CN208702515U - Engine thermal management system and charging vehicle including it - Google Patents
Engine thermal management system and charging vehicle including it Download PDFInfo
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- CN208702515U CN208702515U CN201821431583.3U CN201821431583U CN208702515U CN 208702515 U CN208702515 U CN 208702515U CN 201821431583 U CN201821431583 U CN 201821431583U CN 208702515 U CN208702515 U CN 208702515U
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Abstract
The utility model relates to a kind of engine thermal management system and including its charging vehicle, the engine thermal management system includes cooling circuit, the cooling circuit is used for when engine temperature is higher than the first preset temperature, the cooling engine, the cooling circuit includes the first cooling system and the second cooling system, in the second cooling system and the first cooling system access in series or in parallel cooling circuit.Engine thermal management system described in the utility model is able to satisfy the charge requirement under the various operating conditions of charging vehicle, ensure that charging vehicle is safe and efficient, economically runs.
Description
Technical field
The utility model relates to engine thermal administrative skill field more particularly to a kind of engine thermal management system and including
Its charging vehicle.
Background technique
With the rapid development of electric vehicles, charge requirement is growing day by day, to meet the diversified charge requirement of client, moves
Dynamic formula charging vehicle (hereinafter referred to as " charging vehicle ") comes into being, and the charging vehicle of " power generation-charging " mode is in the majority.Charging vehicle can be based on
Rear-guard light commercial vehicle converts, and generallys use and installs a whole set of diesel generating set for interior to realize power generation.But by
It is all smaller in the chassis of vehicle, the space in compartment and vehicle load-carrying, therefore it is unable to installation volume and the biggish generator of weight, so
Generated output is generally all smaller, far from meet electric car charging the needs of.Since engine exports biggish power,
It can be generated electricity using the engine of former vehicle come driven generator.
But since the work operating condition of the engine after repacking, operating condition are very big compared to all having occurred before repacking
Change, causes the demand of engine opposite heat tube reason system that very big change also has occurred, such as reequip the high-power operation of front engine
When, vehicle is to provide a large amount of heat dissipation air quantity in the process of running in the state run at high speed for engine, but repack into
It is power generation in parking after charging vehicle, the air quantity etc. that largely radiates as caused by high vehicle speeds can not be provided.Therefore vehicle is former
Some engine thermal management systems by be no longer able to satisfy repacking after charging vehicle temperature requirements, can not will start in power generation in parking
Machine and coolant temperature control may cause engine drop volume work in reasonable range, or generate excess temperature alarm, completely
It can not work, in the long-term heat dissipation bad service life for influencing engine and other related components also, reduce the property of charging vehicle
Energy and benefit.
Utility model content
The utility model aim is, provides a kind of engine thermal management system and the charging vehicle including it, is able to satisfy and fills
Charge requirement under the various operating conditions of electric car, realizes that charging vehicle is safe and efficient, economically runs.
In order to solve the above-mentioned technical problem, according to the utility model first embodiment, a kind of engine thermal management is provided
System, comprising:
Cooling circuit,
The cooling circuit is used for when engine temperature is higher than the first preset temperature, and the cooling engine is described cold
But circuit include the first cooling system and the second cooling system, the second cooling system and the first cooling system series connection or simultaneously
Couple in the cooling circuit.
It further, further include heating circuit, the heating circuit is used to be lower than the second preset temperature in engine temperature
When, heat the engine；
It is switched on or switched off the component in the second cooling system and/or first device in the adjustment the second cooling system
The corresponding parameter of part, so as to adjust the temperature of the coolant liquid of cooling circuit output；
The temperature of engine is maintained the second preset temperature and the first preset temperature by the heating circuit and cooling circuit
Between.
Further, the component in the second cooling system includes one of water pump, blower and radiator or more
Kind, the corresponding parameter of component in the second cooling system includes the heat dissipation area of pump capacity, rotation speed of fan, radiator
One of or it is a variety of.
Further, the engine thermal management system further includes switching device and water supply device, with the engine
It is connected；
The switching device is used to control the on-off of the heating circuit and cooling circuit, including the first liquid outlet and second
Liquid outlet, one end of the first liquid outlet connection heating circuit, second liquid outlet connect one end of the cooling circuit,
First liquid outlet is connected, and the heating circuit is connected, and first liquid outlet is closed, and the heating circuit disconnects, described
Second liquid outlet is connected, and the cooling circuit is connected, and second liquid outlet is closed, and the cooling circuit disconnects；
The water supply device is also connected with the other end of the other end of the cooling circuit and heating circuit.
Further, the switching device is thermostat, and the water supply device is water pump.
Further, the inlet of the engine is connect with the liquid outlet of the water supply device, and the engine goes out
Liquid mouth is connected with the inlet of the switching device；
First liquid outlet of the switching device is connected with the inlet of the water supply device by the heating circuit,
The engine, switching device, heating circuit and water supply device constitute heat cycles circuit.
Further, the cooling circuit includes the first cooling system and the second cooling system being connected in series, described to cut
Second liquid outlet of changing device is connected with the inlet of first cooling system, the liquid outlet of first cooling system with
The inlet of the second cooling system is connected, the inlet of the liquid outlet of the second cooling system and the water supply device
It is connected, the engine, switching device and water supply device, the first cooling system and the second cooling system constitute cooling cycle and return
Road.
Further, the cooling circuit further includes first switch and the second switch, the first switch and described second
Whether the second cooling system described in switch co- controlling accesses in the cooling circuit, wherein
The liquid outlet of first cooling system is connected with one end of the first switch, the feed liquor of the water supply device
Mouth is connected with the other end of the first switch；The liquid outlet phase of one end of the second switch and first cooling system
Connection, the other end are connected with the inlet of the second cooling system；
The first switch is connected, and the second switch disconnects, and the second cooling system does not access the cooling circuit
In；The first switch disconnects, and the second switch is connected, and the second cooling system accesses in the cooling circuit.
Further, the cooling circuit includes the first cooling system and the second cooling system being connected in parallel, described to cut
Second liquid outlet of changing device is connected with the inlet of the inlet of first cooling system, the second cooling system respectively
It connects, the liquid outlet feed liquor with the water supply device respectively of the liquid outlet of first cooling system, the second cooling system
Mouth is connected, and the engine, switching device and water supply device, the first cooling system and the second cooling system constitute cooling cycle
Circuit.
Further, the cooling circuit further includes third switch, for controlling whether the second cooling system accesses
In the cooling circuit, wherein
One end of the third switch connects the liquid outlet of the switching device, and the other end connects the second cooling system
Inlet；
The third switch disconnects, and the second cooling system does not access in the cooling circuit, and the third switch connects
Logical, the second cooling system accesses in the cooling circuit.
According to the utility model second embodiment, a kind of charging vehicle, including the engine thermal management system are provided.
Further, the charging vehicle includes generator, is connected with engine, generator described in the engine driving
Power generation.
The utility model has clear advantage and beneficial effect compared with prior art.By above-mentioned technical proposal, originally
A kind of engine thermal management system of utility model and it can reach comparable technical progress and practicability including its charging vehicle, and
With the extensive utility value in industry, at least have the advantage that
(1) engine thermal management system described in the utility model and according to temperature control demand, control the second cooling system with
First cooling system is connected in series or mode in parallel accesses cooling circuit or do not access the cooling circuit, changes so as to meet
Temperature requirements of the charging vehicle under different operating conditions and operating condition after dress guarantee engine operation in reasonable temperature range
Interior work can extend the engine of charging vehicle and the service life of other related devices, promote the performance and benefit of charging vehicle.
(2) engine thermal management system described in the utility model can not change the first of former car engine heat management system
On the basis of the control strategy of cooling system, the difference of charging vehicle is only met by adjusting the control strategy of the second cooling system
The temperature requirements of state be not only able to satisfy hot property demand when charging vehicle power generation in parking, but also will not influence charging vehicle normally travel
When working condition, structure is simple and at low cost, makes that charging vehicle is safe and efficient, economically runs.
The above description is merely an outline of the technical solution of the present invention, in order to better understand the skill of the utility model
Art means, and being implemented in accordance with the contents of the specification, and in order to allow the above and other purpose, feature of the utility model
It can be more clearly understood with advantage, it is special below to lift preferred embodiment, and cooperate attached drawing, detailed description are as follows.
Detailed description of the invention
Fig. 1 is the engine thermal management system schematic diagram that the utility model embodiment one provides；
Fig. 2 is the engine thermal management system schematic diagram that the utility model embodiment two provides；
Fig. 3 is the engine thermal management system schematic diagram that the utility model embodiment three provides；
Fig. 4 is the engine thermal management system schematic diagram that the utility model embodiment four provides.
[symbol description]
1: the first cooling system 2: the second cooling system
3: engine 4: water supply device
5: the 51b: the first liquid outlet of switching device
52b: the second liquid outlet 6: first switch
7: second switch 8: third switch
The liquid outlet of the 1b: the first cooling system of inlet of 1a: the first cooling system
2a: the inlet 2b: the liquid outlet of the second cooling system of the second cooling system
3a: the inlet 3b: the liquid outlet of engine of engine
4a: the inlet 4b: the liquid outlet of water supply device of water supply device
5a: the inlet of switching device
Specific embodiment
Further to illustrate that the utility model is the technical means and efficacy reaching predetermined purpose of utility model and being taken,
Below in conjunction with attached drawing and preferred embodiment, to according to the utility model proposes a kind of engine thermal management system and including its
The specific embodiment and its effect of charging vehicle, detailed description is as follows.
In order to solve the above-mentioned technical problem, according to the utility model first embodiment, a kind of engine thermal management is provided
System, comprising: cooling circuit, cooling circuit are used for when engine temperature is higher than the first preset temperature, and cooling engine is described
Cooling circuit includes the first cooling system 1 and the second cooling system 2.Wherein, the second cooling system 2 and the first cooling system 1 string
In connection or the access cooling circuit in parallel.Engine thermal management system described in the utility model embodiment, which can both meet, to be filled
Hot property demand of the electric car in power generation in parking, and the hot property demand in charging vehicle driving process can be met, to ensure that
Charging vehicle is safely and efficiently run.
Engine thermal management system further includes heating circuit, and heating circuit is used in engine temperature lower than the second default temperature
When spending, heated engine.It is cooling by the component and/or adjustment described second that are switched on or switched off in the second cooling system
The corresponding parameter of component in system, so as to adjust the temperature of the coolant liquid of cooling circuit output；The heating circuit
And cooling circuit maintains the temperature of engine between the second preset temperature and the first preset temperature.
As an example, the first cooling system 1 is the cooling system in the former car engine heat management system before vehicle refitting,
The second cooling system 2 is the cooling system increased newly on former vehicle heat management system.Since the charging vehicle after repacking is in power generation in parking
In the process, differing widely before radiating requirements and repacking, if also using the control strategy of former car engine heat management system by nothing
Method meets the cooling requirements of engine 3, if but directly change the control strategy of former car engine heat management system, it is but possible to make
Be subcooled at engine 3 during normal vehicle operation, i.e., due in vehicle travel process rotation speed of fan it is excessive, along with vehicle is high
Speed travels generated air quantity, causes to flow out from radiator, the coolant temperature for flowing back to engine 3 is too low.In addition, former vehicle is transformed
The radiator structure of the cooling system of engine thermal management system is the fever function of range according to ambient temperature, engine 3
The design of the combined factors such as rate range, the travel speed range of vehicle, the air quantity range of blower, and before the operating condition of charging vehicle and transformation
Above-mentioned factor exist different, therefore be unable to satisfy charging vehicle parking hair only with the radiator structure of former the first cooling system of vehicle 1
Radiating requirements when electric, if simply changing radiator structure, heat dissipation of the charging vehicle after meeting repacking in power generation in parking, but
The temperature of coolant liquid can not be controlled when may cause vehicle driving again reasonable, influence vehicle under normally travel operating condition
State.Therefore the utility model embodiment increases the second cooling system 2 newly on former vehicle heat management system, can keep the first of former vehicle
The control strategy of cooling system 1 is constant, only the access way of change the second cooling system 2 and corresponding control strategy, to meet
Hot property demand under the different conditions of charging vehicle, reduces the production cost of the heat management system of charging vehicle.
It should be noted that can be according to ambient temperature, 3 power bracket of engine, Vehicle Speed, engine 3
The parameters such as the temperature range of work specifically to set the control strategy of cooling system.Those skilled in the art obtaining heat dissipation it is found that need
Ask and above-mentioned parameter in the case where, the operating status and parameter of each building block in corresponding cooling system can be set, herein not
It repeats again.
It is illustrated so that the first cooling system 1 and the second cooling system 2 are liquid cooling system as an example, then engine temperature,
It can directly be reacted, can directly be detected by sensor by in-engine coolant temperature.In the present embodiment, start
The working principle of machine heat management system are as follows: when the temperature of coolant liquid in engine 3 is higher than the first preset temperature, connect described cold
But circuit is adjusted by controlling on-off and/or the corresponding parameter of each component of the component in the second cooling system 2
The temperature of the coolant liquid of cooling circuit output, the component in the second cooling system 2 includes water pump, blower and heat dissipation
One of components such as device are a variety of, can be by adjusting the pump capacity of the second cooling system 2, rotation speed of fan, radiator
The parameters such as heat dissipation area adjust the temperature of the coolant liquid of the cooling circuit output.Coolant liquid in engine 3, which flows through, to be cooled back
Road is radiated, to reduce temperature, then is flowed back to inside engine 3, to reduce the temperature of coolant liquid in engine 3.Work as institute
When stating in engine 3 coolant temperature lower than the second preset temperature, the cooling circuit is disconnected, coolant liquid flows only through heating circuit
The circulating-heating in engine 3.It should be noted that heating circuit also has at this time without closing when opening cooling circuit
A part of coolant liquid recycles in the heating circuit, and most of coolant liquid enters in the cooling circuit and recycles.Pass through institute
Cooling circuit and heating circuit are stated, the temperature of engine 3 is maintained between second the-the first preset temperature of preset temperature.Hair
The working efficiency too high or too low for temperature that can all influence engine 3 of motivation 3, therefore engine 3 is usually maintained in certain temperature
It spends in range, guarantees the working efficiency of engine 3.- the first preset temperature of second preset temperature is the temperature range, the
One preset temperature and the second preset temperature specific value are set according to vehicle, 3 model of engine etc. because usually specific.
The engine thermal management system further includes switching device 5 and water supply device 4, is connected with engine 3；
Switching device 5 is used to control the on-off of the heating circuit and cooling circuit, including the first liquid outlet 51b and second
Liquid outlet 52b, one end of the first liquid outlet 51b connection heating circuit, the second liquid outlet 52b connect the one of the cooling circuit
End, the first liquid outlet 51b are connected, and heating circuit is connected, and the first liquid outlet 51b is closed, and heating circuit disconnects, the second liquid outlet
52b is connected, and cooling circuit is connected, and the second liquid outlet 52b is closed, and cooling circuit disconnects；Water supply device 4 is also another with cooling circuit
The other end of one end and heating circuit is connected.
As one embodiment, the switching device 5 is thermostat, and water supply device 4 is water pump.When cooling in engine 3
When the temperature of liquid is higher than first preset temperature, the phase-change material in thermostat, which is heated, to be melted, and the second liquid outlet 52b is connected,
Cooling circuit is connected；Phase-change material when the temperature of coolant liquid in engine 3 is lower than first preset temperature, in thermostat
Solidification, the second liquid outlet 52b are closed, and cooling circuit disconnects.
Engine thermal management system as shown in Figs 1-4, the inlet 3a of engine and the liquid outlet 4b of water supply device connect
It connects, the liquid outlet 3b of engine is connected with the inlet 5a of switching device；First liquid outlet 51b of switching device 5 and water supply
The inlet 4a of device is connected, and engine 3, switching device 5, heating circuit and water supply device 4 constitute heat cycles circuit.
The heating circuit of charging vehicle is identical as the working principle of former vehicle heating circuit after transformation, structure and the equal nothing of control strategy
The heating that can be realized to coolant liquid in engine 3 need to be changed.The cooling circuit of charging vehicle can be according to specific charging after transformation
The parameters such as ambient temperature, charge power, the initial temperature of engine 3, radiating requirements and the vehicle space of vehicle determine
Two cooling systems 2 are still connected with 1 parallel connection of the first cooling system and corresponding control strategy.
As an example, it if work operating condition after vehicle refitting, is greatly increased compared to the radiating requirements before repacking, and
The space of vehicle is enough, then may be selected the second cooling system 2 and the concatenated structure of the first cooling system 1, on the contrary then select second
The structure in parallel with the first cooling system 1 of cooling system 2.This is because if the radiating requirements of engine 3 greatly increase, it is cold
But circuit need to increase biggish heat dissipation area, and the structure of larger heat dissipation area is smaller to drag effects, allow in vehicle space
In the case where preferably select the second cooling system 2 and the concatenated structure of the first cooling system 1.Conversely, if radiating requirements increase is smaller
Or vehicle space is inadequate, then the lesser radiator structure of heat dissipation area may be selected, but will lead to fluid stream since heat dissipation area is smaller
Resistance through newly-increased the second cooling system 2 increases, so preferably selecting the second cooling system 2 in parallel with the first cooling system 1
Structure reduces the limitation that influences and meet space of the second cooling system 2 to resistance.
Below by way of specific embodiment, the specific structure of the cooling circuit of the engine thermal management system is said
It is bright:
Embodiment one,
As shown in Figure 1, cooling circuit includes the first cooling system 1 and the second cooling system 2 being connected in series.Switching device
5 the second liquid outlet 52b is connected with the inlet 1a of the first cooling system, and the liquid outlet 1b of the first cooling system and second is cold
But the inlet 2a of system is connected, and the liquid outlet 2b of the second cooling system is connected with the inlet 4a of water supply device, starts
Machine 3, switching device 5 and water supply device 4, the first cooling system 1 and the second cooling system 2 constitute cooling circuit.
During charging vehicle normally travel, engine thermal management system shown in FIG. 1 is not changing the cooling of vehicle original
On the basis of the control strategy of system, the cooling device in the second cooling system 2 is closed, such as water pump, blower, radiator make the
Two cooling systems 2 only provide the circulation effect of coolant liquid.At this point, coolant liquid flow through the second cooling system 2 will not be to charging vehicle just
Often cooling circuit impacts during traveling, can be by cooling on the basis of the control strategy of former first cooling system 1 of vehicle
Liquid and the control of 3 temperature of engine are between second the-the first preset temperature of preset temperature.
During charging vehicle power generation in parking, engine thermal management system shown in FIG. 1 is not changing the cooling of vehicle original
It on the basis of the control strategy of system, is required according to the output of the temperature of coolant liquid, engine 3, the factors such as external environmental condition,
Corresponding control strategy is formulated to the second cooling system 2, controls opening for water pump, blower, radiator in the second cooling system 2 etc.
It opens or closes and corresponding operating parameter, such as the heat dissipation area of pump capacity, rotation speed of fan, radiator, thus control the
The heat-sinking capability of two cooling systems 2, by coolant liquid and the control of the temperature of engine 3 in reasonable range, i.e. the second preset temperature-
Between first preset temperature.
Embodiment two,
In first cooling system 1 and the series connection access cooling circuit of the second cooling system 2, in the process of charging vehicle normally travel
In, the second cooling system 2 only provides the circulation effect of coolant liquid, but coolant liquid flows through the second cooling system 2 still can generate one
Fixed temperature change will not influence the cooling circuit during charging vehicle normally travel when range of temperature is smaller, but
When variation range is larger, then the operation of the cooling circuit during charging vehicle normally travel can be impacted, thus shadow
Ring the temperature control of engine 3.As the deformation of embodiment one kind, engine thermal management system as shown in Figure 2 can effectively be kept away
Exempt from the generation of above situation, the cooling circuit of the engine thermal management system further includes first switch 6 and second switch 7, and first
Whether switch 6 and 7 co- controlling the second cooling system 2 of second switch access in the cooling circuit.Specifically, the first cooling system
The liquid outlet 1b of system is connected with 6 one end of first switch, and the inlet 4a of water supply device is connected with the other end of first switch 6
It connects.7 one end of second switch is connected with the liquid outlet 1b of the first cooling system, the inlet 2a of the other end and the second cooling system
It is connected.First switch 6 is connected, and second switch 7 disconnects, and the second cooling system 2 does not access in the cooling circuit；First switch
6 disconnect, and second switch 7 is connected, and the second cooling system 2 accesses in the cooling circuit.
During charging vehicle normally travel, it is closed first switch 6, disconnects second switch 7, the first cooling system 1 connects
Enter cooling circuit, the second cooling system 2 does not access cooling circuit.Then water of the coolant liquid fully according to original first cooling system 1
Road circulation, is not influenced by newly-increased the second cooling system 2, is run under the control strategy of vehicle original cooling system.
During charging vehicle power generation in parking, first switch 6 is disconnected, is closed second switch 7,1 He of the first cooling system
In the series connection access cooling circuit of the second cooling system 2.On the basis of not changing the control strategy of vehicle original cooling system, according to cold
But the factors such as the temperature of liquid, the output requirement of engine 3, external environmental condition, formulate corresponding control to the second cooling system 2
System strategy, as control the second cooling system 2 in water pump, blower, radiator open or close and corresponding operation join
Number, such as the heat dissipation area of pump capacity, rotation speed of fan, radiator, so that the heat-sinking capability of the second cooling system 2 is controlled, from
And by coolant liquid and the control of the temperature of engine 3 between reasonable range, i.e. second the-the first preset temperature of preset temperature.Make
For a kind of embodiment, first switch 6 and second switch 7 can be solenoid valve.In addition, during charging vehicle power generation in parking,
If the first cooling system 1, which is used only, can meet the radiating requirements of engine 3, closure first switch 6 can also be used, disconnect the
Two switches 7 only access the first cooling system 1, do not access cooling circuit described in the structure composition of the second cooling system 2.
Embodiment three,
As shown in figure 3, cooling circuit includes the first cooling system 1 and the second cooling system 2 being connected in parallel.Switching device
5 the second liquid outlet 52b is connected with the inlet 2a of the inlet 1a of the first cooling system, the second cooling system respectively, the
The liquid outlet 1b of one cooling system, the liquid outlet 2b of the second cooling system are connected with the inlet 4a of water supply device respectively, hair
Motivation 3, switching device 5 and water supply device 4, the first cooling system 1 and the second cooling system 2 constitute cooling circuit.
During charging vehicle normally travel, engine thermal management system shown in Fig. 3 is cooling not changing vehicle original
On the basis of the control strategy of system, the cooling device in the second cooling system 2 is closed, such as water pump, blower, radiator make the
Two cooling systems 2 only provide coolant liquid circulation effect, at this point, coolant liquid flow through the second cooling system 2 will not be to charging vehicle just
Often cooling circuit impacts during traveling, on the basis of the control strategy of former first cooling system 1 of vehicle, can will start
3 temperature of machine controls between second the-the first preset temperature of preset temperature.
During charging vehicle power generation in parking, engine thermal management system shown in Fig. 3 is cooling not changing vehicle original
It on the basis of the control strategy of system, is required according to the output of the temperature of coolant liquid, engine 3, the factors such as external environmental condition,
Corresponding control strategy is formulated to the second cooling system 2, as controlled the water pump in the second cooling system 2, blower, radiator
It opens or closes and corresponding operating parameter, such as the heat dissipation area of pump capacity, rotation speed of fan, radiator, to control
The heat-sinking capability of the second cooling system 2, so that coolant liquid and the control of the temperature of engine 3 is pre- in reasonable range, i.e., second
If between the-the first preset temperature of temperature.
Example IV,
In first cooling system 1 and the access cooling circuit in parallel of the second cooling system 2, in the process of charging vehicle normally travel
In, the second cooling system 2 only provides the circulation effect of coolant liquid, but coolant liquid flows through the second cooling system 2 still can generate one
Fixed temperature change will not influence the cooling circuit during charging vehicle normally travel when range of temperature is smaller, but
When variation range is larger, then the operation of the cooling circuit during charging vehicle normally travel can be impacted, thus shadow
Ring the temperature control of engine 3.As a kind of deformation of embodiment three, engine thermal management system as shown in Figure 4 can be effective
Avoid the generation of above situation.The cooling circuit of the engine thermal management system further includes third switch 8, cold for controlling second
But whether system 2 accesses in the cooling circuit.The liquid outlet 5b of one end connection switching apparatus of third switch 8, the other end connect
The inlet 2a of the second cooling system is met, third switch 8 disconnects, and the second cooling system 2 does not access in the cooling circuit, third
Switch 8 is connected, and the second cooling system 2 accesses in the cooling circuit.
During charging vehicle normally travel, disconnection third switch 8, the first cooling system 1 access cooling circuit, second
Cooling system 2 does not access cooling circuit.Then coolant liquid fully according to original first cooling system 1 waterway circulating, not by newly-increased
The second cooling system 2 influence, run under the control strategy of vehicle original cooling system.
During charging vehicle power generation in parking, it is closed third switch 8, the first cooling system 1 and the second cooling system 2 are simultaneously
Couple in cooling circuit.On the basis of not changing the control strategy of vehicle original cooling system, according to the temperature of coolant liquid, start
The factors such as the output of machine 3 requires, external environmental condition, formulate corresponding control strategy to the second cooling system 2, such as control the
Water pump, blower, radiator in two cooling systems 2 etc. open or close and corresponding operating parameter, as pump capacity,
Rotation speed of fan, heat dissipation area of radiator etc., so that the heat-sinking capability of the second cooling system 2 is controlled, thus by coolant liquid and hair
The temperature of motivation 3 controls between reasonable range, i.e. second the-the first preset temperature of preset temperature.As one embodiment,
Three switches 8 can be solenoid valve.In addition, during charging vehicle power generation in parking, if the first cooling system 1, which is used only, to expire
The radiating requirements of sufficient engine 3 then can also be used disconnection third switch 8 and not access described in the structure composition of the second cooling system 2
Cooling circuit.
It should be noted that coolant liquid flows into the component inlet of the above-mentioned all parts i.e. component in the loop
Interface, coolant liquid flows out the interface of the component to the liquid outlet i.e. component in the loop.
The utility model embodiment additionally provides a kind of charging vehicle, including engine described in the utility model any embodiment
Heat management system.
The charging vehicle includes generator, is connected with engine 3, and the engine 3 drives the electrical power generators, is
Access the Vehicular charging of the charging vehicle.Since the output power of engine 3 is larger, 3 driven generator of engine is used
The output power that charging vehicle can be improved, while to realize fast charge, space and load-carrying to vehicle require to greatly reduce, and energy
Enough realize the power generation needs of relatively high power.
The above descriptions are merely preferred embodiments of the present invention, not makees in any form to the utility model
Limitation be not intended to limit the utility model although the utility model has been disclosed with preferred embodiment as above, it is any ripe
Professional and technical personnel is known, is not being departed within the scope of technical solutions of the utility model, when in the technology using the disclosure above
Hold the equivalent embodiment made a little change or be modified to equivalent variations, but all without departing from technical solutions of the utility model
Hold, any simple modification, equivalent change and modification made by the above technical examples according to the technical essence of the present invention, still
It is within the scope of the technical solutions of the present invention.
Claims (12)
1. a kind of engine thermal management system, it is characterised in that: include:
Cooling circuit,
The cooling circuit is used for when engine temperature is higher than the first preset temperature, and the cooling engine is described to cool back
Road includes the first cooling system and the second cooling system, the second cooling system and the first cooling system is in series or in parallel connects
Enter in the cooling circuit.
2. engine thermal management system according to claim 1, it is characterised in that:
It further include heating circuit, the heating circuit is used to heat the hair when engine temperature is lower than the second preset temperature
Motivation；
It is switched on or switched off the component in the second cooling system and/or the component pair in the adjustment the second cooling system
The parameter answered, so as to adjust the temperature of the coolant liquid of cooling circuit output；
The heating circuit and cooling circuit maintain the temperature of engine between the second preset temperature and the first preset temperature.
3. engine thermal management system according to claim 2, it is characterised in that:
Component in the second cooling system includes one of water pump, blower and radiator or a variety of, and described second is cold
But the corresponding parameter of component in system includes one of heat dissipation area of pump capacity, rotation speed of fan, radiator or more
Kind.
4. engine thermal management system according to claim 2, it is characterised in that:
The engine thermal management system further includes switching device and water supply device, is connected with the engine；
The switching device is used to control the on-off of the heating circuit and cooling circuit, including the first liquid outlet and second goes out liquid
Mouthful, one end of the first liquid outlet connection heating circuit, second liquid outlet connects one end of the cooling circuit, described
First liquid outlet is connected, and the heating circuit is connected, and first liquid outlet is closed, and the heating circuit disconnects, and described second
Liquid outlet is connected, and the cooling circuit is connected, and second liquid outlet is closed, and the cooling circuit disconnects；
The water supply device is also connected with the other end of the other end of the cooling circuit and heating circuit.
5. engine thermal management system according to claim 4, it is characterised in that:
The switching device is thermostat, and the water supply device is water pump.
6. engine thermal management system according to claim 4, it is characterised in that:
The inlet of the engine is connect with the liquid outlet of the water supply device, the liquid outlet of the engine and the switching
The inlet of device is connected；
First liquid outlet of the switching device is connected with the inlet of the water supply device by the heating circuit, described
Engine, switching device, heating circuit and water supply device constitute heat cycles circuit.
7. engine thermal management system according to claim 4, it is characterised in that:
The cooling circuit includes the first cooling system and the second cooling system being connected in series, and the second of the switching device goes out
Liquid mouth is connected with the inlet of first cooling system, the liquid outlet of first cooling system and second cooling system
The inlet of system is connected, and the liquid outlet of the second cooling system is connected with the inlet of the water supply device, the hair
Motivation, switching device and water supply device, the first cooling system and the second cooling system constitute cooling circuit.
8. the engine thermal management system stated according to claim 7, it is characterised in that:
The cooling circuit further includes first switch and the second switch, the first switch and the second switch co- controlling institute
State whether the second cooling system accesses in the cooling circuit, wherein
The liquid outlet of first cooling system is connected with one end of the first switch, the inlet of the water supply device with
The other end of the first switch is connected；One end of the second switch is connected with the liquid outlet of first cooling system
It connects, the other end is connected with the inlet of the second cooling system；
The first switch is connected, and the second switch disconnects, and the second cooling system does not access in the cooling circuit；Institute
First switch disconnection is stated, the second switch is connected, and the second cooling system accesses in the cooling circuit.
9. engine thermal management system according to claim 4, it is characterised in that:
The cooling circuit includes the first cooling system and the second cooling system being connected in parallel, and the second of the switching device goes out
Liquid mouth is connected with the inlet of the inlet of first cooling system, the second cooling system respectively, and described first is cold
But the liquid outlet of system, the second cooling system liquid outlet be connected respectively with the inlet of the water supply device, it is described
Engine, switching device and water supply device, the first cooling system and the second cooling system constitute cooling circuit.
10. engine thermal management system according to claim 9, it is characterised in that:
The cooling circuit further includes third switch, for controlling whether the second cooling system accesses the cooling circuit
In, wherein
One end of third switch connects the liquid outlet of the switching device, the other end connect the second cooling system into
Liquid mouth；
The third switch disconnects, and the second cooling system does not access in the cooling circuit, the third switch connection, institute
The second cooling system is stated to access in the cooling circuit.
11. a kind of charging vehicle, which is characterized in that including engine thermal management system described in any one of claim 1-10.
12. the charging vehicle according to claim 11, it is characterised in that: further include generator, is connected with engine,
Electrical power generators described in the engine driving.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821431583.3U CN208702515U (en) | 2018-08-31 | 2018-08-31 | Engine thermal management system and charging vehicle including it |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821431583.3U CN208702515U (en) | 2018-08-31 | 2018-08-31 | Engine thermal management system and charging vehicle including it |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108952923A (en) * | 2018-08-31 | 2018-12-07 | 蔚来汽车有限公司 | Engine thermal management system and charging vehicle including it |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108952923A (en) * | 2018-08-31 | 2018-12-07 | 蔚来汽车有限公司 | Engine thermal management system and charging vehicle including it |
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Effective date of registration: 20200731 Address after: Susong Road West and Shenzhen Road North, Hefei Economic and Technological Development Zone, Anhui Province Patentee after: Weilai (Anhui) Holding Co., Ltd Address before: China Hong Kong Patentee before: NIO NEXTEV Ltd. |