CN111976704A - Control method, device and system of range-extending type electric automobile - Google Patents
Control method, device and system of range-extending type electric automobile Download PDFInfo
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- CN111976704A CN111976704A CN202010509376.0A CN202010509376A CN111976704A CN 111976704 A CN111976704 A CN 111976704A CN 202010509376 A CN202010509376 A CN 202010509376A CN 111976704 A CN111976704 A CN 111976704A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/24—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
- B60W10/26—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
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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
Abstract
The invention discloses a control method, a device and a system of a range-extended electric automobile, wherein the method comprises the steps of acquiring running data of the automobile in real time; when the operating data meet the ignition condition, controlling the power battery to supply power to the range extender assembly, and controlling the engine to run at a preset rotating speed and ignite; and when an ignition signal is detected, controlling the power battery to stop supplying power to the range extender assembly, and controlling the range extender assembly to supply power to the driving motor according to the power demand data in the operation data. According to the control method, the device and the system for the extended range electric automobile, provided by the embodiment of the invention, the vehicle is subjected to fine control through the specific power follow-up mode, the comprehensive performance of the vehicle can be effectively improved, and the control strategy of the extended range electric automobile is optimized.
Description
Technical Field
The invention relates to the technical field of new energy automobile control, in particular to a control method, a device and a system of a range-extended electric automobile.
Background
The range-extended electric automobile can achieve all power performances under a pure electric mode, and when the vehicle-mounted rechargeable energy storage system cannot meet the requirement of the endurance mileage, the vehicle-mounted auxiliary power supply device is turned on to provide electric energy for the power system so as to prolong the endurance mileage. The extended range electric vehicle completes relevant control strategies during operation by the vehicle control unit.
At present, the control method of the extended range electric vehicle emphasizes on energy supply to a power battery during running of the electric vehicle so as to achieve the purposes of high endurance and extended driving range, but on one hand, energy inevitably generates loss when entering the battery, which can generate great influence on oil consumption of the electric vehicle, and on the other hand, the excessive supply of the energy of the battery can cause that the output power of the vehicle becomes unstable, and the power performance of the vehicle is greatly reduced along with great noise step.
Disclosure of Invention
The embodiment of the invention provides a control method, a device and a system of a range-extended electric vehicle, and aims to solve the technical problem that the conventional control method of the range-extended electric vehicle can influence the power performance of a vehicle. The vehicle is finely controlled through a specific power follow-up mode, and the comprehensive performance of the vehicle can be effectively improved.
An embodiment of the present invention provides a method for controlling an extended range electric vehicle, including:
acquiring running data of a vehicle in real time;
when the operating data meet the ignition condition, controlling the power battery to supply power to the range extender assembly, and controlling the engine to run at a preset rotating speed and ignite;
and when an ignition signal is detected, controlling the power battery to stop supplying power to the range extender assembly, and controlling the range extender assembly to supply power to the driving motor according to the power demand data in the operation data.
Preferably, when the range extender assembly supplies power to the driving motor, the vehicle control unit controls the power battery to switch between a charging mode and a charging stop mode according to the current residual capacity of the power battery in the operation data.
Preferably, the operation data includes the current remaining capacity of the power battery, an acceleration signal, a braking signal, a vehicle speed signal and the power demand data.
Preferably, the ignition conditions are specifically:
the acceleration signal is detected and the magnitude of the power demand data is less than or equal to the magnitude of the maximum output power of the range extender assembly.
Preferably, the method further comprises the following steps:
and correspondingly controlling the electric automobile to switch between the running modes according to the received running data.
Preferably, the operation modes include a standby mode, a pure electric mode, a power follow-up mode, a power-assisted driving mode, a coasting mode, a braking energy recovery mode and a mechanical braking mode.
Preferably, the preset rotating speed is 900-1200 rpm.
Another embodiment of the present invention provides a control apparatus for an extended range electric vehicle, including a vehicle controller configured to:
acquiring running data of a vehicle in real time;
when the operating data meet the ignition condition, controlling the power battery to supply power to the range extender assembly, and controlling the engine to run at a preset rotating speed and ignite;
and when an ignition signal is detected, controlling the power battery to stop supplying power to the range extender assembly, and controlling the range extender assembly to supply power to the driving motor according to the power demand data in the operation data.
The invention further provides a control system of the range-extended electric vehicle, which comprises a range extender assembly, a power battery, a high-voltage distribution box, a driving motor, a motor controller and the vehicle control unit;
the range extender assembly comprises an engine, an engine controller, a generator and a generator controller;
the vehicle control unit controls the working states of the engine and the generator by controlling the engine controller and the generator controller; and the vehicle control unit is also used for controlling the working states of the motor controller and the power battery.
Preferably, the engine controller, the vehicle control unit, the motor controller and the generator controller are integrated into a whole.
Compared with the prior art, the embodiment of the invention has the beneficial effects that by detecting various operation data reflecting the real-time working conditions of the vehicle, each core power device in the extended range electric vehicle is respectively controlled to perform matching actions by preset method steps, mainly based on power follow-up, the output power of the vehicle is preferentially ensured to meet the requirements of actual driving, power generation and oil consumption, the comprehensive power performance of a driving system is improved, meanwhile, the noise, vibration and emission of the vehicle are greatly improved, the management and control strategy of the extended range electric vehicle is further optimized, the effective utilization rate of fuel is improved, and the driving experience of a driver is ensured.
Drawings
FIG. 1 is a schematic flow chart illustrating a method for controlling an extended range electric vehicle according to an embodiment of the present invention;
FIG. 2 is a schematic illustration of a combined operating curve in an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a control device of an extended range electric vehicle according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of the operation modes of the extended range electric vehicle according to the embodiment of the present invention;
wherein, 1, extend journey ware assembly; 11. an engine; 12. an engine controller; 13. a generator; 14. a generator controller; 2. a power battery; 3. a high voltage distribution box; 4. a drive motor; 5. a motor controller; 6. a vehicle control unit; 7. a differential mechanism; 81. a rear wheel; 82. a rear wheel; 9. a DC/DC converter; a Vehicle Control Unit (VCU); an extender Assembly (APU); an Engine Controller (ECU); a Generator Controller (GCU); a Motor Controller (MCU); high voltage distribution boxes (PDU).
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present application, it is to be understood that the terms "first", "second", "third", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first," "second," "third," etc. may explicitly or implicitly include one or more of the features. In the description of the present application, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
In the description of the present application, it is to be noted that, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention, as those skilled in the art will recognize the specific meaning of the terms used in the present application in a particular context.
An embodiment of the present invention provides a method for controlling a range-extended electric vehicle, and specifically, please refer to fig. 1, where fig. 1 is a schematic flow chart of the method for controlling a range-extended electric vehicle according to the embodiment of the present invention, where the method includes:
s101, acquiring running data of a vehicle in real time;
s102, when the operation data meet the ignition condition, controlling a power battery to supply power to the range extender assembly, and controlling the engine to run at a preset rotating speed and ignite;
s103, when an ignition signal is detected, the power battery is controlled to stop supplying power to the range extender assembly, and the range extender assembly is controlled to supply power to the driving motor according to power demand data in the operation data.
Please refer to fig. 2, fig. 2 is a schematic diagram of a combined operation curve provided in an embodiment of the present invention, and in this embodiment, the real-time output power of the range extender assembly is controlled according to the combined operation curve as shown in the figure, and the power follow-up is mainly used to preferentially ensure that the output power of the vehicle meets the requirements of actual driving, power generation and oil consumption, so as to improve the comprehensive power performance of the driving system. The control method provided by the embodiment of the invention has the idea that the output power of the vehicle is preferentially ensured to meet the requirements of actual driving, power generation and oil consumption, the range extender assembly is effectively utilized to provide necessary power output for the whole vehicle through reasonably setting method steps, the energy is fed into the power battery less or not in the unnecessary condition, so that the control strategy of the electric energy is optimized, and the comprehensive power performance of the driving system is improved.
Preferably, in the above embodiment, when the range extender assembly supplies power to the driving motor, the vehicle control unit controls the switching of the charging mode of the power battery, namely, starting the charging mode of the power battery and stopping the charging mode of the power battery according to the current remaining capacity of the power battery in the operation data.
Preferably, in this embodiment, the operation data includes a current remaining capacity SOC of the power battery, an acceleration signal AS, a brake signal BS, a vehicle speed signal VS, and the power demand data VP, where AS is equal to 1 when there is an acceleration signal, and AS is equal to 0 otherwise, BS is equal to 1 when there is a brake signal, and BS is equal to 0 otherwise, and VS is different from AS and BS, the vehicle speed signal is a continuously changing value, and the power demand data is also a continuously changing value.
In the above embodiment, the ignition conditions are specifically: the vehicle control unit detects that the acceleration signal AS is equal to 1 and no braking signal is detected, that is, BS is equal to 0, and the power demand data VP is less than or equal to the maximum output power P of the range extender assemblymax。
Preferably, in the embodiment of the present invention, the vehicle controller correspondingly controls the electric vehicle to switch the operation modes according to the received operation data, where the operation modes include a standby mode, a pure electric mode, a power follow-up mode, an assisted driving mode, a coasting mode, a braking energy recovery mode, and a mechanical braking mode.
Preferably, in the embodiment of the present invention, the preset rotation speed is 900 to 1200 rpm.
Another embodiment of the present invention provides a control device of a range-extended electric vehicle, specifically, please refer to fig. 3, fig. 3 is a schematic structural diagram of the control device of the range-extended electric vehicle according to the embodiment of the present invention, where the control device includes a range extender assembly 1, a power battery 2, a high-voltage distribution box 3, a driving motor 4, a motor controller 5 and a vehicle control unit 6, the driving motor 4 realizes specific driving control of a rear wheel 81 and a rear wheel 82 through a differential 7, and the control device according to the present invention is suitable for a single-driving-motor front-drive vehicle type, a single-driving-motor rear-drive vehicle type, a single-driving-motor four-drive vehicle type, a dual-driving-motor four-drive vehicle type and a wheel-hub driving-motor vehicle type (i.e., realizes specific driving control of a front wheel and/or a.
Preferably, the range extender assembly 1 comprises an engine 11, an engine controller 12, a generator 13 and a generator controller 14; a first port of the high-voltage distribution box 3 is connected with the driving motor 4 through the motor controller 5, a second port of the high-voltage distribution box 3 is connected with the generator controller 14, and a third port of the high-voltage distribution box 3 is connected with the power battery 2; the fourth port of the high voltage distribution box 3 is connected to a fixed 12V battery via an associated DC/DC converter 9 for voltage conversion.
It should be noted that, with the continuous development of the integration technology, the control device of the extended range electric vehicle provided in the embodiment of the present invention is also applicable to the case where the functions of various components are integrated, for example, in a preferred embodiment, the engine controller, the vehicle control unit, the motor controller and the generator controller are integrated into a whole, and the integrated structure can effectively reduce the volume of the electric vehicle.
The vehicle control unit controls the working states of the engine and the generator by controlling the engine controller and the generator controller; the vehicle control unit is also used for controlling the working states of the motor controller and the power battery; of course, the vehicle control unit is also used for controlling the related DC/DC converter to further ensure that the conversion of the electric energy is in accordance with the preset.
In the embodiment, the electric energy mainly goes to the second place, namely, the generator controller GCU → the high-voltage distribution box PDU → the motor controller MCU → the drive motor, so as to drive the whole vehicle to run; the generator controller GCU → the high voltage distribution box PDU → the battery (including a power battery or a low voltage 12V storage battery, preferably a power battery in this embodiment) is stored as a backup energy source. When the vehicle is suitable, the power battery discharges to supply a driving motor, the vehicle is driven, and the range extender assembly and other components are reasonably controlled by using the VCU of the vehicle controller, so that the working modes are switched quickly and efficiently, the structure is simple, the control is convenient and fast, external charging is not needed, the optimal capacity is less than 3kW.h, the discharge rate is 10-20 times of that of the power type power battery, the vehicle cost is greatly reduced, the noise, vibration and emission of the vehicle are greatly improved, and the driving experience of a driver is effectively improved.
The vehicle control unit is a core component of the whole electric vehicle and is equivalent to the brain of the vehicle. The vehicle will be used for reflecting the vehicle through a plurality of data collection station the operating data of operating mode sends vehicle control unit to, and vehicle control unit makes corresponding judgement, and each part of control lower floor moves in order, and the drive vehicle normally goes, and it plays the important role of control vehicle operation, and is concrete, and it is configured as:
detecting the operating condition information of the vehicle in real time, and receiving the acquired operating data of the vehicle;
when the operating data meet the ignition condition, the power battery is controlled to supply power to the range extender assembly through the high-voltage distribution box, so that the generator controller can control the working state of the generator, and the engine is further controlled to operate at a preset rotating speed and ignite;
when the engine controller receives an ignition signal, controlling the power battery to stop supplying power; and meanwhile, according to the power demand data in the operation data, the range extender assembly is correspondingly controlled to supply power to the driving motor through the motor controller, so that the output power curve of the range extender assembly is attached to a combined operation curve commonly established by the optimal power generation efficiency curve of the generator and the universal characteristic curve of the engine.
Under the control, the vehicle enters a power follow-up mode, so that the output power of the vehicle is ensured to meet the requirements of actual driving, power generation and oil consumption, and the comprehensive power performance of a driving system is improved, in other words, when power demand data VP is detected to be less than or equal to PmaxWhen BS is 0 and AS is 1, the power battery supplies power, electric energy is transmitted to the generator controller GCU by the high-voltage distribution box PDU and then to the range-extended generator, the range-extended generator reversely drags the engine to 900-1200 rpm, the engine controller ECU sends out a control signal, and the engine ignites. When the engine is ignited, the power battery receives a power-off signal sent by the VCU of the vehicle controller to stop supplying power, namely, the power battery enters a power follow-up mode to drive the vehicle, and the power required by the vehicle is completely provided by the power generation of the range extender.
Specifically, referring to fig. 4, fig. 4 is a schematic view of each operation mode of the extended range electric vehicle according to the embodiment of the present invention, except for the power follow-up mode, the embodiment of the present invention further includes other six modes, so that the electric vehicle is switched to the corresponding operation mode according to the actual requirement, which is favorable for the fine management of the extended range electric vehicle.
AS shown in fig. 4, the standby mode is a state in which when the entire vehicle is in the power-on state, the no-acceleration signal AS is 0, the drive motor is not operated, and the vehicle speed VS is 0.
The pure electric mode refers to a state that the current residual capacity SOC of the power battery is more than or equal to 50%, a brake signal BS is 0 and an acceleration signal AS is 1, the power battery supplies power at the moment, electric energy is transmitted to the motor controller MCU through the high-voltage distribution box PDU and then to the driving motor to drive the whole vehicle to run, and preferably, when the vehicle controller VCU detects that a vehicle speed signal VS is more than 30km/h or power demand data VP is more than 15kW or the SOC of the power battery is less than 20%, the pure electric mode is finished.
The power-assisted driving mode refers to a state that a vehicle speed signal VS is more than 0, a braking signal BS is 0 and an accelerating signal AS is 1, and at the moment, when the power demand VP of the whole vehicle is larger than the maximum generating power P of the range extendermaxAnd meanwhile, the VCU of the vehicle control unit sends a power-assisted signal to the power battery, and the insufficient power is complemented by the power battery. The power battery and the range extender jointly drive the whole vehicle, namely in a battery power-assisted driving mode, and preferably, when the current residual capacity SOC of the power battery is less than 20%, or AS is 0, or VS is 0, or BS is 1, the power-assisted driving mode is exited.
The coasting mode refers to a state that a vehicle speed signal VS is not equal to 0, a brake signal BS is 0 and no acceleration signal AS is 0, at this time, the VCU of the whole vehicle controller sends a distance increasing device stop power generation signal, and the ECU of the engine controller controls the engine to shut down and the whole vehicle to coast after receiving the signal. In the whole vehicle sliding process, preferably, if the vehicle control unit VCU detects that the current remaining capacity SOC of the power battery is less than 30%, the vehicle control unit VCU sends an instruction to the motor controller MCU at the time, the motor controller MCU controls the driving motor to generate power, and at the time, the electric energy directly enters the power battery to be stored after passing through the high-voltage distribution box PDU until the sliding mode is finished or the charging is finished when the current remaining capacity SOC of the battery is greater than or equal to 90%.
The braking energy recovery mode means that a braking energy recovery system intervenes when a braking signal BS is equal to 1 and a vehicle speed signal VS is not equal to 0, a vehicle control unit VCU sends an instruction to a motor control unit MCU, the motor control unit MCU controls a driving motor to generate electricity, at the moment, electric energy directly enters a power battery to be stored after passing through a high-voltage distribution box PDU, and preferably, under the condition that the braking energy recovery system intervenes, the battery receives the electric energy generated by braking until the power battery is fully charged as long as the power battery is not in a full-charge state. When the vehicle control unit VCU detects that the braking signal BS is equal to 1 and the acceleration signal AS is equal to 1, it determines that the vehicle control unit VCU is malfunctioning, and performs mechanical braking according to the braking priority principle, and the braking energy recovery system does not participate in the above-described operation.
The mechanical braking mode refers to a state when the braking signal BS is 1, the current remaining capacity SOC of the battery is greater than or equal to 95%, and the braking energy recovery system does not participate in the above work.
The control method, the device and the system for the extended range electric automobile have the advantages that various operation data reflecting real-time working conditions of the automobile are detected, core power devices in the extended range electric automobile are respectively controlled to perform matching actions according to preset method steps, power follow-up is taken as a main part, the output power of the automobile is preferentially ensured to meet the requirements of actual driving, power generation and oil consumption, the comprehensive power performance of a driving system is improved, meanwhile, noise, vibration and emission of the automobile are greatly improved, management and control strategies of the extended range electric automobile are further optimized, the effective utilization rate of fuel is improved, and the driving experience of a driver is guaranteed.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (10)
1. A control method of an extended range electric vehicle is characterized by comprising the following steps:
acquiring running data of a vehicle in real time;
when the operating data meet the ignition condition, controlling the power battery to supply power to the range extender assembly, and controlling the engine to run at a preset rotating speed and ignite;
and when an ignition signal is detected, controlling the power battery to stop supplying power to the range extender assembly, and controlling the range extender assembly to supply power to the driving motor according to the power demand data in the operation data.
2. The control method of the extended range electric vehicle according to claim 1, wherein the vehicle controller controls the power battery to perform the switching between the charging mode and the stop charging mode according to the current remaining capacity of the power battery in the operation data when the range extender assembly supplies power to the driving motor.
3. The control method of the extended range electric vehicle according to claim 1 or 2, wherein the operation data includes a current remaining capacity of a power battery, an acceleration signal, a brake signal, a vehicle speed signal, and the power demand data.
4. The control method of the extended range electric vehicle according to claim 3, wherein the ignition conditions are specifically:
the acceleration signal is detected and the magnitude of the power demand data is less than or equal to the magnitude of the maximum output power of the range extender assembly.
5. The method of controlling an extended range electric vehicle of claim 1, further comprising:
and correspondingly controlling the electric automobile to switch between the running modes according to the received running data.
6. The control method of the extended range electric vehicle of claim 5, wherein the operating modes comprise a standby mode, an electric-only mode, a power follow-up mode, a power-assisted drive mode, a coast mode, a braking energy recovery mode, and a mechanical braking mode.
7. The method as claimed in claim 1, wherein the predetermined rotation speed is 900 to 1200 rpm.
8. A control apparatus of an extended range electric vehicle, comprising a vehicle control unit configured to:
acquiring running data of a vehicle in real time;
when the operating data meet the ignition condition, controlling the power battery to supply power to the range extender assembly, and controlling the engine to run at a preset rotating speed and ignite;
and when an ignition signal is detected, controlling the power battery to stop supplying power to the range extender assembly, and controlling the range extender assembly to supply power to the driving motor according to the power demand data in the operation data.
9. The control system of the range-extended electric automobile is characterized by comprising a range extender assembly, a power battery, a high-voltage distribution box, a driving motor, a motor controller and the vehicle control unit according to claim 8;
the range extender assembly comprises an engine, an engine controller, a generator and a generator controller;
the vehicle control unit controls the working states of the engine and the generator by controlling the engine controller and the generator controller; and the vehicle control unit is also used for controlling the working states of the motor controller and the power battery.
10. The control system of the extended range electric vehicle of claim 9, wherein the engine controller, the vehicle controller, the motor controller, and the generator controller are an integrated structure.
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Cited By (3)
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| CN113879142A (en) * | 2021-09-13 | 2022-01-04 | 合众新能源汽车有限公司 | Intelligent emergency starting system and method for range-extended electric automobile |
| CN114435343A (en) * | 2022-03-09 | 2022-05-06 | 东风汽车集团股份有限公司 | Vehicle anchoring self-rescue control method, device and system |
| CN117141246A (en) * | 2023-08-31 | 2023-12-01 | 内蒙古山河巨鼎矿用机械制造有限责任公司 | Range-extending type hybrid power mining card driving system and method |
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