CN201254175Y - Electric eddy speed damper control device - Google Patents

Electric eddy speed damper control device Download PDF

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Publication number
CN201254175Y
CN201254175Y CNU2008200512372U CN200820051237U CN201254175Y CN 201254175 Y CN201254175 Y CN 201254175Y CN U2008200512372 U CNU2008200512372 U CN U2008200512372U CN 200820051237 U CN200820051237 U CN 200820051237U CN 201254175 Y CN201254175 Y CN 201254175Y
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China
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module
resistance
lcd
process unit
central process
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Expired - Fee Related
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CNU2008200512372U
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Chinese (zh)
Inventor
王桂棠
吴黎明
邓耀华
唐露新
汤秀春
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Guangdong University of Technology
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Guangdong University of Technology
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Priority to CNU2008200512372U priority Critical patent/CN201254175Y/en
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Abstract

The utility model provides an automobile eddy current brake controller which comprises a central processing unit(1), an AD module(2)used for collecting various control signals, a temperature module(3)used for measuring the temperature of the main body of the eddy current brake, a keyboard module(4)used for gear selection, a speed module(5)used for measuring the speed of the automobile, a drive module(6) used for driving two sets of power sources, including a self-generator and an accumulator, and a reducer coil; wherein the import ports of the central processing unit(1) are respectively connected with the AD module(2), the temperature module(3), the keyboard module(4) and the speed module(5); and the output ports of the central processing unit(1) are connected with the reducer coil(8)through the drive module(6). The automobile eddy current brake controller is simple in structure, small in volume and light in weight, and can automatically adjust the performance of the brake on different vehicles. The automobile eddy current brake controller is capable of extending the action range of the brake to the low-gear segment and capable of maintaining the moment of the brake to be supported by the ground. The automobile eddy current brake controller is unique in design and excellent in performance and is convenient and practical.

Description

Electric eddy speed damper control device
Technical field
The utility model is a kind of electric eddy speed damper control device that is used for automobile, belongs to the innovative technology of the used electric eddy speed damper control device of automobile.
Background technology
The shortcoming that the existing electric eddy speed damper control device that is used for automobile exists is a complex structure, volume is big, and quality is big, and is difficult to the work of automatically regulating retarder under different vehicle conditions, the zone of action of retarder is little, is difficult to keep retarder moment to be subjected to the ground-surface support.
The utility model content
The purpose of this utility model is to consider the problems referred to above and provides a kind of simple in structure, and volume is little, and quality is little, and the electric eddy speed damper control device of work that can the automatically regulating retarder under different vehicle conditions.The utility model can enlarge the zone of action of retarder to low speed segment, remains retarder moment and is subjected to the ground-surface support.
The technical solution of the utility model is: include central process unit, be used to gather various controls letters the AD module, be used to measure the current vortex retarder body temperature thermal module, be used for Keysheet module, the speed module that is used for measurement of vehicle speed that gear selects, Drive Module, the retarder coil that is used for the driving of spontaneous motor and two groups of power supplys of storage battery, wherein the input interface of central process unit is connected with AD module, thermal module, Keysheet module, speed module respectively, and the central process unit output interface is connected with the retarder coil by Drive Module.
The output interface of above-mentioned central process unit also is connected with to LCD power supply, backlight control and writes the LCD module of data and read data to LCD.
Above-mentioned AD module includes AD converter (U1), resistance (R1, R3, R4), adjustable resistance (R4), electric capacity (C1, C2, C3), wherein the input end of AD converter (U1) is connected with resistance (R3) and electric capacity (C3) respectively, resistance (R3) is connected with adjustable resistance (R4), and the mouth of AD converter (U1) is connected with resistance (R1) and electric capacity (C1) respectively and is connected with central process unit (1).
The said temperature module includes temperature sensor (U2), resistance (R72), electric capacity (C61), the pin 3 of temperature sensor (U2) is connected with power supply by resistance (R72), the pin 8 of temperature sensor (U2) is by electric capacity (C61) ground connection, and the pin 1,2,3 of temperature sensor (U2) is connected with central process unit (1).
Above-mentioned Keysheet module includes resistance, and ((button1~button8), wherein ((R111~R118) is connected with power supply and passes through resistance respectively (R119~R116) the input pin with central process unit (1) is connected button by resistance respectively for button1~button8) for R111~R1116) and button.
Above-mentioned speed module includes rotary coding dish, Randy Smyth pipe (U3), red lotus root to pipe (U4) and peripheral resistance (R212 thereof, R215, R216, R218) and electric capacity (C6, C7), the rotary coding dish outputs to central process unit (1) after by red lotus root the tachometer pulse of managing (U4) generation being input to Randy Smyth pipe (U3) shaping.
Above-mentioned Drive Module includes resistance (R71, R70, R69, R68, R67, R66), diode (D8, D7), aerotron (Q5, Q8), light every (U14, U15), power tube (Q6, Q7), when central process unit is exported high level by PWM_IN_A, aerotron Q5 conducting, and then drive the U14 conducting, thereby the Q6 input end is dragged down conducting output, and promptly electric current flows through Q6 by VCC12V and outputs to coil by PWM_OUT_12.Two PWM inputs of PWM_IN_A and PWM_IN_B are respectively the drivings that is used for spontaneous motor and two groups of power supplys of storage battery.
Above-mentioned LCD module comprises resistance (R60, R61, R62), electric capacity (C59), liquid crystal (LCD), central process unit (1) will data presented passes to liquid crystal (LCD) by parallel line to carry out content and shows, the Kai Heguan that LCD_EN control LCD shows, the LCD demonstration is opened when being the LCD_EN high level, and LCD forbids showing C59 filtering high-frequency harmonic during low level.
Above-mentioned central process unit is chip EP1C6Q240C8.
The utility model because adopt AD module, the thermal module that is used to measure the current vortex retarder body temperature include central process unit, to be used to gather various controls letters, be used for Keysheet module, the speed module that is used for measurement of vehicle speed that gear selects, the structure of the Drive Module of the driving that is used for spontaneous motor and two groups of power supplys of storage battery, it is simple in structure, volume is little, quality is little, and can automatically regulating under different vehicle conditions the work of retarder.The utility model can enlarge the zone of action of retarder to low speed segment, remains retarder moment and is subjected to the ground-surface support.The utility model is that a kind of design is ingenious, function admirable, convenient and practical electric eddy speed damper control device.
Description of drawings
Fig. 1 is a functional block diagram of the present utility model;
Fig. 2 is the circuit diagram of the utility model AD module;
Fig. 3 is the circuit diagram of the utility model thermal module;
Fig. 4 is the circuit diagram of the utility model Keysheet module;
Fig. 5 is the circuit diagram of the utility model speed module;
Fig. 6 is the circuit diagram of the utility model Drive Module;
Fig. 7 is the circuit diagram of the utility model LCD module;
Fig. 8 is the diagram of circuit of the utility model initialization main program;
Fig. 9 is the diagram of circuit of the utility model drive program;
Figure 10 is the diagram of circuit of the utility model constant sped control.
The specific embodiment
Embodiment:
Structural representation of the present utility model such as Fig. 1,2,3, shown in 4, include central process unit 1, be used to gather the AD module 2 of various control letters, be used to measure the thermal module 3 of current vortex retarder body temperature, be used for the Keysheet module 4 that gear is selected, the speed module 5 that is used for measurement of vehicle speed, the Drive Module 6 that is used for the driving of spontaneous motor and two groups of power supplys of storage battery, retarder coil 8, wherein the input interface of central process unit 1 respectively with AD module 2, thermal module 3, Keysheet module 4, speed module 5 connects, and the output interface of central process unit 1 is connected with retarder coil 8 by Drive Module 6.
In the present embodiment, the output interface of above-mentioned central process unit 1 also is connected with to LCD power supply, backlight control and writes the LCD module 7 of data and read data to LCD.
In the present embodiment, above-mentioned AD module 2 includes AD converter U1, resistance R 1, R3, R4, adjustable resistance R4, capacitor C 1, C2, C3, wherein the input end of AD converter U1 is connected with resistance R 3 and capacitor C 3 respectively, resistance R 3 is connected with adjustable resistance R4, and the mouth of AD converter U1 is connected with resistance R 1 and capacitor C 1 respectively and is connected with central process unit 1.
In the present embodiment, said temperature module 3 includes temperature sensor U1, resistance R 72, capacitor C 61, the pin 3 of temperature sensor U1 is connected with power supply by resistance R 72, the pin 8 of temperature sensor U1 is by capacitor C 61 ground connection, and the pin 1,2,3 of temperature sensor U1 is connected with central process unit 1.Pin 3 is LM75_OS, and LM75_OS is a chip selection signal, temperature sensor work during high level, forbidding temperature sensor during low level; Pin 1,2 is respectively I2C_SCL and I2C_SDA, and temperature sensor passes to central process unit by pin 1I2C_SCL and I2C_SDA with data, use be I2C communication protocol.
Above-mentioned Keysheet module 4 includes resistance R 1~R16 and button button1~button8, and wherein button button1~button8 is connected with power supply by resistance R 1~R8 respectively and passes through resistance R 9~R16 and be connected with the input pin of central process unit 1 respectively.Above-mentioned speed module 5 includes rotary coding dish, Randy Smyth pipe U3, red lotus root to pipe U4 and peripheral resistance R 212 thereof, R215, R216, R218 and capacitor C 6, C7 outputs to central process unit 1 after the tachometer pulse that the rotary coding dish produces pipe U4 by red lotus root is input to Randy Smyth pipe U3 shaping.When button is pressed level is dragged down, central process unit 1 is regarded low level as input action, carries out respective handling then.
Above-mentioned Drive Module 6 includes resistance R 71, R70, R69, R68, R67, R66, diode D8, D7, aerotron Q5, Q8, light be every U14, U15, power tube Q6, Q7, when central process unit is exported high level by PWM_IN_A, aerotron Q5 conducting, and then drive the U14 conducting, thereby the Q6 input end is dragged down conducting output, and two PWM inputs of PWM_IN_A and PWM_IN_B are respectively the drivings that is used for spontaneous motor and two groups of power supplys of storage battery.
Above-mentioned LCD module 7 comprises resistance R 60, R61, R62, capacitor C 59, liquid crystal LCD, central process unit 1 will data presented passes to liquid crystal LCD by parallel line to carry out content and shows, LCD_EN is the control bit that enables of LCD demonstration, LCD shows effectively during high level, and LCD forbids showing C59 filtering high-frequency harmonic during low level.When the retarder coil broke down, the liquid crystal LCD of LCD module showed relevant information, submitted the chaufeur maintenance to, started defencive function simultaneously.Coil fault can be divided into three kinds: open circuit, short circuit, overload; Controller is defined as A, B, C, D respectively with four maps, when open circuit appears in a certain road (as the A road), promptly shows A road open circuit, shows in turn when the multichannel fault; When certain short out road or overload fault, promptly close this road (all the other do not produce fault coil normal operation), and certain short out passing by of demonstration is carried protection on LCD display.
Above-mentioned central process unit 1 is chip EP1C6Q240C8.Chip EP1C6Q240C8 has 5980 logical blocks, the 92160bit on-chip memory, 2 phaselocked loops, EP1C6Q240C8 are the cores of total system, mainly are responsible for collection, the calculating of controlling quantity, the realization of algorithm, the modulation of control waveform and the output of controlling quantity etc. of signal.
8 altogether of the stator winding coils of current vortex retarder are divided into 4 groups, and per 2 are cascaded, and give power supply respectively by 4 high-power switch tubes respectively.In the working process, 4 pipes are opened according to required exciting current value, successively to reduce the switching loss of switching valve under the control of controller.Keyboard, liquid crystal display reach and the effect of upper computer communication module is man-machine communication's interface.The ideal operation parameter of retarder and vehicle can be preestablished by keyboard and upper PC, the working parameter of retarder can be monitored by liquid crystal display.Also design the circuit such as defencive function that pair voltage conversion circuit, temperature detection, current-limiting circuit, peripheral hardware driving circuit, brake lamp and the alarm loop of controller power supply, short circuit, overtemperature are arranged in the simultaneity factor.
Software section of the present utility model is made up of initialization main program, interrupt service subroutine, temperature survey subprogram, velocity measurement subprogram, current measurement subprogram, display driver, keyboard, signal procedure, fault diagnosis module, fuzzy algorithm module etc.Wherein the initialization main program be used for interrupting, the initial setting up of AD, liquid crystal etc., interrupt as closing, stop house dog, remove interrupt identification etc.; Then program enters major cycle.At first read temperature,, then forbid PWM output, then power greater than about 5km/h by spontaneous motor as if speed if temperature is too high, otherwise by storage battery power supply, as shown in Figure 8.
Liquid crystal display is the mode of operation that shows retarder, and important parameter such as temperature, voltage etc. are shown to the chaufeur reference.TG12864E is a kind of graphic dot matrix Liquid Crystal Display (LCD), and it can also can tandem-type connection drive with connection in parallel, and the utility model takes method in parallel to drive.Drive program divides and shows main program and send subprogram that its control flow chart as shown in Figure 9.The utility model constant sped control at first detects actual speed, compares and adjust PWM output then with setting speed, up to actual speed in certain error limit in equal setting speed.
Principle of work of the present utility model is as follows: the working process of system is as follows: as manual or foot feed signal input, and when speed per hour is higher than 5km/h, controller can export corresponding electric current for the power tube base stage according to the size of input, and on Liquid Crystal Display (LCD) display working condition.When chaufeur was set a certain speed, this velocity amplitude was stored, and by the EP1C6Q240C8 generation cycle fix, the square wave of EDM Generator of Adjustable Duty Ratio, this square-wave voltage is as the driving voltage of power tube base stage, the unlatching of power controlling pipe and shutoff.Thereby produce pulsating voltage on the excitation coil of current vortex retarder, when the dutycycle mode that drives square wave changed, the average voltage in the excitation coil was changed, so the lock torque of retarder is also changed.The initial current of the excitation coil of retarder is determined by the size of brake-pipe pressure, subsequently they and the velocity ratio of setting is calculated deviation, calculates best controlling quantity by FUZZY ALGORITHMS FOR CONTROL then, the desirable speed of a motor vehicle that vehicle stabilization is being set.The effect of current sensor and temperature sensor is electric current and the temperature that detects retarder, realizes constant current control and the maximum operating temperature of retarder is limited.

Claims (9)

1, a kind of electric eddy speed damper control device, it is characterized in that including central process unit (1), be used to gather the AD module (2) of various control letters, be used to measure the thermal module (3) of current vortex retarder body temperature, be used for the Keysheet module (4) that gear is selected, the speed module (5) that is used for measurement of vehicle speed, the Drive Module (6) that is used for the driving of spontaneous motor and two groups of power supplys of storage battery, retarder coil (8), wherein the input interface of central process unit (1) respectively with AD module (2), thermal module (3), Keysheet module (4), speed module (5) connects, and the output interface of central process unit (1) is connected with retarder coil (8) by Drive Module (6).
2, electric eddy speed damper control device according to claim 1, the output interface that it is characterized in that above-mentioned central process unit (1) also are connected with to LCD power supply, backlight control and write the LCD module (7) of data and read data to LCD.
3, electric eddy speed damper control device according to claim 1, it is characterized in that above-mentioned AD module (2) includes AD converter (U1), resistance (R1, R3, R4), adjustable resistance (R4), electric capacity (C1, C2, C3), wherein the input end of AD converter (U1) is connected with resistance (R3) and electric capacity (C3) respectively, resistance (R3) is connected with adjustable resistance (R4), and the mouth of AD converter (U1) is connected with resistance (R1) and electric capacity (C1) respectively and is connected with central process unit (1).
4, electric eddy speed damper control device according to claim 1, it is characterized in that said temperature module (3) includes temperature sensor (U2), resistance (R72), electric capacity (C61), the pin 3 of temperature sensor (U2) is connected with power supply by resistance (R72), the pin 8 of temperature sensor (U2) is by electric capacity (C61) ground connection, and the pin 1,2,3 of temperature sensor (U2) is connected with central process unit (1).
5, electric eddy speed damper control device according to claim 1, ((button1~button8), wherein ((R111~R118) is connected with power supply and passes through resistance respectively (R119~R116) the input pin with central process unit (1) is connected button by resistance respectively for button1~button8) for R111~R1116) and button to it is characterized in that including resistance by above-mentioned Keysheet module (4).
6, electric eddy speed damper control device according to claim 1, it is characterized in that above-mentioned speed module (5) includes rotary coding dish, Randy Smyth pipe (U3), red lotus root to pipe (U4) and peripheral resistance (R212 thereof, R215, R216, R218) and electric capacity (C6, C7), the rotary coding dish outputs to central process unit (1) after by red lotus root the tachometer pulse of managing (U4) generation being input to Randy Smyth pipe (U3) shaping.
7, electric eddy speed damper control device according to claim 1, it is characterized in that above-mentioned Drive Module (6) includes resistance (R71, R70, R69, R68, R67, R66), diode (D8, D7), aerotron (Q5, Q8), light is every (U14, U15), power tube (Q6, Q7), when central process unit during by PWM_IN_A output high level, aerotron Q5 conducting, and then drive the U14 conducting, thus the Q6 input end is dragged down conducting output, and promptly electric current flows through Q6 by VCC12V and outputs to coil by PWM_OUT_12.Two PWM inputs of PWM_IN_A and PWM_IN_B are respectively the drivings that is used for spontaneous motor and two groups of power supplys of storage battery.
8, electric eddy speed damper control device according to claim 1, it is characterized in that above-mentioned LCD module (7) comprises resistance (R60, R61, R62), electric capacity (C59), liquid crystal (LCD), central process unit (1) will data presented passes to liquid crystal (LCD) by parallel line to carry out content and shows, the Kai Heguan that LCD_EN control LCD shows, and promptly LCD shows and opens during the LCD_EN high level, LCD forbids showing C59 filtering high-frequency harmonic during low level.
9, electric eddy speed damper control device according to claim 1 is characterized in that above-mentioned central process unit (1) is chip EP1C6Q240C8.
CNU2008200512372U 2008-07-24 2008-07-24 Electric eddy speed damper control device Expired - Fee Related CN201254175Y (en)

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CNU2008200512372U CN201254175Y (en) 2008-07-24 2008-07-24 Electric eddy speed damper control device

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101839782A (en) * 2010-06-01 2010-09-22 深圳市特尔佳科技股份有限公司 Eddy current retarder test system and method thereof
CN109017328A (en) * 2018-08-23 2018-12-18 宋青健 A kind of current vortex retarder being dynamically adapted

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101839782A (en) * 2010-06-01 2010-09-22 深圳市特尔佳科技股份有限公司 Eddy current retarder test system and method thereof
CN109017328A (en) * 2018-08-23 2018-12-18 宋青健 A kind of current vortex retarder being dynamically adapted
CN109017328B (en) * 2018-08-23 2021-08-24 合肥宝妈机械设计有限公司 Eddy current retarder capable of being dynamically adjusted

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C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090610

Termination date: 20100724