CN105196859A - Hybrid electric vehicle water pump system and control method thereof - Google Patents
Hybrid electric vehicle water pump system and control method thereof Download PDFInfo
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- CN105196859A CN105196859A CN201510646032.3A CN201510646032A CN105196859A CN 105196859 A CN105196859 A CN 105196859A CN 201510646032 A CN201510646032 A CN 201510646032A CN 105196859 A CN105196859 A CN 105196859A
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Abstract
The invention provides a hybrid electric vehicle thermal management system. The system comprises an engine, a power battery, an electromagnetic clutch, a radiator, a water pump, an engine control module and a water pipe assembly and further comprises a motor, a crankshaft, a water pump control module and a storage battery, wherein the crankshaft passes through the axle center of the water pump and the axle center of the motor and enables the water pump to be connected with the motor, the water pump control module is connected with the motor and the engine control module, and the motor is connected with the storage battery through a cable. In this way, compactness of the arrangement of a forecabin is achieved, and the requirement for comfort of drivers and passengers during driving in winter is met.
Description
Technical field
The present invention relates to hybrid electric vehicle engine cooling technology field, particularly relate to a kind of hybrid vehicle water pump system and control method thereof.
Background technology
Day along with the resource such as Global Oil, natural fuels is becoming tight, and awareness of saving energy is rooted in the hearts of the people, and hybrid vehicle has become the research emphasis of domestic and international Ge great automobile vendor, and also brings some new problems in hybrid vehicle R&D process.Such as, when cold district uses, how fast and safely actv. improves the temperature of electrokinetic cell; How complete hybrid vehicle with start and stop function is; How to make full use of the compact front deck of hybrid vehicle and increase new parts etc.
Current most of configuration of automobiles mechanical water pump, it can meet most of working condition requirement.But, because the propulsion source of mechanical water pump is from the rotation of driving engine, therefore with the hybrid vehicle of start and stop function or other vehicles when entering start and stop function, mechanical water pump will shut down, and the program cannot meet drives a/c system traveling comfort requirement when people travels winter.
For solving the deficiency that such scheme exists, existing automobile vendor is by increasing an electronic water pump on the engine, and when solving driving engine start and stop, cooling water expansion tank does not continue the problem circulated.But owing to adds additional electronic water pump, also certainly will increase cooling water pipe, this can bring the front deck that hybrid vehicle is compact and arrange challenge; In addition, existing electronic water pump control system principle of work mostly is simple break-make and controls or only carry out PWM control according to the temperature of cooling water expansion tank, cannot meet the control overflow that hybrid vehicle is more complicated.
Summary of the invention
The invention provides a kind of hybrid vehicle water pump system and control method thereof, to realize front deck characteristics of compact layout, and meet the traveling comfort requirement of driver and crew when travelling winter.
To achieve these goals, the invention provides following technical scheme:
A kind of hybrid vehicle heat management system, comprising: driving engine, electrokinetic cell, magnetic clutch, radiator, water pump, engine control module, conduit assembly, described system also comprises: motor, arbor, water pump control modules, storage battery; Described water pump is connected with described motor with the axle center of described motor by the axle center of described water pump by described arbor, for realizing described water pump and the rotation of described motor in synchrony; Described water pump control modules is connected with described motor and described engine control module, changes between engine working mode and electrical machine working mode for water pump described in the power control that the power that exports according to described driving engine or described motor export; Described motor is connected with described storage battery by cable, and described storage battery is for storing the electric energy of described motor generation or providing electric energy to described motor.
Preferably, described conduit assembly comprises: the first conduit assembly, second conduit assembly, 3rd conduit assembly, 4th conduit assembly, 5th conduit assembly the 6th conduit assembly, one end of described first conduit assembly connects described radiator, the other end connects the water inlet end of described water pump, one end of described second conduit assembly connects the water side of described water pump, the other end is divided into described 3rd conduit assembly and described 4th conduit assembly, described 3rd conduit assembly, described 4th conduit assembly connects the thermal component water inlet end of described driving engine respectively, the thermal component water inlet end of described electrokinetic cell, the thermal component water side of described driving engine, the thermal component water side of described electrokinetic cell is respectively by described 5th conduit assembly, 6th conduit assembly is connected with described radiator.
Preferably, described system also comprises flow-controlling gate, described flow-controlling gate is arranged between described second conduit assembly and described 4th conduit assembly, for controlling to flow into the cooling water inflow of electrokinetic cell inside and controlling the break-make of described 4th conduit assembly pipeline.
Preferably, it is characterized in that, when normal working of engine, water pump described in driven by engine and described motor in synchrony rotate, and the electrical power storage produced by described motor is in described storage battery; When driving engine is in start and stop state, described storage battery provides electric energy to make described motor and described water pump synchronous axial system to described motor.
Preferably, when driving engine is in start and stop state, described water pump control modules controls described water pump by the dutycycle controlling the output of described motor and works in the motor operation mode.
Preferably, described electrical machine working mode comprises: the first electrical machine working mode, second electrical machine working mode, 3rd electrical machine working mode, wherein said first electrical machine working mode is that described water pump control modules controls the mode of operation of described water pump by the dutycycle controlling described motor output 90% ~ 100%, described second electrical machine working mode is that described water pump control modules controls the mode of operation of described water pump by the dutycycle controlling described motor output 60% ~ 90%, described 3rd electrical machine working mode is that described water pump control modules controls the mode of operation of described water pump by the dutycycle controlling described motor output 30% ~ 60%.
Preferably, described system also comprises magnetic clutch, and described magnetic clutch is connected with described water pump control modules, is connected with the power of described driving engine for controlling described water pump.
To achieve these goals, the present invention also provides following technical scheme:
A kind of hybrid vehicle heat management system control method, is characterized in that, comprise the steps:
Engine control module obtains vehicle condition information, and described vehicle condition information is sent to water pump control modules, described vehicle condition information comprises: engine speed R, engine temperature T1, electrokinetic cell highest temperature T2, electrokinetic cell mean temperature T3, air conditioning for automobiles mode of operation;
According to described engine speed R, described water pump control modules judges whether driving engine is in start and stop state: if the rotating speed of driving engine is as zero, driving engine is in start and stop state, otherwise driving engine is in running order;
When driving engine is in running order, water pump described in driven by engine and described motor in synchrony rotate, and the electrical power storage produced by described motor is in described storage battery;
When driving engine is in start and stop state, described water pump control modules controls described water pump according to described vehicle condition information by the dutycycle controlling the output of described motor and works in the motor operation mode.
Preferably, when driving engine is in running order, and during described engine temperature T1 >=45 DEG C, described water pump control modules controls magnetic clutch adhesive, to make water pump described in driven by engine and described motor in synchrony rotate, and the electrical power storage produced by described motor is in described storage battery.
Preferably, when driving engine is in start and stop state, described water pump control modules controls described water pump according to described vehicle condition information by the dutycycle controlling described motor and export and works in the motor operation mode and comprise:
When described engine temperature T1 >=50 DEG C or electrokinetic cell highest temperature T2≤5 DEG C or electrokinetic cell mean temperature T3≤5 DEG C or air conditioning for automobiles mode of operation are for heating state, described water pump control modules controls described water pump by the dutycycle controlling described motor and export 90% ~ 100% and works under the first electrical machine working mode;
When described engine temperature T1 >=45 DEG C or electrokinetic cell highest temperature T2≤15 DEG C or electrokinetic cell mean temperature T3≤10 DEG C or air conditioning for automobiles mode of operation are for heating state, described water pump control modules controls described water pump by the dutycycle controlling described motor and export 60% ~ 90% and works under the second electrical machine working mode;
When described engine temperature T1 >=40 DEG C or electrokinetic cell highest temperature T2≤30 DEG C or electrokinetic cell mean temperature T3≤25 DEG C or air conditioning for automobiles mode of operation are for heating state, described water pump control modules controls described water pump by the dutycycle controlling described motor and export 30% ~ 60% and works under the second electrical machine working mode;
When described engine temperature T1 < 40 DEG C and electrokinetic cell highest temperature T2>30 DEG C and electrokinetic cell mean temperature T3>25 DEG C and air conditioning for automobiles mode of operation be not for working, described water pump control modules controls described water air pump inoperative by controlling described motor.
Beneficial effect of the present invention is, the present invention, by providing a kind of hybrid vehicle heat management system, to realize front deck characteristics of compact layout, and improves the traveling comfort requirement of driver and crew when travelling winter.
Accompanying drawing explanation
Fig. 1 is a kind of hybrid vehicle heat management system block diagram of the present invention.
1, driving engine 2, electrokinetic cell 3, radiator 4, water pump 5, arbor 6, motor 7, water pump control modules 8, engine control module 9, storage battery 10, flow-controlling gate 11, first conduit assembly 12, second conduit assembly 13, the 3rd conduit assembly 14, the 4th conduit assembly 15, the 5th conduit assembly 16, the 6th conduit assembly
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
As shown in Figure 1, be a kind of hybrid vehicle heat management system block diagram of the present invention.The invention provides a kind of hybrid vehicle heat management system, comprise: driving engine, electrokinetic cell, magnetic clutch, radiator, water pump, engine control module, conduit assembly, described system also comprises: motor, arbor, water pump control modules, storage battery; Described water pump is connected with described motor with the axle center of described motor by the axle center of described water pump by described arbor, for realizing described water pump and the rotation of described motor in synchrony; Described water pump control modules is connected with described motor and described engine control module, changes between engine working mode and electrical machine working mode for water pump described in the power control that the power that exports according to described driving engine or described motor export; Described motor is connected with described storage battery by cable, and described storage battery is for storing the electric energy of described motor generation or providing electric energy to described motor.
Wherein, described conduit assembly comprises: the first conduit assembly, second conduit assembly, 3rd conduit assembly, 4th conduit assembly, 5th conduit assembly the 6th conduit assembly, one end of described first conduit assembly connects described radiator, the other end connects the water inlet end of described water pump, one end of described second conduit assembly connects the water side of described water pump, the other end is divided into described 3rd conduit assembly and described 4th conduit assembly, described 3rd conduit assembly, described 4th conduit assembly connects the thermal component water inlet end of described driving engine respectively, the thermal component water inlet end of described electrokinetic cell, the thermal component water side of described driving engine, the thermal component water side of described electrokinetic cell is respectively by described 5th conduit assembly, 6th conduit assembly is connected with described radiator.Substantially adopt the conduit assembly in system in technical scheme of the present invention, so not only reduced equipment cost, and decrease the difficult arrangement to the compact front deck of hybrid vehicle.
Described system of stating also comprises flow-controlling gate, and described flow-controlling gate is arranged between described second conduit assembly and described 4th conduit assembly, for controlling to flow into the cooling water inflow of electrokinetic cell inside and controlling the break-make of described 4th conduit assembly pipeline.The independence that can realize electrokinetic cell cooling system like this controls, and strengthens the simple operation of hybrid vehicle heat management system.
Described water pump is connected with described motor with the axle center of described motor by the axle center of described water pump by described arbor, for realizing described water pump and the rotation of described motor in synchrony, it is characterized in that, when normal working of engine, water pump described in driven by engine and described motor in synchrony rotate, and the electrical power storage produced by described motor is in described storage battery; When driving engine is in start and stop state, described storage battery provides electric energy to make described motor and described water pump synchronous axial system to described motor.
When normal working of engine, its partial power makes pump working by Belt Conveying to water pump, and the axle center of the axle center of water pump and motor is same arbor, therefore the running of water pump will cause synchronizing motors, electronic water pump operation process is equivalent to electrical generator, and its electric energy produced can be stored in car load storage battery.When driving engine is in start and stop state and quits work, because air-conditioning heating requires to need engine cooling water persistent loop, and water pump cannot rotate because engine power is lost, now motor can rely on the work about electric power of car load storage battery to drive pump working, realizes the continuation circulation of engine cooling water.
When driving engine is in start and stop state, described water pump control modules controls described water pump by the dutycycle controlling the output of described motor and works in the motor operation mode.Described electrical machine working mode comprises: the first electrical machine working mode, second electrical machine working mode, 3rd electrical machine working mode, described first electrical machine working mode is that described water pump control modules controls the mode of operation of described water pump by the dutycycle controlling described motor output 90% ~ 100%, described second electrical machine working mode is that described water pump control modules controls the mode of operation of described water pump by the dutycycle controlling described motor output 60% ~ 90%, described 3rd electrical machine working mode is that described water pump control modules controls the mode of operation of described water pump by the dutycycle controlling described motor output 30% ~ 60%.
Described system also comprises magnetic clutch, and described magnetic clutch is connected with described water pump control modules, is connected, to reach the effect of economize energy for controlling described water pump with the power of described driving engine.
Present invention also offers a kind of hybrid vehicle heat management system control method, comprise the steps:
Engine control module obtains vehicle condition information, and described vehicle condition information is sent to water pump control modules, described vehicle condition information comprises: engine speed R, engine temperature T1, electrokinetic cell highest temperature T2, electrokinetic cell mean temperature T3, air conditioning for automobiles mode of operation N;
According to described engine speed R, described water pump control modules judges whether driving engine is in start and stop state: if the rotating speed of driving engine is as zero, driving engine is in start and stop state, otherwise driving engine is in running order;
When driving engine is in running order, water pump described in driven by engine and described motor in synchrony rotate, and the electrical power storage produced by described motor is in described storage battery;
When driving engine is in start and stop state, described water pump control modules controls described water pump according to described vehicle condition information by the dutycycle controlling the output of described motor and works in the motor operation mode.
When driving engine is in running order, also comprise: when described engine temperature T1 >=45 DEG C, described water pump control modules controls magnetic clutch adhesive, and to make water pump described in driven by engine and described motor in synchrony rotate, and the electrical power storage produced by described motor is in described storage battery.
When driving engine is in start and stop state, described water pump control modules controls described water pump according to described vehicle condition information by the dutycycle controlling described motor and export and works in the motor operation mode and comprise:
When described engine temperature T1 >=50 DEG C or electrokinetic cell highest temperature T2≤5 DEG C or electrokinetic cell mean temperature T3≤5 DEG C or air conditioning for automobiles mode of operation are for heating state, described water pump control modules controls described water pump by the dutycycle controlling described motor and export 90% ~ 100% and works under the first electrical machine working mode;
When described engine temperature T1 >=45 DEG C or electrokinetic cell highest temperature T2≤15 DEG C or electrokinetic cell mean temperature T3≤10 DEG C or air conditioning for automobiles mode of operation are for heating state, described water pump control modules controls described water pump by the dutycycle controlling described motor and export 60% ~ 90% and works under the second electrical machine working mode;
When described engine temperature T1 >=40 DEG C or electrokinetic cell highest temperature T2≤30 DEG C or electrokinetic cell mean temperature T3≤25 DEG C or air conditioning for automobiles mode of operation are for heating state, described water pump control modules controls described water pump by the dutycycle controlling described motor and export 30% ~ 60% and works under the second electrical machine working mode;
When described engine temperature T1 < 40 DEG C and electrokinetic cell highest temperature T2>30 DEG C and electrokinetic cell mean temperature T3>25 DEG C and air conditioning for automobiles mode of operation be not for working, described water pump control modules controls described water air pump inoperative by controlling described motor.
Above-described specific embodiment; object of the present invention, technical scheme are further described; be understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a hybrid vehicle heat management system, comprise: driving engine, electrokinetic cell, magnetic clutch, radiator, water pump, engine control module, conduit assembly, it is characterized in that, described system also comprises: motor, arbor, water pump control modules, storage battery; Described water pump is connected with described motor with the axle center of described motor by the axle center of described water pump by described arbor, for realizing described water pump and the rotation of described motor in synchrony; Described water pump control modules is connected with described motor and described engine control module, changes between engine working mode and electrical machine working mode for water pump described in the power control that the power that exports according to described driving engine or described motor export; Described motor is connected with described storage battery by cable, and described storage battery is for storing the electric energy of described motor generation or providing electric energy to described motor.
2. system according to claim 1, it is characterized in that, described conduit assembly comprises: the first conduit assembly, second conduit assembly, 3rd conduit assembly, 4th conduit assembly, 5th conduit assembly the 6th conduit assembly, one end of described first conduit assembly connects described radiator, the other end connects the water inlet end of described water pump, one end of described second conduit assembly connects the water side of described water pump, the other end is divided into described 3rd conduit assembly and described 4th conduit assembly, described 3rd conduit assembly, described 4th conduit assembly connects the thermal component water inlet end of described driving engine respectively, the thermal component water inlet end of described electrokinetic cell, the thermal component water side of described driving engine, the thermal component water side of described electrokinetic cell is respectively by described 5th conduit assembly, 6th conduit assembly is connected with described radiator.
3. system according to claim 2, it is characterized in that, described system also comprises flow-controlling gate, described flow-controlling gate is arranged between described second conduit assembly and described 4th conduit assembly, for controlling to flow into the cooling water inflow of electrokinetic cell inside and controlling the break-make of described 4th conduit assembly pipeline.
4. system according to claim 1, is characterized in that, when normal working of engine, water pump described in driven by engine and described motor in synchrony rotate, and the electrical power storage produced by described motor is in described storage battery; When driving engine is in start and stop state, described storage battery provides electric energy to make described motor and described water pump synchronous axial system to described motor.
5. system according to claim 1, is characterized in that, when driving engine is in start and stop state, described water pump control modules controls described water pump by the dutycycle controlling described motor and export and works in the motor operation mode.
6. system according to claim 1 or 5, it is characterized in that, described electrical machine working mode comprises: the first electrical machine working mode, second electrical machine working mode, 3rd electrical machine working mode, wherein said first electrical machine working mode is that described water pump control modules controls the mode of operation of described water pump by the dutycycle controlling described motor output 90% ~ 100%, described second electrical machine working mode is that described water pump control modules controls the mode of operation of described water pump by the dutycycle controlling described motor output 60% ~ 90%, described 3rd electrical machine working mode is that described water pump control modules controls the mode of operation of described water pump by the dutycycle controlling described motor output 30% ~ 60%.
7. system according to claim 1, it is characterized in that, described system also comprises magnetic clutch, and described magnetic clutch is connected with described water pump control modules, is connected with the power of described driving engine for controlling described water pump.
8. a hybrid vehicle heat management system control method, is characterized in that, comprises the steps:
Engine control module obtains vehicle condition information, and described vehicle condition information is sent to water pump control modules, described vehicle condition information comprises: engine speed R, engine temperature T1, electrokinetic cell highest temperature T2, electrokinetic cell mean temperature T3, air conditioning for automobiles mode of operation;
According to described engine speed R, described water pump control modules judges whether driving engine is in start and stop state: if the rotating speed of driving engine is as zero, driving engine is in start and stop state, otherwise driving engine is in running order;
When driving engine is in running order, water pump described in driven by engine and described motor in synchrony rotate, and the electrical power storage produced by described motor is in described storage battery;
When driving engine is in start and stop state, described water pump control modules controls described water pump according to described vehicle condition information by the dutycycle controlling the output of described motor and works in the motor operation mode.
9. method according to claim 8, it is characterized in that, also comprise: when driving engine is in running order, and during described engine temperature T1 >=45 DEG C, described water pump control modules controls magnetic clutch adhesive, to make water pump described in driven by engine and described motor in synchrony rotate, and the electrical power storage produced by described motor is in described storage battery.
10. method according to claim 8, it is characterized in that, when driving engine is in start and stop state, described water pump control modules controls described water pump according to described vehicle condition information by the dutycycle controlling described motor and export and works in the motor operation mode and comprise:
When described engine temperature T1 >=50 DEG C or electrokinetic cell highest temperature T2≤5 DEG C or electrokinetic cell mean temperature T3≤5 DEG C or air conditioning for automobiles mode of operation are for heating state, described water pump control modules controls described water pump by the dutycycle controlling described motor and export 90% ~ 100% and works under the first electrical machine working mode;
When described engine temperature T1 >=45 DEG C or electrokinetic cell highest temperature T2≤15 DEG C or electrokinetic cell mean temperature T3≤10 DEG C or air conditioning for automobiles mode of operation are for heating state, described water pump control modules controls described water pump by the dutycycle controlling described motor and export 60% ~ 90% and works under the second electrical machine working mode;
When described engine temperature T1 >=40 DEG C or electrokinetic cell highest temperature T2≤30 DEG C or electrokinetic cell mean temperature T3≤25 DEG C or air conditioning for automobiles mode of operation are for heating state, described water pump control modules controls described water pump by the dutycycle controlling described motor and export 30% ~ 60% and works under the second electrical machine working mode;
When described engine temperature T1 < 40 DEG C and electrokinetic cell highest temperature T2>30 DEG C and electrokinetic cell mean temperature T3>25 DEG C and air conditioning for automobiles mode of operation be not for working, described water pump control modules controls described water air pump inoperative by controlling described motor.
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Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant before: Anhui Jianghuai Automotive Co., Ltd. |
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