CN202011368U - Automatic state identification system for air conditioning system of vehicle - Google Patents
Automatic state identification system for air conditioning system of vehicle Download PDFInfo
- Publication number
- CN202011368U CN202011368U CN2011200852677U CN201120085267U CN202011368U CN 202011368 U CN202011368 U CN 202011368U CN 2011200852677 U CN2011200852677 U CN 2011200852677U CN 201120085267 U CN201120085267 U CN 201120085267U CN 202011368 U CN202011368 U CN 202011368U
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Abstract
An automatic state identification system for an air conditioning system of a vehicle comprises an engine controller and is characterized in that an air conditioning switch state judgment module is arranged in the engine controller; the input end of the air conditioning switch state judgment module is connected with an air conditioning switch; the output end of the air conditioning switch state judgment module is connected with the input end of an air conditioning state storage unit; the output end of the air conditioning state storage unit is connected with the input end of an online real-time diagnosis module of the air conditioning system; and the output end of the online real-time diagnosis module of the air conditioning system is connected with a trouble light. The automatic state identification system can automatically identify whether the vehicle is in the air conditioning installation state, so as to automatically stop or start the air conditioning diagnosis functions and realize the use of the same engine controller on the vehicle with or without the air conditioner. Therefore, the problems of misdiagnosis or no diagnosis of the air conditioning system caused by installation of the wrong engine controller are fundamentally eliminated, and the engine controller does not need to be replaced when the air conditioner is assembled or disassembled.
Description
Technical field
The utility model relates to the vehicle-mounted fault diagnosis field, discerns the vehicle air conditioner state automatic recognition system whether vehicle has installed a/c system especially automatically.
Background technology
At present economy car or mid-get car, in order to satisfy the demand of client's different levels, vehicle when dispatching from the factory, some system that can install an air-conditioner, some then can not.For the air-conditioning that is installed on the automobile, the RM of the state that it is traditional is: a/c system connects a kind of engine controller of version, and this automobile controller is used to open the air-conditioning diagnosis function.The vehicle that a/c system is not installed uses the engine controller of another kind of version, and this automobile controller is used to close the air-conditioning diagnosis function, if do not close this diagnosis function, engine controller will trigger lights not under command light.
This shows, the engine controller that when automobile assembly line is installed air conditioning for automobiles, needs two different editions, in the production process of reality, obscure easily during installation and make mistakes, on the other hand, some vehicles system that when dispatching from the factory, do not install an air-conditioner, therefore the engine controller of vehicle has been closed the air-conditioning diagnosis function, but in the vehicle past-sale service in later stage, some vehicle can install a/c system additional, because engine controller closed the air-conditioning diagnosis function, so these vehicles will not possess the air-conditioning diagnosis function, and this can influence the maintenance of vehicle.If the car owner also changes the engine controller of opening the air-conditioning diagnosis function when installing a/c system additional, this will increase recondition expense greatly, greatly increases car owner's burden.
The utility model content
Technical problem to be solved in the utility model is, do not have the air-conditioning of unlatching diagnosis function simultaneously and close the air-conditioning diagnosis function at the available engine controller, the engine controller that needs two kinds of versions, obscure easily when causing assembling and make mistakes, and closed the bigger problem of automobile repacking expense of air-conditioning diagnosis function, provide a kind of can being installed in air-conditioning is installed or does not install on the air-conditioned vehicle, can SELF CL or the vehicle air conditioner state automatic recognition system of opening the air-conditioning diagnosis function.
In order to solve the problems of the technologies described above, the utility model provides a kind of vehicle air conditioner state automatic recognition system, comprise engine controller, it is characterized in that, be provided with the air conditioning switch condition judgment module in the described engine controller, this air conditioning switch condition judgment module input termination air conditioning switch, the mouth of air conditioning switch condition judgment module connects the input end of air-conditioning state storage unit, the mouth of this air-conditioning state storage unit connects the input end of a/c system line real time diagnosis module, and the mouth of this a/c system line real time diagnosis module is connected with not under command light.
Further, described air-conditioning state storage unit also is provided with car fault diagnosis instrument bonded assembly and forces the zero clearing port, realizes the air-conditioning state storage unit is forced zero clearing.
Good effect of the present utility model is: this vehicle air conditioner state automatic recognition system is used and has been assemblied on air-conditioning or the non-air-conditioning state vehicle with a kind of engine controller, can discern vehicle automatically and whether be in the state that installs an air-conditioner, realize SELF CL or open the air-conditioning diagnosis function.Just can be equipped with air-conditioning with traditional two different engine controllers of needs or non-air-conditioning state vehicle is compared, can fundamentally eliminate because the a/c system wrong diagnosis that causes of misloading engine controller or diagnosis problem not, and unloading or do not need the re-engining controller when installing air-conditioning additional, the repacking cost is low.
Description of drawings
Fig. 1 is a circuit block diagram of the present utility model.
The specific embodiment
Below in conjunction with specific embodiment the utility model is described in further detail.
As shown in Figure 1, vehicle air conditioner state automatic recognition system of the present utility model, the input end of air conditioning switch links to each other with ground, mouth sending and receiving motivation controller, be provided with the air conditioning switch condition judgment module in the engine controller, this air conditioning switch condition judgment module input termination air conditioning switch, the mouth of air conditioning switch condition judgment module is connected with the input end of air-conditioning state storage unit, the mouth of this air-conditioning state storage unit connects the input end of a/c system line real time diagnosis module, and the mouth of this a/c system line real time diagnosis module is connected with not under command light.
When air conditioning switch was closed, earth signal (low level signal just) exported engine controller to; When air conditioning switch disconnected, the signal that air conditioning switch exports engine controller to was a high level signal.Its concrete principle of work is: after vehicle powered on, the air conditioning switch condition judgment module began to accept the input of air conditioning switch signal, and frequency is the input of reading an air conditioning switch signal each second.
When vehicle does not install an air-conditioner system, air conditioning switch disconnects, the input of air conditioning switch condition judgment module is always high level signal, air conditioning switch condition judgment module output digital signal " 0 " is to the air-conditioning state storage unit, this air-conditioning state storage unit puts 0, keeps closing a/c system line real time diagnosis module.The short of system that installs an air-conditioner, the air conditioning switch condition judgment module receives high level signal, and the air-conditioning state storage unit puts 0 all the time, closes the air-conditioning diagnosis function, prevents the a/c system wrong diagnosis.
When vehicle has been installed a/c system, closed air conditioning switch, the air conditioning switch condition judgment module receives low level signal, output digital signal " 1 " is to the air-conditioning state storage unit, the air-conditioning state storage unit puts 1, exports high level to a/c system line real time diagnosis module, a/c system line real time diagnosis module operation detection air-conditioning fault, when a/c system broke down, a/c system line real time diagnosis module controls air-conditioning not under command light was lighted.The air conditioning switch condition judgment module no longer receives the air conditioning switch signal in the case, and the air-conditioning state storage unit keeps putting 1 state, and the work of control a/c system line real time diagnosis module realizes real-time diagnosis function to a/c system.
For original a/c system of having installed, but removed the vehicle of a/c system in the later stage, because the air-conditioning state storage unit keeps putting 1 state under internal processes control, a/c system real-time online diagnostic module is in state of activation always, therefore after a/c system is removed, a/c system real-time online diagnostic module can be looked a/c system and have fault, and not under command light is lighted in control.Take place for fear of such situation, can use the car fault diagnosis instrument to be connected with the pressure zero clearing port that the air-conditioning state storage unit is provided with, the air-conditioning state storage unit is forced zero clearing, air conditioning switch signal output to the signal of air conditioning switch condition judgment module is always high level signal afterwards, the air conditioning switch condition judgment module is exported digital signal " 0 " all the time to the air-conditioning state storage unit, the air-conditioning state storage unit is understood a disposed upright 0 like this, close the air-conditioning diagnosis function, prevent the a/c system wrong diagnosis.
By this vehicle air conditioner state automatic recognition system, can discern vehicle automatically and whether be in the state that installs an air-conditioner, SELF CL or unlatching air-conditioning diagnosis function, be implemented in air-conditioning is installed or the vehicle that do not install an air-conditioner on, can both use engine controller of the present utility model, from eliminating the a/c system wrong diagnosis that causes because of the misloading engine controller or diagnosis problem not with this, and saved assembly cost greatly.
The foregoing description of the present utility model only is to be explanation the utility model example, and is not to be qualification to embodiment of the present utility model.For those of ordinary skill in the field, can also make other multi-form variation and changes on the basis of the above description.Here can't give exhaustive to all embodiments.Everyly belong to the row that conspicuous variation that the technical solution of the utility model amplifies out or change still are in protection domain of the present utility model.
Claims (2)
1. vehicle air conditioner state automatic recognition system, comprise engine controller, it is characterized in that, be provided with the air conditioning switch condition judgment module in the described engine controller, this air conditioning switch condition judgment module input termination air conditioning switch, the mouth of air conditioning switch condition judgment module connects the input end of air-conditioning state storage unit, the mouth of this air-conditioning state storage unit connects the input end of a/c system line real time diagnosis module, and the mouth of this a/c system line real time diagnosis module is connected with not under command light.
2. vehicle air conditioner state automatic recognition system according to claim 1 is characterized in that, described air-conditioning state storage unit also is provided with car fault diagnosis instrument bonded assembly and forces the zero clearing port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200852677U CN202011368U (en) | 2011-03-28 | 2011-03-28 | Automatic state identification system for air conditioning system of vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200852677U CN202011368U (en) | 2011-03-28 | 2011-03-28 | Automatic state identification system for air conditioning system of vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202011368U true CN202011368U (en) | 2011-10-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200852677U Expired - Lifetime CN202011368U (en) | 2011-03-28 | 2011-03-28 | Automatic state identification system for air conditioning system of vehicle |
Country Status (1)
| Country | Link |
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| CN (1) | CN202011368U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104070961A (en) * | 2014-07-04 | 2014-10-01 | 上汽通用五菱汽车股份有限公司 | Method for automatically identifying automobile air conditioner configuration |
| CN105522886A (en) * | 2014-10-24 | 2016-04-27 | 联创汽车电子有限公司 | Self-recognition method for configuration of vehicle air conditioner |
-
2011
- 2011-03-28 CN CN2011200852677U patent/CN202011368U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104070961A (en) * | 2014-07-04 | 2014-10-01 | 上汽通用五菱汽车股份有限公司 | Method for automatically identifying automobile air conditioner configuration |
| CN105522886A (en) * | 2014-10-24 | 2016-04-27 | 联创汽车电子有限公司 | Self-recognition method for configuration of vehicle air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Northern New Chongqing 401122 ring Yunzao Road No. 3 Patentee after: United Automotive Electronics (Chongqing) Co., Ltd. Address before: 401122 Chongqing City, Yubei District economic development zone was opened Yunzao Road No. 3 Patentee before: CHONGQING CHANGAN VISTEON ENGINE CONTROL SYSTEMS CO., LTD. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20111019 |
|
| CX01 | Expiry of patent term |