CN104047720B - Electric-control motor OBD torque limit system and method thereof - Google Patents
Electric-control motor OBD torque limit system and method thereof Download PDFInfo
- Publication number
- CN104047720B CN104047720B CN201310082197.3A CN201310082197A CN104047720B CN 104047720 B CN104047720 B CN 104047720B CN 201310082197 A CN201310082197 A CN 201310082197A CN 104047720 B CN104047720 B CN 104047720B
- Authority
- CN
- China
- Prior art keywords
- moment
- electric
- control motor
- subtract
- obd
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
The present invention discloses a kind of electric-control motor OBD torque limit system and method thereof. This electric-control motor OBD torque limit system comprises: temperature sensor, subtracts moment of torsion resistance, engine controller and subtracts torque management module, and with subtract torque management module control linkage subtract moment of torsion ohm relay, temperature sensor and engine controller are connected to form electric-control motor thermal protection system; Subtracting moment of torsion resistance by subtracting the series connection of moment of torsion ohm relay or access engine thermal securing system in parallel, the input terminus subtracting torque management module is connected with electric-control motor SCR system and NOx sensor. This electric-control motor OBD torque limit system applied widely, it is possible to be applicable to have on all electric-control motors of heat protection function; Cost advantage is obvious; The electrical control system of state's III engine, can realize OBD torque-limiting function by simply demarcating, reduce state IV, state V engine development cost.
Description
Technical field
The present invention relates to engine art, in particular to a kind of electric-control motor OBD torque limit system and method thereof.
Background technology
OBD is the abbreviation of English On-BoardDiagnostics, and translator of Chinese is " mounted automatic diagnosis system ". By monitoring automobile at any time from the operation conditions of engine, whether tail gas exceeds standard this system, once exceed standard, can send warning at once, and start outside and subtract moment of torsion function.
State IV electric-control motor laws and regulations requirement electric-control motor must have OBD function, and state's interior portion electric-control motor is demarcated by state III by optimizing and increase post-processing module and directly complete. This upgrading electric-control motor torque-limiting function only controls fuel charge by engine controller (EECU) and realizes, and does not have exhausting control function, cannot be undertaken discharging the torque-limiting function exceeded standard by EECU, just cannot meet OBD laws and regulations requirement.
Therefore, existing electric-control motor OBD certification subtracts moment of torsion function can only by upgrading engine controller (EECU), make it have exhausting control function, OBD laws and regulations requirement could be met, but which has following shortcoming: first, domestic enterprise is when state III stage EECU develops owing to technology and cost limit, and all untapped OBD function substantially, certainly will be paid bigger cost in upgrading state IV process and upgrade for EECU; Secondly, the blockade on new techniques of this EECU, the former EECU for state's III engine is not supported OBD function by external enterprise, and upgrading EECU controller price must improve, and the cost improved can be attached on new EECU, engine production enterprise is caused to be undertaken the raising of this cost; Finally, meet OBD authentication requesting realize subtracting moment of torsion function for being reached by upgrading EECU engine production enterprise, improving what more allow it is difficult to accept compared with EECU price is that all engine functions all need again to demarcate, and will greatly be increased by the cost price realizing state IV and above emission request is paid.
Summary of the invention
The present invention is to overcome defect in above-mentioned prior art, it provides a kind of simple and reasonable, realizes the torque limit of engine based on EECU heat protection function, the electric-control motor OBD torque limit system that cost is low and method thereof.
For achieving the above object, according to an aspect of the present invention, provide a kind of electric-control motor OBD torque limit system, comprise: temperature sensor, subtract moment of torsion resistance, engine controller and subtract torque management module, and with subtract torque management module control linkage subtract moment of torsion ohm relay, temperature sensor and engine controller are connected to form electric-control motor thermal protection system; Subtracting moment of torsion resistance by subtracting the series connection of moment of torsion ohm relay or access engine thermal securing system in parallel, the input terminus subtracting torque management module is connected with electric-control motor SCR system and NOx sensor.
In technique scheme, when subtracting moment of torsion resistance series connection access engine thermal securing system, subtract moment of torsion ohm relay and comprise: the first rly. and the 2nd rly.; The input terminus of temperature sensor is connected with the output terminal of engine controller by the first temperature signal input line bundle, and its output terminal, then is connected with the input terminus of engine controller with subtracting after moment of torsion resistance connects by the 2nd temperature output line bundle; The movable contact of the first relay output end and rest contact are connected respectively to the two ends subtracting moment of torsion resistance, the movable contact of the 2nd relay output end and rest contact be connected respectively to temperature sensor input terminus and output terminal.
In technique scheme, when subtracting moment of torsion resistance parallel connection access engine thermal securing system, subtract moment of torsion ohm relay and comprise: the 3rd rly.; The input terminus of temperature sensor is connected with the output terminal of engine controller, and output terminal is connected with the input terminus of engine controller; Subtract after moment of torsion resistance connects with the 3rd rly., more in parallel with temperature sensor.
In technique scheme, also comprise: the spring being arranged on the junction subtracting torque management module and subtracting moment of torsion resistance wire harness returns a device.
In technique scheme, temperature sensor is water temperature sensor, fuel temperature sensor, intake air temperature sensor or oil temperature sensor.
In technique scheme, the resistance subtracting moment of torsion resistance is chosen higher than 50% and lower than resistance corresponding to 60% engine thermal securing system torque limit temperature.
According to another aspect of the present invention, it provides a kind of electric-control motor OBD torque limit method applying above-mentioned electric-control motor OBD torque limit system, comprises the following steps:
Step one: subtract torque management module receive whole car discharge carry out detection signal;
Step 2: subtract torque management module and judge whether the discharge of whole car exceeds standard, and send break-make instruction and subtract whether moment of torsion resistance accesses electric-control motor thermal protection system to subtracting moment of torsion ohm relay to control,
When the discharge of whole car exceeds standard, subtract torque management module control and subtract moment of torsion resistance access electric-control motor thermal protection system, then substitute temperature sensor and transmit Thermal protection initiating signal to engine controller;
Step 3: starting torque limitation function after engine controller reception Thermal protection initiating signal.
Compared with prior art, the present invention has following useful effect: this electric-control motor OBD torque limit system applied widely, it is possible to be applicable to have on all electric-control motors of heat protection function; Cost advantage is obvious; The electrical control system of state's III engine, can realize OBD torque-limiting function by simply demarcating, reduce state IV, state V engine development cost.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the electric-control motor OBD torque limit system embodiment one of the present invention;
Fig. 2 is the schematic diagram of the electric-control motor OBD torque limit system embodiment two of the present invention;
Fig. 3 is the schema of the electric-control motor OBD torque limit method of the present invention.
Embodiment
Below in conjunction with accompanying drawing, a specific embodiment of the present invention is described in detail, it should be understood that protection scope of the present invention is not by the restriction of embodiment. It will be appreciated that, in the following enforcement mode of the present invention mentioned " on ", D score, "left", "right", " front " and " reverse side " all taking the direction shown in each figure as benchmark, these words being used for limiting direction are only used to be convenient to illustrate, do not represent the restriction to the concrete technical scheme of the present invention.
By subtracting, torque management module controls to subtract whether moment of torsion resistance accesses electric-control motor thermal protection system the electric-control motor OBD torque limit system of the present invention according to whole car discharge detected result; thus moment of torsion resistance will be subtracted and replace the former temperature sensor of electric-control motor thermal protection system to transmit Thermal protection initiating signal to engine controller (EECU), to realize OBD torque-limiting function. This electric-control motor OBD torque limit system comprises: subtract the series connection of moment of torsion resistance or access electric-control motor thermal protection system two schemes in parallel.
Embodiment one,
As shown in Figure 1, in series resistance scheme, specifically comprising of this electric-control motor OBD torque limit system: temperature sensor 1, subtract moment of torsion resistance 2, engine controller 3 and subtract torque management module 4, and subtract rly. 5, the rly. 6 of torque management module 4 control linkage with this.
Temperature sensor 1 is water temperature sensor, fuel temperature sensor, intake air temperature sensor or oil temperature sensor, its input terminus is connected with the output terminal of engine controller (EECU) 3 by temperature signal input line bundle 12, output terminal by temperature output line bundle 11 with subtract after moment of torsion resistance 2 is connected in series, then the input terminus with engine controller (EECU) 3 is connected. The movable contact of rly. 5 output terminal and rest contact are connected respectively to the left and right two ends subtracting moment of torsion resistance 2, the movable contact of relay output end 6 and rest contact be connected respectively to temperature sensor 1 input terminus and output terminal.
The input terminus subtracting torque management module 4 is connected with electric-control motor SCR system and NOx sensor, for receiving row's temperature signal, the NOx sensor signal of electric-control motor SCR system, the discharge of whole car is detected; Its output terminal is connected with rly. 5, rly. 6 respectively; subtract whether moment of torsion resistance 2 accesses electric-control motor thermal protection system for being controlled by the opening and closing of relay 5, rly. 6; thus moment of torsion resistance will be subtracted and replace the former temperature sensor of electric-control motor thermal protection system to transmit Thermal protection initiating signal to engine controller (EECU), to realize OBD torque-limiting function.
When subtract torque management module 4 do not receive discharge exceed standard or laws and regulations requirement other activate torque limit device instructions time, namely relay 6 disconnects, rly. 5 is closed (to be subtracted moment of torsion resistance 2 to be shorted, do not access electric-control motor thermal protection system), now, enter temperature value (resistance value of temperature sensor 1) or the true value of temperature sensor 1 of engine controller (EECU) 3, the true value of this temperature sensor 1 does not arrive the set(ting)value of engine controller (EECU) 3 temperature protection, engine normal operation, do not carry out the torque limit that engine emission exceeds standard.
When subtract torque management module 4 receive discharge exceed standard or laws and regulations requirement other activate torque limit device instructions time; namely relay 6 is closed, rly. 5 disconnects (temperature sensor 1 is shorted); now; the temperature value entering engine controller (EECU) 3 is the resistance value (this resistance value is set to engine thermal protection temperature in engine controller (EECU) 3) subtracting moment of torsion resistance 2; namely engine controller (EECU) 3 reinstates thermo-field thoery heat protection function, realizes OBD torque limiting function by heat protection function.
The resistance subtracting moment of torsion resistance 2 wants corresponding Thermal protection curve in binding engine controller (EECU) 3 to choose, it is preferable that higher than 50% and lower than 60% engine thermal securing system torque limit temperature corresponding to resistance.
Embodiment two,
As shown in Figure 2, in shunting resistance scheme, specifically comprising of this electric-control motor OBD torque limit system: temperature sensor 21, subtract moment of torsion resistance 22, engine controller (EECU) 23 and subtract torque management module 24, and subtract the rly. 25 of torque management module 24 control linkage with this. Temperature sensor 21 is water temperature sensor, fuel temperature sensor, intake air temperature sensor or oil temperature sensor, and its input terminus is connected with the output terminal of engine controller (EECU) 23 by temperature signal input line bundle 26; Output terminal is connected with the input terminus of engine controller (EECU) 23 by temperature output line bundle 27.
Subtract after moment of torsion resistance 22 connects with rly. 25, in parallel with temperature sensor 21 again, relay 25 access whether in parallel can subtract moment of torsion resistance 22 by the opening and closing of rly. 25, and its rear total resistance value in parallel is inputted engine controller (EECU) 23 as a certain temperature signal value.
Subtract torque management module 24 respectively with the input terminus control linkage of rly. 25, and by row's temperature signal of electric-control motor SCR system, NOx sensor signal and aftertreatment controller internal calculation program, the discharge of whole car can be detected, then according to the break-make of detected result relay 25.
When subtract torque management module 24 do not receive discharge exceed standard or laws and regulations requirement other activate torque limit device instructions time; namely relay 25 disconnects (subtract moment of torsion resistance 22 and be not incorporated to temperature sensor 21); now; enter temperature value (resistance value of temperature sensor 21) or the true value of temperature sensor 21 of engine controller (EECU) 23; the true value of this temperature sensor 21 does not arrive the set(ting)value of engine controller (EECU) 23 temperature protection; engine normal operation, does not carry out the torque limit that engine emission exceeds standard.
When subtract torque management module 24 receive discharge exceed standard or laws and regulations requirement other activate torque limit device instructions time; i.e. relay 25 closed (subtract moment of torsion resistance 22 and be incorporated to temperature sensor 21); now; the temperature value entering engine controller (EECU) 23 be subtract moment of torsion resistance 22 in parallel with temperature sensor 21 after resistance value (this resistance value is set to engine thermal protection temperature in engine controller (EECU) 23); namely engine controller (EECU) 23 reinstates thermo-field thoery heat protection function, realizes OBD torque limiting function by heat protection function.
The resistance subtracting moment of torsion resistance 22 wants corresponding Thermal protection curve in binding engine controller (EECU) 23 to choose, it is preferable that higher than 50% and lower than 60% torque limit temperature corresponding to resistance.
This electric-control motor OBD torque limit system also comprises: is arranged on the spring subtracting torque management module 24 and the junction subtracting moment of torsion resistance 22 wire harness in parallel and returns a device, it is make parallel connection subtract two terminal shortcircuits of moment of torsion resistance 22 wire harness after subtracting torque management module 24 dismounting that this spring returns an apparatus function, owing to can be disconnected at the two ends of shunting resistance wire harness for Hard link after installation torque limit module, prevent the torque management module 24 that subtracts of this electric-control motor OBD torque limit system from arbitrarily being removed.
By subtracting, torque management module controls to subtract whether moment of torsion resistance accesses electric-control motor thermal protection system this electric-control motor OBD torque limit method according to whole car discharge detected result; thus moment of torsion resistance will be subtracted and replace the former temperature sensor of electric-control motor thermal protection system to transmit Thermal protection initiating signal to engine controller (EECU), to realize OBD torque-limiting function. This electric-control motor OBD torque limit system applied widely, it is possible to be applicable to have on all electric-control motors of heat protection function; Cost advantage is obvious; The electrical control system of state's III engine, can realize OBD torque-limiting function by simply demarcating, reduce state IV, state V engine development cost.
Several specific embodiments being only the present invention disclosed in above, but, the present invention is not limited thereto, and the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (7)
1. an electric-control motor OBD torque limit system, it is characterized in that, comprise: temperature sensor, subtract moment of torsion resistance, engine controller and subtract torque management module, and with described subtract torque management module control linkage subtract moment of torsion ohm relay, described temperature sensor and engine controller are connected to form electric-control motor thermal protection system; The described moment of torsion resistance that subtracts subtracts the series connection of moment of torsion ohm relay or the described engine thermal securing system of access in parallel by described, described in subtract torque management module input terminus be connected with electric-control motor SCR system and NOx sensor.
2. electric-control motor OBD torque limit system according to claim 1, it is characterised in that: described in when subtracting the moment of torsion resistance series connection described engine thermal securing system of access, described in subtract moment of torsion ohm relay and comprise: the first rly. and the 2nd rly.; The input terminus of described temperature sensor is connected with the output terminal of described engine controller by the first temperature signal input line bundle, its output terminal subtracts after moment of torsion resistance connects by the 2nd temperature output line bundle with described, then is connected with the input terminus of engine controller; The movable contact of described first relay output end and rest contact subtract the two ends of moment of torsion resistance described in being connected respectively to, the movable contact of described 2nd relay output end and rest contact be connected respectively to described temperature sensor input terminus and output terminal.
3. electric-control motor OBD torque limit system according to claim 1, it is characterised in that: described in when subtracting the moment of torsion resistance parallel connection described engine thermal securing system of access, described in subtract moment of torsion ohm relay and comprise: the 3rd rly.; The input terminus of described temperature sensor is connected with the output terminal of engine controller, and output terminal is connected with the input terminus of engine controller; Described subtract after moment of torsion resistance connects with the 3rd rly., more in parallel with described temperature sensor.
4. electric-control motor OBD torque limit system according to claim 3, it is characterised in that: also comprise: the spring subtracting torque management module and the junction that subtracts moment of torsion resistance wire harness described in being arranged on returns a device.
5. electric-control motor OBD torque limit system according to claim 1, it is characterised in that: described temperature sensor is water temperature sensor, fuel temperature sensor, intake air temperature sensor or oil temperature sensor.
6. electric-control motor OBD torque limit system according to any one of claim 1 to 5, it is characterised in that: described in subtract moment of torsion resistance resistance choose higher than 50% and lower than resistance corresponding to engine thermal securing system torque limit temperature described in 60%.
7. the electric-control motor OBD torque limit method of the above-mentioned electric-control motor OBD torque limit system of application, it is characterised in that, comprise the following steps:
Step one: subtract torque management module receive whole car discharge carry out detection signal;
Step 2: subtract torque management module and judge whether the discharge of whole car exceeds standard, and send break-make instruction and subtract whether moment of torsion resistance accesses electric-control motor thermal protection system to subtracting moment of torsion ohm relay to control,
When the discharge of whole car exceeds standard, subtract torque management module control and subtract moment of torsion resistance access electric-control motor thermal protection system, then substitute temperature sensor and transmit Thermal protection initiating signal to engine controller;
Step 3: starting torque limitation function after engine controller reception Thermal protection initiating signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310082197.3A CN104047720B (en) | 2013-03-15 | 2013-03-15 | Electric-control motor OBD torque limit system and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310082197.3A CN104047720B (en) | 2013-03-15 | 2013-03-15 | Electric-control motor OBD torque limit system and method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104047720A CN104047720A (en) | 2014-09-17 |
| CN104047720B true CN104047720B (en) | 2016-06-08 |
Family
ID=51501043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310082197.3A Active CN104047720B (en) | 2013-03-15 | 2013-03-15 | Electric-control motor OBD torque limit system and method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104047720B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106567766A (en) * | 2016-08-31 | 2017-04-19 | 潍柴动力股份有限公司 | Method and device for detecting in-use conformity |
| CN112172815B (en) * | 2019-07-02 | 2021-12-21 | 郑州宇通客车股份有限公司 | Vehicle and driving performance limiting control method for emission fault of vehicle |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2254603Y (en) * | 1995-08-02 | 1997-05-21 | 王红波 | Universal light forward-backward coverting controlling box |
| CN102720595A (en) * | 2012-07-04 | 2012-10-10 | 河北华北柴油机有限责任公司 | Engine overspeed protection and control method |
| CN203146112U (en) * | 2013-03-15 | 2013-08-21 | 广西玉柴机器股份有限公司 | OBD torque limit system of electronic-controlled engine |
-
2013
- 2013-03-15 CN CN201310082197.3A patent/CN104047720B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2254603Y (en) * | 1995-08-02 | 1997-05-21 | 王红波 | Universal light forward-backward coverting controlling box |
| CN102720595A (en) * | 2012-07-04 | 2012-10-10 | 河北华北柴油机有限责任公司 | Engine overspeed protection and control method |
| CN203146112U (en) * | 2013-03-15 | 2013-08-21 | 广西玉柴机器股份有限公司 | OBD torque limit system of electronic-controlled engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104047720A (en) | 2014-09-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10551441B2 (en) | Method and system for relay diagnosis | |
| CN104600787B (en) | Intelligent charging system | |
| US9208624B2 (en) | Time window authentication for vehicle telematics device | |
| CN106379188A (en) | Energy management system for power battery of electric automobile and safety protection method | |
| CN108839568A (en) | Electric vehicle pre-charging control method and device | |
| CN103967679B (en) | Starter control system controls method and the starter control system thereof of starter motor | |
| CN105517827A (en) | A control system for an automotive engine and a method of controlling an automotive engine | |
| CN203146112U (en) | OBD torque limit system of electronic-controlled engine | |
| CN105730258B (en) | The Iganition control system and automobile of automobile | |
| CN103963009B (en) | A kind of specific purpose tool of disassembling sensor | |
| CN104079650B (en) | A kind of car networking information service system and method based on vehicle intelligent gateway device | |
| CN104047720B (en) | Electric-control motor OBD torque limit system and method thereof | |
| CN107719159A (en) | Circuit and control method under a kind of electric automobile low-power consumption time delay | |
| CN102635450B (en) | Automobile dual-fuel switch control method and device | |
| CN107850032A (en) | Integrated starter current control device and onboard power system disconnect switch | |
| CN104052133B (en) | Electric automobile battery charger output protection circuit | |
| JP6073834B2 (en) | Stabilization of vehicle electrical distribution system | |
| CN103407375B (en) | Motoring condition observation circuit and monitoring method thereof | |
| CN209441214U (en) | Quick charge and vehicle-mounted charge execute tolerant system | |
| CN105756390B (en) | A kind of solar electrically propelled vehicle underground parking system | |
| CN110194112A (en) | The control method and device of electric vehicle, storage medium, electronic equipment | |
| CN203496692U (en) | Vehicle operating state monitoring circuit | |
| CN105649842B (en) | Heater control apparatus and its driving method for filter for diesel fuel | |
| CN104908682B (en) | Terminal system of intelligent electrical apparatus | |
| CN104670039A (en) | Electric vehicle emergency starting method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |