CN109443774A - A kind of engine hot type platform revolution speed control system and its method - Google Patents
A kind of engine hot type platform revolution speed control system and its method Download PDFInfo
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- CN109443774A CN109443774A CN201811606035.4A CN201811606035A CN109443774A CN 109443774 A CN109443774 A CN 109443774A CN 201811606035 A CN201811606035 A CN 201811606035A CN 109443774 A CN109443774 A CN 109443774A
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- type platform
- voltage signal
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000012360 testing method Methods 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000002955 isolation Methods 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 3
- 230000008450 motivation Effects 0.000 description 7
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D13/00—Control of linear speed; Control of angular speed; Control of acceleration or deceleration, e.g. of a prime mover
- G05D13/62—Control of linear speed; Control of angular speed; Control of acceleration or deceleration, e.g. of a prime mover characterised by the use of electric means, e.g. use of a tachometric dynamo, use of a transducer converting an electric value into a displacement
Abstract
The invention discloses engine thermal testing fields, and in particular to a kind of engine hot type platform revolution speed control system and its method, including accelerator pedal signal output end, PID microprocessor and electronic switch.The present invention is just directly persistently provided the voltage signal that the later period is used to that Engine ECU to be supported to keep engine speed by PID microprocessor, the foot of test job personnel is liberated, also avoid the unstable situation for causing engine speed unstable of voltage output, and have the characteristics that speed is fast, stability is high, good reliability, fluctuation it is small.
Description
Technical field
The present invention relates to engine thermal testing fields, and in particular to a kind of engine hot type platform revolution speed control system and its side
Method.
Background technique
In automobile engine heat examination Working gantry, operator needs performance ginseng of the test engine under different rotating speeds
Number.Current control engine speed variation most conventional methods are exactly to be realized by artificial or motor control gas pedal.But
It is this method since the mechanical property of gas pedal itself is difficult to realize steadily control the revolving speed of engine, in operation,
Revolving speed can and preset value have certain deviation.
Summary of the invention
The purpose of the present invention is to provide a kind of engine hot type platform revolution speed control system and its methods, solve and exist at present
During automobile engine heat examination, it is difficult to precisely by the control of throttle motivation revolving speed, and unstable problem.
In order to solve the above technical problems, the invention adopts the following technical scheme:
A kind of engine hot type platform revolution speed control system:
Including accelerator pedal signal output end, target voltage signal needed for being used for output engine rotating speed of target；
Including PID microprocessor, it is used to receive the target voltage signal of accelerator pedal signal output end output, acquisition hair
Motivation rotary speed information persistently exports the target voltage signal for maintaining engine target rotating speed to Engine ECU；
Including electronic switch, one end is connected to Engine ECU, two switched terminals of the other end: a switching
Terminal is connected to accelerator pedal signal output end, another switched terminal is connected to PID microprocessor, and electronic switch
Control terminal be connected to PID microprocessor receive control signal.
Further technical solution is that the PID microprocessor is connected with the rotary speed information output end of Engine ECU, is used
In acquisition engine speed information.
Further technical solution is that the PID microprocessor is connected with the end PC, for receiving the engine of the end PC output
Rotary speed information.
Further technical solution is that the end PC is connected with the rotary speed information output end of Engine ECU, for acquiring hair
Motivation rotary speed information.
Further technical solution is that the PID microprocessor is all provided on the signal transmssion line road of external output input
There is jamproof isolation module.
Further technical solution is that this system further includes by being the system power supply of system power supply, institute after isolation module
It states system power supply and test power is connected to by power supply processing module.
A kind of engine hot type platform method for controlling number of revolution, comprising the following steps:
Above-mentioned engine hot type platform revolution speed control system is built, and the initial position of electronic switch is to turn on and starts
Machine ECU and accelerator pedal signal output end；
By accelerator pedal signal output end according to the angle of trampling of accelerator pedal, needed for output engine rotating speed of target
Target voltage signal；
PID microprocessor and Engine ECU receive the target voltage signal of accelerator pedal signal output end output jointly；
Engine ECU controls engine speed according to target voltage signal and reaches rotating speed of target；
PID microcomputer reads control electronic switch and jump, connect PID to target voltage signal and rotating speed of target
Microprocessor and the transmission of Engine ECU signal, disconnect accelerator pedal signal output end and the transmission of Engine ECU signal；
PID microprocessor persistently exports the target voltage signal for maintaining engine target rotating speed to Engine ECU.
Above-mentioned engine hot type platform method for controlling number of revolution, further, the PID microprocessor turn from Engine ECU
Fast information output collects engine speed information, then the voltage signal by preset with engine speed information matches to
The transmission of Engine ECU signal.
Above-mentioned engine hot type platform method for controlling number of revolution, further, the PID microprocessor obtain engine from the end PC
Then rotary speed information transmits the preset voltage signal with engine speed information matches to Engine ECU signal.
Above-mentioned engine hot type platform method for controlling number of revolution, further, the rotary speed information of the end PC from the Engine ECU is defeated
Outlet collects engine speed information, then by engine speed message transport to PID microprocessor, while showing at the end PC
Rotary speed information and voltage signal values.
Compared with prior art, the beneficial effects of the present invention are: the present invention will be used to that Engine ECU be supported to keep hair in the later period
The voltage signal of motivation revolving speed is just directly persistently provided by PID microprocessor, has been liberated the foot of test job personnel, has been also avoided
The unstable situation for causing engine speed unstable of voltage output, and with speed is fast, stability is high, good reliability, wave
Move the features such as small.
Detailed description of the invention
Fig. 1 is the hardware block diagram of inventive engine hot type platform revolution speed control system.
Fig. 2 is the functional block diagram of inventive engine hot type platform revolution speed control system.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Figures 1 and 2 show that one embodiment of inventive engine hot type platform revolution speed control system: a kind of engine thermal
Formula platform revolution speed control system (abbreviation control system in Fig. 1):
Including accelerator pedal signal output end, target voltage signal needed for being used for output engine rotating speed of target；
Including PID microprocessor, it is used to receive the target voltage signal of accelerator pedal signal output end output, acquisition hair
Motivation rotary speed information persistently exports the target voltage signal for maintaining engine target rotating speed to Engine ECU；
Including electronic switch, one end is connected to Engine ECU, two switched terminals of the other end: a switching
Terminal is connected to accelerator pedal signal output end, another switched terminal is connected to PID microprocessor, and electronic switch
Control terminal be connected to PID microprocessor receive control signal.
Control method, comprising the following steps:
Above-mentioned engine hot type platform revolution speed control system is built, and the initial position of electronic switch is to turn on and starts
Machine ECU and accelerator pedal signal output end；
By accelerator pedal signal output end according to the angle of trampling of accelerator pedal, needed for output engine rotating speed of target
Target voltage signal；
PID microprocessor and Engine ECU receive the target voltage signal of accelerator pedal signal output end output jointly；
Engine ECU controls engine speed according to target voltage signal and reaches rotating speed of target；
PID microcomputer reads control electronic switch and jump, connect PID to target voltage signal and rotating speed of target
Microprocessor and the transmission of Engine ECU signal, disconnect accelerator pedal signal output end and the transmission of Engine ECU signal；
PID microprocessor persistently exports the target voltage signal for maintaining engine target rotating speed to Engine ECU.
The working principle of the present embodiment is: as test job personnel, when trampling gas pedal, and accelerator pedal signal output end
The target voltage signal to match with rotating speed of target can be exported, if this target voltage signal is transmitted directly to engine
ECU, then Engine ECU can control engine and reach rotating speed of target, if but test job personnel will be to the hair under the revolving speed
Motivation parameter is acquired, then the target electricity for needing to keep the angle of gas pedal and accelerator pedal signal output end can export
It presses signal constant, is manually extremely difficult to reach the requirement, so the present invention is defeated using PID microprocessor reception accelerator pedal signal
The target voltage signal of outlet output, then rotating speed of target and target voltage signal are matched, and are simulated and continue to export
Target voltage signal will be connected PID microprocessor using electronic switch and Engine ECU signal transmits, and disconnected throttle and step on
Partitioned signal output end and the transmission of Engine ECU signal, in this way support Engine ECU keep the voltage signal of engine speed just
It is directly persistently provided by PID microprocessor, has liberated the foot of test job personnel, also avoid that voltage output is unstable to be caused to send out
The fixed situation of motivation rotary speed unstabilization.
A preferred embodiment of engine hot type platform revolution speed control system according to the present invention, the PID microprocessor and
The rotary speed information output end of Engine ECU connects, for acquiring engine speed information.In the present embodiment, it to be used for the micro- place PID
The engine speed information that reason device is matched directly is obtained from Engine ECU by PID microprocessor.
A preferred embodiment of engine hot type platform revolution speed control system according to the present invention, the PID microprocessor and
The end PC connection, for receiving the engine speed information of the end PC output.In the present embodiment, matched for PID microprocessor
Engine speed information, and be also can be directly inputted with the end PC, abandon gas pedal completely, at the same also can use connection PC
The display device at end shows current engine speed and voltage value.
A preferred embodiment of engine hot type platform revolution speed control system according to the present invention, the end PC and engine
The rotary speed information output end of ECU connects, for acquiring engine speed information.In the present embodiment, the end PC not only can directly to
Voltage signal needed for the output of PID microprocessor, can also obtain directly from Engine ECU.
A preferred embodiment of engine hot type platform revolution speed control system, the PID microprocessor exist according to the present invention
Externally the signal transmssion line road of output input is equipped with jamproof isolation module.Isolation module ensures the anti-dry of whole system
Ability is disturbed, the reliability of system is improved.
Further technical solution is that this system further includes by being the system power supply of system power supply, institute after isolation module
It states system power supply and test power is connected to by power supply processing module.
According to engine hot type platform method for controlling number of revolution, as a preferred embodiment, the PID microprocessor is from engine
The rotary speed information output end of ECU collects engine speed information, then by preset and engine speed information matches electricity
Signal is pressed to transmit to Engine ECU signal.
According to engine hot type platform method for controlling number of revolution, as a preferred embodiment, the PID microprocessor is obtained from the end PC
Then engine speed information is transmitted the preset voltage signal with engine speed information matches to Engine ECU signal.
According to engine hot type platform method for controlling number of revolution, as a preferred embodiment, revolving speed of the end PC from Engine ECU
Information output collects engine speed information, then by engine speed message transport to PID microprocessor, while in PC
End display rotary speed information and voltage signal values.
Whether work in order to facilitate the understanding PID microprocessor of test job personnel's straight tube, so as to unclamp trample it is foot-operated
The foot of plate, PID microprocessor are configured with working condition warning light.
Although reference be made herein to invention has been described for multiple explanatory embodiments of the invention, however, it is to be understood that
Those skilled in the art can be designed that a lot of other modification and implementations, these modifications and implementations will fall in this Shen
It please be within disclosed scope and spirit.More specifically, disclose in the application, drawings and claims in the range of, can
With the building block and/or a variety of variations and modifications of layout progress to theme combination layout.In addition to building block and/or layout
Outside the modification and improvement of progress, to those skilled in the art, other purposes also be will be apparent.
Claims (10)
1. a kind of engine hot type platform revolution speed control system, it is characterised in that:
Including accelerator pedal signal output end, target voltage signal needed for being used for output engine rotating speed of target；
It including PID microprocessor, is used to receive the target voltage signal of accelerator pedal signal output end output, acquires engine
Rotary speed information persistently exports the target voltage signal for maintaining engine target rotating speed to Engine ECU；
Including electronic switch, one end is connected to Engine ECU, two switched terminals of the other end a: switched terminal
It is connected to accelerator pedal signal output end, another switched terminal is connected to PID microprocessor, and the control of electronic switch
End processed is connected to PID microprocessor and receives control signal.
2. engine hot type platform revolution speed control system according to claim 1, it is characterised in that: the PID microprocessor
It is connected with the rotary speed information output end of Engine ECU, for acquiring engine speed information.
3. engine hot type platform revolution speed control system according to claim 1 or 2, it is characterised in that: the PID micro process
Device is connected with the end PC, for receiving the engine speed information of the end PC output.
4. engine hot type platform revolution speed control system according to claim 3, it is characterised in that: the end PC and engine
The rotary speed information output end of ECU connects, for acquiring engine speed information.
5. engine hot type platform revolution speed control system according to claim 1, it is characterised in that: the PID microprocessor
Jamproof isolation module is equipped on the signal transmssion line road of external output input.
6. engine hot type platform revolution speed control system according to claim 1, it is characterised in that: this system further includes passing through
It is the system power supply of system power supply after isolation module, the system power supply is connected to test power by power supply processing module.
7. a kind of engine hot type platform method for controlling number of revolution, it is characterised in that the following steps are included:
Build the engine hot type platform revolution speed control system as described in claim 1~6 any one claim, and electronics
The initial position of switching switch is to turn on Engine ECU and accelerator pedal signal output end；
By accelerator pedal signal output end according to the angle of trampling of accelerator pedal, target needed for output engine rotating speed of target
Voltage signal；
PID microprocessor and Engine ECU receive the target voltage signal of accelerator pedal signal output end output jointly；
Engine ECU controls engine speed according to target voltage signal and reaches rotating speed of target；
PID microcomputer reads control electronic switch and jump, connect the micro- place PID to target voltage signal and rotating speed of target
Device and the transmission of Engine ECU signal are managed, accelerator pedal signal output end and the transmission of Engine ECU signal are disconnected；
PID microprocessor persistently exports the target voltage signal for maintaining engine target rotating speed to Engine ECU.
8. a kind of engine hot type platform method for controlling number of revolution according to claim 7, it is characterised in that: the micro- place PID
It manages device and collects engine speed information from the rotary speed information output end of Engine ECU, then by preset and engine speed
The voltage signal of information matches is transmitted to Engine ECU signal.
9. a kind of engine hot type platform method for controlling number of revolution according to claim 7, it is characterised in that: the micro- place PID
It manages device and obtains engine speed information from the end PC, then the voltage signal by preset with engine speed information matches is to starting
The transmission of machine ECU signal.
10. a kind of engine hot type platform method for controlling number of revolution according to claim 7 or 9, it is characterised in that: the end PC
Engine speed information is collected from the rotary speed information output end of Engine ECU, then by engine speed message transport to PID
Microprocessor, while rotary speed information and voltage signal values are shown at the end PC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811606035.4A CN109443774B (en) | 2018-12-26 | 2018-12-26 | Engine heating type table rotating speed control system and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811606035.4A CN109443774B (en) | 2018-12-26 | 2018-12-26 | Engine heating type table rotating speed control system and method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109443774A true CN109443774A (en) | 2019-03-08 |
| CN109443774B CN109443774B (en) | 2024-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811606035.4A Active CN109443774B (en) | 2018-12-26 | 2018-12-26 | Engine heating type table rotating speed control system and method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112033685A (en) * | 2020-10-10 | 2020-12-04 | 东风汽车集团有限公司 | Engine extremely-low load rotating speed control method based on thermal test bench and storage medium |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112033685A (en) * | 2020-10-10 | 2020-12-04 | 东风汽车集团有限公司 | Engine extremely-low load rotating speed control method based on thermal test bench and storage medium |
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| CN109443774B (en) | 2024-04-12 |
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Address after: Floor 1, Building 10, Minshan Electromechanical Industrial Park, High tech Zone, Mianyang City, Sichuan Province, 621000 Applicant after: MIANYANG EFOUNTEX INTELLIGENT EQUIPMENT CO.,LTD. Address before: 621000 No.95, east section of Puming South Road, hi tech Zone, Mianyang City, Sichuan Province Applicant before: MIANYANG EFOUNTEX INTELLIGENT EQUIPMENT CO.,LTD. |
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