CN201352125Y - Stepping motor automobile combined instrument - Google Patents
Stepping motor automobile combined instrument Download PDFInfo
- Publication number
- CN201352125Y CN201352125Y CNU2009200012982U CN200920001298U CN201352125Y CN 201352125 Y CN201352125 Y CN 201352125Y CN U2009200012982 U CNU2009200012982 U CN U2009200012982U CN 200920001298 U CN200920001298 U CN 200920001298U CN 201352125 Y CN201352125 Y CN 201352125Y
- Authority
- CN
- China
- Prior art keywords
- stepper motor
- stepping motor
- electrically connected
- microprocessor
- driving circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000004973 liquid crystal related substance Substances 0.000 claims description 14
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 239000002826 coolant Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000010705 motor oil Substances 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 230000011218 segmentation Effects 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Landscapes
- Instrument Panels (AREA)
- Indicating Measured Values (AREA)
Abstract
The utility model provides a stepping motor automobile combined instrument which comprises a microprocessor, a stepping motor drive circuit, a stepping motor and an indicating instrument, wherein the microprocessor is electrically connected with the stepping motor drive circuit for collecting signals of automobiles which need to be indicated and sending corresponding electric impulses to the stepping motor drive circuit according to the signals, the stepping motor drive circuit is electrically connected with the stepping motor for driving the stepping motor to rotate in a setting angle in a presetting mode according to the electric impulses, and the stepping motor drives an indicating needle of the indicating instrument to rotate correspondingly. The stepping motor automobile combined instrument of the utility model employs the stepping motor which drives the indicating needle of the indicating instrument and uses a subdivision driver as a stepping motor driver so that the indicating needle of the stepping motor automobile combined instrument can run smoothly, firmly and continuously and indicate accurately, with short indicating response time and low operation noise.
Description
Technical field
The utility model relates to a kind of automobile combination meter, relates in particular to a kind of stepper motor automobile combination meter.
Background technology
Automobile instrument mainly adopts traditional physical construction at present, also has the moving magnetic filed of use to drive indication automobile instrument duty as pointer in a little electrons instrument; Traditional mechanical type instrument exists cost height, unstable properties, processed complex, defective such as not attractive in appearance; And present part moving magnetic filed driving instrument, there are not high, the defectives such as consistance is bad, easy damage of pointing accuracy.And there is the shortcoming that the gauge pointer motion is discontinuous, the corresponding signal pace of change is slow and the stepper motor running noises is bigger in existing stepper motor automobile combination meter.
Summary of the invention
Fundamental purpose of the present utility model is to provide a kind of stepper motor automobile combination meter, its pointer operates steadily, continuously and indication accurately.
In order to achieve the above object, the utility model provides a kind of stepper motor automobile combination meter, and it comprises microprocessor, stepper motor driving circuit, stepper motor and indicating instrument, wherein,
Described microprocessor is electrically connected with described stepper motor driving circuit, is used to gather the signal of the vehicle that needs indication, and sends corresponding electric pulse according to this signal to described stepper motor driving circuit;
Described stepper motor driving circuit is electrically connected with described stepper motor, is used for driving described stepper motor rotates setting by the mode of setting angle according to described electric pulse;
Described stepper motor drives the corresponding rotation of pointer of described indicating instrument.
Preferably, described stepper motor driving circuit is a subdivision driver.
Preferably, described microprocessor comprises time control unit and processing unit;
Described time control unit is electrically connected with described processing unit, be used for every a schedule time to described processing unit sending controling instruction;
Described processing unit is electrically connected with described stepper motor driving circuit, when the steering order of receiving from described time control unit, and the signal of the need indication of collection vehicle, and send corresponding electric pulse to described stepper motor driving circuit according to this signal.
Preferably, stepper motor automobile combination meter described in the utility model also comprises liquid crystal driver and liquid crystal display, and described liquid crystal driver is electrically connected with described processor and described liquid crystal display respectively.
Preferably, described microprocessor comprises processing unit and clock circuit, and described clock circuit is electrically connected with described processing unit, and described processing unit is electrically connected with described stepper motor driving circuit.
Preferably, stepper motor automobile combination meter described in the utility model also comprises universal asynchronous serial interface and hummer, and described universal asynchronous serial interface is electrically connected with a described microprocessor and a PC respectively, and described hummer and described microprocessor are electrically connected; Described microprocessor is connected with described PC by described universal asynchronous serial interface, internal data is configured, described processor is judged input signal according to configuration information, if described input signal is controlled described buzzer warning when satisfying alert if.
Preferably, stepper motor automobile combination meter described in the utility model also comprises the signal indicating member, and described signal indicating member is connected with described microprocessor.
Compared with prior art, stepper motor automobile combination meter described in the utility model adopts stepper motor to drive the pointer of instrument, and adopted subdivision driver as stepper motor driver, make that the pointer of stepper motor automobile combination meter described in the utility model operates steadily, continuously, indication accurately, the indication response time is short and running noises is low.
Reference numeral
Fig. 1 is the structured flowchart of stepper motor automobile combination meter described in the utility model;
Fig. 2 is the dial plate synoptic diagram of the described stepper motor automobile combination meter of the utility model one embodiment;
Fig. 3 is the structured flowchart of the automatically controlled part of the described stepper motor automobile combination meter of the utility model one embodiment;
Fig. 4 is the main program block diagram of the system control program of the described stepper motor automobile combination meter of the utility model one embodiment;
Fig. 5 is the interrupt routine block diagram of the system control program of the described stepper motor automobile combination meter of the utility model one embodiment.
Embodiment
The utility model does not adopt traditional mechanical type or moving magnetic filed to drive the indicating mode of gauge pointer, and has been to use the type of drive of stepper motor as gauge pointer.
Stepper motor automobile combination meter described in the utility model, gather travel speed, engine speed, battery voltage, engine oil pressure, engine coolant temperature, fuel oil, air pressure signal and the switching value signal of automobile, after the process microprocessor is handled, send corresponding electric pulse to stepper motor driver, described stepper motor driver rotates by the direction of setting according to this electric pulse drive stepping motor, thereby stepper motor drives the also corresponding rotation of pointer of indicating instrument.
As shown in Figure 1, stepper motor automobile combination meter described in the utility model comprises microprocessor 11, stepper motor driving circuit 12, stepper motor 13 and indicating instrument 14,
Described microprocessor 11 is electrically connected with described stepper motor driving circuit 12, is used to gather the signal of the vehicle that needs indication, and sends corresponding electric pulse according to this signal to described stepper motor driving circuit 12;
Described stepper motor driving circuit 12 is electrically connected with described stepper motor 13, is used for driving described stepper motor rotates setting by the mode of setting angle according to described electric pulse;
Described stepper motor 13 drives the corresponding rotation of pointer of described indicating instrument 14.
According to a kind of embodiment, described stepper motor driving circuit 12 is a subdivision driver, has adopted the micro-stepping driving of stepping motor technology;
Be a kind of electronic damping technology on the micro-stepping driving of stepping motor technical spirit, its fundamental purpose is to improve the running accuracy of stepper motor, realizes the high-precision fine of stepper motor step angle; Secondly, the attach feature of micro-stepping driving of stepping motor technology is the low-frequency vibration that weakens or eliminate stepper motor; Low-frequency vibration is the inherent characteristic of stepper motor, and segmentation is an optimal path of eliminating it.
The micro-stepping driving of stepping motor technology is produced by the phase current of accurately controlling motor by stepper motor driver, and is irrelevant with stepper motor.
After having adopted the subdivision driver drive stepping motor, the step angle of stepper motor has diminished.For example, when if stepper motor driver is operated in 12 finely divided states, its step angle only be " the intrinsic step angle of stepper motor " 1/12nd, just: when stepper motor driver is operated in the synchronizing state that does not have segmentation, every electric pulse of microprocessor, stepper motor rotate 12 degree; And use when being operated in the subdivision driver of 12 finely divided states, stepper motor only can rotate 1 degree.
According to another kind of embodiment, described microprocessor 11 comprises time control unit and processing unit;
Described time control unit is electrically connected with described processing unit, be used for every a schedule time to described processing unit sending controling instruction;
Described processing unit, be electrically connected with described stepper motor driving circuit 12, when the steering order of receiving from described time control unit, the signal of the need indication of collection vehicle, and send corresponding electric pulse to described stepper motor driving circuit 12 according to this signal.
Owing to adopted the time of 111 pairs of stepper drive of described time control unit to control, therefore can further improve the response speed of stepper motor and rotate continuity, reduced simultaneously the rotational noise of stepper motor significantly, make that the pointer of stepper motor automobile combination meter described in the utility model operates steadily, continuously, indication accurately, the indication response time is short and running noises is low.
As shown in Figure 2, the dial plate synoptic diagram of the described stepper motor automobile combination meter of the utility model one embodiment; As shown in Figure 3, the structured flowchart of the automatically controlled part of the described stepper motor automobile combination meter of the utility model one embodiment;
As shown in Figure 4, the main program block diagram of the system control program of the described stepper motor automobile combination meter of the utility model one embodiment; As shown in Figure 5, the interrupt routine block diagram of the system control program of the described stepper motor automobile combination meter of the utility model one embodiment; The system control program of the described stepper motor automobile combination meter of the utility model one embodiment comprises master routine and interrupt routine, and described master routine mainly is responsible for total system is carried out initialization, the semaphore that collects carried out the output and the administrative alert operation of computing and processing, control information; Described interrupt routine mainly is responsible for the segmentation driven management of control step motor.
As shown in Figure 2, comprise Battery Voltage Meter 1, oil manometer 2, engine coolant temperature gauge 3, meter key 4, fuel gauge 5, rain glass 6, rain glass 7, LCDs 8, speedometer 9, signal indicating gauge 10, engine speed table 101 and LCDs 102 on the dial plate of the described stepper motor automobile combination meter of the utility model one embodiment.
As shown in Figure 3, the electric control part branch of the described stepper motor automobile combination meter of the utility model one embodiment comprises microprocessor, stepper motor driver, stepper motor, liquid crystal display drive circuit, LCDs, universal asynchronous serial interface UART, hummer and signal indicating member;
Wherein, described stepper motor driver is two, and described stepper motor is 8, and each stepper motor drives four stepper motors respectively;
Described liquid crystal display drive circuit is two, and described LCDs is two, and each liquid crystal display drive circuit is electrically connected with a LCDs respectively, to drive this LCDs; Described liquid crystal display drive circuit is electrically connected with described microprocessor respectively;
Described microprocessor, model are PIC18F452, and it gathers simulating signal, digital signal and the switching value signal of input, and wherein, described simulating signal comprises battery voltage, engine oil pressure, engine coolant temperature, oil mass and air pressure signal; Described digital signal comprises the rotating speed and the Vehicle Speed signal of engine; Described switching value signal is the input quantity of some signals that need show by described signal indicating member;
Described microprocessor obtains the travel speed of current vehicle and the related data of accumulative total distance travelled by gathering and handle the rate signal of vehicle; Described microprocessor is stored in the accumulative mileage of vehicle earlier in the storer of described microprocessor internal, is shown to then on the corresponding LCDs; Described microprocessor is converted to electric pulse with current vehicle speed signal, and this electric pulse is sent to described stepper motor driver, described stepper motor driver is according to the stepper motor of the pointer of the described speedometer 9 of this electric pulse driving drive, and the pointer that makes this stepper motor drive described speedometer 9 runs to the indicating positions of appointment according to the predefined method of operation;
Described microprocessor acquisition engine tach signal, calculate and handle the current engine speed information that obtains, and be converted into corresponding electric pulse, and this electric pulse is sent to described stepper motor driver, described stepper motor driver makes this stepper motor drive described engine speed table 101 runs to appointment according to the predefined method of operation indicating positions according to the stepper motor of the pointer of the described engine speed table 101 of this electric pulse driving drive;
The information that described microprocessor obtains current battery voltage, engine oil pressure, engine coolant temperature, oil mass and two-way air pressure by collection and processing to simulating signal, and each information translation become to be sent to the electric pulse of described stepper motor driver, control each stepper motor and run to correspondence position according to predefined mode;
Described microprocessor comprises processing unit and clock circuit, described processing unit reads the current time of described clock circuit record, and the described current time is converted to control signal corresponding, described control signal is sent to described liquid crystal driver, described liquid crystal driver drives described LCDs according to this control signal, makes the described current time be shown on the described LCDs.
Described signal indicating member is connected with described microprocessor, comprises a plurality of light emitting diodes, is used to indicate the semaphore of automobile relevant information; Described microprocessor also is responsible for gathering the part input of described signal indicating member, and the relevant output of control.
Described microprocessor is electrically connected with described hummer, and described microprocessor can be connected with PC by universal asynchronous serial interface UART, by special software internal data is configured, described microprocessor can be judged input signal according to configuration information, if described input signal will be controlled buzzer warning when satisfying alert if.
More than explanation is just illustrative for the utility model; and it is nonrestrictive; those of ordinary skills understand; under the situation of the spirit and scope that do not break away from claims and limited; can make many modifications; change or equivalence, but all will fall in the protection domain of the present utility model.
Claims (7)
1, a kind of stepper motor automobile combination meter is characterized in that, it comprises microprocessor, stepper motor driving circuit, stepper motor and indicating instrument, wherein,
Described microprocessor is electrically connected with described stepper motor driving circuit, is used to gather the signal of the vehicle that needs indication, and sends corresponding electric pulse according to this signal to described stepper motor driving circuit;
Described stepper motor driving circuit is electrically connected with described stepper motor, is used for driving described stepper motor rotates setting by the mode of setting angle according to described electric pulse;
Described stepper motor drives the corresponding rotation of pointer of described indicating instrument.
2, stepper motor automobile combination meter according to claim 1 is characterized in that, described stepper motor driving circuit is a subdivision driver.
3, stepper motor automobile combination meter according to claim 1 and 2 is characterized in that, described microprocessor comprises time control unit and processing unit;
Described time control unit is electrically connected with described processing unit, be used for every a schedule time to described processing unit sending controling instruction;
Described processing unit is electrically connected with described stepper motor driving circuit, when the steering order of receiving from described time control unit, and the signal of the need indication of collection vehicle, and send corresponding electric pulse to described stepper motor driving circuit according to this signal.
4, stepper motor automobile combination meter according to claim 1 and 2 is characterized in that, it also comprises liquid crystal driver and liquid crystal display, and described liquid crystal driver is electrically connected with described processor and described liquid crystal display respectively.
5, stepper motor automobile combination meter according to claim 4, it is characterized in that, described microprocessor comprises processing unit and clock circuit, and described clock circuit is electrically connected with described processing unit, and described processing unit is electrically connected with described stepper motor driving circuit.
6, stepper motor automobile combination meter according to claim 5, it is characterized in that, it also comprises universal asynchronous serial interface and hummer, and described universal asynchronous serial interface is electrically connected with a described microprocessor and a PC respectively, and described hummer and described microprocessor are electrically connected; Described microprocessor is connected with described PC by described universal asynchronous serial interface, internal data is configured, described processor is judged input signal according to configuration information, if described input signal is controlled described buzzer warning when satisfying alert if.
7, stepper motor automobile combination meter according to claim 6 is characterized in that, it also comprises the signal indicating member, and described signal indicating member is connected with described microprocessor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200012982U CN201352125Y (en) | 2009-02-11 | 2009-02-11 | Stepping motor automobile combined instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200012982U CN201352125Y (en) | 2009-02-11 | 2009-02-11 | Stepping motor automobile combined instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201352125Y true CN201352125Y (en) | 2009-11-25 |
Family
ID=41375513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200012982U Expired - Lifetime CN201352125Y (en) | 2009-02-11 | 2009-02-11 | Stepping motor automobile combined instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201352125Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102519511A (en) * | 2011-12-23 | 2012-06-27 | 埃泰克汽车电子(芜湖)有限公司 | Indication verification apparatus of automobile instrument and verification method thereof |
| CN102843082A (en) * | 2012-09-06 | 2012-12-26 | 山东省科学院自动化研究所 | Self-adaptive control algorithm of pointer of stepper motor type motormeter |
| CN102843083A (en) * | 2012-09-18 | 2012-12-26 | 天津市亚安科技股份有限公司 | Method for controlling stepper motor current |
| CN106404033A (en) * | 2016-08-03 | 2017-02-15 | 重庆盟讯电子科技有限公司 | Automobile instrument panel automatic detection system based on angle sensor |
| CN113071312A (en) * | 2021-05-14 | 2021-07-06 | 郑州捷安高科股份有限公司 | Pointer instrument, pointer instrument control method, instrument controller, and medium |
-
2009
- 2009-02-11 CN CNU2009200012982U patent/CN201352125Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102519511A (en) * | 2011-12-23 | 2012-06-27 | 埃泰克汽车电子(芜湖)有限公司 | Indication verification apparatus of automobile instrument and verification method thereof |
| CN102843082A (en) * | 2012-09-06 | 2012-12-26 | 山东省科学院自动化研究所 | Self-adaptive control algorithm of pointer of stepper motor type motormeter |
| CN102843082B (en) * | 2012-09-06 | 2014-12-24 | 山东省科学院自动化研究所 | A self-adaptive control algorithm of stepper motor vehicle instrument pointer |
| CN102843083A (en) * | 2012-09-18 | 2012-12-26 | 天津市亚安科技股份有限公司 | Method for controlling stepper motor current |
| CN102843083B (en) * | 2012-09-18 | 2015-06-03 | 天津市亚安科技股份有限公司 | Method for controlling stepper motor current |
| CN106404033A (en) * | 2016-08-03 | 2017-02-15 | 重庆盟讯电子科技有限公司 | Automobile instrument panel automatic detection system based on angle sensor |
| CN113071312A (en) * | 2021-05-14 | 2021-07-06 | 郑州捷安高科股份有限公司 | Pointer instrument, pointer instrument control method, instrument controller, and medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201352125Y (en) | Stepping motor automobile combined instrument | |
| CN101509791B (en) | Automobile digitalization instrument controlling and displaying method and device | |
| CN102003978A (en) | Automotive combined instrument and speed ratio adjusting method | |
| CN201628865U (en) | Automobile combined instrument with automobile electric control diagnostic function | |
| CN101055200A (en) | CAN bus type agricultural machine digital instrument | |
| CN201060207Y (en) | Stepping motor type engine speed hours meter | |
| CN201816540U (en) | Totally integrated digital automobile instrument based on K bus protocol | |
| CN201828280U (en) | Automobile combination instrument | |
| CN201575816U (en) | Speedometer | |
| CN202522905U (en) | Multifunctional instrument control system | |
| CN1136453C (en) | Inteligent type electronic speed meter for vehicle | |
| CN201094034Y (en) | Electronic type automobile combined instrument | |
| CN201685715U (en) | Electronics combined instrument for vehicles | |
| CN202357887U (en) | Automobile electronic combination instrument | |
| CN202974294U (en) | Multifunctional speedometer based on single chip microcomputer | |
| CN202746015U (en) | Multifunctional adjustable rotating speed alarm timing control meter | |
| CN207535698U (en) | A kind of automobile combination meter | |
| CN202389219U (en) | Multifunctional liquid crystal combination instrument | |
| CN105628050A (en) | Circuit structure of speed odometer | |
| CN202528848U (en) | Automobile electronic combination instrument | |
| CN201296320Y (en) | Motorcycle meter panel | |
| CN202119448U (en) | Milemeter verification device | |
| CN2614972Y (en) | Car combined instrument control circuit | |
| CN208745759U (en) | Mechanical pointer LCD instrument panel | |
| CN113071312B (en) | Pointer instrument, pointer instrument control method, instrument controller and medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HARBIN VITI ELECTRONICS CO., LTD. Free format text: FORMER NAME: HARBIN VITI AUTOMOTIVE ELECTRONICS CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Haping Road Development Zone in Harbin City, Heilongjiang province 150060 zone haping Road No. 11 Patentee after: Harbin Viti Electronics Co., Ltd. Address before: Haping Road Development Zone in Harbin City, Heilongjiang province 150060 zone haping Road No. 11 Patentee before: Harbin VITI Automobile Electronics Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091125 |