CN114216683B - Engine start-stop off-line detection mode control method - Google Patents
Engine start-stop off-line detection mode control method Download PDFInfo
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- CN114216683B CN114216683B CN202111528673.0A CN202111528673A CN114216683B CN 114216683 B CN114216683 B CN 114216683B CN 202111528673 A CN202111528673 A CN 202111528673A CN 114216683 B CN114216683 B CN 114216683B
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- 238000001514 detection method Methods 0.000 title claims abstract description 85
- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 claims abstract description 25
- 238000011217 control strategy Methods 0.000 claims abstract description 8
- 238000003825 pressing Methods 0.000 claims description 15
- 238000003860 storage Methods 0.000 claims description 8
- 230000003213 activating effect Effects 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 230000004913 activation Effects 0.000 claims description 4
- 230000000452 restraining effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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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
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Abstract
The invention discloses a control method for an engine start-stop off-line detection mode, which comprises the steps of implementing a control strategy of the engine start-stop off-line detection mode through an engine controller ECU; after entering the start-stop off-line detection mode, the enabling condition of the automatic start-stop function can not be met by the environment of a shielded part of vehicles when the vehicles are just off line or in a workshop so as to enter the start-stop function under the factory production environment and normal beats, and the workshop production detection personnel can conveniently and normally detect whether the start-stop function of the engine is normal or not. By adopting the technical scheme, the automatic start-stop function can be shielded from being met when part of vehicles just come off line or the workshop environment can not meet the enabling conditions of the automatic start-stop function so as to enter the start-stop function under the production beat of a factory and the environment, and the problem that the normal detection of the start-stop function of an engine by workshop production detection personnel is solved.
Description
Technical Field
The invention belongs to the technical field of detection in automobile production, and relates to the technology of product offline detection in the automobile production process, in particular to the technology of engine start-stop detection. More particularly, the present invention relates to a method for controlling an engine start-stop off-line detection mode.
Background
The engine start-stop system is a complete control system which can automatically start an automobile when the automobile is required to start in a short-time stopping period; the start-stop system has the effects that the engine is stopped in the automobile stop time period, the emission of harmful gas of the engine can be effectively reduced, the oil consumption is reduced, and meanwhile, the mute driving feeling of a customer in the application scene of waiting for traffic lights is improved. Therefore, the existing vehicles all have the function of an automatic start-stop system of the engine.
The conditions and signals for the engine start-stop system to trigger automatic stop and start are very numerous, such as: a vehicle speed signal of the whole vehicle; an engine speed signal; a battery signal; an engine water temperature signal; an air conditioner request signal; a brake pedal signal; a throttle signal; gradient conditions; ambient temperature conditions; etc.
However, when the vehicle is just off-line in the production line, because of the initial state of the vehicle, many conditions and signals associated with the start and stop of the engine are not generated yet, and thus the automatic stop conditions cannot be satisfied, for example: the state signal of the storage battery after the vehicle is off line does not meet the start-stop condition; the ambient temperature at low temperature in winter does not meet the start-stop condition; the water temperature of the engine at low temperature does not meet the start-stop condition; the diagnosis of the engine itself does not meet the start-stop condition; and the like, which results in the failure to detect whether the engine start-stop system is normal or not after the vehicle is taken off line.
The prior art that has been searched includes the following patent documents:
1. an engine start-stop system and an engine start-stop control method (CN 201310511351.4);
2. An engine start-stop control system (CN 201310261295.3);
3. An engine start-stop control method and apparatus (CN 201910940323.1).
The above document does not solve the above-mentioned problems that occur in the detection of vehicles when they are taken off the production line.
Disclosure of Invention
The invention provides a control method for an engine start-stop off-line detection mode, and aims to solve the problem that whether the function of an engine start-stop system is normal cannot be detected after a vehicle is off-line.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
The control method of the engine start-stop off-line detection mode is applied to off-line detection of mass production vehicles in factory production, and enters the start-stop off-line detection mode according to a specified operation program; implementing a control strategy of an engine start-stop off-line detection mode through an engine controller ECU; after entering the start-stop off-line detection mode, the enabling condition of the automatic start-stop function can not be met by the environment of a shielded part of vehicles when the vehicles are just off line or in a workshop so as to enter the start-stop function under the factory production environment and normal beats, and the workshop production detection personnel can conveniently and normally detect whether the start-stop function of the engine is normal or not.
The start-stop calibration amount is restrained through a offline detection mode in the engine controller ECU, and the start state of an automatic stop restraining item in the offline detection mode is set, and the method comprises the following steps: closing the storage battery judging signal, closing the environment temperature judging signal and closing the engine water temperature condition judging signal; therefore, the condition that the starting and stopping operation state is not met after the vehicles are off line is not judged, the engine starting and stopping system can automatically stop, and the detection requirement of the starting and stopping function after the vehicles are off line is met.
The start-stop off-line detection mode is activated by the engine controller ECU, which is required to simultaneously receive a long-time pressing signal of the start-stop switch, a brake pedal signal and an accelerator pedal signal, and can be activated after the conditions are met through the internal judgment logic through special operation.
The special operation process of the control method for activating the offline detection mode is as follows:
step 1, powering up a vehicle key, and not starting an engine;
step2, pressing a main switch of a start-stop function, simultaneously pressing a brake pedal and an accelerator pedal, and keeping for 3 seconds;
step 3, simultaneously loosening a main switch with a start-stop function, a brake pedal and an accelerator pedal, and keeping for 2 seconds;
step 4, pressing a main switch of a start-stop function, simultaneously pressing a brake pedal and an accelerator pedal, and keeping for 3 seconds;
step 5, simultaneously loosening a main switch, a brake pedal and an accelerator pedal of the start-stop function;
And 6, activating the offline detection mode, and entering the start-stop offline detection mode.
When the operations of step 2, step 3 and step 4 are performed, the operator may fail to enter the offline detection mode because the operation sequence and time are not satisfactory, and the operations of step 2, step 3 and step 4 need to be repeated for a plurality of times.
In the repetition process of the step 2, the step 3 and the step 4, if the state of the start-stop function main switch is still closed after the step 4 is completed, the start-stop function main switch needs to be pressed again at the moment to switch the state of the start-stop function main switch to be opened, and then the offline detection mode can be performed.
After entering the offline detection mode, the start-stop control strategy is consistent with that in the normal mode except that part of the automatic stop enabling conditions are shielded and are not used for judgment.
And in the activation state of the start-stop off-line detection mode, the engine is shut down or the whole vehicle is powered down, and the start-stop off-line detection mode can be exited.
The start-stop function main switch is arranged on the air conditioner panel.
The start-stop function main switch is connected with the whole vehicle gateway CGW through a CAN bus; the whole vehicle gateway CGW is also connected with the engine controller ECU and the whole vehicle controller BCM through a CAN bus; the whole vehicle controller BCM is connected with the storage battery sensor IBS through a signal line.
By adopting the technical scheme, the automatic start-stop function can be shielded from meeting the enabling condition of the automatic start-stop function when part of vehicles come off line or in the workshop environment, so that the start-stop function can be started under the production beat and the environment of a factory, and the problem that the normal detection of the start-stop function of an engine by workshop production detection personnel is solved.
Drawings
The contents of the drawings and the marks in the drawings are briefly described as follows:
FIG. 1 is a schematic diagram of the signal input and output of a starter start-stop switch of the present invention;
wherein: CGW is a whole vehicle gateway, ECU is an engine controller, IBS is a storage battery sensor, and BCM is a whole vehicle controller;
FIG. 2 is a schematic diagram of engine start-stop off-line detection mode activation logic.
Detailed Description
The following detailed description of the embodiments of the invention, given by way of example only, is presented in the accompanying drawings to aid in a more complete, accurate, and thorough understanding of the inventive concepts and aspects of the invention by those skilled in the art.
The invention belongs to the technical field of electronic control of gasoline engines, and relates to an automobile engine start-stop off-line detection technology. The control principle and control process of the present invention as shown in fig. 1 and 2 are a control method of an engine start-stop off-line detection mode, wherein the start-stop off-line detection mode is applied to off-line detection of mass production vehicles in factory production, and enters the start-stop off-line detection mode according to a specified operation program.
In order to solve the problems in the prior art and overcome the defects of the prior art and realize the aim of solving the problem that whether the function of an engine start-stop system is normal or not can not be detected after a vehicle is off line, the invention adopts the following technical scheme:
The invention relates to a control method of an engine start-stop off-line detection mode, which is to implement a control strategy of the engine start-stop off-line detection mode through an engine controller ECU; after entering the start-stop off-line detection mode, the enabling condition of the automatic start-stop function can not be met by the environment of a shielded part of vehicles when the vehicles are just off line or in a workshop so as to enter the start-stop function under the factory production environment and normal beats, and the workshop production detection personnel can conveniently and normally detect whether the start-stop function of the engine is normal or not.
The invention provides an engine start-stop off-line detection mode control strategy aiming at the problem that whether the function of an engine start-stop system is normal cannot be detected after a vehicle is off-line. By adopting the technical scheme, the automatic start-stop function can be shielded from being met when part of vehicles just come off line or the workshop environment can not meet the enabling conditions of the automatic start-stop function so as to enter the start-stop function under the production beat of a factory and the environment, and the problem that the normal detection of the start-stop function of an engine by workshop production detection personnel is solved.
The invention suppresses the start-stop calibration amount through the offline detection mode in the engine controller ECU, and sets the start state of the automatic stop suppression item under the offline detection mode, such as: closing a storage battery judgment signal, closing an environment temperature judgment signal, closing an engine water temperature condition judgment signal and the like; therefore, the condition that the starting and stopping operation state is not met after the vehicles are off line is not judged, the engine starting and stopping system can automatically stop, and the detection requirement of the starting and stopping function after the vehicles are off line is met.
The start-stop off-line detection mode is activated by the engine controller ECU, which is required to simultaneously receive a long-time pressing signal of the start-stop switch, a brake pedal signal and an accelerator pedal signal, and can be activated after the conditions are met through the internal judgment logic through special operation.
The method is characterized in that the method is required to be operated according to a specified mode to enter a start-stop off-line detection mode, and after entering the start-stop off-line detection mode, the method can shield that the enabling condition of an automatic start-stop function cannot be met when part of vehicles just come off line or in a workshop environment so as to enter the start-stop function under the production beat and the environment of a factory, and is convenient for workshop production detection personnel to normally detect whether the start-stop function of an engine is normal or not.
As shown in fig. 2: the special operation process of the control method for activating the offline detection mode is as follows:
step 1, powering up a vehicle key, and not starting an engine;
Step 2, pressing a main switch of a start-stop function, simultaneously pressing a brake pedal and an accelerator pedal, and keeping for 3 seconds;
Step 3, simultaneously loosening a main switch with a start-stop function, a brake pedal and an accelerator pedal, and keeping for 2 seconds;
Step4, pressing a main switch of a start-stop function, simultaneously pressing a brake pedal and an accelerator pedal, and keeping for 3 seconds;
step 5, simultaneously loosening a main switch, a brake pedal and an accelerator pedal of the start-stop function;
And 6, activating the offline detection mode, and entering the start-stop offline detection mode.
As shown in fig. 1:
the start-stop function main switch is arranged on the air conditioner panel.
The start-stop function main switch is connected with the whole vehicle gateway CGW through a CAN bus; the whole vehicle gateway CGW is also connected with the engine controller ECU and the whole vehicle controller BCM through a CAN bus; the whole vehicle controller BCM is connected with the storage battery sensor IBS through a signal line.
Further:
When the operations of step 2, step 3 and step 4 are performed, the operator may fail to enter the offline detection mode because the operation sequence and time are not satisfactory, and the operations of step 2, step 3 and step 4 need to be repeated for a plurality of times.
In the repeating process of the step 2, the step 3 and the step 4, after the step 4 is completed, the main switch state of the start-stop function is still closed, and the main switch state of the start-stop function needs to be switched to be opened again at the moment so as to perform the offline detection mode.
After entering the offline detection mode, the start-stop control strategy is consistent with that in the normal mode except that part of the automatic stop enabling conditions are shielded and are not used for judgment.
And in the activation state of the start-stop off-line detection mode, the engine is shut down or the whole vehicle is powered down, and the start-stop off-line detection mode can be exited.
While the invention has been described above with reference to the accompanying drawings, it will be apparent that the invention is not limited to the above embodiments, but is capable of being modified or applied directly to other applications without modification, as long as various insubstantial modifications of the method concept and technical solution of the invention are adopted, all within the scope of the invention.
Claims (7)
1. The control method is applied to the offline detection of mass-produced vehicles in factory production, and enters a start-stop offline detection mode according to a specified operation program;
The method is characterized in that:
Implementing a control strategy of an engine start-stop off-line detection mode through an engine controller ECU; after entering a start-stop off-line detection mode, the enabling condition of an automatic start-stop function can not be met by a part of vehicles just off line or the workshop environment, so that the start-stop function can be entered under the factory production environment and normal beats, and the workshop production detection personnel can conveniently and normally detect whether the start-stop function of an engine is normal or not;
The start-stop calibration amount is restrained through a offline detection mode in the engine controller ECU, and the start state of an automatic stop restraining item in the offline detection mode is set, and the method comprises the following steps: closing the storage battery judging signal, closing the environment temperature judging signal and closing the engine water temperature condition judging signal; therefore, the condition that the starting and stopping operation state is not met after the vehicles are off line is not judged, the engine starting and stopping system can automatically stop, and the detection requirement of the starting and stopping function after the vehicles are off line is met;
The start-stop off-line detection mode is activated by the engine controller ECU, which is required to simultaneously receive a long-time pressing signal of a start-stop switch, a brake pedal signal and an accelerator pedal signal, and can be activated after the conditions are met through internal judgment logic by special operation;
the special operation process of the control method for activating the offline detection mode is as follows:
step 1, powering up a vehicle key, and not starting an engine;
step2, pressing a main switch of a start-stop function, simultaneously pressing a brake pedal and an accelerator pedal, and keeping for 3 seconds;
step 3, simultaneously loosening a main switch with a start-stop function, a brake pedal and an accelerator pedal, and keeping for 2 seconds;
step 4, pressing a main switch of a start-stop function, simultaneously pressing a brake pedal and an accelerator pedal, and keeping for 3 seconds;
step 5, simultaneously loosening a main switch, a brake pedal and an accelerator pedal of the start-stop function;
And 6, activating the offline detection mode, and entering the start-stop offline detection mode.
2. The engine start-stop off-line detection mode control method according to claim 1, characterized in that: when the operations of step 2, step 3 and step 4 are performed, the operator may fail to enter the offline detection mode because the operation sequence and time are not satisfactory, and the operations of step 2, step 3 and step 4 need to be repeated for a plurality of times.
3. The engine start-stop off-line detection mode control method according to claim 2, characterized in that: in the repetition process of the step 2, the step 3 and the step 4, if the state of the start-stop function main switch is still closed after the step 4 is completed, the start-stop function main switch needs to be pressed again at the moment to switch the state of the start-stop function main switch to be opened, and then the offline detection mode can be performed.
4. The engine start-stop off-line detection mode control method according to claim 1, characterized in that: after entering the offline detection mode, the start-stop control strategy is consistent with that in the normal mode except that part of the automatic stop enabling conditions are shielded and are not used for judgment.
5. The engine start-stop off-line detection mode control method according to claim 1, characterized in that: and in the activation state of the start-stop off-line detection mode, the engine is shut down or the whole vehicle is powered down, and the start-stop off-line detection mode can be exited.
6. The engine start-stop off-line detection mode control method according to claim 1, characterized in that: the start-stop function main switch is arranged on the air conditioner panel.
7. The engine start-stop off-line detection mode control method according to claim 1, characterized in that: the start-stop function main switch is connected with the whole vehicle gateway CGW through a CAN bus; the whole vehicle gateway CGW is also connected with the engine controller ECU and the whole vehicle controller BCM through a CAN bus; the whole vehicle controller BCM is connected with the storage battery sensor IBS through a signal line.
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| CN112539937A (en) * | 2020-12-11 | 2021-03-23 | 奇瑞汽车股份有限公司 | Method for testing start-stop reliability of 48V system |
| CN113551856A (en) * | 2021-07-21 | 2021-10-26 | 安徽江淮汽车集团股份有限公司 | Off-line detection method for pipeline leakage of fuel vehicle |
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| US9181915B2 (en) * | 2011-08-31 | 2015-11-10 | Bae Systems Controls Inc. | Engine automatic stop/start mechanism |
| CN104192138B (en) * | 2014-08-19 | 2019-01-25 | 奇瑞汽车股份有限公司 | Engine closing method and system |
| CN108663218B (en) * | 2018-04-24 | 2019-06-25 | 武汉理工大学 | A kind of light-duty hybrid vehicle off-line detection system of 48V and method |
| CN109358598A (en) * | 2018-10-12 | 2019-02-19 | 中汽研（天津）汽车工程研究院有限公司 | Pure electric automobile off-line test device and method based on UDS diagnosing protocol |
| CN112558045B (en) * | 2020-12-07 | 2024-03-15 | 福建（泉州）哈工大工程技术研究院 | Offline acceptance method for multi-line laser radar function of automatic driving equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112539937A (en) * | 2020-12-11 | 2021-03-23 | 奇瑞汽车股份有限公司 | Method for testing start-stop reliability of 48V system |
| CN113551856A (en) * | 2021-07-21 | 2021-10-26 | 安徽江淮汽车集团股份有限公司 | Off-line detection method for pipeline leakage of fuel vehicle |
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