CN103344261B - The inertia resetting method of automobile meter pointer - Google Patents
The inertia resetting method of automobile meter pointer Download PDFInfo
- Publication number
- CN103344261B CN103344261B CN201310294330.1A CN201310294330A CN103344261B CN 103344261 B CN103344261 B CN 103344261B CN 201310294330 A CN201310294330 A CN 201310294330A CN 103344261 B CN103344261 B CN 103344261B
- Authority
- CN
- China
- Prior art keywords
- stepper motor
- meter pointer
- automobile meter
- automobile
- impulse signal
- 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.)
- Active
Links
Abstract
The inertia resetting method of automobile meter pointer, the present invention relates to the resetting method of automobile meter pointer.To solve the problem that existing automobile meter pointer original point return mode adds hardware circuit setting.It comprises the steps: one, to driving the stepper motor of automobile meter pointer to power on; Arrange reverse impulse signal number n is in a register 0 simultaneously; Two, stepper motor driver applies a reverse impulse signal to stepper motor, makes automobile meter pointer move a step pitch to the initial point place of automobile instrument, and makes n add 1; Three, single-chip microcomputer judges whether the reverse impulse signal number n that stepper motor driver applies to stepper motor equals N; If the result of four step 3 is "No", then perform step 2; If the result of step 3 is "Yes", then terminate.
Description
Technical field
The present invention relates to the resetting method of automobile meter pointer.
Background technology
Present automobile meter pointer is all driven by stepper motors.Electrical quantity corresponding to the performance data of automobile, by stepper motor output electric pulse, is expressed on panel board by driving stepper motor gauge pointer.When automobile instrument is powered cut-off, such as turn off motor car engine, change battery etc., the pointer of automobile instrument just loses the origin position of starting, needs original point return to operate.
The rotation of stepper motor runs step by step with fixing angle (being called " step angle "), is widely used in various opened loop control.The operation of stepper motor will have an electronic installation to drive, and this device is exactly stepper motor driver, and it is converted into the angular displacement of stepper motor the pulse signal that control system sends.The frequency of control step pulse signal, can to the accurate speed governing of motor; The number of control step pulse, can reach the pinpoint object of motor.
Current automobile meter pointer original point return, mainly induced voltage testing circuit is set on step motor stator winding, when gauge pointer, at the initial point place of dial plate, (initial point place is provided with block, block pointer no longer to move) and not when initial point place, the voltage of stator winding induction is different, carrys out measuring instrument pointer whether revert to initial point according to the change of this voltage.This mode add hardware circuit cost and complicacy.
Summary of the invention
The object of the invention is the inertia resetting method that a kind of automobile meter pointer is provided for automobile instrument, to solve the problem that existing automobile meter pointer original point return mode adds hardware circuit setting.Power on one, to the stepper motor of driving automobile meter pointer; Arrange reverse impulse signal number n is in a register 0 simultaneously; Two, stepper motor driver applies a reverse impulse signal to stepper motor, makes automobile meter pointer move a step pitch to the initial point place of automobile instrument, and makes n add 1; Three, single-chip microcomputer judges whether the reverse impulse signal number n that stepper motor driver applies to stepper motor equals N; If the result of four step 3 is "No", then perform step 2; If the result of step 3 is "Yes", then terminate.
The inventive method does not increase the complicacy of circuit, does not need to arrange hardware circuit.The most important thing is, present invention, avoiding the knock-on action of automobile meter pointer, and can be that automobile meter pointer reliably makes zero.
Accompanying drawing explanation
Fig. 1 is schematic flow sheet of the present invention.Fig. 2 is the principle schematic that the present invention avoids automobile meter pointer to bounce.
Embodiment
Embodiment one: illustrate present embodiment below in conjunction with Fig. 1.Present embodiment comprises the steps: one, to driving the stepper motor of automobile meter pointer to power on; Arrange reverse impulse signal number n is in a register 0 simultaneously; Two, stepper motor driver applies a reverse impulse signal to stepper motor, makes automobile meter pointer move a step pitch to the initial point place of automobile instrument, and makes n add 1; Three, single-chip microcomputer judges whether the reverse impulse signal number n that stepper motor driver applies to stepper motor equals N; N equals 9; The Delta instrument panel motor of SA20S36F-007A model selected by stepper motor in the present invention, and this motor stepping angle is 10 degree ± 0.5 degree.The stepper motor of the type, there are upper and lower 2 groups of pawl levels, often organize pawl level and have 9 to magnetic pole interlaced with each other, the phase place assignment 180 degree of 9 pairs of magnetic poles of upper and lower two groups, according to this structure, drive the electric current rotating 360 degrees of winding, actual needle pivot rotates 40 degree, that is 9 such cycles just can complete the flyback action of needle pivot rotating 360 degrees, and therefore N is chosen for 9; If the result of four step 3 is "No", then perform step 2; If the result of step 3 is "Yes", then terminate.
The setting of above-mentioned steps of the present invention is mainly in order to avoid the knock-on of automobile meter pointer, as shown in Figure 2: stepping motor for meter is inner with backstop, because do not detect the circuit of back electromotive force, pointer is before work, need first to do pressure flyback action, assuming that pointer rotates according to fixed rotating speed, in time arriving backstop, internal magnetic field continues to rotate, but pointer can not continue and magnetic field rotating owing to being intercepted by backstop, before internal magnetic field rotates, 180 spend (taking inner check as reference point) in journey, pointer is failure to actuate, but when magnetic field rotating is more than 180 degree time, drive the permanent magnet rotor of pointer can have the trend rotating 180 degree round about under the action of a magnetic force, pointer is caused to shake.For this phenomenon, time MCU control rotating magnetic field arrives 180 degree again, need to break immediately the electric current of generation rotating magnetic field, and then make rotor be in free floating state, owing to there is no reverse magnetic force, therefore pointer can not bounce, according to the pointer loading condition of reality, after carrying out certain time delay, again winding is energized, makes the direction of rotating magnetic field be 0 degree (with position of inner check for reference point), if pointer is not in zero-bit, pointer can rotate through 180 degree of points under the effect of inertia, repeats above step and makes pointer complete flyback action.
Claims (1)
1. the inertia resetting method of automobile meter pointer, is characterized in that it comprises the steps: one, to driving the stepper motor of automobile meter pointer to power on; Arrange reverse impulse signal number n is in a register 0 simultaneously; The Delta instrument panel motor of SA20S36F-007A model selected by stepper motor, and this motor stepping angle is 10 degree ± 0.5 degree; This stepper motor, has upper and lower 2 groups of pawl poles, and often organize pawl and have 9 to magnetic pole interlaced with each other, the phase differential of 9 pairs of magnetic poles of upper and lower two groups is 180 degree, and according to this structure, drive the electric current rotating 360 degrees of winding, actual needle pivot rotates 40 degree; Two, stepper motor driver applies a reverse impulse signal to stepper motor, makes automobile meter pointer move a step pitch to the initial point place of automobile instrument, and makes n add 1; Three, single-chip microcomputer judges whether the reverse impulse signal number n that stepper motor driver applies to stepper motor equals 9; If the result of four step 3 is "No", then perform step 2; If the result of step 3 is "Yes", then terminate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310294330.1A CN103344261B (en) | 2013-07-12 | 2013-07-12 | The inertia resetting method of automobile meter pointer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310294330.1A CN103344261B (en) | 2013-07-12 | 2013-07-12 | The inertia resetting method of automobile meter pointer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103344261A CN103344261A (en) | 2013-10-09 |
| CN103344261B true CN103344261B (en) | 2016-02-24 |
Family
ID=49279077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310294330.1A Active CN103344261B (en) | 2013-07-12 | 2013-07-12 | The inertia resetting method of automobile meter pointer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103344261B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109813357B (en) * | 2018-12-25 | 2021-05-04 | 北京青云航空仪表有限公司 | Return-to-zero algorithm of pointer instrument |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53144379A (en) * | 1977-05-21 | 1978-12-15 | Tokyo Seimitsu Co Ltd | Automatic zero adjustment method |
| CN2249951Y (en) * | 1995-11-14 | 1997-03-19 | 武汉市国营江新仪表厂 | Stepping electronic meters |
| US6624608B2 (en) * | 2001-02-23 | 2003-09-23 | Denso Corporation | Indicating instrument for a vehicle |
| CN100483274C (en) * | 2005-11-03 | 2009-04-29 | 重庆邮电学院 | Drive unit for digital control pointer type meters in cars, and drive method |
| CN101017102A (en) * | 2006-02-09 | 2007-08-15 | 晋裕工业股份有限公司 | Return-to-zero method of indicating gauge and indicating gauge using same |
| CN101430212B (en) * | 2008-12-01 | 2010-08-11 | 上海德科电子仪表有限公司 | Gage pointer zero-return detection method |
-
2013
- 2013-07-12 CN CN201310294330.1A patent/CN103344261B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103344261A (en) | 2013-10-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101647190B (en) | Brushless motor control device and brushless motor controlling method | |
| CN104165649B (en) | A kind of brshless DC motor Hall element power-on self-test surveys method | |
| CN103222168B (en) | A kind of servomotor and servo-control system | |
| CN202364092U (en) | Servo motor and servo control system | |
| CN101764553A (en) | Method for controlling permanent magnet synchronous motor for Hall switch sensor | |
| CN106655959A (en) | Method for measuring rotation speed of brushless direct-current motor | |
| CN104034464A (en) | Even unit alternating-current permanent magnet motor torque ripple testing method | |
| CN207069952U (en) | A kind of motor rotor position detecting system | |
| CN103344261B (en) | The inertia resetting method of automobile meter pointer | |
| CN106982020B (en) | Utilize the method and system of servo-driver evaluation motor cogging torque size | |
| CN102221673B (en) | Method for testing copper loss and temperature rise of multi-phase high-power low-speed permanent magnet synchronous motor | |
| CN105958872A (en) | Four-quadrant position-sensorless control method for four-phase switch reluctance motor | |
| CN104090235B (en) | Odd location AC magnetoelectric machine torque ripple method of testing | |
| JP2010230325A (en) | Method for initializing indicating instrument for vehicle | |
| CN102832863B (en) | Controller for motor and method thereof | |
| CN103472313A (en) | Permanent magnet synchronous motor alternating current and direct current shaft inductance testing method giving consideration to saturation situation | |
| CN107762957A (en) | A kind of device for adjusting electric fan steering angle | |
| CN103248298A (en) | Driving method for DC motor | |
| CN207817163U (en) | The uncontrollable power generation test system of magneto based on Labview | |
| CN102735285B (en) | Method for calibrating stepping motor for instrument | |
| CN202652026U (en) | Self-speed-measurement permanent magnet synchronous motor | |
| CN102916528A (en) | Hall disk for detecting position of motor rotor | |
| CN202917183U (en) | Device driving instrument indicator to rotate by utilizing gas | |
| CN103344254A (en) | Testing system capable of simulating ship postures on land | |
| Zhiyi et al. | The Switching Time Research of BLDCM for Fuel Pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Hu Yang Inventor after: Wang Dazhao Inventor after: Xue Yonggang Inventor after: Deng Lei Inventor after: Tong Dalong Inventor after: Wang Yu Inventor before: Hu Yang Inventor before: Xue Yonggang Inventor before: Wang Dazhao Inventor before: Deng Lei Inventor before: Tong Dalong |
|
| COR | Change of bibliographic data | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |