CN106696686B - Electric car water circulation system and its control method, device and automobile - Google Patents
Electric car water circulation system and its control method, device and automobile Download PDFInfo
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- CN106696686B CN106696686B CN201510569794.8A CN201510569794A CN106696686B CN 106696686 B CN106696686 B CN 106696686B CN 201510569794 A CN201510569794 A CN 201510569794A CN 106696686 B CN106696686 B CN 106696686B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 214
- 238000000034 method Methods 0.000 title claims description 24
- 239000000498 cooling water Substances 0.000 claims description 32
- 230000005611 electricity Effects 0.000 claims description 9
- 108010001267 Protein Subunits Proteins 0.000 claims description 4
- 238000001816 cooling Methods 0.000 description 15
- 238000010586 diagram Methods 0.000 description 12
- 238000004590 computer program Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 5
- 239000012141 concentrate Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005183 dynamical system Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Abstract
The present invention provides a kind of electric car water circulation systems, including motor water-flow circuit, cool down to the motor in electric car；Power battery water-flow circuit cools down the power battery in electric car；Connecting line is set between motor water-flow circuit and power battery water-flow circuit, and motor water-flow circuit and power battery water-flow circuit establish connection when connection；First controllable switch components, are controlled by control unit, control connecting line connection or cut-off according to the temperature of power battery.Therefore electric car water circulation system of the present invention, in vehicle operation, when temperature of powered cell is too low, control unit controls the control connecting line connection of the first controllable switch components, and then establish the connection between motor water-flow circuit and power battery water-flow circuit, without using electronic heater, power battery can also effectively be heated in vehicle operation.
Description
Technical field
The present invention relates to electric vehicle engineering field, a kind of electric car water circulation system and its control are related in particular to
Method, apparatus and automobile.
Background technique
Electric car refers to using vehicle power supply as power, with motor driven wheels travel, meets road traffic, security legislation
The vehicle of requirements.Since effect on environment is smaller with respect to orthodox car, its prospects are considered optimistic wildly, common electric car
Type have pure electric automobile, hybrid vehicle, fuel cell car etc., no matter which kind of electric car, dynamical system is all
It include power battery and motor.
It is existing in order to promote performance of the power battery in low temperature because of the too low performance that will affect power battery of temperature
Heat temperature raising, but because electronic heater are carried out to power battery mainly by way of increasing electronic heater in technology
The power of itself is relatively high, may be only available for the power battery preheating in static charging process, and in vehicle operation, it is
The traveling of preferential support vehicles, electronic heater cisco unity malfunction can not effectively heat power battery.
Summary of the invention
For this purpose, technical problem to be solved by the present invention lies in provide a kind of electric car water circulation system and its controlling party
Method, device and automobile can effectively heat power battery in vehicle operation, promote power battery in low temperature
Performance.
In order to solve the above technical problems, technical scheme is as follows:
The present invention provides a kind of electric car water circulation systems, comprising:
Motor water-flow circuit cools down the motor in the electric car；
Power battery water-flow circuit cools down the power battery in the electric car；
Connecting line is set between the motor water-flow circuit and the power battery water-flow circuit, when connection
The motor water-flow circuit and the power battery water-flow circuit establish connection；
First controllable switch components, are controlled by control unit, control the connecting tube according to the temperature of the power battery
Road connection or cut-off.
Electric car water circulation system of the present invention, the connecting line include the first connecting tube and the second connection
Pipe；
When first connecting tube is connected to, the water outlet of the motor water-flow circuit is recycled back to the power electric water
The water inlet on road establishes connection；
When second connecting tube is connected to, the water inlet of the motor water-flow circuit is recycled back to the power electric water
The water outlet on road establishes connection.
Electric car water circulation system of the present invention, first controllable switch components control the connecting line and connect
While logical, control connects the intake-outlet connecting tube cut-off of the water outlet and water inlet of the motor water-flow circuit；It is described
While first controllable switch components control connecting line cut-off, the intake-outlet connecting tube conducting is controlled.
Electric car water circulation system of the present invention further includes the second controllable switch components and third controllable switch group
Part；
Second controllable switch components are controlled by described control unit, and the temperature controlled water according to the power battery is
The no motor radiating water tank flowed through in the motor water-flow circuit, and second controllable switch components control water is not passed through institute
While stating motor radiating water tank, controls the motor water circulation connecting with the inlet and outlet of the motor radiating water tank and connect
Adapter tube connection when the second controllable switch components control water flows through the motor radiating water tank, controls the motor water circulation
Connecting tube cut-off；
The third controllable switch components are controlled by described control unit, and the temperature controlled water according to the power battery is
The no power battery cooling water tank flowed through in the power battery water-flow circuit.
The present invention also provides a kind of control methods of above-mentioned electric car water circulation system, comprising:
Obtain the temperature of power battery；
Establish or disconnect according to the temperature motor water-flow circuit and the power battery water-flow circuit it
Between connection.
The control method of electric car water circulation system of the present invention, it is described to establish or disconnect according to the temperature
Connection between the motor water-flow circuit and the power battery water-flow circuit includes:
If the temperature is higher than low temperature calibration value, further judge whether the temperature is higher than High temperature calibration value；
If so, disconnecting the connection between the motor water-flow circuit and the power battery water-flow circuit；
If it is not, then disconnecting the connection between the motor water-flow circuit and the power battery water-flow circuit；
If the temperature is less than or equal to the low temperature calibration value, the motor water-flow circuit and the power are established
Connection between battery water-flow circuit, until the temperature is higher than time High temperature calibration value；
If disconnecting the motor water-flow circuit and the power electric after the temperature is higher than the secondary High temperature calibration value
Connection between water circulation loop.
The control method of electric car water circulation system of the present invention, if the temperature is higher than High temperature calibration
In the step of being worth, then disconnecting the connection between the motor water-flow circuit and the power battery water-flow circuit, make simultaneously
Water in the power battery water-flow circuit flows through the power battery cooling water tank；
If the temperature is higher than low temperature calibration value but is lower than High temperature calibration value, the motor water-flow circuit is disconnected
In the step of connection between the power battery water-flow circuit, while making the water in the power battery water-flow circuit
It is not passed through the power battery cooling water tank；
If after the temperature is higher than the secondary High temperature calibration value, disconnecting the motor water-flow circuit and described dynamic
In the step of connection between power battery water-flow circuit, while the water in the power battery water-flow circuit being made to be not passed through institute
Power battery cooling water tank is stated, until the temperature is higher than the water flow made again in power battery water-flow circuit after High temperature calibration value
Through the power battery cooling water tank.
The control method of electric car water circulation system of the present invention, if the temperature is less than or equal to described
Low temperature calibration value then establishes the connection between the motor water-flow circuit and the power battery water-flow circuit, until institute
It states in the step of temperature is higher than secondary High temperature calibration value, while so that the water in the motor water-flow circuit is flowed through the motor water and following
Ring connecting tube and be not passed through the motor radiating water tank, so that the water in the power battery water-flow circuit is not passed through the power
Battery cooling water tank.
The present invention also provides a kind of control devices of above-mentioned electric car water circulation system, comprising:
Temperature acquiring unit, for obtaining the temperature of power battery；
On-off control unit is coupled with the temperature acquiring unit, establishes or disconnect the motor according to the temperature
Connection between water-flow circuit and the power battery water-flow circuit.
The present invention also provides a kind of automobile, including above-mentioned electric car water circulation system, the electric car water circulation
Above-mentioned control device built in system.
The above technical solution of the present invention has the following advantages over the prior art:
The present invention provides a kind of electric car water circulation systems, including motor water-flow circuit, in electric car
Motor is cooled down；Power battery water-flow circuit cools down the power battery in electric car；Connecting line, setting
Between motor water-flow circuit and power battery water-flow circuit, motor water-flow circuit and power electric water circulation when connection
Connection is established in circuit；First controllable switch components, are controlled by control unit, are controlled connecting line according to the temperature of power battery and are connected
Logical or cut-off.Therefore electric car water circulation system of the present invention, in vehicle operation, when temperature of powered cell mistake
When low, control unit controls the control connecting line connection of the first controllable switch components, and then establishes motor water-flow circuit and move
Connection between power battery water-flow circuit can be by motor water because motor temperature in vehicle operation is very high
Heat heat in circulation loop, which is transferred in power battery water-flow circuit, to heat to power battery, is heated without using electronics
Device can also effectively heat power battery in vehicle operation.
Detailed description of the invention
In order to make the content of the present invention more clearly understood, it below according to specific embodiments of the present invention and combines
Attached drawing, the present invention is described in further detail, wherein
Fig. 1 is the structural block diagram of electric car water circulation system of the present invention；
Fig. 2 is the structural schematic diagram of a specific implementation case of electric car water circulation system of the present invention；
Fig. 3 is that motor water-flow circuit and power electric water circulation are established in electric car water circulation system of the present invention
Schematic diagram when connection；
Fig. 4 is motor water-flow circuit and power battery water-flow circuit in electric car water circulation system of the present invention
Schematic diagram when respective independent operating cooling；
Fig. 5 is that motor water-flow circuit and power electric water circulation are disconnected in electric car water circulation system of the present invention
The connection in circuit, and power battery water-flow circuit without cooling when schematic diagram；
Fig. 6 is the flow chart of the control method of above-mentioned electric car water circulation system of the present invention；
Fig. 7 is the stream of a specific implementation case of the control method of above-mentioned electric car water circulation system of the present invention
Cheng Tu；
Fig. 8 is the structural schematic diagram of the control device of above-mentioned electric car water circulation system of the present invention.
Appended drawing reference indicates in figure are as follows: 1- motor water-flow circuit, 2- power battery water-flow circuit, and 3- connecting line,
The first controllable switch components of 4-, 5- control unit, the second controllable switch components of 6-, 7- third controllable switch components, 11- motor dissipate
Boiler, 12- intake-outlet connecting tube, 13- motor water are connected by circulation pipe, 21- power battery cooling water tank, the connection of 31- first
Pipe, 32 second connecting tubes, 8- temperature acquiring unit, 9- on-off control unit, 91- judgment sub-unit, 92- disconnect subelement, 93-
Subelement, the auxiliary control subelement of 94- first, the auxiliary control subelement of 95- second are established in connection.
Specific embodiment
Embodiment 1
A kind of electric car water circulation system is present embodiments provided, as shown in Figure 1, comprising:
Motor water-flow circuit 1 cools down the motor in the electric car.
Power battery water-flow circuit 2 cools down the power battery in the electric car.
Connecting line 3 is set between the motor water-flow circuit 1 and the power battery water-flow circuit 2, connection
Shi Suoshu motor water-flow circuit 1 and the power battery water-flow circuit 2 establish connection.
First controllable switch components 4 are controlled by control unit 5, control the connection according to the temperature of the power battery
The connection of pipeline 3 or cut-off.
Specifically, motor water-flow circuit 1 can be using the electromotor cooling system of electric car in the prior art, power electric
Water circulation loop 2 can select electricity using the power battery cooling system of electric car in the prior art, control unit 5
Entire car controller in electrical automobile can reduce the cost of transformation.Because of electromotor cooling system in the prior art and power electric
Pond cooling system is all independently operated, therefore can be in motor water-flow circuit 1 (electromotor cooling system) and power electric water
Connecting line 3 is established between circulation loop 2 (power battery cooling system), when the temperature of power battery is too low, first is controllable
Switch block 4 is controlled by control unit 5, and control connecting line 3 is connected to, so as to establish electrizer water-flow circuit 1 and move
Connection between power battery water-flow circuit 2.It, can be by motor water because motor temperature in vehicle operation is very high
Heat heat in circulation loop 1, which is transferred in power battery water-flow circuit 2, to give power battery heating, without using electronics plus
Hot device can also effectively heat power battery in vehicle operation.
Preferably, as shown in Fig. 2, the connecting line 3 may include the first connecting tube 31 and the second connecting tube 32；It is described
When first connecting tube 31 is connected to, the water inlet of the water outlet of the motor water-flow circuit 1 and the power battery water-flow circuit 2
Mouth establishes connection；When second connecting tube 32 is connected to, the water inlet of the motor water-flow circuit 1 and the power electric water
The water outlet of circulation loop 2 establishes connection.
While first controllable switch components 4 control the connecting line 3 connection, control connects the motor water and follows
The water outlet of loop back path 1 and the intake-outlet connecting tube 12 of water inlet are ended；First controllable switch components 4 control the company
While taking over the cut-off of road 3, controls the intake-outlet connecting tube 12 and be connected.
Specifically, the first controllable switch components 4 may include two three-way cocks, such as three-way magnetic valve, at this time can be with
By in the first controllable switch components 4 a three-way cock and the first connecting tube 31 be connected in motor water-flow circuit 1
Between water outlet and the water inlet of power battery water-flow circuit 2, another three-way cock is connect with the second connecting tube 32 and is set
It is placed between the water inlet of motor water-flow circuit 1 and the water outlet of power battery water-flow circuit 2, intake-outlet connecting tube 12
It is connect with the remaining port of the two three-way cocks.Because three-way cock includes three ports, and any one port shutdown
When, other two port is opened, therefore according to the characteristic of three-way cock, such as when temperature of powered cell is too low, needs to establish electricity
When connection between machine water-flow circuit 1 and power battery water-flow circuit 2, two three-way cocks and intake-outlet need to be only controlled
The port shutdown that connecting tube 12 connects, intake-outlet connecting tube 12 is ended at this time；One three-way cock connection motor water follows
The port of the first connecting tube 31 of port and connection of the water outlet of loop back path 1 is opened, and the connection of the first connecting tube 31 makes motor water
It is connected between the water inlet of circulation loop 1 and the water outlet of power battery water-flow circuit 2；Another three-way cock connects motor
The port of the second connecting tube 32 of port and connection of the water inlet of water-flow circuit 1 is opened, and the connection of the second connecting tube 32 makes electricity
It is connected between the water inlet of machine water-flow circuit 1 and the water outlet of power battery water-flow circuit 2；To establish motor water
Connection between circulation loop 1 and power battery water-flow circuit, can be by the high-temperature water in motor water-flow circuit 1 come to dynamic
Power battery heat temperature raising, it is very convenient and environmentally friendly.Optionally, the first controllable switch components 4, which can also be selected, is installed on accordingly
Above-mentioned function is realized in the combinations of the multiple single-way switch or single-way switch and two-way switch of position, can also play good control
Effect processed.
Preferably, electric car water circulation system described in the present embodiment can also include 6 He of the second controllable switch components
Third controllable switch components 7.
Second controllable switch components 6 are controlled by described control unit 5, according to the temperature controlled water of the power battery
Whether motor radiating water tank 11 in the motor water-flow circuit 1 is flowed through, and second controllable switch components 6 control water is not
While flowing through motor radiating water tank 11, the electricity connecting with the inlet and outlet of the motor radiating water tank 11 is controlled
Machine water is connected by circulation the connection of pipe 13, when the control of the second controllable switch components 6 water flows through the motor radiating water tank 11, control
The motor water is connected by circulation the cut-off of pipe 13.
The third controllable switch components 7 are controlled by described control unit 5, according to the temperature controlled water of the power battery
Whether power battery cooling water tank 21 in the power battery water-flow circuit 2 is flowed through.
Specifically, the second controllable switch components 6 and third controllable switch components 7 may each comprise two three-way cocks, than
Such as three-way magnetic valve, two three-way cocks in the second controllable switch components 6 can be connected by circulation pipe with motor water respectively at this time
13 both ends connect, and a port in two ports of residue of one of three-way cock passes through connecting tube and motor radiating water
The water outlet of case 11 connects, another port is connect by connecting tube with the water outlet of motor water-flow circuit 1, another threeway
A port in two ports of residue of switch is connect by connecting tube with the water inlet of motor radiating water tank 11, another end
Mouth is connect by connecting tube with the water inlet of motor water-flow circuit 1；A three-way cock in third controllable switch components 7
A port is connect by connecting tube with the water inlet of power battery cooling water tank 21, another port and the first connecting tube 31 connect
It connecing, a port of another three-way cock is connect by connecting tube with the water outlet of power battery cooling water tank 21, another
Port is connect with the second connecting tube 32, and the remaining port of two in third controllable switch components 7 three-way cock passes through power
Connecting tube connection in battery water-flow circuit 2.Because three-way cock includes three ports, and any one port shutdown
When, other two port is opened, therefore according to the characteristic of three-way cock, for example when temperature of powered cell is too low, is needed at this time
The connection between motor water-flow circuit 1 and power battery water-flow circuit 2 is established, is added to concentrate to power battery
Heat needs that recirculated water is made to be not passed through power battery cooling water tank 21, needs to close two in third controllable switch components 7 at this time
Connect respectively with the water inlet of power battery cooling water tank 21 and with the water outlet of power battery cooling water tank 21 in three-way cock
The port connect, such recirculated water would not flow through power battery cooling water tank 21；Power battery is heated in order to concentrate simultaneously,
It is also required to that recirculated water is made to be not passed through motor radiating water tank 11, but flows through motor water and be connected by circulation pipe 13, need to close at this time
Two three-way cocks in two controllable switch components 6 respectively with the water inlet of motor radiating water tank 11 and with motor radiating water tank
The port of 11 water outlet connection, such water would not flow through motor radiating water tank, at this point, motor water-flow circuit 1 and dynamic
Power battery water-flow circuit 2 establishes the circulation of the water after connection as shown in figure 3, the high temperature circulation water in motor water-flow circuit 1 passes through
The water outlet of motor water-flow circuit 1, two ports of a three-way cock in the first controllable switch components 4, the first connection
In two ports of a three-way cock in pipe 31, third controllable switch components 7 and power battery water-flow circuit 2
Connecting tube near power battery flows through power battery and nearby heats to power battery, then through in third controllable switch components 7
Another three-way cock in two ports of another three-way cock, the second connecting tube 32 and the first controllable switch components 4
Two ports return to the water inlet of motor water-flow circuit 1, be not passed through motor radiating water tank 11, but recycle and connect through motor water
Adapter tube 13 forms circulation loop, constantly gives power battery circulating-heating, thermal losses is minimized, until power battery liter
Temperature is increased power without additional, the heating of power battery can be realized using motor cooling water, reduce to the temperature worked normally
Energy consumption；When temperature of powered cell is increased to normal working temperature, as shown in figure 5, motor water-flow circuit 1 and power battery
Connection between water-flow circuit 2 disconnects, and power battery water-flow circuit 1 does not work at this time, and only motor water-flow circuit 1 is only
It is cooled down to motor, two three-way cocks in the second controllable switch components 6 recycle with motor water connect respectively at this time
The port shutdown of the both ends connection of adapter tube 13, motor water are connected by circulation the cut-off of pipe 13, and water flows through motor radiating water tank 11 to motor
It is cooled down；If another temperature of powered cell is excessively high when needing cooling, as shown in figure 4, needing to disconnect 1 He of motor water-flow circuit
Connection between power battery water-flow circuit 2, while the water in power battery water-flow circuit being made to flow through power battery heat dissipation
Water tank 21 cools down power battery, need to only close at this time two three-way cocks in third controllable switch components 7 respectively with
The port of first connecting tube 31 connection and the port being connect with the second connecting tube 32, such power battery water-flow circuit
Water inlet through power battery cooling water tank of water in 2, water outlet, two three-way cocks in third controllable switch components 7
It is only that connecting tube in other two port and power battery water-flow circuit 2 just establishes power battery water-flow circuit 2
Vertical water circulation, cools down power battery, control method flexible and convenient.Control method flexible and convenient.Optionally,
Second controllable switch components 6 and third controllable switch components 7 can also select the multiple single-way switch for being installed on corresponding position or
Above-mentioned function is realized in the combination of person's single-way switch and two-way switch, can also play good control effect.
In conclusion electric car water circulation system described in the present embodiment, when the cooling drop of the excessively high needs of temperature of powered cell
Respectively independent water circulation cools down for Wen Shi, motor water-flow circuit 1 and power battery water-flow circuit 2, it is ensured that cooling drop
The effect of temperature；When temperature of powered cell is in normal working temperature, power battery is handled without cooling, and motor water recycles at this time
Connection between circuit 1 and power battery water-flow circuit 2 is also to disconnect, and power battery water-flow circuit 2 is also off
, water is not passed through power battery cooling water tank 21, and the only water in motor water-flow circuit 1 flows through 11 pairs of electricity of motor radiating water tank
Machine cools down；When temperature of powered cell is too low, the company of motor water-flow circuit 1 and power battery water-flow circuit 2 is established
It connects, concentrates and heat temperature raising is carried out to power battery.Therefore water circulation control system described in the present embodiment can be adapted for vehicle
The various states of operation are in power battery under normal operating temperature, extend its service life, be conducive to vehicle
Stable operation.
Preferably, water pump can also be increased in motor water-flow circuit 1 and power battery water-flow circuit 2, to accelerate water
Circulation promotes cooling or heating speed.
Electric car water circulation system described in the present embodiment, in vehicle operation, when temperature of powered cell is too low,
It can be connected to connecting line by control unit, and then established between motor water-flow circuit and power battery water-flow circuit
Connection, because motor temperature in vehicle operation is very high, the heat heat in motor water-flow circuit can be transmitted
Come to heat to power battery into power battery water-flow circuit, without using electronic heater, in vehicle operation
Power battery can effectively be heated.
Embodiment 2
The control method for present embodiments providing a kind of electric car water circulation system described in embodiment 1, such as Fig. 6 institute
Show, comprising:
S1. the temperature of power battery is obtained.Specifically, the temperature of power battery can be obtained from entire car controller,
It can directly be obtained from the temperature sensor near power battery, mode is versatile and flexible.
S2. the motor water-flow circuit and the power battery water-flow circuit are established or disconnected according to the temperature
Between connection.Can effectively control electric car water circulation system described in embodiment 1 according to the temperature of power battery come pair
Power battery is effectively heated up or is cooled down in time to motor or power battery, it is ensured that the stable operation of vehicle.
Preferably, as shown in fig. 7, the step S2 may include:
If S21. the temperature is higher than low temperature calibration value, further judge whether the temperature is higher than High temperature calibration value.
S22. if so, disconnecting the connection between the motor water-flow circuit and the power battery water-flow circuit；
Preferably, the water in the power battery water-flow circuit is made to flow through the power battery cooling water tank, energy simultaneously in step S22
It is enough that power battery is cooled down in time, the excessively high performance for influencing power battery of temperature is prevented, the use of power battery is conducive to extend
Service life.
S23. if it is not, then disconnecting the connection between the motor water-flow circuit and the power battery water-flow circuit；
Preferably, the water in the power battery water-flow circuit is made to be not passed through the power battery cooling water tank simultaneously in step S23.
Because the temperature of power battery is higher than low temperature calibration value and is now in normally lower than High temperature calibration value namely power battery at this time
Operating temperature is able to maintain that power battery works under normal temperature, be conducive to vehicle stablizes fortune without cooling down to it
Row.
If S24. the temperature is less than or equal to the low temperature calibration value, the motor water-flow circuit and described is established
Connection between power battery water-flow circuit, until the temperature is higher than time High temperature calibration value；Preferably, same in step S24
When make the water in the motor water-flow circuit flow through the motor water to be connected by circulation pipe and be not passed through the motor radiating water tank,
The water in the power battery water-flow circuit is set to be not passed through the power battery cooling water tank, because of temperature of powered cell at this time
It is too low, by the above-mentioned means, can concentrate strength on being heated to power battery, reduce all unnecessary thermal losses, energy
Enough power battery is made to be warming up to normal working temperature as early as possible, it is ensured that it possesses good charge-discharge performance；Although motor water simultaneously
Water in circulation loop is not passed through motor radiating water tank, but because water has flowed into power battery water-flow circuit, plays electricity
Machine cooling water tank answers role, can also prevent excessively high its performance of influence of motor temperature.
If after S25. the temperature is higher than the secondary High temperature calibration value, disconnecting the motor water-flow circuit and described dynamic
Connection between power battery water-flow circuit.Preferably, make the water in the power battery water-flow circuit in step S25 simultaneously
It is not passed through the power battery cooling water tank, until the temperature makes power battery water-flow circuit after being higher than High temperature calibration value again
In water flow through the power battery cooling water tank.Because power battery is under normal working temperature at this time, without cooling drop
Temperature is able to maintain that power battery works under normal temperature, is conducive to the stable operation of vehicle.
The control method of electric car water circulation system described in the present embodiment works as power electric in vehicle operation
When pond temperature is too low, the connection between motor water-flow circuit and power battery water-flow circuit can establish, because motor exists
Temperature is very high in vehicle operation, therefore the heat heat in motor water-flow circuit can be transferred to power electric water circulation
Come in circuit give power battery heating, without using electronic heater, in vehicle operation can also to power battery into
Row effectively heating.
Embodiment 3
The control device for present embodiments providing a kind of electric car water circulation system described in embodiment 1, such as Fig. 8 institute
Show, comprising:
Temperature acquiring unit 8, for obtaining the temperature of power battery.
On-off control unit 9 is coupled with the temperature acquiring unit 8, establishes or disconnect the electricity according to the temperature
Connection between machine water-flow circuit and the power battery water-flow circuit.
Preferably, the on-off control unit 9 may include:
Judgment sub-unit 91 is coupled with the temperature acquiring unit 8, is used for the temperature with low temperature calibration value, high temperature
Calibration value and time High temperature calibration value compare, and when the temperature is higher than low temperature calibration value, further judge the temperature
Whether High temperature calibration value is higher than.
Subelement 92 is disconnected, is coupled with the judgment sub-unit 91, for breaking when the temperature is higher than High temperature calibration value
Open the connection between the motor water-flow circuit and the power battery water-flow circuit.
The disconnection subelement 92 is also used to be higher than low temperature calibration value but less than or equal to High temperature calibration value when the temperature
When, disconnect the connection between the motor water-flow circuit and the power battery water-flow circuit.
Subelement 93 is established in connection, is coupled with the judgment sub-unit 91, for when the temperature is less than or equal to described
When low temperature calibration value, the connection between the motor water-flow circuit and the power battery water-flow circuit is established, until institute
It states temperature and is higher than time High temperature calibration value.
The disconnection subelement 92 is also used to disconnect the motor water after temperature is higher than the secondary High temperature calibration value
Connection between circulation loop and the power battery water-flow circuit.
Preferably, the on-off control unit 9 can also include that the first auxiliary controls subelement 94, single with judgement
Member 91 couples, for making the water in the power battery water-flow circuit flow through institute when the temperature is higher than High temperature calibration value
Power battery cooling water tank is stated, when the temperature is higher than low temperature calibration value but is higher than institute lower than High temperature calibration value or the temperature
When stating time High temperature calibration value but being lower than the High temperature calibration value, it is not passed through the water in the power battery water-flow circuit described
Power battery cooling water tank.
Preferably, the on-off control unit 9 can also include that the second auxiliary controls subelement 95, single with judgement
Member 91 couples, for being less than or equal to the low temperature calibration value when the temperature, when, make the water in the motor water-flow circuit
It flows through the motor water to be connected by circulation pipe and be not passed through the motor radiating water tank, make in the power battery water-flow circuit
Water is not passed through the power battery cooling water tank, until the temperature is higher than time High temperature calibration value, when the temperature is higher than described
When secondary High temperature calibration value, the water in the motor water-flow circuit is made to flow through the motor radiating water tank and be not passed through the motor
Water is connected by circulation pipe.
The control device of electric car water circulation system described in the present embodiment works as power electric in vehicle operation
When pond temperature is too low, it can be established between motor water-flow circuit and power battery water-flow circuit by on-off control unit 6
Connection heat heat in motor water-flow circuit can be passed because motor temperature in vehicle operation is very high
It is handed in power battery water-flow circuit and to heat to power battery, without using electronic heater, in vehicle operation
Power battery can also effectively be heated.
Embodiment 4
Present embodiments provide a kind of automobile, including electric car water circulation system described in embodiment 1.Preferably, institute
Control device described in embodiment 3 built in electric car water circulation system is stated, to the water in the electric car water circulation system
Flow direction controlled.
Automobile described in the present embodiment, in vehicle operation, when temperature of powered cell is too low, electric car water is followed
Loop system can establish the connection between motor water-flow circuit and power battery water-flow circuit, because motor is run in vehicle
Temperature is very high in the process, therefore the heat heat in motor water-flow circuit can be transferred to power battery water-flow circuit
It is heated to power battery, without using electronic heater, power battery can also be carried out effectively adding in vehicle operation
Heat, it is ensured that the steady safe operation of vehicle.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Claims (8)
1. a kind of electric car water circulation system characterized by comprising
Motor water-flow circuit (1), cools down the motor in the electric car；
Power battery water-flow circuit (2), cools down the power battery in the electric car；
Connecting line (3) is set between the motor water-flow circuit (1) and the power battery water-flow circuit (2), even
The motor water-flow circuit (1) and the power battery water-flow circuit (2) establish connection when logical；
First controllable switch components (4) are controlled by control unit (5), control the connection according to the temperature of the power battery
Pipeline (3) connection or cut-off；
Second controllable switch components (6), are controlled by described control unit (5), and the temperature controlled water according to the power battery is
The no motor radiating water tank (11) flowed through in the motor water-flow circuit (1), and second controllable switch components (6) control
While water is not passed through motor radiating water tank (11), the inlet and outlet of control and the motor radiating water tank (11)
The motor water of connection is connected by circulation pipe (13) connection, and the second controllable switch components (6) control water flows through the motor radiating
When water tank (11), controls the motor water and be connected by circulation pipe (13) cut-off；
Third controllable switch components (7), are controlled by described control unit (5), and the temperature controlled water according to the power battery is
The no power battery cooling water tank (21) flowed through in the power battery water-flow circuit (2).
2. electric car water circulation system according to claim 1, which is characterized in that the connecting line (3) includes the
One connecting tube (31) and the second connecting tube (32)；
When first connecting tube (31) is connected to, water outlet and the power electric water of the motor water-flow circuit (1) are followed
The water inlet of loop back path (2) establishes connection；
When second connecting tube (32) is connected to, water inlet and the power electric water of the motor water-flow circuit (1) are followed
The water outlet of loop back path (2) establishes connection.
3. electric car water circulation system according to claim 1 or 2, which is characterized in that the first controllable switch group
While part (4) controls the connecting line (3) connection, control connect the motor water-flow circuit (1) water outlet and into
The intake-outlet connecting tube (12) at the mouth of a river is ended；First controllable switch components (4) control connecting line (3) cut-off
Meanwhile controlling intake-outlet connecting tube (12) conducting.
4. a kind of control method of the described in any item electric car water circulation systems of claim 1-3, which is characterized in that packet
It includes:
Obtain the temperature of power battery；
It is established or is disconnected between the motor water-flow circuit and the power battery water-flow circuit according to the temperature
Connection；It is described establish or disconnect according to the temperature motor water-flow circuit and the power battery water-flow circuit it
Between connection include:
If the temperature is higher than low temperature calibration value, further judge whether the temperature is higher than High temperature calibration value；
If so, disconnecting the connection between the motor water-flow circuit and the power battery water-flow circuit；
If it is not, then disconnecting the connection between the motor water-flow circuit and the power battery water-flow circuit；
If the temperature is less than or equal to the low temperature calibration value, the motor water-flow circuit and the power battery are established
Connection between water-flow circuit, until the temperature is higher than time High temperature calibration value；
If disconnecting the motor water-flow circuit and the power electric water after the temperature is higher than the secondary High temperature calibration value
Connection between circulation loop.
5. the control method of electric car water circulation system according to claim 4, which is characterized in that if the temperature is high
In High temperature calibration value, then the step of disconnecting the connection between the motor water-flow circuit and the power battery water-flow circuit
In, while the water in the power battery water-flow circuit being made to flow through the power battery cooling water tank；
If the temperature is higher than low temperature calibration value but is lower than High temperature calibration value, the motor water-flow circuit and described dynamic is disconnected
In the step of connection between power battery water-flow circuit, while the water in the power battery water-flow circuit being made to be not passed through institute
State power battery cooling water tank；
If disconnecting the motor water-flow circuit and the power electric after the temperature is higher than the secondary High temperature calibration value
In the step of connection between water circulation loop, while it is described dynamic to be not passed through the water in the power battery water-flow circuit
Power battery cooling water tank, until the temperature makes the water in power battery water-flow circuit flow through institute again after being higher than High temperature calibration value
State power battery cooling water tank.
6. the control method of electric car water circulation system according to claim 5, which is characterized in that if the temperature is low
In or equal to the low temperature calibration value, then establish between the motor water-flow circuit and the power battery water-flow circuit
Connection, until in the step of temperature is higher than secondary High temperature calibration value, while flow through the water in the motor water-flow circuit
The motor water is connected by circulation pipe and is not passed through the motor radiating water tank, makes water in the power battery water-flow circuit not
Flow through the power battery cooling water tank.
7. a kind of control device of the described in any item electric car water circulation systems of claim 1-3, which is characterized in that packet
It includes:
Temperature acquiring unit (8), for obtaining the temperature of power battery；
On-off control unit (9) is coupled with the temperature acquiring unit (8), establishes or disconnect the electricity according to the temperature
Connection between machine water-flow circuit and the power battery water-flow circuit；The on-off control unit further include:
Judgment sub-unit, with the temperature acquiring unit couple, for by the temperature with low temperature calibration value, High temperature calibration value and
Secondary High temperature calibration value compares, and when the temperature is higher than low temperature calibration value, further judges whether the temperature is higher than
High temperature calibration value；
Subelement is disconnected, is coupled with the judgment sub-unit, for disconnecting the electricity when the temperature is higher than High temperature calibration value
Connection between machine water-flow circuit and the power battery water-flow circuit；
The disconnection subelement is also used to disconnect when the temperature is higher than low temperature calibration value but is less than or equal to High temperature calibration value
Connection between the motor water-flow circuit and the power battery water-flow circuit；
Subelement is established in connection, is coupled with the judgment sub-unit, for demarcating when the temperature less than or equal to the low temperature
When value, the connection between the motor water-flow circuit and the power battery water-flow circuit is established, until the temperature is high
In secondary High temperature calibration value；
The disconnection subelement is also used to disconnect the motor water after temperature is higher than the secondary High temperature calibration value and be recycled back to
Connection between road and the power battery water-flow circuit.
8. a kind of automobile, which is characterized in that described including the described in any item electric car water circulation systems of claim 1-3
Control device as claimed in claim 7 built in electric car water circulation system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510569794.8A CN106696686B (en) | 2015-09-09 | 2015-09-09 | Electric car water circulation system and its control method, device and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510569794.8A CN106696686B (en) | 2015-09-09 | 2015-09-09 | Electric car water circulation system and its control method, device and automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106696686A CN106696686A (en) | 2017-05-24 |
| CN106696686B true CN106696686B (en) | 2019-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510569794.8A Active CN106696686B (en) | 2015-09-09 | 2015-09-09 | Electric car water circulation system and its control method, device and automobile |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111605439B (en) * | 2020-06-08 | 2021-08-27 | 安徽江淮汽车集团股份有限公司 | Motor auxiliary heating control method, device, equipment and storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008290636A (en) * | 2007-05-26 | 2008-12-04 | Sanyo Electric Co Ltd | Hybrid car |
| CN101700738A (en) * | 2009-11-13 | 2010-05-05 | 北汽福田汽车股份有限公司 | Cooling system for electric vehicle |
| CN102689586A (en) * | 2012-05-31 | 2012-09-26 | 北京汽车新能源汽车有限公司 | Integral temperature control system for electric automobile |
-
2015
- 2015-09-09 CN CN201510569794.8A patent/CN106696686B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008290636A (en) * | 2007-05-26 | 2008-12-04 | Sanyo Electric Co Ltd | Hybrid car |
| CN101700738A (en) * | 2009-11-13 | 2010-05-05 | 北汽福田汽车股份有限公司 | Cooling system for electric vehicle |
| CN102689586A (en) * | 2012-05-31 | 2012-09-26 | 北京汽车新能源汽车有限公司 | Integral temperature control system for electric automobile |
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|---|---|
| CN106696686A (en) | 2017-05-24 |
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