CN105114188B - A kind of adaptive diesel engine step speed-adjusting method - Google Patents
A kind of adaptive diesel engine step speed-adjusting method Download PDFInfo
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- CN105114188B CN105114188B CN201510464276.XA CN201510464276A CN105114188B CN 105114188 B CN105114188 B CN 105114188B CN 201510464276 A CN201510464276 A CN 201510464276A CN 105114188 B CN105114188 B CN 105114188B
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Abstract
The invention discloses a kind of adaptive diesel engine step speed-adjusting methods, include the following steps：S1. diesel engine is obtained in the initial driving step number of current gear stepper motor, and Driving Stepping Motor is to the initial step number；S2. the actual speed for monitoring diesel engine, judges otherwise whether the error of the actual speed and diesel engine between the goal-selling rotating speed of current gear more than preset threshold value jumps to step S4 more than step S3 is then jumped to；S3. the driving step number of stepper motor is calculated, and adjusts diesel engine in the driving step number of current gear stepper motor, jumps to step S2；S4. storage diesel engine in the driving step number of current gear stepper motor to diesel engine step speed-adjusting system.The present invention can quickly, accurately automatically adjust when diesel engine speed is not inconsistent standardization, meet diesel engine overall performance requirement, control effect is good, debugging is convenient, economy and durability.
Description
Technical field
The present invention relates to diesel engine speed regulation control field more particularly to a kind of adaptive diesel engine of diesel locomotive stepping tune
Fast method.
Background technology
Currently, internal microcomputer control diesel engine step speed-adjusting system is mainly the gear by controller regulating speed diesel oil machine,
Microcomputer controls stepper motor according to the gear of diesel engine and corresponding angular displacement occurs, and speed-setting piston is controlled by combined regulator
Lifting, to change the pretightning force of governor spring so that corresponding change occurs for the equipment of governor spring rear end connection, and speed governing supplies
The position of oily pull rod controls the fuel delivery of diesel engine, achievees the purpose that adjust diesel engine speed.
In actually controlling, because governor spring is the non-linear tower spring of parameter similar, the parameter between different governor springs
Also not exclusively the same, there is error in the rotating speed of different stalls so as to cause same diesel engine, or be using identical control
The different diesel engines of system same gear rotating speed there is also error, need to be modified.Currently used method mainly has：
1, governor spring is replaced, but replaces Comparision complexity, simultaneously because cannot be guaranteed more the reason of process aspect
It can pull up a horse and solve the problems, such as after changing.
2, according to the debugging situation of locomotive, driving step number is changed according to gear on former CPU software, increases or reduce speed governing
The pretightning force of spring accordingly increases or decreases diesel engine speed, but when number of locomotives is more, be easy to cause microcomputer software
Version is chaotic, it has not been convenient to safeguard later.
3, electric cabinet and stepper motor straight-tooth transmission mechanism are installed additional, such as：By the way that circuit is transformed, the tune of driver controller is allowed
The given instruction of speed and gear scribe line position where its speed adjusting lever are linear, rotate controller handle, that is, change speed governing and refer to
It enables, and the instruction corresponds to stepper motor steps or rotation angle, and then diesel engine is changed by motor-driven debugging mechanism
Injection pump fuel-flow control handle position, to realize the adjusting of diesel engine speed.This method increases economic cost and workload,
And manual operation is still wanted, it is cumbersome.
4, by the interfaces PC, the step number of each gear is set over the display, CPU software is transmitted to by communication, but when aobvious
Show that device is problematic or communication is abnormal, it is just inconvenient, in addition change step number over the display, cannot guarantee that it is primary all right,
In addition after of long duration, locomotive equipment has certain loss, and the value being arranged in the past is not necessarily accurate always, it is also necessary to constantly correct.
Invention content
The technical problem to be solved in the present invention is that：For technical problem of the existing technology, the present invention provides one
Kind can quickly, accurately automatically adjust when diesel engine speed is not inconsistent standardization, meet diesel engine overall performance requirement,
Control effect is good, debugging is convenient, the self application diesel engine step speed-adjusting method of economy and durability.
In order to solve the above technical problems, technical solution proposed by the present invention is：A kind of self application diesel engine step speed-adjusting side
Method includes the following steps：
S1. initial driving step number U of the acquisition diesel engine in current gear stepper motorN, and Driving Stepping Motor is to UNStep；
S2. the actual speed S for monitoring diesel engine, judge the actual speed and diesel engine current gear goal-selling
Rotating speed STBetween error whether more than preset threshold value otherwise jump to step S4 more than step S3 is then jumped to；
S3. the driving step number of stepper motor is calculated according to formula shown in formula (1), and adjusts the driving step number of stepper motor extremely
U is walked, and jumps to step S2；
In formula (1), U is the driving step number of current gear stepper motor, and P is preset proportionality coefficient, and e (k) is diesel engine
In current gear rotating speed desired value STAnd the difference of actual speed S, I are integral coefficient, and D is differential coefficient, UNCurrent gear stepping electricity
The initial driving step number of machine；
S4. storage diesel engine in the driving step number of current gear stepper motor to diesel engine step speed-adjusting system.
As a further improvement on the present invention, state step S1 the specific steps are：
S1.1a. the value U stored in diesel engine step speed-adjusting system is readN；
S1.2a. Driving Stepping Motor is to UNStep.
As a further improvement on the present invention, the step S1 the specific steps are：
S1.1b. the rule of thumb initial driving step number U of M grades of stepper motors of theoretical calculationM, M is the maximum of diesel engine
Digit；
S1.2b. the initial driving step number U in current gear stepper motor is calculated according to formula shown in formula (2)N,
UN=UM/M×N (2)
In formula (2), UNIt is diesel engine in the initial driving step number of current gear stepper motor, UMFor M grades of stepper motors
Initial driving step number, M are the maximum gear number of diesel engine, and N is diesel engine current gear number；
S1.3b. Driving Stepping Motor is to UNStep.
In the present invention, the driving step number of stepper motor walks for integer, U and U in formula (1) and formula (2)NValue be calculate
As a result integer value.
Compared with the prior art, the advantages of the present invention are as follows：
1, control effect of the present invention is good, compared with previous debud mode, after the present invention, due to using more advanced
PID (proportional integral differential) adjust, diesel engine speed application condition is small.
2, debugging is convenient, and when diesel engine speed of the present invention is debugged, automatic adjustment according to circumstances rapidly adjusts step number
Section, once changing, is adjusted in real time, does not need manual operation modification, moreover it is possible to prevent from artificially accidentally malfunctioning.
3, economy and durability will not additionally be increased input using the present invention, and time, increase are saved than circuit is transformed, changes hardware
Third party software is changed, convenient, economical and practical.
Description of the drawings
Fig. 1 is the adaptive diesel engine step speed-adjusting method flow diagram of the present invention.
Specific implementation mode
Below in conjunction with Figure of description and specific preferred embodiment, the invention will be further described, but not therefore and
It limits the scope of the invention.
As shown in Figure 1, a kind of adaptive diesel engine step speed-adjusting method of the present invention, specific implementation process are as follows：
In the present embodiment, it if the maximum gear number M of diesel engine is 16 grades, is walked in the initial driving of the gear stepper motor
Several empirical theory estimated values is 900 steps, after diesel engine starting, when gear changes, and the adaptive speed regulation of stepper motor
Process is：
Diesel engine controller gear is adjusted to N grades, obtains the initial driving step number of stepper motor in accordance with the following steps and drives
Dynamic stepper motor：
S1.1a. the value U stored in diesel engine step speed-adjusting system is readN；
S1.2a. Driving Stepping Motor is to UNStep.
When not being stored with the value in diesel engine step speed-adjusting system, then presses following step and calculate the initial of progress motor
Drive step number UN；
The initial driving step number U of S1.1b, rule of thumb M grades of stepper motors of theoretical calculationM=900, M=16 are diesel oil
The maximum gear number of machine；
S1.2b. the initial driving step number U in current gear stepper motor is calculated according to formula shown in formula (2)N,
UN=UM/M×N (2)
In formula (2), UNIt is diesel engine in the initial driving step number of current gear stepper motor, UMFor M grades of stepper motors
Initial driving step number, M are the maximum gear number of diesel engine, and N is diesel engine current gear number, and the driving step number of stepper motor can only
It is walked for integer, UNValue be formula (2) integer value；
S1.3b. Driving Stepping Motor is to UNStep.
In the present embodiment, if current gear is 10 grades, then the initial driving step number of stepper motor is：U10=900/16 ×
10=562.
In the present embodiment, stepper motor is driven to U to realize by Driving Stepping Motor forward or backwardsNStep, i.e.,
When diesel engine is increased to the gear by low grade, several steps of forward drive stepper motor, when diesel engine is down to this grade by top grade,
Then several steps of reverse drive progress motor.
Because of error existing for diesel engine control system, to which diesel engine speed and the rotating speed of target of the gear can be caused to differ
It causes, the rotating speed further to diesel engine is needed to be adjusted, it is in the present embodiment, specific using adaptive adjustable strategies
Method of adjustment be：
S2. the actual speed S for monitoring diesel engine, judge the actual speed and diesel engine current gear goal-selling
Rotating speed STBetween error whether more than preset threshold value otherwise jump to step S4 more than step S3 is then jumped to；
S3. the driving step number of stepper motor is calculated according to formula shown in formula (1), and adjusts diesel engine in current gear stepping
The driving step number of motor is U, jumps to step S2；
In formula (1), U is the driving step number of current gear stepper motor, and P is preset proportionality coefficient, and e (k) is diesel engine
In current gear rotating speed desired value STAnd the difference of actual speed S, I are integral coefficient, and D is differential coefficient, UNFor current gear stepping
The initial driving step number of motor, as k=1, e (k-1)=0.
S4. storage diesel engine in the driving step number of current gear stepper motor to diesel engine step speed-adjusting system.
In the present embodiment, adaptive method of adjustment uses PID (proportional integral differential) control algolithm, by supervising in real time
The rotating speed for surveying diesel engine, when error of the diesel engine speed and diesel engine real-time monitored between the rotating speed of target of the gear is big
When preset threshold value, system is just automatically adjusted the driving step number of progress motor, increases or decreases corresponding driving step
Number, until the rotating speed of diesel engine reaches the requirement of system design after adjustment, that is, the error monitored between rotating speed and rotating speed of target is small
It is stored into diesel engine step speed-adjusting system in preset threshold value, and by the driving step number of stepper motor at this time, for diesel engine
Next time directly transfers use when entering the gear.
In the present embodiment, it loses the influence of step in the process in order to reduce Step Motor speed, coordinate the normal of governor
Work, after controller speed adjusting lever returns " 0 " gear or locomotive unloading protecting, microcomputer software meeting Driving Stepping Motor has driven surplus
Remaining step number, i.e. stepper motor driving step number return to 0 step, and then Driving Stepping Motor powers off again.
Above-mentioned only presently preferred embodiments of the present invention, is not intended to limit the present invention in any form.Although of the invention
Disclosed above with preferred embodiment, however, it is not intended to limit the invention.Therefore, every without departing from technical solution of the present invention
Content, technical spirit any simple modifications, equivalents, and modifications made to the above embodiment, should all fall according to the present invention
In the range of technical solution of the present invention protection.
Claims (2)
1. a kind of adaptive diesel engine step speed-adjusting method, it is characterised in that include the following steps：
S1. initial driving step number U of the acquisition diesel engine in current gear stepper motorN, and Driving Stepping Motor is to UNStep；
S2. the actual speed S for monitoring diesel engine, judge the actual speed and diesel engine current gear goal-selling rotating speed
STBetween error whether more than preset threshold value otherwise jump to step S4 more than step S3 is then jumped to；
S3. the driving step number of stepper motor is calculated according to formula shown in formula (1), and is adjusted the driving step number of stepper motor and walked to U,
Jump to step S2；
In formula (1), U is the driving step number of current gear stepper motor, and P is preset proportionality coefficient, and e (k) is that diesel engine is being worked as
Preceding gear rotating speed desired value STAnd the difference of actual speed S, I are integral coefficient, and D is differential coefficient, UNCurrent gear stepper motor
Initial driving step number；
S4. storage diesel engine in the driving step number of current gear stepper motor to diesel engine step speed-adjusting system；
The step S1 the specific steps are：
S1.1b. the rule of thumb initial driving step number U of M grades of stepper motors of theoretical calculationM, M is the maximum gear number of diesel engine；
S1.2b. the initial driving step number U in current gear stepper motor is calculated according to formula shown in formula (2)N,
UN=UM/M×N (2)
In formula (2), UNIt is diesel engine in the initial driving step number of current gear stepper motor, UMFor the initial of M grades of stepper motors
It is the maximum gear number of diesel engine to drive step number, M, and N is diesel engine current gear number；
S1.3b. Driving Stepping Motor is to UNStep.
2. adaptive diesel engine step speed-adjusting method according to claim 1, it is characterised in that the step S1's is specific
Step is：
S1.1a. the value U stored in diesel engine step speed-adjusting system is readN；
S1.2a. Driving Stepping Motor is to UNStep.
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| CN201510464276.XA CN105114188B (en) | 2015-07-31 | 2015-07-31 | A kind of adaptive diesel engine step speed-adjusting method |
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| CN201510464276.XA CN105114188B (en) | 2015-07-31 | 2015-07-31 | A kind of adaptive diesel engine step speed-adjusting method |
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| CN105114188B true CN105114188B (en) | 2018-07-13 |
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| CN109931173A (en) * | 2019-03-11 | 2019-06-25 | 汉腾汽车有限公司 | A kind of control method of the inlet manifold stepper motor for idle speed adjustment |
| CN112412636B (en) * | 2020-11-18 | 2023-06-23 | 上海华兴数字科技有限公司 | Method and system for controlling engine speed of engineering machinery based on stepping motor |
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| CN1937392A (en) * | 2005-09-20 | 2007-03-28 | 比亚迪股份有限公司 | Alternating current machine speed charateristic control method for engine performance rack |
| CN101532441A (en) * | 2009-04-10 | 2009-09-16 | 北京工业大学 | Control method of idling speed double closed-loop of gaseous propellant engine |
| CN101968008A (en) * | 2010-09-30 | 2011-02-09 | 奇瑞汽车股份有限公司 | Error correcting method for step out of stepping motor |
| CN102787915A (en) * | 2012-06-06 | 2012-11-21 | 哈尔滨工程大学 | Diesel engine electronic speed adjusting method based on reinforced study of proportion integration differentiation (PID) controller |
| CN103410619A (en) * | 2013-08-27 | 2013-11-27 | 南车戚墅堰机车有限公司 | Diesel engine closed loop speed regulation system of diesel locomotive and speed regulation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982305A (en) * | 2014-03-18 | 2014-08-13 | 桂国华 | Software implementation method for eliminating speed regulation non-linear error of diesel stepping motor |
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- 2015-07-31 CN CN201510464276.XA patent/CN105114188B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1937392A (en) * | 2005-09-20 | 2007-03-28 | 比亚迪股份有限公司 | Alternating current machine speed charateristic control method for engine performance rack |
| CN101532441A (en) * | 2009-04-10 | 2009-09-16 | 北京工业大学 | Control method of idling speed double closed-loop of gaseous propellant engine |
| CN101968008A (en) * | 2010-09-30 | 2011-02-09 | 奇瑞汽车股份有限公司 | Error correcting method for step out of stepping motor |
| CN102787915A (en) * | 2012-06-06 | 2012-11-21 | 哈尔滨工程大学 | Diesel engine electronic speed adjusting method based on reinforced study of proportion integration differentiation (PID) controller |
| CN103410619A (en) * | 2013-08-27 | 2013-11-27 | 南车戚墅堰机车有限公司 | Diesel engine closed loop speed regulation system of diesel locomotive and speed regulation method thereof |
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Address after: The age of 412001 in Hunan Province, Zhuzhou Shifeng District Road No. 169 Patentee after: ZHUZHOU CRRC TIMES ELECTRIC Co.,Ltd. Address before: The age of 412001 in Hunan Province, Zhuzhou Shifeng District Road No. 169 Patentee before: ZHUZH CSR TIMES ELECTRIC Co.,Ltd. |