Summary of the invention
The technical problem to be solved is to provide a kind of hybrid power 4 wheel driven automobile cooling system, to reach to improve the purpose of cooling system reliability.
In order to solve above-mentioned technical problem, the technical solution adopted in the present invention is:
A kind of hybrid power 4 wheel driven automobile cooling system, circulates including electric drive cool cycles and engine cool；Coolant in electric drive cool cycles is driven by the water pump in electric drive cool cycles, and coolant, through rear-guard motor and precursor motor, radiator I, then through power module, is finally back to water pump；Coolant in engine cool circulation is carried water pump by electromotor and drives, and coolant is through electromotor, radiator II, then is back to electromotor；Radiator I and radiator II are a global facility.
Further, the water pump in described electric drive cool cycles is two water pumps being cascaded.
Described electric drive cool cycles includes expansion tank, water pump, rear-guard electric machine controller, rear-guard motor, precursor motor, radiator I, power module, precursor motor controller successively by coolant circular order.
The circulation of described engine cool includes electromotor, radiator II, overflow kettle, is built in electromotor temperature sensor.
The water pump of said two series connection is electronic water pump.
It is connected by aluminum metallic conduit between described water pump with rear-guard electric machine controller.
It is connected by aluminum metallic conduit between described rear-guard motor and precursor motor.
Described precursor motor controller, rear-guard electric machine controller, precursor motor, rear-guard motor are equipped with the temperature sensor for controlling pump working.
The present invention compared with prior art, has the advantage that
Adopt two set cool cycles to solve the problem that engine operating temperature cannot be compatible with miscellaneous part, meet each element cooling requirement in system；Two radiators are integrated, effectively reduces the volume of radiator, convenient layout on car load；Two water pump series connection, effectively reduce and use the volume that single water pump causes excessive, difficult arrangement problem；Decrease the part of complete cooling system, improve the reliability of cooling system.
Detailed description of the invention
Below against accompanying drawing, by the description to embodiment, the specific embodiment of the present invention is described in further detail.
As it is shown in figure 1, this hybrid power 4 wheel driven automobile cooling system, circulate including electric drive cool cycles and engine cool；Coolant in electric drive cool cycles is driven by the water pump in electric drive cool cycles, and coolant, through rear-guard motor and precursor motor, radiator I, then through power module, is finally back to water pump；Coolant in engine cool circulation is carried water pump by electromotor and drives, and coolant is through electromotor, radiator II, then is back to electromotor；Radiator I and radiator II are a global facility, effectively reduce the volume of radiator, convenient layout on car load.
Water pump in electric drive cool cycles is two water pumps being cascaded, and the water pump of two series connection is electronic water pump, it is simple to control.
Electric drive cool cycles includes expansion tank, water pump I, water pump II, rear-guard electric machine controller, rear-guard motor, precursor motor, radiator I, power module, precursor motor controller successively by coolant circular order.It is connected each through aluminum metallic conduit between water pump with rear-guard electric machine controller and between rear-guard motor and precursor motor.Use two water pump series connection, effectively reduce and use the volume that single water pump causes excessive, difficult arrangement problem, under underbody, front deck drive system is to cooling line between the drive system of rear portion, owing to distance is longer, uses aluminum metallic conduit, passive heat radiation, hard tube is easy to fix.
Engine cool circulation includes electromotor, radiator II, overflow kettle, is built in electromotor temperature sensor V.Precursor motor controller is provided with in temperature sensor IV, precursor motor and is provided with in temperature sensor III, rear-guard motor and is provided with in temperature sensor II, rear-guard electric machine controller is provided with temperature sensor I.The fan I of radiator I in electric drive cool cycles subsystem, starts or stops work according to the temperature signal that temperature sensor I, temperature sensor II, temperature sensor III and temperature sensor IV gather；The fan II of radiator II in engine cool cycle subsystem, starts or stops work according to the temperature signal that temperature sensor V gathers.
The coolant filled by expansion tank is transported in whole circulation by electronic water pump, it is to avoid and the filling difficulty that cause more due to parts；Use the series connection of two water pumps, it is to avoid the length of pipe that rear drive system causes at arrangement is long, it is possible to insufficient pressure problem；Under underbody, front deck drive system is to cooling line between the drive system of rear portion, owing to distance is longer, uses aluminum metallic conduit, passively dispels the heat, it is simple to be fixing；The operating temperature of electric machine controller and power module, lower than drive motor operating temperature, is cooled down be in rear-guard motor and precursor motor by heat sink location after, makes the water temperature of inflow electric machine controller and power module meet its temperature requirement.
Electromotor optimum working temperature is typically in 90 DEG C～100 DEG C, and precursor motor, rear-guard motor, electric machine controller and power module optimum working temperature are typically in 60 DEG C～70 DEG C.
The mechanical water pump that engine cool circulating cooling liquid is carried by electromotor drives, and engine water outlet temperature is about 90 DEG C～100 DEG C, and the engine radiator in adjustable radiation device system returns electromotor after dispelling the heat.In cooling system work, unnecessary coolant is adjusted by overflow kettle.Temperature in circulation controls to be completed by engine electric-controlled unit.
Electromotor cooling system coolant is driven by water pump, and after rear-guard motor and precursor motor, temperature is about 70 DEG C～80 DEG C, and through motor adjustable radiation device, temperature is down to 50 DEG C～60 DEG C, enters back into and front/rear drives electric machine controller and power module.In cooling system work, unnecessary coolant is adjusted by expansion tank.Temperature in circulation controls to be completed by entire car controller.
Front deck relay pump is between rear motor controller, and rear-guard motor is between precursor motor, using aluminum metal hard tube, it is to avoid the fixing difficulty in distance long pipe road, simultaneously in view of aluminum material heat-conducting effect, passively dispel the heat to a certain extent.
Namely whole system ensure that the coolant operating temperature of each system element, greatly reduces again the part of complete cooling system, reduces the risk of cooling system.
Above in conjunction with accompanying drawing, the present invention is exemplarily described; the obvious present invention implements and is not subject to the restrictions described above; as long as have employed the design of the present invention and the improvement of various unsubstantialities that technical scheme carries out; or the not improved design by the present invention and technical scheme directly apply to other occasion, all within protection scope of the present invention.