CN112622643A - Fuel cell hydrogen energy automobile four-wheel drive driving system - Google Patents
Fuel cell hydrogen energy automobile four-wheel drive driving system Download PDFInfo
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- CN112622643A CN112622643A CN202011483887.6A CN202011483887A CN112622643A CN 112622643 A CN112622643 A CN 112622643A CN 202011483887 A CN202011483887 A CN 202011483887A CN 112622643 A CN112622643 A CN 112622643A
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- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 51
- 239000001257 hydrogen Substances 0.000 title claims abstract description 51
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 239000000446 fuel Substances 0.000 title claims abstract description 46
- 238000004891 communication Methods 0.000 claims abstract description 13
- 239000003638 chemical reducing agent Substances 0.000 claims description 14
- 239000003990 capacitor Substances 0.000 claims description 12
- 230000006698 induction Effects 0.000 claims description 6
- 230000001360 synchronised effect Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000009194 climbing Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/32—Control or regulation of multiple-unit electrically-propelled vehicles
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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
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/34—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
- B60K17/348—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having differential means for driving one set of wheels, e.g. the front, at one speed and the other set, e.g. the rear, at a different speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/40—Electric propulsion with power supplied within the vehicle using propulsion power supplied by capacitors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/70—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by fuel cells
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/42—Drive Train control parameters related to electric machines
- B60L2240/423—Torque
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2260/00—Operating Modes
- B60L2260/20—Drive modes; Transition between modes
- B60L2260/28—Four wheel or all wheel drive
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- 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
- Y02T10/64—Electric machine technologies in electromobility
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- 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
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- 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
- Y02T10/72—Electric energy management in electromobility
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- 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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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- 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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells
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- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Arrangement And Driving Of Transmission Devices (AREA)
Abstract
The invention provides a fuel cell hydrogen energy automobile four-wheel drive driving system, which mainly comprises: the system comprises a vehicle control unit, a front motor, a rear motor, a front motor controller, a rear motor controller and a power supply module; the vehicle control unit is respectively connected with other modules of the system through communication signal wires; the specific working process is as follows: the vehicle control unit acquires state information of each module and a vehicle driving mode, selects a power distribution control mode, further distributes driving torques of a front motor and a rear motor, and generates a power distribution instruction; the front motor controller and the rear motor controller control the front motor and the rear motor to consume the electric energy to generate power according to the power distribution instruction; the front and rear motors transmit the power to the vehicle tires through the front and rear drive shafts to drive the vehicle. The invention has the advantages of simple scheme, high control efficiency, high energy utilization rate, rich driving modes and good flexibility and practicability.
Description
Technical Field
The invention relates to the field of new energy automobile drive control, in particular to a fuel cell hydrogen energy automobile four-wheel drive driving system.
Background
The hydrogen fuel cell new energy automobile is taken as a branch of the new energy automobile field, and with the progress and popularization of the hydrogen production technology and the hydrogen fuel cell technology, the hydrogen fuel cell automobile is taken as an important pillar type industry development of the country.
In the current state of the art, the four-wheel drive driving system of the new energy automobile has low energy utilization efficiency and a single driving mode, and some systems cannot be well adapted to the hydrogen new energy automobile, so that the problems of improving the energy utilization efficiency of the driving system and improving the single driving mode are urgently needed to be solved.
Disclosure of Invention
The invention aims to provide a fuel cell hydrogen energy automobile four-wheel drive driving system, which solves the problems of low energy utilization efficiency and single driving mode of the traditional driving system.
The technical scheme of the invention is as follows: a fuel cell hydrogen energy automobile four-wheel drive driving system comprises: the system comprises a vehicle control unit, a front motor, a rear motor, a front motor controller, a rear motor controller, a power supply module, a front high-voltage distribution box, a rear high-voltage distribution box, a front driving shaft and a rear driving shaft;
the vehicle control unit is respectively connected with the power supply module, the front high-voltage distribution box, the rear high-voltage distribution box, the front motor controller and the rear motor controller through communication signal wires;
the front high-voltage distribution box is electrically connected with the front motor controller, the power supply module and the rear high-voltage distribution box through high-voltage wires respectively;
the rear high-voltage distribution box is electrically connected with the rear motor controller through a high-voltage wire;
the power supply module is used for generating electric energy;
the vehicle control unit is used for acquiring state information of the power supply module, the front high-voltage distribution box, the rear high-voltage distribution box, the front motor controller and the rear motor controller and a vehicle driving mode, selecting a power distribution control mode according to the state information and the vehicle driving mode, distributing driving torques of the front motor and the rear motor according to the power distribution control mode, and generating a power distribution instruction based on the power distribution control mode;
the front high-voltage distribution box and the rear high-voltage distribution box are used for distributing the electric energy to the front motor controller and the rear motor controller;
the front motor controller and the rear motor controller are used for controlling the front motor and the rear motor to consume the electric energy to generate power according to the power distribution instruction;
the front motor and the rear motor are used for transmitting the power to vehicle tires through the front driving shaft and the rear driving shaft so as to drive the vehicle.
Further, since the vehicle drives with a high demand for electric power, the energy source is divided into two major parts, namely, the power supply module comprises: the system comprises a power battery system, a super capacitor system and a hydrogen fuel cell system;
the hydrogen fuel cell system is used as a main energy source of the fuel cell hydrogen energy automobile four-wheel drive driving system, the power cell system and the super capacitor system are used as auxiliary energy sources of the fuel cell hydrogen energy automobile four-wheel drive driving system, and energy supply is provided under the conditions of large energy consumption of the fuel cell hydrogen energy automobile four-wheel drive driving system such as starting, urgent acceleration, climbing and the like.
Further, the vehicle drive mode includes: a normal mode, a sport mode and a power saving mode.
Further, according to the efficiency corresponding to the different rotating speeds and the driving torques of the front motor and the rear motor, the front motor and the rear motor are set to be three working areas: a high-efficiency operating region (first operating region), a high-driving-performance operating region (second operating region), and an intermediate operating region (third operating region).
Wherein the first operating interval: the comprehensive energy utilization efficiency of the motor and the motor controller working in the interval can be ensured to be higher according to the setting that the system efficiency of the motor and the motor controller is greater than the threshold value E1; a second working interval: the maximum torque is set according to the external characteristics of the motor, so that the output torque of the motor can be ensured to be larger; a third working interval: the motor torque control is performed based entirely on the operation intention of the driver, and the power reinforcement or the efficiency reinforcement processing is not performed.
Further, selecting a power distribution control mode according to the state information and a vehicle driving mode, and distributing the driving torques of the front motor and the rear motor according to the power distribution control mode specifically comprises:
(1) when the vehicle driving mode is a normal mode, the driving torque distribution of the front motor and the rear motor is specifically as follows:
if the rotating speed of the motor is less than 6000rpm, starting the rear motor, and carrying out torque loading on the rear motor in the middle working interval;
and if the rotating speed of the motor is more than or equal to 6000rpm, the front motor and the rear motor are started simultaneously, and the front motor and the rear motor are subjected to torque loading in the middle working interval.
(2) When the vehicle driving mode is a sport mode, the driving torque distribution of the front motor and the rear motor is specifically as follows:
starting a front motor and a rear motor simultaneously, wherein the front motor and the rear motor are subjected to torque loading in the high-driving-performance working interval;
(3) when the vehicle driving mode is the energy-saving mode, the driving torque distribution of the front motor and the rear motor is specifically as follows:
and starting a rear motor, wherein the rear motor is used for carrying out torque loading in the efficient working interval.
Furthermore, the four-wheel drive system further comprises: a front speed reducer, a front differential, a rear speed reducer, a rear differential;
the front motor, the front speed reducer, the front differential and the front driving shaft are connected through gears;
the rear motor, the rear speed reducer, the rear differential and the rear driving shaft are connected through gears.
Furthermore, the front motor adopts a low-power induction asynchronous motor, and the rear motor adopts a high-power permanent magnet synchronous motor.
Further, the hydrogen fuel cell system is provided at a front portion of a vehicle;
the front high-voltage distribution box, the power battery system and the super capacitor system are arranged in the middle of the vehicle;
the rear high-voltage distribution box is arranged at the rear part of the vehicle.
The technical scheme provided by the invention has the beneficial effects that: the four-wheel drive driving system of the fuel cell hydrogen energy automobile can well realize the driving of the fuel cell hydrogen energy automobile, and has the advantages of high energy utilization rate, rich driving modes, good flexibility and practicability.
Drawings
FIG. 1 is a schematic diagram of a four-wheel drive system of a fuel cell hydrogen vehicle according to an embodiment of the present invention;
FIG. 2 is a control schematic diagram of a fuel cell hydrogen energy automobile four-wheel drive driving system in an embodiment of the invention;
fig. 3 is a comparison graph of idle resistance moments of front and rear motors of a four-wheel drive driving system of a fuel cell hydrogen vehicle in the embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be further described with reference to the accompanying drawings.
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The four-wheel drive driving system of the existing new energy automobile is low in energy utilization efficiency and single in driving mode, and part of the system can not be well adapted to the hydrogen new energy automobile.
Referring to fig. 1, fig. 1 is a schematic diagram of a four-wheel drive driving system of a fuel cell hydrogen energy vehicle according to an embodiment of the present invention, and the present invention provides a four-wheel drive driving system of a fuel cell hydrogen energy vehicle, including: the hybrid electric vehicle comprises a vehicle control unit 23, a front motor controller and front motor module 21, a front speed reducer and front differential module 22, a front drive shaft 31, a power battery system 26, a super capacitor system 26, a hydrogen fuel cell system 24, a front high-voltage distribution box 25, a rear high-voltage distribution box 28, a rear motor controller and rear motor module 29, a rear speed reducer and rear differential module 30 and a rear drive shaft 32.
The vehicle control unit 23, the front motor control and motor 21, the power battery system 26, the super capacitor system 27, the hydrogen fuel cell system 24, the front high-voltage distribution box 25, the rear high-voltage distribution box 28 and the rear motor control and rear motor module 29 all comprise ECU modules; and the ECU modules of the systems are respectively connected to a CAN communication trunk of the four-wheel drive system, so that information transmission among the ECU modules of the four-wheel drive system of the hydrogen energy automobile is realized.
Referring to fig. 2, fig. 2 is a schematic diagram of a control scheme of a four-wheel drive driving system of a fuel cell hydrogen energy automobile according to an embodiment of the present invention, a hydrogen fuel cell system 24 sends hydrogen fuel cell state information 2 to a driving system CAN communication trunk, a power cell system 26 sends power cell state information 3 to the driving system CAN communication trunk, a super capacitor system 27 sends super capacitor state information 4 to the driving system CAN communication trunk, a front high voltage distribution box 25 sends front high voltage distribution box state information 5 to the driving system CAN communication trunk, a rear high voltage distribution box 28 sends rear high voltage distribution box state information 6 to the driving system CAN communication trunk, a front motor controller and a front motor module 21 send front motor state information 7 to the driving system CAN communication trunk, a rear motor controller and a rear motor module 29 send rear driving motor state information 8 to the driving system CAN communication trunk, the vehicle control unit 23 obtains the information from the drive system CAN communication trunk, and comprehensively processes the information through accelerator information, brake information and drive mode switch state information, and finally calculates reasonable power distribution control information 1 and sends the reasonable power distribution control information to the drive system CAN communication trunk, and generates a control instruction based on the power distribution control information, and after receiving the control information 1, the front and rear motor controllers and the front and rear motor systems execute corresponding operations according to the control instruction, and finally realizes reasonable power distribution and higher energy utilization efficiency of the fuel cell hydrogen energy vehicle four-wheel drive system.
The front motor and the front speed reducer, the front speed reducer and the front differential mechanism, the front differential mechanism and the front driving shaft 31, the rear motor and the rear speed reducer, the rear speed reducer and the rear differential mechanism, and the rear differential mechanism and the rear driving shaft 32 are directly driven in a gear mechanical connection mode, driving force is finally transmitted to tires, and driving control of the fuel cell hydrogen energy automobile four-wheel drive driving system is finally achieved.
The accelerator, the brake, the driving mode switch and other components are all driver operation components, wherein the driving mode switch has three states, and the state of the driving mode switch is acquired through a hard-wire acquisition signal wire of the vehicle controller 23. The driving intention information of the driver is recognized through the state of the driving mode switch, so that three different driving modes are designed according to different driving requirements.
The first mode is as follows: normal mode;
and a second mode: sport mode;
and a third mode: ECO power saving mode.
In order to improve the energy utilization efficiency of the four-wheel drive driving system and reasonably and effectively distribute power, the front motor controller and the motor 21 adopt low-power induction asynchronous motors, and the rear motor controller and the motor 29 adopt high-power permanent magnet synchronous motors. Wherein, mainly used PMSM's key feature: the highest efficiency is high, the no-load resistance moment is large, the power density is high, and the cost is high; the induction asynchronous motor is mainly characterized in that: the highest efficiency is lower, the no-load resistance moment is small, the power density is low, and the cost is low.
Referring to fig. 3, fig. 3 is a comparison diagram of idle resistance moments of front and rear motors of a fuel cell hydrogen energy automobile four-wheel drive driving system in an embodiment of the present invention, as can be seen from fig. 3, the idle resistance moment of a permanent magnet synchronous motor is much larger than the idle resistance moment of an induction asynchronous motor at the same rotation speed, so that the energy consumed by driving the permanent magnet synchronous motor at the same rotation speed is much larger than that consumed by driving the induction asynchronous motor at the same rotation speed in an idle state of the motor.
And setting a high-efficiency working interval, a high-driving-performance working interval and a middle working interval of the rear motor according to the system efficiency under different rotating speeds and different torques.
When the driving mode switch state is the first mode, that is, the mode is the Normal mode, and after the vehicle control unit 23 recognizes the first mode, the power distribution scheme is as follows: when the rotating speed of the motor is less than 6000rpm, only the rear motor is started at the moment, the vehicle controller 23 carries out torque loading according to a middle working interval in a Map of system efficiency Map of the rear motor controller and the motor 21, driving performance is guaranteed, economic performance is considered, the front motor is dragged and rotated by the rear motor at the moment, no-load resisting moment needs to be overcome, and extremely small energy is consumed; when the rotating speed of the motor is more than or equal to 6000rpm, the front motor and the rear motor are started at the same time, and the vehicle control unit 23 carries out torque loading according to the front motor controller and the rear motor controller and the middle working interval in the motor system efficiency Map, so that the vehicle has good power performance and energy utilization efficiency under the medium-high speed condition.
When the driving mode switch state is the mode two, that is, the mode is the Sport mode mentioned above, and at this time, after the vehicle control unit 23 recognizes the mode, the power distribution scheme is as follows: no matter the rotating speed of the motor is, the front motor and the rear motor are started at the same time, and the vehicle control unit 23 loads torque according to the high-driving-performance working interval in the efficiency Map of the front motor controller, the rear motor controller and the motor system; at the moment, the driving acceleration performance of the four-wheel drive system can be utilized to the maximum extent, and the driving feeling is improved.
When the driving mode switch state is the third mode, that is, the mode is the ECO energy saving mode, and after the vehicle control unit 23 recognizes the mode, the power distribution scheme is as follows: no matter the rotating speed of the motor is, only the rear motor is started at the moment, the vehicle control unit 23 carries out torque loading according to the rear motor controller and the high-efficiency working region in the motor system efficiency Map, at the moment, the front motor is dragged and rotated by the rear motor, no-load resistance torque needs to be overcome, and extremely small energy is consumed; the energy utilization efficiency of the four-wheel drive system can be improved to the maximum extent.
Because the four-wheel drive driving system has higher requirement on energy, the energy source of the four-wheel drive driving system of the hydrogen energy automobile is divided into two parts, namely a hydrogen fuel cell system 24, a power cell system 26 and a super capacitor system 27; the hydrogen fuel cell system 24 is used as a main energy source of the four-wheel drive driving system of the hydrogen vehicle, and the power cell system 26 and the super capacitor system 27 are used as auxiliary energy sources of the four-wheel drive driving system of the hydrogen vehicle, so that energy supply is provided under the conditions of large energy consumption, such as starting, rapid acceleration, climbing and the like of the four-wheel drive driving system of the hydrogen vehicle.
The technical scheme provided by the embodiment of the invention has the following beneficial effects: the four-wheel drive driving system of the fuel cell hydrogen energy automobile can well realize the driving of the fuel cell hydrogen energy automobile, and has the advantages of high energy utilization rate, rich driving modes, good flexibility and practicability.
In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.
The features of the embodiments and embodiments described herein above may be combined with each other without conflict.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. A fuel cell hydrogen energy automobile four-wheel drive driving system is characterized by comprising: the system comprises a vehicle control unit, a front motor, a rear motor, a front motor controller, a rear motor controller, a power supply module, a front high-voltage distribution box, a rear high-voltage distribution box, a front driving shaft and a rear driving shaft;
the vehicle control unit is respectively connected with the power supply module, the front high-voltage distribution box, the rear high-voltage distribution box, the front motor controller and the rear motor controller through communication signal wires;
the front high-voltage distribution box is electrically connected with the front motor controller, the power supply module and the rear high-voltage distribution box through high-voltage wires respectively;
the rear high-voltage distribution box is electrically connected with the rear motor controller through a high-voltage wire;
the power supply module is used for generating electric energy;
the vehicle control unit is used for acquiring state information of the power supply module, the front high-voltage distribution box, the rear high-voltage distribution box, the front motor controller and the rear motor controller and a vehicle driving mode, selecting a power distribution control mode according to the state information and the vehicle driving mode, distributing driving torques of the front motor and the rear motor according to the power distribution control mode, and generating a power distribution instruction based on the power distribution control mode;
the front high-voltage distribution box and the rear high-voltage distribution box are used for distributing the electric energy to the front motor controller and the rear motor controller;
the front motor controller and the rear motor controller are used for controlling the front motor and the rear motor to consume the electric energy to generate power according to the power distribution instruction;
the front motor and the rear motor are used for transmitting the power to vehicle tires through the front driving shaft and the rear driving shaft so as to drive the vehicle.
2. The fuel cell hydrogen energy automobile four-wheel drive driving system according to claim 1, wherein the power supply module comprises: the system comprises a power battery system, a super capacitor system and a hydrogen fuel cell system;
the fuel cell system is used as a main power supply source;
and the power battery system and the super capacitor system are used as auxiliary power supply energy sources.
3. The fuel cell hydrogen-powered automobile four-wheel drive system according to claim 1, wherein the vehicle drive mode includes: a normal mode, a sport mode and a power saving mode.
4. The fuel cell hydrogen vehicle four-wheel drive system according to claim 3, wherein the front motor and the rear motor are each set to three operating regions according to driving torque loading efficiency: a first working interval, a second working interval and a third working interval.
5. The fuel cell hydrogen energy automobile four-wheel drive system according to claim 4, wherein a power distribution control mode is selected according to the state information and a vehicle driving mode, and the driving torques of the front motor and the rear motor are distributed according to the power distribution control mode, specifically comprising:
when the vehicle driving mode is a normal mode, the driving torque distribution of the front motor and the rear motor is specifically as follows:
if the rotating speed of the motor is less than 6000rpm, starting the rear motor, and carrying out torque loading on the rear motor in the third working interval;
if the rotating speed of the motor is more than or equal to 6000rpm, the front motor and the rear motor are started simultaneously, and the front motor and the rear motor are subjected to torque loading in the third working interval;
when the vehicle driving mode is a sport mode, the driving torque distribution of the front motor and the rear motor is specifically as follows:
starting a front motor and a rear motor simultaneously, and carrying out torque loading on the front motor and the rear motor in the second working interval;
when the vehicle driving mode is the energy-saving mode, the driving torque distribution of the front motor and the rear motor is specifically as follows:
and starting the rear motor, and carrying out torque loading on the rear motor in the first working interval.
6. The fuel cell hydrogen vehicle four-wheel drive system according to claim 1, wherein the fuel cell hydrogen vehicle four-wheel drive system further comprises: a front speed reducer, a front differential, a rear speed reducer, a rear differential;
the front motor, the front speed reducer, the front differential and the front driving shaft are connected through gears;
the rear motor, the rear speed reducer, the rear differential and the rear driving shaft are connected through gears.
7. The fuel cell hydrogen-powered automobile four-wheel drive system as claimed in claim 1, wherein the front motor is a low-power induction asynchronous motor, and the rear motor is a high-power permanent magnet synchronous motor.
8. The fuel cell hydrogen powered automotive four-wheel drive system according to claim 2, characterized in that the hydrogen fuel cell system is disposed at the front of a vehicle;
the front high-voltage distribution box, the power battery system and the super capacitor system are arranged in the middle of the vehicle;
the rear high-voltage distribution box is arranged at the rear part of the vehicle.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113147627A (en) * | 2021-04-19 | 2021-07-23 | 黄冈格罗夫氢能汽车有限公司 | System and method for acquiring rotating speed of hydrogen energy automobile by sensing unmanned position |
| CN114312297A (en) * | 2022-02-24 | 2022-04-12 | 深圳市联兆电子有限公司 | Range-extending type electric vehicle power system |
| WO2024092780A1 (en) * | 2022-11-04 | 2024-05-10 | 华为技术有限公司 | Control method and device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010111881A1 (en) * | 2009-04-01 | 2010-10-07 | 奇瑞汽车股份有限公司 | Power system for hybrid automobile and control method thereof |
| CN109915298A (en) * | 2019-02-28 | 2019-06-21 | 武汉理工大学 | A kind of control method of hybrid electric vehicle engine quick start |
| CN110562256A (en) * | 2019-08-19 | 2019-12-13 | 武汉格罗夫氢能汽车有限公司 | control method of hydrogen energy automobile torque management system |
| CN110588366A (en) * | 2019-09-10 | 2019-12-20 | 东风汽车集团有限公司 | Hub motor distributed time-sharing four-wheel-drive electric automobile chassis configuration, four-wheel-drive electric automobile and control method |
| CN110605977A (en) * | 2019-09-04 | 2019-12-24 | 武汉格罗夫氢能汽车有限公司 | Fuel cell energy management system of hydrogen energy automobile |
| CN211592301U (en) * | 2019-08-09 | 2020-09-29 | 武汉格罗夫氢能汽车有限公司 | Hydrogen energy vehicle power-on and power-off control device capable of automatically switching fuel and electricity in hybrid mode |
| CN214929031U (en) * | 2020-12-16 | 2021-11-30 | 武汉格罗夫氢能汽车有限公司 | Fuel cell hydrogen energy automobile four-wheel drive driving system |
-
2020
- 2020-12-16 CN CN202011483887.6A patent/CN112622643B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010111881A1 (en) * | 2009-04-01 | 2010-10-07 | 奇瑞汽车股份有限公司 | Power system for hybrid automobile and control method thereof |
| CN109915298A (en) * | 2019-02-28 | 2019-06-21 | 武汉理工大学 | A kind of control method of hybrid electric vehicle engine quick start |
| CN211592301U (en) * | 2019-08-09 | 2020-09-29 | 武汉格罗夫氢能汽车有限公司 | Hydrogen energy vehicle power-on and power-off control device capable of automatically switching fuel and electricity in hybrid mode |
| CN110562256A (en) * | 2019-08-19 | 2019-12-13 | 武汉格罗夫氢能汽车有限公司 | control method of hydrogen energy automobile torque management system |
| CN110605977A (en) * | 2019-09-04 | 2019-12-24 | 武汉格罗夫氢能汽车有限公司 | Fuel cell energy management system of hydrogen energy automobile |
| CN110588366A (en) * | 2019-09-10 | 2019-12-20 | 东风汽车集团有限公司 | Hub motor distributed time-sharing four-wheel-drive electric automobile chassis configuration, four-wheel-drive electric automobile and control method |
| CN214929031U (en) * | 2020-12-16 | 2021-11-30 | 武汉格罗夫氢能汽车有限公司 | Fuel cell hydrogen energy automobile four-wheel drive driving system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113147627A (en) * | 2021-04-19 | 2021-07-23 | 黄冈格罗夫氢能汽车有限公司 | System and method for acquiring rotating speed of hydrogen energy automobile by sensing unmanned position |
| CN114312297A (en) * | 2022-02-24 | 2022-04-12 | 深圳市联兆电子有限公司 | Range-extending type electric vehicle power system |
| WO2024092780A1 (en) * | 2022-11-04 | 2024-05-10 | 华为技术有限公司 | Control method and device |
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