CN104047743B - A kind of high-speed electromagnetic valve driving voltage electric current storage and control unit - Google Patents
A kind of high-speed electromagnetic valve driving voltage electric current storage and control unit Download PDFInfo
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- CN104047743B CN104047743B CN201410251927.2A CN201410251927A CN104047743B CN 104047743 B CN104047743 B CN 104047743B CN 201410251927 A CN201410251927 A CN 201410251927A CN 104047743 B CN104047743 B CN 104047743B
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Abstract
The invention discloses the storage of a kind of high-speed electromagnetic valve driving voltage electric current and control unit, be made up of the digital regulation resistance integrated circuit (1) of 1 SPI serial bus data interface the first voltage follower (2) identical with 4, the second voltage follower (3), tertiary voltage follower (4), the 4th voltage follower (5); RW end and 4 voltage followers of described 4 digital regulation resistances connect one to one; Data modification is realized by supporting monitoring software with the function checked. The present invention achieves each parameter by software and arranges, and facilitates the use in the stages such as exploitation, demarcation, debugging, test, improves motility, convenience and reliability that parameter is arranged; The circuit being made up of potentiometer and control method control accurate, flexible, reliable, convenient other each circuit parameters of cooperation carry out multi-faceted Optimized Matching combination, it is possible to be generalized to the circuit that other electronic instrument equipment, industrial automatic controls etc. need numeral to set.
Description
Technical field
The invention belongs to diesel engine control technology field, be specifically related to a kind of high-speed electromagnetic valve driving voltage electric current storage and control unit.
Background technology
In certain high-speed electromagnetic valve pulsewidth modulation with current feedback drive circuit, for making electromagnetic valve quick pick-up, it is necessary to control firing current; For accelerating the electric current rate of climb of electromagnetic valve, it is necessary to design circuit for producing high voltage, control high voltage power supply; Circuit for producing high voltage should have reliable driving force under Engine full load, and power consumption again can not be too big, it is therefore desirable to controls boost current; When after the reliable adhesive of electromagnetic valve, in order to save energy, drive system adopts low current to maintain the attracting state of electromagnetic valve, it is therefore desirable to control to maintain electric current. Need to adjust to the different conditions above-mentioned parameter of different system and system.
Summary of the invention
The present invention is contemplated to solve when controller hardware circuit parameter keeps consistent, how to realize, by software, the problem that nozzle parameter adjusts, propose the storage circuit that a kind of digital regulation resistance to have nonvolatile memory is core, realized setting and the storage of nozzle parameter by software design patterns.
Technical scheme:
A kind of high-speed electromagnetic valve driving voltage electric current storage and control unit, the voltage follower identical with structure by the digital regulation resistance integrated circuit of 1 SPI serial bus data interface forms; Described digital regulation resistance integrated circuit is integrated with 4 digital regulation resistances; RW end and 4 voltage followers of described 4 digital regulation resistances connect one to one; Data modification is realized by supporting monitoring software with the function checked;
The operations of described digital regulation resistance, is controlled by the spi bus of digital regulation resistance integrated circuit; Described digital regulation resistance has the fault-tolerant defencive function preventing parameter setting data from crossing the border;
The rail-to-rail precision operational-amplifier that described voltage follower is powered by 5V is constituted, and output voltage can the voltage accuracy of 0.039V accurately control, and maximum output voltage is 5V, minimum for 0V;
Described monitoring software is provided with storage and controls parameter, including firing current, maintains electric current, booster voltage and boost current; Described monitoring software is provided with " sequence number selection " " data setting " " arranging enable " command functions, wherein, " sequence number selection " order is for realizing the selection to each control parameter, " data setting " order is for realizing the setting often organizing data, and " arranging enable " order performs often organizing state modulator order for realization.
The present invention devises electromagnetic injection valve and drives the digital circuit interface of parameter storage circuit and CPU, the analog circuit interface of design digital regulation resistance output and driving circuit for electromagnetic valve, SPI serial data bus is utilized to realize the operation of digital regulation resistance, receive and store the CPU order sent and data, illegal command is carried out fault-tolerant processing with data of crossing the border.
Beneficial effects of the present invention:
1. digital regulation resistance volume is little, integrated level is high, standard SPI digital interface, firing current, maintenance electric current, booster voltage current parameters are existed in the nonvolatile memory in digital regulation resistance, achieve each parameter by software to arrange, the use in the stages such as convenient exploitation, demarcation, debugging, test, substantially increases motility, convenience and reliability that parameter is arranged;
2. the circuit being made up of potentiometer and control method control accurate, flexible, reliable, coordinate other each circuit parameters to carry out multi-faceted Optimized Matching combination very easily, can be generalized to the circuit that other electronic instrument equipment, industrial automatic controls etc. need numeral to set simultaneously.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the present invention.
The each labelling of accompanying drawing represents respectively:
The digital regulation resistance integrated circuit of 1-SPI serial bus data interface,
2-the first voltage follower,
3-the second voltage follower,
4-tertiary voltage follower,
5-the 4th voltage follower.
Detailed description of the invention
A kind of high-speed electromagnetic valve driving voltage electric current storage and control unit, the voltage follower identical with structure by the digital regulation resistance integrated circuit of 1 SPI serial bus data interface forms; Described digital regulation resistance integrated circuit is integrated with 4 digital regulation resistances; RW end and 4 voltage followers of described 4 digital regulation resistances connect one to one; Data modification is realized by supporting monitoring software with the function checked;
The operations of described digital regulation resistance, is controlled by the spi bus of digital regulation resistance integrated circuit; Described digital regulation resistance has the fault-tolerant defencive function preventing parameter setting data from crossing the border;
The rail-to-rail precision operational-amplifier that described voltage follower is powered by 5V is constituted, and output voltage can the voltage accuracy of 0.039V accurately control, and maximum output voltage is 5V, minimum for 0V;
Described monitoring software is provided with storage and controls parameter, including 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 " " arranging enable ", wherein, " sequence number selection " order is for realizing the selection to each control parameter, " data setting " order is for realizing the setting often organizing data, and " arranging enable " order performs often organizing state modulator order for realization.
The present invention devises electromagnetic injection valve and drives the digital circuit interface of parameter storage circuit and CPU, the analog circuit interface of design digital regulation resistance output and driving circuit for electromagnetic valve, SPI serial data bus is utilized to realize the operation of digital regulation resistance, receive and store the CPU order sent and data, illegal command is carried out fault-tolerant processing with data of crossing the border.
Below in conjunction with accompanying drawing, the operation principle of the present invention is described further:
The present invention designs 4 road parameter storage circuit, each road corresponding one group of potentiometer of storage circuit, digital regulation resistance is integrated with 4 groups of potentiometers, by SPI serial line interface, each group of digital regulation resistance is controlled, digital regulation resistance output controls driving circuit for electromagnetic valve by voltage follower, and voltage follower adds band load and the driving force of digital regulation resistance. Voltage after voltage follower is carried out AD collection by system, in order to digital regulation resistance is controlled by CPU, and follower adopts to have and amplifies the rail-to-rail operational amplifier that precision is significantly high.
Potentiometer output can accurately be adjusted by the present invention, it is possible to achieve the output of 128 grades of resistance, powers for chip 5V, and output voltage can the voltage accuracy of 0.039V accurately control, and maximum output voltage is 5V, minimum for 0V.
Potentiometer of the present invention output 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 updated simultaneously, and when chip powers on, volatile memory directly invokes data of nonvolatile storage.
Present invention storage and control parametric circuit; 2 corresponding firing currents; 3 corresponding maintenance electric currents; 4 corresponding booster voltages, 5 corresponding boost current, each selection of control parameter is realized by " sequence number selection " order; often group data are realized by " data setting " order; often organizing state modulator order to perform to be realized by potentiometer " arranging enable " order, the operations of above-mentioned potentiometer is controlled operation by spi bus, if potentiometer parameter setting data are crossed the border and had fault-tolerant defencive function.
Claims (1)
1. a high-speed electromagnetic valve driving voltage electric current storage and control unit, it is characterized in that, be made up of the digital regulation resistance integrated circuit (1) of 1 SPI serial bus data interface the first voltage follower (2) identical with structure, the second voltage follower (3), tertiary voltage follower (4), the 4th voltage follower (5); Described digital regulation resistance integrated circuit (1) is integrated with 4 digital regulation resistances; The RW end of described 4 digital regulation resistances and the first voltage follower (2), the second voltage follower (3), tertiary voltage follower (4), the 4th voltage follower (5) connect one to one; Data modification is realized by supporting monitoring software with the function checked; The operations of described digital regulation resistance, is controlled by the spi bus of digital regulation resistance integrated circuit (1); Described digital regulation resistance has the fault-tolerant defencive function preventing parameter setting data from crossing the border; The rail-to-rail precision operational-amplifier that described the first voltage follower (2), the second voltage follower (3), tertiary voltage follower (4), the 4th voltage follower (5) are powered by 5V is constituted, output voltage can the voltage accuracy of 0.039V accurately control, maximum output voltage is 5V, minimum for 0V; Described monitoring software is provided with storage and controls parameter, including firing current, maintains electric current, booster voltage and boost current; Described monitoring software is provided with " sequence number selection " " data setting " " arranging enable " command functions, wherein, " sequence number selection " order is for realizing the selection to each control parameter, " data setting " order is for realizing the setting often organizing data, and " arranging enable " order performs often organizing state modulator order for realization.
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 |
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| 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 |
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| CN104047743A CN104047743A (en) | 2014-09-17 |
| CN104047743B true CN104047743B (en) | 2016-06-15 |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5623534A (en) * | 1979-08-02 | 1981-03-05 | Fuji Heavy Ind Ltd | Throttle opening detector for air-fuel ratio controller |
| JP5023172B2 (en) * | 2010-03-09 | 2012-09-12 | 日立オートモティブシステムズ株式会社 | Solenoid valve drive circuit |
| CN102778856B (en) * | 2011-05-13 | 2015-11-25 | 刘圣平 | Abnormal peace control universal circuit |
| CN102679021B (en) * | 2012-05-12 | 2016-06-15 | 中国兵器工业集团第七0研究所 | A kind of 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 |
| CN103438264B (en) * | 2013-09-12 | 2016-01-27 | 中国北方发动机研究所(天津) | A kind of high-end drive circuit based on suspended power supply |
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