CN114954040A - New energy automobile power system and control method thereof - Google Patents
New energy automobile power system and control method thereof Download PDFInfo
- Publication number
- CN114954040A CN114954040A CN202210812857.8A CN202210812857A CN114954040A CN 114954040 A CN114954040 A CN 114954040A CN 202210812857 A CN202210812857 A CN 202210812857A CN 114954040 A CN114954040 A CN 114954040A
- Authority
- CN
- China
- Prior art keywords
- gear
- new energy
- power system
- energy automobile
- drive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000004606 Fillers/Extenders Substances 0.000 claims description 41
- 238000002485 combustion reaction Methods 0.000 claims description 30
- 230000005611 electricity Effects 0.000 claims description 7
- 230000007547 defect Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000002054 transplantation Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009510 drug design Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Images
Classifications
-
- 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
- B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
-
- 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
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/02—Arrangement or mounting of electrical propulsion units comprising more than one electric motor
-
- 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
- B60K17/02—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of clutch
-
- 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
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
-
- 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
- B60K23/00—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for
- B60K23/08—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for changing number of driven wheels, for switching from driving one axle to driving two or more axles
-
- 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
- B60K23/00—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for
- B60K23/08—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for changing number of driven wheels, for switching from driving one axle to driving two or more axles
- B60K2023/085—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for changing number of driven wheels, for switching from driving one axle to driving two or more axles automatically actuated
- B60K2023/0858—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for changing number of driven wheels, for switching from driving one axle to driving two or more axles automatically actuated with electric means, e.g. electro-hydraulic means
-
- 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
Abstract
The invention belongs to a new energy automobile power system in the technical field of new energy automobiles, and further relates to a control method of the new energy automobile power system. New energy automobile driving system increase journey ware (2) connect gear II (8), gear V (12) is connected in clutch (3), front axle (6) is connected in gear V (12), gear II (8) are connected through gear I (7) in generator (1), rear axle (10) is connected through gear III (9) and gear IV (11) in driving motor (4), battery (5) are connected respectively in generator (1) and driving motor (4), the automobile body is connected in front axle (6) and rear axle (10). According to the new energy automobile power system and the control method thereof, the four-wheel drive mode is realized by reasonably utilizing the double-motor system, so that the power system can conveniently and reliably realize mode switching, the power performance and the economy are both considered, and meanwhile, the requirements of low cost and high power performance are met.
Description
Technical Field
The invention belongs to the technical field of new energy automobiles, and particularly relates to a new energy automobile power system and a control method of the new energy automobile power system.
Background
The new energy pure electric vehicle mainly depends on a power battery as a whole vehicle source, a motor and a control system drive wheels to run, and compared with a fuel vehicle, the new energy pure electric vehicle has the advantages of energy conservation, emission reduction and the like, but the rapid development of the new energy pure electric vehicle is restricted due to the fatal problems of short endurance mileage, low energy supplementing speed, high four-wheel drive cost and the like. The main disadvantages of the current hybrid system are as follows: 1. the whole system has low efficiency, and the electric energy generated by the generator has long transmission path and high loss; 2. a dual motor system, typically with only one motor for driving; 3. the internal combustion engine, the generator and the driving motor cannot output power at the same time, so that power redundancy is caused but the functions cannot be realized; 4. at least three motors are used for realizing four-wheel drive; therefore, the solutions in the prior art cannot effectively meet the performance requirements.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides a simple structure, to the problem that there is the defect in present new forms of energy pure electric vehicles driving system, carry out rational design to the driving system of new forms of energy extended range electric motor car, the two motor systems of rational utilization realize the four-wheel drive mode for driving system can conveniently reliably realize the mode switch, compromise dynamic property and economic nature requirement, satisfy low in manufacturing cost simultaneously, can satisfy the new forms of energy automobile driving system of the requirement of high dynamic property again.
To solve the technical problems, the invention adopts the technical scheme that:
the invention relates to a new energy automobile power system, wherein a range extender is connected with a gear II, a clutch is connected with a gear V, the gear V is connected with a front axle, a generator is connected with the gear II through the gear I, a driving motor is connected with a rear axle through a gear III and a gear IV, the generator and the driving motor are respectively connected with a battery, and the front axle and the rear axle are connected with an automobile body.
The range extender and the generator form a range extending system through a gear II and a gear I, and the range extender is an internal combustion engine.
The clutch is set to be a structure capable of controlling the on-off of the range extender and the front driving shaft of the front axle through connecting or disconnecting the connection condition of the gear V and the gear II, and the driving motor is connected with the rear driving shaft of the rear axle.
The new energy automobile power system is set to be capable of realizing switching between a pure electric mode and a range extending mode and between two-wheel drive and four-wheel drive by starting/stopping the range extender.
When the SOC of the new energy automobile power system is higher than a set value or in a power mode, the clutch is set to be in a combined state, the internal combustion engine and the generator are connected with a driving axle gear of the front axle along the gear II, the clutch and the gear V to drive the front driving shaft, and the driving motor is set to be capable of driving a rear driving shaft of the rear axle through the gear III and the gear IV to realize the structure that the whole automobile enters the electric four-wheel drive mode.
When the new energy automobile power system is in a pure electric mode, the clutch is set to be in a disengagement state, the internal combustion engine is flamed out, the generator is not moved, the driving motor is set to be a rear driving shaft capable of driving the rear axle through the gear III and the gear IV, and the whole automobile is in a structure of a two-drive mode.
When the new energy automobile power system is in the range extending mode, the clutch is set to be in a disengaging state, the range extending device is ignited to drive the generator to generate electricity, and the range extending device is set to be capable of driving a front driving shaft of a front axle through the gear II and the gear V, so that the whole automobile enters a two-wheel driving mode.
The generator and the range extender are arranged in parallel, and the range extender and a front driving shaft of the front axle are arranged in parallel. The driving motor is arranged in parallel with a rear driving shaft of the rear axle.
The invention also relates to a control method of the new energy automobile power system, which has simple steps, reasonably designs the power system of the new energy extended range electric vehicle aiming at the problem of the defects of the power system of the existing new energy pure electric vehicle, reasonably utilizes the double-motor system to realize the four-wheel drive mode, ensures that the power system can conveniently and reliably realize the mode switching, gives consideration to the requirements of power performance and economy, and simultaneously meets the requirements of low manufacturing cost and high power performance.
The control method of the new energy automobile power system comprises the following control steps:
s1, when the SOC of a new energy automobile power system is higher than a set value or in a power mode, a clutch is set to be in a combined state, an internal combustion engine and a generator are connected with a driving axle gear of a front axle along a gear II, the clutch and a gear V to drive a front driving axle, and a driving motor is set to be a rear driving axle capable of driving a rear axle through a gear III and a gear IV to realize that the whole automobile enters an electric four-wheel drive mode;
s2, when the power system of the new energy automobile needs to be in a pure electric mode, the clutch is in a disengaged state, the internal combustion engine is flamed out, the generator is not moved, and the driving motor drives the rear driving shaft of the rear axle through the gear III and the gear IV, so that the whole automobile enters a two-drive mode;
and S3, the clutch is in a disengaged state, the range extender is ignited to drive the generator to generate power, and the range extender drives the front driving shaft of the front axle through the gear II and the gear V, so that the whole vehicle enters a two-wheel driving mode.
By adopting the technical scheme of the invention, the working principle and the beneficial effects are as follows:
according to the new energy automobile power system and the control method thereof, the new energy automobile power system realizes switching between a pure power mode and a range extending mode and between two-wheel drive and four-wheel drive by starting/stopping the range extender. When the power system of the new energy automobile needs to be in a pure electric mode, the clutch is in a disengaged state, the internal combustion engine is flamed out, the generator is not moved, and the driving motor drives the rear driving shaft of the rear axle through the gear III and the gear IV, so that the whole automobile enters a two-drive mode; when the power system of the new energy automobile needs to be in a pure electric mode, the clutch is in a disengaged state, the internal combustion engine is flamed out, the generator is not moved, and the driving motor drives the rear driving shaft of the rear axle through the gear III and the gear IV, so that the whole automobile enters a two-drive mode; when a new energy automobile power system needs to be in a range extending mode, the clutch is in a disengaging state, the internal combustion engine is ignited to drive the generator to generate electricity, the driving motor drives the rear driving shaft of the rear axle through the gear III and the gear IV, and the whole automobile enters a pure two-wheel driving mode. The invention improves the problems that the existing range-extending automobile range-extending system is large in size, complex in shape, inconvenient for whole automobile arrangement and platform automobile type transplantation, realizes the switching between two-drive and four-drive through the clutch, can conveniently and reliably realize mode switching by starting/stopping the internal combustion engine, and meets the requirements of different working conditions and paths. The range-extending power supply mode can be realized, and external quick charging can be realized. Therefore, the performance of the power system of the new energy automobile is comprehensively improved. The new energy automobile power system and the control method thereof have the advantages that the system structure is simple, the method steps are simple, the power system of the new energy extended range type electric vehicle is reasonably designed aiming at the problem that the existing new energy pure electric vehicle power system has defects, the four-wheel drive mode is realized by reasonably utilizing the double-motor system, the power system can conveniently and reliably realize mode switching, the requirements on power performance and economy are met, the manufacturing cost is low, and the requirement on high power performance can be met.
Drawings
The contents of the description and the references in the drawings are briefly described as follows:
FIG. 1 is a schematic structural diagram of a new energy automobile power system according to the present invention;
in the drawings, the reference numbers are respectively: 1. a generator; 2. a range extender; 3. a clutch; 4. a drive motor; 5. a battery; 6. a front axle; 7. a gear I; 8. a gear II; 9. a gear III; 10. a rear axle; 11. a gear IV; 12. a gear V; 13. a front drive shaft; 14. a rear drive shaft.
Detailed Description
The following detailed description of the embodiments of the present invention, such as the shapes and structures of the components, the mutual positions and connection relations among the components, the functions and operation principles of the components, will be made by referring to the accompanying drawings and the description of the embodiments:
as shown in the attached drawing 1, the range extender 2 is connected with a gear II 8, a clutch 3 is connected with a gear V12, the gear V12 is connected with a front axle 6, a generator 1 is connected with the gear II 8 through a gear I7, a driving motor 4 is connected with a rear axle 10 through a gear III 9 and a gear IV 11, the generator 1 and the driving motor 4 are respectively connected with a battery 5, and the front axle 6 and the rear axle 10 are connected with a vehicle body. The structure provides an improved technical scheme aiming at the defects in the prior art. Through scheme improvement, the new energy automobile power system realizes switching between pure electric and range extending modes and between two-wheel drive and four-wheel drive by starting/stopping the range extender 2. When a new energy automobile power system needs to be in a pure electric mode, the clutch 3 is in a disengaged state, the internal combustion engine 2 is flamed out, the generator 1 is not moved, and the driving motor 4 drives the rear driving shaft of the rear axle 10 through the gear III 9 and the gear IV 11, so that the whole automobile enters a two-drive mode; when a new energy automobile power system needs to be in a pure electric mode, the clutch 3 is in a disengaged state, the internal combustion engine 2 is flamed out, the generator 1 is not moved, and the driving motor 4 drives the rear driving shaft of the rear axle 10 through the gear III 9 and the gear IV 11, so that the whole automobile enters a two-drive mode; when a new energy automobile power system needs to be in a range extending mode, the clutch 3 is in a disengaging state, the internal combustion engine 2 is ignited to drive the generator 1 to generate electricity, the driving motor 1 drives a rear driving shaft of the rear axle 10 through the gear III 9 and the gear IV 11, and the whole automobile enters a pure electric two-wheel driving mode. The invention improves the problems that the existing range-extending automobile range-extending system is large in size, complex in shape, inconvenient for whole automobile arrangement and platform automobile type transplantation, realizes the switching between two-drive and four-drive through the clutch, can conveniently and reliably realize mode switching by starting/stopping the internal combustion engine, and meets the requirements of different working conditions and paths. The range-extending power supply mode can be realized, and external quick charging can be realized. Therefore, the performance of the power system of the new energy automobile is comprehensively improved. The new energy automobile power system is simple in structure, and aims at the problem that the existing new energy pure electric automobile power system has defects, the power system of the new energy extended range electric automobile is reasonably designed, and a four-wheel drive mode is realized by reasonably utilizing a double-motor system, so that the power system can conveniently and reliably realize mode switching, the requirements of power performance and economy are met, the manufacturing cost is low, and the requirement of high power performance can be met.
The range extender 2 and the generator 1 form a range extending system through a gear II 8 and a gear I7, and the range extender 2 is an internal combustion engine. With the structure, when the range extender starts to work, the generator is driven to work, and when the range extender works and the clutch is combined, the range extender drives the front axle.
The clutch 3 is arranged to be capable of controlling the on-off of the range extender 2 and the front driving shaft 13 of the front axle 6 through connecting or disconnecting the connecting state of the gear V12 and the gear II 8, and the driving motor 4 is connected with the rear driving shaft 14 of the rear axle 10. By the structure, the clutch can be switched between a combined state and a separated state, so that the clutch is in different working states under different working conditions.
The new energy automobile power system is set to be capable of realizing switching between a pure electric mode and a range extending mode and between two-wheel drive and four-wheel drive by starting/stopping the range extender 2. According to the structure, the range extender is an internal combustion engine, and the starting/stopping of the range extender is controlled by the whole vehicle control component, so that the range extender is ensured to be in different working states under different working conditions. And the generator is connected with the battery and is used for charging the battery when the generator works. When the range extender works, the generator is driven to rotate, and the generator charges the battery. The battery supplies power to the driving motor and is used for driving the rear axle.
When the SOC of the new energy automobile power system is higher than a set value or in a power mode, the clutch 3 is set to be in a combined state, the internal combustion engine 2 and the generator 1 are connected with a driving axle gear of the front axle 6 along the gear II 8, the clutch 3 and the gear V12 to drive a front driving shaft 13, and the driving motor 4 is set to be capable of driving a rear driving shaft 14 of the rear axle 10 through the gear III 9 and the gear IV 11 to realize the structure that the whole automobile enters an electric four-wheel drive mode. In the above structure, SOC is short for state of charge, and SOC refers to the state of charge of the automobile battery, also called residual capacity, and represents the capability of the battery to continue operating. At the moment, the range extender and the driving motor work simultaneously, one drives the front axle and the other drives the rear axle to realize the front and rear driving action, and the four-wheel drive state is realized.
When the new energy automobile power system is in a pure electric mode, the clutch 3 is set to be in a disengagement state, the internal combustion engine 2 is flamed out, the generator 1 is not moved, the driving motor 4 is set to be a rear driving shaft 14 capable of driving the rear axle 10 through the gear III 9 and the gear IV 11, and the whole automobile is in a structure of a two-drive mode. The structure is powered by the battery to drive the motor in the pure electric mode. And the driving motor rotates to drive the rear axle, so that the whole vehicle is in a two-drive state.
When the new energy automobile power system is in the range extending mode, the clutch 3 is set to be in a disengaging state, the range extending device 2 is ignited to drive the generator 1 to generate electricity, the range extending device 2 is set to be capable of driving the front driving shaft 13 of the front axle 6 through the gear II 8 and the gear V12, and the whole automobile is driven into a two-wheel driving mode. When the structure is in the city increasing mode, the internal combustion engine serving as the range extender is started and serves as a power source to drive the rear axle, and the whole vehicle is in a two-drive state. At this time, the control part controls the battery not to supply power to the driving motor, and the driving motor does not drive the rear axle. Meanwhile, the range extender drives the generator to rotate, and the generator charges the battery to store energy.
The generator 1 and the range extender 2 are arranged in parallel, and the range extender 2 and the front driving shaft 13 of the front axle 6 are arranged in parallel. The drive motor 4 is arranged in parallel with the rear drive shaft 14 of the rear axle 10.
The invention also relates to a control method of the new energy automobile power system, which has simple steps, reasonably designs the power system of the new energy extended range electric vehicle aiming at the problem of the defects of the power system of the existing new energy pure electric vehicle, reasonably utilizes the double-motor system to realize the four-wheel drive mode, ensures that the power system can conveniently and reliably realize the mode switching, gives consideration to the requirements of power performance and economy, and simultaneously meets the requirements of low manufacturing cost and high power performance.
The control method of the new energy automobile power system comprises the following control steps:
s1, when the SOC of a new energy automobile power system is higher than a set value or in a power mode, a clutch 3 is set to be in a combined state, an internal combustion engine 2 and a generator 1 are connected with a driving axle gear of a front axle 6 along a gear II 8, the clutch 3 and a gear V12 to drive a front driving axle 13, and a driving motor 4 is set to be a structure capable of driving a rear driving axle 14 of a rear axle 10 through a gear III 9 and a gear IV 11 to realize that the whole automobile enters an electric four-wheel drive mode; at this time, the range extender drives the front axle, the driving motor drives the rear axle, and the generator simultaneously charges the battery and stores energy.
S2, when a new energy automobile power system needs to be in a pure electric mode, the clutch 3 is in a disengagement state, the internal combustion engine 2 is flamed out, the generator 1 is not moved, the driving motor 4 drives a rear driving shaft of the rear axle 10 through the gear III 9 and the gear IV 11, and the whole automobile enters a two-drive mode; at the moment, the whole vehicle is in an electric-only mode, the clutch is in a separation state, the range extender is in a stop state under the control of the control part, the generator cannot rotate, and the energy stored by the battery is completely consumed at the moment.
And S3, the clutch 3 is in a disengaged state, the range extender 2 is ignited to drive the generator 1 to generate power, and the range extender 2 drives the front driving shaft 13 of the front axle 6 through the gear II 8 and the gear V12, so that the whole vehicle enters a two-wheel driving mode. At the moment, the range extender drives the generator to rotate to charge the battery.
According to the new energy automobile power system and the control method thereof, the new energy automobile power system realizes switching between a pure electric range increasing mode and a range increasing mode and between two-wheel drive and four-wheel drive by starting/stopping the range extender. When the power system of the new energy automobile needs to be in a pure electric mode, the clutch is in a disengaged state, the internal combustion engine is flamed out, the generator is not moved, and the driving motor drives the rear driving shaft of the rear axle through the gear III and the gear IV, so that the whole automobile enters a two-drive mode; when the power system of the new energy automobile needs to be in a pure electric mode, the clutch is in a disengaged state, the internal combustion engine is flamed out, the generator is not moved, and the driving motor drives the rear driving shaft of the rear axle through the gear III and the gear IV, so that the whole automobile enters a two-drive mode; when the new energy automobile power system needs to be in a range extending mode, the clutch is in a disengaging state, the internal combustion engine is ignited to drive the generator to generate electricity, the driving motor drives the rear driving shaft of the rear axle through the gear III and the gear IV, and the whole automobile enters a pure electric two-wheel driving mode. The invention improves the problems that the existing range-extending automobile range-extending system is large in size, complex in shape, inconvenient for whole automobile arrangement and platform automobile type transplantation, realizes the switching between two-drive and four-drive through the clutch, can conveniently and reliably realize mode switching by starting/stopping the internal combustion engine, and meets the requirements of different working conditions and paths. The range-extending power supply mode can be realized, and external quick charging can be realized. Therefore, the performance of the power system of the new energy automobile is comprehensively improved. The new energy automobile power system and the control method thereof have the advantages that the system structure is simple, the method steps are simple, the power system of the new energy extended range type electric vehicle is reasonably designed aiming at the problem that the existing new energy pure electric vehicle power system has defects, the four-wheel drive mode is realized by reasonably utilizing the double-motor system, the power system can conveniently and reliably realize mode switching, the requirements on power performance and economy are met, the manufacturing cost is low, and the requirement on high power performance can be met.
The present invention has been described in connection with the accompanying drawings, and it is to be understood that the invention is not limited to the specific embodiments disclosed, but is intended to cover various modifications, changes and equivalents of the embodiments of the invention, and its application to other applications without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a new energy automobile driving system which characterized in that: increase journey ware (2) and connect gear II (8), clutch (3) are connected gear V (12), front axle (6) is connected in gear V (12), gear II (8) is connected through gear I (7) in generator (1), rear axle (10) is connected through gear III (9) and gear IV (11) in driving motor (4), battery (5) are connected respectively in generator (1) and driving motor (4), the automobile body is connected in front axle (6) and rear axle (10).
2. The new energy automobile power system according to claim 1, characterized in that: the range extender (2) and the generator (1) form a range extending system through a gear II (8) and a gear I (7), and the range extender (2) is an internal combustion engine.
3. The new energy automobile power system according to claim 1 or 2, characterized in that: the clutch (3) is set to be in a structure capable of controlling the on-off of the range extender (2) and a front driving shaft (13) of the front axle (6) through connecting or disconnecting a gear V (12) and a gear II (8), and the driving motor (4) is connected with a rear driving shaft (14) of the rear axle (10).
4. The new energy automobile power system according to claim 3, characterized in that: the new energy automobile power system is set to be capable of realizing switching between a pure electric mode and a range extending mode and between two-wheel drive and four-wheel drive through starting/stopping the range extender (2).
5. The new energy automobile power system according to claim 4, characterized in that: when the SOC of the new energy automobile power system is higher than a set value or in a power mode, the clutch (3) is set to be in a combined state, the internal combustion engine (2) and the generator (1) are connected with a driving axle gear of the front axle (6) along the gear II (8), the clutch (3) and the gear V (12) to drive the front driving axle (13), the driving motor (4) is set to be capable of driving a rear driving axle (14) of the rear axle (10) through the gear III (9) and the gear IV (11), and the whole automobile is driven to enter the electric four-wheel driving mode.
6. The new energy automobile power system as claimed in claim 5, characterized in that: when new energy automobile driving system be in pure electric mode, clutch (3) set up to be in the disengagement state, internal-combustion engine (2) flame-out, generator (1) motionless, driving motor (4) set up to be able to pass through rear drive axle (14) of gear III (9) and gear IV (11) drive rear axle (10), realize putting in order the car and get into the structure of two-wheeled drive mode.
7. The new energy automobile power system according to claim 6, characterized in that: when new energy automobile power system be in the increase journey mode, clutch (3) set up to be in the disengagement state, increase journey ware (2) ignition and drive generator (1) electricity generation, increase journey ware (2) set up to be able to pass through front drive shaft (13) of gear II (8) and gear V (12) drive front axle (6), realize whole car and get into the structure of two-wheel drive mode.
8. The new energy automobile power system according to claim 1 or 2, characterized in that: the generator (1) and the range extender (2) are arranged in parallel, and the range extender (2) and a front driving shaft (13) of the front axle (6) are arranged in parallel.
9. The new energy automobile power system according to claim 1 or 2, characterized in that: the driving motor (4) is arranged in parallel with a rear driving shaft (14) of the rear axle (10).
10. A control method of a new energy automobile power system is characterized by comprising the following steps: the control method of the new energy automobile power system comprises the following control steps:
s1, when the SOC of a new energy automobile power system is higher than a set value or in a power mode, a clutch (3) is set to be in a combined state, an internal combustion engine (2) and a generator (1) are connected with a drive axle gear of a front axle (6) along a gear II (8), the clutch (3) and a gear V (12) to drive a front drive shaft (13), and a drive motor (4) is set to be capable of driving a rear drive shaft (14) of a rear axle (10) through a gear III (9) and a gear IV (11) to realize the structure that the whole automobile enters an electric four-wheel drive mode;
s2, when the power system of the new energy automobile needs to be in a pure electric mode, the clutch (3) is in a disengaged state, the internal combustion engine (2) is flamed out, the generator (1) is not moved, and the driving motor (4) drives a rear driving shaft of the rear axle (10) through the gear III (9) and the gear IV (11), so that the whole automobile enters a two-drive mode;
s3, when the power system of the new energy automobile needs to be in a range extending mode, the clutch (3) is in a disengaged state, the range extending device (2) is ignited to drive the generator (1) to generate electricity, the range extending device (2) drives a front driving shaft (13) of the front axle (6) through the gear II (8) and the gear V (12), and the whole automobile enters a two-wheel driving mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210812857.8A CN114954040A (en) | 2022-07-11 | 2022-07-11 | New energy automobile power system and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210812857.8A CN114954040A (en) | 2022-07-11 | 2022-07-11 | New energy automobile power system and control method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114954040A true CN114954040A (en) | 2022-08-30 |
Family
ID=82968606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210812857.8A Pending CN114954040A (en) | 2022-07-11 | 2022-07-11 | New energy automobile power system and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114954040A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102381177A (en) * | 2011-08-18 | 2012-03-21 | 奇瑞汽车股份有限公司 | Electric four-drive hybrid system and control method thereof |
| CN105946600A (en) * | 2016-05-04 | 2016-09-21 | 中国第汽车股份有限公司 | Series connection range extending type electric automobile power system and control method thereof |
| CN108248367A (en) * | 2018-01-03 | 2018-07-06 | 北京汽车股份有限公司 | The dynamical system of hybrid vehicle |
| US20200398658A1 (en) * | 2018-02-09 | 2020-12-24 | Zhejiang Geely Holding Group Co., Ltd | Hybrid power drive system and vehicle |
| CN113320519A (en) * | 2021-06-02 | 2021-08-31 | 东风汽车集团股份有限公司 | Four-wheel drive hybrid power system and multi-driving mode control method |
| CN214874201U (en) * | 2020-12-18 | 2021-11-26 | 深圳臻宇新能源动力科技有限公司 | Vehicle with a steering wheel |
| CN214929035U (en) * | 2021-07-26 | 2021-11-30 | 深圳市斗索科技有限公司 | Range-extending type electric automobile |
-
2022
- 2022-07-11 CN CN202210812857.8A patent/CN114954040A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102381177A (en) * | 2011-08-18 | 2012-03-21 | 奇瑞汽车股份有限公司 | Electric four-drive hybrid system and control method thereof |
| CN105946600A (en) * | 2016-05-04 | 2016-09-21 | 中国第汽车股份有限公司 | Series connection range extending type electric automobile power system and control method thereof |
| CN108248367A (en) * | 2018-01-03 | 2018-07-06 | 北京汽车股份有限公司 | The dynamical system of hybrid vehicle |
| US20200398658A1 (en) * | 2018-02-09 | 2020-12-24 | Zhejiang Geely Holding Group Co., Ltd | Hybrid power drive system and vehicle |
| CN214874201U (en) * | 2020-12-18 | 2021-11-26 | 深圳臻宇新能源动力科技有限公司 | Vehicle with a steering wheel |
| CN113320519A (en) * | 2021-06-02 | 2021-08-31 | 东风汽车集团股份有限公司 | Four-wheel drive hybrid power system and multi-driving mode control method |
| CN214929035U (en) * | 2021-07-26 | 2021-11-30 | 深圳市斗索科技有限公司 | Range-extending type electric automobile |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106183780B (en) | Double-planetary gear train double-motor coaxial coupling driving system | |
| CN109733178B (en) | Multi-motor hybrid power system and control method thereof | |
| CN102514479B (en) | Range extended electric vehicle power system | |
| CN107458207B (en) | Automobile hybrid power system and application method | |
| CN104742721A (en) | Hybrid power system with double clutches and implementation method f system | |
| CN208682599U (en) | Variator system based on hybrid power | |
| CN106274443B (en) | Double-synchronous clutch and planetary gear coupling double-motor power system | |
| CN201784620U (en) | Series-and-parallel hybrid power drive system | |
| CN113043828B (en) | Transmission of vehicle hybrid power system and control method | |
| CN111098695B (en) | Hybrid power driving system and vehicle | |
| CN214138222U (en) | Dual-motor hybrid power driving system | |
| CN107554274B (en) | Multi-mode power transmission structure of hybrid electric vehicle | |
| CN110816253B (en) | Gear ring-free planetary gear train hybrid power system | |
| CN114475207B (en) | Hybrid electric vehicle driving system | |
| CN214689008U (en) | Single-clutch double-gear low-cost hybrid power system | |
| CN215793204U (en) | Range-extending running and parallel operation power system suitable for engineering machinery | |
| CN214822576U (en) | Single-brake double-gear low-cost hybrid power system | |
| CN114954040A (en) | New energy automobile power system and control method thereof | |
| CN214450256U (en) | Low-cost hybrid power system with good working condition coverage degree | |
| CN110789328B (en) | Hybrid power drive system | |
| CN210733817U (en) | Integrated stroke-increasing hybrid system and stroke-increasing hybrid vehicle | |
| CN209955738U (en) | Hybrid power transmission system capable of simultaneously recovering double motors under energy overflow working condition | |
| CN108909432B (en) | Multimode coupling power driving system of single-motor hybrid electric vehicle | |
| CN209955739U (en) | Hybrid power transmission system for single motor recovery under energy overflow working condition | |
| CN109017268B (en) | Hybrid power system and control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |