CN1490191A - Assembled instrument step motor controller of vehicle and control mode thereof - Google Patents
Assembled instrument step motor controller of vehicle and control mode thereof Download PDFInfo
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- CN1490191A CN1490191A CNA031323332A CN03132333A CN1490191A CN 1490191 A CN1490191 A CN 1490191A CN A031323332 A CNA031323332 A CN A031323332A CN 03132333 A CN03132333 A CN 03132333A CN 1490191 A CN1490191 A CN 1490191A
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Abstract
A step motor controller and its control method for the combined meter panel of car feature that the microcontroller is used for acquiring and processing the signals about water temp, fuel oil, voltage, machine oil pressure, air pressure, speed, etc and the step motors are directly controlled to point the working state of car. Said controller is composed of two main control chips, a memory chip, several step motors, buzzer, several alarm LEDs, LCD and UART.
Description
Technical field
Automobile combination meter controllor for step-by-step motor of the present invention and mode thereof are that a kind of microcontroller that uses carries out the combination instrument that signal acquisition process and direct control stepping motor are indicated the automobile mode of operation, its structure is applicable to truck, passenger vehicle, car, self-propelled vehicle etc., is applicable to various vehicles technically.
Background technology
The domestic automobile instrument mainly is to adopt traditional mechanical structure at present, then mainly adopts the cross coil to drive pointer indication automobile mode of operation in a little electrons instrument.Traditional mechanical structure instrument exists cost height, unstable properties, complex structure, weak point such as attractive in appearance inadequately; And at present domestic part adopts the electronic instrument of cross coil mode, then exist pointing accuracy not high, easily produce accumulated error, weak points such as damage easily.
Summary of the invention
The objective of the invention is provides a kind of automobile combination meter controllor for step-by-step motor and mode thereof at above-mentioned weak point, adopt two microprocessors as core, gather the speed of running car, driving engine voltage, water temperature, fuel oil, machine oil is pressed, air pressure signal, after microprocessor processes, export, cancelled the method that traditional machinery and cross coil mode drive the pointer operation, adopt several stepping motors to indicate above-mentioned signal condition to reflect automobile operating state, can reach pointer operates steadily, indication accurately, do not produce accumulated error, and independent operating separately, can not produce and influence each other.
Automobile combination meter controllor for step-by-step motor and mode thereof take following scheme to realize: automobile combination meter controllor for step-by-step motor structure has controller housing, controller housing is provided with panel, and device has printed circuit board, electronic circuit, electronic devices and components in the controller housing.
Electronic circuit comprises two main control chips (microprocessor) MCU IC1, IC2, memory IC 3, several stepping motors, buzzer phone, several (light-emitting diodes) LED alarm lamp, Liquid Crystal Display (LCD) LCD, asynchronous serial bus UART.Main control chip IC1 links to each other with memory IC 3 by string line, main control chip IC1, IC2 link to each other with a plurality of stepping motor P by signal wire (SW) respectively, main control chip IC1 links to each other with LCDs LCD, light-emitting diode alarm lamp LED, buzzer phone EF by signal wire (SW) respectively, main control chip IC2 links to each other with light-emitting diode alarm lamp LED, buzzer phone EF by signal wire (SW) respectively, main control chip IC1, IC2 are connected with some signal wire (SW)s respectively, gather analog signal, digital signal, switching value signal.Analog signal comprises water temperature, fuel oil, voltage, engine oil pressure, air pressure, and digital signal comprises speed, engine speed, and the switching value signal comprises country beam, passing light, parking lamp, shaft space difference speed, energy brake.
Automobile combination meter controllor for step-by-step motor mode: main control chip IC1 calculates the mileage and the speed of vehicle operating by signal wire (SW) with the running velocity signal of gathering, and mileage accumulation is kept in the memory IC 3, show by LCD simultaneously, and calculate the pulse-width modulation PWM signal of required output, the stepping motor of while start-up control speed indicator, indicate current velocity amplitude, when detecting the speed of a motor vehicle and reach alarming value, connect buzzer phone and carry out auditory tone cues.
Main control chip with the engine rotational speed signal calculation engine rotating speed that collects, and calculates the pulse-width modulation PWM signal of required output by signal wire (SW), and the stepping motor of start the engine rotating speed pointer, indicates the rotating speed of present engine.
Main control chip IC1 goes out water temperature, the fuel oil calculated signals that collects current water temperature, amount of fuel and calculates the pulse-width modulation PWM signal of required output by signal wire (SW), and the stepping motor of start-up control water temperature pointer, indicate current water temperature, amount of fuel, when water temperature, when amount of fuel reaches limit value, start buzzer phone and carry out audible alarm, and start LED diode warning indication.
Main control chip IC2 by signal wire (SW) with the voltage that collects, oil level, front and back brake pressure A, air pressure B calculated signals goes out current voltage, oil level, front and back brake pressure A, air pressure B also calculates the pulse-width modulation PWM signal of required output, and start-up control voltage, oil level, front and back brake pressure A, the stepping motor of air pressure B pointer, indicate current voltage, oil level, front and back brake pressure A, air pressure B, work as voltage, oil level, front and back brake pressure A, when air pressure B reaches limit value, start buzzer phone and carry out audible alarm, and start LED diode warning indication.
Automobile combination meter controllor for step-by-step motor and mode thereof adopt the pulse-width modulation PWM technology, its principle is: change duty of ratio under cycle unmodified condition, promptly change the time of positive level in whole pulse, utilize differential and integral calculus principle between the voltage and current, under voltage unmodified situation, change the time that level is kept, can change the size of immediate current, thereby the electric current that produces different sizes in the coil of stepping motor comes the operation of drive stepping motor and drives pointer to rotate.When driving a plurality of stepping motor, adopt the co-operative control technology to reach in service unaffected mutually.It is characterized in that adopting the PWM technology can in very large range change dutycycle, the electric current on the motor coil can be sub-divided into very little variation, thereby can accurately change the indicating positions of stepping motor.Use two microprocessors (MCU) upd78F0828B as core, gather speed, engine speed, voltage, water temperature, fuel oil, engine oil pressure, the air pressure signal of automobile, after treatment output.And cancelled the method for the moving pointer operation of traditional mechanical type and cross line astragal, and adopt 8 stepping motors to indicate above-mentioned signal condition to reflect automobile operating state, adopt liquid crystal digital demonstration mileage, total kilometrage and time simultaneously.Use PWM (pulse width modulation pulse duration modulation) technology drive stepping motor in the invention, can reach pointer and operate steadily, indicate accurately, do not produce accumulated error; Adopt the co-operative control technology to control 8 stepping motors (every MCU drive 4) simultaneously simultaneously, and independent operating separately, can not produce and influence each other.
Description of drawings
The invention will be further described below with reference to accompanying drawing.
Fig. 1 is an automobile combination meter controllor for step-by-step motor scheme drawing.
Fig. 2 is automobile combination meter controllor for step-by-step motor and mode schematic circuit diagram thereof.
Fig. 3 is an automobile combination meter controllor for step-by-step motor mode main program flow chart.
Fig. 4 is an automobile combination meter controllor for step-by-step motor mode interrupt routine diagram of circuit.
The specific embodiment
With reference to accompanying drawing 1,2, automobile combination meter controllor for step-by-step motor structure has controller housing 1, controller housing is provided with panel 2, and volt meter 3, water thermometer 4, air-pressure gauge A5, air-pressure gauge B6, oil pressure gauge 7, fuel gage 8, speed gage 9, speed meter 10, warning indicator lamp 11 are housed on the panel 2.Volt meter 3, water thermometer 4, air-pressure gauge A5, air-pressure gauge B6, oil pressure gauge 7, fuel gage 8, speed gage 9, speed meter 10 pointers are driven by 8 stepping motor P1～P8 respectively.
Device has printed circuit board, electronic circuit, electronic devices and components in the controller housing.Electronic circuit comprises that electronic circuit comprises two main control chips (microprocessor) MCU IC1, IC2, memory IC 3, several stepping motors, buzzer phone, several (light-emitting diodes) LED alarm lamp, Liquid Crystal Display (LCD) LCD, asynchronous serial bus UART.Main control chip IC1 links to each other with memory IC 3 by string line, main control chip IC1, IC2 link to each other with a plurality of stepping motor P by signal wire (SW) respectively, main control chip IC1 links to each other with LCDs LCD, light-emitting diode alarm lamp LED, buzzer phone EF by signal wire (SW) respectively, main control chip IC2 links to each other with light-emitting diode alarm lamp LED, buzzer phone EF by signal wire (SW) respectively, main control chip IC1, IC2 are connected with some signal wire (SW)s respectively, gather analog signal, digital signal, switching value signal.Analog signal comprises water temperature, fuel oil, voltage, engine oil pressure, air pressure, and digital signal comprises speed, engine speed, and the switching value signal comprises country beam, passing light, parking lamp, shaft space difference speed, energy brake etc.
Main control chip IC1, IC2 adopt upd78F0828B, and memory IC 3 adopts 93C66, and stepping motor P1～P8 adopts SWITECX15.589.
With reference to accompanying drawing 2,3,4, automobile combination meter controllor for step-by-step motor mode: main control chip IC1 is by mileage and the speed of signal wire (SW) with the running velocity calculated signals vehicle operating of collection, and mileage accumulation is kept in the memory IC 3, show by LCD simultaneously, and calculate the pulse-width modulation PWM signal of required output, simultaneously the stepping motor of start-up control speed indicator indicate current velocity amplitude, and the connection buzzer phone carries out auditory tone cues when detecting the speed of a motor vehicle and reach alarming value.
Main control chip with the engine rotational speed signal calculation engine rotating speed that collects, and calculates the pulse-width modulation PWM signal of required output by signal wire (SW), and the stepping motor of start the engine rotating speed pointer, indicates the rotating speed of present engine.
Main control chip IC1 goes out water temperature, the fuel oil calculated signals that collects current water temperature, amount of fuel and calculates the pulse-width modulation PWM signal of required output by signal wire (SW), and the stepping motor of start-up control water temperature pointer, indicate current water temperature, amount of fuel, when water temperature, when amount of fuel reaches limit value, start buzzer phone and carry out audible alarm, and start LED diode warning indication.
Main control chip IC2 by signal wire (SW) with the voltage that collects, oil level, front and back brake pressure A, the air pressure a-signal calculates current voltage, oil level, front and back brake pressure A, air pressure B also calculates the pulse-width modulation PWM signal of required output, and start-up control voltage, oil level, front and back brake pressure A, the stepping motor of air pressure B pointer, indicate current voltage, oil level, front and back brake pressure A, air pressure B, work as voltage, oil level, front and back brake pressure A, when air pressure B reaches limit value, start buzzer phone and carry out audible alarm, and start LED diode warning indication.
Main control chip IC1, IC2 by signal wire (SW) with the switching value signal that collects, for example gear, steering indicating light signal, the corresponding indicator lamp of switch.
Claims (6)
1, a kind of automobile combination meter controllor for step-by-step motor, has controller housing, controller housing is provided with panel, device has printed circuit board, electronic circuit, electronic devices and components in the controller housing, it is characterized in that electronic circuit comprises two main control chip IC1, IC2, memory IC 3, several stepping motors, buzzer phone, several LED alarm lamps, Liquid Crystal Display (LCD) LCD, asynchronous serial bus UART; Main control chip IC1 links to each other with memory IC 3 by string line, main control chip IC1, IC2 link to each other with a plurality of stepping motor P by signal wire (SW) respectively, main control chip IC1 links to each other with LCDs LCD, light-emitting diode alarm lamp LED, buzzer phone EF by signal wire (SW) respectively, main control chip IC2 links to each other with light-emitting diode alarm lamp LED, buzzer phone EF by signal wire (SW) respectively, main control chip IC1, IC2 are connected with some signal wire (SW)s respectively, gather analog signal.
2, automobile combination meter controllor for step-by-step motor according to claim 1 is characterized in that analog signal comprises water temperature, fuel oil, voltage, engine oil pressure, air pressure.
3, automobile combination meter controllor for step-by-step motor according to claim 1 is characterized in that digital signal comprises speed, engine speed, and the switching value signal comprises country beam, passing light, parking lamp, shaft space difference speed, energy brake.
4, automobile combination meter controllor for step-by-step motor according to claim 1, it is characterized in that device has volt meter, water thermometer, air-pressure gauge A, air-pressure gauge B, oil pressure gauge, fuel gage, speed gage, speed meter on the controller panel, list index is respectively by step motor drive.
5, the described automobile combination meter controllor for step-by-step motor of claim 1 mode, it is characterized in that main control chip IC1 is by mileage and the speed of signal wire (SW) with the running velocity calculated signals vehicle operating that collects, and mileage accumulation is kept in the memory IC 3, show by LCD simultaneously, and calculate the pulse-width modulation PWM signal of required output, the stepping motor of while start-up control speed indicator, indicate current velocity amplitude, when detecting the speed of a motor vehicle and reach alarming value, connect buzzer phone and carry out auditory tone cues;
Main control chip with the engine rotational speed signal calculation engine rotating speed that collects, and calculates the pulse-width modulation PWM signal of required output by signal wire (SW), and the stepping motor of start the engine rotating speed pointer, indicates the rotating speed of present engine;
Main control chip IC1 goes out water temperature, the fuel oil calculated signals that collects current water temperature, amount of fuel and calculates the pulse-width modulation PWM signal of required output by signal wire (SW), and the stepping motor of start-up control water temperature pointer, indicate current water temperature, amount of fuel, when water temperature, when amount of fuel reaches limit value, start buzzer phone and carry out audible alarm, and start LED diode warning indication;
Main control chip IC2 by signal wire (SW) with the voltage that collects, oil level, front and back brake pressure A, air pressure B calculated signals goes out current voltage, oil level, front and back brake pressure A, air pressure B also calculates the pulse-width modulation PWM signal of required output, and start-up control voltage, oil level, front and back brake pressure A, the stepping motor of air pressure B pointer, indicate current voltage, oil level, front and back brake pressure A, air pressure B, work as voltage, oil level, front and back brake pressure A, when air pressure B reaches limit value, start buzzer phone and carry out audible alarm, and start LED diode warning indication.
6, automobile combination meter controllor for step-by-step motor mode according to claim 5, it is characterized in that main control chip IC1, IC2 by signal wire (SW) with the switching value signal that collects, the corresponding indicator lamp of switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03132333 CN1267297C (en) | 2003-08-15 | 2003-08-15 | Assembled instrument step motor controller of vehicle and control mode thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03132333 CN1267297C (en) | 2003-08-15 | 2003-08-15 | Assembled instrument step motor controller of vehicle and control mode thereof |
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| CN1490191A true CN1490191A (en) | 2004-04-21 |
| CN1267297C CN1267297C (en) | 2006-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 03132333 Expired - Fee Related CN1267297C (en) | 2003-08-15 | 2003-08-15 | Assembled instrument step motor controller of vehicle and control mode thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101290241B (en) * | 2007-04-19 | 2011-02-02 | 上海德科电子仪表有限公司 | Abnormal instance fuel meter signal processing method |
| CN101308034B (en) * | 2007-05-18 | 2011-08-31 | 德国Fev发动机技术有限公司 | Automobile display instrument |
| CN101949713B (en) * | 2009-07-10 | 2012-05-23 | 青岛东田汽车电子科技有限公司 | Diagnostic automobile combined instrument, instrument diagnostor and instrument diagnosing method |
| CN103153679A (en) * | 2010-10-07 | 2013-06-12 | 斯堪尼亚商用车有限公司 | Method and system for determining operating states of a motor vehicle |
| CN103231657A (en) * | 2013-05-14 | 2013-08-07 | 山东天海科技股份有限公司 | Intelligent multifunctional electric automobile instrument panel |
| CN104868877A (en) * | 2014-08-13 | 2015-08-26 | 北汽福田汽车股份有限公司 | Digital instrument stepper motor driving method and system |
| CN107769632A (en) * | 2017-11-22 | 2018-03-06 | 魏海峰 | A kind of brushless dc tachometer |
| CN107834916A (en) * | 2017-11-22 | 2018-03-23 | 魏海峰 | A kind of inexpensive velocity indicating device of brshless DC motor |
| CN107907704A (en) * | 2017-12-14 | 2018-04-13 | 杭州百隆电子有限公司 | Tachometric survey drive circuit and method |
| CN108248386A (en) * | 2018-01-31 | 2018-07-06 | 浙江杭派电动车有限公司 | A kind of electric vehicle instrument apparatus with acceleration instruction |
-
2003
- 2003-08-15 CN CN 03132333 patent/CN1267297C/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101290241B (en) * | 2007-04-19 | 2011-02-02 | 上海德科电子仪表有限公司 | Abnormal instance fuel meter signal processing method |
| CN101308034B (en) * | 2007-05-18 | 2011-08-31 | 德国Fev发动机技术有限公司 | Automobile display instrument |
| CN101949713B (en) * | 2009-07-10 | 2012-05-23 | 青岛东田汽车电子科技有限公司 | Diagnostic automobile combined instrument, instrument diagnostor and instrument diagnosing method |
| CN103153679A (en) * | 2010-10-07 | 2013-06-12 | 斯堪尼亚商用车有限公司 | Method and system for determining operating states of a motor vehicle |
| CN103231657A (en) * | 2013-05-14 | 2013-08-07 | 山东天海科技股份有限公司 | Intelligent multifunctional electric automobile instrument panel |
| CN104868877B (en) * | 2014-08-13 | 2017-11-24 | 北京车和家信息技术有限责任公司 | The driving method and system of digital instrument stepper motor |
| CN104868877A (en) * | 2014-08-13 | 2015-08-26 | 北汽福田汽车股份有限公司 | Digital instrument stepper motor driving method and system |
| CN107769632A (en) * | 2017-11-22 | 2018-03-06 | 魏海峰 | A kind of brushless dc tachometer |
| CN107834916A (en) * | 2017-11-22 | 2018-03-23 | 魏海峰 | A kind of inexpensive velocity indicating device of brshless DC motor |
| CN107907704A (en) * | 2017-12-14 | 2018-04-13 | 杭州百隆电子有限公司 | Tachometric survey drive circuit and method |
| CN107907704B (en) * | 2017-12-14 | 2024-02-02 | 杭州百隆电子有限公司 | Rotation speed measurement driving circuit and method |
| CN108248386A (en) * | 2018-01-31 | 2018-07-06 | 浙江杭派电动车有限公司 | A kind of electric vehicle instrument apparatus with acceleration instruction |
| CN108248386B (en) * | 2018-01-31 | 2023-08-29 | 浙江杭派电动科技股份有限公司 | Electric vehicle instrument device with acceleration indication |
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| Publication number | Publication date |
|---|---|
| CN1267297C (en) | 2006-08-02 |
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Effective date of registration: 20090828 Address after: No. 3, No. 1, building 12, Xinghua East Road, Zhucheng City, Shandong Province, No. 401 Patentee after: Che Xiuyu Address before: Block B, building 6, national building 163, richness Road, Jiangsu, Nanjing Patentee before: Jinling Ziguang System Engineering Co., Ltd., Nanjing City |
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