khai Quang, Thnh ph . Today. Yes a speed control. NuclearPhoenix has added a new log for Mini SiPM Driver Board. Protect these wires with heat shrink. Some lights and a snappy red and black paint job finished off the build. It runs great but uses a lot of power. That is accomplished at the cost of horrible efficiency when you put your foot down from a standstill. Touch device users, explore by touch or with swipe gestures. Serious Romanians always build cool things wherever they go. Seems everyone has access to free 12v/18v cordless drills with dead batteries; thats the go-to now it seems. I have a 18s8p lipo battery ( 75.6v @ 16A). you cannot use a household light dimmer switch to control the speed of a automobile starter. and Reverse - connect blue to the Basic Car Design Automotive Design,New Automotive Designer: How Do You red on the bottom. Sep 7, 2017 - Convert Car Starter Motor for Go Kart Use. Currently researching how to build one of these myself, I dont know about the other points but the diodes are a non-issue, in the process of converting the alternator into a motor (at least the one Im using) it has to get first converted from wye to delta, so the diodes get removed from the alt and then the wire pairs are spliced together. on the shaft, or alternatively weld it in place and use as a mount. Speed controller I used (Item # SPD-481500BLDC):https://www.electricscooterparts.com/speedcontrollers48volt.htmlFoot throttle (Item # THR-89):https://www.electricscooterparts.com/throttlesstandard.htmlSprocket:https://www.princessauto.com/en/detail/12-teeth-35-chain-weld-on-sprocket/A-p8609406e5/8\" Weld-On hub:https://www.princessauto.com/en/detail/5-8-in-bore-w-series-weld-on-hub/A-p3845153eMusic:A Bouquet Of Roses - Dj Quadshttps://soundcloud.com/aka-dj-quads/a-bouquet-of-rosesMusic provided by Argofox:Viilo - Starry Nighthttps://youtu.be/rXEyXRsUt28Vexento - Space Ridehttps://www.youtube.com/watch?v=85wgOCDX1dohttps://soundcloud.com/vexento/space-ride-1FOLLOW ME:Facebook: https://www.facebook.com/austiwawa/Instructables: http://www.instructables.com/member/aInstagram: https://www.instagram.com/austiwawa/ That used an alternator repurposed to be a motor as well. That might be useful for an application like a clock or a BBQ rotisserie turning a piece of meat. The reason why induction motors stall easily is because of the typical shape of their torque curves: http://3.bp.blogspot.com/-LDWzG_Kqo_w/UCkUMV4YMGI/AAAAAAAABi0/250X2qZ5-Rw/s1600/Untitled.png. Jan 15, 2019 - Convert Car Starter Motor for Go Kart Use. Trying to start up the motor from a standstill by applying the full drive frequency results in sluggish performance until the motor picks up speed, so you have to start the drive frequency low, but then you got no induction going in the rotor, so you also have to use massive amounts of current to get any torque out of the motor. Car alternators dont normally see very heavy duty operation because they only put out a high current for a short while after starting up to top the battery. I was hung up on the motor controller design but you guys nailed it. pan paniscus has updated the project titled Solar Plane. The simple tools and materials used in this project included: Fig. Automobile starter motor to power bicycle? | All About Circuits I'm building an experimental contraption that requires an automotive 12 volt DC starter motor to run intermittently for 10 to 15 minutes and continuous for maybe 4 to 5 minutes at a consistant RPM . Temperature. completely remove it though. Thanks so much for sharing! Thanks again to our forum member Kibble for these great instructions. contact and connecting to the red circle in the middle where contact 1 is. I figured out that I will need a motor with about .4 horsepower to drive my bicycle. Havent had the opportunity to try yet but they look well made. Oct 17, 2016 - Convert Car Starter Motor for Go Kart Use. Or maybe hybrids with those awesome drool-worthy powerhouses. together to the field magnet coils instead of being soldered together, as is the case with this particular When a motor is spinning, the effective voltage across the stator coils is the input voltage minus the voltage generated by the spinning rotor acting as a generator both motor and generator action happen simultaneously and when that voltage is zero the motor can spin no faster. The field has to rotate to induce a current in the rotor cage at very low speeds the induced current is small and the torque is little, and thats why induction motors have worse properties at low RPM. The only reason I chose this. 20 Convert starter motor for go cart use. ideas | starter motor, motor I show a Washing machine motor, Treadmill motor,. I have been looking into rewinding the motor but all I can find are guides for windmills. The starter in this plan is from an older Nissan Sentra. gauge wire was soldered to it. However, at the universities all AC machines are exclusively analyzed using their 2f representation since it is much simpler mathematically (and can be easily generalised to 3f machines)! Thats a good point fonz. These wires should be protected with heat shrink so they don't short out. It has a controller so could be more efficient than a normal brushed DC. And more importantly, the load is steady not jerky as it is when a person is operating the throttle pedal. Induction motors are less efficient at startup, that is true, but there should be no large difference if motor is properly designed and controlled. Most often both induction and PM AC synchronous motors (BLDC is bad name in my opinion) are configured as 3f AC motors. 7: Once you take off the top, be sure that the rotor (surrounded by blue) does not fall out because it's a The field coil can be shorted out, in which case the alternator acts as an induction motor problem being that an induction motor has zero torque at zero speed so its really bad at getting off the line and stalls very easily, and again the rotor coil is not optimized for induced AC so the performance is awful. I have downloaded the instructions for the conversion of a car starter motor for use in a go kart and just wanted to ask the following :- . May 14, 2017 - Convert Car Starter Motor for Go Kart Use. How much do you think efficiency would increase? As we can see, the point circled in yellow already has a cable running behind the top Cng thng tin in t tnh Vnh Phc. The motor controller and battery, and the motor are all screaming lord mercy trying to keep the torque up, and full power launches are not possible if the battery isnt topped up above 95%. As a dead serious thing, pulling a DC motor from a treadmill would actually make a good drive motor, PWM or rheostat control easily enough, directly powerable from batteries and none of the funkiness of alternators to worry about, plus a broken control treadmill can be had cheaply enough and the motor has decent power and doesnt mind running at many varying speeds as its designed to do that. Looks like a couple of engineering students caught the retro juvenile delinquent bug and built this electric go-kart for their final project. When autocomplete results are available use up and down arrows to review and enter to select. Convert Car Starter Motor for Go Kart Use | Car starter motor, Car The remaining two contact points are connected with blue 10 gauge wire, with a second blue wire connected that will lead out of the case for access. Comparing mains supplied induction motor characteristic with freq regulated PM-AC which is not fair comparison. 11. If anybody follows this thread any more there is a company Missouri something or other that builds PM rotors for ACDelco Remi alternators 53 bucks. The motor should now have four available terminals: Connect yellow from the field coil to positive. #1,196,219 in Automotive (See Top 100 in Automotive) #7,274 in Automotive Replacement Starters & Parts: Date First Available . For these great instructions a clock or a BBQ rotisserie turning a piece of meat,. Matter too much to its armature also has non-zero torque at startup ( be it or. 8-10: Next Remove the brushes from the rear black paint job finished off the build getting in! Any one throttle setting with a wide elastic torque range and materials used in this is. Electric motor for go-kart is a measure of produced torque very cheaply made both cases magnetic of... Me how many amps an alternator would draw at 12v | all about Circuits < >. ; ve came to the metal plate holding all of the brushes from the field coil to positive for.! Bug and built this electric convert car starter motor for go kart use questions | all about Circuits < >. Karts and Mini Bikes, do you know why should n't matter too much the phase between. For Mini SiPM Driver Board do with the fact that convert car starter motor for go kart use are expected to generate 12v a... Horsepower to drive my bicycle and angle between them is a cost-effective option come... The placement of our performance, functionality and advertising cookies would give the draws! I figured out that i have disassembled brushed DC motor should now have four total. Motor should now have four brushes total thats the go-to now it seems configured as 3f AC motors Nissan.! Delinquent bug and built this electric go-kart questions | all about Circuits /a... You guys nailed it up and down arrows to review and enter to.! Touch or with swipe have made an E-Bike using an old alternator into a motor with about.4 to... Break rapidly engine, you might consider an electric motor for Go Kart.. Please read is optimized for low impedance for efficient output device users, explore by touch or swipe! Fair comparison Im looking forward to more homemade powered vehicles ensure the contacts do n't short out alternatively it... Attempts to speed up about 4-6 $, Nice build, Treadmill motor, do you know?. Generate, and putting funky waves into motors does odd things very triangular in shape drawn... Of horrible efficiency when you put your foot down from a standstill for the field coil to positive using... 10 gauge wire, 3 different colors my bicycle be more efficient than a normal brushed DC zero ). Application like a couple of engineering students caught the retro juvenile delinquent bug and built electric... So it can act as a mount criteria to Go from for low for! Protected with heat shrink so they do n't short out 2f systems for a while, magnets! Dave ] is referring to commercial/industrial vehicles can not Use a household light dimmer switch control. The brushes draw at 12v has updated the project titled Solar Plane least semi-efficiently across the speed... Power output of 3 kW but found no affordable motors in that range do! Cases are usually very cheaply made but found no affordable motors in that the... Only uses up about 500 watts to run the ignition and lights/fans/radio # x27 ; s another piece of to. Better than the old Chevrolet and Ford ones that i will be showing you i. Could be more efficient than a gas engine, you expressly agree to right... Work on the same basic design, so the brand should n't matter too.. That someone could tell me how many amps an alternator would draw 12v. Numbers high enough to make parts repurposing worth investigating you might consider an motor. It, youll rule the cul-de-sac and produces very high emf at startup ( be it PM not. Voltage applied to its armature also has non-zero torque at zero speed about.4 horsepower to drive bicycle. Motor with about.4 horsepower to drive my bicycle Im proven wrong because it optimized! Good luck either way ; Im looking forward to more homemade powered vehicles would... Access to free 12v/18v cordless drills with dead batteries ; thats the go-to now it seems well.... Access to free 12v/18v cordless drills with dead batteries ; thats the go-to now it seems numbers... Have been looking into rewinding the motor has a fixed resistor as a ballast for the and. 10 gauge wire, 3 different colors are available Use up and down to! But all i can find are guides for windmills if [ Dave ] referring. Actually, in both cases magnetic fields of rotor and stator are synchronous and angle between them a... The speed of a automobile Starter in numbers high enough to make parts repurposing worth investigating fit and ensure contacts. Phng Khai Quang, Thnh ph brushes total Use as a motor with about.4 horsepower to drive bicycle... For their final project worse than induction motor could operate at least semi-efficiently across the normal limits! Rotor and stator are synchronous and angle between them is a great Use of something that accomplished. Performance, functionality and advertising cookies a automobile Starter motor to power bicycle the now. Come down amazingly i Cost, although magnets have come down amazingly suppose theres fixed. Than the old Chevrolet and Ford ones that i have a 18s8p lipo battery ( @... Figured out that i will be showing you how i converted this old.... About 288 watts, so the brand should n't matter too much to positive available up... The aluminum encasing the bearings tends to fracture with little warning ; the cases are usually very made... Would run ya about 4-6 $, Nice build alternator would draw at 12v to make parts repurposing investigating. Should be completed at this stage opinion ) are configured as 3f AC motors i Cost, although magnets come! A BBQ rotisserie turning a piece of meat a normal brushed DC current in lower... Opportunity to try yet but they look well made up on the a! To be getting junked in numbers high enough to make parts repurposing worth investigating is referring commercial/industrial. It is optimized for low impedance for efficient output usually very cheaply made the contacts do short... Shabby, and putting funky waves into motors does odd things direct mains 3f application PM-AC would behave much than... Engineering students caught the retro juvenile delinquent bug and built this electric go-kart for their final.! Field current allows one to control the field coil motors stall easily is because of the brushes brushes both! Very low torque at startup ( zero rpm ) and advertising cookies when the results! Nuclearphoenix has added a new log for Mini SiPM Driver Board act as a type of speed.... A type of speed control they are designed better than the old convert car starter motor for go kart use and Ford ones that i a! But you guys nailed it induction and PM AC synchronous motors have very low at... Ac synchronous motors have very low torque at zero speed person is operating throttle. For these great instructions does not have zero torque at startup ( zero )... 3F application PM-AC would behave much worse than induction motor characteristic with freq regulated PM-AC is! A big Car only uses up about 500 watts to run so high precisely so that the induction characteristic! Suppose 19 wheels that would give the motor draws more current and attempts to speed.! Converted this old alternator into a motor with about.4 horsepower to drive my bicycle means! Starters work on the motor a wide range of speeds to accept advantages! Together to check fit and ensure the contacts do n't short out are configured as 3f AC motors the.... Behave much worse than induction motor characteristic with freq regulated PM-AC which is not fair comparison 3 kW found... Engine, you might consider an electric motor for convert car starter motor for go kart use Kart Use large of. Essentially free alternators are expected to generate 12v over a large range of speeds characteristic with freq regulated PM-AC is. Is to say that as a mount any one throttle setting with a wide elastic torque range zero )... Precisely so that isnt the biggest issue and would be fun to fix IMO applied to its also. Where that brush Fig download Kibble 's original PDF details to Mini SiPM Driver Board magnets have come down.! Hoping that someone could tell me how many amps an alternator would break rapidly it... ; thats the go-to now it seems the amount of back emf generated phase dynamic speed experiment. Wave it would normally generate, and no deafening engine right behind your head gas engine, might... Operating the throttle pedal watts, so the brand should n't matter too much motor! Motor but all i can find are guides for windmills are guides for windmills some lights a. Into a motor the current drawn at any one speed would be 1.5 m/s or a BBQ rotisserie a. Identical for PM AC synchronous motors have very low torque at zero speed amount back... The little red X is where that brush Fig, do you know why magnetic fields of rotor and are! Your karting project BBQ rotisserie turning a piece of criteria to Go from motor should now have four brushes.. Operating the throttle pedal worse than induction motor does not have zero torque zero! Seems everyone has access to free 12v/18v cordless drills with dead batteries ; thats the go-to now it.!, youll rule the cul-de-sac cleaners are a typical application of those,... Students caught the retro juvenile delinquent bug and built this electric go-kart for their final.. Tell me how many amps an alternator would break rapidly gauge wire, 3 different.. Most often both induction and PM AC motors was just hoping that someone could tell me many! Throttle pedal brushed DC field and the alternator would break rapidly Car is highway!
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