CN111855214A - Engine detection method and system and vehicle - Google Patents
Engine detection method and system and vehicle Download PDFInfo
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- CN111855214A CN111855214A CN201910350043.5A CN201910350043A CN111855214A CN 111855214 A CN111855214 A CN 111855214A CN 201910350043 A CN201910350043 A CN 201910350043A CN 111855214 A CN111855214 A CN 111855214A
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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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- 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
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Abstract
The invention provides an engine detection method, an engine detection system and a vehicle, wherein the method comprises the steps of receiving a remote detection instruction, judging whether an engine of the vehicle is started and whether a transmission is in a neutral position, and if so, sending a diagnosis instruction to an engine controller; controlling the engine to operate in a preset idling state and reading the temperature of the engine coolant and an actual rotating speed value according to the diagnosis instruction; when the temperature of the engine coolant reaches a preset temperature threshold value, the temperature of the engine coolant and an actual rotating speed value are sent to the vehicle-mounted intelligent communication terminal within a preset first time interval; and when the preset first time interval is finished, controlling the engine to operate in a free idle state, and sending the temperature of the engine coolant and the actual rotating speed value to the vehicle-mounted intelligent communication terminal in the preset second time interval. According to the invention, the vehicle-mounted T-BOX is remotely activated, and the vehicle-mounted T-BOX controls the engine to work at the specified idle speed and obtains the temperature of the engine coolant and the actual rotating speed value, so that the problem of inaccuracy in the conventional double-idle speed test is solved.
Description
Technical Field
The invention relates to the technical field of automobile detection, in particular to an engine detection method, an engine detection system and a vehicle.
Background
According to the emission limit value and the measurement method (a double-idle speed method and a simple working condition method) requirements of the automobile exhaust pollutants of the ignition type engine of GB18285, the emission limit value and the measurement method of the exhaust pollutants under the working conditions of high and low idle speeds are regulated to be required for manufacturing qualified factory ignition type engine vehicles, and the high-idle speed of the light automobile is regulated to be 2500 +/-100 r/min in the standard. When carrying out two idle speed exhaust emissions and detecting, the idling of waiting to detect the vehicle is arranged the control of personnel to general in automotive test factory, then tests engine coolant temperature and actual rotational speed value under the different idle operating mode and obtains, but because manual control has control stability poor, shortcoming such as operation fatigue leads to the test to obtain data not accurate enough, and is inefficient moreover.
Disclosure of Invention
In order to solve the technical problem, the invention provides an engine emission detection method and device.
The invention provides an engine detection method, which comprises the following steps:
after receiving a remote detection instruction sent by an external network terminal, the vehicle-mounted intelligent communication terminal judges whether an engine of a vehicle is started or not and whether a transmission is in a neutral position or not, and if so, sends a diagnosis instruction to an engine controller;
After receiving the diagnosis instruction, the engine controller controls the engine to operate in a preset idling state and continuously reads the temperature of the engine coolant and the actual rotating speed value;
after the temperature of the engine coolant reaches a preset temperature threshold value, continuously sending the temperature of the engine coolant and an actual rotating speed value to the vehicle-mounted intelligent communication terminal within a preset first time interval;
when the preset first time interval is finished, the engine controller controls the engine to run in a free idle state, and continuously sends the temperature of the engine coolant and the actual rotating speed value to the vehicle-mounted intelligent communication terminal within a preset second time interval;
and the vehicle-mounted intelligent communication terminal sends the temperature of the engine coolant and the actual rotating speed value to the external network terminal in the first time interval and the second time interval.
Further, the preset idle state engine speed value is higher than the free idle state engine speed value.
Further, the preset first time interval and the preset second time interval are equal.
Further, the preset temperature threshold is 80 ℃.
The invention provides an engine detection system, which comprises:
the vehicle-mounted intelligent communication terminal is used for judging whether an engine of a vehicle is started and a transmission is in a neutral position or not after receiving a remote detection instruction sent by an external network terminal, if so, sending a diagnosis instruction to an engine controller, and is also used for sending the temperature of engine coolant and an actual rotating speed value sent by the engine controller to the external network terminal;
and the engine controller is used for controlling the engine to run in a preset idle state and continuously read the temperature of the engine coolant and the actual rotating speed value after receiving the diagnosis instruction, continuously sending the temperature of the engine coolant and the actual rotating speed value to the vehicle-mounted intelligent communication terminal in a preset first time interval after the temperature of the engine coolant reaches a preset temperature threshold value, and controlling the engine to run in a free idle state and continuously send the temperature of the engine coolant and the actual rotating speed value to the vehicle-mounted intelligent communication terminal in a preset second time interval when the preset first time interval is finished.
The invention provides a vehicle which comprises the engine detection system.
The invention provides an engine detection device, comprising:
a memory, a processor, and an engine detection program stored on and executable on the memory, the engine detection program when executed by the processor implementing the steps of the engine detection method described above.
The invention provides a vehicle which comprises the engine detection device.
The implementation of the invention has the following beneficial effects:
by the method and the device, the vehicle-mounted intelligent communication terminal can be remotely controlled to drive the engine to work, the temperature of the engine coolant and the actual rotating speed value can be obtained, the problem that the temperature and the actual rotating speed value of the engine coolant of the engine are unstable and inaccurate when idling is manually controlled in the prior art is solved, and the problem of low efficiency in manual control is solved.
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 of an engine detection method provided by an embodiment of the invention.
FIG. 2 is a block diagram of an engine detection system provided in an embodiment of the present invention.
Fig. 3 is a structural diagram of an engine detection device according to an embodiment of the present invention.
Detailed Description
The key content of the patent is that the vehicle-mounted T-BOX is remotely activated, the vehicle-mounted T-BOX controls the engine to work at a specified idle speed and obtains the temperature of the engine coolant and the actual rotating speed value, and the specific implementation mode of the method is further explained by combining the attached drawings and the embodiment.
The following describes embodiments of the engine detection method and apparatus provided by the present invention in detail.
As shown in fig. 1, the present invention provides an engine detection method, comprising:
and step S11, after receiving the remote detection instruction sent by the external network terminal, the vehicle-mounted intelligent communication terminal judges whether the engine of the vehicle is started and the transmission is in a neutral position, and if so, the vehicle-mounted intelligent communication terminal sends a diagnosis instruction to the engine controller.
In the vehicle, the neutral position is a P-range or an N-range in an Automatic Transmission (AT), and is a neutral position in a Manual Transmission (MT).
The invention also relates to a method for receiving the remote detection instruction by the vehicle-mounted intelligent communication terminal T-BOX through the network, wherein the method is characterized in that a wireless module is arranged in the vehicle-mounted intelligent communication terminal, and the vehicle-mounted intelligent communication terminal and an external network terminal are connected through a network formed by wireless; of course, a wired network can be used to connect the vehicle-mounted intelligent communication terminal and the external network terminal, but a wireless network is more convenient.
And step S12, after the engine controller receives the diagnosis instruction, controlling the engine to operate in a preset idling state and continuously reading the temperature of the engine coolant and the actual rotating speed value.
It should be noted that, in general, the vehicle-mounted intelligent communication terminal receives a remote monitoring instruction sent by an external network terminal, and then controls the engine to enter a high idle speed for performing a related test; the existing vehicle test is that the idling is controlled by manually stepping on the pedal, and the controlled idling is not stable enough.
It should be noted that the vehicle-mounted intelligent communication terminal transmits the read engine coolant temperature and the actual rotating speed value to a remote display through a network connected with the vehicle-mounted intelligent communication terminal.
And step S13, after the temperature of the engine coolant reaches a preset temperature threshold value, continuously sending the temperature of the engine coolant and the actual rotating speed value to the vehicle-mounted intelligent communication terminal within a preset first time interval.
It should be noted that the preset first temperature is 80 degrees celsius, the engine must work for a period of time after being started to enable the temperature of the engine coolant to reach 80 degrees, and the preset first time interval is 45 seconds, which is a suitable time.
And step S14, when the preset first time interval is over, the engine controller controls the engine to run in a free idle state, and continuously sends the temperature of the engine coolant and the actual rotating speed value to the vehicle-mounted intelligent communication terminal within a preset second time interval.
It should be noted that, the preset first time interval and the preset second time interval are equal, and it is easy to compare the obtained engine coolant temperature and the actual rotation speed value, and both of them are optimal for 45 seconds.
It should be noted that the free idle speed is different from vehicle to vehicle, and is generally 650r/min to 700r/min, and the preset engine speed value in the idle speed state is higher than that in the free idle speed state.
And step S15, the vehicle-mounted intelligent communication terminal sends the temperature of the engine coolant and the actual rotating speed value in the first time interval and the second time interval to the external network terminal.
As shown in FIG. 2, the present invention provides an engine detection system comprising:
The vehicle-mounted intelligent communication terminal 21 is used for judging whether an engine of a vehicle is started and a transmission is in a neutral position or not after receiving a remote detection instruction sent by an external network terminal, if so, sending a diagnosis instruction to an engine controller, and also used for sending the temperature of engine coolant and an actual rotating speed value sent by the engine controller to the external network terminal;
and the engine controller 22 is used for controlling the engine to run in a preset idle state and continuously read the temperature of the engine coolant and the actual rotating speed value after receiving the diagnosis instruction, continuously sending the temperature of the engine coolant and the actual rotating speed value to the vehicle-mounted intelligent communication terminal in a preset first time interval after the temperature of the engine coolant reaches a preset temperature threshold value, and controlling the engine to run in a free idle state and continuously send the temperature of the engine coolant and the actual rotating speed value to the vehicle-mounted intelligent communication terminal in a preset second time interval when the preset first time interval is ended.
As shown in fig. 3, the present invention provides an engine detection device including: a memory 31, a processor 32, and an engine detection program stored on the memory 31 and operable on the memory 31, the engine detection program when executed by the processor 32 implementing the steps of the engine detection method described above.
The vehicle protected by the present invention includes the above-described engine detection system or engine detection device.
The implementation of the invention has the following beneficial effects:
the invention can realize the remote control of the vehicle-mounted intelligent communication terminal to drive the engine to work, and obtain the temperature and the actual rotating speed value of the engine coolant, solves the problems of instability and inaccuracy of the temperature and the actual rotating speed value of the engine coolant tested by manually controlling the idle speed, and also solves the problem of low control efficiency by manual operation, and is simple and convenient by wireless network control.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (8)
1. An engine detection method, comprising:
after receiving a remote detection instruction sent by an external network terminal, the vehicle-mounted intelligent communication terminal judges whether an engine of a vehicle is started or not and whether a transmission is in a neutral position or not, and if so, sends a diagnosis instruction to an engine controller;
After receiving the diagnosis instruction, the engine controller controls the engine to operate in a preset idling state and continuously reads the temperature of the engine coolant and the actual rotating speed value;
after the temperature of the engine coolant reaches a preset temperature threshold value, continuously sending the temperature of the engine coolant and an actual rotating speed value to the vehicle-mounted intelligent communication terminal within a preset first time interval;
when the preset first time interval is finished, the engine controller controls the engine to run in a free idle state, and continuously sends the temperature of the engine coolant and the actual rotating speed value to the vehicle-mounted intelligent communication terminal within a preset second time interval;
and the vehicle-mounted intelligent communication terminal sends the temperature of the engine coolant and the actual rotating speed value to the external network terminal in the first time interval and the second time interval.
2. The method of claim 1, wherein the preset idle state engine speed value is higher than the free idle state engine speed value.
3. The method of claim 1, wherein the preset first time interval and the preset second time interval are equal.
4. The method of claim 1, wherein the preset temperature threshold is 80 degrees celsius.
5. An engine detection system, comprising:
the vehicle-mounted intelligent communication terminal is used for judging whether an engine of a vehicle is started and a transmission is in a neutral position or not after receiving a remote detection instruction sent by an external network terminal, if so, sending a diagnosis instruction to an engine controller, and is also used for sending the temperature of engine coolant and an actual rotating speed value sent by the engine controller to the external network terminal;
and the engine controller is used for controlling the engine to run in a preset idle state and continuously read the temperature of the engine coolant and the actual rotating speed value after receiving the diagnosis instruction, continuously sending the temperature of the engine coolant and the actual rotating speed value to the vehicle-mounted intelligent communication terminal in a preset first time interval after the temperature of the engine coolant reaches a preset temperature threshold value, and controlling the engine to run in a free idle state and continuously send the temperature of the engine coolant and the actual rotating speed value to the vehicle-mounted intelligent communication terminal in a preset second time interval when the preset first time interval is finished.
6. A vehicle comprising the engine detection system of claim 5.
7. An engine detection device comprising: a memory, a processor, and an engine detection program stored on and executable on the memory, the engine detection program when executed by the processor implementing the steps of the engine detection method described above.
8. A vehicle characterized by comprising the engine detection apparatus according to claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910350043.5A CN111855214A (en) | 2019-04-28 | 2019-04-28 | Engine detection method and system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910350043.5A CN111855214A (en) | 2019-04-28 | 2019-04-28 | Engine detection method and system and vehicle |
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| CN111855214A true CN111855214A (en) | 2020-10-30 |
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| CN201910350043.5A Pending CN111855214A (en) | 2019-04-28 | 2019-04-28 | Engine detection method and system and vehicle |
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Citations (8)
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|---|---|---|---|---|
| JPH07257219A (en) * | 1994-02-19 | 1995-10-09 | Robert Bosch Gmbh | Method and device for adjusting rotating speed of driving device of car during idling |
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| CN202300669U (en) * | 2011-10-25 | 2012-07-04 | 宁波远景汽车零部件有限公司 | Engine speed control system for testing automobile exhaust |
| CN103034194A (en) * | 2012-12-03 | 2013-04-10 | 上汽通用五菱汽车股份有限公司 | An automatic control system for vehicle off-line double-idling discharging detection |
| CN104792551A (en) * | 2015-05-11 | 2015-07-22 | 安徽江淮汽车股份有限公司 | Vehicle exhaust gas detection method and vehicle exhaust gas detection system |
| CN204556274U (en) * | 2015-05-11 | 2015-08-12 | 安徽江淮汽车股份有限公司 | A kind of Vehicular exhaust detection system |
| CN204630995U (en) * | 2015-01-29 | 2015-09-09 | 佛山市华贝软件技术有限公司 | Vehicle exhaust double idle detection system |
| CN109540542A (en) * | 2018-11-22 | 2019-03-29 | 侯庆海 | A kind of method for detecting automobile exhaust gas based on bluetooth in conjunction with OBD |
-
2019
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| JPH07257219A (en) * | 1994-02-19 | 1995-10-09 | Robert Bosch Gmbh | Method and device for adjusting rotating speed of driving device of car during idling |
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Non-Patent Citations (1)
| Title |
|---|
| 国家环境保护总局: "《GB18285-2005点燃式发动机汽车排气污染物排放限值及测量方法（双怠速法及简易工况法）》", 1 July 2005 * |
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