Integrated thermal management system of hybrid tractor

Abstract

The utility model relates to an integrated thermal management system of a hybrid power tractor, which is characterized in that an engine radiator of an engine management system is connected with an intercooler and is positioned at the rear part of a motor radiator, and the engine radiator is connected and communicated with a water inlet of an engine through an engine radiating water pump; a water outlet of the engine is communicated with a water inlet of the engine radiator; the air filter is connected with an air inlet of the engine through the turbocharger and the intercooler; a temperature sensor is installed on a motor radiator of the motor management system, a motor radiating electronic water pump is connected with a water inlet of a motor controller of a generator through the motor radiator and a motor radiating mechanical water pump, and a water outlet of the generator is connected with a water inlet of a driving motor. And water outlets of the driving motor and the motor controller are connected and communicated with a water inlet of the motor heat dissipation electronic water pump. The utility model has a compact structure, can reduce the overall weight of the vehicle, reduces the manufacturing cost, the maintenance cost and the driving energy loss, and improves the reliability and durability of the vehicle.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of integrated heat management system of hybrid tractor, belong to tractor heat management system technical field. BACKGROUND

[0002] Wheeled tractor is mainly used for field work, and its heat management system is the core part. The intercooler and engine radiator in the traditional tractor heat management system are arranged in front and back of the vehicle, which can meet the condition without other heat dissipation requirements, but it causes large wind resistance and low vehicle space utilization. However, the current hybrid tractor has gradually become a new direction of industry development due to its energy-saving and power performance advantages, but because it integrates fuel engine and motor as two power sources, the heat generation situation is complex. On the one hand, the fan speed is reduced but the heat dissipation requirement is increased, and on the other hand, the engine, motor and its controller have large differences in heat characteristics under different working conditions, so the traditional heat management system cannot accurately match the heat dissipation requirements of the two, which easily leads to overheating of the power system components and affects the vehicle performance and service life. SUMMARY

[0003] The utility model aims at providing a kind of integrated heat management system of hybrid tractor with compact structure, which can reduce the overall weight of the vehicle, reduce manufacturing cost, maintenance cost and driving energy loss, and improve the reliability and durability of the vehicle

[0004] The technical scheme to achieve the above-mentioned purpose of the utility model is: an integrated heat management system of hybrid tractor, characterized by comprising an engine management system and a motor management system.

[0005] The engine management system includes an engine radiator, an intercooler, an engine cooling water pump, a turbocharger, an engine and an air filter. The engine radiator is connected to the intercooler and located behind the motor radiator. The water outlet of the engine radiator is connected to the water inlet of the engine through the engine cooling water pump, and the water outlet of the engine is connected to the water inlet of the engine radiator. The air outlet of the air filter is connected to the air inlet of the turbocharger, the air outlet of the turbocharger is connected to the air inlet of the intercooler, and the air outlet of the intercooler is connected to the air inlet of the engine.

[0006] The motor management system comprises a motor heat dissipation electronic water pump, a motor radiator, a generator, a driving motor, a motor controller and a motor heat dissipation mechanical water pump, a temperature sensor is installed on the motor radiator, an output side of the temperature sensor is connected with an electronic control unit, the electronic control unit is used for outputting a flow signal for controlling the motor heat dissipation electronic water pump, a water outlet of the motor heat dissipation electronic water pump is connected with a water inlet of the motor radiator, a water outlet of the motor radiator is connected with a water inlet of the generator and a water inlet of the motor controller through the motor heat dissipation mechanical water pump, a water outlet of the generator is connected with a water inlet of the driving motor, and a water outlet of the driving motor and a water outlet of the motor controller are connected with a water inlet of the motor heat dissipation electronic water pump.

[0007] The motor heat dissipation electronic water pump is adopted, liquid to be cooled is cooled through the motor radiator, the temperature sensor monitors the temperature of the motor radiator in real time, and the temperature signal is transmitted to the electronic control unit, the electronic control unit outputs a control signal to control the flow of the motor heat dissipation electronic water pump, the intelligent temperature control adjustable flow electronic water pump is realized, liquid can be supplied as required, the generator, the driving motor and the motor controller can be precisely cooled, the temperature of the power system components of the hybrid tractor can be kept in a reasonable range during long-time operation in a field, the vehicle performance is stable, the service life is effectively prolonged, and powerful guarantee is provided for efficient and stable agricultural production. The engine radiator and the intercooler are connected and located at the rear of the motor radiator, the engine radiator and the intercooler are ingeniously integrated into one body, the space utilization is greatly improved, the air flow resistance is reduced, the cooling efficiency is greatly improved, the manufacturing cost and the maintenance cost are reduced, and the vehicle reliability and durability are improved. The engine radiator is cooled and circulated by the engine radiator water pump, dry and clean air filtered through the air filter enters the intercooler through the turbocharger, and the intake temperature of the engine is reduced by the intercooler. The compact structure can reduce the overall weight of the vehicle, reduce the driving energy loss and improve the fuel economy. BRIEF DESCRIPTION OF DRAWINGS

[0008] The embodiments of the utility model will be described in further detail below with reference to the drawings.

[0009] Figure 1 It is a structure schematic view of the integrated heat management system of the hybrid power tractor.

[0010] Among them: 1 - motor heat dissipation electronic water pump, 2 - temperature sensor, 3 - motor radiator, 4 - engine radiator, 5 - intercooler, 6 - engine radiator water pump, 7 - turbocharger, 8 - motor heat dissipation mechanical water pump, 9 - air filter, 10 - engine, 11 - generator, 12 - driving motor, 13 - motor controller. DETAILED DESCRIPTION

[0011] See Figure 1 The utility model discloses an integrated heat management system of hybrid tractor, including engine management system and motor management system.

[0012] See Figure 1 The utility model discloses an engine management system, including engine radiator 4, intercooler 5, engine radiator water pump 6, turbocharger 7 and engine 10 and air cleaner 9, engine radiator 4 is connected with intercooler 5 and is located the rear portion of motor radiator 3, makes integral structure with engine radiator 4 and intercooler 5, can reduce airflow resistance under the premise of improving the space utilization of vehicle, reduce manufacturing cost and maintenance cost. Figure 1 The utility model discloses engine radiator 4's water outlet is connected with the water inlet of engine 10 through engine radiator water pump 6, engine radiator water pump 6 is connected with expansion tank through pipeline, is equipped with control valve on the pipeline, can supplement cooling liquid according to need, the water outlet of engine 10 is connected with the water inlet of engine radiator 4, and the cooling liquid after heat dissipation of engine radiator 4 enters engine 10, carries out heat exchange cooling to engine 10, and then the liquid after convection heat exchange enters engine radiator 4 and carries out cooling, to this circulation. The utility model discloses engine radiator 4, motor radiator 3 and intercooler 5 are integrated, and are installed on the frame, connect engine radiator 4, motor radiator 3 and intercooler 5 together, can further reduce the maintenance cost and repair difficulty of later period, can reduce the overall weight of vehicle, reduce the energy loss of driving.

[0013] See Figure 1 The utility model discloses air cleaner 9's gas outlet is connected with the air inlet of turbocharger 7, and the fresh air enters turbocharger 7 after passing through air cleaner 9, and the air is compressed to increase the air intake, to improve the power and torque of engine 10, the air outlet of turbocharger 7 is connected with the air inlet of intercooler 5, and the air outlet of intercooler 5 is connected at the air inlet of engine 10, to form a cycle, to reduce the temperature of high-temperature air after supercharging, reduce the thermal load of engine 10, improve the air intake, to further increase the power of engine 10.

[0014] See Figure 1As shown, the utility model motor management system includes motor heat dissipation electronic water pump 1, motor radiator 3, generator 11, drive motor 12 and motor controller 13 and motor heat dissipation mechanical water pump 8, be installed with temperature sensor 2 on motor radiator 3, and the output side of temperature sensor 2 is connected with electronic control unit, and electronic control unit is used for output control motor heat dissipation electronic water pump 1's flow signal, and the temperature of motor radiator 3 is monitored in real time through temperature sensor 2, and the temperature change signal monitored is transmitted to the electronic control unit ECU of existing vehicle in real time, and the signal is output according to the temperature signal of generator 11, drive motor 12 and motor controller 13 according to the temperature signal of motor radiator 3, and the flow of motor heat dissipation electronic water pump 1 can supply liquid as needed, realizes the accurate control to cooling liquid flow, makes generator 11, drive motor 12 and motor controller 13 reliable work when operating.

[0015] See Figure 1 As shown, the utility model motor heat dissipation electronic water pump 1's water outlet is connected with the water inlet of motor radiator 3, and the water outlet of the utility model motor heat dissipation electronic water pump 1 is connected with the water inlet in the upper portion of motor radiator 3 through first hose, and the liquid is cooled in motor radiator 3, and the water outlet of motor radiator 3 is connected with the water inlet of generator 11 and motor controller 13 through motor heat dissipation mechanical water pump 8, and the water outlet in the bottom portion of motor radiator 3 is connected with the water inlet of motor heat dissipation mechanical water pump 8 through second hose, and the water outlet of motor heat dissipation mechanical water pump 8 is connected with the water inlet of generator 11 and motor controller 13 through pipeline and branch pipe, and the cooling liquid is reliably pumped into the cooling pipeline of generator 11 and motor controller 13 through motor heat dissipation mechanical water pump 8 and is cooled, and the water outlet of generator 11 is connected with the water inlet of drive motor 12, and the cooling liquid of generator is cooled in drive motor 12, and the water outlet of drive motor 12 and the water outlet of motor controller 13 are connected with the water inlet of motor heat dissipation electronic water pump 1.

[0016] The water outlet in the lower portion of drive motor 12 and the water outlet in the lower portion of motor controller 13 are connected with one end of third hose, and the other end of third hose is connected with the water inlet of motor heat dissipation electronic water pump 1, and the liquid after convection heat exchange flows out from drive motor 12 and motor controller 13, and enters motor radiator 3 through motor heat dissipation electronic water pump 1 in parallel mode and is cooled, and the utility model motor heat dissipation electronic water pump 1 is connected with expansion tank through pipeline, and control valve is arranged on the pipeline, and the cooling liquid is supplemented according to need.

Claims

1. An integrated thermal management system for a hybrid tractor, characterized in that: This includes the engine management system and the electric motor management system; The engine management system includes an engine radiator (4), an intercooler (5), an engine water pump (6), a turbocharger (7), an engine (10), and an air filter (9). The engine radiator (4) is connected to the intercooler (5) and is located at the rear of the motor radiator (3). The outlet of the engine radiator (4) is connected to the inlet of the engine (10) through the engine water pump (6), and the outlet of the engine (10) is connected to the inlet of the engine radiator (4). The outlet of the air filter (9) is connected to the inlet of the turbocharger (7), and the outlet of the turbocharger (7) is connected to the inlet of the intercooler (5). The outlet of the intercooler (5) is connected to the inlet of the engine (10). The motor management system includes a motor cooling electronic water pump (1), a motor radiator (3), a generator (11), a drive motor (12), a motor controller (13), and a motor cooling mechanical water pump (8). A temperature sensor (2) is installed on the motor radiator (3). The output side of the temperature sensor (2) is connected to the electronic control unit. The electronic control unit is used to output a flow signal to control the motor cooling electronic water pump (1). The outlet of the motor cooling electronic water pump (1) is connected to the inlet of the motor radiator (3). The outlet of the motor radiator (3) is connected to the inlet of the generator (11) and the inlet of the motor controller (13) through the motor cooling mechanical water pump (8). The outlet of the generator (11) is connected to the inlet of the drive motor (12). The outlet of the drive motor (12) and the outlet of the motor controller (13) are connected to the inlet of the motor cooling electronic water pump (1).

2. The integrated thermal management system for a hybrid tractor according to claim 1, characterized in that: The engine radiator (4), motor radiator (3) and intercooler (5) are integrated into one unit and mounted on the vehicle frame.

3. The integrated thermal management system for a hybrid tractor according to claim 1, characterized in that: The outlet of the electric water pump (1) for motor cooling is connected to the inlet of the upper part of the motor radiator (3) through a first flexible hose. The outlet of the bottom of the motor radiator (3) is connected to the inlet of the mechanical water pump (8) for motor cooling through a second flexible hose. The outlet of the mechanical water pump (8) for motor cooling is connected to the inlet of the generator (11) and the inlet of the motor controller (13) through pipelines and branch pipes respectively.

4. The integrated thermal management system for a hybrid tractor according to claim 1, characterized in that: The water outlet at the bottom of the drive motor (12) and the water outlet at the bottom of the motor controller (13) are connected to one end of the third hose, and the other end of the third hose is connected to the water inlet of the motor cooling electronic water pump (1).

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