CN112590568A - Range extender control method and system - Google Patents
Range extender control method and system Download PDFInfo
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- CN112590568A CN112590568A CN202110004225.4A CN202110004225A CN112590568A CN 112590568 A CN112590568 A CN 112590568A CN 202110004225 A CN202110004225 A CN 202110004225A CN 112590568 A CN112590568 A CN 112590568A
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The embodiment of the invention provides a range extender control method and system. Judging whether a first condition and a second condition are met or not by the first controller if the first controller receives a mileage timing frame signal sent by the second controller and receives a time timing frame signal sent by the third controller; if the first controller judges that any one of the first condition and the second condition is met, a safe starting request is sent to the whole vehicle controller; the vehicle control unit responds to the safe starting request and sends a safe starting instruction to the first controller; the first controller responds to the safe starting instruction and safely starts the range extender, so that the range extender can be self-lubricated under low load, and the durability of the range extender is improved.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of vehicles, in particular to a range extender control method and system.
[ background of the invention ]
The extended range electric automobile has pure electric driving capability at a certain distance and can meet the commuting requirement of a general user on and off duty. Under the condition that pure electricity can satisfy the commuting demand, the range extender assembly can be in a non-running state for a long time. At this time, the oil inside the range extender is influenced by gravity, and the oil adhesion on the surface of each machine part is reduced.
However, when the adhesion of Engine oil is reduced, an Engine Management System (EMS) and a range extender controller (GCU) respond to a start request of a Vehicle Controller Unit (VCU) to quickly start the range extender, so that the rotating speed of the range extender is increased to above 1000rpm, which may aggravate mechanical wear inside the range extender and reduce the durability of the range extender.
[ summary of the invention ]
In view of this, embodiments of the present invention provide a method and a system for controlling a range extender, so as to improve the durability of the range extender.
In one aspect, an embodiment of the present invention provides a range extender control method, including:
if the first controller receives the mileage timing frame signal sent by the second controller and receives the time timing frame signal sent by the third controller, whether a first condition and a second condition are met is judged;
if the first controller judges that any one of the first condition and the second condition is met, a safe starting request is sent to the whole vehicle controller;
the vehicle control unit responds to the safe starting request and sends a safe starting instruction to a first controller;
the first controller responds to the safe starting instruction and safely starts the range extender.
Optionally, the first condition comprises: whether the acquired duration of the shutdown is greater than or equal to the set time threshold.
Optionally, the second condition comprises: whether the obtained shutdown driving mileage is larger than or equal to the set mileage threshold value or not.
Optionally, the first controller, in response to the safe start instruction, after starting the range extender safely, includes:
the first controller judges whether the acquired running time of the range extender meets the set running condition requirement of the range extender or not;
if the first controller judges that the acquired range extender running time meets the set range extender running condition requirement, a stop instruction is sent to the range extender;
the range extender shuts down in response to the shutdown command.
Optionally, the first controller comprises an engine management system or range extender controller.
Optionally, if the first controller receives the mileage timing frame signal sent by the second controller and receives the time timing frame signal sent by the third controller, the determining whether the first condition or the second condition is met includes:
and the vehicle control unit sends a range extender starting request to the first controller. 7. The method of claim 6, further comprising:
and if the first controller judges that the first condition is not met and the second condition is not met, the first controller responds to the range extender starting request and starts the range extender.
In another aspect, an embodiment of the present invention provides a range extender control system, including: the system comprises a first controller, a whole vehicle controller and a range extender;
the first controller is used for judging whether a first condition and a second condition are met or not if a mileage timing frame signal sent by the second controller and a time timing frame signal sent by the third controller are received; if any one of the first condition and the second condition is judged to be met, sending a safe starting request to the whole vehicle controller;
the vehicle control unit is used for responding to the safe starting request and sending a safe starting instruction to the first controller;
the first controller is further used for responding to the safe starting instruction and safely starting the range extender.
In the technical scheme of the range extender control method provided by the embodiment of the invention, whether a first condition and a second condition are met is judged by a first controller if a mileage timing frame signal sent by a second controller and a time timing frame signal sent by a third controller are received; if the first controller judges that any one of the first condition and the second condition is met, a safe starting request is sent to the whole vehicle controller; the vehicle control unit responds to the safe starting request and sends a safe starting instruction to the first controller; the first controller responds to the safe starting instruction and safely starts the range extender, so that the range extender can be self-lubricated under low load, and the durability of the range extender is improved.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a range extender control system according to an embodiment of the present invention;
fig. 2 is a flowchart of a control method of a range extender according to an embodiment of the present invention;
fig. 3 is a flowchart of another method for controlling a range extender according to an embodiment of the present invention.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of associative relationship that describes an associated object, meaning that three types of relationships may exist, e.g., A and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
An embodiment of the present invention provides a range extender control system, and fig. 1 is a schematic structural diagram of the range extender control system provided in the embodiment of the present invention, as shown in fig. 1, the system includes: the system comprises a first controller 1, a vehicle control unit 2, a range extender 3, a second controller 4 and a third controller 5, wherein the first controller 1 is connected with the vehicle control unit 2, the first controller 1 is connected with the range extender 3, the first controller 1 is connected with the second controller 4, and the first controller 1 is connected with the third controller 5.
The first controller 1 is configured to determine whether a first condition and a second condition are satisfied if a mileage timing frame signal sent by the second controller 4 is received and a time timing frame signal sent by the third controller 5 is received; and if the condition is judged to meet any one of the first condition and the second condition, sending a safe starting request to the vehicle control unit 2.
The vehicle control unit 2 is configured to send a safe starting instruction to the first controller 1 in response to the safe starting request.
The first controller 1 safely starts the range extender 3 in response to the safe start instruction.
In the embodiment of the invention, the second controller comprises an instrument, and the third controller comprises a vehicle control unit.
In an embodiment of the present invention, the first condition includes: whether the acquired duration of the shutdown is greater than or equal to the set time threshold.
In an embodiment of the present invention, the second condition includes: whether the obtained shutdown driving mileage is larger than or equal to the set mileage threshold value or not.
In the embodiment of the invention, the first controller 1 is further configured to determine whether the acquired operating time of the range extender meets the set operating condition requirement of the range extender; and if the acquired range extender running time meets the set range extender running condition requirement, sending a stop instruction to the range extender 3.
The range extender 3 is used for responding to a stop command and stopping.
In an embodiment of the invention, the first controller 1 comprises an engine management system or range extender controller.
In the embodiment of the present invention, the vehicle control unit 2 is further configured to send a range extender starting request to the first controller 1.
In the embodiment of the present invention, if the first controller 1 determines that the first condition is not satisfied and the second condition is not satisfied, the first controller 1 starts the range extender 3 in response to the range extender start request.
In the technical scheme provided by the embodiment of the invention, whether a first condition and a second condition are met is judged by a first controller if a mileage timing frame signal sent by a second controller and a time timing frame signal sent by a third controller are received; if the first controller judges that any one of the first condition and the second condition is met, a safe starting request is sent to the whole vehicle controller; the vehicle control unit responds to the safe starting request and sends a safe starting instruction to the first controller; the first controller responds to the safe starting instruction and safely starts the range extender, so that the range extender can be self-lubricated under low load, and the durability of the range extender is improved.
Based on the range extender control system shown in fig. 1, an embodiment of the present invention provides a method for controlling a range extender, and fig. 2 is a flowchart of the method for controlling the range extender provided in the embodiment of the present invention, and as shown in fig. 2, the method includes:
In the embodiment of the invention, if the second controller monitors that the vehicle runs for the set mileage, the second controller sends the mileage timing frame signal to the first controller. The set mileage can be set according to actual conditions. For example, if the second controller detects that the vehicle has traveled 100 kilometers, the second controller sends a odometer time frame signal to the first controller.
In the embodiment of the invention, if the third controller monitors that the vehicle runs for the set time, the third controller sends a time timing frame signal to the first controller. The setting time can be set according to actual conditions. For example, if the second controller detects that the vehicle has been running for 2 years, the third controller sends a time frame signal to the first controller. At this time, it is shown that the vehicle travels 100 km in 2 years.
In an embodiment of the present invention, the first condition includes: whether the acquired duration of the shutdown is greater than or equal to the set time threshold. The second condition includes: whether the obtained shutdown driving mileage is larger than or equal to the set mileage threshold value or not.
In the embodiment of the invention, the first controller can acquire the stop driving mileage from the second controller and acquire the stop duration from the third controller.
In the embodiment of the invention, the time threshold and the mileage threshold can be set according to actual conditions. For example, the setting can be made based on endurance data of the range extender assembly stand.
In the embodiment of the invention, if the first controller judges that any one of the first condition and the second condition is met, the first controller indicates that the shutdown driving mileage of the vehicle is larger or the shutdown duration of the vehicle is longer, and the range extender does not operate for a long time; if the first condition is not met and the second condition is not met, the fact that the stop driving distance of the vehicle is small or the stop duration of the vehicle is short is indicated, and the range extender is operated recently.
And 104, the first controller sends a safe starting request to the whole vehicle controller.
And 106, the vehicle control unit responds to the safe starting request and sends a safe starting instruction to the first controller.
And step 108, the first controller responds to the safe starting instruction to safely start the range extender.
In this step, the range extender is started safely and self-lubricated under low load. As an alternative, the self-lubricating starting time under low load is longer than the set safety time, the starting speed in the time is not higher than 300rpm, but the starting success time of the range extender is not higher than 4.5s at most.
In the embodiment of the invention, the operating condition of the range extender comprises set operating time, and the set operating time is set according to the actual operating condition, for example, the time required for meeting the lowest emission cycle condition after the range extender is started.
In the embodiment of the invention, if the first controller judges that the running time of the range extender is greater than or equal to the time required by the set lowest discharge cycle working condition, the range extender is indicated to have the shutdown requirement; if the range extender judges that the starting time is less than the set starting time, the self-lubrication of the range extender is not completed, and the range extender does not have the shutdown requirement.
And step 112, the first controller sends a stop command to the range extender.
And step 114, the range extender responds to the stop command and stops.
In an embodiment of the present invention, the range extender shutdown will reduce carbon emissions from the vehicle.
In the embodiment of the present invention, after step 114, the method further includes: and entering the next range extender to start the protection cycle control.
In the technical scheme provided by the embodiment of the invention, whether a first condition and a second condition are met is judged by a first controller if a mileage timing frame signal sent by a second controller and a time timing frame signal sent by a third controller are received; if the first controller judges that any one of the first condition and the second condition is met, a safe starting request is sent to the whole vehicle controller; the vehicle control unit responds to the safe starting request and sends a safe starting instruction to the first controller; the first controller responds to the safe starting instruction and safely starts the range extender, so that the range extender can be self-lubricated under low load, and the durability of the range extender is improved.
According to the technical scheme provided by the embodiment of the invention, time timing and mileage record are added in the starting control of the range extender, EMS or GCU can be used for realizing the safe starting of the passive control range extender, the lubrication work of internal parts of the range extender can be completed under low load, the abrasion of the internal parts of the range extender is reduced, and the durability of the range extender assembly is improved.
Based on the range extender control system shown in fig. 1, another range extender control method is provided in the embodiment of the present invention, and fig. 3 is a flowchart of another range extender control method provided in the embodiment of the present invention, as shown in fig. 3, the method includes:
In the embodiment of the invention, if the second controller monitors that the vehicle runs for the set mileage, the second controller sends the mileage timing frame signal to the first controller. The set mileage can be set according to actual conditions. For example, if the second controller detects that the vehicle has traveled 100 kilometers, the second controller sends a odometer time frame signal to the first controller.
In the embodiment of the invention, if the third controller monitors that the vehicle runs for the set time, the third controller sends a time timing frame signal to the first controller. The setting time can be set according to actual conditions. For example, if the second controller detects that the vehicle has been running for 2 years, the third controller sends a time frame signal to the first controller. At this time, it is shown that the vehicle travels 100 km in 2 years.
In an embodiment of the present invention, the first condition includes: whether the acquired duration of the shutdown is greater than or equal to the set time threshold. The second condition includes: whether the obtained shutdown driving mileage is larger than or equal to the set mileage threshold value or not.
In the embodiment of the invention, the first controller can acquire the stop driving mileage from the second controller and acquire the stop duration from the third controller.
In the embodiment of the invention, the time threshold and the mileage threshold can be set according to actual conditions. For example, the setting can be made based on endurance data of the range extender assembly stand.
In the embodiment of the invention, if the first controller judges that any one of the first condition and the second condition is met, the first controller indicates that the shutdown driving mileage of the vehicle is larger or the shutdown duration of the vehicle is longer, and the range extender does not operate for a long time; if the first condition is not met and the second condition is not met, the fact that the stop driving distance of the vehicle is small or the stop duration of the vehicle is short is indicated, and the range extender is operated recently.
In this step, the first controller actively controls the range extender in a safe manner.
And step 206, the first controller sends a safe starting request to the whole vehicle controller.
And step 208, the vehicle control unit responds to the safe starting request and sends a safe starting instruction to the first controller.
And step 210, the first controller responds to the safe starting instruction to safely start the range extender.
In this step, the range extender is started safely and self-lubricated under low load. As an alternative, the self-lubricating starting time under low load is longer than the set safety time, the starting speed in the time is not higher than 300rpm, but the starting success time of the range extender is not higher than 4.5s at most.
In the embodiment of the invention, the operation condition of the range extender comprises set operation time which can be set according to actual conditions, for example, the time required by meeting a lowest discharge cycle condition after the range extender is started.
In the embodiment of the invention, if the range extender judges that the starting time is more than or equal to the set starting time, the range extender is indicated to have the shutdown requirement; if the range extender judges that the starting time is less than the set starting time, the self-lubrication of the range extender is not completed, and the range extender does not have the shutdown requirement.
In step 214, the first controller sends a shutdown command to the range extender.
And step 216, the range extender responds to the stop command, stops the operation and ends the process.
For example, after the range extender is started, the charging working condition requirement of the whole vehicle and the time required by the lowest emission cycle working condition need to be met, and after the range extender is stopped, the next starting request control is carried out to carry out the safe starting control cycle.
In step 218, the first controller initiates the range extender in response to the range extender initiation request.
In this step, the first controller normally starts the range extender.
In the technical scheme provided by the embodiment of the invention, whether a first condition and a second condition are met is judged by a first controller if a mileage timing frame signal sent by a second controller and a time timing frame signal sent by a third controller are received; if the first controller judges that any one of the first condition and the second condition is met, a safe starting request is sent to the whole vehicle controller; the vehicle control unit responds to the safe starting request and sends a safe starting instruction to the first controller; the first controller responds to the safe starting instruction and safely starts the range extender, so that the range extender can be self-lubricated under low load, and the durability of the range extender is improved.
According to the technical scheme provided by the embodiment of the invention, time timing and mileage record are added in the starting control of the range extender, EMS or GCU can be used for realizing the safe starting of the range extender, the lubrication work of internal parts of the range extender can be completed under low load, the abrasion of the internal parts of the range extender is reduced, and the durability of the range extender assembly is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. A range extender control method, comprising:
if the first controller receives the mileage timing frame signal sent by the second controller and receives the time timing frame signal sent by the third controller, whether a first condition and a second condition are met is judged;
if the first controller judges that any one of the first condition and the second condition is met, a safe starting request is sent to the whole vehicle controller;
the vehicle control unit responds to the safe starting request and sends a safe starting instruction to a first controller;
the first controller responds to the safe starting instruction and safely starts the range extender.
2. The method of claim 1, wherein the first condition comprises: whether the acquired duration of the shutdown is greater than or equal to the set time threshold.
3. The method of claim 1, wherein the second condition comprises: whether the obtained shutdown driving mileage is larger than or equal to the set mileage threshold value or not.
4. The method of claim 1, wherein the first controller, in response to the safe start command, after safely starting the range extender comprises:
the first controller judges whether the acquired running time of the range extender meets the set running condition requirement of the range extender or not;
if the first controller judges that the acquired range extender running time meets the set range extender running condition requirement, a stop instruction is sent to the range extender;
the range extender shuts down in response to the shutdown command.
5. The method of claim 1, wherein the first controller comprises an engine management system or range extender controller.
6. The method of claim 1, wherein the determining whether the first condition or the second condition is satisfied before the first controller receives the odometry timing frame signal sent by the second controller and receives the time timing frame signal sent by the third controller comprises:
and the vehicle control unit sends a range extender starting request to the first controller.
7. The method of claim 6, further comprising:
and if the first controller judges that the first condition is not met and the second condition is not met, the first controller responds to the range extender starting request and starts the range extender.
8. A range extender control system, comprising: the system comprises a first controller, a second controller, a third controller, a vehicle control unit and a range extender;
the first controller is used for judging whether a first condition and a second condition are met or not if a mileage timing frame signal sent by the second controller and a time timing frame signal sent by the third controller are received; if any one of the first condition and the second condition is judged to be met, sending a safe starting request to the whole vehicle controller;
the vehicle control unit is used for responding to the safe starting request and sending a safe starting instruction to the first controller;
the first controller is further used for responding to the safe starting instruction and safely starting the range extender.
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| CN116006339A (en) * | 2023-02-02 | 2023-04-25 | 重庆赛力斯新能源汽车设计院有限公司 | Compression ignition control optimization method, system, equipment and medium for range-extended automobile engine |
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