CN115520037A - Range extender control method, system, equipment and storage medium - Google Patents
Range extender control method, system, equipment and storage medium Download PDFInfo
- Publication number
- CN115520037A CN115520037A CN202211359116.5A CN202211359116A CN115520037A CN 115520037 A CN115520037 A CN 115520037A CN 202211359116 A CN202211359116 A CN 202211359116A CN 115520037 A CN115520037 A CN 115520037A
- Authority
- CN
- China
- Prior art keywords
- range extender
- engine
- controller
- control
- rotating speed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/61—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
- B60L50/62—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles charged by low-power generators primarily intended to support the batteries, e.g. range extenders
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
The invention discloses a range extender control method, a system, equipment and a storage medium, belonging to the technical field of new energy automobiles.
Description
Technical Field
The application relates to the technical field of new energy automobiles, in particular to a range extender control method, system, equipment and storage medium.
Background
A generator and an engine in a range extender of an existing new energy automobile are connected with a motor spline shaft through a dual-mass flywheel, and in the operation process of the range extender, due to the fact that a control method is improper, resonance impact time borne by a transmission shaft system structure is long, and the phase difference between a primary flywheel and a secondary flywheel in the dual-mass flywheel is too large due to impact, and exceeds the working range of the dual-mass flywheel, so that the reliability of the weakest part in the transmission shaft system structure is reduced.
Therefore, the reliability of the transmission shafting structure of the range extender in the prior art is low.
Disclosure of Invention
The application mainly aims to provide a control method, a control system, control equipment and a storage medium of a range extender, and aims to solve the technical problem that the reliability of a transmission shafting structure of the range extender is low.
In order to achieve the above purpose, the present application provides a control method for a range extender, which is applied to a range extender, wherein the range extender includes a generator, an engine, a range extender controller, a generator controller and an engine controller, the range extender controller, the generator controller and the engine controller are in communication connection, the generator and the engine are connected through a transmission shafting structure, and the transmission shafting structure includes a dual-mass flywheel;
the range extender control method comprises the following steps:
step S1: the range extender controller sends corresponding control instructions and preset operation torque corresponding to the control instructions to the generator controller and the engine controller based on the received control demand instructions, wherein the control demand instructions are sent by the whole vehicle controller;
step S2: the generator controller controls the generator to operate according to the preset operation torque based on the control instruction so as to improve the rotating speed acceleration of the engine, and the range extender controller controls the range extender based on the rotating speed change of the engine, wherein the rotating speed acceleration and the resonance interval of the dual-mass flywheel have an incidence relation.
The step S1 includes:
the generator controller controls the generator to drag the engine to start rotating according to the preset starting torque based on the starting instruction;
when the engine controller monitors that the rotating speed of the engine is higher than a preset oil injection rotating speed, the engine controller controls the engine to start oil injection, and when the rotating speed reaches a preset unloading rotating speed, the range extender controller sends an unloading instruction to the generator controller so that the generator controller can control the generator to unload the current torque to zero, and the starting of the range extender is completed.
In a possible embodiment of the present application, the step S2 includes:
the generator controller controls the generator to load according to the preset brake torque based on the stop instruction, and the engine controller controls the engine to stop oil injection based on the stop instruction, so that the rotating speed of the engine is reduced to zero, and the stop of the range extender is completed.
In a possible embodiment of the present application, after the step S2, the method further includes:
the range extender controller monitors the rotational speed of the engine;
if the rotating speed is higher than the preset oil injection rotating speed, allowing the engine controller to control the engine to start oil injection;
and if the rotating speed is not higher than the preset oil injection rotating speed, sending an oil injection forbidding instruction to the engine controller.
In a possible embodiment of the present application, after the step S2, the method further includes:
the range extender controller monitors whether the range extender has a shutdown requirement;
and if the stopping requirement exists, stopping the starting of the range extender.
In a possible embodiment of the present application, after step S2, the method further includes:
the range extender controller records the time for the rotating speed to reach the preset unloading rotating speed;
and if the time for the rotating speed to reach the preset unloading rotating speed is greater than the preset starting time threshold value, stopping the starting of the range extender so as to allow an operator to check the fault of the engine.
In a possible embodiment of the present application, the range extender control system further includes a vehicle control unit, and before the step S2, the method further includes:
when the range extender controller receives the control demand instruction, monitoring whether the states of the parts of the range extender are abnormal or not;
and if no abnormity exists, sending a control command to the generator controller and the engine controller.
The present application further provides a range extender control device, the device comprising: a memory, a processor, and a range extender control program stored on the memory and executable on the processor, the range extender control program configured to implement the steps of the range extender control method as set forth in any one of the above.
The present application further provides a storage medium having a range extender control program stored thereon, which when executed by a processor, implements the steps of the range extender control method as set forth in any one of the above.
The application provides a range extender control method, because control method is improper among the prior art, the resonance impact time that transmission shafting structure bore is longer, and the impact makes the primary in the dual mass flywheel, secondary flywheel phase difference too big, leads to the weakest position reliability decline in the transmission shafting structure, compares with it, this application is applied to the range extender, the range extender includes generator, engine, range extender controller, generator controller and engine controller, communication connection between range extender controller, generator controller and the engine controller, generator and engine pass through transmission shafting structural connection, the transmission shafting structure includes dual mass flywheel, and the range extender controller sends corresponding control command based on the control demand instruction that received vehicle control unit sent to generator controller and engine controller, and with the predetermined running torque that control command corresponds, generator controller is based on control command, control the generator is according to the predetermined running torque operates, with the acceleration of engine is improved, the range extender controller is based on the rotational speed change of flywheel, to the control of the range extender, wherein the resonance relation is controlled to the acceleration that the dual mass extender and the transmission shafting structure of the acceleration that has the resonance impact between the interval that the dual mass structure can be crossed, thereby the fast application of the process between the dual mass impact time interval that the transmission between can be born.
Drawings
Fig. 1 is a schematic flowchart of a first embodiment of a control method of a range extender according to the present application;
fig. 2 is a schematic view of a control method of a range extender according to a first embodiment of the present application;
FIG. 3 is a first logic architecture diagram of the range extender control method of the present application;
FIG. 4 is a second logic architecture diagram of the range extender control method of the present application;
fig. 5 is a schematic structural diagram of a range extender control device in a hardware operating environment according to an embodiment of the present application.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention. Although the individual steps in the flowcharts in the embodiments of the present application are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and may be performed in other orders unless otherwise indicated herein. Moreover, at least some of the steps in the figures may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, in different orders, and may be performed alternately or partially with other steps or at least some of the sub-steps or stages of other steps.
The words "if", as used herein, may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.
It should be noted that step numbers such as S10 and S20 are used herein for the purpose of more clearly and briefly describing the corresponding contents, and do not constitute a substantial limitation on the sequence, and those skilled in the art may perform S20 first and then S10 in the specific implementation, but these should be within the protection scope of the present application.
An embodiment of the present invention provides a method for controlling a range extender, and referring to fig. 1, fig. 1 is a schematic flowchart of a first embodiment of a method for controlling a range extender according to the present application.
In this embodiment, the method is applied to a range extender, the range extender includes a generator, an engine, a range extender controller, a generator controller and an engine controller, the range extender controller, the generator controller and the engine controller are connected in a communication manner, the generator and the engine are connected through a transmission shafting structure, the transmission shafting structure includes a dual-mass flywheel, and the range extender control method includes:
step S1: the range extender controller sends corresponding control instructions and preset operation torque corresponding to the control instructions to the generator controller and the engine controller based on the received control demand instructions, wherein the control demand instructions are sent by the whole vehicle controller;
step S2: the generator controller controls the generator to operate according to the preset operation torque based on the control instruction so as to improve the rotating speed acceleration of the engine and improve the rotating speed change rate of the engine, and the range extender controller controls the range extender based on the rotating speed change of the engine monitored and fed back by the engine controller, wherein the rotating speed acceleration and the resonance interval of the dual-mass flywheel have an incidence relation.
The present embodiment is intended to: the reliability of the transmission shafting structure in the operation process of the range extender is improved.
Background of the present embodiment: generally, the range extender includes a generator, an engine, a range extender controller, a generator controller, an engine controller, and the like. As shown in fig. 2, the generator and the engine are connected with the motor spline shaft through a dual-mass flywheel, the dual-mass flywheel internally comprises a primary flywheel, an elastic element, a flange plate and a secondary flywheel, and the flange plate comprises a pendulum bob and a roller. The existing range extender control strategy enables the resonance impact time borne by the range extender transmission shafting structure to be longer, and the impact enables the phase difference between the primary flywheel and the secondary flywheel to reach the limit value and exceed the working range of the dual-mass flywheel, thereby causing the reliability of the transmission shafting structure to be reduced.
As an example, the range extender controller is communicated with the generator controller and the engine controller, receives starting, stopping and torque demand instructions of the vehicle control unit, transmits the instructions to the engine controller and the generator controller, and simultaneously receives information fed back by the engine controller and the generator controller, so that the range extender is controlled.
As an example, the range extender control method is applied to a range extender.
The method comprises the following specific steps:
step S1: the range extender controller sends corresponding control instructions and preset operation torque corresponding to the control instructions to the generator controller and the engine controller based on the received control demand instructions, wherein the control demand instructions are sent by the whole vehicle controller;
as an example, the control demand command is a command that requires the range extender controller to control the range extender to respond, wherein the control demand command is sent by the vehicle control unit, and the control demand command may be a starting demand command, a stopping demand command, an accelerating demand command, and the like.
As an example, the control command is a command for controlling the operation of the range extender by the range extender controller, wherein the control command is sent by the range extender controller and is sent to the engine controller and the generator controller, and the control command can be a starting command, a stopping command, an accelerating command and the like.
As an example, a preset operation torque is sent to the generator controller for the range extender controller, so that the generator controller controls the generator to operate according to the preset operation torque, and the preset operation torque may be a preset starting torque, a preset braking torque, a preset accelerating torque, and the like.
As an example, the preset operating torque is calibrated through experiments.
Step S2: the generator controller controls the generator to operate according to the preset operation torque based on the control instruction so as to improve the rotating speed acceleration of the engine, and the range extender controller controls the range extender based on the rotating speed change of the engine, wherein the rotating speed acceleration and the resonance interval of the dual-mass flywheel have an incidence relation.
As an example, the generator controller controls the generator to operate at the preset operation torque based on the control command to increase the rotation speed acceleration of the engine and increase or decrease the rotation speed of the engine, and the range extender controller controls the range extender based on the rotation speed change of the engine.
As an example, the control of the range extender may be a start control of the range extender, a stop control of the range extender, or an acceleration control of the range extender.
At present, when a range extender of a new energy automobile is started, a motor drives an engine to rotate, meanwhile, the engine receives a starting instruction and performs oil injection starting after position management is completed, the operating rotating speed of the engine is overlapped with a shafting dual-mass flywheel resonance interval, and shafting resonance can be caused by an excitation effect generated by combustion work in an engine cylinder. And the time that the shafting is in the resonance rotating speed area is longer in the starting process, thereby causing the reliability reduction of the weakest part in the transmission shafting structure. When the range extender stops, the rotating speed of the engine also passes through a resonance rotating speed interval, so that the structure of a transmission shaft system is resonated.
Specifically, the resonance rotating speed interval is that the engine is in a preset rotating speed interval, and the transmission shafting structure generates resonance, so that the rotating speed acceleration and the resonance interval of the dual-mass flywheel have an incidence relation, and if the rotating speed acceleration is large enough, the double-mass flywheel can rapidly cross the resonance interval of the dual-mass flywheel, namely, the time of the double-mass flywheel in the resonance rotating speed interval is short, so that the transmission shafting structure cannot generate resonance in time; if the rotating speed acceleration is not large enough, the time of the rotating speed interval in resonance is increased, so that the structure of the transmission shafting is easy to generate resonance.
In this embodiment, the step S1 includes:
step A1: the generator controller controls the generator to drag the engine to start rotating according to the preset starting torque based on the starting instruction;
step A2: when the engine controller monitors that the rotating speed of the engine is higher than a preset oil injection rotating speed, the engine controller controls the engine to start oil injection, and when the rotating speed reaches a preset unloading rotating speed, the range extender controller sends an unloading instruction to the generator controller so that the generator controller can control the generator to unload the current torque to zero, and the starting of the range extender is completed.
As an example, as shown in fig. 3, after the vehicle control unit sends a start demand command to the range extender controller, the range extender may send a start command to the generator controller and the engine controller.
In the embodiment, when the generator controller receives a starting instruction, the generator controller controls the generator to drag the engine to rotate according to a preset starting torque, and when the engine controller receives the starting instruction, the range extender controller monitors the rotating speed of the engine.
As an example, the preset starting torque (T1) is the best starting torque obtained according to the test, and the generator loads the preset starting torque and can drag the engine with the rotation speed of 0 to start oil injection until the engine reaches the preset unloading rotation speed. The preset starting torque can enable the generator to drag the engine to rotate, so that the rotating speed of the engine rapidly crosses a resonance rotating speed interval of the shafting, and excitation generated by applying work in the resonance interval of the dual-mass flywheel to the shafting is reduced.
Step S2: when the rotating speed is greater than the preset oil injection rotating speed, the oil injector is controlled to start oil injection to increase the rotating speed to the preset unloading rotating speed so that the range extender can finish starting;
in the embodiment, as shown in fig. 3, when the rotation speed is increased to be greater than a preset injection rotation speed through dragging of the generator, the engine controller controls an injector of the engine to start injection, and when the rotation speed is increased to be a preset unloading rotation speed, the range extender finishes starting.
As an example, an oil injector is an important component for maintaining the operation of an engine, and is composed of an injector body, an oil nozzle, a holder, a spring, and the like; high pressure oil is pumped from an oil supply port of the oil sprayer, high pressure generated in the oil sprayer body acts on the conical surface of the oil nozzle, when the oil pressure exceeds a set value, a valve core of the oil nozzle is opened, the high pressure oil is sprayed out from a small hole of the nozzle and is atomized into a cylinder barrel of the engine to be combusted, and the piston is made to reciprocate so as to improve the rotating speed of the engine.
As an example, the preset injection speed (n 1) is an optimal starting injection speed according to a test, and the preset injection speed is higher than a resonance speed interval of the shafting.
In the embodiment, as shown in fig. 3, after the engine is successfully started, the range extender controller sends an unloading command to the generator controller, and the generator controller controls the generator to unload the torque to 0, so that the range extender can normally operate.
In this embodiment, the step S2 includes:
step B1: the generator controller controls the generator to load according to the preset braking torque based on the stop instruction, and the engine controller controls the engine to stop oil injection based on the stop instruction so that the rotating speed of the engine is reduced to zero to complete the stop of the range extender.
As an example, if the vehicle control unit sends a stop demand command to the range extender controller, the range extender controller will send a stop command to the generator controller and the engine controller.
In this embodiment, when the generator controller receives a stop instruction, the generator controller controls the generator to load a preset braking torque to reduce the rotation speed of the engine to zero, so that the range extender finishes stopping.
As an example, the preset braking torque (T2) is an optimal braking torque obtained according to a test, and the preset braking torque enables the rotational speed of the engine to be rapidly reduced from the current rotational speed to 0 when the range extender is stopped, that is, the range extender is rapidly crossed over the resonance rotational speed interval of the shafting.
As an example, the engine is braked by using the load torque of the generator, so that the rapid stop is realized, the NVH performance of the range extender in the stop process can be improved, and the vibration of a shafting is reduced; the NVH is short for Noise (Noise), vibration (Vibration) and Harshness (Harshness), and is used for evaluating the Vibration Noise states of the inside and the outside of the vehicle during idling and driving of the vehicle.
As an example, as shown in fig. 4, after the engine controller receives the stop command, the engine controller controls the engine to execute the stop command, the engine stops injecting oil to shut down, and the range extender stops.
When a traditional range extender needs to be started, an engine controller receives a range extender starting command sent by a vehicle controller, the state of each component of the range extender is detected firstly, if the range extender has no fault, the range extender is started, the starting command is sent to the engine controller and a generator controller, and meanwhile, a specific torque of a generator is given in a table look-up mode to drag the engine to rotate and start. The engine rotates under the drive of the motor, and when the engine controller detects that the engine position management is established, oil injection and ignition are started. After the engine is ignited successfully and the rotating speed of the engine is increased to a certain value, the engine controller commands the generator controller to control the generator to unload to zero, and the range extender is started up. When the traditional range extender needs to be stopped, after an engine controller receives a range extender stop instruction sent by a vehicle control unit, the engine controller controls a generator to unload torque through the generator controller, simultaneously controls the engine to return to an idling working condition through the engine controller, and after the engine is idled for a period of time, a throttle valve is closed, oil injection is stopped, ignition is stopped, the engine is shut down, and the range extender is stopped. The traditional control strategy can lead the range extender shaft system to bear longer resonance impact time, thus leading the reliability of the transmission shaft system to be reduced.
Therefore, in the development and matching process of the range extender, the range extender is required to follow the working condition limitation of the flywheel, the range extender rapidly passes through the resonance rotating speed area of the dual-mass flywheel through the optimization of a control strategy, and the engine does not inject oil to start in the resonance area of the dual-mass flywheel and does not provide work to excite the shafting, so that the reliable operation of the range extender is ensured.
In the embodiment, the range extender rapidly crosses the resonance rotating speed interval of the shafting in the starting and stopping processes through the control method, namely, the engine does not perform oil injection starting in the double-mass flywheel resonance interval and does not provide work to excite the shafting, and the reliable operation of the range extender is ensured.
Further, based on the first embodiment in the present application, another embodiment of the present application is provided, in which as shown in fig. 3, a dual control strategy of a range extender controller and an engine controller is further adopted, so that dual protection of a range extender shaft system is realized.
In this embodiment, after the step S2, the method further includes:
step S30: the range extender controller monitors the rotational speed of the engine;
in this embodiment, the engine controller monitors the rotation speed of the engine through the range extender controller, and the range extender controller also monitors the rotation speed of the engine through the range extender controller, so as to realize dual monitoring.
Step S40: if the rotating speed is higher than the preset oil injection rotating speed, allowing the engine controller to control the engine to start oil injection;
in this embodiment, if the rotation speed is higher than the preset injection rotation speed, the injector is controlled to start injection to increase the rotation speed to the preset unloading rotation speed, so that the range extender can complete the starting.
Step S50: and if the rotating speed is not higher than the preset oil injection rotating speed, sending an oil injection prohibition instruction to the engine controller.
In this embodiment, if the rotation speed is not higher than the preset fuel injection rotation speed, an engine fuel non-injection command is sent to an engine controller to stop the starting of the range extender.
In this embodiment, after the step S2, the method further includes:
step S60: the range extender controller monitors whether the range extender has a shutdown requirement;
as an example, during the starting process of the range extender, if the vehicle needs to be stopped due to abnormal states of components or forced stop, the range extender controller is required to dynamically monitor whether the vehicle needs to be stopped.
Step S70: and if the stopping requirement exists, stopping the starting of the range extender.
As an example, the range extender controller suspends the starting of the range extender if there is a need for shutdown.
In this embodiment, before the step S2, the method further includes:
step S80: when the range extender controller receives a starting demand instruction of the vehicle control unit, monitoring whether the states of parts of the range extender are abnormal;
in this embodiment, the range extender controller communicates with the generator controller and the engine controller, and starts to detect whether the states of the components of the range extender are normal or not after the range extender controller receives a starting demand instruction of the vehicle control unit.
Step S90: and if no abnormity exists, sending a starting instruction to the generator controller and the engine controller.
In the embodiment, if the vehicle is abnormal, the abnormal condition is fed back to the vehicle controller, and the vehicle instrument panel reports the starting fault; if no abnormity exists, the range extender controller sends a starting instruction to be transmitted to the engine controller and the generator controller, and simultaneously receives information fed back by the engine controller and the generator controller.
In this embodiment, after the step S2, the method further includes:
step S100: the range extender controller records the time for the rotating speed to reach the preset unloading rotating speed;
in this embodiment, the time taken for the rotational speed to reach the preset unloading rotational speed is recorded by the range extender controller.
The step S110: and if the time for the rotating speed to reach the preset unloading rotating speed is greater than the preset starting time threshold value, stopping the starting of the range extender so as to allow an operator to check the fault of the engine.
As an example, during an engine start, the engine start may be slow due to an engine failure or other component failure of the range extender, and therefore, it may be determined that if the time taken for the speed to reach a preset unloaded speed is greater than a preset start time threshold, the engine start is aborted for an operator to check for the engine failure.
In the embodiment, when the starting of the engine needs to be stopped, the range extender controller sends a starting stopping instruction to the engine controller and the generator controller, the engine stops oil injection, the generator unloads torque to reduce the rotating speed of the engine to 0, the range extender controller sends a restarting instruction to the engine controller and the generator controller, the generator drags the engine to rotate again according to preset restarting torque, the engine controller monitors the rotating speed of the engine through the range extender controller, and when the rotating speed is greater than the preset oil injection rotating speed, the oil injector is controlled to start oil injection to increase the rotating speed to the preset unloading rotating speed so that the range extender can finish starting; and the preset restarting torque is larger than the preset starting torque, and the torque of each next continuous restarting is larger than the torque of the previous restarting.
In the embodiment, the restarting torque is continuously increased to automatically detect whether the engine can be restarted by different starting torques or not so as to avoid that the engine cannot be normally started due to special reasons at that time, but in special situations, time can be saved by automatically restarting, and each restarting of the engine is recorded by the range extender controller and prompted to the driver so that the driver can maintain the engine in an idle state.
In the embodiment, when the range extender controller monitors that the number of times of continuous restarting of the engine is greater than the preset number of times, the engine is prohibited from restarting, and an alarm is given out so that a driver or other operators can troubleshoot the engine.
In the embodiment, the dual protection of the range extender shafting is realized by controlling the oil injection of the engine and adopting an RECU and ECU dual control strategy; the method also monitors the engine before and during the starting process, stops the starting of the range extender in time, protects the range extender, can judge whether the engine has faults or not by recording the time for the rotating speed to reach the preset unloading rotating speed, and can find and eliminate the faults in time.
The present application further provides a range extender control device, the device includes:
the transmission module is used for transmitting corresponding control instructions and preset operation torque corresponding to the control instructions to the generator controller and the engine controller based on the received control demand instructions, wherein the control demand instructions are transmitted by the whole vehicle controller;
the control module is used for controlling the generator to operate according to the preset operation torque based on the control instruction so as to improve the rotating speed acceleration of the engine, and the range extender controller is used for controlling the range extender based on the rotating speed change of the engine, wherein the rotating speed acceleration and the resonance interval of the dual-mass flywheel have an incidence relation.
In one possible implementation manner of the present application, the sending module includes:
the control unit is used for controlling the generator to drag the engine to start rotating according to the preset starting torque based on the starting instruction;
and the starting unit is used for controlling the engine to start oil injection when the rotation speed of the engine is monitored to be higher than a preset oil injection rotation speed, and the range extender controller sends an unloading instruction to the generator controller until the rotation speed reaches a preset unloading rotation speed, so that the generator controller can control the generator to unload the current torque to zero, and the starting of the range extender is completed.
In one possible embodiment of the present application, the control module includes:
and the stop unit is used for controlling the generator to load according to the preset brake torque based on the stop instruction, and the engine controller is used for controlling the engine to stop oil injection based on the stop instruction so as to reduce the rotating speed of the engine to zero and finish the stop of the range extender.
In one possible embodiment of the present application, the apparatus further comprises:
the first monitoring module is used for monitoring the rotating speed of the engine;
the permission module is used for permitting the engine controller to control the engine to start oil injection if the rotating speed is higher than the preset oil injection rotating speed;
and the prohibition module is used for sending an oil injection prohibition instruction to the engine controller if the rotating speed is not higher than the preset oil injection rotating speed.
In one possible embodiment of the present application, the apparatus further comprises:
the second monitoring module is used for monitoring whether the range extender has a shutdown requirement;
the first stopping module is used for stopping the starting of the range extender if a shutdown requirement exists.
In one possible embodiment of the present application, the apparatus further comprises:
the recording module is used for recording the time for the rotating speed to reach the preset unloading rotating speed;
and the second stopping module is used for stopping the starting of the range extender if the time for the rotating speed to reach the preset unloading rotating speed is greater than a preset starting time threshold value so as to allow an operator to check the fault of the engine.
In one possible embodiment of the present application, the apparatus further comprises:
the detection module is used for monitoring whether the states of parts of the range extender are abnormal or not when the range extender controller receives the control demand instruction;
and the sending module is used for sending a control command to the generator controller and the engine controller if no abnormality exists.
The specific implementation of the range extender control device of the present application is substantially the same as the embodiments of the range extender control method described above, and is not described herein again.
The present application further provides a storage medium having a range extender control program stored thereon, which when executed by a processor, implements the steps of the range extender control method as set forth in any one of the above.
The specific implementation of the storage medium of the present application is substantially the same as the above embodiments of the range extender control, and is not described herein again.
Referring to fig. 5, fig. 5 is a schematic device structure diagram of a hardware operating environment according to an embodiment of the present application.
As shown in fig. 5, the range extender control device may include: a processor 1001, a memory 1005, and a communication bus 1002. The communication bus 1002 is used to enable connection communication between the processor 1001 and the memory 1005.
Optionally, the range extender control device may further include a user interface, a network interface, a camera, an RF (Radio Frequency) circuit, a sensor, a WiFi module, and the like. The user interface may comprise a Display screen (Display), an input sub-module such as a Keyboard (Keyboard), and the optional user interface may also comprise a standard wired interface, a wireless interface. The network interface may include a standard wired interface, a wireless interface (e.g., WI-FI interface).
Those skilled in the art will appreciate that the range extender control device configuration shown in fig. 5 does not constitute a limitation of the range extender control device and may include more or fewer components than shown, or some components in combination, or a different arrangement of components.
As shown in fig. 5, the memory 1005, which is a storage medium, may include therein an operating system, a network communication module, and a range extender control program. The operating system is a program that manages and controls the hardware and software resources of the range extender control device, supporting the operation of the range extender control program as well as other software and/or programs. The network communication module is used for communication among the components in the memory 1005 and with other hardware and software in the range extender control system.
In the range extender control device shown in fig. 5, the processor 1001 is configured to execute a range extender control program stored in the memory 1005 to implement the steps of any of the range extender control methods described above.
The specific implementation of the range extender control device of the present application is substantially the same as the embodiments of the range extender control method described above, and is not described herein again.
The present application further provides a storage medium having a range extender control program stored thereon, wherein the range extender control program, when executed by a processor, implements the steps of the range extender control method according to any one of the above-mentioned items.
The specific implementation of the storage medium of the present application is substantially the same as the above embodiments of the range extender control, and is not described herein again.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The range extender control method is characterized by being applied to a range extender, wherein the range extender comprises a generator, an engine, a range extender controller, a generator controller and an engine controller, the range extender controller, the generator controller and the engine controller are in communication connection, the generator is connected with the engine through a transmission shafting structure, and the transmission shafting structure comprises a dual-mass flywheel;
the range extender control method comprises the following steps:
step S1: the range extender controller sends corresponding control instructions and preset operation torque corresponding to the control instructions to the generator controller and the engine controller based on the received control demand instructions, wherein the control demand instructions are sent by the whole vehicle controller;
step S2: the generator controller controls the generator to operate according to the preset operation torque based on the control instruction so as to improve the rotating speed acceleration of the engine, and the range extender controller controls the range extender based on the rotating speed change of the engine, wherein the rotating speed acceleration and the resonance interval of the dual-mass flywheel have an incidence relation.
2. The range extender control method according to claim 1, wherein the step S1 includes:
the generator controller controls the generator to drag the engine to start rotating according to the preset starting torque based on the starting instruction;
when the engine controller monitors that the rotating speed of the engine is higher than a preset oil injection rotating speed, the engine controller controls the engine to start oil injection, and when the rotating speed reaches a preset unloading rotating speed, the range extender controller sends an unloading instruction to the generator controller so that the generator controller can control the generator to unload the current torque to zero, and the range extender is started.
3. The range extender control method of claim 1, wherein the step S2 includes:
the generator controller controls the generator to load according to the preset braking torque based on the stop instruction, and the engine controller controls the engine to stop oil injection based on the stop instruction so that the rotating speed of the engine is reduced to zero to complete the stop of the range extender.
4. The range extender control method of claim 2, wherein after said step S2, said method further comprises:
the range extender controller monitors the rotational speed of the engine;
if the rotating speed is higher than the preset oil injection rotating speed, allowing the engine controller to control the engine to start oil injection;
and if the rotating speed is not higher than the preset oil injection rotating speed, sending an oil injection forbidding instruction to the engine controller.
5. The range extender control method of claim 2, wherein after said step S2, said method further comprises:
the range extender controller monitors whether the range extender has a shutdown requirement;
and if the stopping requirement exists, stopping the starting of the range extender.
6. The range extender control method of claim 2, wherein after said step S2, said method further comprises:
the range extender controller records the time for the rotating speed to reach the preset unloading rotating speed;
and if the time for the rotating speed to reach the preset unloading rotating speed is greater than the preset starting time threshold value, stopping the starting of the range extender so as to allow an operator to check the fault of the engine.
7. The range extender control method of claim 1, wherein the range extender control system further comprises a vehicle control unit, and before the step S2, the method further comprises:
when the range extender controller receives the control demand instruction, monitoring whether the states of parts of the range extender are abnormal or not;
and if no abnormity exists, sending a control command to the generator controller and the engine controller.
8. A range extender control device, the device comprising:
the transmission module is used for transmitting corresponding control instructions and preset operation torque corresponding to the control instructions to the generator controller and the engine controller based on the received control demand instructions, wherein the control demand instructions are transmitted by the whole vehicle controller;
and the control module is used for controlling the generator to operate according to the preset operation torque based on the control instruction so as to improve the rotating speed acceleration of the engine, and the range extender controller is used for controlling the range extender based on the rotating speed change of the engine.
9. A range extender control apparatus, characterized in that the apparatus comprises: a memory, a processor, and a range extender control program stored on the memory and executable on the processor, the range extender control program configured to implement the steps of the range extender control method of any of claims 1 to 7.
10. A storage medium having a range extender control program stored thereon, the range extender control program when executed by a processor implementing the steps of the range extender control method according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211359116.5A CN115520037A (en) | 2022-10-28 | 2022-10-28 | Range extender control method, system, equipment and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211359116.5A CN115520037A (en) | 2022-10-28 | 2022-10-28 | Range extender control method, system, equipment and storage medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115520037A true CN115520037A (en) | 2022-12-27 |
Family
ID=84703262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211359116.5A Pending CN115520037A (en) | 2022-10-28 | 2022-10-28 | Range extender control method, system, equipment and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115520037A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116331183A (en) * | 2023-05-23 | 2023-06-27 | 潍柴动力股份有限公司 | Rotating speed control method and device and electronic control unit |
-
2022
- 2022-10-28 CN CN202211359116.5A patent/CN115520037A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116331183A (en) * | 2023-05-23 | 2023-06-27 | 潍柴动力股份有限公司 | Rotating speed control method and device and electronic control unit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8831815B2 (en) | Method of diagnosing a starter relay failure using synchronized state machine | |
| US9139205B2 (en) | System and method for determining when engine has abnormally stopped in a hybrid electric vehicle | |
| EP1992815A2 (en) | Eco-Run control device and engine restart method | |
| CN115520037A (en) | Range extender control method, system, equipment and storage medium | |
| US7693625B2 (en) | State of health monitoring and reset methods and systems for on-board device driver integrated circuits | |
| CN108501941A (en) | Engine starting method, apparatus and system | |
| US20120259535A1 (en) | Method and device for improving the restart of a vehicle with start-stop system | |
| CN112550265B (en) | Dynamic control method and system for starting and stopping engine of hybrid power vehicle | |
| KR101500406B1 (en) | Injector Correcting Apparatus for Hybrid Electric Vehicle and Method Thereof | |
| CN113202676A (en) | Automobile starting control method, automobile starting control equipment, storage medium and automobile starting control device | |
| US20050131621A1 (en) | Method and arrangement for starting or stopping a motor-driven vehicle | |
| US6671591B2 (en) | System and method for monitoring locomotive operation | |
| CN110985260B (en) | Range extender starting control method and equipment, range extender electric vehicle and storage medium | |
| US8876659B2 (en) | Engine start control device | |
| EP2999878B1 (en) | Method and device for functional control of a high pressure fuel pump | |
| KR20020066345A (en) | Method for engine control | |
| CN104071019A (en) | Fuel vehicle, and automatic charging control method and automatic charging system of battery of fuel vehicle | |
| US8346461B2 (en) | Method for controlling a start-up of an internal combustion engine | |
| US10026238B2 (en) | System and method for converting two diagnostic states of a controller to three diagnostic states | |
| KR20140112419A (en) | Method for controlling a fuel injection system | |
| CN113401111B (en) | Vehicle fault post-processing method, vehicle and computer storage medium | |
| EP2685086B1 (en) | Engine starting strategy to avoid resonant frequency | |
| EP4134287A1 (en) | Method and apparatus for controlling engine to shut down, and electronic device and storage medium | |
| KR100999259B1 (en) | Starting Control Method for Engine with ISG | |
| US8584642B2 (en) | Method for detecting a tow start operation of an internal combustion engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |