CN116409137A - 6X4 plug-in type hybrid power tractor - Google Patents

6X4 plug-in type hybrid power tractor Download PDF

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Publication number
CN116409137A
CN116409137A CN202310117864.0A CN202310117864A CN116409137A CN 116409137 A CN116409137 A CN 116409137A CN 202310117864 A CN202310117864 A CN 202310117864A CN 116409137 A CN116409137 A CN 116409137A
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China
Prior art keywords
power
electric
engine
motor
hybrid
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CN202310117864.0A
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Chinese (zh)
Inventor
马磊
薛正成
吴东东
刘东冬
吴钱潮
高超
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Nanjing Sikaiqi Automobile Technology Co ltd
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Nanjing Sikaiqi Automobile Technology Co ltd
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Priority to CN202310117864.0A priority Critical patent/CN116409137A/en
Publication of CN116409137A publication Critical patent/CN116409137A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/44—Series-parallel type
    • B60K6/442—Series-parallel switching type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/26—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
    • B60K6/387—Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
    • B60K6/54—Transmission for changing ratio
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B60W20/20—Control strategies involving selection of hybrid configuration, e.g. selection between series or parallel configuration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B60W20/50—Control strategies for responding to system failures, e.g. for fault diagnosis, failsafe operation or limp mode
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Automation & Control Theory (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The invention provides a 6X4 plug-in hybrid power tractor, the hybrid power system of the invention is formed by coupling three power schemes, the three power schemes can be independently controlled, and can be standby power and auxiliary power mutually under special working conditions, the safety of the whole vehicle is improved, each path of VCU can be independently controlled, each path of power state can be calculated according to real-time road conditions, the optimal power scheme is matched, the system has more power combination modes compared with the conventional hybrid power system, can adapt to more complex use scenes, the optimal power matching scheme is achieved, the three-way power system ensures the powerful power of the whole vehicle, in addition, the double-motor electric drive axle has high integration and powerful power, the P2 power system formed by disc-type motors is more compact and scientific in chassis arrangement space, the electric control oil pump, the air pump and the cab air conditioning system get rid of dependence on an engine, the running is more silent, and the response is also more rapid.

Description

6X4 plug-in type hybrid power tractor
Technical Field
The invention relates to the field of new energy automobile design, in particular to a 6X4 plug-in hybrid power tractor.
Background
The energy-saving index of the hybrid power tractor is based on the minimum fuel consumption of the engine, and in the running process, the engine and the motor distribute power according to a set control scheme in the starting, ascending, descending and running processes so as to ensure that the engine and the motor are always kept in a high-efficiency area to be driven, thereby achieving the aim of minimum fuel consumption. However, most of the control schemes can only be optimized for one use scene at present, which is similar to the outstanding product characteristics of various brands of passenger cars when the passenger cars are popularized, and has the advantages of good power, suitability for climbing in mountain areas, good acceleration performance, no worry about high-speed overtaking, small wind resistance, light weight, more fuel saving and the like, and the control schemes are limited in fixed scenes. The tractor is used as a main logistics transport tool, and is supposed to be diversified and complicated in driving scenes, and has uncertainty, so that a single efficient control scheme cannot meet the requirements of economy and energy conservation in various scenes of logistics transport.
The tractor of 6X4 is two transaxle structures, and present hybrid power arrangement scheme is: the rear end of the engine is connected with the input end of the rear drive axle through a motor, a gearbox, a middle drive axle and a middle drive axle in sequence. The front axle is used as a steering axle, and the middle driving axle and the rear driving axle are used as driving axles. The power output by the engine and the motor is respectively output to the middle axle and the rear axle through the gearbox and the transmission shaft by an interaxial differential lock, and the defects are that only one motor is constrained by arrangement space, the power of the motor is smaller, the corresponding output power is weaker, in addition, the front axle and the rear axle depend on the transmission shaft to transmit power and cannot be controlled independently, and when one fault occurs in the whole power output chain, the whole vehicle cannot run.
The existing hybrid vehicle type power structure is a P2 power system formed by a single motor, batteries are arranged on two sides of a chassis frame, and the capacity of the batteries is limited due to the limitation of the space of the chassis. Therefore, the problems of insufficient power, insufficient cruising ability and the like exist, and in addition, although the conventional hybrid vehicle type has a pure electric mode state, the power sources of the steering oil pump and the inflating pump still need to rely on an engine as a power source and a heat source to start the heating, defrosting, demisting and other functions of the vehicle-mounted air conditioner, so that the real zero emission cannot be realized. Certain specific scenes requiring pure electric entry cannot be passed through. The convenience of logistics transportation is limited, and the transportation cost is increased.
Disclosure of Invention
In view of the above, the main object of the present invention is to provide a 6X4 plug-in hybrid traction vehicle which has more power combination modes than the conventional hybrid system, can adapt to more complex use situations, has strong power, is safe and reliable, has more compact and scientific chassis arrangement space, gets rid of the dependence on an engine by an electric oil pump, an air pump and a cab air conditioning system, has a silent running and has a quicker response.
The technical scheme is as follows:
a 6X4 plug-in hybrid traction vehicle comprising a powertrain configuration: the scheme adopts a driving force coupling type series-parallel hybrid power system, and the configuration of the driving force coupling type series-parallel hybrid power system is provided with two power sources, namely an internal combustion engine and a motor. The engine drives the driving wheel in the whole vehicle through the clutch, the P2 motor, the transmission and the middle driving axle, wherein the P2 motor can be independently driven to further improve the working efficiency of the engine, and the connection with the engine can be cut off to charge a power battery when the kinetic energy is recovered, so that the P4 motor of the rear driving axle is driven by the electric quantity at all times is ensured. Meanwhile, the P2 motor plays a role in starting the engine when the engine is in-between. The P4 motor is integrated on the rear axle and consists of a P4-motor I21 and a P4-motor II 25, and the two motors respectively drive the rear driving wheel after being decelerated through a 2-gear gearbox, a main reducer and the like integrated on the rear axle;
a power battery: as a hybrid vehicle type, the battery capacity is not required to be large, but in order to meet the power requirement of a power system, high discharge power is required.
A battery box group and a control system; this scheme adopts back formula arrangement, and 4 lithium manganate batteries are two-by-two a set of equipartitions in battery frame's first, two-layer, reduce the whole focus of frame. The VCU controller, the TCU controller, the BMS battery management system and the power distribution box of the power source are arranged on the left side of the third layer, and the P2 motor controller is arranged on the right side. The high and low voltage power supplies are spaced apart by a distance of approximately 1 meter. TMS thermal management unit is arranged on the left side of the fourth layer, and PDU is arranged on the right side. The arrangement of the left side and the right side of the high-voltage low-voltage circuit is not mutually interfered. The right side of the battery frame is provided with a cooling unit cooling fan. The frame is wrapped with the skin, and the TMS cooling water tank and the expansion water tank are hung outside the skin and are respectively arranged above the TMS thermal management unit and the TMS cooling fan.
The engine is an independent cooling system; the air conditioning system of the cab is cooled by an added electric compressor. The power battery is subjected to temperature control by a TMS thermal management unit; the heat dissipation of the P2 and P4 driving motors, the motor controller and the PDU is completed by the TMS cooling unit (the schematic diagram of the cooling system is shown below).
The engine is powered off in the fuel mode, and the engine+P2 motor system can directly output power or serve as a range extender to generate power in the range extender and the hybrid mode.
The steering system adopts an electric steering gear, an engine is not provided with an oil pump accessory, and an electric oil pump is added to the whole vehicle to serve as a steering oil pump. Is arranged above the vehicle frame between the battery frame and the cab.
And the braking system is an engine airless pump system, and an electric inflating pump is added to the whole vehicle to serve as a gas source of braking air pressure. The air pump is arranged in an air pump box at the left side of the frame, and the air storage cylinders are respectively arranged below the storage battery and at the central position of the frame.
The clutch and the gearbox are in the scheme, and the clutch is a connecting rod pneumatic type power distribution control system. The gearbox is in an AMT electric control mode. And convenience is provided for the whole vehicle electric control technology.
The P2 driving motor is an axial flux motor, which is a P2 driving motor, and the motor is more suitable for being arranged between an engine and a gearbox due to a flat structure. Saves chassis space and reduces the weight of the vehicle body.
The P4 electric drive axle adopts a double-motor, double-electric control and double-gearbox arrangement scheme of front and back integration of the axle. Wherein, motor controller, derailleur, gearshift fixed connection integrate in both sides around the axle housing, and the binding post lug direct connection of motor and controller, derailleur and motor integrated mounting are in cast aluminum alloy half shell, and the input shaft of derailleur passes through spline transmission with the output shaft of motor and is connected. And the output shaft of the speed changer is provided with a main reduction driving gear which is meshed and connected with a main reduction driven gear in the axle housing, so as to output power.
The power chassis arrangement scheme is as follows: the arrangement sequence of the scheme is as follows: the engine, the clutch, the P2 motor and the gearbox are connected with a differential mechanism of the middle axle through a middle axle transmission shaft. The front and rear sides of the rear axle are respectively integrated with a motor, a motor controller, a speed changer and a gear shifting mechanism. As an independent driving device, the rear axle is not connected with the middle axle through a transmission shaft.
Electronic differential: in the scheme, no transmission shaft is connected between the middle bridge and the P4 electric drive bridge, so as to ensure the rotation speed difference between the two driving shafts of the middle bridge and the P4 electric drive bridge, the middle bridge and the rear bridge respectively use an electronic differential system, and the rotation speed signals of the wheel speed sensor are collected and fed back to the power system to control the output, thereby realizing the differential.
The arrangement scheme of the independent electric oil pump, the air pump and the air conditioner comprises the following steps: the scheme adopts an independent electric steering oil pump to be arranged between a cab and a battery box. The independent electric inflating pump system is arranged in an air pump box beside the oil tank, the additionally arranged electric heating PTC and the water pump are arranged below the engine cooling fan, the condenser is provided with the independent electric fan which is arranged on the inner side of a pedal on the right side of the cab, and the independent electric air conditioner compressor is arranged below a frame on the left side of the engine.
As shown in fig. 1, 2 and 3, the invention provides a 6X4 hybrid power tractor, which has the characteristic that a middle axle driving axle and a rear axle P4 electric driving axle are independently driven to mutually assist. The specific implementation scheme is as follows: the hybrid power system consisting of the engine 9, the clutch 10, the P2 motor 11, the gearbox 12, the transmission shaft 13 and the middle drive axle 4 is added with the pure electric power system consisting of the P4 electric drive axle 5 and the power battery box 7. The hybrid power with multiple power modes is formed. The engine 9 has no air pump and oil pump functions, and an independent electric oil pump and an independent electric air pump are added. The P2 motor 11 is a driving motor, and is also used as a generator to recover and output electric energy. The middle drive axle 4 and the P4 electric drive axle 5 are connected through a middle transmission shaft without a conventional vehicle type, so that the P4 electric drive axle 5 is an independently controllable drive axle.
As shown in fig. 4 and 5, the P4 electric drive axle 5 integrates a dual motor, a dual controller, a dual gearbox and a dual gear shifting mechanism. The two gear shifting mechanisms are respectively distributed on two sides of the rear axle housing 20, wherein a first motor 21, a first motor controller 22, a first transmission 23 and a first gear shifting mechanism 24 are fixedly connected and integrated on the front side of the rear axle housing 20, a second motor 25, a second motor controller 27, a second transmission 26 and a second gear shifting mechanism 28 are fixedly connected and integrated on the rear side of the rear axle housing 20, the motor is directly connected with a wiring terminal of the controller, the transmission and the motor are integrally arranged in a cast aluminum alloy half-shell, and an input shaft of the transmission is connected with an output shaft of the motor through spline transmission. And the output shaft of the speed changer is provided with a main reduction driving gear which is meshed and connected with a main reduction driven gear in the axle housing, so as to output power.
As shown in fig. 6 and 7, the power battery box 7 is erected above the frame 19 behind the cab 6, and the power battery three 40, the power battery four 42, the power battery one 39 and the power battery two 41 are evenly arranged on the first layer and the second layer from bottom to top, and the batteries are arranged on the bottom layer to lower the mass center of the whole battery box so as to increase the stability during driving. The three layers of the three-layer leftmost arrangement of the automatic gearbox adjusting system TCU36, the battery management system BMS37, the whole vehicle controller VCU38 and the left-side arrangement of the low-voltage distribution box 31 are separated from the low-voltage distribution box 31 by approximately 1 meter by the P2 motor controller 35. The TMS cooling unit 34 is arranged on the rightmost side, and the service holes are reserved at the positions corresponding to the battery compartment skins of the TCU, VCU and BMS which are arranged on the leftmost side, so that the service is convenient. The P2 motor controller 35 is spaced from the low voltage distribution box 31 by approximately 1 meter, and arranges the low voltage and high voltage wire bundles on the left and right sides respectively, so that the low voltage and high voltage wire bundles are orderly arranged, and electromagnetic interference of the high voltage and low voltage wire bundles is avoided. The TMS heat management unit 30 is arranged on the left side of the fourth layer, the PDU high-voltage distribution box 32 is arranged on the right side, the TMS cooling unit 34 is arranged on the rightmost side, and the TMS expansion water tank 29 and the expansion water tank 33 for cooling are respectively hung above the TMS heat management unit 30 and the TMS cooling unit 34. The motor, the power battery, the PDU and the like are cooled and radiated through the TMS heat management cooling system, so that the radiating performance of the large three-electric system is effectively ensured.
The beneficial effects are as follows:
1. the tractor can realize a fuel oil operation mode, a pure electric operation mode, a range-extending operation mode and a mixed operation mode, the power combination of an engine, a P2 motor and a P4 electric drive bridge provides diversified possibilities for various operation modes, the tractor can adapt to various use scenes by changing a control program according to the requirements of real-time road conditions, and when switching to different transportation scenes according to logistics needs, the matched control program can be brushed and written through a remote OTA, so that a power matching mode can be flexibly switched, and the purpose of completing transportation tasks in the most economical power mode is achieved;
2. the middle driving axle is driven by the engine and the P2 motor, and the rear driving axle is driven by the front motor and the rear motor, wherein the middle driving axle and the rear driving axle can both independently provide power and can be combined together for power output, so that the problem of too small power of a single motor is solved, the power performance and the bearing performance of the whole vehicle are improved, and the power is strong; when one drive axle fails, the other drive axle can work independently, so that the risk of anchoring the vehicle is reduced, and the safety and reliability are improved;
3. the P4 drive axle is matched with two sets of motors, motor controllers and a transmission assembly, and the motors are directly connected with wiring terminals of the controllers, so that the loss of electric energy is reduced, electromagnetic interference is reduced, the cost is saved, and the overall quality is reduced; the two sets of motors, the motor controller and the transmission assembly can simultaneously or independently output power according to the requirements, and can alternately output supplementary torque when gear shifting is needed, so that the gear shifting is prevented from being blocked, and the safety and the comfort are improved; the power battery, the power management system, the three-electricity cooling system and the whole vehicle control system are arranged in the power battery box in a centralized way, so that the integration is high, the space utilization is reasonable, the modularization is convenient, and the universal popularization is realized;
4. the engine can be completely stopped in the pure electric operation mode, the operation of the vehicle is not influenced, the steering oil pump, the air compressor and the air conditioning system are all free from dependence on the engine, the fuel cost can be reduced, the economy is improved, the passing area of the vehicle is increased, the transportation is free from barriers, and the travel is unlimited;
5. the invention is a series-parallel hybrid power system, integrates the advantages of hybrid power and pure electric vehicles, and can realize pure electric and zero-emission running; the driving range of the vehicle can be increased through a mixed mode; the problem of the continuation of journey of pure electric vehicles and the high problem of oil consumption of traditional vehicle have effectively been solved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the tractor of the present invention;
FIG. 2 is a side view of the overall vehicle construction of the tractor of the present invention;
FIG. 3 is a plan view of the overall vehicle structure of the tractor of the present invention;
FIG. 4 is a schematic structural diagram of a P4 electrically driven bridge according to the present invention;
FIG. 5 is a top view of the P4 electrically driven bridge of the present invention;
FIG. 6 is a schematic view of the internal structure of the power battery box according to the present invention;
FIG. 7 is an interior side view of a power cell box of the present invention;
fig. 8 is a schematic diagram of a system of the TMS cooling unit in the present invention.
In the figure, a front axle, a 2-oil tank, a 3-electric air pump box, a 4-middle drive axle, a 5-P4 electric drive axle, a 5, 6-cab, a 7-power battery box, an 8-saddle, a 9-engine, a 10-clutch, an 11-P2 motor, a 12-gearbox, a 13-transmission shaft, a 14-urea box, a 15-double-row air storage cylinder, a 16-storage battery box, a 17-exhaust aftertreatment device, a 18-single-row air storage cylinder 18, a 19-frame, a 20-rear axle housing, a 21-motor I, a 22-motor controller I, a 23-transmission I, a 24-gear shifting mechanism I, a 25-motor II, a 26-transmission II, a 27-motor controller II, a 28-gear shifting mechanism II, a 29-TMS cooling water tank, a 30-TMS thermal management unit, a 31-low-voltage distribution box, a 32-PDU high-voltage distribution box, a 33-expansion water tank, a 34-TMS cooling unit, a 35-P2 motor controller, a 36-automatic gearbox regulating system TCU, a 37-battery management system BMS, a 38-battery management system VCU, a 39-power battery box I, a power frame II, a 43-power battery III, a power battery controller, and a 43-power frame III.
Detailed Description
As shown in fig. 1-8, a 6X4 plug-in hybrid traction vehicle comprises a vehicle body, wherein the vehicle body comprises a vehicle frame 19, a cab 6, a front axle 1, an oil tank 2, a saddle 8, a urea box 14, a storage battery box 16 and an exhaust aftertreatment device 17, and further comprises a driving force coupling type hybrid power system, wherein the driving force coupling type hybrid power system is configured with two power sources of an internal combustion engine and a motor, and comprises a hybrid power system and a pure electric power system;
as shown in fig. 1-3, the hybrid power system has the characteristics of middle axle driving and rear axle (P4 electric drive axle 5) driving, and the double axles are independently driven to assist each other, and the hybrid power system comprises an engine 9, a clutch 10, a P2 motor 11, a gearbox 12, a transmission shaft 13 and a middle drive axle 4; the engine 9 drives the driving wheels in the whole vehicle through the clutch 10, the P2 motor 11, the gearbox 12 and the middle drive axle 4.
In the scheme, the engine 9 is used for outputting power in a fuel mode, and the engine 9+P2 motor 11 system can directly output power in a range extender and a mixed mode, and can also be used as a range extender for generating power.
The P2 motor 11 in the scheme is not only a driving motor, but also is used as a generator to recover and output electric energy, the P2 motor 11 is an axial flux motor, the motor is more suitable for being arranged between the engine 9 and the gearbox 12 due to the flat structure, the space of a chassis is saved, the weight of a vehicle body is reduced, the P2 motor 11 can be independently driven to further improve the working efficiency of the engine 9, the connection with the engine 9 can be cut off to charge a power battery during kinetic energy recovery, and the P4 motor of a driving shaft after electric quantity driving is ensured at all times. Meanwhile, the P2 motor 11 plays a role of starting the engine 9 when the engine 9 is interposed.
In the scheme, the clutch 10 is a connecting rod pneumatic type power distribution control system. The gearbox 12 is an AMT electric control mode, and facilitates the whole vehicle electric control technology.
The pure electric power system comprises a rear drive axle and a power battery box 7, wherein the rear drive axle adopts a P4 electric drive axle 5; the P4 motor of the P4 electric drive axle 5 is integrated on the rear drive axle and consists of a first P4-motor 21 and a second P4-motor 25, and the two motors respectively drive the rear drive wheels after being decelerated through a 2-gear gearbox 12, a main reducer and the like integrated on the rear drive axle.
The tractor is provided with a fuel oil operation mode, a pure electric operation mode, a range-extending operation mode and a mixed operation mode;
when the tractor is in a fuel oil operation mode, the engine 9 is started, the clutch 10 is opened, the torque output by the engine 9 is output to the middle driving axle 4 through the transmission shaft 13 by the gearbox 12 to be driven, the P2 motor 11 charges four power batteries in the power battery box 7, and the P4 electric driving axle 5 can be in a driven state;
when the tractor is in a pure electric mode, the engine 9 is closed, the P4 electric drive axle 5 is started, the P4 electric drive axle 5 drives the middle drive axle 4, the clutch 10 is combined, and the P2 motor 11 is used as the auxiliary of the driving middle drive axle 4;
when the tractor is in a range-extending running mode, the P4 electric drive axle 5 outputs power to drive the vehicle to start, the middle drive axle 4 is in a driven state, the engine 9 is started when the electric quantity of the power battery is low, and the P2 motor 11 supplements electric energy for the power battery;
when the tractor is in a hybrid running mode, the P2 motor 11 is started, the middle drive axle 4 drives the vehicle to start, the engine 9 does not work, and when the speed of the vehicle reaches a certain requirement, the engine 9 is started, peak clipping and valley filling are performed after the optimal rotating speed is accessed, and the engine 9 is regulated to be always kept in the lowest oil consumption interval.
By forming a series-parallel hybrid power mode with both series and parallel and hybrid, the three power modes can adapt to various use scenes by changing control programs according to the requirements of real-time road conditions. According to logistics needs, when switching to different transportation scenes, the power matching mode can be flexibly switched through a remote OTA (over the air) flashing adaptive control program. Achieving the purpose of completing the transportation task in the most economical power mode;
the highly integrated P4 drive axle is used as a rear drive axle, a middle transmission shaft 13 of a conventional vehicle type is not arranged between the middle drive axle 4 and the rear drive axle, the rear drive axle is an independently controllable drive axle, the independent control is convenient, the double power driving of a middle bridge single motor and a rear bridge double motor is formed, the powerful power is provided for the whole vehicle, the problem of low power of the single motor is overcome, the driving safety is ensured, and the working efficiency is also improved.
As shown in fig. 4-5, the present tractor further includes a rear axle housing 20; the rear axle housing 20 includes two rear axle half-shells;
the front side and the rear side of the rear drive axle are respectively integrated with a corresponding motor, a motor controller, a transmission and a gear shifting mechanism; the rear axle housing 20 comprises two cast aluminum alloy half-shells, wherein a motor I21, a motor controller I22, a transmission I23 and a gear shifting mechanism I24 are fixedly connected to the front side of the rear axle housing 20, a motor II 25, a motor controller II 27, a transmission II 26 and a gear shifting mechanism II 28 are fixedly connected and integrated to the rear side of the rear axle housing 20, the two transmissions and the corresponding motors are respectively arranged in the corresponding rear axle aluminum alloy half-shells, and the two motors are connected with wiring terminals of the corresponding motor controllers; the input shafts of the two speed variators are in transmission connection with the output shafts of the corresponding motors through splines; the output shafts of the two transmissions are provided with main reduction driving gears which are in meshed driving connection with the corresponding main reduction driven gears in the rear axle housing 20, so as to output power.
The power chassis arrangement sequence in the scheme is as follows: the engine 9, the clutch 10, the P2 motor 11 and the gearbox 12 are connected with a differential mechanism of a middle axle through a middle axle transmission shaft 13.
As an independent driving device, a transmission shaft 13 is not connected between the rear driving axle and the middle driving axle, in order to ensure the rotation speed difference between the two driving shafts of the middle driving axle and the P4 electric driving axle 5, the middle driving axle and the rear driving axle respectively use an electronic differential system, and the rotation speed signals of a wheel speed sensor are collected and fed back to a power system to control output, so that the differential is realized.
As shown in fig. 6 and 7, the power battery is arranged in a back type, the power battery box 7 is mounted on the frame 19 behind the cab 6, the battery frame 43 is mounted in the power battery box 7, and the power battery is mounted in the battery frame 43 without being limited by the chassis space.
As a hybrid vehicle model, the battery capacity is not required to be large, but in order to meet the power requirement of a power system, higher discharge power is required, and the power battery of the scheme adopts a lithium manganate power battery, and 100kwh is taken as an energy storage element; the temperature of the power batteries is controlled by the TMS heat management unit 30, and the four lithium manganate batteries are respectively and uniformly distributed on the first layer and the second layer of the battery frame 43 in pairs, namely, a third power battery 40, a fourth power battery 42, a first power battery 39 and a second power battery 41, wherein the batteries are arranged on the bottom layer to reduce the mass center of the whole battery box, so that the stability in the driving process is improved; the third layer of the battery frame 43 is provided with a whole vehicle controller VCU38, an automatic gearbox adjusting system TCU36, a battery management system BMS37 and a low-voltage distribution box 31 on one side, the other side is provided with a P2 motor controller 35, the P2 motor controller 35 and the low-voltage distribution box 31 are separated by approximately 1 meter, and low-voltage and high-voltage wire bundles are respectively arranged on the left side and the right side, so that the electric magnetic interference of the high-voltage wire bundles and the low-voltage wire bundles is orderly avoided. The TMS thermal management unit 30 is arranged on the left side of the fourth layer of the battery frame 43, and the PDU high-voltage distribution box 32 is arranged on the other side; the arrangement of the left side and the right side of the high-voltage low-voltage circuit is not mutually interfered. The rightmost side of the battery frame 43 is provided with a TMS cooling unit 34, and a TMS cooling water tank 29 and an expansion water tank 33 for cooling are respectively hung above the TMS heat management unit 30 and the TMS cooling unit 34.
The battery frame 43 is wrapped with a skin, and an access hole is reserved at the corresponding position of the battery box skin, so that the maintenance is convenient.
The tractor also comprises an electrically heated PTC and an electric compressor; the added electric heating PTC and water pump are arranged under the cooling fan of the engine 9, and the condenser arrangement independent electric fan is arranged inside the pedal on the right side of the cab 6.
The electric compressor is arranged below a frame 19 on one side of the engine 9; the engine 9 is an independent cooling system; the air conditioning system of the cab 6 is cooled by an electric compressor.
The tractor further comprises an electric oil pump as a steering oil pump; the steering system adopts an electric steering gear; the engine 9 has no oil pump system; an electric oil pump is arranged on the frame 19 at a position between the battery box and the cab 6.
The tractor also comprises an electric inflating pump which is used as a gas source of braking air pressure; the engine 9 has no air pump system; the electric air pump is arranged in the electric air pump box 3 at the left side of the frame 19, and the air cylinders are respectively arranged below the storage battery and at the central position of the frame 19, wherein the air cylinders comprise a double-row air cylinder 15 and a single-row air cylinder 18. The method gets rid of the dependence on the energy of the engine 9 in the traditional fuel mode, becomes an independent electric energy system and improves the capacity of the power battery. The characteristics of the existing fuel mode of a trolley with strong power are realized, and the endurance requirement under the pure electric mode is met. And various working modes such as pure electric vehicle, range extension, hybrid power and the like are realized.
The tractor further comprises a TMS cooling unit 34; the heat dissipation of the driving motor (including the P2 motor and the P4 motor I and the motor II), the motor controllers and the PDU high-voltage distribution box is completed by the TMS cooling unit 34 for cooling and heat dissipation, as shown in FIG. 8, so that the heat dissipation performance of the large three-electric system is effectively ensured.
As shown in fig. 1 to 8, the working principle and flow of the invention are as follows:
when the engine 9 is started, the clutch 10 is opened, the torque output by the engine 9 is directly output to the intermediate drive axle 4 through the transmission shaft 13 via the gearbox 12 to be driven, at this time, the P2 motor 11 can be used as a generator to charge four power batteries in the power battery box 7, and the P4 electric drive axle 5 can be in a driven state at this time, which is a fuel oil operation mode.
When the engine 9 is turned off, the P4 electric drive axle 5 is started to drive, the clutch 10 is combined, and the P2 motor 11 is used as an aid to drive the middle drive axle 4. This is the pure electric mode of operation.
When the P4 electric drive axle 5 outputs power, the middle drive axle 4 is driven. The engine 9 is started when the power battery is low, and the P2 motor 11 is used as a generator to supplement electric energy. This is the extended range mode of operation.
When the P2 motor 11 is started to drive the vehicle to start, the engine 9 does not work, and when the vehicle speed reaches a certain requirement, the engine 9 is started, peak clipping and valley filling are carried out after the optimal rotation speed is accessed, and the engine 9 is regulated to be always kept in the lowest oil consumption interval. This is the hybrid mode of operation.
The combination of the engine 9, the P2 motor 11, the P4 electrically driven bridge 55 provides a diversified possibility for various operation modes. The independent driving of the middle driving axle 4 and the P4 electric driving axle 55 reduces the risk of vehicle anchoring and ensures the driving safety. Meanwhile, the power output of the 3 motors meets the requirement of customers on the power of the pure electric vehicle, and the defect of insufficient power of the single motor is overcome.
The invention is formed by coupling three power schemes, can perform combination of multiple power modes, performs data analysis on complex road conditions based on the combination to match with an optimal power scheme, forms a final control strategy, and performs remote program refreshing through the vehicle-mounted T-BOX so as to match with the optimal power in each transportation, thereby effectively improving the fuel saving rate.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. The utility model provides a 6X4 plug-in type hybrid traction vehicle, includes the automobile body, and the automobile body includes frame, driver's cabin, steering system, its characterized in that: the hybrid power system comprises a hybrid power system and a pure electric power system, wherein the hybrid power system comprises a hybrid power system and a pure electric power system;
the hybrid power system comprises an engine, a clutch, a P2 motor, a gearbox, a transmission shaft and a middle drive axle;
the pure electric power system comprises a rear drive axle and a power battery box, wherein the rear drive axle adopts a P4 electric drive axle;
the tractor is provided with a fuel oil operation mode, a pure electric operation mode, a range-extending operation mode and a mixed operation mode;
when the tractor is in a fuel oil operation mode, the engine is started, the clutch is opened, torque output by the engine is output to the middle drive axle through the transmission shaft to drive, the P2 motor charges four power batteries in the power battery box, and the P4 electric drive axle can be in a driven state;
when the tractor is in a pure electric mode, the engine is closed, the P4 electric drive bridge is started, the P4 electric drive bridge drives the middle drive bridge, the clutch is combined, and the P2 motor is used as the auxiliary of the middle drive bridge;
when the tractor is in a range-extending operation mode, the P4 electric drive bridge outputs power, the middle drive bridge is in a driven state, the engine is started when the electric quantity of the power battery is low, and the P2 motor supplements electric energy for the power battery;
when the tractor is in a hybrid running mode, the P2 motor is started to drive the vehicle to start, the engine does not work, and when the speed of the vehicle reaches a certain requirement, the engine is started, peak clipping and valley filling are performed after the engine is connected with the engine at an economic rotating speed, and the engine is regulated to be always kept in a set oil consumption interval.
2. The 6X4 plug-in hybrid traction vehicle of claim 1, wherein: the rear axle housing is also included; the rear axle housing comprises two rear axle half-shells;
the front side and the rear side of the rear drive axle are respectively integrated with a corresponding motor, a motor controller, a transmission and a gear shifting mechanism; the two speed variators and the corresponding motors are respectively arranged in the corresponding rear axle half shells, and the two motors are connected with wiring terminals of the corresponding motor controllers; the input shafts of the two speed variators are in transmission connection with the output shafts of the corresponding motors through splines; and the output shafts of the two speed variators are provided with main speed reduction driving gears which are in meshed transmission connection with the main speed reduction driven gears in the corresponding rear axle housings.
3. The 6X4 plug-in hybrid traction vehicle of claim 2, wherein: the middle drive axle and the rear drive axle adopt electronic differential systems; the electronic differential system is used for collecting the rotating speed signal of the wheel speed sensor and feeding back the rotating speed signal to the power system for controlling output.
4. The 6X4 plug-in hybrid traction vehicle of claim 1, wherein:
the power battery box is arranged on the frame behind the cab, and a battery frame is arranged in the power battery box;
the power battery is a lithium manganate power battery; the four lithium manganate batteries are respectively and uniformly distributed on the first layer and the second layer of the battery frame in a pair-by-pair mode; one side of a third layer of the battery frame is provided with a whole vehicle controller VCU, an automatic gearbox adjusting system TCU, a battery management system BMS and a low-voltage distribution box, and the other side of the third layer is provided with a P2 motor controller; one side of a fourth layer of the battery frame is provided with a TMS thermal management unit, and the other side is provided with a PDU; and a cooling unit radiator fan is arranged on one side of the battery frame, the battery frame is wrapped with a skin, and an expansion water tank and a TMS cooling water tank are hung outside the skin.
5. The 6X4 plug-in hybrid traction vehicle of claim 1, wherein: the motor-driven compressor is also included; the electric compressor is arranged below the frame at one side of the engine; the air conditioning system of the cab is cooled by an electric compressor.
6. The 6X4 plug-in hybrid traction vehicle of claim 4, wherein: the TMS cooling unit is also included; and the heat dissipation of the P2 motor, the motor controller and the PDU is completed by the TMS cooling unit.
7. The 6X4 plug-in hybrid traction vehicle of claim 1, wherein: the electric oil pump is also included; the steering system adopts an electric steering gear; the engine is provided with an oil-free pump system; the electric oil pump is arranged on the vehicle frame at a position between the battery frame and the cab.
8. The 6X4 plug-in hybrid traction vehicle of claim 1, wherein: the device also comprises an electric inflating pump; the engine is provided with an airless pump system; the electric inflating pump is arranged in an electric air pump box at one side of the frame, and the air storage cylinders are respectively arranged below the storage battery and at the central position of the frame.
9. The 6X4 plug-in hybrid traction vehicle of claim 4, wherein: the power battery is subjected to temperature control by a TMS thermal management unit.
CN202310117864.0A 2023-02-15 2023-02-15 6X4 plug-in type hybrid power tractor Pending CN116409137A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310117864.0A CN116409137A (en) 2023-02-15 2023-02-15 6X4 plug-in type hybrid power tractor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310117864.0A CN116409137A (en) 2023-02-15 2023-02-15 6X4 plug-in type hybrid power tractor

Publications (1)

Publication Number Publication Date
CN116409137A true CN116409137A (en) 2023-07-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310117864.0A Pending CN116409137A (en) 2023-02-15 2023-02-15 6X4 plug-in type hybrid power tractor

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Country Link
CN (1) CN116409137A (en)

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