CN103234755B - A kind of Engine Block Test method and system - Google Patents
A kind of Engine Block Test method and system Download PDFInfo
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- CN103234755B CN103234755B CN201310177976.1A CN201310177976A CN103234755B CN 103234755 B CN103234755 B CN 103234755B CN 201310177976 A CN201310177976 A CN 201310177976A CN 103234755 B CN103234755 B CN 103234755B
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Abstract
The embodiment of the invention discloses a kind of Engine Block Test method, for multi-engined test; Described method comprises: receive many engine start command sent according to time order and function order; After receiving a described engine start command at every turn, from described multiple stage engine, choose one as present engine according to appointment order, start present engine, and, gather the data of present engine in start-up course, and be the mark that described data add present engine.The present invention is after receiving many startup command, every bar startup command is dispensed to different engines by the mode turned by wheel, and separate the data in collected different engine starting process by different tag slots, so just, multiple stage engine can be controlled test simultaneously, avoid simple the wasting in time caused because of reasons such as waits when only an engine being tested, improve testing efficiency.
Description
Technical Field
The embodiment of the invention relates to the field of engine testing, in particular to an engine testing method and system.
Background
In production, various engines need to be tested before being designed or shipped out of a factory. These tests are typically repeated over ten thousand times to ensure quality, for example, in an engine start test where a start command is sent to the engine over ten thousand times and data is collected during each start of the engine to evaluate the reliability, durability, etc. of the engine starting system.
The inventor finds that in the process of implementing the invention, a certain idle time exists in each test due to the reason that the engine needs to be cooled and the like. However, most of the current engine test systems are designed according to the use of a set of test systems to test a single engine, and do not need to work during the idle time in each test, and wait for the idle time, thereby resulting in low equipment utilization rate and very low test efficiency.
Disclosure of Invention
In view of this, an object of the embodiments of the present invention is to provide an engine testing method and system, so as to solve the problems of low equipment utilization rate and low testing efficiency when testing an engine.
On one hand, the embodiment of the invention provides an engine testing method, which is used for testing a plurality of engines; the method comprises the following steps:
receiving a plurality of engine starting commands sent according to the time sequence; after each receipt of one of the engine start commands,
selecting one of the plurality of engines as a current engine according to a designated order,
starting the current engine, and,
the method comprises the steps of collecting data of a current engine in a starting process, and adding an identifier of the current engine to the data.
Preferably, the number of the plurality of engines is determined based on the time taken for a single engine to start and the total time required for a single engine to be tested.
Preferably:
the multiple engine starting commands are mutually separated by a preset time length, and the preset time length is determined according to the time used in the starting process of a single engine; or,
the method further comprises the following steps: after receiving one engine starting command each time, selecting one engine as a current engine according to a specified sequence: and judging whether a preset time condition is met, if so, executing the subsequent steps, and otherwise, executing the subsequent steps when the preset time condition is met.
Preferably, when the step of determining whether the preset time condition is satisfied is included, the preset time condition is determined according to a time taken for a single engine starting process.
Preferably, the identifier is determined according to temperature information of a designated resistor in the current engine circuit, and the resistance values of the designated resistor in each engine circuit in the plurality of engines are different.
On the other hand, the embodiment of the invention provides an engine test system, which is used for testing a plurality of engines; the system comprises:
the starting command sending unit is used for sending a plurality of engine starting commands according to the time sequence;
an engine cycle test unit comprising:
the command receiving subunit is used for receiving the plurality of engine starting commands and triggering the engine selecting subunit after receiving one engine starting command each time;
the engine selection subunit is used for selecting one engine as the current engine according to a specified sequence;
the engine starting sub-unit is used for starting a current engine;
and the data acquisition subunit is used for acquiring data of the current engine in the starting process and adding the identifier of the current engine to the data.
Preferably, the number of the plurality of engines is determined based on the time taken for a single engine to start and the total time required for a single engine to be tested.
Preferably:
the start command transmitting unit includes: the timing subunit is used for enabling the plurality of engine starting commands to be mutually separated by a preset time length, the preset time length is determined according to the time used in the starting process of a single engine, and the sending subunit is used for sending the plurality of engine starting commands according to the time sequence; or,
the engine cycle test unit further comprises: and the time judgment subunit is used for judging whether a preset time condition is met or not, if so, the engine selection subunit is allowed to be triggered, and if not, the engine selection subunit is triggered again when the preset time condition is met.
Preferably, when the engine rotation testing unit further comprises a time judging subunit, the preset time condition is determined according to the time used for the starting process of a single engine.
Preferably, the identifier is determined according to temperature information of a designated resistor in the current engine circuit, and the resistance values of the designated resistor in each engine circuit in the plurality of engines are different.
After receiving a plurality of starting commands, each starting command is distributed to different engines in a rotating mode, each engine can be started in sequence for testing, and collected data in the starting process of different engines are distinguished through different identifications, so that a plurality of engines can be controlled to be tested simultaneously, time idle consumption caused by waiting and the like when only one engine is tested is avoided, the utilization efficiency of testing equipment is improved, and the testing efficiency is also improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart illustrating a method of an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating the connection of devices according to a first embodiment of the present invention;
FIG. 3 is a flow chart illustrating specific steps in one embodiment of the present invention;
FIG. 4 is a circuit diagram illustrating a second embodiment of the present invention;
FIG. 5 is a schematic diagram illustrating a third system of an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the invention, but it will be appreciated by those skilled in the art that the invention may be practiced without these specific details. In other instances, well-known methods, procedures, components, and circuits have not been described in detail as not to unnecessarily obscure aspects of the embodiments.
Example one
FIG. 1 is a flow chart of a method according to an embodiment of the present invention. The embodiment discloses an engine testing method, which is used for testing a plurality of engines; the method comprises the following steps:
s101, receiving a plurality of engine starting commands sent according to the time sequence. In the prior art, a plurality of starting commands exist, but the tested object only has one engine, so each starting command is used for starting the engine once, and the aim of testing is achieved by repeatedly starting the engine. In the present embodiment, it is still designed to receive multiple engine starting commands for better interfacing with the existing system, but the present embodiment is used for testing multiple engines simultaneously, and the following processes are quite different from the prior art. In a specific implementation, as shown in fig. 2, an extension module may be docked on an original starting system, so that multiple engines such as the engine 1 and the engine 2 may be further connected to perform a simultaneous test.
S102, after receiving one engine starting command every time, selecting one engine from the multiple engines as a current engine according to a specified sequence, starting the current engine, collecting data of the current engine in the starting process, and adding the identifier of the current engine to the data.
In this embodiment, the engines are sequentially started according to the designated sequence, one start command corresponds to one start of one engine, and after all the engines are started once, one test is finished, but the start command is continuously sent, so that the above process is repeated to perform the next test. The specified sequence is not limited in this embodiment.
Fig. 3 is a flowchart of the specific implementation of this embodiment, which includes:
s301, receiving an engine starting command.
S302, selecting one engine from the plurality of engines as a current engine according to a specified sequence.
And S303, starting the current engine.
And S304, collecting data of the current engine in the starting process.
And S305, adding the identification of the current engine to the data. Execution continues with S301.
Although the present invention relates to a plurality of engines, the time taken for starting each of the plurality of engines and the time taken for each test are all regarded as being indistinguishable. For example, in these engines, the time taken for each engine start-up process is 3s, while the total time required for one engine test, i.e., the time from the initial start until the next restart is possible, is 30 s. In the 30s, the first 1-3 s are the starting process of the engine, and the rest 27 seconds are consumed in the starting of other related accessories or the temperature reduction of the engine. In this embodiment or some other embodiments of the invention, to avoid the time spent waiting to the maximum extent, i.e. to fully utilize the remaining 27 seconds to test other engines, the number of engines tested simultaneously may be optimized: the number of the plurality of engines is determined according to the time used in the starting process of a single engine and the total time required for testing the single engine once. Specifically, in the present embodiment, 3 seconds are used for starting one engine, and the total time required for one test is 30 seconds, so that it is the most preferable to select 30/3=10 engines to perform the simultaneous test in the present embodiment, because this may not cause any waste of time. In other embodiments of the present invention, the number of the plurality of engines may be fewer or more, and the effect of simultaneously testing the plurality of engines and improving the testing efficiency can be achieved, but the time utilization rate may not be optimal.
In addition, in this embodiment, the data of each engine starting process is collected in a simplex manner, that is, only one engine is started each time, only the data of the engine currently being started is collected, and in order to distinguish the collected data of each engine, the data collected from each engine is added with the identifier corresponding to the engine in this embodiment. The present embodiment of the identifier is not limited, as long as each engine can be distinguished. For example, in this embodiment or some other embodiments of the present invention, the identifier is determined according to temperature information of a designated resistor in the current engine circuit, and the designated resistor in each of the plurality of engine circuits has a different resistance value. Because the resistance values are different, the heating values are different, the temperatures of the designated resistors are different, and therefore after the temperature information is used as a mark and is attached to the collected engine data, when thousands of starting data of multiple engines are gathered together, the data of different engines can be easily distinguished through the temperature information, and the data are guaranteed not to be disordered.
Example two
The method of the present embodiment is based on the previous embodiment, and is a further development based on the previous embodiment. In practice, the engine start commands may be pulse signals, but for various reasons the time intervals between the pulses may not be uniform, for example the time intervals between some pulses may be too short, so that the pulse signals may be uniformly spaced by passing them through a time warping module. Therefore, the method can further comprise:
after receiving one engine starting command every time, before selecting one engine as the current engine according to the appointed sequence, judging whether a preset time condition is met, if so, executing the subsequent steps, and if not, executing the subsequent steps when the preset time condition is met.
By setting a preset time condition, the pulse commands of 'fast' can be made to be 'slow', and finally the pulse commands are all in pace. Specifically, the preset time condition may be determined according to the time used for a single engine starting process, that is, the time used for the single engine starting process may be used to limit the time interval between each pulse command.
For example, if the starting time of the engine is 3s, and the time interval of each received pulse command may be less than 3s, the time interval of the pulse commands is uniformly regulated to 3s each time when each pulse command is received, that is, the pulse commands are not sent to an engine immediately after each pulse command is received, but a fixed starting command is sent to an engine every 3s to start the engine. Thus, after 3s, when the next starting command is sent to the next engine, the previous engine is just started and data acquisition is finished. Therefore, the time utilization rate can be improved to the maximum extent, and orderly data collection can be realized.
In the specific implementation, the circuit thereof can refer to fig. 4, in fig. 4, after the multiple pulse commands pass through the time timer, the multiple pulse commands are normalized into a single start command with the interval meeting the requirement and sent to the programmable shift register; in fig. 4, in order to fully utilize the pins, two engines are connected to each pin through a time-delay single-pole double-throw switch, one of the two engines is started when the pin is powered on, and the other engine is started when the pin is powered off, so that the two engines can be controlled by the single pin; when the programmable shift register receives a starting command, one pin is selected to output, and finally, a related engine is started.
Of course, in some embodiments of the present invention, the desired engine start commands may be generated directly, i.e., the engine start commands are separated from each other by a predetermined time interval, which is determined according to the time taken for a single engine start process. For example, the pulse command with fixed 3s interval is directly generated, so that the step and module of time warping can be omitted.
EXAMPLE III
Fig. 5 is a schematic diagram of a third system according to an embodiment of the invention. The embodiment corresponds to the two method embodiments, and provides an engine test system which is used for testing a plurality of engines; the system comprises:
a start command transmitting unit 501, configured to transmit a plurality of engine start commands in time order;
engine cycle testing unit 502, comprising:
a command receiving subunit 5021, configured to receive the plurality of engine start commands, and trigger the engine selecting subunit after receiving one of the engine start commands each time;
an engine selection subunit 5022, configured to select one engine as a current engine according to a specified order;
an engine starting subunit 5023 for starting the current engine;
and the data acquisition subunit 5024 is used for acquiring data of the current engine in the starting process and adding the identifier of the current engine to the data.
Preferably, the number of the plurality of engines is determined based on the time taken for a single engine to start and the total time required for a single engine to be tested.
Preferably:
the start command transmitting unit 501 includes: the timing subunit is used for enabling the plurality of engine starting commands to be mutually separated by a preset time length, the preset time length is determined according to the time used in the starting process of a single engine, and the sending subunit is used for sending the plurality of engine starting commands according to the time sequence; or,
the engine cycle testing unit 502 further includes: and the time judgment subunit is used for judging whether a preset time condition is met, if so, allowing the engine selection subunit to be triggered, and if not, triggering again when the preset time condition is met.
Preferably, when the engine rotation testing unit 502 further comprises a time judging subunit, the preset time condition is determined according to the time used for the starting process of a single engine.
Preferably, the identifier is determined according to temperature information of a designated resistor in the current engine circuit, and the designated resistor in each engine circuit in the plurality of engines has different resistance values
For the system embodiment, since it basically corresponds to the method embodiment, reference may be made to the partial description of the method embodiment for relevant points. The above-described system embodiments are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
The invention may be described in the general context of computer-executable instructions, such as program modules, being executed by a computer. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types. The invention may also be practiced in distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program modules may be located in both local and remote computer storage media including memory storage devices.
Those skilled in the art will appreciate that all or part of the steps in the above method embodiments may be implemented by a program to instruct relevant hardware to perform the steps, and the program may be stored in a computer-readable storage medium, which is referred to herein as a storage medium, such as: ROM, RAM, magnetic disk, optical disk, etc.
It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. The principles and embodiments of the present invention have been described herein using specific examples, which are presented solely to aid in the understanding of the methods and their core concepts; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (8)
1. An engine test method is characterized in that the method is used for testing a plurality of engines; the method comprises the following steps:
receiving a plurality of engine starting commands sent according to the time sequence; after each receipt of one of the engine start commands,
selecting one of the plurality of engines as a current engine according to a designated order,
starting the current engine, and,
collecting data of a current engine in a starting process, and adding an identifier of the current engine to the data;
the multiple engine starting commands are mutually separated by a preset time length, and the preset time length is determined according to the time used in the starting process of a single engine; or,
after receiving one engine starting command each time, selecting one engine as a current engine according to a specified sequence: and judging whether a preset time condition is met, if so, executing the subsequent steps, and otherwise, executing the subsequent steps when the preset time condition is met.
2. The method of claim 1 wherein the number of said plurality of engines is determined based on the time taken for a single engine start-up procedure and the total time required to perform a single test on a single engine.
3. The method of claim 1, wherein the predetermined time condition is determined based on the time taken for a single engine start process when the step of determining whether the predetermined time condition is satisfied is included.
4. The method of claim 1, wherein the indication is determined based on temperature information of a designated resistor in the current engine circuit, and wherein the designated resistor in each of the plurality of engine circuits has a different resistance value.
5. An engine test system is characterized by being used for testing a plurality of engines; the system comprises:
the starting command sending unit is used for sending a plurality of engine starting commands according to the time sequence;
an engine cycle test unit comprising:
the command receiving subunit is used for receiving the plurality of engine starting commands and triggering the engine selecting subunit after receiving one engine starting command each time;
the engine selection subunit is used for selecting one engine as the current engine according to a specified sequence;
the engine starting sub-unit is used for starting a current engine;
the data acquisition subunit is used for acquiring data of the current engine in the starting process and adding the identifier of the current engine to the data;
the start command transmitting unit includes: the timing subunit is used for enabling the plurality of engine starting commands to be mutually separated by a preset time length, the preset time length is determined according to the time used in the starting process of a single engine, and the sending subunit is used for sending the plurality of engine starting commands according to the time sequence; or,
the engine cycle test unit further comprises: and the time judgment subunit is used for judging whether a preset time condition is met or not, if so, the engine selection subunit is allowed to be triggered, and if not, the engine selection subunit is triggered again when the preset time condition is met.
6. The system of claim 5, wherein the number of said plurality of engines is determined based on the time taken for a single engine start-up procedure and the total time required to perform a single test on a single engine.
7. The system of claim 5, wherein when the engine cycling test unit further comprises a time determination subunit, the preset time condition is determined based on the time taken for a single engine start-up process.
8. The system of claim 5, wherein the indication is determined based on temperature information of a designated resistor in the current engine circuit, and wherein the designated resistor in each of the plurality of engine circuits has a different resistance value.
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| US5010487A (en) * | 1989-03-02 | 1991-04-23 | Coltec Industries Inc. | Computer-based engine diagnostic method |
| CN2171854Y (en) * | 1993-09-08 | 1994-07-13 | 孙林 | Intelligence engine detecting instrument |
| CN1884992A (en) * | 2005-06-22 | 2006-12-27 | 上海华依科技发展有限公司 | Engine testing system and testing method thereof |
| CN101251441A (en) * | 2008-03-20 | 2008-08-27 | 桂林电子科技大学 | Method and system for on-line monitoring car engine state |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7610799B2 (en) * | 2005-05-09 | 2009-11-03 | A&D Company, Ltd. | Engine measurement device |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5010487A (en) * | 1989-03-02 | 1991-04-23 | Coltec Industries Inc. | Computer-based engine diagnostic method |
| CN2171854Y (en) * | 1993-09-08 | 1994-07-13 | 孙林 | Intelligence engine detecting instrument |
| CN1884992A (en) * | 2005-06-22 | 2006-12-27 | 上海华依科技发展有限公司 | Engine testing system and testing method thereof |
| CN101251441A (en) * | 2008-03-20 | 2008-08-27 | 桂林电子科技大学 | Method and system for on-line monitoring car engine state |
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