CN205417207U - Electric tricycle brushless DC motor energy repayment controller - Google Patents
Electric tricycle brushless DC motor energy repayment controller Download PDFInfo
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Abstract
The utility model discloses an electric tricycle brushless DC motor energy repayment controller, its key lies in: energy repayment controller includes step -down type switching power supply module, busbar voltage sampling module, bus current sampling module, looks current detection module and back electromotive force detection module, three -phase bridge drive module, rotor field position detection module, micro controller unit and temperature detection, speed governing signal, back a car signal and brake signal treatment circuit. The utility model discloses the basic function and the protect function that have the general control, energy repayment control function still has, the energy of retrieving comes from the kinetic energy of whole car, kinetic energy converts the electric energy into through motor permanent magnet rotor rotation of cutting stator coil during the braking, the controller uses the electric energy among the stator coil to carry out the control of energy feedback brake, can increase by about 15%~20% continuation of the journey mileage, braking moment can reach more than the 100N. M usually, the specially adapted opens and stops frequent city road conditions and mountain area.
Description
Technical field
This utility model belongs to controller for electric vehicle, is specifically related to a kind of pure electro-tricycle brushless direct current motor controller.
Background technology
The current widely used three-phase brushless dc motor of pure electro-tricycle, the most relatively conventional is the differential speed motor of band reduction box, battery general choice plumbic acid storage battery.
Electro-tricycle the most often loads substantial amounts of goods, power consumption is big, due to current battery finite capacity, plus driving conditions can constantly accelerate brake unavoidably, therefore the course continuation mileage of car load will not be too many, owing to self load-carrying is bigger, ride at level road and downhill running has bigger kinetic energy, when brake, can waste if these kinetic energy do not recycle, the most also can wear and tear mechanical brake, and additionally downhill running excessive velocities can produce higher counter electromotive force, its degree that can reach to damage car load electrical part.Energy feedback controller is namely based on the novel electric tricycle controller promoting course continuation mileage, strengthen the safety coefficient of brakes and preventing downhill running too fast damage car load electrical equipment these three main purpose and research and develop, and this controller has the driving function of Common Controller simultaneously.
Utility model content
The purpose of this utility model is to provide a kind of electro-tricycle brshless DC motor energy feedback controller.
To achieve these goals, by the following technical solutions, a kind of electro-tricycle brshless DC motor energy feedback controller, it is characterised in that: described energy feedback controller includes that adjusting and voltage-reduction switch power module, busbar voltage sampling module, bus current sampling module, phase current sensing module drive module, rotor field position detecting module, micro controller unit and temperature detection, speed-regulating signal, astern signal and brake signal to process circuit with counter electromotive force detection module, three-phase bridge.
Described busbar voltage sampling module is for the magnitude of voltage of Real-time Collection current power set of cells.
Described bus current sampling module is for the electricity consumption electric current of Real-time Collection current power set of cells；Described bus current sampling module includes the first current Hall sensor Uhall, the first electric capacity CIbus1, the second electric capacity CIbus2, the 3rd electric capacity CIbus3, the first resistance RIbus1, the second resistance RIbus2, the 3rd resistance RIbus3, the 4th resistance RIbus4, the 5th resistance RIbus5 and the first amplifier UIbus1A；Wherein, first pin of the first current Hall sensor Uhall is connected to power end VCC, and the 4th pin of the first current Hall sensor Uhall is connected to ground；One pin of the first electric capacity CIbus1 is connected to the 3rd pin of the first current Hall sensor Uhall, and another pin of the first electric capacity CIbus1 is connected to ground；One pin of the second electric capacity CIbus2 is connected to second pin of the first current Hall sensor Uhall, and another pin of the second electric capacity CIbus2 is connected to ground；One pin of the second resistance RIbus2 is connected to the 3rd pin of the first current Hall sensor Uhall, and another pin of the second resistance RIbus2 is connected to the 3rd pin of the first amplifier UIbus1A；One pin of the 3rd resistance RIbus3 is connected to second pin of the first current Hall sensor Uhall, and another pin of the 3rd resistance RIbus3 is connected to the second pin of the first amplifier UIbus1A；One pin of the first resistance RIbus1 is connected to another pin of power supply VCC, the first resistance RIbus1 and is connected to the 3rd pin of the first amplifier UIbus1A；One pin of the 4th resistance RIbus4 is connected to the second pin of the first amplifier UIbus1A, and another pin of the 4th resistance RIbus4 is connected to the first pin of the first amplifier UIbus1A；One pin of the 5th resistance RIbus5 is connected to the first pin of the first amplifier UIbus1A, another pin of a 5th resistance RIbus5 and pin of the second electric capacity CIbus2 is connected and common point is connected to an ADC pin of microcontroller, another pin of the second electric capacity CIbus2 is connected to ground；8th pin of the first amplifier UIbus1A is connected to power end VCC, and the 4th pin of the first amplifier UIbus1A is connected to ground.
Described phase current sensing module and counter electromotive force detection module are for detecting phase current and the phase voltage of three-phase brushless dc motor line；Described phase current sensing module is made up of U phase current processing module, V phase current processing module, the similar phase current processing module of W phase current processing module three；Described counter electromotive force detection module is made up of U counter electromotive force detection module, V counter electromotive force detection module, the similar back-emf voltage processing module of W counter electromotive force detection module three；Wherein, described U phase current processing module includes the first resistance Rphs1, the second resistance Rphs2, the 3rd resistance Rphs3, the 4th resistance Rphs4, the first electric capacity Cphs1, the first amplifier Uphs1A and the first diode Dphs1；One pin of the first resistance Rphs1 is connected to another pin of power end VCC, the first resistance Rphs1 and is connected to the 3rd pin of the first amplifier Uphs1A；One pin of the second resistance Rphs2 is connected in motor phase line U phase, and another pin of the second resistance Rphs2 is connected to the 3rd pin of the first amplifier Uphs1A；The anode of the first diode Dphs1 is connected to the 3rd pin of the first amplifier Uphs1A, and the negative electrode of the first diode Dphs1 is connected to the second pin of the first amplifier Uphs1A；One pin of the 3rd resistance Rphs3 is connected to ground, and another pin of the 3rd resistance Rphs3 is connected to the second pin of the first amplifier Uphs1A；One pin of the 4th resistance Rphs4 is connected to the second pin of the first amplifier Uphs1A, and another pin of the 4th resistance Rphs4 is connected to the first pin of the first amplifier Uphs1A；One pin of the first electric capacity Cphs1 is connected to the first pin of the first amplifier Uphs1A, and another pin of the first electric capacity Cphs1 is connected to ground；First pin of the first amplifier Uphs1A is also coupled to an ADC pin of microcontroller, and the 8th pin of the first amplifier Uphs1A is connected to VCC, and the 4th pin of the first amplifier Uphs1A is connected to ground；Described V phase current processing module is identical with the circuit structure of U phase current processing module with W phase current processing module；Described U phase back-emf detection module includes the first resistance Rphs5, the second resistance Rphs6, the first electric capacity Cphs2 and the first diode Dphs2；One pin of the first resistance Rphs5 is connected in motor phase line U phase, and another pin of the first resistance Rphs5 is connected to the anode of the first diode Dphs2；Second resistance Rphs6 and the first electric capacity Cphs2 is in parallel, and their points of common connection and the anode of the first diode Dphs2 are connected, and their another points of common connection is connected to ground；The negative electrode of the first diode Dphs2 is connected to VCC, and the anode of the first diode Dphs2 is also coupled to an ADC pin of microcontroller；Described V phase back-emf detection module is identical with the circuit structure of U phase back-emf detection module with W phase back-emf detection module.
Described three-phase bridge drives module for driving motor operation and the charging of energy feedback and synchronous rectification to control.
Described rotor field position detecting module is for detecting relative position and the information such as rotating speed, direction of current rotor magnetic direction.
Described micro controller unit for process various driving time input signal and send the control signal to motor and car load.
Described temperature detection, speed-regulating signal, astern signal and brake signal process circuit and are respectively used to the signal that the temperature information of sampling controller, speed governing information, reversing mode, brake mode etc. four kinds participate in controlling.
This utility model has the basic function of electro-tricycle brshless DC motor general control (such as: speed governing, brake, reversing, three speed, runaway etc. and defencive function (current limliting, under-voltage protection, overvoltage protection, short-circuit protection, overtemperature protection etc.), simultaneously, also there is energy feedback and control function, the energy reclaimed comes from the kinetic energy of car load, during braking, kinetic energy is converted to electric energy through motor permanent magnetic rotor circumgyration incision stator coil, controller uses the electric energy in stator coil to carry out energy feeding braking control, can increase by the course continuation mileage of about 15% ~ 20%, braking moment generally reaches more than 100N.m, it is particularly well-suited to start and stop urban traffic situation frequently and mountain area.This utility model has the following characteristics that increase course continuation mileage, and the power of car load can be converted to electric energy and be stored in battery by the controller that (such as touches on the brake) when meeting feedback condition, reaches energy-saving effect；During brake very steadily, feedback uses the closed loop control of Indirect Torque closed loop, and in moderating process, brake force pulsation is little, and size is automatically adjusted according to signals such as rotating speeds very much, makes feedback effect and feels to reach optimum state with riding；Extend battery life, have bigger pulse current during each energy feedback and battery is charged, it is possible to eliminate the polarization phenomena on electricity, extend the service life of battery to a certain extent；Additionally, advantageously reduce the abrasion of mechanical brake, when gently touching on the brake also can trigger energy feedback, the braking moment that output is bigger simultaneously, car load can be made to drop to low speed within a short period of time；It is also prevented from descending to make to slide and too fast produced higher counter electromotive force infringement car load electrical appliance and battery.
Accompanying drawing explanation
Fig. 1 is the structure chart of this utility model embodiment；
Fig. 2 is the circuit structure diagram of this utility model embodiment median generatrix current sample module；
Fig. 3 is the circuit structure diagram of U phase current processing module in this utility model embodiment；
Fig. 4 is the circuit structure diagram of U counter electromotive force detection module in this utility model embodiment；
Fig. 5 is the control principle drawing of this utility model embodiment；
Fig. 6 is experimental result.
Detailed description of the invention
With specific embodiment, this utility model is described further below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of electro-tricycle brshless DC motor energy feedback controller, including including that adjusting and voltage-reduction switch power module, busbar voltage sampling module, bus current sampling module, phase current sensing module drive module, rotor field position detecting module, micro controller unit and temperature detection, speed-regulating signal, astern signal and brake signal to process circuit with counter electromotive force detection module, three-phase bridge.
Described busbar voltage sampling module is for the magnitude of voltage of Real-time Collection current power set of cells.
Described bus current sampling module is for the electricity consumption electric current of Real-time Collection current power set of cells.
As in figure 2 it is shown, described bus current sampling module includes the first current Hall sensor Uhall, the first electric capacity CIbus1, the second electric capacity CIbus2, the 3rd electric capacity CIbus3, the first resistance RIbus1, the second resistance RIbus2, the 3rd resistance RIbus3, the 4th resistance RIbus4, the 5th resistance RIbus5 and the first amplifier UIbus1A；Wherein, first pin of the first current Hall sensor Uhall is connected to power end VCC, and the 4th pin of the first current Hall sensor Uhall is connected to ground；One pin of the first electric capacity CIbus1 is connected to the 3rd pin of the first current Hall sensor Uhall, and another pin of the first electric capacity CIbus1 is connected to ground；One pin of the second electric capacity CIbus2 is connected to second pin of the first current Hall sensor Uhall, and another pin of the second electric capacity CIbus2 is connected to ground；One pin of the second resistance RIbus2 is connected to the 3rd pin of the first current Hall sensor Uhall, and another pin of the second resistance RIbus2 is connected to the 3rd pin of the first amplifier UIbus1A；One pin of the 3rd resistance RIbus3 is connected to second pin of the first current Hall sensor Uhall, and another pin of the 3rd resistance RIbus3 is connected to the second pin of the first amplifier UIbus1A；One pin of the first resistance RIbus1 is connected to another pin of power supply VCC, the first resistance RIbus1 and is connected to the 3rd pin of the first amplifier UIbus1A；One pin of the 4th resistance RIbus4 is connected to the second pin of the first amplifier UIbus1A, and another pin of the 4th resistance RIbus4 is connected to the first pin of the first amplifier UIbus1A；One pin of the 5th resistance RIbus5 is connected to the first pin of the first amplifier UIbus1A, another pin of a 5th resistance RIbus5 and pin of the second electric capacity CIbus2 is connected and common point is connected to an ADC pin of microcontroller, another pin of the second electric capacity CIbus2 is connected to ground；8th pin of the first amplifier UIbus1A is connected to power end VCC, and the 4th pin of the first amplifier UIbus1A is connected to ground.
Described phase current sensing module and counter electromotive force detection module are for detecting phase current and the phase voltage of three-phase brushless dc motor line.
As it is shown on figure 3, described phase current sensing module is made up of U phase current processing module, V phase current processing module, the similar phase current processing module of W phase current processing module three；Described counter electromotive force detection module is made up of U counter electromotive force detection module, V counter electromotive force detection module, the similar back-emf voltage processing module of W counter electromotive force detection module three；Wherein, described U phase current processing module includes the first resistance Rphs1, the second resistance Rphs2, the 3rd resistance Rphs3, the 4th resistance Rphs4, the first electric capacity Cphs1, the first amplifier Uphs1A and the first diode Dphs1；One pin of the first resistance Rphs1 is connected to another pin of power end VCC, the first resistance Rphs1 and is connected to the 3rd pin of the first amplifier Uphs1A；One pin of the second resistance Rphs2 is connected in motor phase line U phase, and another pin of the second resistance Rphs2 is connected to the 3rd pin of the first amplifier Uphs1A；The anode of the first diode Dphs1 is connected to the 3rd pin of the first amplifier Uphs1A, and the negative electrode of the first diode Dphs1 is connected to the second pin of the first amplifier Uphs1A；One pin of the 3rd resistance Rphs3 is connected to ground, and another pin of the 3rd resistance Rphs3 is connected to the second pin of the first amplifier Uphs1A；One pin of the 4th resistance Rphs4 is connected to the second pin of the first amplifier Uphs1A, and another pin of the 4th resistance Rphs4 is connected to the first pin of the first amplifier Uphs1A；One pin of the first electric capacity Cphs1 is connected to the first pin of the first amplifier Uphs1A, and another pin of the first electric capacity Cphs1 is connected to ground；First pin of the first amplifier Uphs1A is also coupled to an ADC pin of microcontroller, and the 8th pin of the first amplifier Uphs1A is connected to VCC, and the 4th pin of the first amplifier Uphs1A is connected to ground；Described V phase current processing module is identical with the circuit structure of U phase current processing module with W phase current processing module；Described U phase back-emf detection module includes the first resistance Rphs5, the second resistance Rphs6, the first electric capacity Cphs2 and the first diode Dphs2；One pin of the first resistance Rphs5 is connected in motor phase line U phase, and another pin of the first resistance Rphs5 is connected to the anode of the first diode Dphs2；Second resistance Rphs6 and the first electric capacity Cphs2 is in parallel, and their points of common connection and the anode of the first diode Dphs2 are connected, and their another points of common connection is connected to ground；The negative electrode of the first diode Dphs2 is connected to VCC, and the anode of the first diode Dphs2 is also coupled to an ADC pin of microcontroller；Described V phase back-emf detection module is identical with the circuit structure of U phase back-emf detection module with W phase back-emf detection module.
Described three-phase bridge drives module for driving motor operation and the charging of energy feedback and synchronous rectification to control.
Described rotor field position detecting module is for detecting relative position and the information such as rotating speed, direction of current rotor magnetic direction.
Described micro controller unit for process various driving time input signal and send the control signal to motor and car load.
Described temperature detection, speed-regulating signal, astern signal and brake signal process circuit and are respectively used to the signal that the temperature information of sampling controller, speed governing information, reversing mode, brake mode etc. four kinds participate in controlling.
This utility model is in addition to the power drive function with conventional control device of electronic pedicab, which is mainly characterized in that energy feedback controls function.
In use, electric energy can be converted kinetic energy into when electric vehicle brake is braked and store in battery, promote course continuation mileage.Bigger charging current can be produced during braking every time, the polarization phenomena of lead-acid battery can be eliminated under the effect of pulse current, extend the service life of battery to a certain extent.User only need to gently touch on the brake after touching electrical switch just can start energy feedback function, and energy feedback can produce bigger braking moment makes car quickly reduce to low speed, so can reduce the degree of wear of mechanical brake, enhance the safety coefficient of brakes simultaneously.This feedback controller can control the size of braking moment according to rotary speed information, rotor field angle, back-emf voltage value and the phase current values of feedback, reach steady and quick braking effect when brake, wherein use special synchronous rectification to make the organic efficiency of kinetic energy improve further.This feedback controller intelligence can add up battery via controller institute power consumption, estimated the dump energy of battery by tailor-made algorithm in conjunction with the magnitude of voltage measuring battery, in long downhill running charging process, battery has fully charged situation, energy feedback control algolithm with produce reverse power function make to slide time produce counter electromotive force will not overvoltage, so ensure that other electrical appliances of controller and car load and battery are without prejudice.
The control algolithm of involved energy feedback in this utility model introduced below:
As it is shown in figure 5, permanent magnet DC motor can produce induction electromotive force when rotating on stator coil, often it is called counter electromotive force；Current feedback control mode uses lower brachium pontis copped wave boosting mode, and the control of braking moment is realized indirectly by PID internal ring regulation phase current；The dynamically regulation of braking moment to obtain one group of parameter relevant to rotating speed, cell voltage and counter electromotive force based on road examination experiment, for the purpose of obtaining stable brake force, the most also wants the limit feedback voltage will not be too high；The output result of PID will be through maximum restricted function, and this function is relevant to rotating speed and feedback current, for limiting the electric current feeding back to battery less than the maximum allowed；In order to improve feedback efficiency, afterflow uses upper brachium pontis synchronous rectification mode, and the service time of upper brachium pontis is calculated by counter electromotive force, phase current and the parameter of electric machine (stator Ls/Rs, rotor flux).The signal that drives of three-phase bridge is allocated according to dutycycle and the current position, rotor field of upper and lower bridge arm.
Energy feedback controller road test result arrives target, and experiment conclusion is as follows:
Examination place, road: ramp, Chongqing；
Complete vehicle weight: 500kg；
Battery: 60V38Ah lead-acid accumulator.
1, the level road braking section of recovering energy:
Energy in this process is mainly derived from battery self, and conversion process of energy is as follows:
Battery power (being given controller by handle to perform) → mechanical energy (kinetic energy) → electric energy (touches on the brake and produces energy feedback when braking)；
Level road retaining segment conclusion (of pressure testing) see table:
2, the downhill running section of recovering energy:
Energy in this process is mainly derived from car load gravitional force on mountain top, and conversion process of energy is as follows:
Gravitional force (Ep=m × g × h) → mechanical energy (kinetic energy) → electric energy (recovering energy when touching on the brake)；
Fig. 6 is some experimental data result.
This utility model has the basic function of electro-tricycle brshless DC motor general control (such as: speed governing, brake, reversing, three speed, runaway etc. and defencive function (current limliting, under-voltage protection, overvoltage protection, short-circuit protection, overtemperature protection etc.), simultaneously, also there is energy feedback and control function, the energy reclaimed comes from the kinetic energy of car load, during braking, kinetic energy is converted to electric energy through motor permanent magnetic rotor circumgyration incision stator coil, controller uses the electric energy in stator coil to carry out energy feeding braking control, can increase by the course continuation mileage of about 15% ~ 20%, braking moment generally reaches more than 100N.m, it is particularly well-suited to start and stop urban traffic situation frequently and mountain area.This utility model has the following characteristics that increase course continuation mileage, and the power of car load can be converted to electric energy and be stored in battery by the controller that (such as touches on the brake) when meeting feedback condition, reaches energy-saving effect；During brake very steadily, feedback uses the closed loop control of Indirect Torque closed loop, and in moderating process, brake force pulsation is little, and size is automatically adjusted according to signals such as rotating speeds very much, makes feedback effect and feels to reach optimum state with riding；Extend battery life, have bigger pulse current during each energy feedback and battery is charged, it is possible to eliminate the polarization phenomena on electricity, extend the service life of battery to a certain extent；Additionally, advantageously reduce the abrasion of mechanical brake, when gently touching on the brake also can trigger energy feedback, the braking moment that output is bigger simultaneously, car load can be made to drop to low speed within a short period of time；It is also prevented from descending to make to slide and too fast produced higher counter electromotive force infringement car load electrical appliance and battery.
Claims (8)
1. an electro-tricycle brshless DC motor energy feedback controller, it is characterized in that: described energy feedback controller includes adjusting and voltage-reduction switch power module, busbar voltage sampling module, bus current sampling module, phase current sensing module and counter electromotive force detection module, three-phase bridge drives module, rotor field position detecting module, micro controller unit, and temperature detection, speed-regulating signal, astern signal and brake signal process circuit, wherein bus current sampling module, bus current sampling module, temperature detection, speed-regulating signal, astern signal and brake signal process circuit, phase current sensing module and counter electromotive force detection module, three-phase bridge drives module, rotor field position detecting module is all connected with micro controller unit by wire, adjusting and voltage-reduction switch power module is connected with busbar voltage sampling module by wire.
2. electro-tricycle brshless DC motor energy feedback controller as claimed in claim 1, it is characterised in that: described busbar voltage sampling module is for the magnitude of voltage of Real-time Collection current power set of cells.
3. electro-tricycle brshless DC motor energy feedback controller as claimed in claim 1, it is characterised in that: described bus current sampling module is for the electricity consumption electric current of Real-time Collection current power set of cells；Described bus current sampling module includes the first current Hall sensor Uhall, the first electric capacity CIbus1, the second electric capacity CIbus2, the 3rd electric capacity CIbus3, the first resistance RIbus1, the second resistance RIbus2, the 3rd resistance RIbus3, the 4th resistance RIbus4, the 5th resistance RIbus5 and the first amplifier UIbus1A；Wherein, first pin of the first current Hall sensor Uhall is connected to power end VCC, and the 4th pin of the first current Hall sensor Uhall is connected to ground；One pin of the first electric capacity CIbus1 is connected to the 3rd pin of the first current Hall sensor Uhall, and another pin of the first electric capacity CIbus1 is connected to ground；One pin of the second electric capacity CIbus2 is connected to second pin of the first current Hall sensor Uhall, and another pin of the second electric capacity CIbus2 is connected to ground；One pin of the second resistance RIbus2 is connected to the 3rd pin of the first current Hall sensor Uhall, and another pin of the second resistance RIbus2 is connected to the 3rd pin of the first amplifier UIbus1A；One pin of the 3rd resistance RIbus3 is connected to second pin of the first current Hall sensor Uhall, and another pin of the 3rd resistance RIbus3 is connected to the second pin of the first amplifier UIbus1A；One pin of the first resistance RIbus1 is connected to another pin of power supply VCC, the first resistance RIbus1 and is connected to the 3rd pin of the first amplifier UIbus1A；One pin of the 4th resistance RIbus4 is connected to the second pin of the first amplifier UIbus1A, and another pin of the 4th resistance RIbus4 is connected to the first pin of the first amplifier UIbus1A；One pin of the 5th resistance RIbus5 is connected to the first pin of the first amplifier UIbus1A, another pin of a 5th resistance RIbus5 and pin of the second electric capacity CIbus2 is connected and common point is connected to an ADC pin of microcontroller, another pin of the second electric capacity CIbus2 is connected to ground；8th pin of the first amplifier UIbus1A is connected to power end VCC, and the 4th pin of the first amplifier UIbus1A is connected to ground.
4. electro-tricycle brshless DC motor energy feedback controller as claimed in claim 1, it is characterised in that: described phase current sensing module and counter electromotive force detection module are for detecting phase current and the phase voltage of three-phase brushless dc motor line；Described phase current sensing module is made up of U phase current processing module, V phase current processing module, the similar phase current processing module of W phase current processing module three；Described counter electromotive force detection module is made up of U counter electromotive force detection module, V counter electromotive force detection module, the similar back-emf voltage processing module of W counter electromotive force detection module three；Wherein, described U phase current processing module includes the first resistance Rphs1, the second resistance Rphs2, the 3rd resistance Rphs3, the 4th resistance Rphs4, the first electric capacity Cphs1, the first amplifier Uphs1A and the first diode Dphs1；One pin of the first resistance Rphs1 is connected to another pin of power end VCC, the first resistance Rphs1 and is connected to the 3rd pin of the first amplifier Uphs1A；One pin of the second resistance Rphs2 is connected in motor phase line U phase, and another pin of the second resistance Rphs2 is connected to the 3rd pin of the first amplifier Uphs1A；The anode of the first diode Dphs1 is connected to the 3rd pin of the first amplifier Uphs1A, and the negative electrode of the first diode Dphs1 is connected to the second pin of the first amplifier Uphs1A；One pin of the 3rd resistance Rphs3 is connected to ground, and another pin of the 3rd resistance Rphs3 is connected to the second pin of the first amplifier Uphs1A；One pin of the 4th resistance Rphs4 is connected to the second pin of the first amplifier Uphs1A, and another pin of the 4th resistance Rphs4 is connected to the first pin of the first amplifier Uphs1A；One pin of the first electric capacity Cphs1 is connected to the first pin of the first amplifier Uphs1A, and another pin of the first electric capacity Cphs1 is connected to ground；First pin of the first amplifier Uphs1A is also coupled to an ADC pin of microcontroller, and the 8th pin of the first amplifier Uphs1A is connected to VCC, and the 4th pin of the first amplifier Uphs1A is connected to ground；Described V phase current processing module is identical with the circuit structure of U phase current processing module with W phase current processing module；Described U phase back-emf detection module includes the first resistance Rphs5, the second resistance Rphs6, the first electric capacity Cphs2 and the first diode Dphs2；One pin of the first resistance Rphs5 is connected in motor phase line U phase, and another pin of the first resistance Rphs5 is connected to the anode of the first diode Dphs2；Second resistance Rphs6 and the first electric capacity Cphs2 is in parallel, and their points of common connection and the anode of the first diode Dphs2 are connected, and their another points of common connection is connected to ground；The negative electrode of the first diode Dphs2 is connected to VCC, and the anode of the first diode Dphs2 is also coupled to an ADC pin of microcontroller；Described V phase back-emf detection module is identical with the circuit structure of U phase back-emf detection module with W phase back-emf detection module.
5. electro-tricycle brshless DC motor energy feedback controller as claimed in claim 1, it is characterised in that: described three-phase bridge drives module for driving motor operation and the charging of energy feedback and synchronous rectification to control.
6. electro-tricycle brshless DC motor energy feedback controller as claimed in claim 1, it is characterised in that: described rotor field position detecting module is for detecting relative position and rotating speed, the directional information of current rotor magnetic direction.
7. electro-tricycle brshless DC motor energy feedback controller as claimed in claim 1, it is characterised in that: input signal when described micro controller unit is for processing various driving and send the control signal to motor and car load.
8. electro-tricycle brshless DC motor energy feedback controller as claimed in claim 1, it is characterised in that: described temperature detection, speed-regulating signal, astern signal and brake signal process circuit and are respectively used to the temperature information of sampling controller, speed governing information, reversing mode, the signal of brake mode four kinds participation control.
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| CN201521043241.0U CN205417207U (en) | 2015-12-15 | 2015-12-15 | Electric tricycle brushless DC motor energy repayment controller |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107878206A (en) * | 2016-09-30 | 2018-04-06 | 无锡超钰微电子有限公司 | Braking energy source recycling module |
| CN113644844A (en) * | 2021-08-27 | 2021-11-12 | 江苏银河数字技术有限公司 | Motor back electromotive force high-voltage suppression method |
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2015
- 2015-12-15 CN CN201521043241.0U patent/CN205417207U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107878206A (en) * | 2016-09-30 | 2018-04-06 | 无锡超钰微电子有限公司 | Braking energy source recycling module |
| CN113644844A (en) * | 2021-08-27 | 2021-11-12 | 江苏银河数字技术有限公司 | Motor back electromotive force high-voltage suppression method |
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