CN109501629B - Charging system and method for charging device based on range extender development - Google Patents
Charging system and method for charging device based on range extender development Download PDFInfo
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- CN109501629B CN109501629B CN201811370535.2A CN201811370535A CN109501629B CN 109501629 B CN109501629 B CN 109501629B CN 201811370535 A CN201811370535 A CN 201811370535A CN 109501629 B CN109501629 B CN 109501629B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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Abstract
The invention discloses a charging system and a charging method for a charging device based on range extender development, which solve the problem that the range extender is affected by severe changes of power required by a charging pile to generate severe fluctuation, and the technical scheme is characterized in that: the charging system and the method for the charging device based on the range extender development can enable the range extender to actively determine the output power of the range extender according to the self condition, so that the output power of the charging pile changes along with the output power change of the range extender, thereby reducing the transmission time of messages at the engine end to make up the defect of slow response of an engine, and avoiding the phenomenon that the range extender is influenced by the required power of the charging pile and cannot timely adjust the output power of the range extender to cause severe fluctuation and even direct shutdown.
Description
Technical Field
The invention relates to the field of electric automobile charging, in particular to a charging system and method for a charging device based on range extender development.
Background
At present, a pure electric vehicle and a plug-in hybrid electric vehicle are rapidly being industrialized, and thus a vertical charging pile and a wall-mounted charging device are becoming popular.
The input side of a traditional charging pile is connected with a power grid, the input power is infinite, the output power only depends on the charging requirement of a charged vehicle, the input side power does not need to be considered, the charging pile developed based on a range extender is limited by the working environment, the input side is connected with a power battery of the whole vehicle, once the required power of the charging pile fluctuates sharply (namely, the power fluctuation is sharply increased or sharply reduced), particularly, when the required power of the charging pile is sharply reduced (at present, the required power is mostly unloaded when charging is finished or the charging pile breaks down due to faults), the range extender cannot respond to the power change of the charging pile in time due to the limitation of the response time of an engine, at the moment, the load of the range extender is suddenly changed into 0, the actual output power is not reduced in time, namely, the load is small, the output power of the range extender is large, the engine can overspeed, further enters overspeed protection, limited by the response time of the engine, the range extender cannot respond to the power change of the charging pile in time, the load of the range extender is increased at the moment, the actual output power is not increased in time, namely, the load is large, the output power is small, and the engine can be extinguished.
In conclusion, the range extender is influenced by the power demand of the charging pile which changes rapidly, severe fluctuation is easy to generate, even the phenomenon of direct shutdown occurs, and the range extender has an improved space.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to enable the range extender to actively determine the output power of the range extender according to the self condition and enable the output power of the charging pile to change along with the change of the output power of the range extender, thereby reducing the transmission time of messages at the engine end to make up the defect of slow response of an engine and avoiding the phenomenon that the range extender is influenced by the required power of the charging pile and cannot adjust the output power of the range extender in time to cause severe fluctuation and even direct shutdown.
The technical purpose of the invention is realized by the following technical scheme:
a charging system for a charging device based on range extender development comprises a charging pile, the charging system for the charging device based on range extender development comprises a communication device, a range extender and a required power detection device, the communication device is arranged in the charging pile and used for receiving data detected by a battery parameter detection module, the range extender is communicated with the communication device, the required power detection device is arranged in the charging pile and used for detecting required power of a charged vehicle in real time, the range extender is defined to comprise an engine, a motor, a control terminal, an engine control device controlled by the control terminal and used for controlling the engine independently, and a motor control device controlled by the control terminal and used for controlling the motor independently;
the charging system for the charging device developed based on the range extender further comprises a rotating speed and torque distribution module arranged in the control terminal, and a rotating speed and torque database which is arranged in the control terminal and stores an engine rotating speed value and a motor torque value which are matched with the actual output power of the range extender, wherein the engine rotating speed value n, the motor torque value T and the actual power P of the range extender meet the following formula T = 9550P/n;
the control terminal interactively communicates with the communication device to acquire the required power of the charged vehicle detected by the required power detection device, and the required power of the charged vehicle is taken as the maximum limit power at the first time when the required power of the charged vehicle is acquired;
if the maximum limit power exceeds the maximum output power which can be provided by the range extender, the control terminal takes the maximum output power which can be provided by the range extender as the initial output power of the range extender to inquire a motor torque value matched with the actual output power of the range extender and a rotating speed value of the engine in a rotating speed torque database, the rotating speed torque distribution module enables the rotating speed value of the engine to reach the rotating speed value of the engine matched with the initial output power of the range extender through an engine control device, and meanwhile, the torque value of the motor reaches the motor torque value matched with the initial output power of the range extender through the motor control device;
on the contrary, when the maximum limit power is smaller than the maximum output power which can be provided by the range extender, the control terminal takes the maximum limit power as the initial output power of the range extender to inquire a motor torque value matched with the initial output power of the range extender and a rotating speed value of the engine in a rotating speed torque database, the rotating speed torque distribution module enables the rotating speed value of the engine to reach the rotating speed of the engine matched with the initial output power of the range extender through the engine control device, and simultaneously enables the torque value of the motor to reach the motor torque value matched with the initial output power of the range extender through the motor control device;
the output power of the range extender is slowly and linearly adjusted upwards from zero power, the output power of the range extender is kept continuously output after the output power of the range extender reaches the initial output power, the subsequent output power is linearly adjusted downwards when the residual electric quantity of the charged vehicle detected by the battery parameter detection module reaches a first preset value of the control terminal, and the power output is stopped when the residual electric quantity of the charged vehicle reaches a second preset value of the control terminal.
By adopting the scheme, the control terminal can communicate the required power (defined as the maximum limit power) of the charged vehicle with the range extender in time through the communication device when the charging pile has the required power, simultaneously combines the maximum power provided by the determined range extender, determines the initial output power of the range extender by comparing the maximum power provided by the range extender with the maximum limit power, indirectly controls the torque of the motor and the rotating speed of the engine through the rotating speed and torque distribution module after determining the initial output power, enables the output power of the range extender to be slowly and linearly adjusted to be consistent with the initial output power set by the control device, keeps the range extender to continuously output power according to the initial output power in the early period, improves the charging efficiency of the charged vehicle, and avoids the condition that the required power suddenly drops when the residual electric quantity is 100 percent, the output power of the range extender can be linearly adjusted down in time when the residual electric quantity of the charged vehicle is large through the first preset value and the second preset value which are set by the control terminal, and the stability of the charging system for the charging device developed based on the range extender in operation is improved.
Preferably, the charging system for the charging device developed based on the range extender further comprises a first power detection device arranged in the charging pile and used for detecting real-time output power in the charging pile, a second power detection device arranged in the motor control device and used for detecting real-time output power of the range extender, and an alarm device, wherein the real-time output power of the charging pile detected by the first power detection device is defined as first power data, and the real-time output power of the range extender detected by the second power detection device is defined as second power data;
and when the difference value of the first power data and the second power data exceeds the preset range of the control terminal, starting the alarm device to give an alarm, controlling the control terminal to stop the power output of the range extender, sending a zero power request instruction to the charging pile, and setting the output power requirement of the charging pile to be 0.
By adopting the scheme, whether the output power of the charging pile is consistent with the output power of the range extender or not can be effectively determined through the first power data determined by the first power detection device and the power data determined by the second power detection device, an alarm is given through the alarm device when the power of the charging pile is inconsistent with the power of the range extender, the power output of the range extender is stopped in time, and the required power of the charging pile is set to be 0.
Preferably, the charging system for the charging device based on range extender development further comprises a charging change curve database which stores the change of the power required by the charged vehicle along with time and the initial output power of the range extender matched with the power required by the charged vehicle;
the control terminal takes the communication time between the communication device and the range extender as a time difference, acquires the required power of the charged vehicle and the initial output power of the range extender after the time shift from the charging change curve database according to the corresponding time difference of the current time shift, and the rotating speed and torque distribution module enables the rotating speed value of the engine to reach the rotating speed of the engine matched with the initial output power of the range extender in advance through the engine control device and enables the torque value of the motor to reach the motor torque value matched with the initial output power of the range extender in advance through the motor control device.
By adopting the scheme, the required power of the charged vehicle acquired by the range extender is not the required power of the charged vehicle immediately due to the required communication time between the communication device and the range extender by combining the control terminal and the charging change curve database, so that the maximum limit power acquired by the control terminal is small, and the output power of the range extender is influenced.
The invention aims to ensure that the range extender actively determines the output power of the range extender according to the self condition, so that the output power of the charging pile changes along with the change of the output power of the range extender, thereby reducing the transmission time of messages at the engine end to make up the defect of slow response of an engine, and avoiding the phenomenon that the range extender is influenced by the required power of the charging pile and cannot timely adjust the output power of the range extender to cause severe fluctuation and even direct shutdown.
S1, establishing communication between a charging pile and a range extender, and determining initial output power of the range extender;
and S2, the range extender sends the initial output power of the range extender to the charging pile as a power request instruction of the charging pile, and the output power of the charging pile and the output power of the range extender are ensured to be consistent.
By adopting the scheme, the communication between the range extender and the charging pile can be established through the setting of the step S1, and the setting of the step S2 can effectively ensure that the output power of the charging pile is consistent with the output power of the range extender on the basis of the step S1, so that the phenomena of fluctuation and shutdown of the range extender are greatly reduced.
Preferably, S1 includes the steps of:
s1.1: before the range extender charges the charged vehicle, acquiring the required power of the charged vehicle in advance through the communication device, taking the required power as the maximum limiting power, and timely sending the maximum limiting power to the range extender through the communication device;
s1.2: determining the initial output power of the range extender based on the comparison result of the maximum power and the maximum limit power which can be provided by the range extender, wherein if the maximum power which can be provided by the range extender exceeds the maximum limit power, the maximum limit power is used as the initial output power of the range extender; on the contrary, if the maximum power that can be provided by the range extender is smaller than the maximum limit power, the maximum power that can be provided by the range extender is used as the initial output power of the range extender.
With the above arrangement, the setting of step S1.1 may determine the maximum power limit based on the initial power requirement of the vehicle being charged, and the setting of step S1.2 may determine the initial output power of the range extender based on a comparison of the maximum power limit and the range extender.
Preferably, S2 includes the steps of:
s2.1: the charging pile acquires the initial output power of the range extender through communication with the communication device, gradually increases the output power of the range extender from zero to the initial output power and keeps the continuous output of the initial output power;
s2.2: when the residual electric quantity of the charged vehicle reaches a first preset value preset by the control terminal, the output power of the range extender is slowly and linearly reduced, and meanwhile, the actual output power request of the charging pile is actively and synchronously adjusted by being limited by the change of the output power of the range extender;
s2.3: when the residual electric quantity of the charged vehicle is a second preset value preset by the control terminal, the output power of the range extender is reduced to be 0, and the power output of the range extender is stopped.
By adopting the scheme, the output power of the charging pile is ensured to be synchronous from zero to the initial power through slow linear up-regulation in the initial stage under the initial power determination of the range extender by the setting of the step S2.1) and the power output is carried out according to the initial power of the range extender, the output power of the range extender can be timely reduced when the residual electric quantity in the charged vehicle is more, the power output of the range extender can be timely stopped when the electric quantity of the charged vehicle is full, namely the charging is not needed, and the power output of the range extender is timely stopped due to the setting of the step S2.3, so that the instantaneity of the range extender in the power reduction process is effectively avoided due to the setting of the step S2.3.
Drawings
Fig. 1 is a system block diagram of a charging system for a charging device developed based on a range extender;
FIG. 2 is a first system block diagram of a charging method for a charging device based on range extender development;
FIG. 3 is a second system block diagram of a charging method for a charging device based on range extender development;
fig. 4 is a system block diagram three of a charging method for a charging device developed based on a range extender.
Reference numerals: 1. charging piles; 2. a communication device; 3. a battery parameter detection module; 4. an engine; 5. a motor; 6. a control terminal; 7. an engine control device; 8. a motor control device; 9. a rotational speed and torque distribution module; 10. a rotational speed torque database; 12. a first power detection means; 13. a second power detection means; 14. an alarm device; 15. a required power detection device; 16. a charging variation curve database; 17. a range extender.
Detailed Description
The invention is described in further detail below with reference to figures 1-4.
As shown in fig. 1, a charging system for a charging device based on range extender development comprises a charging pile 1, the charging pile 1 has a function similar to that of a fuel dispenser in a gas station and can charge various types of electric vehicles according to different voltage levels, a communication device 2 for receiving data detected by a battery parameter detection module 3 is arranged in the charging pile 1, the communication device 2 is preferably a communication board, the charging system for a charging device based on range extender development is further provided with a range extender 17 which is in communication with the communication device 2, the range extender 17 comprises an engine 4, a motor 5, a control terminal 6, an engine control device 7 controlled by the control terminal 6 and used for individually controlling the engine 4, and a motor control device 8 controlled by the control terminal 6 and used for individually controlling the motor 5, wherein the control terminal 6, the engine control device 7 and the motor control device 8 are preferably ECUs, i.e. to represent i.e. a car-specific microcontroller.
Further, in order to ensure that the output power of the charging pile 1 can follow the change condition of the output power of the range extender 17, the charging system for the charging device developed based on the range extender further comprises a rotating speed and torque distribution module 9 arranged in the control terminal 6, and a rotating speed and torque database 10 which is arranged in the control terminal 6 and stores a rotating speed value of the engine 4 and a torque value of the motor 5 matched with the actual output power of the range extender 17, wherein the rotating speed value n of the engine 4, the torque value T of the motor 5 and the actual power P of the range extender 17 meet the following formula of T = P/n.
Further, to confirm the required output power in the initial state of the range extender 17, the control terminal 6 interactively communicates with the communication device 2 to acquire the required power of the charged vehicle detected by the required power detection device 15, and takes the required power of the charged vehicle at the moment as the maximum limit power at the first time of acquiring the required power of the charged vehicle; if the maximum power limit exceeds the maximum output power that can be provided by the range extender 17.
The control terminal 6 uses the maximum output power provided by the range extender 17 as the initial output power of the range extender 17 to inquire a torque value of the motor 5 and a rotating speed value of the engine 4 which are matched with the actual output power of the range extender 17 in the rotating speed and torque database 10, the rotating speed and torque distribution module 9 enables the rotating speed value of the engine 4 to reach the rotating speed value of the engine 4 matched with the initial output power of the range extender 17 through the engine control device 7, and simultaneously enables the torque value of the motor 5 to reach the torque value of the motor 5 matched with the initial output power of the range extender 17 through the motor control device 8; on the contrary, when the maximum limit power is smaller than the maximum output power which can be provided by the range extender 17, the control terminal 6 uses the maximum limit power as the initial output power of the range extender 17 to inquire out the torque value of the motor 5 and the rotating speed value of the engine 4 which are matched with the initial output power of the range extender 17 in the rotating speed and torque database 10, the rotating speed and torque distribution module 9 enables the rotating speed value of the engine 4 to reach the rotating speed of the engine 4 which is matched with the initial output power of the range extender 17 through the engine control device 7, and simultaneously enables the torque value of the motor 5 to reach the torque value of the motor 5 which is matched with the initial output power of the range extender 17 through the motor control device 8.
The output power of the range extender 17 is slowly and linearly adjusted upwards from zero power, the output power of the range extender 17 is kept continuously output after the output power of the range extender 17 reaches the initial output power, the subsequent output power is linearly adjusted downwards when the residual electric quantity of the charged vehicle detected by the battery parameter detection module 3 reaches a first preset value of the control terminal 6, and the power output is stopped when the residual electric quantity of the charged vehicle reaches a second preset value of the control terminal 6.
In order to avoid the phenomenon that the output power of the charging pile 1 is inconsistent with the output power of the range extender 17, the charging system for the charging device developed based on the range extender further comprises a first power detection device 12 arranged in the charging pile 1 and used for detecting the real-time output power in the charging pile 1, a second power detection device 13 arranged in the motor control device 8 and used for detecting the real-time output power of the range extender 17, and an alarm device 14, wherein the real-time output power of the charging pile 1 detected by the first power detection device 12 is defined as first power data, and the real-time output power of the range extender 17 detected by the second power detection device 13 is defined as second power data; and when the difference value of the first power data and the second power data exceeds the preset range of the control terminal 6, starting the alarm device 14 to give an alarm, controlling the control terminal 6 to stop the power output of the range extender 17, sending a zero power request instruction to the charging pile, and setting the output power requirement of the charging pile to be 0.
Further, in order to ensure that the required power of the charged vehicle received by the control terminal 6 can be the real-time required power, the charging system for the charging device developed based on the range extender further comprises a charging variation curve database 16 which stores the variation condition of the required power of the charged vehicle along with time and the initial output power of the range extender 17 matched with the required power of the charged vehicle; the control terminal 6 takes the communication time between the communication device 2 and the range extender 17 as a time difference, acquires the required power of the charged vehicle and the initial output power of the range extender 17 after time migration from the charging change curve database 16 according to the corresponding time difference of the current time migration, and the rotating speed and torque distribution module 9 enables the rotating speed value of the engine 4 to reach the rotating speed of the engine 4 matched with the initial output power of the range extender 17 through the engine control device 7 in advance, and enables the torque value of the motor 5 to reach the torque value of the motor 5 matched with the initial output power of the range extender 17 through the motor control device 8 in advance.
As shown in fig. 2 to 4, the charging system for a charging device developed by the range extender is described above, and the charging method for a charging device developed by the range extender 17 is described in detail below.
A charging method for a charging device developed based on a range extender 17 comprises the following steps: s1, establishing communication between a charging pile 1 and a range extender 17, and determining the initial output power of the range extender 17; and S2, the range extender 17 sends the initial output power of the range extender to the charging pile 1 as a power request instruction of the charging pile 1, and the output power of the charging pile 1 is ensured to be consistent with the output power of the range extender 17.
Wherein, S1 includes the following steps: s1.1: before the range extender 17 charges the charged vehicle, acquiring the required power of the charged vehicle in advance through the communication device 2, taking the required power as the maximum limiting power, and sending the maximum limiting power to the range extender 17 through the communication device 2 in time; s1.2: determining the initial output power of the range extender 17 based on the comparison result of the maximum power which can be provided by the range extender 17 and the maximum limit power, wherein if the maximum power which can be provided by the range extender 17 exceeds the maximum limit power, the maximum limit power is used as the initial output power of the range extender 17; on the contrary, if the maximum power that the range extender 17 can provide is smaller than the maximum limit power, the maximum power that the range extender 17 can provide is used as the initial output power of the range extender 17.
Wherein, S2 includes the following steps: s2.1: the charging pile 1 acquires the initial output power of the range extender 17 through communication with the communication device 2, gradually adjusts the output power of the range extender 17 from zero to the initial output power and keeps the continuous output of the initial output power; s2.2: when the residual electric quantity of the charged vehicle reaches a first preset value preset by the control terminal 6, the output power of the range extender 17 is slowly and linearly reduced, and meanwhile, the actual output power request of the charging pile 1 is actively and synchronously adjusted by being limited by the change of the output power of the range extender 17. S2.3: when the residual electric quantity of the charged vehicle is a second preset value preset by the control terminal 6, the output power of the range extender 17 is adjusted to the preset output requirement, and the power output of the range extender 17 is stopped.
The specific embodiments are only for explaining the present invention, and the present invention is not limited thereto, and those skilled in the art can make modifications without inventive contribution to the present embodiments as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (6)
1. The utility model provides a charging system for charging device based on increase journey ware development, is including filling electric pile (1), characterized by: the charging system for the charging device based on range extender development comprises a communication device (2) arranged in a charging pile (1) and used for receiving data detected by a battery parameter detection module (3), a range extender (17) communicated with the communication device (2), a required power detection device (15) arranged in the charging pile (1) and used for detecting required power of a charged vehicle in real time, wherein the range extender (17) is defined to comprise an engine (4), a motor (5), a control terminal (6), an engine control device (7) controlled by the control terminal (6) and used for independently controlling the engine (4), and a motor control device (8) controlled by the control terminal (6) and used for independently controlling the motor (5);
the charging system for the charging device developed based on the range extender further comprises a rotating speed and torque distribution module (9) arranged in the control terminal (6) and a rotating speed and torque database (10) which is arranged in the control terminal (6) and stores an engine (4) rotating speed value and a motor (5) torque value which are matched with the actual output power of the range extender (17), wherein the rotating speed value n of the engine (4), the motor (5) torque value T and the actual power P of the range extender (17) meet the following formula T = 9550P/n;
the control terminal (6) interactively communicates with the communication device (2) to acquire the required power of the charged vehicle detected by the required power detection device (15), and the required power of the charged vehicle is taken as the maximum limit power at the moment in the first time of acquiring the required power of the charged vehicle;
if the maximum limiting power exceeds the maximum output power which can be provided by the range extender (17), the control terminal (6) takes the maximum output power which can be provided by the range extender (17) as the initial output power of the range extender (17) to inquire out a torque value of the motor (5) and a rotating speed value of the engine (4) which are matched with the actual output power of the range extender (17) in a rotating speed and torque database (10), the rotating speed and torque distribution module (9) enables the rotating speed value of the engine (4) to reach the rotating speed value of the engine (4) which is matched with the initial output power of the range extender (17) through an engine control device (7), and simultaneously enables the torque value of the motor (5) to reach the torque value of the motor (5) which is matched with the initial output power of the range extender (17) through the motor control device (8);
on the contrary, when the maximum limit power is smaller than the maximum output power which can be provided by the range extender (17), the control terminal (6) takes the maximum limit power as the initial output power of the range extender (17) to inquire out the torque value of the motor (5) and the rotating speed value of the engine (4) which are matched with the initial output power of the range extender (17) in the rotating speed and torque database (10), the rotating speed and torque distribution module (9) enables the rotating speed value of the engine (4) to reach the rotating speed of the engine (4) which is matched with the initial output power of the range extender (17) through the engine control device (7), and simultaneously enables the torque value of the motor (5) to reach the torque value of the motor (5) which is matched with the initial output power of the range extender (17) through the motor control device (8);
the output power of the range extender (17) is slowly and linearly adjusted upwards from zero power, the output power of the range extender (17) is kept continuously output after the output power of the range extender (17) reaches the initial output power, the subsequent output power is linearly adjusted downwards when the residual electric quantity of the charged vehicle detected by the battery parameter detection module (3) reaches a first preset value of the control terminal (6), and the power output is stopped when the residual electric quantity of the charged vehicle reaches a second preset value of the control terminal (6).
2. The charging system for a charging device developed based on a range extender of claim 1, wherein: the charging system for the charging device based on range extender development further comprises a first power detection device (12) arranged in the charging pile (1) and used for detecting real-time output power in the charging pile (1), a second power detection device (13) arranged in the motor control device (8) and used for detecting real-time output power of the range extender (17), and an alarm device (14), wherein the real-time output power of the charging pile (1) detected by the first power detection device (12) is defined as first power data, and the real-time output power of the range extender (17) detected by the second power detection device (13) is defined as second power data;
when the difference value of the first power data and the second power data exceeds the preset range of the control terminal (6), the alarm device (14) is started to give an alarm, the control terminal (6) stops the power output of the range extender (17), a zero power request instruction is sent to the charging pile (1), and the output power requirement of the charging pile (1) is set to be 0.
3. The charging system for a charging device developed based on a range extender of claim 2, wherein: the charging system for the charging device based on range extender development also comprises a charging change curve database (16) for storing the change situation of the power required by the charged vehicle along with time and the initial output power of the range extender (17) matched with the power required by the charged vehicle;
the control terminal (6) takes the communication time between the communication device (2) and the range extender (17) as a time difference, acquires the required power of the charged vehicle and the initial output power of the range extender (17) after time migration from the charging change curve database (16) according to the corresponding time difference of the current time migration, and the rotating speed and torque distribution module (9) enables the rotating speed value of the engine (4) to reach the rotating speed of the engine (4) matched with the initial output power of the range extender (17) in advance through the engine control device (7), and enables the torque value of the motor (5) to reach the torque value of the motor (5) matched with the initial output power of the range extender (17) in advance through the motor control device (8).
4. A charging method for a charging device developed based on a range extender, using the charging system for a charging device developed based on a range extender according to claim 3, comprising the steps of:
s1, establishing communication between a charging pile (1) and a range extender (17), and determining the initial output power of the range extender (17);
s2, the range extender (17) sends the initial output power of the range extender to the charging pile (1) as a power request instruction of the charging pile (1), and the output power of the charging pile (1) is ensured to be consistent with the output power of the range extender (17).
5. The charging method for the charging device developed based on the range extender of claim 4, wherein the step S1 includes the steps of:
s1.1: before the range extender (17) charges the charged vehicle, acquiring the required power of the charged vehicle in advance through the communication device (2), taking the required power as the maximum limiting power, and sending the maximum limiting power to the range extender (17) through the communication device (2) in time;
s1.2: determining the initial output power of the range extender (17) based on the comparison result of the maximum power which can be provided by the range extender and the maximum limit power, wherein if the maximum power which can be provided by the range extender (17) exceeds the maximum limit power, the maximum limit power is used as the initial output power of the range extender (17); on the contrary, if the maximum power which can be provided by the range extender (17) is smaller than the maximum limit power, the maximum power which can be provided by the range extender (17) is used as the initial output power of the range extender (17).
6. The charging method for the charging device developed based on the range extender of claim 5, wherein the step S2 includes the steps of:
s2.1: the charging pile (1) obtains the initial output power of the range extender (17) through communication with the communication device, gradually adjusts the output power of the range extender (17) from zero to the initial output power and keeps the continuous output of the initial output power;
s2.2: when the residual electric quantity of the charged vehicle reaches a first preset value preset by the control terminal (6), the output power of the range extender (17) is slowly and linearly reduced, and meanwhile, the actual output power request of the charging pile (1) is actively and synchronously adjusted by being limited by the change of the output power of the range extender (17);
s2.3: when the residual electric quantity of the charged vehicle is a second preset value preset by the control terminal, the output power of the range extender (17) is adjusted to be 0, and the power output of the range extender (17) is stopped.
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Effective date of registration: 20230927 Address after: 315100 East 1st Road, Science Park, Jiangshan Town, Yinzhou District, Ningbo City, Zhejiang Province Patentee after: Ningbo Shenglong New Energy Vehicle Power Co.,Ltd. Address before: 315000 zone 4, 1st floor, building 2, building 005, 1177 Lingyun Road, high tech Zone, Ningbo City, Zhejiang Province Patentee before: NINGBO JIECHENG AUTOMOTIVE TECHNOLOGY CO.,LTD. |