CN215097538U - Range extender control device, range extender and vehicle - Google Patents
Range extender control device, range extender and vehicle Download PDFInfo
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- CN215097538U CN215097538U CN202120655148.4U CN202120655148U CN215097538U CN 215097538 U CN215097538 U CN 215097538U CN 202120655148 U CN202120655148 U CN 202120655148U CN 215097538 U CN215097538 U CN 215097538U
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- 239000004606 Fillers/Extenders Substances 0.000 title claims abstract description 64
- 238000005299 abrasion Methods 0.000 claims abstract description 19
- 230000008859 change Effects 0.000 claims abstract description 8
- 238000010248 power generation Methods 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000005457 optimization Methods 0.000 claims description 4
- 230000002159 abnormal effect Effects 0.000 abstract description 9
- 230000006641 stabilisation Effects 0.000 abstract description 2
- 238000011105 stabilization Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 16
- 239000000446 fuel Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000000087 stabilizing effect Effects 0.000 description 1
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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
- Y02T10/62—Hybrid 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
- 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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- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
The utility model is suitable for an automotive technology field provides a range extender controlling means, include: the real-time information acquisition module is used for acquiring real-time information of the engine and the generator; the real-time information of the engine at least comprises a rotating speed, a rotating speed change rate and a load, and the real-time information of the generator at least comprises a torque; the calculation module is used for estimating the wear consumption of the engine according to the real-time information of the engine and the generator; and the compensation module is used for compensating the abrasion consumption through a load curve of the engine so as to enable the engine to output a stable rotating speed. Utilize the utility model discloses an increase journey ware controlling means can estimate and offset with the load curve the wearing and tearing of engine at the arbitrary working moment of engine to stabilize the engine speed, avoid the gear between generator and the engine striking each other and produce the abnormal sound, solve system NVH problem, improve its job stabilization nature. The utility model discloses still provide and increase journey ware, vehicle.
Description
Technical Field
The utility model belongs to the technical field of the car, especially, relate to an increase journey ware controlling means, increase journey ware, vehicle.
Background
The electric automobile is a vehicle using electric energy to drive a power motor as a power system, and has the advantages of low energy consumption, environmental protection, cleanness and the like, so that the electric automobile is more and more widely applied in life. However, the electric automobile has the defect of short endurance mileage, so that the problem of inconvenient driving is caused, and the driving experience is influenced. To solve the problem, a range extender can be installed on the electric automobile.
The range extender mainly comprises an engine and a generator. The extended range electric vehicle can be regarded as a pure electric vehicle with small capacity, a generator is additionally arranged to enable the vehicle to run and charge at the same time, when the electric quantity of the battery is insufficient, the extended range engine works to generate electricity, one part of the generated electricity is used for directly driving the motor, and the other part of the generated electricity is used for charging the storage battery. Under the operation mode of half charging and half discharging, when the electric energy of the storage battery reaches a certain upper line, the extended range engine stops working, and the battery directly drives the motor; with the lengthening of the driving time and the driving mileage, the consumption of the storage battery is larger and larger, the electric energy of the storage battery is lower than a certain lower limit, the stroke-increasing engine is started again to work, and the subsequent stroke-increasing engine is always in the cyclic working state.
In practical application, the range-extended electric automobile selects the range-extended engine with small displacement and few cylinders in consideration of the influence of the weight of the electric automobile on the driving mileage.
However, the applicant of the present invention has found in implementing the above technical solution that the above technical solution has at least the following disadvantages:
the stroke-increasing engine has small displacement and few cylinders, so that the rotation speed fluctuation of the stroke-increasing engine is large when the stroke-increasing engine runs by itself, and further gears between the stroke-increasing engine and the generator are easy to collide with each other to generate abnormal sound, so that the serious NVH problem is caused, the driving experience is seriously influenced, and the abrasion of a stroke-increasing device is increased.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the utility model is to provide a range extender control method, aim at solving the range extender engine because of the discharge capacity is little, the cylinder number is few, leads to the rotational speed is unstable when increasing the range engine and running by oneself, and then increase the easy striking each other of gear between range engine and the generator and produce the abnormal sound, serious influence the driving experience, increased the problem of the wearing and tearing of range extender.
The embodiment of the utility model provides a realize like this, a increase journey ware controlling means, it includes to increase journey ware controlling means:
the real-time information acquisition module is used for acquiring real-time information of an engine and a generator, wherein the real-time information of the engine at least comprises a rotating speed, a rotating speed change rate and a load, and the real-time information of the generator at least comprises a torque;
the calculation module is used for estimating the wear consumption of the engine according to the real-time information of the engine and the generator;
and the compensation module is used for compensating the abrasion consumption through a load curve of the engine so as to enable the engine to output a stable rotating speed.
Preferably, the range extender control device further includes:
the optimization module is used for selecting the optimal working point of the engine according to the input side information of the engine and the output side information of the generator; the input side information of the engine at least comprises an oil injection amount and a throttle angle, and the output side information of the generator at least comprises a power generation amount or power generation power.
Another object of the embodiment of the present invention is to provide a range extender control device, the range extender control device includes:
the integrated controller is used for simultaneously controlling the engine and the generator; the integrated controller is used for acquiring real-time information of the engine and the generator, estimating the abrasion consumption of the engine according to the real-time information of the engine and the generator, and compensating the abrasion consumption through a load curve of the engine so as to enable the engine to output a stable rotating speed;
the real-time information of the engine at least comprises a rotating speed, a rotating speed change rate and a load, and the real-time information of the generator at least comprises a torque.
Preferably, the integrated controller includes:
a storage unit for storing data;
the operation unit is bidirectionally connected with the storage unit and is used for calculating the data stored in the storage unit;
and the control unit is unidirectionally connected with the storage unit and the operation unit and is used for simultaneously controlling data transmission and data calculation between the storage unit and the operation unit.
Another object of the embodiment of the present invention is to provide a range extender, the range extender includes:
an engine, a generator and a range extender control device as defined in any one of the preceding.
Another object of the embodiment of the present invention is to provide a vehicle, wherein the vehicle is provided with a range extender.
The embodiment of the utility model provides a pair of increase journey ware controlling means, it includes to increase journey ware controlling means: the real-time information acquisition module is used for acquiring real-time information of the engine and the generator; the real-time information of the engine at least comprises a rotating speed, a rotating speed change rate and a load, and the real-time information of the generator at least comprises a torque; the calculation module is used for estimating the wear consumption of the engine according to the real-time information of the engine and the generator; and the compensation module is used for compensating the abrasion consumption through a load curve of the engine so as to enable the engine to output a stable rotating speed. Utilize the utility model discloses an increase journey ware controlling means can estimate the wearing and tearing of engine and offset with the load curve at the arbitrary working hour of engine to stabilize the engine speed, avoid the gear between generator and the engine striking each other and produce the abnormal sound, solved system NVH problem, improve its job stabilization nature.
Drawings
Fig. 1 is a flowchart illustrating steps of a control method for a range extender according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating steps for optimizing the working efficiency of the range extender according to an embodiment of the present invention;
fig. 3 is a schematic block diagram of a control device of a range extender according to an embodiment of the present invention;
fig. 4 is a schematic block diagram of an integrated controller according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a conventional range extender;
fig. 6 is a schematic structural view of a range extender provided in an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following detailed description is provided for the specific embodiments of the present invention.
Example 1
In this embodiment, with reference to fig. 1, a range extender control method is provided, which includes the following steps:
acquiring real-time information of an engine and a generator, wherein the real-time information of the engine at least comprises a rotating speed, a rotating speed change rate and a load, and the real-time information of the generator at least comprises a torque;
estimating the wear consumption of the engine according to the real-time information of the engine and the generator;
the wear consumption is compensated by the load curve of the engine so that the engine outputs a stable rotational speed.
In the range extender control method, the real-time information of the engine and the generator can be obtained through a series of sensors, and the embodiment does not limit the way of obtaining the information.
By adopting the range extender control method, the abrasion of the engine can be estimated and offset by using the load curve at any working time of the engine, so that the rotating speed of the engine is stabilized, abnormal sound caused by mutual impact of gears between the generator and the engine is avoided, the problem of system NVH is solved, and the working stability of the engine is improved.
As a preferred embodiment of the present invention, with reference to fig. 1, the control method of the range extender further includes the following steps:
selecting an optimal working point of the engine according to the input side information of the engine and the output side information of the generator; the input side information of the engine at least comprises an oil injection amount and a throttle angle, and the output side information of the generator at least comprises a power generation amount or power generation power.
The embodiment further optimizes and improves the working efficiency of the range extender after stabilizing the rotating speed of the engine and synchronizing the rotating speeds of the range extender engine and the generator.
As a preferred embodiment of the present invention, with reference to fig. 2, the step of selecting the optimal operating point of the engine according to the input side information of the engine and the output side information of the generator includes:
defining a range extender working efficiency parameter m, wherein m = output side information of the generator/input side information of the engine;
and determining the output power of the generator in a certain range extender working efficiency parameter m, wherein the working point of the optimal rotating speed, the optimal air-fuel ratio and the minimum fuel injection quantity corresponding to the output power is the optimal working point of the engine.
Specifically, the output-side information of the generator and the input-side information of the engine may specifically be the power generation amount of the generator and the fuel injection amount of the engine, but the output-side information of the generator and the input-side information of the engine are not limited to the above-mentioned forms, and other variables or other calculation forms may be adopted. According to the working principle of the range extender, the generated energy of the generator is determined to be a fixed value, the optimal rotating speed under the output power is found, the determination index of the optimal rotating speed is to reduce the fuel injection quantity of the engine as much as possible, and the working efficiency parameter m of the range extender is improved. And from the perspective of the range extender, under the condition that the output power of the generator is constant, the oil injection amount is reduced, namely the oil consumption of the engine is reduced under the condition that the engine works at a high efficiency point.
Example 2
In this embodiment, with reference to fig. 3, a range extender control device is provided, which includes, in combination with the illustration:
the real-time information acquisition module is used for acquiring real-time information of an engine and a generator, wherein the real-time information of the engine at least comprises a rotating speed, a rotating speed change rate and a load, and the real-time information of the generator at least comprises a torque;
the calculation module is used for estimating the wear consumption of the engine according to the real-time information of the engine and the generator;
and the compensation module is used for compensating the abrasion consumption through a load curve of the engine so as to enable the engine to output a stable rotating speed.
The working flow of the range extender control device of the embodiment is as follows:
the method comprises the steps of firstly obtaining real-time information of an engine and a generator through a real-time information obtaining module, then estimating abrasion consumption of the engine through a calculating module according to the real-time information of the engine and the generator, and finally compensating the abrasion consumption through a compensating module according to a load curve of the engine so as to enable the engine to output a stable rotating speed.
By utilizing the range extender control device of the embodiment, the abrasion of the engine can be estimated and offset by using the load curve at any working moment of the engine, so that the rotating speed of the engine is stabilized, abnormal sound caused by mutual impact of gears between the generator and the engine is avoided, the problem of NVH of a system is solved, and the working stability of the system is improved.
As a preferred embodiment of the present invention, with reference to fig. 3, the range extender control device further includes:
the optimization module is used for selecting the optimal working point of the engine according to the input side information of the engine and the output side information of the generator; the input side information of the engine at least comprises an oil injection amount and a throttle angle, and the output side information of the generator at least comprises a power generation amount or power generation power.
Specifically, in the embodiment, through the optimization module, after the engine rotation speed is stabilized, that is, the rotation speeds of the range-extended engine and the generator are synchronized, the working efficiency of the range extender is further optimized and improved.
Example 3
In this embodiment, there is provided a range extender control device comprising:
the integrated controller is used for simultaneously controlling the engine and the generator; the integrated controller can implement the range extender control method of any one of embodiments 1.
In the embodiment, the real-time information of the engine and the generator is firstly acquired through the integrated controller, then the integrated controller estimates the abrasion consumption of the engine according to the real-time information of the engine and the generator, and finally the integrated controller compensates the abrasion consumption according to the load curve of the engine so as to enable the engine to output a stable rotating speed.
By utilizing the integrated controller of the embodiment, the abrasion of the engine can be estimated and offset by using the load curve at any working moment of the engine, so that the rotating speed of the engine is stabilized, abnormal sound caused by mutual impact of gears between the generator and the engine is avoided, the NVH problem of a system is solved, and the working stability of the system is improved.
After the above process, the integrated controller of the embodiment may further select an optimal operating point of the engine according to the input side information of the engine and the output side information of the generator, thereby improving the operating efficiency of the range extender.
As a preferred embodiment of the present invention, with reference to fig. 4, the integrated controller includes:
a storage unit for storing data;
the operation unit is bidirectionally connected with the storage unit and is used for calculating the data stored in the storage unit;
and the control unit is unidirectionally connected with the storage unit and the operation unit and is used for simultaneously controlling data transmission and data calculation between the storage unit and the operation unit.
Specifically, the memory unit may be a whole module or may be divided into two modules as shown in fig. 4. When the storage unit is two modules, the data of the engine and the generator can be stored in the two modules respectively, so that the data can be stored conveniently. The two storage units are respectively used for being connected with the engine and the generator, the operation unit and the storage units can be in two-way communication, and the control unit and the other two units are in one-way control. The illustrated structure is only for illustrating the application function of the present example, and may represent, but does not completely include, the actual structure thereof.
In this embodiment, the storage unit may include a high-speed Random Access Memory (RAM), a read-only Memory (ROM), a CACHE Memory (CACHE), or the like, or may include a non-volatile Memory (non-volatile Memory), such as at least one disk Memory; the control unit is a command control center of the whole integrated controller and can be composed of an instruction register IR (instruction register), an instruction decoder ID (instruction decoder) and an operation controller OC (operation controller); the arithmetic unit completes the operation through a logic circuit formed by extremely tiny components of an electronic circuit, and the arithmetic unit cooperates with the control unit to complete the work.
Example 4
In this embodiment, a range extender is provided, the range extender comprising:
an engine, a generator, and the range extender control device of any one of embodiment 3.
In the conventional range extender, the engine and the generator are respectively provided with a separate controller, as shown in fig. 5. The information interaction between the two controllers needs to transmit data information through external interface equipment, and when the engine runs at a high speed, the two controllers cannot realize the rapid data transmission, namely cannot realize the cooperative control of the rotating speeds of the engine and the generator.
The range extender provided in this embodiment is shown in fig. 6, and controls the engine and the generator simultaneously through an integrated controller. When the range-extended engine works at a high speed, the integrated controller can collect, transmit and calculate data information of the engine and the generator, and further implement a series of control operations, wherein the speed of the integrated controller can meet the range-extended controller control method in any one of embodiment 1. Namely, at any working moment of the extended-range engine, the abrasion of the engine is estimated and offset by a load curve, so that the rotating speed of the engine is stabilized, abnormal sound caused by mutual impact of gears between the generator and the engine is avoided, the NVH problem of the system is solved, and the working stability of the system is improved. After the process, the integrated controller can also select the optimal working point of the engine according to the input side information of the engine and the output side information of the generator, so that the working efficiency of the range extender is improved.
Example 5
In this embodiment, a storage medium is provided, on which a range extender control program is stored, which when executed implements the range extender control method of any one of embodiments 1.
Specifically, the range extender control method in embodiment 1 is implemented in the form of a software function and may be stored in a storage medium when being sold or used as a separate product, and the range extender control method in embodiment 1 is implemented by executing software in the storage medium when being used. The storage medium in this embodiment may be a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, an optical disk, or other various media that can store program codes.
Example 6
In this embodiment, with reference to fig. 1, an electronic device is provided, which includes:
a processor;
a storage medium; the storage medium stores a range extender control program executable on the processor, and the processor implements the range extender control method according to any one of embodiment 1 when executing the range extender control program.
Specifically, in addition to the above-described manner of directly selling and using the storage medium, it is more common to combine the storage medium with a processor to obtain an electronic device. The storage medium and the processor are in data communication via a bus, or the storage medium is directly integrated into the processor. The Processor of this embodiment may be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), and the like; but may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, etc.
Example 7
In this embodiment, a vehicle is provided with the range extender of embodiment 4.
The vehicle of the present embodiment is a range-extended electric vehicle, and the range extender provided in embodiment 4 is installed inside the vehicle. When the vehicle runs, the abrasion of the engine can be estimated and offset by a load curve at any working time of the extended-range engine, so that the rotating speed of the engine is stabilized, abnormal sound caused by mutual impact of gears between the generator and the engine is avoided, the problem of system NVH is solved, and the working stability of the vehicle is improved. After the process, the optimal working point of the engine can be selected according to the input side information of the engine and the output side information of the generator, and the working efficiency of the range extender is further improved.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. A range extender control device, comprising:
the real-time information acquisition module is used for acquiring real-time information of an engine and a generator, wherein the real-time information of the engine at least comprises a rotating speed, a rotating speed change rate and a load, and the real-time information of the generator at least comprises a torque;
the calculation module is used for estimating the wear consumption of the engine according to the real-time information of the engine and the generator;
and the compensation module is used for compensating the abrasion consumption through a load curve of the engine so as to enable the engine to output a stable rotating speed.
2. The range extender control device of claim 1, further comprising:
the optimization module is used for selecting the optimal working point of the engine according to the input side information of the engine and the output side information of the generator; the input side information of the engine at least comprises an oil injection amount and a throttle angle, and the output side information of the generator at least comprises a power generation amount or power generation power.
3. A range extender control device, comprising:
the integrated controller is used for simultaneously controlling the engine and the generator; the integrated controller is used for acquiring real-time information of the engine and the generator, estimating the abrasion consumption of the engine according to the real-time information of the engine and the generator, and compensating the abrasion consumption through a load curve of the engine so as to enable the engine to output a stable rotating speed;
the real-time information of the engine at least comprises a rotating speed, a rotating speed change rate and a load, and the real-time information of the generator at least comprises a torque.
4. The range extender control device of claim 3, wherein said integrated controller comprises:
a storage unit for storing data;
the operation unit is bidirectionally connected with the storage unit and is used for calculating the data stored in the storage unit;
and the control unit is unidirectionally connected with the storage unit and the operation unit and is used for simultaneously controlling data transmission and data calculation between the storage unit and the operation unit.
5. A range extender, comprising:
an engine, a generator and a range extender control device as claimed in any one of claims 1 to 4.
6. A vehicle, characterized in that the vehicle is provided with a range extender as claimed in claim 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120655148.4U CN215097538U (en) | 2021-03-31 | 2021-03-31 | Range extender control device, range extender and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120655148.4U CN215097538U (en) | 2021-03-31 | 2021-03-31 | Range extender control device, range extender and vehicle |
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| CN215097538U true CN215097538U (en) | 2021-12-10 |
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| CN202120655148.4U Withdrawn - After Issue CN215097538U (en) | 2021-03-31 | 2021-03-31 | Range extender control device, range extender and vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112896141A (en) * | 2021-03-31 | 2021-06-04 | 吉林大学 | Range extender control method and device, storage medium, electronic equipment and vehicle |
-
2021
- 2021-03-31 CN CN202120655148.4U patent/CN215097538U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112896141A (en) * | 2021-03-31 | 2021-06-04 | 吉林大学 | Range extender control method and device, storage medium, electronic equipment and vehicle |
| CN112896141B (en) * | 2021-03-31 | 2024-04-16 | 吉林大学 | Range extender control method and device, storage medium, electronic equipment and vehicle |
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