CN109910870B - Hybrid power system of heavy truck and control method - Google Patents

Hybrid power system of heavy truck and control method Download PDF

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CN109910870B
CN109910870B CN201910170312.XA CN201910170312A CN109910870B CN 109910870 B CN109910870 B CN 109910870B CN 201910170312 A CN201910170312 A CN 201910170312A CN 109910870 B CN109910870 B CN 109910870B
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clutch
vehicle
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CN109910870A (en
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罗南昌
周荣斌
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Fujian Zhongwei Power Technology Co Ltd
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Fujian Zhongwei Power Technology Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/72Electric energy management in electromobility
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/80Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/92Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles

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Abstract

The invention relates to the technical field of new energy commercial vehicles, in particular to a hybrid power system of a heavy truck and a control method, wherein the hybrid power system comprises a power module, a vehicle control unit module, a speed change module, an engine and a generator motor; the power supply module comprises a power supply manager and a storage battery, and the power supply manager is electrically connected with the storage battery; the power supply manager is electrically connected with the vehicle control unit module, the speed change module, the engine and the generator motor respectively; the vehicle control unit module is electrically connected with the speed changing module and the engine respectively; the speed changing module comprises a first clutch, a second clutch and a gearbox, and the engine is connected with the gearbox through the first clutch; the engine comprises a flywheel, and the generator motor is provided with a gear; the invention can be used as a generator and a motor device used as a motor by using the generator motor, can realize the reduction of the volume of the motor, and can realize the recovery of kinetic energy under the conditions of braking and the like.

Description

Hybrid power system of heavy truck and control method
Technical Field
The invention relates to the technical field of new energy commercial vehicles, in particular to a hybrid power system of a heavy truck and a control method.
Background
Due to increasingly stringent exhaust gas regulations and the need of vehicle owners to reduce operating costs, increasingly higher demands are being made on motor vehicles with regard to their fuel consumption and pollutant emissions, while at the same time a higher degree of driving comfort is desired. In order to achieve this object, it is known from practice to equip motor vehicles with automatic stop/start devices, by means of which the internal combustion engine can be automatically deactivated and started in predetermined states. Therefore, the internal combustion engine is automatically deactivated, for example, when driving force is not required (e.g., when stopped at a traffic light). As soon as driving force is again required, i.e. when the traffic light turns "green" and the driver operates the accelerator pedal, the vehicle is restarted by means of the electric motor, and the fuel consumption of the vehicle can be reduced in this way.
At present, the dead weight of the existing hybrid heavy truck is not very obvious, and the effect of hybrid generation is not obvious, so that the energy-saving and emission-reducing effects are not obvious.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the hybrid power system of the heavy truck and the control method thereof have the advantages of obvious energy-saving and emission-reducing effects and simple structure.
In order to solve the technical problems, the invention adopts a technical scheme that:
a hybrid power system of a heavy truck comprises a power supply module, a vehicle control unit module, a speed change module, an engine and a generator motor;
the power supply module comprises a power supply manager and a storage battery, and the power supply manager is electrically connected with the storage battery; an inverter component is arranged in the power supply manager;
the power supply manager is electrically connected with the vehicle control unit module, the speed change module, the engine and the generator motor respectively; the vehicle control unit module is electrically connected with the speed changing module and the engine respectively;
the speed changing module comprises a first clutch, a second clutch and a gearbox, and the engine is connected with the gearbox through the first clutch;
the engine comprises a flywheel, a gear meshed with the flywheel is arranged on the generator motor, and the generator motor is respectively connected with the flywheel and the gearbox through a second clutch.
In order to solve the technical problem, the invention adopts another technical scheme as follows:
the control method for the hybrid power system of the heavy truck comprises the following steps that the vehicle control unit module obtains and judges storage battery information through a power manager, and the control method comprises the following steps:
when the electric quantity is sufficient, the generator motor drives the vehicle to start; when the electric quantity is insufficient, the electric vehicle is driven by the engine;
when the engine needs to be started, the generator motor drives a gear on a generator motor shaft to be meshed with the flywheel through the first clutch, and the flywheel is driven to rotate so as to start the engine;
when the output efficiency of the whole vehicle needs to be improved and the electric quantity is sufficient, the engine and the generator motor are driven; when the electric quantity is insufficient, the electric vehicle is driven by the engine;
when the whole vehicle is in a stable working condition and the electric quantity is sufficient, the whole vehicle is driven by the generator motor and/or the engine;
when the whole vehicle runs at an idle speed and the electric quantity is sufficient, the whole vehicle is driven by a generator motor;
when the whole vehicle is braked, the generator motor is in a power generation state, and the kinetic energy of the vehicle is matched with the transmission through the second clutch to drive the generator motor to generate power through the gearbox and the second clutch;
when the electric quantity is insufficient, when the whole vehicle is in a stable working condition and when the whole vehicle runs at an idle speed, the whole vehicle is driven by the engine, and meanwhile, the generator motor is driven to generate electricity.
The invention has the beneficial effects that: the generator motor can be used as a generator and also can be used as a motor device of the motor, so that the volume of the motor can be reduced, the weight of a vehicle can be reduced, the generator motor can be driven to absorb energy through a gearbox under the conditions of braking and the like, and meanwhile, the kinetic energy recovery can be realized through an inverter assembly in a power manager; the engine and the generator motor are respectively provided with the first clutch and the second clutch, so that power input can be realized, and the functions of pure electric working condition running, engine direct-drive matching with motor power assistance, energy recovery and the like can be realized; the generator motor can simplify the whole structure, the generator and the motor do not need to exist in the transmission hybrid system at the same time, the generator motor provides a starting function for the engine, the engine structure is simplified, and the oil consumption is further reduced; through the during operation, be in a comparatively stable condition relatively with the engine, avoid frequent fuel feeding and fuel cut-off to cause the engine life-span to shorten, the fuel burning is incomplete, increases the emission scheduling problem of solid particulate matter.
Drawings
FIG. 1 is a schematic structural diagram of a hybrid powertrain system of a heavy truck in accordance with an embodiment of the present invention;
FIG. 2 is a schematic structural view of a heavy truck according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a chassis of a heavy truck according to an embodiment of the present invention;
description of reference numerals: 1. and (4) a storage battery.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1, a hybrid power system of a heavy truck includes a power module, a vehicle controller module, a transmission module, an engine and a generator-motor;
the power supply module comprises a power supply manager and a storage battery 1, wherein the power supply manager is electrically connected with the storage battery; an inverter component is arranged in the power supply manager;
the power supply manager is electrically connected with the vehicle control unit module, the speed change module, the engine and the generator motor respectively; the vehicle control unit module is electrically connected with the speed changing module and the engine respectively;
the speed changing module comprises a first clutch, a second clutch and a gearbox, and the engine is connected with the gearbox through the first clutch;
the engine comprises a flywheel, a gear meshed with the flywheel is arranged on the generator motor, and the generator motor is respectively connected with the flywheel and the gearbox through a second clutch.
From the above description, the beneficial effects of the present invention are: the generator motor can be used as a generator and also can be used as a motor device of the motor, so that the volume of the motor can be reduced, the weight of a vehicle can be reduced, the generator motor can be driven to absorb energy through a gearbox under the conditions of braking and the like, and meanwhile, the kinetic energy recovery can be realized through an inverter assembly in a power manager; the engine and the generator motor are respectively provided with the first clutch and the second clutch, so that power input can be realized, and the functions of pure electric working condition running, engine direct-drive matching with motor power assistance, energy recovery and the like can be realized; the generator motor can simplify the whole structure, the generator and the motor do not need to exist in the transmission hybrid system at the same time, the generator motor provides a starting function for the engine, the engine structure is simplified, and the oil consumption is further reduced; through the during operation, be in a comparatively stable condition relatively with the engine, avoid frequent fuel feeding and fuel cut-off to cause the engine life-span to shorten, the fuel burning is incomplete, increases the emission scheduling problem of solid particulate matter.
The cooling module comprises an air cooling assembly, a water cooling assembly, a temperature controller and a sensor, wherein the temperature controller is electrically connected with the sensor;
temperature sensors are respectively arranged on the engine, the generator motor, the gearbox and the storage battery;
the air cooling assembly comprises a fan, a main pipe and branch pipes, branch pipes are arranged on the engine, the generator motor, the gearbox and the storage battery, the branch pipes are communicated with the main pipe, and a flow valve is arranged between the branch pipes and the main pipe; the fan is positioned in the main pipe, and a filter screen is arranged at the air inlet end of the main pipe;
the water cooling assembly comprises a heat dissipation box, a heat exchange pipeline and a secondary water cooling circulation assembly which is respectively arranged on the engine, the generator motor, the gearbox and the storage battery, and the secondary water cooling circulation assembly comprises a water pump; and the secondary water-cooling circulation component is in circulation connection with the heat dissipation box through a heat exchange pipeline.
From the above description, it can be known that each component can be controlled to operate in an optimal temperature range through independent heat dissipation of each component, and thus the working efficiency is improved.
Further, the flow valve is an electromagnetic valve, the flow valve and the fan are respectively electrically connected with the power supply manager, and the temperature controller controls the opening degree of the electromagnetic valve, the rotating speed of the fan and the rotating speed of the water pump through data of the sensor.
Furthermore, the storage batteries are provided with a plurality of groups, and the plurality of groups of storage batteries are arranged on the chassis at the front end and the rear end of the heavy truck.
From the above description, it can be known that, through setting up the multiunit on the chassis of heavy truck's front and back both ends, through the counter weight, can reduce the oil consumption because the atress is even when can reducing the focus.
Further, be provided with the heat insulation layer on the surface of battery, the heat insulation layer has the enhancement layer outward.
As can be seen from the above description, the storage battery can be isolated from the outside by the provision of the heat insulating layer, so that the performance of the storage battery is prevented from being affected by the outside temperature, particularly in winter; through the enhancement layer, can realize the protection to heat insulation layer and inside battery, avoid going at a high speed in-process because the battery is punctureed and then lead to a series of problems such as catching fire under the high-speed condition to the flying sand stone.
Further, the storage battery has a minimum capacity of not less than 5% of the total capacity.
From the above description, through the setting of the minimum electric quantity, it can be guaranteed that the energy for starting the engine can still be possessed at the minimum electric quantity, and the vehicle is prevented from being broken down.
Furthermore, the power module further comprises a charging interface, and the charging interface is electrically connected with the power manager.
From the above description, through the setting of the charging interface, the input of the external energy can be realized to supplement the electric quantity of the storage battery.
The control method for the hybrid power system of the heavy truck comprises the following steps that the vehicle control unit module obtains and judges storage battery information through a power manager, and the control method comprises the following steps:
when the electric quantity is sufficient, the generator motor drives the vehicle to start; when the electric quantity is insufficient, the electric vehicle is driven by the engine;
when the engine needs to be started, the generator motor drives a gear on a generator motor shaft to be meshed with the flywheel through the first clutch, and the flywheel is driven to rotate so as to start the engine;
when the output efficiency of the whole vehicle needs to be improved and the electric quantity is sufficient, the engine and the generator motor are driven; when the electric quantity is insufficient, the electric vehicle is driven by the engine;
when the whole vehicle is in a stable working condition and the electric quantity is sufficient, the whole vehicle is driven by the generator motor and/or the engine;
when the whole vehicle runs at an idle speed and the electric quantity is sufficient, the whole vehicle is driven by a generator motor;
when the whole vehicle is braked, the generator motor is in a power generation state, and the kinetic energy of the vehicle is matched with the transmission through the second clutch to drive the generator motor to generate power through the gearbox and the second clutch;
when the electric quantity is insufficient, when the whole vehicle is in a stable working condition and when the whole vehicle runs at an idle speed, the whole vehicle is driven by the engine, and meanwhile, the generator motor is driven to generate electricity.
Further, the "power generation" includes: the generator motor is driven by the engine, the generator motor is driven to generate electricity through the gear engagement of the flywheel and the shaft of the generator motor through the second clutch, the sent electric quantity is transmitted to the storage battery through the inverter assembly in the power manager, charging is achieved, and when the storage battery is close to being full of electricity, the generator motor is separated from the engine and the gearbox through the second clutch.
Example one
A hybrid power system of a heavy truck comprises a power supply module, a vehicle control unit module, a speed change module, an engine and a generator motor; the generator motor can be used as a generator and also can be used as a motor.
The power supply module comprises a power supply manager and a storage battery, and the power supply manager is electrically connected with the storage battery; an inverter component is arranged in the power supply manager;
the power supply manager is electrically connected with the vehicle control unit module, the speed change module, the engine and the generator motor respectively; the vehicle control unit module is electrically connected with the speed changing module and the engine respectively;
the speed changing module comprises a first clutch, a second clutch and a gearbox, and the engine is connected with the gearbox through the first clutch; the gearbox is a double-input gearbox;
the engine comprises a flywheel, a gear meshed with the flywheel is arranged on the generator motor, and the generator motor is respectively connected with the flywheel and the gearbox through a second clutch.
The cooling module comprises an air cooling assembly, a water cooling assembly, a temperature controller and a sensor, wherein the temperature controller is electrically connected with the sensor;
temperature sensors are respectively arranged on the engine, the generator motor, the gearbox and the storage battery;
the air cooling assembly comprises a fan, a main pipe and branch pipes, branch pipes are arranged on the engine, the generator motor, the gearbox and the storage battery, the branch pipes are communicated with the main pipe, and a flow valve is arranged between the branch pipes and the main pipe; the fan is located in the main pipe, and a filter screen is arranged at the air inlet end of the main pipe.
The water cooling assembly comprises a heat dissipation box, a heat exchange pipeline and a secondary water cooling circulation assembly which is respectively arranged on the engine, the generator motor, the gearbox and the storage battery, and the secondary water cooling circulation assembly comprises a water pump; and the secondary water-cooling circulation component is in circulation connection with the heat dissipation box through a heat exchange pipeline.
The flow valve is an electromagnetic valve, the flow valve and the fan are respectively electrically connected with the power supply manager, and the temperature controller controls the opening degree of the electromagnetic valve, the rotating speed of the fan and the rotating speed of the water pump through data of the sensor.
The storage batteries are provided with a plurality of groups, and the plurality of groups of storage batteries are arranged on the chassis at the front end and the rear end of the heavy truck.
The outer surface of the storage battery is provided with a heat insulation layer, and a reinforcing layer is arranged outside the heat insulation layer.
The battery has a minimum charge of 8% of the total charge.
The power module further comprises a charging interface, the charging interface is electrically connected with the power manager, the charging interface is arranged on a shell of the vehicle, and a protective cover is arranged on the charging interface.
Example two
A control method for using the hybrid power system of the heavy truck according to the first embodiment, wherein the vehicle control unit module obtains and judges the battery information through a power manager, and the method comprises the following steps:
when the electric quantity is sufficient, the generator motor drives the vehicle to start; when the electric quantity is insufficient, the electric vehicle is driven by the engine;
when the engine needs to be started, the generator motor drives a gear on a generator motor shaft to be meshed with the flywheel through the first clutch, and the flywheel is driven to rotate so as to start the engine;
when the output efficiency of the whole vehicle needs to be improved and the electric quantity is sufficient, the engine and the generator motor are driven; when the electric quantity is insufficient, the electric vehicle is driven by the engine;
when the whole vehicle is in a stable working condition and the electric quantity is sufficient, the whole vehicle is driven by the generator motor and/or the engine;
when the whole vehicle runs at an idle speed and the electric quantity is sufficient, the whole vehicle is driven by a generator motor;
when the whole vehicle is braked, the generator motor is in a power generation state, and the kinetic energy of the vehicle is matched with the transmission through the second clutch to drive the generator motor to generate power through the gearbox and the second clutch;
when the electric quantity is not enough, when the whole vehicle is in a stable working condition and when the whole vehicle is in idle running, the engine is used for driving, the generator motor is driven to generate electricity, the engine is used for driving, meanwhile, the generator motor is driven to generate electricity through the gear engagement of the flywheel and the generator motor shaft through the second clutch, the sent electric quantity is transmitted to the storage battery through the inverter assembly in the power manager, charging is realized, and when the storage battery is close to being fully charged, the generator motor is simultaneously separated from the engine and the gearbox through the second clutch.
EXAMPLE III
A control method for using the hybrid power system of the heavy truck according to the first embodiment, wherein the vehicle control unit module obtains and judges the battery information through a power manager, and the method comprises the following steps:
when the electric quantity is sufficient, the generator motor directly drives the gearbox through the second clutch; when the electric quantity is insufficient, the engine directly drives the gearbox through the first clutch;
when the engine needs to be started, the generator motor drives a gear on a generator motor shaft to be meshed with the flywheel through the first clutch, and the flywheel is driven to rotate so as to start the engine;
when the whole vehicle needs to improve the output efficiency and the electric quantity is sufficient, the engine outputs through the first clutch, and meanwhile, the generator motor is driven to assist through the second clutch; when the electric quantity is insufficient, the generator motor is separated from the engine and the gearbox simultaneously through the second clutch;
when the whole vehicle is in a stable working condition and the electric quantity is sufficient, the whole vehicle is directly driven by the generator motor and/or the engine;
when the whole vehicle runs at an idle speed and the electric quantity is sufficient, the whole vehicle is driven by a generator motor;
when the whole vehicle is in a braking or downhill working condition, the generator motor is in a power generation state, and the kinetic energy of the vehicle is matched with the transmission through the second clutch to drive the generator motor to generate power through the transmission case and the second clutch;
when the electric quantity is not enough, when the whole vehicle is in a stable working condition and when the whole vehicle is in idle running, the whole vehicle is driven by the engine, meanwhile, the second clutch drives the generator motor to generate electricity through the gear engagement on the flywheel and the generator motor shaft, the sent electric quantity is transmitted to the storage battery through the inverter assembly in the power manager, charging is realized, and when the storage battery is close to being full of electricity, the generator motor is simultaneously separated from the engine and the gearbox through the second clutch.
In summary, according to the hybrid power system and the control method for the heavy truck provided by the invention, the generator motor can be used as a generator and also as a motor device for the motor, so that the volume of the motor can be reduced, the weight of the vehicle can be reduced, the generator motor can be driven by the gearbox to absorb energy under the conditions of braking and the like, and meanwhile, the kinetic energy can be recovered by the inverter assembly in the power manager; the engine and the generator motor are respectively provided with the first clutch and the second clutch, so that power input can be realized, and the functions of pure electric working condition running, engine direct-drive matching with motor power assistance, energy recovery and the like can be realized; the generator motor can simplify the whole structure, the generator and the motor do not need to exist in the transmission hybrid system at the same time, the generator motor provides a starting function for the engine, the engine structure is simplified, and the oil consumption is further reduced; through the during operation, be in a comparatively stable condition relatively with the engine, avoid frequent fuel feeding and fuel cut-off to cause the engine life-span to shorten, the fuel burning is incomplete, increases the emission scheduling problem of solid particulate matter.
Through the independent heat dissipation of each part, can control each part and keep working in the best temperature interval, and then promote work efficiency.
Through with the multiunit the battery sets up on the chassis at heavy truck's front and back both ends, through the counter weight, can reduce the focus when, because the atress is even can the oil consumption reduction.
The storage battery can be isolated from the outside by arranging the heat insulation layer, so that the influence of the outside temperature on the performance of the storage battery is avoided, particularly in winter; through the enhancement layer, can realize the protection to heat insulation layer and inside battery, avoid going at a high speed in-process because the battery is punctureed and then lead to a series of problems such as catching fire under the high-speed condition to the flying sand stone.
Through the setting of minimum electric quantity, can guarantee to possess the energy of starting the engine still at minimum electric quantity, avoid the vehicle to break down.
Through the setting of the interface that charges, can realize the input of external energy to the replenishment of battery electric quantity.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.

Claims (9)

1. The hybrid power system of the heavy truck is characterized by comprising a power supply module, a vehicle control unit module, a speed change module, an engine and a generator motor;
the power supply module comprises a power supply manager and a storage battery, and the power supply manager is electrically connected with the storage battery; an inverter component is arranged in the power supply manager;
the power supply manager is electrically connected with the vehicle control unit module, the speed change module, the engine and the generator motor respectively; the vehicle control unit module is electrically connected with the speed changing module and the engine respectively;
the speed changing module comprises a first clutch, a second clutch and a gearbox, and the engine is connected with the gearbox through the first clutch;
the engine comprises a flywheel, a gear meshed with the flywheel is arranged on the generator motor, and the generator motor is respectively connected with the flywheel and the gearbox through a second clutch;
when the electric quantity is sufficient, the generator motor drives the vehicle to start; when the electric quantity is insufficient, the electric vehicle is driven by the engine;
when the engine needs to be started, the generator motor drives a gear on a generator motor shaft to be meshed with the flywheel through the first clutch, and the flywheel is driven to rotate so as to start the engine;
when the output efficiency of the whole vehicle needs to be improved and the electric quantity is sufficient, the engine and the generator motor are driven; when the electric quantity is insufficient, the electric vehicle is driven by the engine;
when the whole vehicle is in a stable working condition and the electric quantity is sufficient, the whole vehicle is driven by the generator motor and/or the engine;
when the whole vehicle runs at an idle speed and the electric quantity is sufficient, the whole vehicle is driven by a generator motor;
when the whole vehicle is braked, the generator motor is in a power generation state, and the kinetic energy of the vehicle is matched with the transmission through the second clutch to drive the generator motor to generate power through the gearbox and the second clutch;
when the electric quantity is insufficient, when the whole vehicle is in a stable working condition and when the whole vehicle runs at an idle speed, the whole vehicle is driven by the engine, and meanwhile, the generator motor is driven to generate electricity.
2. The hybrid power system of a heavy truck according to claim 1, further comprising a cooling module comprising an air-cooled component, a water-cooled component, a temperature controller and a sensor, the temperature controller being electrically connected to the sensor;
temperature sensors are respectively arranged on the engine, the generator motor, the gearbox and the storage battery;
the air cooling assembly comprises a fan, a main pipe and branch pipes, branch pipes are arranged on the engine, the generator motor, the gearbox and the storage battery, the branch pipes are communicated with the main pipe, and a flow valve is arranged between the branch pipes and the main pipe; the fan is positioned in the main pipe, and a filter screen is arranged at the air inlet end of the main pipe;
the water cooling assembly comprises a heat dissipation box, a heat exchange pipeline and a secondary water cooling circulation assembly which is respectively arranged on the engine, the generator motor, the gearbox and the storage battery, and the secondary water cooling circulation assembly comprises a water pump; and the secondary water-cooling circulation component is in circulation connection with the heat dissipation box through a heat exchange pipeline.
3. The hybrid power system of a heavy truck according to claim 2, wherein the flow valve is a solenoid valve, the flow valve and the fan are electrically connected to a power manager, and the temperature controller controls the opening degree of the solenoid valve, the rotation speed of the fan and the rotation speed of the water pump according to data of the sensor.
4. The hybrid system for a heavy truck according to any one of claims 1 to 3, wherein the secondary batteries are provided in plural sets, and the plural sets are provided on the chassis at both front and rear ends of the heavy truck.
5. The hybrid system of a heavy truck according to claim 4, wherein the battery is provided with an insulating layer on an outer surface thereof, the insulating layer having a reinforcing layer thereon.
6. The hybrid system of a heavy truck according to any one of claims 1-3, wherein the battery has a minimum charge of no less than 5% of the total charge.
7. The hybrid system of any one of claims 1-3, wherein the power module further comprises a charging interface, the charging interface being electrically connected to the power manager.
8. A control method using the hybrid system of the heavy truck according to any one of claims 1 to 7, wherein the vehicle control unit module acquires and determines the battery information through a power manager, comprising:
when the electric quantity is sufficient, the generator motor drives the vehicle to start; when the electric quantity is insufficient, the electric vehicle is driven by the engine;
when the engine needs to be started, the generator motor drives a gear on a generator motor shaft to be meshed with the flywheel through the first clutch, and the flywheel is driven to rotate so as to start the engine;
when the output efficiency of the whole vehicle needs to be improved and the electric quantity is sufficient, the engine and the generator motor are driven; when the electric quantity is insufficient, the electric vehicle is driven by the engine;
when the whole vehicle is in a stable working condition and the electric quantity is sufficient, the whole vehicle is driven by the generator motor and/or the engine;
when the whole vehicle runs at an idle speed and the electric quantity is sufficient, the whole vehicle is driven by a generator motor;
when the whole vehicle is braked, the generator motor is in a power generation state, and the kinetic energy of the vehicle is matched with the transmission through the second clutch to drive the generator motor to generate power through the gearbox and the second clutch;
when the electric quantity is insufficient, when the whole vehicle is in a stable working condition and when the whole vehicle runs at an idle speed, the whole vehicle is driven by the engine, and meanwhile, the generator motor is driven to generate electricity.
9. The method of controlling a hybrid system of a heavy truck according to claim 8, wherein the "generating" includes: the generator motor is driven by the engine, the generator motor is driven to generate electricity through the gear engagement of the flywheel and the shaft of the generator motor through the second clutch, the sent electric quantity is transmitted to the storage battery through the inverter assembly in the power manager, charging is achieved, and when the storage battery is close to being full of electricity, the generator motor is separated from the engine and the gearbox through the second clutch.
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CN111959415B (en) * 2020-08-25 2022-07-29 徐州徐工矿业机械有限公司 Energy distribution system algorithm based on VCU control of whole vehicle
CN114248637B (en) * 2021-12-29 2024-06-07 东风重工(十堰)有限公司 Energy-saving environment-friendly extended-range heavy truck

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