CN117246118A - Range-extending type electric automobile with damping device - Google Patents
Range-extending type electric automobile with damping device Download PDFInfo
- Publication number
- CN117246118A CN117246118A CN202311343905.4A CN202311343905A CN117246118A CN 117246118 A CN117246118 A CN 117246118A CN 202311343905 A CN202311343905 A CN 202311343905A CN 117246118 A CN117246118 A CN 117246118A
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- CN
- China
- Prior art keywords
- hub
- engine
- generator
- damping device
- motor controller
- 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
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- 238000013016 damping Methods 0.000 title claims abstract description 29
- 239000000126 substance Substances 0.000 claims abstract description 6
- 230000006835 compression Effects 0.000 claims description 18
- 238000007906 compression Methods 0.000 claims description 18
- 238000004880 explosion Methods 0.000 claims description 2
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 2
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- B60K5/00—Arrangement or mounting of internal-combustion or jet-propulsion units
-
- 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
- B60L50/61—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
- B60L50/62—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles charged by low-power generators primarily intended to support the batteries, e.g. range extenders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
- F16F15/131—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses
- F16F15/133—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses using springs as elastic members, e.g. metallic springs
- F16F15/134—Wound springs
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
- H02K7/1807—Rotary generators
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Transportation (AREA)
- Sustainable Development (AREA)
- Chemical & Material Sciences (AREA)
- Sustainable Energy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Combustion & Propulsion (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
An extended range electric automobile with a damping device belongs to the technical field of automobiles. The power battery is used for providing electric energy for the whole vehicle; the TM motor controller is used for giving an instruction to the driving motor and is connected with the generator; the driving motor is used for driving the driving wheel through the speed reducer; the GCU unit is connected with the engine and used for giving instructions to the GM motor controller and the ECU assembly; the GM motor controller is used for performing torque compensation control on the driving motor; the engine is used for converting chemical energy into mechanical energy to be output; the generator converts mechanical energy output by the engine into electric energy to be output; the engine is mechanically connected with the generator through a hardware connecting mechanism, and a damping device is arranged on the hardware connecting mechanism; the GM motor controller is connected with the generator; the VCU controller is used to collect information. The invention avoids shaking of the whole vehicle caused by torque fluctuation, reduces NVH and improves driving experience; and electronic control of damping is not needed any more, thus saving the cost of the whole vehicle.
Description
Technical Field
The invention relates to a range-extending type electric automobile with a damping device, and belongs to the technical field of automobiles.
Background
The range-extending and hybrid vehicles need to be further improved in terms of noise reduction and vibration reduction because the conventional engines are still installed. For vibration of the vehicle, torque fluctuation of the engine is an important cause, and if the torque fluctuation of the engine can be effectively restrained, and torque output of the system is smoothed, the vibration of the engine and the vibration of the vehicle body caused by the vibration can be effectively restrained, and the driving control performance of the vehicle can be greatly improved.
When the existing range extender system is used for starting an engine in the process of stopping or running the whole vehicle, the engine is dragged to a certain rotating speed by the generator and then is injected to ignite, the engine cannot be stably dragged to start because of different torque fluctuation frequencies of the engine at each time due to the working characteristics of the engine, the motor rotating speed and the engine rotating speed shake during starting, the maximum detonation pressure is far greater than the average effective pressure because of the working characteristics of the engine, and connecting parts are easy to be damaged when the surge type power transmission is used together with the generator, so that the conditions of poorer NVH level of the whole vehicle started by the engine and reduced system reliability exist.
Disclosure of Invention
In order to solve the problems in the background technology, the invention provides a range-extending type electric automobile with a damping device.
The invention adopts the following technical scheme: an extended range electric vehicle with a damping device comprises
The power battery is used for providing electric energy for the whole vehicle;
the TM motor controller is used for giving an instruction to the driving motor, connecting with the generator and controlling the rotating speed of the generator;
a driving motor for driving the driving wheel through a decelerator;
the GCU unit is connected with the engine and used for giving instructions to the GM motor controller and the ECU assembly; the GM motor controller is used for performing torque compensation control on the driving motor;
an engine as a power source for converting chemical energy into mechanical energy output;
the generator is used for converting mechanical energy output by the engine into electric energy to be output;
the engine is mechanically connected with the generator through the hardware connecting mechanism, and the hardware connecting mechanism is provided with a damping device;
the GM motor controller is connected with the generator, the low-voltage wire harness is responsible for collecting and processing signals of the rotary transformer in real time, and the high-voltage wire harness transmits current generated by the motor to the TM motor controller;
a VCU controller for collecting vehicle information/driver intent/controlling vehicle operation/diagnosing vehicle faults.
Compared with the prior art, the invention has the beneficial effects that:
the invention is provided with the vibration damper which has a torsion limiting function, so that when the torque fluctuation is large or the torque is output, the vibration damper can select the slip consumption capacity, thereby avoiding the vibration of the whole vehicle caused by the torque fluctuation, reducing NVH (noise vibration harshness), even completely inhibiting, and improving the driving experience; and electronic control of damping is not needed any more, thus saving the cost of the whole vehicle.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of the hardware connection mechanism;
FIG. 3 is a schematic view of a shock absorbing device;
FIG. 4 is a graph of engine performance for the present invention, wherein: (a) is a power contour plot; (b) is an APmax data map; (c) is a Pmax data plot; (d) is a cylinder pressure data map; reference numeral 61 denotes a first operating mode 1 cylinder pressure curve; 62 is a first operating mode 2 cylinder pressure curve; 63 is a first operating mode 3 cylinder pressure curve; 64 is a first operating mode 4 cylinder pressure curve; 65 is the maximum burst pressure;
fig. 5 is a torque ripple diagram of the drive motor of the present invention, wherein: 71 is the torque fluctuation of the driving motor under the second working condition; 72 is torque ripple of the driving motor under the third working condition; 73 is a fourth operating condition drive motor torque ripple; and 74 is a fifth operating mode motor torque ripple.
Detailed Description
The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present invention are all within the protection scope of the present invention.
An extended range electric vehicle with a damping device comprises
A power battery 11 for supplying electric power to the whole vehicle;
a TM motor controller 9 connected to the power battery 11 through a first wire harness 10 for issuing instructions to the driving motor 4; the second wire harness 13 is connected with the generator 3 to control the rotating speed of the generator;
a drive motor 4 connected to the TM motor controller 9 through a fourth harness 14 for driving the drive wheel 5 through the reduction gear 6;
the GCU unit 15 is connected with the power battery 11 through the first wire harness 10 and connected with the engine 1 through the third wire harness 18 and is used for giving instructions to the GM motor controller 16 and the ECU assembly 17;
a GM motor controller 16 for performing torque compensation control for the drive motor 4;
the engine 1 adopts an Atkinson cycle high-efficiency engine, and the engine 1 at least comprises a cylinder, a valve mechanism, a crank connecting rod structure, a machine body group and the like. The engine 1 is used as a power source for converting chemical energy into mechanical energy for output, the generator 3 is connected with the engine 1 by adopting a fixed speed ratio, and the speed ratio is usually 1 or 1-0.42;
the generator 3 comprises a stator, a rotor, a water jacket, a shell and other structures, the generator 3 converts mechanical energy output by the engine 1 into electric energy to be output, the rotation direction of the generator is positive, the torque is positive torque and negative torque, and power is transmitted to the engine 1;
the hardware connecting mechanism 2 at least comprises a crankshaft, a flywheel, a damping device and an input shaft, wherein the hardware connecting mechanism 2 is rigidly connected with each other by bolts or splines; the engine 1 is mechanically connected with the generator 3 through a hardware connecting mechanism 2, and a damping device 25 is arranged on the hardware connecting mechanism 2;
the hardware connecting mechanism 2 comprises a signal plate 22, a crank connecting rod mechanism 23, a damping device 25, an input shaft 27, an adapter plate 28 and a flywheel assembly 29;
the signal board 22 is used for providing a crank position signal to the ECU assembly 17 so as to perform ignition control and calculate the crank angle moment and position of the maximum explosion pressure;
the crank-link mechanism 23 comprises a crank shaft, a connecting rod and other parts, is used for converting chemical energy into mechanical energy, and is externally output by the crank shaft 26; the crankshaft 26 is connected with the flywheel assembly 29 through bolts, and in order to ensure that the centering adopts spigot positioning, the positioning tolerance is +/-0.05 mm;
the flywheel assembly 29 is a single mass flywheel, the rotational inertia of the flywheel is re-matched according to the whole vehicle requirement, and the rotational inertia of the flywheel is kept at 0.08+/-0.02 Kgm 2 ；
The damper 25 is mounted on the input shaft 27 by a damper bolt 24.
The damping device 25 comprises a first pressing piece 31, a limiting pin 32, a second pressing piece 33, a hub sleeve 34, a first pressing hub 35, a second pressing hub 36, a hub 37 and a damping spring 38;
the disc hub 37 is sleeved on the outer side of the input shaft 27 and is connected with the disc hub 37 through a spline, engine working torque is transmitted to the input shaft 27 through the disc hub 37, and in order to avoid unnecessary torque generated by engine starting and rotation speed fluctuation to be transmitted to a vehicle body, a starting strategy and a damping mode are adopted to reduce influence.
The outside of the disk hub 37 is sequentially sleeved with a first pressing piece 31, a second pressing piece 33, a disk hub sleeve 34, a first pressing hub 35 and a second pressing hub 36, the disk hub sleeve 34 and the first pressing hub 35 are connected with the disk hub 37 through key grooves, and a circumferential angle of 4 degrees is formed between the disk hub sleeve 34 and the disk hub 37. The first pressing piece 31, the second pressing piece 33 and the second pressing hub 36 are sleeved outside the disc hub 37, and no mechanical connection relation exists. The pressing hub one 35 rotates in synchronization with the hub 37 and transmits torque. Hub sleeve 34 transfers engine torque shock to hub 37.
The first compression hub 35 is connected with the second compression hub 36 through a plurality of damping springs 38 which are uniformly distributed along the circumferential direction of the first compression hub 35, and the first compression hub 35 and the second compression hub 36 perform relative rotation movement; the damping springs 38 are used for circumferential fixing and limiting at the position 4 through the first compression hub 35 and the second compression hub 36.
The first pressing piece 31 is provided with a limiting pin 32, the limiting pin 32 is arranged in a limiting groove of the second pressing piece 33, the first pressing piece 31 is connected with the second pressing piece 33 through the limiting pin 32, and the limiting pin 32 and the second pressing piece 33 are of a mechanical transmission structure and can transmit torque.
The AC damping is formed by the compression sheet, the compression hub and the limiting pin, and primary vibration of the compression curve of the engine cylinder is mainly restrained. The inhibition range is within about 4 degrees.
The second pressing piece 33 is in pressing fit connection with the hub sleeve 34.
The GM motor controller 15 is connected with the generator 3 through a second wire harness 13, the low-voltage wire harness is responsible for collecting and processing signals of the rotary transformer in real time, and the high-voltage wire harness transmits current generated by the motor to the TM motor controller;
VCU controller 7 for collecting vehicle information/driver intention/controlling vehicle operation/diagnosing vehicle failure.
In a four-stroke reciprocating piston engine, rotation speed and torque fluctuation are caused by combination of cylinder pressure curve change, a flywheel is utilized for energy storage, a damping device is utilized for warm-shock absorption and torque fluctuation, inertia and rigidity contained in the transmission system generate a structure capable of torsional vibration with characteristic natural frequency, and vibration amplification, including vibration transmission of tires and the like, is avoided through adjustment of torque fluctuation frequency and carrier frequency of a generator.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (3)
1. An extended range electric automobile with damping device, its characterized in that: comprising
A power battery (11) for supplying electric energy to the whole vehicle;
a TM motor controller (9) for issuing instructions to the drive motor (4); the device is connected with a generator (3) to control the rotating speed of the generator;
a driving motor (4) for driving the driving wheel (5) through a decelerator (6);
the GCU unit (15) is connected with the engine (1) and is used for giving instructions to the GM motor controller (16) and the ECU assembly (17);
a GM motor controller (16) for performing torque compensation control on the drive motor (4);
an engine (1) as a power source for converting chemical energy into mechanical energy output;
a generator (3) for converting mechanical energy output from the engine (1) into electric energy for output;
the engine (1) is mechanically connected with the generator (3) through the hardware connecting mechanism (2), and the hardware connecting mechanism (2) is provided with a damping device (25);
the GM motor controller (15) is connected with the generator (3), the low-voltage wire harness is responsible for collecting and processing signals of the rotary transformer in real time, and the high-voltage wire harness transmits current generated by the motor to the TM motor controller;
a VCU controller (7) for collecting vehicle information/driver intention/controlling vehicle operation/diagnosing vehicle faults.
2. The extended range electric vehicle with a damping device according to claim 1, wherein: the hardware connecting mechanism (2) comprises a signal plate (22), a crank connecting rod mechanism (23), a damping device (25), an input shaft (27) and a flywheel assembly (29);
the signal board (22) is used for providing a crank shaft position signal to the ECU assembly (17) so as to perform ignition control and calculate the crank angle moment and position of the maximum explosion pressure;
the crank connecting rod mechanism (23) is used for converting chemical energy into mechanical energy and outputting the mechanical energy by the crankshaft (26);
the flywheel assembly (29) is a single mass flywheel;
the damper device (25) is mounted on the input shaft (27).
3. The extended range electric vehicle with a damping device according to claim 2, wherein: the damping device (25) comprises a first pressing piece (31), a limiting pin (32), a second pressing piece (33), a disc hub sleeve (34), a first pressing hub (35), a second pressing hub (36), a disc hub (37) and a damping spring (38); the disc hub (37) is sleeved on the outer side of the input shaft (27); the outer side of the disc hub (37) is sequentially sleeved with a first compression sheet (31), a second compression sheet (33), a disc hub sleeve (34), a first compression hub (35) and a second compression hub (36); the first compression hub (35) is connected with the second compression hub (36) through a damping spring (38), and the first compression hub 35 and the second compression hub 36 perform relative rotation; a limiting pin (32) is arranged on the first pressing piece (31), and the limiting pin (32) is arranged in a limiting groove of the second pressing piece (33); the second pressing piece (33) is in pressing fit connection with the hub sleeve (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311343905.4A CN117246118A (en) | 2023-10-17 | 2023-10-17 | Range-extending type electric automobile with damping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311343905.4A CN117246118A (en) | 2023-10-17 | 2023-10-17 | Range-extending type electric automobile with damping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117246118A true CN117246118A (en) | 2023-12-19 |
Family
ID=89129357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311343905.4A Pending CN117246118A (en) | 2023-10-17 | 2023-10-17 | Range-extending type electric automobile with damping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117246118A (en) |
-
2023
- 2023-10-17 CN CN202311343905.4A patent/CN117246118A/en active Pending
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