CN104047743A - Driving voltage and current storage and control unit for high-speed solenoid valve - Google Patents
Driving voltage and current storage and control unit for high-speed solenoid valve Download PDFInfo
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- CN104047743A CN104047743A CN201410251927.2A CN201410251927A CN104047743A CN 104047743 A CN104047743 A CN 104047743A CN 201410251927 A CN201410251927 A CN 201410251927A CN 104047743 A CN104047743 A CN 104047743A
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Abstract
The invention discloses a driving voltage and current storage and control unit for a high-speed solenoid valve. The driving voltage and current storage and control unit is composed of a digital potentiometer integrated circuit (1) of an SPI serial bus data interface, and a first voltage follower (2), a second voltage follower (3), a third voltage follower (4) and a fourth voltage follower (5) which are the same, wherein RW ends of four digital potentiometers are connected with the four voltage followers in a manner of one-to-one correspondence; functions of data modification and view are implemented by supporting monitoring software. According to the driving voltage and current storage and control unit for the high-speed solenoid valve, setting of each parameter is realized through software, the use in stages of development, calibration, debugging, test and the like are facilitated, the flexibility, convenience and reliability of the parameter setting are improved, control of the circuit formed by the potentiometers and the control method is precise, flexible and reliable, all-round optimization matching combination is conveniently performed by matching with parameters of other circuits, and the unit can be applied to other electronic instrumentation equipment and industrial automation control circuits in which digital setting is required and the like.
Description
Technical field
The invention belongs to Diesel Engine Control technical field, be specifically related to a kind of high-speed electromagnetic valve driving voltage electric current storage and control unit.
Background technique
In certain high-speed electromagnetic valve pulsewidth modulation and currrent feedback drive circuit, for making solenoid valve quick pick-up, need to control firing current; For accelerating the Current rise speed of solenoid valve, need to design circuit for producing high voltage, control high-voltage power; Circuit for producing high voltage should have down reliable driving force at full capacity at motor, and power consumption again can not be too large, therefore needs to control boost current; When after the reliable adhesive of solenoid valve, in order to save energy, drive system adopts low current to maintain the attracting state of solenoid valve, therefore needs control to maintain electric current.The different conditions above-mentioned parameter of different system and system is needed to adjust.
Summary of the invention
The present invention is exactly in order to solve in the situation that controller hardware circuit parameter is consistent, how to realize by software the problem that nozzle parameter is adjusted, propose a kind ofly to there is the digital regulation resistance of nonvolatile memory as the memory circuit of core, realized setting and the storage of nozzle parameter by software setting.
Technological scheme of the present invention:
A kind of high-speed electromagnetic valve driving voltage electric current storage and control unit, the voltage follower identical with 4 by the digital regulation resistance intergrated circuit of 1 SPI serial bus data interface forms; Described digital regulation resistance intergrated circuit is integrated 4 digital regulation resistances; The RW end of described 4 digital regulation resistances connects one to one with 4 voltage followers; Data modification is realized by supporting monitoring software with the function of checking;
The operations of described digital regulation resistance, controls by the spi bus of digital regulation resistance intergrated circuit; Described digital regulation resistance has the parameter of preventing the fault-tolerant protective function that data are crossed the border is set;
The rail-to-rail precision operational-amplifier that described voltage follower is powered by 5V forms, and the voltage accuracy that output voltage can 0.039V is accurately controlled, and maximum output voltage is 5V, and minimum is 0V;
Described monitoring software is provided with storage and controls parameter, comprises firing current, maintains electric current, booster voltage and boost current; Described monitoring software is provided with " sequence number selection " " data setting " " setting enables " command functions, wherein, " sequence number selection " order is for realizing the selection to each control parameter, " data setting " order is for realizing the setting to every group of data, and " setting enables " order is carried out every group of parameter control command for realizing.
The present invention has designed the digital circuit interface of electromagnetic injection valve driving Parameter storage circuit and CPU, the analog circut interface of the output of design digital regulation resistance and driving circuit for electromagnetic valve, utilize SPI serial data bus to realize the operation of digital regulation resistance, receive and store order and data that CPU sends, illegal command and the data of crossing the border are carried out to fault-tolerant processing.
Beneficial effect of the present invention:
1. digital regulation resistance volume is little, level of integration is high, standard SPI DI Digital Interface, by firing current, maintain electric current, booster voltage current parameters exists in the nonvolatile memory in digital regulation resistance, realize each parameter setting by software, facilitate the use in the stages such as exploitation, demarcation, debugging, test, greatly improved flexibility, convenience and reliability that parameter arranges;
2. the circuit being made up of potentiometer and controlling method control are accurately, flexibly, reliably, coordinate very easily other each circuit parameters to carry out multi-faceted Optimized Matching combination, can be generalized to the circuit that other electronic instrument equipment, industrial automatic control etc. need numeral to set simultaneously.
Brief description of the drawings
Fig. 1 is circuit diagram of the present invention.
The each mark of accompanying drawing represents respectively:
The digital regulation resistance intergrated circuit of 1-SPI serial bus data interface,
2-the first voltage follower,
3-second voltage follower,
4-tertiary voltage follower,
5-the 4th voltage follower.
Embodiment
A kind of high-speed electromagnetic valve driving voltage electric current storage and control unit, the voltage follower identical with 4 by the digital regulation resistance intergrated circuit of 1 SPI serial bus data interface forms; Described digital regulation resistance intergrated circuit is integrated 4 digital regulation resistances; The RW end of described 4 digital regulation resistances connects one to one with 4 voltage followers; Data modification is realized by supporting monitoring software with the function of checking;
The operations of described digital regulation resistance, controls by the spi bus of digital regulation resistance intergrated circuit; Described digital regulation resistance has the parameter of preventing the fault-tolerant protective function that data are crossed the border is set;
The rail-to-rail precision operational-amplifier that described voltage follower is powered by 5V forms, and the voltage accuracy that output voltage can 0.039V is accurately controlled, and maximum output voltage is 5V, and minimum is 0V;
Described monitoring software is provided with storage and controls parameter, comprises firing current, maintains electric current, booster voltage and boost current; Described monitoring software is provided with command functions such as " sequence number selection " " data setting " " setting enable ", wherein, " sequence number selection " order is for realizing the selection to each control parameter, " data setting " order is for realizing the setting to every group of data, and " setting enables " order is carried out every group of parameter control command for realizing.
The present invention has designed the digital circuit interface of electromagnetic injection valve driving Parameter storage circuit and CPU, the analog circut interface of the output of design digital regulation resistance and driving circuit for electromagnetic valve, utilize SPI serial data bus to realize the operation of digital regulation resistance, receive and store order and data that CPU sends, illegal command and the data of crossing the border are carried out to fault-tolerant processing.
Below in conjunction with accompanying drawing, working principle of the present invention is described further:
The present invention designs 4 road Parameter storage circuit, the corresponding one group of potentiometer of each road memory circuit, integrated 4 groups of potentiometers in digital regulation resistance, by SPI serial line interface, each group digital regulation resistance is controlled, digital regulation resistance is exported by voltage follower control driving circuit for electromagnetic valve, and the band that voltage follower has increased digital regulation resistance carries and driving force.The voltage of system after to voltage follower carries out AD collection, so that CPU controls digital regulation resistance, follower adopts has the very high rail-to-rail operational amplifier of the precision of amplification.
The present invention can accurate adjustment to potentiometer output, can realize 128 grades of resistance outputs, and for chip 5V power supply, the voltage accuracy that output voltage can 0.039V is accurately controlled, and maximum output voltage is 5V, and minimum is 0V.
Potentiometer output of the present invention is controlled by the data in volatile memory, store data in nonvolatile memory by software, volatile memory and nonvolatile memory are assigned as same address, data are upgraded simultaneously, and when chip power, volatile memory is directly called data of nonvolatile storage.
The present invention's storage and the corresponding firing current of control parametric circuit 2; 3 correspondences maintain electric current; 4 corresponding booster voltages; 5 corresponding boost current; each selection of control parameter is realized by " sequence number selection " order, and every group of data realize by " data setting " order, and every group of parameter control command carried out by potentiometer " setting enables " order and realized; the operations of above-mentioned potentiometer is carried out control operation by spi bus, has fault-tolerant protective function if potentiometer parameter setting data are crossed the border.
Claims (1)
1. a high-speed electromagnetic valve driving voltage electric current storage and control unit, it is characterized in that, formed by the digital regulation resistance intergrated circuit (1) of 1 SPI serial bus data interface the first voltage follower (2) identical with 4, second voltage follower (3), tertiary voltage follower (4), the 4th voltage follower (5); Described digital regulation resistance intergrated circuit (1) is integrated 4 digital regulation resistances; The RW end of described 4 digital regulation resistances connects one to one with the first voltage follower (2), second voltage follower (3), tertiary voltage follower (4), the 4th voltage follower (5); Data modification is realized by supporting monitoring software with the function of checking; The operations of described digital regulation resistance, controls by the spi bus of digital regulation resistance intergrated circuit (1); Described digital regulation resistance has the parameter of preventing the fault-tolerant protective function that data are crossed the border is set; The rail-to-rail precision operational-amplifier that described the first voltage follower (2), second voltage follower (3), tertiary voltage follower (4), the 4th voltage follower (5) are powered by 5V forms, output voltage can 0.039V voltage accuracy accurately control, maximum output voltage is 5V, and minimum is 0V; Described monitoring software is provided with storage and controls parameter, comprises firing current, maintains electric current, booster voltage and boost current; Described monitoring software is provided with " sequence number selection " " data setting " " setting enables " command functions, wherein, " sequence number selection " order is for realizing the selection to each control parameter, " data setting " order is for realizing the setting to every group of data, and " setting enables " order is carried out every group of parameter control command for realizing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410251927.2A CN104047743B (en) | 2014-06-10 | 2014-06-10 | A kind of high-speed electromagnetic valve driving voltage electric current storage and control unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410251927.2A CN104047743B (en) | 2014-06-10 | 2014-06-10 | A kind of high-speed electromagnetic valve driving voltage electric current storage and control unit |
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| Publication Number | Publication Date |
|---|---|
| CN104047743A true CN104047743A (en) | 2014-09-17 |
| CN104047743B CN104047743B (en) | 2016-06-15 |
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| CN201410251927.2A Active CN104047743B (en) | 2014-06-10 | 2014-06-10 | A kind of high-speed electromagnetic valve driving voltage electric current storage and control unit |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4391250A (en) * | 1979-08-02 | 1983-07-05 | Fuji Jukogyo Kabushiki Kaisha | System for detecting the operation of the throttle valve |
| US20110222202A1 (en) * | 2010-03-09 | 2011-09-15 | Hitachi Automotive Systems, Ltd. | Electromagnetic Valve Driving Circuit |
| CN102679021A (en) * | 2012-05-12 | 2012-09-19 | 中国兵器工业集团第七0研究所 | Efficient boost circuit for electromagnetic valve drive |
| CN102777302A (en) * | 2012-07-23 | 2012-11-14 | 中国兵器工业集团第七0研究所 | Method for driving parameter optimization experiment of high-pressure common-rail high-speed electromagnetic valve |
| CN102778856A (en) * | 2011-05-13 | 2012-11-14 | 刘圣平 | Practical, safe and effect-producing universal control electric appliance |
| CN203035361U (en) * | 2013-01-25 | 2013-07-03 | 常州易控汽车电子有限公司 | Engine electromagnetic valve driving circuit |
| CN103438264A (en) * | 2013-09-12 | 2013-12-11 | 中国北方发动机研究所(天津) | High-end driving circuit based on suspension power supply |
-
2014
- 2014-06-10 CN CN201410251927.2A patent/CN104047743B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4391250A (en) * | 1979-08-02 | 1983-07-05 | Fuji Jukogyo Kabushiki Kaisha | System for detecting the operation of the throttle valve |
| US20110222202A1 (en) * | 2010-03-09 | 2011-09-15 | Hitachi Automotive Systems, Ltd. | Electromagnetic Valve Driving Circuit |
| CN102778856A (en) * | 2011-05-13 | 2012-11-14 | 刘圣平 | Practical, safe and effect-producing universal control electric appliance |
| CN102679021A (en) * | 2012-05-12 | 2012-09-19 | 中国兵器工业集团第七0研究所 | Efficient boost circuit for electromagnetic valve drive |
| CN102777302A (en) * | 2012-07-23 | 2012-11-14 | 中国兵器工业集团第七0研究所 | Method for driving parameter optimization experiment of high-pressure common-rail high-speed electromagnetic valve |
| CN203035361U (en) * | 2013-01-25 | 2013-07-03 | 常州易控汽车电子有限公司 | Engine electromagnetic valve driving circuit |
| CN103438264A (en) * | 2013-09-12 | 2013-12-11 | 中国北方发动机研究所(天津) | High-end driving circuit based on suspension power supply |
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| CN104047743B (en) | 2016-06-15 |
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