CN102102578A - Cooling system and method for implementing temperature management in the cooling system - Google Patents

Cooling system and method for implementing temperature management in the cooling system Download PDF

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Publication number
CN102102578A
CN102102578A CN201010585881XA CN201010585881A CN102102578A CN 102102578 A CN102102578 A CN 102102578A CN 201010585881X A CN201010585881X A CN 201010585881XA CN 201010585881 A CN201010585881 A CN 201010585881A CN 102102578 A CN102102578 A CN 102102578A
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controlling element
final controlling
cooling system
value
temperature parameter
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CN102102578B (en
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B·舒马赫
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Ford Global Technologies LLC
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Ford Global Technologies LLC
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/14—Controlling of coolant flow the coolant being liquid

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Control Of Temperature (AREA)

Abstract

The invention relates to a cooling system in an internal combustion engine of automotive vehicle and a method for implementing temperature management in the cooling system. The method can control a plurality of (N) temperature parameters in the cooling system; and the cooling system has a plurality of (M) actuators and control configurations accordingly. The control configuration has a controller based on a matrix structure; the matrix structure assigns an output value (Yij, i=1,..N, j=1,..M) to at least one input value (Xi, i=1,..N) with predetermined request value form about one of the temperature parameters of every actuator in every case, in order to achieve the purpose of controlling every temperature parameter by every actuator based on the output value.

Description

Cooling system and the method that is used for implementing temperature treatment at cooling system
Technical field
The present invention relates to be used for motor vehicle explosive motor cooling system and relate to the method that is used for implementing temperature treatment at cooling system.Specifically, the present invention relates to handle therein the cooling system of a plurality of temperature parameters, this cooling system has a plurality of final controlling element and control configuration for this purpose.
Background technique
For example in the power train of motor vehicle, need follow various thermoae limit values at complex system.In addition, must adjust different temperature parameters respectively to reach optimum value.Under these circumstances, during the temperature treatment of this complex system, use multiple arrangement usually so that handle parts independently or the temperature of subtense angle.These Effectors can be for example one or more fan, valve, thermostat or pump etc.Therefore, might for example in the cooling liquid loop, handle chilled liquid temperature by different actuator element (for example by thermostat and fan).
Under these circumstances, during the temperature treatment in motor vehicle such problem may take place, the identical controlled variable of promptly a plurality of control ring influences, and these control rings are not matching each other aspect its control structure.But, can not bestly activate final controlling element or cooling unit (for example not considering that independently final controlling element is to the influence of other parts or temperature parameter during this period) and can cause utilizing available electrical energy best.In addition, may become inaccuracy and/or implement of described control with inadequate control rate.
Except other content, DE 10163944A1 also discloses the method for electronic actuatable parts of the cooling system of the explosive motor that is used for actuating automobile, and wherein the controlled unit of these parts activates and wherein implements this actuating by guide's controller.Controller can be attached on described guide's controller, should be additional thereby implement by the priority of controller value, so that revise the controller interference signal so that all control target all can reach higher efficient.By described priority, the part of the controller value that might for example only will be used to activate is delivered to electric actuatable parts, and according to priority, this causes minimum actuating energy, its objective is the best overall efficient that realizes whole cooling system or motor vehicle.
Summary of the invention
The method that the objective of the invention is to make the cooling system and being used for of the explosive motor of motor vehicle to implement temperature treatment at described cooling system can be used, and this method allows the architecture and the transparentizing and connecting flexibly simultaneously of the actuating of different final controlling element.
This purpose is by realizing according to the cooling system of the feature of this specification with according to the method for the feature of this specification.
At the cooling system that is used for the explosive motor of motor vehicle according to the present invention, might handle a plurality of temperature parameters, described cooling system has a plurality of final controlling element and control configuration for this purpose.
Described cooling system is characterised in that described control configuration has the controller based on matrix structure, this matrix structure distributes output value to each final controlling element at least one input value about the predetermined value request form of one in the described temperature parameter have in each case, to reach the purpose of handling each temperature parameter based on described output value by each final controlling element.
The present invention is especially based on owing to having used the fact based on the controller of matrix structure to allow final controlling element the different temperatures parameter to be had the idea of Different Effects, in order to handle each temperature parameter, this matrix structure allows the connection or the combination of the independently actuating operation of final controlling element.
Might allow the independently different qualities of final controlling element in mode optionally like this, on the one hand.Therefore, to the more efficient utilization of energy and more precise dose control and thereby higher efficient all can in the power train of motor vehicle, realize.Under these circumstances, the connection of the actuating of various final controlling element operation is characterised in that the specific transparency that relies on according to the control based on matrix structure of the present invention, therefore, for example during the configuration of cooling system, can implement flexible definition or modification according to specific requirement or condition to the connection of the actuating of final controlling element and/or the weighting implemented respectively.This allows to implement temperature treatment with systematize, transparent and flexible way in cooling system.
As the input value according to the matrix structure on the basis of controller of the present invention can be to have the effective value of cooling request form that request is used for the cooling energy of specified temp parameter (for example chilled liquid temperature, air-conditioning system temperature, under-hood temperature etc.).This value request can be given as for example percent value and assumed value, for example from 0% to 100% scope.Output value according to controller of the present invention also can be the effective value with form of actuating value, and this actuating value is represented the amount of the available cooling energy of particular actuator (being for example blower, valve, thermostat, pump etc. of specific cooling unit) in each case respectively.
According to an embodiment, distribute in each case during output value to an input value of being scheduled to by matrix structure, final controlling element is in order to handle the mode weighting of actuating operation to be scheduled to by matrix structure of each temperature parameter.Specifically, thus this matrix structure can have weighting factor and/or bias to be carried out about the priority in response to the action of the different final controlling element of cooling request or cooling unit.
According to an embodiment, matrix structure has value (a I, jb I, j), wherein the following rule of each basic of distribution takes place:
y I, j=x iA I, j+ b I, jI=1 ..., N and j=1 ..., M
Wherein
x i: about the input value of i temperature parameter
y I, j: the actuating value of i temperature parameter and j final controlling element
a I, j: the multiplication constant of i temperature parameter and j final controlling element
b I, j: the bias of i temperature parameter and j final controlling element
The invention still further relates to the method that is used for carrying out temperature treatment of feature given this description at the cooling system of the explosive motor of motor vehicle.
For the preferred embodiments of the present invention and benefit, with reference to above explanation about control configuration according to the present invention.
Can in specification and claims, find the further embodiment of the present invention.
According to a further aspect in the invention, provide a kind of method of temperature that is used to regulate the cooling system of explosive motor, described cooling system has a plurality of final controlling element with the control temperature.Described method comprises: receive the request of cooling cooling liquid; By controller described request is converted to a plurality of actuating values corresponding to each final controlling element; And by a plurality of described final controlling element based on the temperature of regulating described cooling system corresponding to the actuating value of each final controlling element.
In one embodiment, the conversion described request comprises bias and the factor weighting described request to be used for each final controlling element, thereby obtains to be used for the described actuating value of each final controlling element.
In another embodiment, described final controlling element comprises in fan, Proportional valve, pump and the grill cover one.
Embodiment
Explain the present invention in more detail with reference to preferred embodiment below.
In order to explain exemplary embodiment of the present invention, table 1 shows specific matrix, can be based on it according to controller of the present invention.
Described matrix is based on a kind of cooling system, and wherein (in the example of table 1: N=4) individual temperature parameter and " M " are (in the example of table 1: M=4) individual final controlling element for above-mentioned purpose provides " N " that can be handled.In this article, independently temperature parameter possible substantially by the subclass of all final controlling element, final controlling element, only single final controlling element is handled or even is not performed device and handles.
It is exemplary that final controlling element in the table 1 is selected.Therefore, cooling system might have more or fewer final controlling element.In addition, also can use other suitable final controlling element (for example electro-thermostat).
Table 1:
Figure BSA00000384629800041
Matrix shown in the table 1 with size (N*2M) comprise be assigned to the i temperature parameter each the row i (i=1 ..., N), be worth a in all cases I, j(j=1 ..., m) and b I, j(j=1 ..., M) all be imported in the M row.As explained below, these are multiplication constant a I, jWith bias b I, j, at the input value x relevant with the i temperature parameter iThe basis on calculate output value y by described multiplication constant and bias I, j, this output value y I, jCorrespond respectively to each final controlling element (j, j=1 ..., suitable actuating value M).For example, by matrix according to table 1, multiplication constant a 1,2=1.5 and bias b 1,2=0 is assigned to first (i=1) temperature parameter (=chilled liquid temperature) of second (j=2) final controlling element (=Proportional valve).
Usually calculate output value or actuating value according to following formula at this:
y I, j=x iA I, j+ b I, jI=1 ..., N and j=1 ..., M (1)
Wherein
x i: about the input value of i temperature parameter
y I, j: the actuating value of i temperature parameter and j final controlling element
a I, j: the multiplication constant of i temperature parameter and j final controlling element
b I, j: the bias of i temperature parameter and j final controlling element
Input value about the i temperature parameter is the value request that is given as percentage (for example feasible value in from 0% to 100% the scope) in the exemplary embodiment, it can be the output in the temperature management system, for example in response to the i temperature parameter is surpassed predetermined threshold, with predetermined difference value skew predetermined set point value or depart from the output that the fact of prespecified range produces.
Therefore, in concrete sample calculation, the too high or ultra predetermined threshold of crossing of chilled liquid temperature for example.As response to this, the request of the described cooling liquid of cooling is proposed, this request for example can be corresponding to 25% input value.According to the present invention, this value directly is not passed to one or more final controlling element afterwards but (corresponding to " the cooling request of cooling liquid ") at first is input in the controller of the matrix according to the present invention or shown in the table 1 as input value.
According to above-mentioned formula, with the bias and the factor weighting described request value that are transfused to corresponding first row that is used for temperature effect final controlling element independently in table 1, thereby the suitable actuating value of calculating these final controlling element is with as the output value according to controller of the present invention.
In concrete example, can from table 1, obtain actuating value 25%*1-5%=20%, it is the actuating value as the fan of first final controlling element, can from table 1, obtain actuating value 25%*1.5+0%=37.5% as the Proportional valve of second final controlling element, can from described form, obtain actuating value 25%*0+0%=0%, and can obtain as the radiator grid of the 4th final controlling element actuating value 25%*2+5%=55% of shell or radiator grid air flap especially as (T/C) pump of the 3rd final controlling element.
That calculate according to formula (1) in conjunction with above-mentioned matrix or by the actuating value of controller according to the present invention output thus corresponding to the general response (common reaction) of the weighting of each temperature effect final controlling element.In this article, the actuating of each final controlling element operation is suitably connected mutually by matrix configuration in the systematize mode.Therefore, for example might avoid when radiator grid especially shell (radiator grid air flap) activate fan the time when being closed.Like this, might guarantee that suitable the cooperation also of all final controlling element influences each temperature parameter (chilled liquid temperature in this example) jointly and with coordinated mode.
Simultaneously, independently this connection of the actuating operation of final controlling element on the matrix structure basis is transparent, therefore, for the temperature treatment in the cooling system provides systematize on the whole, transparent and solution flexibly, and the user who for example implements this configuration can carry out to the flexible setting that connects or modification and/or to the flexible setting or the modification of the weighting carried out respectively.

Claims (10)

1. cooling system that is used for the explosive motor of motor vehicle, it can handle a plurality of (N) temperature parameter in the described cooling system, and described cooling system has a plurality of (M) final controlling element and control configuration for this reason, wherein
Described control configuration has the controller based on matrix structure, and described matrix structure distributes output value (Y in each case Ij, i=1 ... N, j=1 ... M) at least one input value (Xi, the i=1 of each described final controlling element about the predetermined value request form of one in the described temperature parameter have, ... N), to reach the purpose of handling each described temperature parameter based on described output value by each final controlling element.
2. cooling system according to claim 1, wherein
Between each allotment period, in order to handle each described temperature parameter, with actuating operation by the predetermined described final controlling element of mode weighting of described matrix structure.
3. cooling system according to claim 1 and 2, wherein
Described matrix structure has value (a I, jb I, j), the following rule of wherein said each basic of distribution is carried out:
y I, j=x iA I, j+ b I, jI=1 ..., N and j=1 ..., M
Wherein
x i: about the input value of i temperature parameter
y I, j: the actuating value of described i temperature parameter and j final controlling element
a I, j: the multiplication constant of described i temperature parameter and described j final controlling element
b I, j: the bias of described i temperature parameter and described j final controlling element.
4. according to a described cooling system of claim in the claim 1 to 3, wherein
Described a plurality of final controlling element comprises at least one final controlling element, especially following all final controlling element of described final controlling element: fan, Proportional valve, pump and radiator grid air flap.
5. cooling system according to claim 4, wherein
Between described each allotment period, avoid when described radiator grid especially shell (air flap) activate described fan when closing simultaneously.
6. method of implementing temperature treatment in the cooling system of the explosive motor of motor vehicle, this method can be handled a plurality of (N) temperature parameter in the described cooling system, and described cooling system has a plurality of (M) final controlling element and control configuration for this reason, wherein
Controller based on matrix structure is used in the described control configuration, and described matrix structure distributes output value (Y in each case Ij, i=1 ... N, j=1 ... M) to each described final controlling element about one in the described temperature parameter as input value (X i, i=1 ... predetermined request value N), to reach the purpose of handling each described temperature parameter based on described output value.
7. method according to claim 6, wherein
Described cooling system is embodied as a described cooling system of claim in the claim 1 to 6.
8. method of temperature that is used to regulate the cooling system of explosive motor, described cooling system has a plurality of final controlling element with the control temperature, and described method comprises:
Receive the request of cooling cooling liquid;
By controller described request is converted to a plurality of actuating values corresponding to each final controlling element; And
By a plurality of described final controlling element based on the temperature of regulating described cooling system corresponding to the actuating value of each final controlling element.
9. method according to claim 8 is wherein changed described request and is comprised bias and factor weighting described request to be used for each final controlling element, thereby obtains to be used for the described actuating value of each final controlling element.
10. method according to claim 9, wherein said final controlling element comprise in fan, Proportional valve, pump and the grill cover.
CN201010585881.XA 2009-12-16 2010-12-08 Cooling system and method for implementing temperature management in the cooling system Active CN102102578B (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10163944A1 (en) * 2001-12-22 2003-07-03 Bosch Gmbh Robert Method for controlling electrically operable components of a cooling system, computer program, control unit, cooling system and internal combustion engine
US20060005790A1 (en) * 2002-05-31 2006-01-12 Marco Braun Method for controlling the heat in an automotive internal combustion engine
CN1884804A (en) * 2005-06-22 2006-12-27 比亚迪股份有限公司 Water cooling system of engine and cooling method thereof
CN101457685A (en) * 2007-12-14 2009-06-17 现代自动车株式会社 Coolant circulation circuit for engine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5574638A (en) * 1995-04-03 1996-11-12 Lu; Zhuxin J. Method of optimal scaling of variables in a multivariable predictive controller utilizing range control
DE102004034066B4 (en) * 2004-07-15 2012-10-31 Bayerische Motoren Werke Aktiengesellschaft Device for controlling the cooling of an internal combustion engine for motor vehicles

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10163944A1 (en) * 2001-12-22 2003-07-03 Bosch Gmbh Robert Method for controlling electrically operable components of a cooling system, computer program, control unit, cooling system and internal combustion engine
US20060005790A1 (en) * 2002-05-31 2006-01-12 Marco Braun Method for controlling the heat in an automotive internal combustion engine
CN1884804A (en) * 2005-06-22 2006-12-27 比亚迪股份有限公司 Water cooling system of engine and cooling method thereof
CN101457685A (en) * 2007-12-14 2009-06-17 现代自动车株式会社 Coolant circulation circuit for engine

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