CN103114902B - Motor cooling water pump assembly and flow-quantity controlling method thereof - Google Patents
Motor cooling water pump assembly and flow-quantity controlling method thereof Download PDFInfo
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- CN103114902B CN103114902B CN201210426983.6A CN201210426983A CN103114902B CN 103114902 B CN103114902 B CN 103114902B CN 201210426983 A CN201210426983 A CN 201210426983A CN 103114902 B CN103114902 B CN 103114902B
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Abstract
The invention discloses a motor cooling water pump assembly and a flow-quantity controlling method of the motor cooling water pump assembly. According to the water pump assembly, a first rotating valve and a second rotating valve are arranged on a water pump shell body, a motor electronic control unit (ECU) controls the opening degree of the first rotating valve and the second rotating valve through a stepping motor according to the environment temperature and operating conditions of the motor so as to achieve rapid adjustment of the temperature of the motor, the ECU records the rotating angle value of the stepping motor simultaneously when the flow quantity is adjusted to be appropriate, the rotating angle value is used for replacing corresponding controlling data stored in the ECU, and the controlling data can be updated in real time. According to the motor cooling water pump assembly, the motor is short in warming-up time and can avoid overcooling when being under partial load, the temperature control of the motor is rapid and accurate, and therefore burning of the motor is more sufficient, discharge of the motor is reduced, and the economical performance of the motor is improved.
Description
Technical field
The present invention relates to a kind of engine cooling water pump of automobile, be specifically related to a kind ofly engine cooling water flow automatically to be regulated with the water pump complement of controlled cooling model coolant-temperature gage and corresponding flow control method according to engine operating condition.
Background technique
Motor car engine has a best operating temperature, and at such a temperature, each matching gap etc. run between parts is in the optimum state, and now the working efficiency of motor is high, and burning is more abundant, and can reduce the discharge of motor to greatest extent.At present, the temperature of motor car engine controls normally to be realized by a kind of wax formula thermoregulator with major and minor valve, the opening and closing of control bound door and auxiliary-valve while of thermoregulator, main valve is used for controlled cooling model water major cycle passage, and auxiliary-valve is then for controlled cooling model water short circle passage.When the engine starts, the temperature of engine cooling water is lower, now the main valve of thermoregulator is in closed condition, auxiliary-valve is then in opening state, engine cooling water walks short circle, and cooling water by radiator cold but, does not thus cool motor, the temperature of motor can rise the warming-up realizing motor quickly, and then makes to start function to enter normal working state.When engine work, engine cooling water temperature raises, paraffin in thermoregulator melting dilation in inductor, and then the push rod promoted in it moves axially, while push rod movement, drive thermoregulator main valve to open, and correspondingly close auxiliary-valve, now engine cooling water walks major cycle, motor is cooled, thus engine temperature is reduced, to guarantee that it is operated in rational temperature range.
Such as, in Chinese patent literature disclosed " a kind of thermoregulator ", its application publication number is CN102588067A, it comprise lid, support, liftout mechanism and be fixed on liftout mechanism with the main valve of its interlock, auxiliary-valve and Sealing, liftout mechanism is made up of push rod, main spring, column wax formula inductor, and column wax formula inductor is provided with inductor base, inductor upper cover, be provided with wax room between inductor base and inductor upper cover, between push rod and wax room, be provided with elastomer diaphragm; Described inductor upper cover, between push rod and elastomer diaphragm, be provided with rubber seal.This thermoregulator adopts temperature-sensing wax to do power source, utilizes the thermal expansion force of wax to cause the axial deformation of caulking gum diaphragm, thus promotion valve is opened, closed action.
But, control engine temperature by wax formula thermoregulator and there is following problem: owing to being the temperature indirectly being controlled motor by the temperature of control engine cooling water, therefore can not regulate the aperture of thermoregulator valve according to the operating mode of motor reality, the temperature accurately controlling motor can not be realized.Automobile engine cooling water pump designs according to cooling performance required during maximum heating load, therefore when motor is in the slow-speed of revolution, low load operational state, motor is cooled excessively, and the reaction velocity of wax formula thermoregulator is slow, thus it is large to make engine water temperature fluctuate, and is unfavorable for the reduction of engine consumption and discharge.
Summary of the invention
The object of the invention is to solve can not accurately control the temperature of motor and engine water temperature according to motor actual conditions and to fluctuate large problem existing for prior art, there is provided a kind of and can control the engine cooling water pump assembly of motor and corresponding flow control method quickly and accurately according to motor actual conditions, thus rapid warming-up when enabling motor heat engine, and improve the cooling effect of motor when sub load, to make the burning of motor more abundant, reduce the discharge of motor, improve the economic performance of motor.
To achieve these goals, the present invention is by the following technical solutions:
A kind of engine cooling water pump assembly, comprise water pump cover, water pump cover one end is provided with impeller cavity, impeller shaft is provided with in impeller cavity, impeller shaft is fixed with impeller, one end that impeller shaft stretches out outside impeller cavity is fixed with driving wheel, described impeller cavity is provided with pump outlet on the sidewall of radial direction, rotating water outlet spool is provided with in pump outlet, thus form the first changeover valve, it is the columniform water inlet valve pocket of axially-aligned that described water pump cover is also provided with impeller cavity, the sidewall of water inlet valve pocket is provided with the first water intake, rotating water inlet spool is provided with in water inlet valve pocket, water inlet valve pocket forms the second changeover valve with water inlet spool, the axis that described inlet valve in-core is provided with along water inlet valve pocket extends and the intake tunnel be communicated with impeller cavity, corresponding in the axial direction the first water inlet position of water inlet spool is provided with the first water inlet communicated with intake tunnel, also be provided with control motor in water pump cover, control motor and be associated with water inlet spool and water outlet spool respectively by transmission system.
The present invention is when controlling for engine temperature, existing paraffin formula thermoregulator can be saved, pump outlet is connected with the water intake of engine water jacket, first water intake is then connected with the water outlet of radiator, like this, the first changeover valve on water pump complement can be used for controlling the water outlet that water pump outputs to engine water jacket, and the second changeover valve then enters water pump for the cooling water controlled through radiator cooling.The present invention is no longer independent controls engine temperature according to cooling water temperature, but control motor is controlled fast according to conditions such as motor real-world operation operating mode (rotating speed, load etc.), engine cooling water temperature, ambient temperatures by the ECU of motor, and then control the opening and closing of two changeover valves, to make engine operation in optimum temperature.Compared with existing paraffin formula thermoregulator, the speed of its temperature adjusting is faster, particularly can regulate and control according to the actual operating mode of motor, avoid being cooled excessively when motor is in the slow-speed of revolution, low load operational state, thus make the burning of motor more abundant, be conducive to the discharge reducing motor, improve the economic performance of motor.When motor just starts, first, second changeover valve is all in closed condition, now the cooling water of engine interior be close completely, immobilising, cooling water carries out self-loopa in water pump, and therefore whole motor can realize warming-up more quickly.
As preferably, the sidewall of described water inlet valve pocket is also provided with the second water intake, on water inlet spool, corresponding second water inlet position is provided with the second water inlet communicated with intake tunnel.Second water intake is used for being connected with the water outlet of machine oil cooler, thus make the second changeover valve formed into water spool and water inlet valve pocket can control two passes simultaneously, when controlling Electric Machine Control water inlet valve core rotation to regulate the cooling water flow of motor, the cooling water flow by machine oil cooler can be regulated and controled, with the heat radiation of controller oil cooler simultaneously.
As preferably, outer side wall first, second water inlet place corresponding in the axial direction of described water inlet spool has arc convex shoulder respectively, and water inlet valve pocket then has the arc-shaped recess with arc convex shoulder adaptation respectively in first, second water inlet.Water inlet spool arranges two arc convex shoulders, the arc of arc convex shoulder in evagination on longitudinal cross-section, thus make whole water inlet spool be Pear Shaped, like this, the water inlet spool that inside is provided with intake tunnel has higher compressive strength in first, second water inlet, thus be conducive to improving the sealability between water inlet spool and water inlet valve pocket, and the wall thickness of water inlet spool can be reduced, be conducive to weight reduction and manufacturing.In addition, the overall water inlet spool in Pear Shaped greatly can reduce the area of contact with water inlet valve pocket, thus surface friction drag when can reduce water inlet valve core rotation, and then be conducive to controlling the control of motor to water inlet spool.
As preferably, be provided with valve rod supporting base in the intake tunnel of described water inlet spool, the center of valve rod supporting base arranges the bearing hole with spline; One water inlet valve rod is plugged in bearing hole, and water inlet valve rod is provided with the spline with the spline adaptation of bearing hole, and water inlet valve rod is connected with turbine away from impeller cavity one end, and the rotating shaft of control motor arranges the worm screw engaged with turbine; Water inlet spool is being provided with driving gear near impeller cavity one end, and the valve rod of water outlet spool is provided with the driven gear engaged with driving gear.
The present invention makes control motor drive water inlet valve core rotation by worm and gear, the opening and closing of spool by driving gear and driven gear synchronization control first changeover valve of simultaneously intaking, thus facilitates the cooperation of opening/closing time between first, second changeover valve.Because water inlet spool plays the effect of transmission shaft simultaneously, thus the structure simplifying whole transmission system is conducive to, and worm and gear has larger velocity ratio, greatly can reduce and control the impact of the error of motor when rotating on water inlet spool rotation angle, be conducive to the control accuracy of raising two changeover valves, and reduce the required precision to controlling motor.
As preferably, described impeller cavity is also provided with return pipe on the sidewall of radial direction, and the arc convex shoulder place that spool is being provided with the first water inlet that intakes also is provided with backwater hole, and the sidewall of water inlet valve pocket is then provided with backwater mouth accordingly, and described return pipe is communicated with backwater mouth.Return pipe, backwater mouth, backwater hole form the self-circulation channel of a water pump, thus make the first changeover valve formed into water spool and water inlet valve pocket can control three passages simultaneously.During engine work, first, second changeover valve is opened, and self-circulation channel is cut off, and cooling water walks major cycle; When engine start warming-up, first, second changeover valve is closed simultaneously, and self-circulation channel is opened, and the cooling water inside water pump, by self-circulation channel self-loopa, is thus conducive to load when reducing water pump self-loopa.
As preferably, described first water inlet is the isosceles triangle of lateral arrangement.Like this when spool of intaking increases an identical rotation angle, corresponding water inlet sectional area value added can become large linearly, thus when the temperature of motor is just beyond optimum temperature value, the flow value added of cooling water is less, if the temperature of motor exceed optimum temperature value more time, the flow value added that water inlet spool increases an identical rotation angle and cooling water is comparatively large, be thus both conducive to engine temperature higher time fast cooling, be conducive to again the accurate control of engine temperature.
A kind of engine cooling water pump assembly flow control method of the present invention, comprises the steps:
A. set engine temperature change least unit value and water outlet spool and water inlet valve core rotation time minimum rotation angle, the ECU of motor by repeated acquisition engine temperature data interval time set in advance, and compares with the engine operating temperature optimum value preset;
B. motor is when just starting, and engine temperature is lower than engine operating temperature optimum value, and ECU controls first, second changeover valve and closes, and water pump carries out self-loopa, to realize motor rapid warming-up:
C. when engine temperature is increased at least one the least unit value of operating temperature optimum value preset, ECU environmentally temperature, engine operation condition and the control data that prestores sends command adapted thereto to control motor and makes it rotate an angle, and by transmission system use water valve core and water inlet spool positively rotate a corresponding angle, now first, second changeover valve opens a corresponding opening, and the cooling water of corresponding flow starts periodic duty and takes away unnecessary heat;
When the absolute value of the difference d. between the engine temperature data that the ECU of motor collects again and optimum value is less than a least unit value, ECU controls first, the aperture of the second changeover valve remains unchanged, if the difference between engine temperature data and optimum value on the occasion of and absolute value is greater than a least unit value time, then ECU control electric machine rotation is used water valve core and is positively rotated a minimum rotation angle with water inlet spool, if the difference between engine temperature data and optimum value be negative value and absolute value is greater than a least unit value time, then ECU control electric machine rotation is used water valve core and is oppositely rotated a minimum rotation angle with water inlet spool, by that analogy, till the absolute value of the difference between engine temperature data and optimum value is less than a least unit value.
The control mode of prior art by paraffin formula thermoregulator has been abandoned in flow control method of the present invention, change electronic control into, the control data that ECU prestores comprises the control electric machine rotation angle of ambient temperature, engine operation condition and correspondence, when the temperature of motor exceedes optimum value, ECU can control the aperture of first, second changeover valve rapidly according to control data, thus the temperature of motor can be adjusted rapidly, make to start technical ability to remain on optimum Working.Particularly, after ECU to control the aperture of first, second changeover valve according to control data, also can continue the temperature data information gathering motor, and correspondingly use water valve core and water inlet valve core rotation minimum rotation angle, to finely tune the temperature of motor, it is made to remain on optimum working temperature.
As preferably, in steps d, when the absolute value of the difference between the engine temperature data that ECU collects and optimum value is less than a least unit value, the record total rotational angle angle value of control motor now, and the control electric machine rotation angle value being replaced corresponding now ambient temperature, engine operation condition in the control data prestored.
Because the control data prestored in ECU has error unavoidably when controlling the temperature of motor, thus the present invention by control data during automobile actual travel stored in ECU, and replace original control data, thus make control data more meet the practical operation situation of automobile, particularly, along with the increase of Vehicle-Miles of Travel, the radiator performances of motor etc. can change to some extent, and above-mentioned control data of the present invention is real-time update, thus make the flow adjustment process of cooling water faster, guarantee that motor always works in optimum temperature range.
In sum, the present invention has following beneficial effect: engine warm-up time is shorter, avoids the supercooling of motor when sub load, the temperature of motor controls quick and precisely, thus make the burning of motor more abundant, and reduce the discharge of motor, improve the economic performance of motor.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of engine cooling water pump assembly of the present invention.
Fig. 2 is the structural representation after engine cooling water pump assembly of the present invention removes water pump cover.
In figure: 1, water pump cover 2, impeller cavity 21, impeller shaft 22, impeller 23, driving wheel 24, water outlet spool 25, pump outlet 3, water inlet valve pocket 31, first water intake 32, second water intake 4, water inlet spool 41, water inlet 44, arc convex shoulder 42, first water inlet 43, second, backwater hole 5, control motor 61, turbine 62, worm screw 63, driving gear 64, driven gear 65, idle pulley
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention will be further described.
What engine cooling water pump assembly flow control method of the present invention adopted is as Fig. 1, engine cooling water pump assembly shown in Fig. 2, this engine cooling water pump assembly comprises water pump cover 1, impeller cavity 2 and columniform water inlet valve pocket 3 has been arranged side by side in water pump cover, impeller shaft 21 is provided with in the impeller cavity being arranged on water pump cover one end, impeller shaft is fixed with impeller 22, it is outer and be fixed with driving wheel 23 at external part that impeller shaft one end reaches impeller cavity, this driving wheel is primarily of engine-driving, also drive by motor, impeller cavity arranges pump outlet 25 on the sidewall of radial direction, rotating water outlet spool 24 is set in pump outlet, water outlet spool is spherical in shape, it is arranged corresponding through hole, thus form the first changeover valve.
Water inlet valve pocket is along the axially-aligned of impeller cavity, and it is coaxially arranged with impeller cavity, the sidewall of water inlet valve pocket has shifted to install the first water intake 31, second water intake 32 vertically, then correspondingly arrange rotating water inlet spool 4 in water inlet valve pocket, water inlet valve pocket forms the second changeover valve with water inlet spool.Water inlet spool is totally a Thin-shell component, its inside is that the axis of edge water inlet valve pocket extends and the intake tunnel be communicated with impeller cavity, water inlet spool first, second water inlet position corresponding in the axial direction arranges the first water inlet 42 and the second water inlet 43 communicated with intake tunnel respectively, and first, second water inlet is the isosceles triangle of lateral arrangement.
In order to improve the compressive strength of water inlet spool, to strengthen its sealability, outer side wall first, second water inlet place corresponding in the axial direction of water inlet spool has arc convex shoulder 41 respectively, thus make into water spool entirety in Pear Shaped, correspondingly, valve pocket of intaking then has the arc-shaped recess with arc convex shoulder adaptation respectively in first, second water inlet.Certainly, for ease of manufacturing, first, second water inlet can arrange elastomer connector, this elastomer connector is arranged the through hole of water inlet, and one end arranges arc-shaped recess and fits with the arc convex shoulder of water inlet spool in the inner part.
Impeller cavity is also provided with return pipe (not shown) on the sidewall of radial direction, water inlet spool then arranges backwater hole 44 at the arc convex shoulder place arranging the first water inlet, the sidewall of water inlet valve pocket then arranges backwater mouth (not shown) accordingly, and return pipe is connected with backwater mouth, thus form the self-circulation channel of a water pump.
In addition, in the intake tunnel of water inlet spool, valve rod supporting base (not shown) is set, the center of valve rod supporting base arranges the bearing hole with spline, this bearing hole is coaxial with water inlet spool, water inlet valve rod is plugged in bearing hole, water inlet valve rod is arranged the spline with the spline adaptation of bearing hole, thus form spline joint with transmitting torque with bearing hole.Water inlet valve rod has turbine 61 at one end spline joint away from impeller cavity, one is fixed on the control motor 5 in water pump cover, its rotating shaft is arranged the worm screw 62 engaged with turbine, thus make control motor by the rotation of Worm Wheel System Systematical control water inlet spool.Control motor and be preferably stepper motor or actuating motor, to realize the accurate control of rotation angle.
Further, water inlet spool is arranging driving gear 63 near impeller cavity one end, the valve rod of water outlet spool and the valve rod parallel to an axis of water inlet spool, the valve rod of water outlet spool is arranged the driven gear 64 engaged with driving gear, like this, can the opening and closing of synchronization control first changeover valve when controlling Electric Machine Control second changeover valve opening and closing.Certainly between driving gear and driven gear, also idle pulley 65 can be set, thus be conducive to the layout of structure, reduce the boundary dimension of gear.Certainly, driving gear also can be arranged on on water valve rod, arranges corresponding water passage hole simultaneously, make the intake tunnel into water spool keep being communicated with impeller cavity on driving gear.
Pump outlet is connected with the water intake of engine water jacket by coolant pump assembly of the present invention in use, first water intake is then connected with the water outlet of radiator, second water intake is then connected with the water outlet of machine oil cooler, like this, the first changeover valve on water pump complement can be used for controlling the water outlet that water pump outputs to engine water jacket, second changeover valve then enters water pump for the cooling water controlled through radiator cooling, regulate and control the cooling water flow by machine oil cooler simultaneously, with the heat radiation of controller oil cooler, the water outlet of engine water jacket is connected with the water intake of machine oil cooler with the water intake of radiator simultaneously.In addition, corresponding temperature transducer need be set to gather ambient temperature, engine temperature, the data such as cooling water temperature, and, according to the minimum rotation angle when least unit value of the requirement of control accuracy setting engine temperature change and water outlet spool and water inlet valve core rotation, the ECU of motor is by constantly repeated acquisition engine temperature data interval time set in advance, and compare with the engine operating temperature optimum value preset, concrete interval time can be determined according to the requirement of control accuracy, generally be advisable with 2-4 minute, preferred value is 3 minutes.
Motor is when just starting, engine temperature is lower than engine operating temperature optimum value, ECU controls first, second changeover valve and closes completely, the cooling water of water pump carries out self-loopa in the self-circulation channel that return pipe, backwater mouth, backwater hole are formed, the cooling water of engine interior is closed do not flow completely, thus realizes the rapid warming-up of motor.
When engine temperature is increased at least one the least unit value of operating temperature optimum value preset, ECU environmentally temperature, engine operation condition and the control data that prestores sends command adapted thereto to control motor and makes it rotate an angle, and by transmission system use water valve core and water inlet spool positively rotate a corresponding angle, now first, second changeover valve opens a corresponding opening, and the cooling water of corresponding flow starts periodic duty and takes away unnecessary heat.
When the absolute value of the difference between the engine temperature data that the ECU of motor collects again and optimum value is less than a least unit value (illustrating that aforesaid adjustment has made engine operation in operating temperature optimum value), the aperture that ECU controls first, second changeover valve remains unchanged, thus makes cooling water keep original flow constant; If the difference between engine temperature data and optimum value on the occasion of and absolute value is greater than a least unit value time, engine temperature now still exceedes optimum value, then ECU control electric machine rotation is used water valve core and is positively rotated a minimum rotation angle with water inlet spool, make the aperture of first, second changeover valve become large, thus make the flow of cooling water increase with the cooling effect increased motor; If the difference between engine temperature data and optimum value be negative value and absolute value is greater than a least unit value time, engine temperature is now lower than optimum value, then ECU control electric machine rotation is used water valve core and is oppositely rotated a minimum rotation angle with water inlet spool, the aperture of first, second changeover valve is diminished, thus makes the flow of cooling water reduce to make to start function to be operated in optimum working temperature.By that analogy, ECU constantly adjusts the aperture of first, second changeover valve, till the absolute value of the difference between engine temperature data and optimum value is less than a least unit value, to guarantee that engine operation is in optimum working temperature.
In addition, when the absolute value of the difference between the engine temperature data that ECU collects and optimum value is less than a least unit value, we can make the ECU record total rotational angle angle value of control motor now, and replaced the control electric machine rotation angle value of corresponding now ambient temperature, engine operation condition in the control data prestored, thus control data is constantly real time updated, it is made more to meet the practical operation situation of automobile, like this, the flow adjustment process of cooling water is faster, guarantees that motor always works in optimum temperature range.
It should be noted that like this, total rotational angle angle value herein refers to and controls the rotation angle of motor in deviation from origin after several times adjustment.
Further, we also can set up an electronic water pump between the water outlet of engine water jacket and the water intake of machine oil cooler, and like this, when motor is shut down, electronic water pump can continue pumping cooling water, waste heat are taken to radiator and discharge.
Claims (8)
1. an engine cooling water pump assembly, comprise water pump cover (1), water pump cover one end is provided with impeller cavity (2), impeller shaft (21) is provided with in impeller cavity, impeller shaft is fixed with impeller (22), impeller shaft one end of stretching out outside impeller cavity is fixed with driving wheel (23), it is characterized in that, described impeller cavity is provided with pump outlet (25) on the sidewall of radial direction, rotating water outlet spool (24) is provided with in pump outlet, thus form the first changeover valve, it is the columniform water inlet valve pocket (3) of axially-aligned that described water pump cover is also provided with impeller cavity, the sidewall of water inlet valve pocket is provided with the first water intake (31), rotating water inlet spool (4) is provided with in water inlet valve pocket, water inlet valve pocket forms the second changeover valve with water inlet spool, the axis that described inlet valve in-core is provided with along water inlet valve pocket extends and the intake tunnel be communicated with impeller cavity, corresponding in the axial direction the first water inlet position of water inlet spool is provided with the first water inlet (42) communicated with intake tunnel, also be provided with in water pump cover and control motor (5), control motor and be associated with water inlet spool and water outlet spool respectively by transmission system.
2. a kind of engine cooling water pump assembly according to claim 1, it is characterized in that, the sidewall of described water inlet valve pocket is also provided with the second water intake (32), on water inlet spool, corresponding second water inlet position is provided with the second water inlet (43) communicated with intake tunnel.
3. a kind of engine cooling water pump assembly according to claim 2, it is characterized in that, outer side wall first, second water inlet place corresponding in the axial direction of described water inlet spool has arc convex shoulder (41) respectively, and water inlet valve pocket then has the arc-shaped recess with arc convex shoulder adaptation respectively in first, second water inlet.
4. a kind of engine cooling water pump assembly according to claim 1 or 2 or 3, is characterized in that, is provided with valve rod supporting base in the intake tunnel of described water inlet spool, and the center of valve rod supporting base arranges the bearing hole with spline; One water inlet valve rod is plugged in bearing hole, and water inlet valve rod is provided with the spline with the spline adaptation of bearing hole, and water inlet valve rod is connected with turbine (61) away from impeller cavity one end, and the rotating shaft of control motor arranges the worm screw (62) engaged with turbine; Water inlet spool is being provided with driving gear (63) near impeller cavity one end, and the valve rod of water outlet spool is provided with the driven gear (64) engaged with driving gear.
5. a kind of engine cooling water pump assembly according to claim 3, it is characterized in that, described impeller cavity is also provided with return pipe on the sidewall of radial direction, the water inlet arc convex shoulder place that spool is being provided with the first water inlet is also provided with backwater hole (44), the sidewall of water inlet valve pocket is then provided with backwater mouth accordingly, and described return pipe is communicated with backwater mouth.
6. a kind of engine cooling water pump assembly according to claim 1 or 2 or 3, is characterized in that, described first water inlet is the isosceles triangle of lateral arrangement.
7., based on an engine cooling water pump assembly flow control method according to claim 1, it is characterized in that, comprise the steps:
A. set engine temperature change least unit value and water outlet spool and water inlet valve core rotation time minimum rotation angle, the ECU of motor by repeated acquisition engine temperature data interval time set in advance, and compares with the engine operating temperature optimum value preset;
B. motor is when just starting, and engine temperature is lower than engine operating temperature optimum value, and ECU controls first, second changeover valve and closes, and water pump carries out self-loopa, to realize motor rapid warming-up:
C. when engine temperature is increased at least one the least unit value of operating temperature optimum value preset, ECU environmentally temperature, engine operation condition and the control data that prestores sends command adapted thereto to control motor and makes it rotate an angle, and by transmission system use water valve core and water inlet spool positively rotate a corresponding angle, now first, second changeover valve opens a corresponding opening, and the cooling water of corresponding flow starts periodic duty and takes away unnecessary heat;
When the absolute value of the difference d. between the engine temperature data that the ECU of motor collects again and optimum value is less than a least unit value, ECU controls first, the aperture of the second changeover valve remains unchanged, if the difference between engine temperature data and optimum value on the occasion of and absolute value is greater than a least unit value time, then ECU control electric machine rotation is used water valve core and is positively rotated a minimum rotation angle with water inlet spool, if the difference between engine temperature data and optimum value be negative value and absolute value is greater than a least unit value time, then ECU control electric machine rotation is used water valve core and is oppositely rotated a minimum rotation angle with water inlet spool, by that analogy, till the absolute value of the difference between engine temperature data and optimum value is less than a least unit value.
8. engine cooling water pump assembly flow control method according to claim 7, it is characterized in that, in steps d, when the absolute value of the difference between the engine temperature data that ECU collects and optimum value is less than a least unit value, the record total rotational angle angle value of control motor now, and the control electric machine rotation angle value being replaced corresponding now ambient temperature, engine operation condition in the control data prestored.
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| CN201210426983.6A CN103114902B (en) | 2012-10-31 | 2012-10-31 | Motor cooling water pump assembly and flow-quantity controlling method thereof |
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| CN201210426983.6A CN103114902B (en) | 2012-10-31 | 2012-10-31 | Motor cooling water pump assembly and flow-quantity controlling method thereof |
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| CN103114902A (en) | 2013-05-22 |
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Address after: 315800 No. 1528 Hengshan Road, Xintao Street, Beilun District, Ningbo City, Zhejiang Province Co-patentee after: Ji'nan Geely Auto Parts Co., Ltd. Patentee after: Zhejiang Geely Power Assembly Co., Ltd. Co-patentee after: Hunan Luoyou Engine Parts Co., Ltd. Co-patentee after: Zhejiang Geely Holding Group Co., Ltd. Address before: 315800 No. 1528 Hengshan Road, Xintao Street, Beilun District, Ningbo City, Zhejiang Province Co-patentee before: Ji'nan Geely Auto Parts Co., Ltd. Patentee before: Zhejiang Geely Luoyou Engine Co., Ltd. Co-patentee before: Hunan Luoyou Engine Parts Co., Ltd. Co-patentee before: Zhejiang Geely Holding Group Co., Ltd. |
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Effective date of registration: 20200610 Address after: 315800 Zhejiang city of Ningbo province Beilun xinqie street Mt. Hengshan Road No. 1528 Co-patentee after: HUNAN LUOYOU ENGINE PARTS Co.,Ltd. Patentee after: ZHEJIANG GEELY POWER ASSEMBLY Co.,Ltd. Co-patentee after: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. Address before: 315800 Zhejiang city of Ningbo province Beilun xinqie street Mt. Hengshan Road No. 1528 Co-patentee before: JI'NAN GEELY AUTO PARTS Co.,Ltd. Patentee before: ZHEJIANG GEELY POWER ASSEMBLY Co.,Ltd. Co-patentee before: HUNAN LUOYOU ENGINE PARTS Co.,Ltd. Co-patentee before: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. |