CN102418584A - Heat management control device and control method for power assembly of vehicle - Google Patents
Heat management control device and control method for power assembly of vehicle Download PDFInfo
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- CN102418584A CN102418584A CN2011103315584A CN201110331558A CN102418584A CN 102418584 A CN102418584 A CN 102418584A CN 2011103315584 A CN2011103315584 A CN 2011103315584A CN 201110331558 A CN201110331558 A CN 201110331558A CN 102418584 A CN102418584 A CN 102418584A
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Abstract
The invention discloses a heat management control device and a heat management control method for a power assembly of a vehicle, and belongs to the technical field of automobile manufacturing. The device comprises an electronic control unit (ECU), wherein the ECU is connected with electronic fans through relays, and is also connected with a temperature measuring system. The device is also provided with six bolts and is suitable for a direct-current (DC) 12V-42V vehicle. The temperature of cooling liquid of the power assembly is kept at the temperature of between 85 and 90 DEG C, a heat management control function of the power assembly of the vehicle is realized, and the aim of constant system temperature is fulfilled; fuel oil can be saved, emission is reduced, power output and the bearing capacity of the vehicle are increased, the maintenance cost of the vehicle is reduced, and reliability and the environmental adaptability of the vehicle are improved; and the device and the method are suitable for the radiating control system management of the power assemblies of the common vehicle and an electric vehicle.
Description
Technical field
The present invention relates to a kind of vehicle engine assembly heat management control gear and controlling method, the temperature controlling device and the controlling method of regulating vehicle engine assembly with controller control electronic fan specifically belong to field of automobile.
Background technique
Vehicle motor is in when work, and a large amount of heat energy is emitted in the fuel combustion meeting, and to 2000 ℃, and the heat energy of burning has only 30% to 40% to transfer mechanical energy to gas temperature, has about 20% systems of being cooled to take away approximately up to 1800 ℃ in the cylinder.With the conventional engines power assembly is example, and the normal water temperature of cooling water during motor machine proper functioning should remain between 85 ℃ to 90 ℃, and this moment, motor can send maximum power, and fuel consume is most economical, and component wear also is minimum.If coolant water temperature is too high or too low, the function of cooling system is reduced or forfeiture; When coolant water temperature surpasses 95 ℃, lubricating oil temperature is raise and rare, the engine oil pressure step-down of becoming, consumption of lubricating oil quickening, power character, Economy are all sharply descended; Lubricated each parts oil film is prone to be destroyed, and lubricant oil burns easily, carbon deposit, impels parts depreciation to quicken.The part matching gap is destroyed, and intensity reduces, and the metal parts of diesel engine is under long-time high temperature action, and intensity, elasticity, wear resistance descend.Aeration quantity reduces, and power reduces, and cylinder temperature is too high to reduce the fresh air that the gets into cylinder charging efficiency that expands very soon.
The Traditional engine power assembly that adopts at present, its rated speed is generally about 2000rpm, drives the radiation fan running through belt or the mechanically operated mode of transmission shaft; Therefore velocity ratio between fan and the motor is about between the 1.2-1.5, according to different automobile types; Vehicle is in the process of running at high speed, and the rotating speed of fan will be at 2600-3000rpm, when engine water temperature is low; Fan is all the time in consumption of power; The fan consumed power accounts for motor and on average uses about 10% of total output more than 10kW at this moment, causes the increase of vehicle fuel consumption.
Summary of the invention
To above-mentioned deficiency, the invention provides a kind of vehicle engine assembly heat management control gear and controlling method, solved and make engine temperature constant, reduce the problem of oil consumption, improved the application efficiency of motor.
The present invention realizes through following technological scheme:
A kind of vehicle engine assembly heat management control gear comprises ECU, and described ECU is connected with electronic fan through relay, and ECU is connected with temp measuring system through the CAN bus, and described electronic fan is located near the power assembly radiator.
Described relay is eight, and electronic fan is four, and vehicle engine assembly heat management control gear also is provided with 6 insurances, and this control gear is applicable to the DC12V---DC42V vehicle.
The present invention also provides a kind of vehicle engine assembly heat management controlling method, and this method comprises:
Temp measuring system records the ECT signal;
ECU gathers the ECT signal through the CAN bus then;
ECU just changes control relay according to the coolant temperature signal, is controlled the high low-speed running of electronic fan or is stopped by relay.
Working principle: research shows that the coolant temperature of vehicle motor performance optimum efficiency is 85 ℃-90 ℃, only could save fuel oil most at the optimum temperature running engine.Power assembly heat management control gear comprises ECU and electronic fan two big constituent elements; Near the power assembly radiator, evenly arrange four electronic fans; Replace traditional mechanical transmission fan, ECU gathers the ECT signal through the CAN bus, just changes control relay according to the coolant temperature signal; Control the high low-speed running of electronic fan by relay; Its characteristics are to adopt ECU control rotation speed of the fan, thereby make motor constant about 85 ℃-90 ℃ (temperature can be set as required), and the intake temperature weighing apparatus fixes on about 40 degree; Guarantee that engine behavior reaches the optimal efficacy ratio, adopts electronic fan to save mechanical driving part simultaneously.
Beneficial effect of the present invention: 1, have simple in structure, characteristics such as cost is low, convenient inspection; The engine thermal management system can arrive the operating temperature of motor fast; Make the motor can be not cold excessively, reduce the wearing and tearing of motor, reduce upkeep cost and also improve engine life.2, have higher cooling effectiveness than conventional fan, reduced the fuel oil that cooling system consumes, obtain best efficient through accurate fan control, the static rotating speed of fan is zero, and the maximum speed during work brings high efficiency, reduces power assembly waste gas and discharges.This engine thermal management system can save fuel oil, reduce discharging, increases power output and vehicle bearing capacity, reduces the vehicle maintenance expense, improves reliability and the vehicle adaptive capacity to environment.3, the present invention is not only applicable to the cooling control system management of common vehicle power assembly, equally is applicable to the cooling control system management of motorized vehicle engine assembly yet.
Description of drawings
Fig. 1 is an electric diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
A kind of vehicle engine assembly heat management control gear that is used for; Form by two parts; One district is the relay group; Comprise 8 relays, 6 insurances and 4 electronic fans, be followed successively by: R1 relay, R2 relay, R3 relay, R4 relay, R5 relay, R6 relay, R7 relay, R8 relay; Z1, Z2, Z3, Z4, Z5, Z6 insurance; Wherein electronic fan M1 and M2 are controlled in R1, R2, the output of R3 relay; R4, R5, R6 relay output control electronic fan M3 and M4; R7 relay output control M1, M2, M3, M4 electronic fan run up the low-speed running of R8 relay output control M1, M2, M3, M4 electronic fan; Z1 is the power safety of electronic fan M1, and Z2 is the power safety of electronic fan M2, and Z3 is the power safety of electronic fan M3, and Z4 is the power safety of electronic fan M4, and Z5 is the power safety of R7 relay, and Z6 is the power safety of R8 relay; M1, M2, M3, M4 electronic fan are arranged near the vehicle radiator; Two district ECU are the electronic fan intelligent control box, realize the acceptance of CAN bus data, control the adhesive and the disconnection of R7, R8 relay after the calculation process, realize the control of vehicle engine assembly heat management;
Concrete Placement:
Insurance: Z1 one end connects power supply EC+, and the other end connects electronic fan M1+; Z2 one end connects power supply EC+, and the other end connects R3 relay 30 pin; Z3 one end connects power supply EC+, and the other end connects electronic fan M3+; Z4 one end connects power supply EC+, and the other end connects R6 relay 30 pin; Z5 one end connects power supply EC+, and the other end connects R7 relay 30 pin; Z6 one end connects power supply EC+, and the other end connects R8 relay 30 pin;
Relay: R1 relay 85 ends connect 87 ends that R4 relay 85 ends connect the R8 relay simultaneously; R1 relay 86 ends connect the 87a end of R2 relay; R1 relay 30 ends connect M1 ﹣, and R1 relay 87 ends connect R3 relay 87 ends and M2+, and R1 relay 87a end connects R2 relay 87 ends; R2 relay 85 ends connect R3 relay 85 ends and connect 85 ends of R5, R6 relay and 87 ends of R7 relay simultaneously; R2 relay 86 ends connect power supply EC ﹣; R2 relay 30 ends connect power supply EC ﹣; R2 relay 87 ends connect R1 relay 87a end, and R2 relay 87a end connects R1 relay 86 ends; R3 relay 85 ends are connected with R2 relay 85 ends; Simultaneously with the R5 relay 85,85 the linking to each other of R6 relay with 87 ends of R7 relay; R3 relay 86 ends connect power supply EC ﹣, and R3 relay 30 ends connect power safety Z2, and 87 ends of R3 relay are connected with 87 ends of R1 relay; Connect electronic fan M2+ simultaneously, the 87a end of R3 relay is empty pin; R4 relay 85 ends connect 87 ends that R1 relay 85 ends connect the R8 relay simultaneously; R4 relay 86 ends connect the 87a end of R5 relay; R4 relay 30 ends connect M3 ﹣, and R4 relay 87 ends connect R6 relay 87 ends and M4+, and R4 relay 87a end connects R5 relay 87 ends; R5 relay 85 ends connect R6 relay 85 ends and connect 85 ends of R2, R3 relay and 87 ends of R7 relay simultaneously; R5 relay 86 ends connect power supply EC ﹣; R5 relay 30 ends connect power supply EC ﹣; R5 relay 87 ends connect R4 relay 87a end, and R5 relay 87a end connects R4 relay 86 ends; R6 relay 85 ends are connected with R5 relay 85 ends; Simultaneously with the R2 relay 85,85 the linking to each other of R3 relay with 87 ends of R7 relay; R6 relay 86 ends connect power supply EC ﹣, and R6 relay 30 ends connect power safety Z4, and 87 ends of R6 relay are connected with 87 ends of R4 relay; Connect electronic fan M4+ simultaneously, the 87a end of R6 relay is empty pin; R7 relay 85 ends connect the MH end of ECU; R7 relay 86 is connected with 86 of R8 relay, connects power supply EC ﹣ simultaneously, and R7 relay 30 ends connect power safety Z5; R7 relay 87 ends link to each other with 85 ends of relay R 2, R3, R5, R6, and R7 relay 87a end is empty pin; R8 relay 85 ends connect the ML end of ECU; R8 relay 86 is connected with 86 of R7 relay, connects power supply EC ﹣ simultaneously, and R8 relay 30 ends connect power safety Z6; R8 relay 87 ends link to each other with 85 ends of R1 relay and 85 ends of R4 relay, and R8 relay 87a end is empty pin; The ML end of electronic fan controller ECU connects 85 ends of R8 relay, and the MH end of electronic fan controller ECU connects 85 ends of R7 relay, and CANL, CANH link to each other with CANL, the CANH of vehicular propulsion respectively.
Working procedure
1, Opportunity awaiting control for linear: electronic fan controller ECU reads vehicle engine assembly coolant temperature signal through the CAN bus data; When coolant temperature is lower than 85 ℃; The ML of electronic fan controller ECU and MH non-output signal; R1-R8 relay remains static, and electronic fan M1, M2, M3, M4 outage are not worked, and system is in holding state;
2, low speed control: when the vehicle engine assembly coolant temperature is higher than 85 ℃; The ML end of electronic fan controller ECU outputs signal to the R8 relay, the work of R8 relay power, and the R8 relay is that R1, R4 relay provide coil power; R1 and the work of R2 relay power; Because the adhesive of R1 relay, power supply EC+ forms the loop through normally opened contact, M2 and the EC ﹣ power supply of Z1 insurance, M1, R1 relay, and M1, M2 are connected between EC+ and the EC ﹣; M1, M2 get 1/2 of EC supply voltage separately, electronic fan M1, the M2 tick-over of connecting; Because R4 relay adhesive simultaneously; Power supply EC+ forms the loop through normally opened contact, M4 and the EC ﹣ power supply of Z3 insurance, M3,1 relay; M3, M4 are connected between EC+ and the EC ﹣, and M3, M4 get 1/2 of EC supply voltage separately, electronic fan M3, the M4 tick-over of connecting; Through R8 work earlier, control R1, R4 relay are worked simultaneously, realize the low-speed running of M1, M2, M3, M4 electronic fan, and the power assembly coolant temperature is reduced to below 85 ℃ gradually;
3, high speed control: when the vehicle engine assembly coolant temperature continues to be higher than 90 ℃; The MH end of electronic fan controller ECU outputs signal to the R7 relay; R7 relay power work, R7 relay are that R2, R3, R5, R6 relay provide coil power, because the adhesive of R2 relay; Power supply EC+ gets back to power supply EC ﹣ through Z1 insurance, R1 relay normally-closed contact, R2 relay normally open contact, electronic fan M1, the electronic fan M1 full speed operation of switching on; R3 relay adhesive simultaneously, power supply EC+ gets back to power supply EC ﹣ through Z2 insurance, R3 relay normally open contact, electronic fan M2, the electronic fan M2 full speed operation of switching on; R5 relay adhesive simultaneously, power supply EC+ gets back to power supply EC ﹣ through Z3 insurance, R4 relay normally-closed contact, R5 relay normally open contact, electronic fan M3, the electronic fan M3 full speed operation of switching on; R6 relay adhesive simultaneously, power supply EC+ gets back to power supply EC ﹣ through Z4 insurance, R6 relay normally open contact, electronic fan M4, the electronic fan M4 full speed operation of switching on; Through R7 work earlier, control R2, R3, R5, R6 relay are worked simultaneously, realize the full-speed operation of M1, M2, M3, M4 electronic fan, and the power assembly coolant temperature is reduced to below 90 ℃ fast;
This device remains on about 85 ℃-90 ℃ the power assembly coolant temperature through above-mentioned three control procedures, realizes vehicle engine assembly heat management control function, reaches the constant purpose of system temperature.
Though the above-mentioned accompanying drawing specific embodiments of the invention that combines is described; But be not restriction to protection domain of the present invention; On the basis of technological scheme of the present invention, those skilled in the art need not pay various modifications that creative work can make or distortion still in protection scope of the present invention.
Claims (6)
1. a vehicle engine assembly heat management control gear comprises ECU, it is characterized in that: described ECU is connected with electronic fan through relay, and ECU is connected with temp measuring system; ECU just changes control relay through the coolant temperature signal, realizes the high low-speed running of electronic fan; When described electronic fan hangs down in coolant temperature, the series connection tick-over; When coolant temperature is high, the work of electronic fan parallel high-speed.
2. vehicle engine assembly heat management control gear as claimed in claim 1 is characterized in that: described vehicle engine assembly heat management control gear also is provided with 6 insurances.
3. vehicle engine assembly heat management control gear as claimed in claim 1 is characterized in that: described ECU is connected through the CAN bus with temp measuring system.
4. vehicle engine assembly heat management control gear as claimed in claim 1 is characterized in that: described relay is 8, and electronic fan is 4.
5. vehicle engine assembly heat management controlling method, this method comprises:
Temp measuring system records the ECT signal;
ECU gathers the ECT signal through the CAN bus, just changes control relay according to the coolant temperature signal, is controlled the high low-speed running of electronic fan by relay.
6. controlling method as claimed in claim 5 is characterized in that:
When ECT is lower than 85 ℃, the ML of electronic fan controller ECU and MH non-output signal, relay remains static, and the electronic fan outage is not worked, and system is in holding state;
When ECT is higher than 85 ℃, when being lower than 90 ℃, the ML of electronic fan controller ECU end outputs signal to relay, makes the electronic fan series connection obtain 1/2 of EC supply voltage, realizes the low-speed running of electronic fan;
When the vehicle engine assembly coolant temperature was higher than 90 ℃, the MH of electronic fan controller ECU end outputed signal to relay, made the electronic fan parallel connection obtain EC supply voltage, electronic fan full-speed operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103315584A CN102418584A (en) | 2011-10-27 | 2011-10-27 | Heat management control device and control method for power assembly of vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103315584A CN102418584A (en) | 2011-10-27 | 2011-10-27 | Heat management control device and control method for power assembly of vehicle |
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| Publication Number | Publication Date |
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| CN102418584A true CN102418584A (en) | 2012-04-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011103315584A Pending CN102418584A (en) | 2011-10-27 | 2011-10-27 | Heat management control device and control method for power assembly of vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104149719A (en) * | 2014-08-27 | 2014-11-19 | 苏州工业园区驿力机车科技有限公司 | Automobile heat radiation local area network |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001349217A (en) * | 2000-06-08 | 2001-12-21 | Fuji Heavy Ind Ltd | Vehicular radiator cooling fan control device |
| JP2003013735A (en) * | 2001-06-28 | 2003-01-15 | Kawasaki Heavy Ind Ltd | Fan controller for radiator |
| CN201220592Y (en) * | 2007-11-23 | 2009-04-15 | 北汽福田汽车股份有限公司 | Cooling system for coach and coach equipped therewith |
| CN201739001U (en) * | 2010-06-23 | 2011-02-09 | 浙江豪情汽车有限公司 | High/low speed control circuit for two automobile fans |
| CN202325804U (en) * | 2011-10-27 | 2012-07-11 | 中通客车控股股份有限公司 | Thermal management control device for vehicle power assembly |
-
2011
- 2011-10-27 CN CN2011103315584A patent/CN102418584A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001349217A (en) * | 2000-06-08 | 2001-12-21 | Fuji Heavy Ind Ltd | Vehicular radiator cooling fan control device |
| JP2003013735A (en) * | 2001-06-28 | 2003-01-15 | Kawasaki Heavy Ind Ltd | Fan controller for radiator |
| CN201220592Y (en) * | 2007-11-23 | 2009-04-15 | 北汽福田汽车股份有限公司 | Cooling system for coach and coach equipped therewith |
| CN201739001U (en) * | 2010-06-23 | 2011-02-09 | 浙江豪情汽车有限公司 | High/low speed control circuit for two automobile fans |
| CN202325804U (en) * | 2011-10-27 | 2012-07-11 | 中通客车控股股份有限公司 | Thermal management control device for vehicle power assembly |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104149719A (en) * | 2014-08-27 | 2014-11-19 | 苏州工业园区驿力机车科技有限公司 | Automobile heat radiation local area network |
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Application publication date: 20120418 |
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