CN205389181U - Motor plug braking control system for electric motor car - Google Patents
Motor plug braking control system for electric motor car Download PDFInfo
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- CN205389181U CN205389181U CN201520872762.0U CN201520872762U CN205389181U CN 205389181 U CN205389181 U CN 205389181U CN 201520872762 U CN201520872762 U CN 201520872762U CN 205389181 U CN205389181 U CN 205389181U
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Abstract
The utility model relates to a motor plug braking control system for electric motor car, its mainly by motor regenerative braking state recognition cell, braking mode interlocking unit, the rotor turns to recognition cell, electronics commutation unit and braking voltage and the power control unit is formed, motor regenerative braking state recognition cell one end electricity is connected braking mode interlocking unit, it mainly comprises speed detection circuit, throttle signal detection circuit, stator current detection circuit and fender bit switch signal detection circuit, braking mode interlocking unit one end electricity is connected the rotor turns to recognition cell, the rotor turns to recognition cell one end electricity and connects electron commutation unit, electron commutation unit one end electricity is connected braking voltage and power control unit. The utility model has advantages of simple and reasonable structure design, can satisfy three phase machine plug braking technique demand, adopt electron commutation mode completely, with low costs, the reliability is leaned on, has extremely strong using value.
Description
Technical field
This utility model relates to vehicle technology field, particularly relates to a kind of motor of electric motor car reversing braking and controls system.
Background technology
Three phase electric machine is after excision power supply, the rotor of motor just can stop after rotating a period of time always due to inertia, and in practical application, many times always want to motor can position accurately or stop with the fastest speed, now it is accomplished by motor is braked, the braking method of three phase electric machine substantially has two big classes: one is mechanical braking, and two is electrodynamic；
The effect of mechanical brake device is the braking method of rapid stall after motor is cut off the electricity supply, the such as electromagnetic brake such as electromagnetic brake, electromagnetic clutch, the extensive use under halted state at hoisting machinery or motor of this braking method, its advantage is to be accurately positioned, and when can prevent motor unexpected power-off, weight falls voluntarily and causes the accident.Its shortcoming is if the speed of electric machine rotation is significantly high, now adopts suddenly mechanical braking, it is easy to damage motor, and mechanical braking mode adopts the mode of friction to make motor stalls sometimes, it is easy to make arrestment mechanism produce bigger abrasion；
Electrodynamic is the method making motor stop rapidly to the electromagnetic torque that one, motor and actual steering are contrary while motor is cut off the electricity supply, and most common method is: regenerative braking, dynamic braking and reversing braking.
Reversing braking is the power phase changing motor stator winding motor cuts off normal operation power supply while, so as to have reversal trend and produce bigger braking moment and carry out braking motor, the essence of reversing braking is to make motor be intended to reversion and brake, reversing braking brake force is strong, braking is rapidly, but braking poor accuracy, in braking procedure, impulsive force is strong, it is easy to damage drive disk assembly.
Dynamic braking is to apply a DC source to any two-phase of stator winding while motor is cut off the electricity supply, and to produce stationary magnetic field, relies on the inertia of rotor to rotate the method that cutting stationary magnetic field produces braking moment.Steadily, accurately, energy expenditure is little, it is necessary to DC source, and brake force is relatively weak in dynamic braking braking.
Regenerative braking is after motor cuts off normal operation power supply, now has kinetic energy due to motor, and controller makes motor be operated in generating state, and the electric energy that motor sends can make motor driver charge the battery, by electric energy feedback to energy storage device.The advantage of regenerative braking is the kinetic energy of motor can be converted into electrical power storage to improve its utilization rate in energy storage device, has the drawback that the voltage of regenerative braking or electric current can exceed that the voltage and current thresholding of energy storage device, thus burning out energy storage device.
Summary of the invention
For problem above, it is simple, reasonable that this utility model provides a kind of structural design, it is possible to meets three phase electric machine reversing braking technical need, adopt electronics commutation mode completely, cost is low, and reliability is leaned on, and the motor of electric motor car reversing braking with extremely strong using value controls system.
This utility model is achieved through the following technical solutions:
Above-mentioned motor of electric motor car reversing braking controls system, is mainly turned to recognition unit, electronics commutation unit and brake voltage and frequency regulon to form by motor regenerative braking state recognition unit, braking mode interlocking unit, rotor；Described motor regenerative braking state recognition unit one end electrically connects described braking mode interlocking unit, and it is mainly made up of Rotating speed measring circuit, throttle signal testing circuit, stator current testing circuit and gear on-off signal deteching circuit；Described braking mode interlocking unit one end electrically connects described rotor and turns to recognition unit；Described rotor turns to recognition unit one end to electrically connect described electronics commutation unit；Described electronics commutation unit one end electrically connects described brake voltage and frequency regulon.
Described motor of electric motor car reversing braking controls system, wherein: described Rotating speed measring circuit is to be connected to form by resistance R1～R8, electric capacity C1～C6, common mode inhibition inductance T, voltage comparator Q1, photoelectrical coupler U1 and Schmidt trigger U2 by described Rotating speed measring circuit；Described resistance R1 one end connects+12V power supply, the other end connects described common mode inhibition one of them input of inductance T by described resistance R2, and the junction point of described resistance R1 and resistance R2 is also associated with terminal BM_B and is connected to the tacho-pulse outfan of orthogonal encoder of motor by described terminal BM_B；Described electric capacity C1 is parallel between two inputs of described common mode inhibition inductance T and one end also ground connection；Described electric capacity C2 is parallel between two outfans of described common mode inhibition inductance T and one end also ground connection；The power positive end of described voltage comparator Q1 connects+12V power supply, power cathode end ground connection, and in-phase input end connects described common mode inhibition one of them outfan of inductance T, and inverting input is connected described resistance R3 and connected the power supply of+6V by described resistance R3；Described resistance R4 one end ground connection, the other end connects the outfan of described voltage comparator Q1；The cathode terminal ground connection of described photoelectrical coupler U1, anode tap is connected to the outfan of described voltage comparator Q1 by described resistance R5, base stage connects+3.3V power supply, and grounded emitter, colelctor electrode is connected to the port A of described Schmidt trigger U2 by described resistance R7；Described resistance R6 one end connects+3.3V power supply, and the other end connects the colelctor electrode of described photoelectrical coupler U1；Described electric capacity C3 one end is connected to the colelctor electrode of described photoelectrical coupler U1 and the junction point of described resistance R6, R7, other end ground connection；Described electric capacity C4 one end ground connection, the other end is connected to the junction point of base stage and the+3.3V power supply of described resistance R6, photoelectrical coupler U1；Described Schmidt trigger U2 passes through terminal GND ground connection, connects+3.3V power supply by terminal VCC；Described electric capacity C5 one end connects+3.3V power supply, other end ground connection；Described electric capacity C6 one end connects the terminal Y of described Schmidt trigger U2, other end ground connection；Described resistance R8 one end is connected to the junction point between the terminal Y of described electric capacity C6 and described Schmidt trigger U2, and the described resistance R8 other end is connected to lead-out terminal CAP2 and is connected to the capture mouth of DSP by described lead-out terminal CAP2.
Described motor of electric motor car reversing braking controls system, wherein: described throttle signal detection hardware handles circuit is to be connected to form by resistance R9～R17, Transient Suppression Diode TVS1, operational amplifier Q2 and Q3, electric capacity C7～C9 and connection terminal J1；Described connection terminal J1 has pin TIAO_1, pin VIN and pin KI；The anode tap ground connection of described Transient Suppression Diode TVS1, cathode terminal is connected to terminal ADCINA4；Described resistance R9 one end connects the cathode terminal of described Transient Suppression Diode TVS1, and the other end connects the outfan of described operational amplifier Q2；The inverting input of described operational amplifier Q2 is connected to outfan, and in-phase input end passes sequentially through concatenation described resistance R10, R12 and is connected to the outfan of described operational amplifier Q3；Described resistance R11 one end ground connection, the other end is connected to the junction point of described resistance R10 and resistance R12；Described electric capacity C7 is parallel to described resistance R11 two ends；The power positive end of described operational amplifier Q3 connects+5V power supply, negative pole end ground connection, and in-phase input end is connected to the pin TIAO_1 of described connection terminal J1 by described resistance R16, and inverting input passes through described resistance R15 ground connection；Described resistance R17 one end ground connection, the other end is connected to the pin TIAO_1 of described connection terminal J1；Described resistance R13 one end is connected to the outfan of described operational amplifier Q3, and the other end is connected described electric capacity C8 and is connected to the inverting input of described operational amplifier Q3 by described electric capacity C8；Described resistance R14 one end connects the outfan of described operational amplifier Q3, and the other end connects the inverting input of described operational amplifier Q3.
Described motor of electric motor car reversing braking controls system, wherein: described stator current testing circuit is to be connected to form by Hall chip A1, Transient Suppression Diode TVS2 and TVS3, electric capacity C10～C20, resistance R18～R28, chip U3, operational amplifier Q4 and Q5；No. 1 pin of described Hall chip A1 connects+5V power supply, No. 2 pin ground connection；The anode tap ground connection of described Transient Suppression Diode TVS2, cathode terminal connects No. 3 pins of described Hall chip A1；Described electric capacity C10 one end ground connection, the other end connects+5V power supply；Described electric capacity C11 one end connects No. 3 pins of described Hall chip A1, other end ground connection；Described electric capacity C12 one end connects No. 3 pins of described Hall chip A1, and the other end is connected described resistance R20 and is connected to the pin IN1 of described chip U3 by described resistance R20；Described resistance R18 one end ground connection, the other end is connected to No. 3 pins of described Hall chip A1 and the junction point of described electric capacity C12；Described resistance R19 one end ground connection, the other end is connected to the junction point of described electric capacity C12 and resistance R20；Described chip U3 passes through pin IN2 ground connection, connects+5V power supply by pin V+；Described electric capacity C13 one end connects+5V power supply, other end ground connection；Described electric capacity C14 is polar capacitor, and its positive terminal connects the pin Vout of described chip U3, and negative pole end connects the pin OUT_RIN of described chip U3, pin EN and pin GND respectively；Described resistance R21 one end connects the pin Vout of described chip U3, and the other end is connected described resistance R23 and connected the in-phase input end of described operational amplifier Q4 by described resistance R23；Described electric capacity C15 one end connects the junction point of described resistance R21 and resistance R23, other end ground connection；Described resistance R22 one end connects the junction point of described resistance R21 and resistance R23, other end ground connection；The positive terminal of described operational amplifier Q4 connects+5V power supply, negative pole end ground connection, and inverting input connects described resistance R24 and by described resistance R24 ground connection；Described electric capacity C16 one end is connected between in-phase input end and the inverting input of described operational amplifier Q4；Described resistance R25 is connected between inverting input and the outfan of described operational amplifier Q4；Described electric capacity C17 is parallel to described resistance R25 two ends；Described electric capacity C18 one end is connected to the outfan of described operational amplifier Q4, other end ground connection；Described resistance R26 is parallel to described electric capacity C18 two ends；Described resistance R27 one end is connected to the outfan of described operational amplifier Q4, and the other end is connected to the in-phase input end of described operational amplifier Q5；The inverting input of described operational amplifier Q4 is connected with outfan；Described resistance R28 one end connects the outfan of described operational amplifier Q4, and the other end is connected to terminal ADCIN5；Described electric capacity C19 one end connects terminal ADCIN5, other end ground connection；The anode tap ground connection of described Transient Suppression Diode TVS3, cathode terminal connects terminal ADCIN5；Described electric capacity C20 one end connects+5V power supply, other end ground connection.
Described motor of electric motor car reversing braking controls system, wherein: described gear on-off signal deteching circuit includes forward range switching signal testing circuit and retreats gear on-off signal deteching circuit；
Described forward range switching signal testing circuit is to connect to form by entering to keep off chip U11, resistance R57, resistance R71, resistance R73, electric capacity C33, electric capacity C82 and binding post J10；Described enter to keep off chip U11 there is pin DA1, pin DK1, pin TC1 and pin TE1；Described enter to keep off chip U11 and connect described resistance R71 by described pin DA1 and be connected to No. 1 foot of described binding post J10 by described resistance R71, described in enter to keep off chip U11 and pass through described pin DK1 and TE1 ground connection；Entering to keep off the pin TC1 of chip U11 described in the connection of described resistance R73 one end, the other end connects+3.3V power supply；Described resistance R57 one end is connected to No. 1 foot of described binding post J10, other end ground connection；Described electric capacity C33 one end is connected to No. 1 foot of described binding post J10, other end ground connection；Described electric capacity C82 one end connects ground connection, the other end be connected to described in enter to keep off the pin TC1 of chip U11；
Described retrogressing gear on-off signal deteching circuit be by moving back gear chip U13, resistance R60, resistance R72, resistance R74, electric capacity C36, electric capacity C96 and binding post J15 connect to form；The described gear chip U13 that moves back has pin DA1, pin DK1, pin TC1 and pin TE1；The described gear chip U13 that moves back connects described resistance R72 by described pin DA1 and is connected to No. 1 foot of described binding post J15 by described resistance R72, described in move back and keep off chip U13 and pass through described pin DK1 and TE1 ground connection；The pin TC1 keeping off chip U13 is moved back, described in connecting, in described resistance R74 one end, and the other end connects+3.3V power supply；Described resistance R60 one end is connected to No. 1 foot of described binding post J15, other end ground connection；Described electric capacity C36 one end is connected to No. 1 foot of described binding post J15, other end ground connection；Described electric capacity C96 one end connect ground connection, the other end be connected to described in move back gear chip U13 pin TC1.
Beneficial effect:
The design of this utility model motor of electric motor car reversing braking Control system architecture is simple, reasonable, need to stop or need from when dropping to low speed rapidly at a high speed as early as possible at motor, arbitrarily biphase voltage is made to exchange phase sequence by the mode of electronics commutation, motor is made to produce the countertorque of retardation so that braking motor, disclosure satisfy that three phase electric machine reversing braking technical need, adopt electronics commutation mode completely, cost is low, reliability is leaned on, and has extremely strong using value.When motor speed is higher than a certain rotating speed n1Time, any two-phase-region casting signal of motor driver is exchanged and enters reversing braking pattern, now increase braking torque and restriction stalling current slowly according to the size of motor speed so that the rotating speed of motor reduces；When motor speed is higher than a certain rotating speed n2Time, directly any two-phase-region casting signal of motor driver is exchanged and enter reversing braking pattern, use reversing braking pattern so that the rotating speed of motor drops to close to 0；When the rotating speed of motor is close to 0, now judge the electric current of armature winding, if electric current is very big, then (now enters transitive state, when reducing braking moment to a certain numerical value slowly) and cancel reversing braking moment；If electric current is only small, then directly cancels reversing braking pattern, return to original state.
Accompanying drawing explanation
Fig. 1 is the structure principle chart that this utility model motor of electric motor car reversing braking controls system；
6 pulse sequence figure of switching tube when Fig. 2 is the motor rotating forward of this utility model motor of electric motor car reversing braking control system；
6 pulse sequence figure of switching tube when Fig. 3 is the motor reversal of this utility model motor of electric motor car reversing braking control system；
Fig. 4 is the drive circuit major loop schematic diagram that this utility model motor of electric motor car reversing braking controls system；
Fig. 5 is the Rotating speed measring circuit theory diagrams that this utility model motor of electric motor car reversing braking controls the motor regenerative braking state recognition unit of system；
Fig. 6 is the throttle signal testing circuit schematic diagram that this utility model motor of electric motor car reversing braking controls the motor regenerative braking state recognition unit of system；
Fig. 7 is the stator current testing circuit schematic diagram that this utility model motor of electric motor car reversing braking controls the motor regenerative braking state recognition unit of system；
Fig. 8 is the forward range switching signal testing circuit schematic diagram that this utility model motor of electric motor car reversing braking controls the motor regenerative braking state recognition unit of system；
Fig. 9 is the retrogressing gear on-off signal deteching circuit schematic diagram that this utility model motor of electric motor car reversing braking controls the motor regenerative braking state recognition unit of system.
Detailed description of the invention
As it is shown in figure 1, this utility model motor of electric motor car reversing braking controls system, turn to recognition unit 3, electronics commutation unit 4 and brake voltage and frequency regulon 5 including motor regenerative braking state recognition unit 1, braking mode interlocking unit 2, rotor.
This motor regenerative braking state recognition unit 1 one end electrical connection braking mode interlocking unit 2, according to electric machine controller according to the currently running parameter of motor during its major function, mainly throttle signal, rotor speed and stator current, judge whether motor currently enters reversing braking pattern, the condition entering reversing braking pattern in the present invention is: do not have throttle signal, when when turning to pattern to be set as advancing of motor, actually detected to turn to for retreat or when motor turn to pattern be set as retreat time, actually detected to turn to for advance.
Wherein, this motor regenerative braking state recognition unit 1 is mainly used in feedback signal is analyzed, it is judged that the state of motor, and it is mainly made up of and gear on-off signal deteching circuit Rotating speed measring circuit, throttle signal testing circuit, stator current testing circuit.
As it is shown in figure 5, this Rotating speed measring circuit is to be connected to form by resistance R1～R8, electric capacity C1～C6, common mode inhibition inductance T, voltage comparator Q1, photoelectrical coupler U1 and Schmidt trigger U2；This resistance R1 one end connects+12V power supply, the other end connects common mode inhibition one of them input of inductance T by resistance R2, and the junction point of this resistance R1 and resistance R2 is also associated with terminal BM_B and is connected to the tacho-pulse outfan of orthogonal encoder of motor by terminal BM_B；Electric capacity C1 is parallel between two inputs of common mode inhibition inductance T and one end also ground connection；Electric capacity C2 is parallel between two outfans of common mode inhibition inductance T and one end also ground connection；The power positive end of this voltage comparator Q1 connects+12V power supply, power cathode end ground connection, and in-phase input end connects common mode inhibition one of them outfan of inductance T, and inverting input is connected resistance R3 and connected the power supply of+6V by resistance R3；Resistance R4 one end ground connection, the other end connects the outfan of voltage comparator Q1；The cathode terminal ground connection of this photoelectrical coupler U1, anode tap is connected to the outfan of voltage comparator Q1 by resistance R5, and base stage connects+3.3V power supply, and grounded emitter, colelctor electrode is connected to the port A of Schmidt trigger U2 by resistance R7；Resistance R6 one end connects+3.3V power supply, and the other end connects the colelctor electrode of photoelectrical coupler U1；Electric capacity C3 one end is connected to the colelctor electrode of photoelectrical coupler U1 and the junction point of resistance R6, R7, other end ground connection；Electric capacity C4 one end ground connection, the other end is connected to the junction point of base stage and the+3.3V power supply of resistance R6, photoelectrical coupler U1；This Schmidt trigger U2 passes through terminal GND ground connection, connects+3.3V power supply by terminal VCC；Electric capacity C5 one end connects+3.3V power supply, other end ground connection；Electric capacity C6 one end connects the terminal Y of Schmidt trigger U2, other end ground connection；Resistance R8 one end is connected to the junction point between the terminal Y of electric capacity C6 and Schmidt trigger U2, and the other end is connected to lead-out terminal CAP2 and is connected to the capture mouth of DSP by lead-out terminal CAP2.
As shown in Figure 6, this throttle signal testing circuit is to be connected to form by resistance R9～R17, Transient Suppression Diode TVS1, operational amplifier Q2 and Q3, electric capacity C7～C9 and connection terminal J1, and this connection terminal J1 has pin TIAO_1, pin VIN and pin KI；The anode tap ground connection of Transient Suppression Diode TVS1, cathode terminal is connected to terminal ADCINA4；This resistance R9 one end connects the cathode terminal of Transient Suppression Diode TVS1, the outfan of other end concatenation operation amplifier Q2；The inverting input of operational amplifier Q2 is connected to outfan, and in-phase input end passes sequentially through series resistor R10, R12 and is connected to the outfan of operational amplifier Q3；Resistance R11 one end ground connection, the other end is connected to the junction point of resistance R10 and resistance R12；Electric capacity C7 is parallel to this resistance R11 two ends；The power positive end of operational amplifier Q3 connects+5V power supply, negative pole end ground connection, and in-phase input end is connected to connect the pin TIAO_1 of terminal J1 by resistance R16, and inverting input passes through resistance R15 ground connection；Resistance R17 one end ground connection, the other end is connected to the pin TIAO_1 connecting terminal J1；Resistance R13 one end is connected to the outfan of operational amplifier Q3, and the other end is connected electric capacity C8 and is connected to the inverting input of operational amplifier Q3 by electric capacity C8；The outfan of resistance R14 one end concatenation operation amplifier Q3, the inverting input of other end concatenation operation amplifier Q3.
As it is shown in fig. 7, this stator current testing circuit is to be connected to form by Hall chip A1, Transient Suppression Diode TVS2 and TVS3, electric capacity C10～C20, resistance R18～R28, chip U3, operational amplifier Q4 and Q5；Wherein, No. 1 pin of this Hall chip A1 connects+5V power supply, No. 2 pin ground connection；The anode tap ground connection of this Transient Suppression Diode TVS2, cathode terminal connects No. 3 pins of Hall chip A1；This electric capacity C10 one end ground connection, the other end connects+5V power supply；This electric capacity C11 one end connects No. 3 pins of Hall chip A1, other end ground connection；This electric capacity C12 one end connects No. 3 pins of Hall chip A1, and the other end is connected resistance R20 and is connected to the pin IN1 of chip U3 by resistance R20；This resistance R18 one end ground connection, the other end is connected to No. 3 pins of Hall chip A1 and the junction point of electric capacity C12；This resistance R19 one end ground connection, the other end is connected to the junction point of electric capacity C12 and resistance R20；This chip U3 passes through pin IN2 ground connection, connects+5V power supply by pin V+；Electric capacity C13 one end connects+5V power supply, other end ground connection；This electric capacity C14 is polar capacitor, and its positive terminal connects the pin Vout of chip U3, and negative pole end connects the pin OUT_RIN of chip U3, pin EN and pin GND respectively；Resistance R21 one end connects the pin Vout of chip U3, and the other end connects resistance R23 and by the in-phase input end of resistance R23 concatenation operation amplifier Q4；Electric capacity C15 one end connects the junction point of resistance R21 and resistance R23, other end ground connection；Resistance R22 one end connects the junction point of resistance R21 and resistance R23, other end ground connection；The positive terminal of this operational amplifier Q4 connects+5V power supply, negative pole end ground connection, and inverting input connects resistance R24 and by resistance R24 ground connection；This electric capacity C16 one end is connected between in-phase input end and the inverting input of operational amplifier Q4；This resistance R25 is connected between inverting input and the outfan of operational amplifier Q4；This electric capacity C17 is parallel to resistance R25 two ends；Electric capacity C18 one end is connected to the outfan of operational amplifier Q4, other end ground connection；This resistance R26 is parallel to this electric capacity C18 two ends；This resistance R27 one end is connected to the outfan of operational amplifier Q4, and the other end is connected to the in-phase input end of operational amplifier Q5；The inverting input of this operational amplifier Q4 is connected with outfan；The outfan of this resistance R28 one end concatenation operation amplifier Q4, the other end is connected to terminal ADCIN5；This electric capacity C19 one end connects terminal ADCIN5, other end ground connection；The anode tap ground connection of this Transient Suppression Diode TVS3, cathode terminal connects terminal ADCIN5；Electric capacity C20 one end connects+5V power supply, other end ground connection.
This gear on-off signal deteching circuit includes forward range switching signal testing circuit and retreats gear on-off signal deteching circuit.
As shown in Figure 8, this forward range switching signal testing circuit is formed by entering to keep off chip U11, resistance R57, resistance R71, resistance R73, electric capacity C33, electric capacity C82 and binding post J10；Wherein, this enters to keep off chip U11 and has pin DA1, pin DK1, pin TC1 and pin TE1；This is entered to keep off chip U11 and connects resistance R71 by pin DA1 and be connected to No. 1 foot of binding post J10 by resistance R71, and this enters to keep off chip U11 by pin DK1 and TE1 ground connection；This resistance R73 one end connects the pin TC1 into gear chip U11, and the other end connects+3.3V power supply；This resistance R57 one end is connected to No. 1 foot of binding post J10, other end ground connection；This electric capacity C33 one end is connected to No. 1 foot of binding post J10, other end ground connection；Electric capacity C82 one end connects ground connection, and the other end is connected to the pin TC1 into gear chip U11.
As it is shown in figure 9, this retrogressing gear on-off signal deteching circuit is formed by moving back gear chip U13, resistance R60, resistance R72, resistance R74, electric capacity C36, electric capacity C96 and binding post J15；Wherein, this move back gear chip U13 there is pin DA1, pin DK1, pin TC1 and pin TE1；This is moved back gear chip U13 and connects resistance R72 by pin DA1 and be connected to No. 1 foot of binding post J15 by resistance R72, and this moves back gear chip U13 by pin DK1 and TE1 ground connection；This resistance R74 one end connects the pin TC1 moving back gear chip U13, and the other end connects+3.3V power supply；This resistance R60 one end is connected to No. 1 foot of binding post J15, other end ground connection；This electric capacity C36 one end is connected to No. 1 foot of binding post J15, other end ground connection；Electric capacity C96 one end connects ground connection, and the other end is connected to the pin TC1 moving back gear chip U13.
This braking mode interlocking unit 2 one end electrical connection rotor turns to recognition unit 3, and its major function is that the different mode of braking to motor interlocks, it is ensured that motor currently can only operate in a kind of braking mode, and namely synchronization can only operate in a kind of braking mode.Wherein, the method that realizes of this braking mode interlocking unit 2 is: the mode of braking one of motor has three kinds, one is regenerative braking, two is dynamic braking, three is reversing braking, can only enter the one in these three braking mode at synchronization, i.e. regenerative braking state recognition unit 1 is once differentiate that this system currently to enter regenerative braking state, so composite braking pattern interlocking unit 2 is it is necessary that current state can only enter regenerative braking pattern, and system is not likely to enter other mode of operation.
This rotor turns to recognition unit 3 one end electrical connection electronics commutation unit 4, its major function is to judge that turning to of rotor turns clockwise or rotate counterclockwise, the pattern that turns in combination with motor is analyzed, current rotor turn to will with motor set turn to pattern consistent.
This electronics commutation unit 4 one end electrical connection brake voltage and frequency regulon 5, its major function is the mode by electronics commutation, exchanges the phase sequence that motor is arbitrarily biphase so that turning to of rotating excitation field is contrary with turning to of current rotor.
This brake voltage and frequency regulon 5 major function are the frequencies of the voltage of voltage during adjustment reversing braking and stator winding, it is ensured that the electric current produced during braking is in the working range that driver is safe and reliable.
Utility model works principle:
First motor regenerative braking state recognition unit judges whether to enter reversing braking mode of operation according to the running status of motor, once enter reversing braking pattern, three kinds of braking modes of motor are carried out interlocking and ensure that current motor is only operated at reversing braking pattern by braking mode interlocking unit, rotor turns to recognition unit to carry out judging and analyzing according to the two paths of signals that orthogonal encoder exports, identify turning to of now motor, it is rotate forward or reversion, electronics commutation unit turns to, according to rotor, the motor steering signal that recognition unit analyzes, exchange two-phase induction motor and drive the phase sequence of signal, thus forming the magnetic field contrary with current rotor rotation direction, brake voltage and frequency regulon regulate and arrange the moment of opposing magnetic field by the frequency of the stator voltage after changing commutation, thus hindering the rotation of rotor, realize reversing braking function.
This utility model structural design is simple, reasonable, it is possible to meet three phase electric machine reversing braking technical need, adopts electronics commutation mode completely, and cost is low, and reliability is leaned on, and has extremely strong using value.
Claims (5)
1. a motor of electric motor car reversing braking controls system, it is characterised in that: described control system is mainly turned to recognition unit, electronics commutation unit and brake voltage and frequency regulon to form by motor regenerative braking state recognition unit, braking mode interlocking unit, rotor；
Described motor regenerative braking state recognition unit one end electrically connects described braking mode interlocking unit, and it is mainly made up of Rotating speed measring circuit, throttle signal testing circuit, stator current testing circuit and gear on-off signal deteching circuit；
Described braking mode interlocking unit one end electrically connects described rotor and turns to recognition unit；
Described rotor turns to recognition unit one end to electrically connect described electronics commutation unit；
Described electronics commutation unit one end electrically connects described brake voltage and frequency regulon.
2. motor of electric motor car reversing braking as claimed in claim 1 controls system, it is characterised in that: described Rotating speed measring circuit is to be connected to form by resistance R1～R8, electric capacity C1～C6, common mode inhibition inductance T, voltage comparator Q1, photoelectrical coupler U1 and Schmidt trigger U2 by described Rotating speed measring circuit；
Described resistance R1 one end connects+12V power supply, the other end connects described common mode inhibition one of them input of inductance T by described resistance R2, and the junction point of described resistance R1 and resistance R2 is also associated with terminal BM_B and is connected to the tacho-pulse outfan of orthogonal encoder of motor by described terminal BM_B；Described electric capacity C1 is parallel between two inputs of described common mode inhibition inductance T and one end also ground connection；Described electric capacity C2 is parallel between two outfans of described common mode inhibition inductance T and one end also ground connection；The power positive end of described voltage comparator Q1 connects+12V power supply, power cathode end ground connection, and in-phase input end connects described common mode inhibition one of them outfan of inductance T, and inverting input is connected described resistance R3 and connected the power supply of+6V by described resistance R3；Described resistance R4 one end ground connection, the other end connects the outfan of described voltage comparator Q1；The cathode terminal ground connection of described photoelectrical coupler U1, anode tap is connected to the outfan of described voltage comparator Q1 by described resistance R5, base stage connects+3.3V power supply, and grounded emitter, colelctor electrode is connected to the port A of described Schmidt trigger U2 by described resistance R7；Described resistance R6 one end connects+3.3V power supply, and the other end connects the colelctor electrode of described photoelectrical coupler U1；Described electric capacity C3 one end is connected to the colelctor electrode of described photoelectrical coupler U1 and the junction point of described resistance R6, R7, other end ground connection；Described electric capacity C4 one end ground connection, the other end is connected to the junction point of base stage and the+3.3V power supply of described resistance R6, photoelectrical coupler U1；Described Schmidt trigger U2 passes through terminal GND ground connection, connects+3.3V power supply by terminal VCC；Described electric capacity C5 one end connects+3.3V power supply, other end ground connection；Described electric capacity C6 one end connects the terminal Y of described Schmidt trigger U2, other end ground connection；Described resistance R8 one end is connected to the junction point between the terminal Y of described electric capacity C6 and described Schmidt trigger U2, and the described resistance R8 other end is connected to lead-out terminal CAP2 and is connected to the capture mouth of DSP by described lead-out terminal CAP2.
3. motor of electric motor car reversing braking as claimed in claim 1 controls system, it is characterised in that: described throttle signal detection hardware handles circuit is to be connected to form by resistance R9～R17, Transient Suppression Diode TVS1, operational amplifier Q2 and Q3, electric capacity C7～C9 and connection terminal J1；Described connection terminal J1 has pin TIAO1, pin VIN and pin KI；
The anode tap ground connection of described Transient Suppression Diode TVS1, cathode terminal is connected to terminal ADCINA4；Described resistance R9 one end connects the cathode terminal of described Transient Suppression Diode TVS1, and the other end connects the outfan of described operational amplifier Q2；The inverting input of described operational amplifier Q2 is connected to outfan, and in-phase input end passes sequentially through concatenation described resistance R10, R12 and is connected to the outfan of described operational amplifier Q3；Described resistance R11 one end ground connection, the other end is connected to the junction point of described resistance R10 and resistance R12；Described electric capacity C7 is parallel to described resistance R11 two ends；The power positive end of described operational amplifier Q3 connects+5V power supply, negative pole end ground connection, and in-phase input end is connected to the pin TIAO_1 of described connection terminal J1 by described resistance R16, and inverting input passes through described resistance R15 ground connection；Described resistance R17 one end ground connection, the other end is connected to the pin TIAO_1 of described connection terminal J1；Described resistance R13 one end is connected to the outfan of described operational amplifier Q3, and the other end is connected described electric capacity C8 and is connected to the inverting input of described operational amplifier Q3 by described electric capacity C8；Described resistance R14 one end connects the outfan of described operational amplifier Q3, and the other end connects the inverting input of described operational amplifier Q3.
4. motor of electric motor car reversing braking as claimed in claim 1 controls system, it is characterised in that: described stator current testing circuit is to be connected to form by Hall chip (A1), Transient Suppression Diode TVS2 and TVS3, electric capacity C10～C20, resistance R18～R28, chip (U3), operational amplifier Q4 and Q5；
No. 1 pin of described Hall chip (A1) connects+5V power supply, No. 2 pin ground connection；The anode tap ground connection of described Transient Suppression Diode TVS2, cathode terminal connects No. 3 pins of described Hall chip (A1)；Described electric capacity C10 one end ground connection, the other end connects+5V power supply；Described electric capacity C11 one end connects No. 3 pins of described Hall chip (A1), other end ground connection；Described electric capacity C12 one end connects No. 3 pins of described Hall chip (A1), and the other end is connected described resistance R20 and is connected to the pin IN1 of described chip (U3) by described resistance R20；Described resistance R18 one end ground connection, the other end is connected to No. 3 pins of described Hall chip (A1) and the junction point of described electric capacity C12；Described resistance R19 one end ground connection, the other end is connected to the junction point of described electric capacity C12 and resistance R20；Described chip (U3), by pin IN2 ground connection, connects+5V power supply by pin V+；Described electric capacity C13 one end connects+5V power supply, other end ground connection；Described electric capacity C14 is polar capacitor, and its positive terminal connects the pin Vout of described chip (U3), and negative pole end connects the pin OUT_RIN of described chip (U3), pin EN and pin GND respectively；Described resistance R21 one end connects the pin Vout of described chip (U3), and the other end is connected described resistance R23 and connected the in-phase input end of described operational amplifier Q4 by described resistance R23；Described electric capacity C15 one end connects the junction point of described resistance R21 and resistance R23, other end ground connection；Described resistance R22 one end connects the junction point of described resistance R21 and resistance R23, other end ground connection；The positive terminal of described operational amplifier Q4 connects+5V power supply, negative pole end ground connection, and inverting input connects described resistance R24 and by described resistance R24 ground connection；Described electric capacity C16 one end is connected between in-phase input end and the inverting input of described operational amplifier Q4；Described resistance R25 is connected between inverting input and the outfan of described operational amplifier Q4；Described electric capacity C17 is parallel to described resistance R25 two ends；Described electric capacity C18 one end is connected to the outfan of described operational amplifier Q4, other end ground connection；Described resistance R26 is parallel to described electric capacity C18 two ends；Described resistance R27 one end is connected to the outfan of described operational amplifier Q4, and the other end is connected to the in-phase input end of described operational amplifier Q5；The inverting input of described operational amplifier Q4 is connected with outfan；Described resistance R28 one end connects the outfan of described operational amplifier Q4, and the other end is connected to terminal ADCIN5；Described electric capacity C19 one end connects terminal ADCIN5, other end ground connection；The anode tap ground connection of described Transient Suppression Diode TVS3, cathode terminal connects terminal ADCIN5；Described electric capacity C20 one end connects+5V power supply, other end ground connection.
5. motor of electric motor car reversing braking as claimed in claim 1 controls system, it is characterised in that: described gear on-off signal deteching circuit includes forward range switching signal testing circuit and retreats gear on-off signal deteching circuit；
Described forward range switching signal testing circuit is to connect to form by entering to keep off chip (U11), resistance R57, resistance R71, resistance R73, electric capacity C33, electric capacity C82 and binding post J10；Described enter to keep off chip (U11) there is pin DA1, pin DK1, pin TC1 and pin TE1；Described enter to keep off chip (U11) and connect described resistance R71 by described pin DA1 and be connected to No. 1 foot of described binding post J10 by described resistance R71, described in enter to keep off chip (U11) by described pin DK1 and TE1 ground connection；Entering to keep off the pin TC1 of chip (U11) described in the connection of described resistance R73 one end, the other end connects+3.3V power supply；Described resistance R57 one end is connected to No. 1 foot of described binding post J10, other end ground connection；Described electric capacity C33 one end is connected to No. 1 foot of described binding post J10, other end ground connection；Described electric capacity C82 one end connects ground connection, the other end be connected to described in enter to keep off the pin TC1 of chip (U11)；
Described retrogressing gear on-off signal deteching circuit be by moving back gear chip (U13), resistance R60, resistance R72, resistance R74, electric capacity C36, electric capacity C96 and binding post J15 connect to form；Described gear chip (U13) that moves back has pin DA1, pin DK1, pin TC1 and pin TE1；Described gear chip (U13) that moves back is connected described resistance R72 by described pin DA1 and is connected to No. 1 foot of described binding post J15 by described resistance R72, described in move back and keep off chip (U13) by described pin DK1 and TE1 ground connection；The pin TC1 keeping off chip (U13) is moved back, described in connecting, in described resistance R74 one end, and the other end connects+3.3V power supply；Described resistance R60 one end is connected to No. 1 foot of described binding post J15, other end ground connection；Described electric capacity C36 one end is connected to No. 1 foot of described binding post J15, other end ground connection；Described electric capacity C96 one end connect ground connection, the other end be connected to described in move back gear chip (U13) pin TC1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520872762.0U CN205389181U (en) | 2015-11-05 | 2015-11-05 | Motor plug braking control system for electric motor car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520872762.0U CN205389181U (en) | 2015-11-05 | 2015-11-05 | Motor plug braking control system for electric motor car |
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| CN205389181U true CN205389181U (en) | 2016-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520872762.0U Expired - Fee Related CN205389181U (en) | 2015-11-05 | 2015-11-05 | Motor plug braking control system for electric motor car |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110871692A (en) * | 2018-08-31 | 2020-03-10 | 比亚迪股份有限公司 | Train brake control method and device and train |
| CN111806416A (en) * | 2019-04-12 | 2020-10-23 | 北京骑胜科技有限公司 | Brake fault detection method and device |
| CN114625042A (en) * | 2022-02-25 | 2022-06-14 | 南平市建阳区波特安电子科技有限公司 | Direct control system of bridge crane |
-
2015
- 2015-11-05 CN CN201520872762.0U patent/CN205389181U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110871692A (en) * | 2018-08-31 | 2020-03-10 | 比亚迪股份有限公司 | Train brake control method and device and train |
| CN110871692B (en) * | 2018-08-31 | 2021-04-20 | 比亚迪股份有限公司 | Train brake control method and device and train |
| CN111806416A (en) * | 2019-04-12 | 2020-10-23 | 北京骑胜科技有限公司 | Brake fault detection method and device |
| CN111806416B (en) * | 2019-04-12 | 2022-05-24 | 广州骑安科技有限公司 | Brake fault detection method and device |
| CN114625042A (en) * | 2022-02-25 | 2022-06-14 | 南平市建阳区波特安电子科技有限公司 | Direct control system of bridge crane |
| CN114625042B (en) * | 2022-02-25 | 2023-12-26 | 南平市建阳区波特安电子科技有限公司 | Bridge crane direct control system |
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