CN102594241B - Intelligent controller for electric eddy current retarder - Google Patents
Intelligent controller for electric eddy current retarder Download PDFInfo
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- CN102594241B CN102594241B CN201210075813.8A CN201210075813A CN102594241B CN 102594241 B CN102594241 B CN 102594241B CN 201210075813 A CN201210075813 A CN 201210075813A CN 102594241 B CN102594241 B CN 102594241B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Abstract
The invention provides an intelligent controller for an electric eddy current retarder. The intelligent controller is characterized in that a manual rotary encoding switch is connected with a microprocessor through a first photoelectric isolation circuit, vehicle speed signals and antilock braking system (ABS) signals are connected with the microprocessor through a second photoelectric isolation circuit, brake pedal signals are connected with the microprocessor through a first analog signal magnification and comparison circuit, the output end of the microprocessor is connected with the input end of a retarder coil through a photoelectric isolation driving power circuit, the driving power device current signals output by the photoelectric isolation driving power circuit are connected with the microprocessor through a second analog signal magnification and comparison circuit, and retarder coil temperature signals and driving power device temperature signals are connected with the microprocessor through a third analog signal magnification and comparison circuit. The intelligent controller has the advantages that the electrodeless regulation of current passing through a retarder coil can be realized through selecting an encoding switch; integrated double-metal-oxide-semiconductor-field-effect-transistor (MOSFET) power chips are selected, and the system reliability is improved; and a hardware protection circuit can make fast response to system abnormities.
Description
Technical field
The present invention relates to current vortex control field, specifically a kind of Novel eddy current brake intelligent controller.
Background technology
In existing oversize vehicle (as passenger vehicle, bus and lorry), increase gradually current vortex retarder and improve vehicle safety arrestment power in the process of moving.Eddy current retarder control system mainly divides two parts: the one, and the control section being formed by main processing controller and peripheral circuit thereof; The mechanical part that another part is made up of magnet exciting coil and corresponding mechanical structure.
At present, current vortex retarder is all to adopt a point gear control mode with controller, and the current changing rate that flows through power device while making to brake is larger, is unfavorable for the long-time use of power drive device.
Summary of the invention
The object of this invention is to provide a kind of Novel eddy current brake controller.The subject matter that the present invention solves is, overcomes deficiency of the prior art, a kind of high reliability is provided, has the controller of current vortex retarder of mild control function.
According to technical scheme provided by the invention, described Intelligent controller for electric eddy current retarder comprises microprocessor, also comprises manual rotation code switch input circuit, the first photoelectric isolating circuit, the second photoelectric isolating circuit, photoelectricity isolation drive power circuit, the first analog signal amplification and comparison circuit, retarder coil, the second analog signal amplification and comparison circuit, the 3rd analog signal amplification and comparison circuit, display screen; Described manual rotation code switch has switching function and coding output function, connects the input of described microprocessor by the first photoelectric isolating circuit; Vehicle speed signal, ABS signal connect the input of microprocessor by described the second photoelectric isolating circuit; Brake pedal signal amplifies by described the first analog signal the input that is connected microprocessor with comparison circuit; The output of microprocessor connects the input of described retarder coil by photoelectricity isolation drive power circuit, the driving power device current signal of photoelectricity isolation drive power circuit output amplifies by described the second analog signal the input that is connected microprocessor with comparison circuit simultaneously; Retarder coil temperature signal, driving power device temperature signal amplify the input that is connected microprocessor with comparison circuit by the 3rd analog signal; Display screen is connected with microprocessor.
Described microprocessor connects relay indicating light and sound light alarming circuit by the 3rd photoelectric isolating circuit, and described relay indicating light comprises buffer controller power supply indicator and on-position indicator light.
Described manual rotation code switch input circuit comprises rotary coding switch CI11-CT-V1Y22-LFACF, the pin E ground connection of CI11-CT-V1Y22-LFACF, and be connected with pin D by the first electric capacity, pin D connects the first optocoupler light-emitting diodes tube cathode, the first optocoupler light-emitting diodes tube anode is by be connected to+5V of the first resistance power supply, and by the second capacity earth, the reception transistor emitter ground connection of the first optocoupler, collector electrode connects 5V power supply by the second resistance, and be connected to 1 pin of the integrated 74LS07-1 of device in the same way, the first optocoupler receives transistor collector and is connected by the 3rd electric capacity with emitter, 2 pin of the integrated 74LS07-1 of device in the same way connect 3.3V power supply by the 3rd resistance, and output to microprocessor, the pin C ground connection of CI11-CT-V1Y22-LFACF, pin A connects the second optocoupler light-emitting diodes tube cathode, the second optocoupler light-emitting diodes tube anode is by the 4th be connected to+5V of resistance power supply, and by the 5th capacity earth, the second optocoupler receives transistor emitter ground connection, collector electrode connects 5V power supply by the 5th resistance, and be connected to 3 pin of the integrated 74LS07-2 of device in the same way, the collector and emitter that the second optocoupler receives triode is connected by capacitor C 4,4 pin of the integrated 74LS07-2 of device in the same way connect 3.3V power supply by the 6th resistance, and output to microprocessor, the pin B of rotary coding switch connects the 3rd optocoupler light-emitting diodes tube cathode, the 3rd optocoupler light-emitting diodes tube anode is by the 7th be connected to+5V of resistance power supply, and by the 7th capacity earth, the 3rd optocoupler receives transistor emitter ground connection, collector electrode connects 5V power supply by the 8th resistance, and be connected to 5 pin of the integrated 74LS07-3 of device in the same way, the collector and emitter that the 3rd optocoupler receives triode is connected by the 6th electric capacity, 6 pin of the integrated 74LS07-3 of device in the same way connect 3.3V power supply by the 9th resistance, and output to microprocessor.
Described microprocessor adopts DSP TMS320F28016, and 4 pin of the integrated 74LS07-2 of device in the same way connect the CAP1 pin of DSP TMS320F28016, and 6 pin of the integrated 74LS07-3 of device in the same way connect the CAP2 pin of DSP TMS320F28016; If enter the rising edge of the leading CAP2 signal of rising edge signal of the CAP1 signal of DSP TMS320F28016, be now defined as and be rotated in the forward, retarder braking force increases; If the rising edge of the rising edge hysteresis CAP2 signal of CAP1 signal, is now defined as reverse rotation, retarder braking force reduces.
Described photoelectricity isolation drive power circuit comprises the 4th optocoupler, integrated reverser 74LS04-1, MOSFET special driving chip UCC27321, integrated couple of MOSFET power tube IXTL2x240N055T, the 1 pin input of integrated reverser 74LS04-1 is from the driving signal PWM_1 of DSP TMS320F28016,2 pin connect the 4th optocoupler light-emitting diodes tube cathode, and the 4th optocoupler light-emitting diodes tube anode is connected to 3.3V power supply by the tenth resistance, the 4th optocoupler receives transistor emitter ground connection, between collector and emitter, connect the 8th electric capacity, the 4th optocoupler receives transistor collector simultaneously by the 11 resistance connection+10V power supply, and connect the pin 2 of UCC27321, described+10V power supply is by the 9th capacity earth, by the tenth capacity earth, the pin 1 of UCC27321 is connected described+10V power supply with pin 8, pin 4 and pin 5 ground connection, pin 6 and pin 7 are connected to the pin G of IXTL2x240N055T by the 12 resistance, the pin G of IXTL2x240N055T is by the 13 resistance and voltage stabilizing didoe ground connection, the pin S_1 of IXTL2x240N055T and pin S_2 ground connection, the pin D_1 of IXTL2x240N055T and pin D_2 connect one end of retarder coil, another termination+24V power supply of retarder coil, the first analog temperature sensor connects IXTL2x240N055T, output detection signal TEMP_1 is driving power device temperature signal, the second analog temperature sensor connects retarder coil, output detection signal TEMP_2 is retarder coil temperature signal, the loop that current sensor access IXTL2x240N055T and ground form, output detection signal
i1 is driving power device current signal, described TEMP_1, TEMP_2 and
i1 signal enters the second analog signal amplification and comparison circuit and the 3rd analog signal and amplifies and comparison circuit, output protection signal protect, guard signal protect respectively with DSP TMS320F28016 generate 4 road pwm signal PWM_1 ', PWM_2 ', PWM_3 ', PWM_4 ' through with door realize with logic after generate and drive four power tube Si roads to drive signal PWM_1, PWM_2, PWM_3, PWM_4, described and door is realized hardware lock and is driven semiotic function, when occurring retarder coil excess temperature, when driving power device excess temperature or overcurrent, protect low level signal will be by driving signal with door seal Suo Si road, thereby realize the hardware protection to retarder control system.
The intelligent control method of current vortex retarder comprises following main process:
1) DSP TMS320F28016 receives the signal to manual rotation code switch input circuit, and according to the opening and closing of switching signal control retarder braking function, regulate the power output of controller of current vortex retarder according to code signal, thereby realize the braking force of controlling current vortex retarder.
2) DSP TMS320F28016 gathers vehicle speed signal, ABS signal, brake pedal signal, realizes the Based Intelligent Control of controller of current vortex retarder.
Tool of the present invention has the following advantages:
1) by selecting code switch can realize the electrodeless adjusting by slow coil current.
2) select integrated pair of MOSFET power chip, improve the reliability of system.
3) hardware protection circuit of design can be made fast reaction to system exception.
Brief description of the drawings
Fig. 1 is system architecture diagram of the present invention.
Fig. 2 is the manual rotation code switch input circuit schematic diagram of the embodiment of the present invention.
Fig. 3 is rotary coding sequential chart of the present invention.Fig. 3 is the rising edge of the leading CAP2 signal of rising edge of middle CAP1 signal a); Fig. 3 is the rising edge of the rising edge hysteresis CAP2 signal of middle CAP1 signal b).
Fig. 4 is the photoelectricity isolation drive power circuit schematic diagram of the embodiment of the present invention.
Fig. 5 is that the analog signal of the embodiment of the present invention is amplified and comparison circuit schematic diagram.
Fig. 6 is the hardware circuit protection philosophy figure that the present invention realizes.
Fig. 7 is control main program flow chart of the present invention.
Fig. 8 is the automatic control flow chart figure that the present invention realizes.
Fig. 9 is the manual control flow chart that the present invention realizes.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
The controller of described intelligent electric eddy current retarder comprises: microprocessor (DSP TMS320F28016), manual rotation code switch input circuit, the first photoelectric isolating circuit, the second photoelectric isolating circuit, photoelectricity isolation drive power circuit, the first analog signal amplification and comparison circuit, retarder coil, the second analog signal amplification and comparison circuit, the 3rd analog signal amplification and comparison circuit, display screen; Described manual rotation code switch has switching function and coding output function, connects the input of described microprocessor by the first photoelectric isolating circuit; Vehicle speed signal, ABS signal connect the input of microprocessor by described the second photoelectric isolating circuit; Brake pedal signal amplifies by described the first analog signal the input that is connected microprocessor with comparison circuit; The output of microprocessor connects the input of described retarder coil by photoelectricity isolation drive power circuit, the output of photoelectricity isolation drive power circuit amplifies by described the second analog signal the input that is connected microprocessor with comparison circuit simultaneously; Retarder coil temperature signal, driving power device temperature signal amplify the input that is connected microprocessor with comparison circuit by the 3rd analog signal; Display screen is connected with microprocessor.
Described microprocessor connects relay indicating light and sound light alarming circuit by the 3rd photoelectric isolating circuit, and described relay indicating light comprises buffer controller power supply indicator and on-position indicator light.
Specific embodiment is as follows.
Described manual rotation code switch input circuit comprises rotary coding switch, and rotary coding switch is that the series number that piher company produces is CI11-CT-V1Y22-LFACF, and its pin A-E function diagram as shown in Figure 2.The pin E ground connection of CI11-CT-V1Y22-LFACF, and be connected with pin D by the first capacitor C 1, pin D connects the first optocoupler IC1 light-emitting diodes tube cathode, the first optocoupler IC1 light-emitting diodes tube anode is by the first be connected to+5V of resistance R 1 power supply, and by the second capacitor C 2 ground connection, the reception transistor emitter ground connection of the first optocoupler IC1, collector electrode connects 5V power supply by the second resistance R 2, and be connected to 1 pin of the integrated 74LS07-1 of device in the same way, the first optocoupler IC1 receives transistor collector and is connected by the 3rd capacitor C 3 with emitter, 2 pin of the integrated 74LS07-1 of device in the same way connect 3.3V power supply by the 3rd resistance R 3, and output to the GPIO12 pin of DSP TMS320F28016, the pin C ground connection of CI11-CT-V1Y22-LFACF, pin A connects the second optocoupler IC2 light-emitting diodes tube cathode, the second optocoupler IC2 light-emitting diodes tube anode is by the 4th be connected to+5V of resistance R 4 power supply, and by the 5th capacitor C 5 ground connection, the second optocoupler IC2 receives transistor emitter ground connection, collector electrode connects 5V power supply by the 5th resistance R 5, and be connected to 3 pin of the integrated 74LS07-2 of device in the same way, the collector and emitter that the second optocoupler IC2 receives triode is connected by capacitor C 4, 4 pin of the integrated 74LS07-2 of device in the same way connect 3.3V power supply by the 6th resistance R 6, and output to the CAP1 pin of DSP TMS320F28016, the pin B of rotary coding switch connects the 3rd optocoupler IC3 light-emitting diodes tube cathode, the 3rd optocoupler IC3 light-emitting diodes tube anode is by the 7th be connected to+5V of resistance R 7 power supply, and by the 7th capacitor C 7 ground connection, the 3rd optocoupler IC3 receives transistor emitter ground connection, collector electrode connects 5V power supply by the 8th resistance R 8, and be connected to 5 pin of the integrated 74LS07-3 of device in the same way, the collector and emitter that the 3rd optocoupler IC3 receives triode is connected by the 6th capacitor C 6, 6 pin of the integrated 74LS07-3 of device in the same way connect 3.3V power supply by the 9th resistance R 9, and output to the CAP2 pin of DSP TMS320F28016.
As shown in Figure 3, for entering CAP1 and the CAP2 signal of DSP TMS320F28016, in Fig. 3-a, the rising edge of the leading CAP2 signal of rising edge signal of CAP1, is now defined as and is rotated in the forward, and retarder braking force increases; In Fig. 3-b, the rising edge of the rising edge signal lag CAP2 signal of CAP1, is now defined as reverse rotation, and retarder braking force reduces.
As shown in Figure 4, described photoelectricity isolation drive power circuit comprises the 4th optocoupler IC4, integrated reverser 74LS04-1, MOSFET special driving chip IC5 UCC27321, integrated couple of MOSFET power tube IC6 IXTL2x240N055T, the 1 pin input of integrated reverser 74LS04-1 is from the driving signal PWM_1 of DSP TMS320F28016 in Fig. 1,2 pin connect the 4th optocoupler IC4 light-emitting diodes tube cathode, and the 4th optocoupler IC4 light-emitting diodes tube anode is connected to 3.3V power supply by the tenth resistance R 10, the 4th optocoupler IC4 receives transistor emitter ground connection, between collector and emitter, connect the 8th capacitor C 8, the 4th optocoupler IC4 receives transistor collector simultaneously by the 11 connect+10V of resistance R 11 power supply, and connect the pin 2 of IC5 UCC27321, described+10V power supply is by the 9th capacitor C 9 ground connection, by the tenth capacitor C 10 ground connection, the pin 1 of UCC27321 is connected described+10V power supply with pin 8, pin 4 and pin 5 ground connection, pin 6 and pin 7 are connected to the pin G of integrated couple of MOSFET power tube IC6 IXTL2x240N055T by the 12 resistance R 12, the pin G of integrated couple of MOSFET power tube IC6 is by the 13 resistance R 13 and voltage stabilizing didoe D1 ground connection, the pin S_1 of integrated couple of MOSFET power tube IC6 and pin S_2 ground connection, the pin D_1 of integrated couple of MOSFET power tube IC6 and pin D_2 connect one end of retarder coil, another termination+24V power supply of retarder coil, the first analog temperature sensor connects integrated couple of MOSFET power tube IC6, and output detection signal TEMP_1 is driving power device temperature signal, and the second analog temperature sensor connects retarder coil, and output detection signal TEMP_2 is retarder coil temperature signal, the loop that integrated couple of MOSFET power tube IC6 of current sensor access and ground form, output detection signal
i1 is driving power device current signal.
As shown in Figure 5, for analog signal of the present invention is amplified and comparison circuit, comprising temperature and current detecting and comparison circuit.TEMP_1 is from the first analog temperature sensor in Fig. 4, TEMP_1 connects the forward input pin 3 of integrated transporting discharging LM358-1 by the 15 resistance R 15, integrated transporting discharging LM358-1 forms scale operation circuit in the same way, proportionality coefficient is determined by the 14 resistance R the 14 and the 16 resistance R 16, by scale operation circuit in the same way, TEMP_1 signal is exaggerated, TEMP_1 signal after pin 1 output of integrated transporting discharging LM358-1 is amplified, be connected to the forward input pin 5 of integrated transporting discharging LM339-1 by the 17 resistance R 17, pin 5 is by the 5th electric capacity E5 ground connection, oppositely input pin 4 is by the 18 resistance R 18 ground connection, integrated transporting discharging LM339-1 forms voltage comparator.Integrated transporting discharging LM339-1 output pin 2 is by the 19 connect+5V of resistance R 19 power supply, and be connected to the anode of the 3rd diode D3, the negative electrode of the 3rd diode D3 connects the pin 1 of integrated reverser 74LS04-1, the pin 1 of 74LS04-1 is by the 32 resistance R 32 ground connection, and the pin 2 of 74LS04-1 is exported protect signal.
TEMP_2 is from the second analog temperature sensor,
i1 from current sensor in Fig. 4.TEMP_2 with
i1 detection and comparison circuit and TEMP_1 are similar, just do not repeat at this.Wherein the effect of diode D3, D4, D5 be prevent TEMP_1, TEMP_2,
i1 signal coupling.
As shown in Figure 6; by Fig. 5 generate PWM_1 ', PWM_2 ' that protect signal and DSP TMS320F28016 generate, PWM_3 ', PWM_4 ' four road signals through with door 74LS08 realize with logic after generate driving signal PWM_1, PWM_2, PWM_3, the PWM_4 of four power tubes of driving; IC12 realizes hardware lock and drives semiotic function; in the time there is retarder coil excess temperature, driving power device excess temperature or overcurrent; protect low level signal will drive signal by blocking four roads with door 74LS08, thereby realize the hardware protection to retarder control system.
As shown in Figure 7, control method retarder braking function main flow chart of the present invention, the concrete operations of control method are as follows:
The first step: judge whether retarder control function opens, start signal, from the GPIO12 pin step-down level in Fig. 2, if retarder control function is opened, enters abnormal signal and detects; If the unlatching of retarder control function do not detected, return.
Second step: detect and whether have abnormal signal input, abnormal signal is from the protect in Fig. 5, comprises that retarder coil temperature exceedes the upper limit, driving power device temperature, electric current and exceedes the upper limit.If detect abnormal signal, enter demonstration fault message, call sound and light alarm program, if do not detect, abnormal signal enters the judgement speed of a motor vehicle.
The 3rd step: detect the speed of a motor vehicle and whether be less than the restriction speed of a motor vehicle, if the speed of a motor vehicle is less than the restriction speed of a motor vehicle, stop retarder work, now buffer controller output driving pulse duty ratio is zero.If the speed of a motor vehicle is greater than the restriction speed of a motor vehicle, enters brake signal and detect.
The 4th step: detect and whether have brake pedal signal, have brake pedal signal if detected, call automatic control program.If brake pedal signal do not detected, detect no selection and manually control, if select manual control, enter and call manual control program, manually, stop retarder work if do not selected.
As shown in Figure 8, the present invention controls sub-process figure automatically, and the concrete operations of control method are as follows:
Step 2.1: the automatic control program that calls by Fig. 7 enters output retarder braking index signal.
Step 2.2: according to brake pedal pressure calculated signals retarder control PWM duty ratio.
Step 2.3: judge whether retarder coil temperature, driving power device temperature, electric current exceed set upper limit, if exceed the upper limit, reduce retarder coil pwm signal duty ratio, and enter the judgement of excess temperature/overcurrent and defence program.If do not exceed the upper limit, export pwm control signal.
Step 2.4: judge whether brake pedal pressure signal exists, if there is brake pedal pressure signal, judged whether ABS signal, if there is no brake pedal pressure signal, stop retarder work.
Step 2.5: judge whether ABS signal, if there is ABS signal, preserved current pwm signal, and locking signal output.If there is no ABS signal, again judge whether retarder coil temperature, driving power device temperature, electric current exceed set upper limit, if exceed the upper limit, return and reduce retarder coil pwm signal duty ratio, if do not exceed the upper limit, export pwm control signal.Increase pwm signal duty ratio according to the brake pedal pressure signal calculating.
Step 2.6: again judged whether ABS signal, if there is ABS signal, cycle detection, if not, recovers the pwm signal of preservation, and restoring signal output.
As shown in Figure 9, the present invention manually controls sub-process figure, and the concrete operations of control method are as follows:
Step 3.1: enter output services index signal by the manual control program of calling of Fig. 7.
Step 3.2: judge whether retarder coil temperature, driving power device temperature, electric current exceed set upper limit, if exceed the upper limit, reduce retarder coil pwm signal duty ratio, and enter the judgement of excess temperature/overcurrent and defence program.If do not exceed the upper limit, determine the duty ratio of output pwm control signal according to manual rotation coding.
Step 3.3: judged whether brake pedal pressure signal, if there is brake pedal pressure signal, detected whether there is ABS signal, if there is no brake pedal pressure signal, whether manually selected.
Step 3.4: judge whether ABS signal, if there is ABS signal, preserved current pwm signal, and locking signal output.If there is no ABS signal, judge whether retarder coil temperature, driving power device temperature, electric current exceed set upper limit.
Step 3.5: again judged whether ABS signal, if there is ABS signal, cycle detection, if not, recovers the pwm signal of preservation, and restoring signal output.
Step 3.6: judge whether to select manually, do not select manually to stop retarder work, if selected manually, again detect retarder coil temperature, driving power device temperature, electric current and whether exceed set upper limit.
Step 3.7: again judge whether retarder coil temperature, driving power device temperature, electric current exceed set upper limit, if exceed the upper limit, return and reduce retarder coil pwm signal duty ratio, if do not exceed the upper limit, determine the duty ratio of output pwm control signal according to manual rotation coding.
Claims (3)
1. an Intelligent controller for electric eddy current retarder, comprise microprocessor, it is characterized in that: also comprise manual rotation code switch input circuit, the first photoelectric isolating circuit, the second photoelectric isolating circuit, photoelectricity isolation drive power circuit, the first analog signal amplification and comparison circuit, retarder coil, the second analog signal amplification and comparison circuit, the 3rd analog signal amplification and comparison circuit, display screen; Described manual rotation code switch has switching function and coding output function, connects the input of described microprocessor by the first photoelectric isolating circuit; Vehicle speed signal, ABS signal connect the input of microprocessor by described the second photoelectric isolating circuit; Brake pedal signal amplifies by described the first analog signal the input that is connected microprocessor with comparison circuit; The output of microprocessor connects the input of described retarder coil by photoelectricity isolation drive power circuit, the driving power device current signal of photoelectricity isolation drive power circuit output amplifies by described the second analog signal the input that is connected microprocessor with comparison circuit simultaneously; Retarder coil temperature signal, driving power device temperature signal amplify the input that is connected microprocessor with comparison circuit by the 3rd analog signal; Display screen is connected with microprocessor;
Described microprocessor connects relay indicating light and sound light alarming circuit by the 3rd photoelectric isolating circuit, and described relay indicating light comprises buffer controller power supply indicator and on-position indicator light;
Described manual rotation code switch input circuit comprises rotary coding switch CI11-CT-V1Y22-LFACF, the pin E ground connection of CI11-CT-V1Y22-LFACF, and be connected with pin D by the first electric capacity (C1), pin D connects the first optocoupler (IC1) light-emitting diodes tube cathode, the first optocoupler (IC1) light-emitting diodes tube anode is by be connected to+5V of the first resistance (R1) power supply, and by the second electric capacity (C2) ground connection, the reception transistor emitter ground connection of the first optocoupler (IC1), collector electrode connects 5V power supply by the second resistance (R2), and be connected to 1 pin of the integrated 74LS07-1 of device in the same way, the first optocoupler (IC1) receives transistor collector and is connected by the 3rd electric capacity (C3) with emitter, 2 pin of the integrated 74LS07-1 of device in the same way connect 3.3V power supply by the 3rd resistance (R3), and output to microprocessor, the pin C ground connection of CI11-CT-V1Y22-LFACF, pin A connects the second optocoupler (IC2) light-emitting diodes tube cathode, the second optocoupler (IC2) light-emitting diodes tube anode is by the 4th be connected to+5V of resistance (R4) power supply, and by the 5th electric capacity (C5) ground connection, the second optocoupler (IC2) receives transistor emitter ground connection, collector electrode connects 5V power supply by the 5th resistance (R5), and be connected to 3 pin of the integrated 74LS07-2 of device in the same way, the collector and emitter that the second optocoupler (IC2) receives triode is connected by capacitor C 4, 4 pin of the integrated 74LS07-2 of device in the same way connect 3.3V power supply by the 6th resistance (R6), and output to microprocessor, the pin B of rotary coding switch connects the 3rd optocoupler (IC3) light-emitting diodes tube cathode, the 3rd optocoupler (IC3) light-emitting diodes tube anode is by the 7th be connected to+5V of resistance (R7) power supply, and by the 7th electric capacity (C7) ground connection, the 3rd optocoupler (IC3) receives transistor emitter ground connection, collector electrode connects 5V power supply by the 8th resistance (R8), and be connected to 5 pin of the integrated 74LS07-3 of device in the same way, the collector and emitter that the 3rd optocoupler (IC3) receives triode is connected by the 6th electric capacity (C6), 6 pin of the integrated 74LS07-3 of device in the same way connect 3.3V power supply by the 9th resistance (R9), and output to microprocessor.
2. Intelligent controller for electric eddy current retarder as claimed in claim 1, it is characterized in that: described microprocessor adopts DSP TMS320F28016,4 pin of the integrated 74LS07-2 of device in the same way connect the CAP1 pin of DSP TMS320F28016, and 6 pin of the integrated 74LS07-3 of device in the same way connect the CAP2 pin of DSP TMS320F28016; If enter the rising edge of the leading CAP2 signal of rising edge signal of the CAP1 signal of DSP TMS320F28016, be now defined as and be rotated in the forward, retarder braking force increases; If the rising edge of the rising edge hysteresis CAP2 signal of CAP1 signal, is now defined as reverse rotation, retarder braking force reduces.
3. Intelligent controller for electric eddy current retarder as claimed in claim 2, it is characterized in that: described photoelectricity isolation drive power circuit comprises the 4th optocoupler (IC4), integrated reverser 74LS04-1, MOSFET special driving chip UCC27321(IC5), integrated couple of MOSFET power tube IXTL2x240N055T(IC6), the 1 pin input of integrated reverser 74LS04-1 is from the driving signal PWM_1 of DSP TMS320F28016, 2 pin connect the 4th optocoupler (IC4) light-emitting diodes tube cathode, the 4th optocoupler (IC4) light-emitting diodes tube anode is connected to 3.3V power supply by the tenth resistance (R10), the 4th optocoupler (IC4) receives transistor emitter ground connection, between collector and emitter, connect the 8th electric capacity (C8), the 4th optocoupler (IC4) receives transistor collector simultaneously by the 11 resistance (R11) connection+10V power supply, and connect UCC27321(IC5) pin 2, described+10V power supply is by the 9th electric capacity (C9) ground connection, by the tenth electric capacity (C10) ground connection, UCC27321(IC5) pin 1 is connected described+10V power supply with pin 8, pin 4 and pin 5 ground connection, pin 6 and pin 7 are connected to IXTL2x240N055T(IC6 by the 12 resistance (R12)) pin G, IXTL2x240N055T(IC6) pin G is by the 13 resistance (R13) and voltage stabilizing didoe (D1) ground connection, IXTL2x240N055T(IC6) pin S_1 and pin S_2 ground connection, IXTL2x240N055T(IC6) pin D_1 and pin D_2 connect one end of retarder coil, another termination+24V power supply of retarder coil, the first analog temperature sensor connects IXTL2x240N055T(IC6), output detection signal TEMP_1 is driving power device temperature signal, the second analog temperature sensor connects retarder coil, output detection signal TEMP_2 is retarder coil temperature signal, current sensor access IXTL2x240N055T(IC6) loop that forms with ground, output detection signal
i1 is driving power device current signal, described TEMP_1, TEMP_2 and
i1 signal enters the second analog signal amplification and comparison circuit and the 3rd analog signal and amplifies and comparison circuit, output protection signal protect, guard signal protect respectively with DSP TMS320F28016 generate 4 road pwm signal PWM_1 ', PWM_2 ', PWM_3 ', PWM_4 ' through with door realize with logic after generate and drive four power tube Si roads to drive signal PWM_1, PWM_2, PWM_3, PWM_4, described and door is realized hardware lock and is driven semiotic function, when occurring retarder coil excess temperature, when driving power device excess temperature or overcurrent, protect low level signal will be by driving signal with door seal Suo Si road, thereby realize the hardware protection to retarder control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210075813.8A CN102594241B (en) | 2012-03-20 | 2012-03-20 | Intelligent controller for electric eddy current retarder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210075813.8A CN102594241B (en) | 2012-03-20 | 2012-03-20 | Intelligent controller for electric eddy current retarder |
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| CN103676676A (en) * | 2012-09-05 | 2014-03-26 | 洛阳市黄河软轴控制器股份有限公司 | Intelligent switching circuit for eddy current retarder |
| CN103035273B (en) * | 2012-12-12 | 2016-05-25 | 宁波高新区百瑞音响科技有限公司 | A kind of device that utilizes knob type digital code switch to switch audio file |
| CN103078297A (en) * | 2013-01-12 | 2013-05-01 | 华南理工大学 | Phase-shift controlled full-bridge single-cycle trip protection circuit and control method thereof |
| CN104802649B (en) * | 2015-03-17 | 2018-08-17 | 合肥协力仪表控制技术股份有限公司 | A kind of controller of current vortex retarder |
| CN109723316B (en) * | 2019-02-26 | 2023-11-03 | 亿腾科技（无锡）有限公司 | High-safety door machine safety chain control system |
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