CN111976509A - Range extender system control method and device and automobile - Google Patents

Range extender system control method and device and automobile Download PDF

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Publication number
CN111976509A
CN111976509A CN201910439684.8A CN201910439684A CN111976509A CN 111976509 A CN111976509 A CN 111976509A CN 201910439684 A CN201910439684 A CN 201910439684A CN 111976509 A CN111976509 A CN 111976509A
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CN
China
Prior art keywords
power
automobile
storage battery
energy storage
range extender
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Pending
Application number
CN201910439684.8A
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Chinese (zh)
Inventor
马东辉
李义文
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Beijing CHJ Automotive Information Technology Co Ltd
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Beijing CHJ Automotive Information Technology Co Ltd
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Priority to CN201910439684.8A priority Critical patent/CN111976509A/en
Publication of CN111976509A publication Critical patent/CN111976509A/en
Pending legal-status Critical Current

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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
    • 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
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • 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
    • B60L2260/00—Operating Modes
    • B60L2260/20—Drive modes; Transition between modes
    • B60L2260/26—Transition between different drive modes
    • 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
    • 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
    • Y02T10/72—Electric energy management in electromobility

Abstract

The embodiment of the invention provides a range extender system control method, a range extender system control device and an automobile, wherein the automobile comprises an energy storage battery and a range extender, and the method comprises the following steps: determining a current driving mode from alternative driving modes, wherein the alternative driving modes comprise an electric only priority mode and a hybrid priority mode; under the condition that the current driving mode is the pure electric priority mode, controlling the energy storage battery to drive the automobile; and controlling the range extender to output first power to power the automobile when the current driving mode is the hybrid priority mode, wherein the first power is determined according to the average value of the running power of the automobile. The embodiment of the invention can improve the noise, vibration and harshness NVH performance of the automobile.

Description

Range extender system control method and device and automobile
Technical Field
The invention relates to the technical field of electric automobiles, in particular to a range extender system control method and device and an automobile.
Background
The electric automobile has the advantages of low energy consumption, environmental protection, cleanness and the like, but the pure electric automobile is inconvenient to charge and short in endurance mileage, so that the problem of inconvenient driving is caused. In order to solve the problem, an engine can be added to the electric automobile so as to generate electricity through the range extender to drive the automobile when the residual capacity of the energy storage battery is insufficient.
In the related art, in an automobile provided with a range extender, the automobile is driven by an energy storage battery under the condition that the residual electric quantity of the energy storage battery is high; and under the condition that the residual electric quantity of the energy storage battery is low, the automobile is driven by the range extender. In the related art, whether the automobile is driven by the energy storage battery or the range extender is determined according to the residual electric quantity of the energy storage battery, and under the condition that the residual electric quantity of the energy storage battery is low, the transient power generation power provided by the range extender needs to meet various driving conditions (such as uphill slope, downhill slope, sudden braking and the like) of the automobile, so that the output power of the range extender is changed frequently and greatly, and the Noise, Vibration and Harshness (NVH) performance of the automobile is poor.
Therefore, the range extender system in the related art has the problem of poor NVH performance of the automobile.
Disclosure of Invention
The embodiment of the invention provides a range extender system control method and device and an automobile, and aims to solve the problem that the NVH performance of the automobile is poor in a range extender system in the related art.
In order to solve the technical problems, the invention adopts the following technical scheme:
In a first aspect, an embodiment of the present invention provides a control method for a range extender system, which is applied to an automobile, where the automobile includes an energy storage battery and a range extender, and the method includes:
determining a current driving mode from alternative driving modes, wherein the alternative driving modes comprise an electric only priority mode and a hybrid priority mode;
under the condition that the current driving mode is the pure electric priority mode, controlling the energy storage battery to drive the automobile;
and controlling the range extender to output first power to power the automobile when the current driving mode is the hybrid priority mode, wherein the first power is determined according to the average value of the running power of the automobile.
In a second aspect, an embodiment of the present invention provides a range extender system control device, which is applied to an automobile, where the automobile includes an energy storage battery and a range extender, and the device includes:
the device comprises a determining module, a judging module and a judging module, wherein the determining module is used for determining a current driving mode from alternative driving modes, and the alternative driving modes comprise a pure electric priority mode and a hybrid priority mode;
the first control module is used for controlling the energy storage battery to drive the automobile under the condition that the current driving mode is the pure electric priority mode;
And the second control module is used for controlling the range extender to output first power to supply power to the automobile when the current driving mode is the hybrid priority mode, wherein the first power is determined according to the average value of the running power of the automobile.
In a third aspect, an embodiment of the present invention provides an automobile, which includes an energy storage battery and a range extender, and is characterized in that the automobile further includes the range extender system control device provided in the embodiment of the present invention.
In the embodiment of the invention, the current driving mode is determined from the alternative driving modes, wherein the alternative driving modes comprise a pure electric priority mode and a hybrid priority mode; under the condition that the current driving mode is the pure electric priority mode, controlling the energy storage battery to drive the automobile; and controlling the range extender to output first power to power the automobile when the current driving mode is the hybrid priority mode, wherein the first power is determined according to the average value of the running power of the automobile. The energy storage battery and the range extender can be controlled to output power according to the current driving mode, wherein the energy storage battery is preferentially used for driving the automobile in the pure electric priority mode; under the hybrid priority mode, the output power of the range extender is matched with the average value of the running power of the automobile, so that the output power of the range extender is stable, and the NVH performance of the automobile is improved.
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 description of the embodiments or the prior art 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 that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a flowchart of a method for controlling a range extender system according to an embodiment of the present invention;
fig. 2 is a block diagram of a first control device of a range extender system according to an embodiment of the present invention;
fig. 3 is a block diagram of a second control device of the range extender system according to the embodiment of the present invention;
fig. 4 is a block diagram of a third control device of the range extender system according to the embodiment of the present invention;
fig. 5 is a structural diagram of an automobile according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. 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.
Referring to fig. 1, an embodiment of the present invention provides a method for controlling a range extender system, where the method is applied to an automobile, where the automobile includes an energy storage battery and a range extender, and as shown in fig. 1, the method for controlling the range extender system may include the following steps:
step 101, determining a current driving mode from alternative driving modes, wherein the alternative driving modes comprise a pure electric priority mode and a hybrid priority mode.
In a specific implementation, the step of determining the current driving mode from the candidate driving modes may be determining the current driving mode according to at least one of the detected driving environment, vehicle information, remaining oil amount, remaining power amount, and the like, for example: and under the condition that no energy storage battery charging device exists in the navigation route, determining that the current driving mode is the hybrid priority mode, and under the condition that the energy storage battery charging device exists in the navigation route, determining that the current driving mode is the pure electric priority mode.
Of course, the step of determining the current driving mode from the alternative driving modes may also be determining the current driving mode according to user input, for example: and the user operates the vehicle control system to select the current driving mode as the pure electric priority mode, and then the current driving mode is determined as the pure electric priority mode.
And 102, controlling the energy storage battery to drive the automobile under the condition that the current driving mode is the pure electric priority mode.
And 103, controlling the range extender to output first power to supply power to the automobile when the current driving mode is the hybrid priority mode, wherein the first power is determined according to the average value of the running power of the automobile.
In a specific implementation, the step 102 and the step 103 are alternative steps, that is, only the step 102 is executed when the current driving mode is the electric-only priority mode; if the current driving mode is the mix priority mode, only step 103 is executed.
In a specific implementation, the electric-only priority mode may be understood as: the electric quantity stored in the energy storage battery is preferentially used for carrying out a pure electric control mode on the automobile until the residual electric quantity in the energy storage battery is reduced to a first preset electric quantity, for example: 20 percent. It should be noted that the first preset electric quantity may be obtained by detecting and calibrating according to an actual situation of the vehicle, so that after the remaining electric quantity in the energy storage battery is reduced to the first preset electric quantity, the generator may be driven by the range extender to generate electricity, the generated electric energy and the electric energy output by the energy storage battery are used to drive the vehicle together, and the output power of the energy storage battery and the output power of the range extender in the process may satisfy various driving conditions of the vehicle, for example: uphill, acceleration, etc.
In a specific implementation, the controlling the energy storage battery to drive the vehicle may be understood as: controlling the energy storage battery to output power with corresponding magnitude according to the running power of the automobile, for example: in the process of ascending the vehicle, the running power of the vehicle is 20KW, and the output power of the energy storage battery is 20 KW; in the process of descending the vehicle, the running power of the vehicle is 12KW, and the output power of the energy storage battery is 12 KW.
In addition, in practical application, the range extender may include an engine and a generator, wherein the engine is used for driving the generator to generate electricity, so that the electric power generated by the generator can drive the vehicle or charge the energy storage battery, thereby achieving the effect of supplying energy to the vehicle.
In addition, the mixing priority mode may be understood as: preferably, the vehicle is powered by a range extender, the output power of which is determined from an average value of the operating power of the vehicle, for example: the output power of the range extender is equal to the average value of the running power of the automobile in the historical period; or the output power of the range extender is between the average value of the running power of the automobile in 0.8 time of the historical period and the average value of the running power of the automobile in 1.2 times of the historical period, and the average value of the output power of the range extender is equal to the average value of the running power of the automobile and the like. So that the output power of the range extender is in a stable interval.
It should be noted that, in a specific implementation, an interval in which the output power of the range extender is located may be an economic operating interval of the range extender, so that the economic performance of the range extender is improved, frequent control of increasing the output power or decreasing the output power by the range extender is avoided, and the service life of the range extender is further prolonged.
In addition, when the output power of the range extender is not equal to the running power of the automobile, the output power of the range extender can be subjected to the processing of reducing and compensating by other devices, such as: and adjusting the output power of the range extender through the energy storage battery, so that the power output by the range extender and the energy storage battery together is equal to the running power of the automobile. Of course, the output power of the range extender may also be adjusted by using other newly added energy storage devices, which is not specifically limited herein.
In the embodiment of the invention, the current driving mode is determined from the alternative driving modes, wherein the alternative driving modes comprise a pure electric priority mode and a hybrid priority mode; under the condition that the current driving mode is the pure electric priority mode, controlling the energy storage battery to drive the automobile; and controlling the range extender to output first power to power the automobile when the current driving mode is the hybrid priority mode, wherein the first power is determined according to the average value of the running power of the automobile. The energy storage battery and the range extender can be controlled to output power according to the current driving mode, wherein the energy storage battery is preferentially used for driving the automobile in the pure electric priority mode; under the hybrid priority mode, the output power of the range extender is matched with the average value of the running power of the automobile, so that the output power of the range extender is stable, and the NVH performance of the automobile is improved.
As an alternative embodiment, in the case that the current driving mode is the hybrid priority mode, the step of controlling the range extender to output the first power to power the vehicle includes:
when the current driving mode is the hybrid priority mode and the residual electric quantity of the energy storage battery is within a preset interval, controlling the range extender to output with first power so as to supply energy to the automobile;
the method further comprises the following steps:
and under the condition that the current driving mode is the hybrid priority mode and the residual electric quantity of the energy storage battery is greater than the upper limit value of the preset interval, controlling the energy storage battery to drive the automobile and closing the range extender.
In a specific implementation, the preset interval may be detected or calibrated according to a driving state of the vehicle, a capacity of the energy storage battery, a capacity of the range extender, and the like, for example: under the condition that the capacity of the energy storage battery is large, the preset interval can be 60% -80%, so that under the condition that the residual electric quantity of the energy storage battery is larger than 80%, the automobile is driven by the residual electric quantity of the energy storage battery, and the range extender is started until the residual electric quantity of the energy storage battery is equal to 80%.
In this embodiment, avoided starting the range extender when the residual capacity of energy storage battery is more to make under the less circumstances of operating power of car, the partial power of range extender output does when energy storage battery charges, because energy storage battery is full of the electricity and causes the extravagant problem of electric quantity.
It should be noted that, when the remaining capacity of the energy storage battery is reduced to the lower limit value of the preset interval, the output power of the range extender may be controlled to be greater than the first power, so that the part of the first power that is greater than the operating power of the vehicle is used for charging the energy storage battery. Therefore, the condition that the output power of the range extender cannot meet the running power of the automobile due to the exhaustion of the energy storage battery can be avoided.
As an optional implementation, the method further comprises:
and controlling the energy storage battery to drive the automobile and closing the range extender under the condition that the current driving mode is the hybrid priority mode and the residual oil quantity of the automobile is less than the preset oil quantity.
In a specific implementation, the preset oil amount may be equal to 0, and of course, in an actual application, the preset oil amount may also be set according to a configuration condition of the vehicle, performance, a preference of a user, and the like, and is not specifically limited herein.
In the embodiment, the range extender is prevented from being damaged due to idling under the condition that the residual oil quantity of the automobile is less than the preset oil quantity.
In the specific implementation, a warning may be given when the remaining oil amount of the automobile is less than 20% or 10%, so that the driver can replenish the remaining oil amount in time.
As an alternative embodiment, the step of controlling the range extender to output the first power to power the vehicle when the current driving mode is the hybrid priority mode includes:
when the current driving mode is the hybrid priority mode and the running power of the automobile is greater than the first power, controlling the range extender to output with the first power, and controlling the energy storage battery to output with the second power, wherein the sum of the first power and the second power is equal to the running power of the automobile; or
And under the condition that the current driving mode is the hybrid priority mode and the running power of the automobile is smaller than the first power, controlling the range extender to output the first power, wherein a first part of the first power output by the range extender is used for supplying energy to the automobile, a second part of the first power output by the range extender is used for charging the energy storage battery, and the first part of the first power is equal to the running power of the automobile.
In practical application, the power output end of the range extender can be respectively connected with the power input end of the energy storage battery, the power input end of the motor and the power input end of the vehicle-mounted electric equipment, and the power output end of the energy storage battery is connected with the power input end of the motor and the power input end of the vehicle-mounted electric equipment, thus, the control system on the automobile can calculate the running power required by the automobile according to the configuration parameters of the automobile, the driving road conditions, the position parameters of the accelerator pedal, the position parameters of the brake pedal and the like, and under the condition that the operating power is less than the first power output by the range extender, the power input by the range extender to the power input end of the motor and the power input end of the vehicle-mounted electric equipment is equal to the operating power, and the redundant part charges the energy storage battery through the power input end of the energy storage battery. And under the condition that the first power is smaller than the running power of the automobile, the first power output by the range extender is all input into the electric equipment on the vehicle of the motor, and the second power output by the energy storage battery is also input into the electric equipment on the vehicle of the motor, so that the deficiency of the first power is made up.
In practical application, the average value of the first power output by the range extender is equal to the average value of the running power of the automobile, so that the residual electric quantity of the energy storage battery is ensured to be in a stable interval in the running process of the automobile, and the energy storage battery is prevented from being fully charged or exhausted.
In practical application, compared with a range extender, the energy storage battery has strong controllability on the regulation speed, the regulation amplitude and the like of the output power, and the regulation of the output power of the range extender with a larger amplitude or the regulation of a faster frequency aggravates the mechanical loss of the range extender, reduces the energy conversion efficiency of the range extender and causes economic loss.
In this embodiment, utilize energy storage battery to adjust the first power of increasing journey ware output to make energy storage battery and the common power of output of increasing journey ware equal the operating power of car, thereby ensure that the output of increasing journey ware is in stable interval, just energy storage battery's residual capacity also is in stable interval, thereby promoted the NVH performance and the economic performance of car, and avoided energy waste that energy storage battery's residual capacity is too much and cause, and avoided energy storage battery's residual capacity too little and the problem that the operating power of car under various operating modes can not independently be satisfied to the increasing journey ware that causes.
As an optional implementation manner, in the case that the current driving mode is the electric-only priority mode, the step of controlling the energy storage battery to drive the vehicle includes:
when the current driving mode is the pure electric priority mode and the residual electric quantity of the energy storage battery is greater than or equal to a first preset electric quantity, controlling the energy storage battery to output third power, wherein the third power is equal to the running power of the automobile; or
The current driving mode is pure electric priority mode, just the remaining capacity of energy storage battery is less than under the condition of first preset electric quantity, control increase journey ware with first power carries out the output, in order to right the car energy supply.
In specific implementation, the first preset electric quantity may be detected or calibrated according to parameters such as a type of an automobile, a capacity of an energy storage battery, and a capacity of a range extender, for example: and if the first preset electric quantity is equal to 20% of the capacity of the energy storage battery, starting the range extender under the condition that the residual electric quantity of the energy storage battery is lower than 20%, and enabling the range extender to output first power. In this embodiment, the process of outputting the first power by the range extender is the same as the process of outputting the first power by the range extender in the hybrid priority mode, and in this embodiment, the energy storage battery is used to adjust the first power so that the common output power of the range extender and the energy storage battery meets the implementation operating power of the automobile. In this embodiment, since the first power is determined according to the average value of the operating power of the vehicle, it is possible to ensure that the remaining capacity of the energy storage battery is maintained within a stable interval during the process of outputting the first power by the range extender.
In this embodiment, the remaining capacity of energy storage battery is less than under the condition of first predetermined electric quantity, control increase the journey ware with first power exports, in order to right the car energy supply is avoided the remaining capacity of energy storage battery is low excessively and when causing to open the journey ware, increases the problem that the implementation operating power of car can not be satisfied to journey ware and energy storage battery's common output.
As an optional implementation, the step of determining the current driving mode from the alternative driving modes includes:
under the condition that charging equipment exists within a preset distance range from the automobile, determining that the current driving mode is a pure electric priority mode;
and under the condition that no charging equipment exists within a preset distance range from the automobile, determining that the current driving mode is a hybrid priority mode.
In specific implementation, the preset distance can be determined according to parameters such as the type of the automobile, the capacity of the energy storage battery and the capacity of the range extender, under the condition that the distance between the automobile and the charging equipment is smaller than or equal to the preset distance, the automobile can be determined to have a charging condition, so that a clean and environment-friendly pure electric priority mode is selected, under the condition that the distance between the automobile and the charging equipment is larger than the preset distance, the automobile can be determined not to have the charging condition, the automobile can be charged in time before the electric quantity of the energy storage battery is exhausted, and a hybrid priority mode capable of maintaining the electric quantity of the energy storage battery in a stable interval is selected.
In the implementation, whether the vehicle has the charging condition may also be determined according to a preset driving route of the vehicle, a vehicle use plan of a driver, and the like, for example: the driver plans to drive to a location B beyond 100Km (kilometers) at ten am, and if the location B is provided with a charging device and the residual capacity of the energy storage battery is enough to support the automobile to drive by more than 100Km, the automobile can be determined to have a charging condition, so that the current driving mode is determined to be the pure electric priority mode.
In this embodiment, whether the vehicle has the charging condition is determined according to the distance between the vehicle and the charging device, so that the current driving mode is determined to be the pure electric priority mode when the charging condition is met, and the current driving mode is determined to be the hybrid priority mode when the charging condition is not met. Therefore, a proper driving mode can be selected according to the condition whether the automobile can be charged in time, and the problems that the electric energy of the energy storage battery is exhausted or the utilization rate of the energy storage battery is reduced and the like caused by the improper driving mode are avoided.
In practical application, in order to ensure that the driving range of the automobile in the pure electric priority mode can meet daily requirements of a user, the capacity of the energy storage battery can be increased, and in addition, the output power of the range extender in the embodiment of the invention is smaller than the maximum operating power of the automobile, so that the capacity of the range extender can be appropriately reduced, for example: the capacity of the energy storage battery is larger than 15KWh, and the capacity of the range extender is smaller than 100 KW.
Specifically, in the present embodiment, a storage battery having a capacity of 40.2KWh and a range extender of 62KW are provided, in which the discharge power of the storage battery can reach 240KW, and the mileage of the vehicle having the energy storage battery in the pure electric priority mode can reach 180 Km.
Of course, the capacity of the energy storage battery and the capacity of the range extender may be set to other values according to the type of the automobile and the like.
In the embodiment, the energy storage battery with large capacity and the range extender with small capacity are arranged, so that the energy storage battery can provide enough travelling distance in the pure electric priority mode, the use probability of the range extender is reduced, the environmental protection performance of the automobile is improved, the energy consumption is reduced, in addition, the range extender with small capacity is arranged, the output power of the range extender is subjected to auxiliary adjustment through the energy storage battery in the hybrid priority mode, the output power of the range extender is in a stable interval, the output power of the range extender with small capacity and the output power of the energy storage battery can meet various travelling working conditions of the automobile, and the residual electric quantity of the energy storage battery can be ensured to be in the stable interval in the hybrid priority mode due to the fact that the output power of the range extender is matched with the average value of the running power of the automobile.
Referring to fig. 2, an embodiment of the present invention further provides a device 200 for controlling a range extender system, where the device 200 is applied to an automobile, where the automobile includes an energy storage battery and a range extender, and as shown in fig. 2, the device 200 includes:
the determining module 201 is configured to determine a current driving mode from alternative driving modes, where the alternative driving modes include an electric-only priority mode and a hybrid priority mode;
the first control module 202 is configured to control the energy storage battery to drive the vehicle when the current driving mode is the pure electric priority mode;
and the second control module 203 is used for controlling the range extender to output first power to supply power to the automobile when the current driving mode is the hybrid priority mode, wherein the first power is determined according to the average value of the running power of the automobile.
Optionally, the second control module 203 is specifically configured to:
when the current driving mode is the hybrid priority mode and the residual electric quantity of the energy storage battery is within a preset interval, controlling the range extender to output with first power so as to supply energy to the automobile;
as shown in fig. 3, the apparatus 200 further includes:
And the third control module 204 is used for controlling the energy storage battery to drive the automobile and closing the range extender under the condition that the current driving mode is the hybrid priority mode and the residual electric quantity of the energy storage battery is greater than the upper limit value of the preset interval.
Optionally, as shown in fig. 4, the apparatus 200 further includes:
and the fourth control module 205 is configured to control the energy storage battery to drive the vehicle and close the range extender when the current driving mode is the hybrid priority mode and the remaining oil amount of the vehicle is less than a preset oil amount.
Optionally, the second control module 203 is specifically configured to:
when the current driving mode is the hybrid priority mode and the running power of the automobile is greater than the first power, controlling the range extender to output with the first power, and controlling the energy storage battery to output with the second power, wherein the sum of the first power and the second power is equal to the running power of the automobile; or
And under the condition that the current driving mode is a hybrid priority mode and the running power of the automobile is smaller than the first power, controlling the range extender to output the first power, wherein the first part of the first power output by the range extender is used for supplying energy to the automobile, the second part of the first power output by the range extender is used for charging the energy storage battery, and the first part of the first power is equal to the running power of the automobile. .
Optionally, the first control module 202 is specifically configured to
When the current driving mode is the pure electric priority mode and the residual electric quantity of the energy storage battery is greater than or equal to a first preset electric quantity, controlling the energy storage battery to output third power, wherein the third power is equal to the running power of the automobile; or
The current driving mode is pure electric priority mode, just the remaining capacity of energy storage battery is less than under the condition of first preset electric quantity, control increase journey ware with first power carries out the output, in order to right the car energy supply.
Optionally, the capacity of the energy storage battery is greater than 15KWh, and the capacity of the range extender is less than 100 KW.
Optionally, the determining module 201 is specifically configured to:
under the condition that charging equipment exists within a preset distance range from the automobile, determining that the current driving mode is a pure electric priority mode;
and under the condition that no charging equipment exists within a preset distance range from the automobile, determining that the current driving mode is a hybrid priority mode.
The range extender system control device provided by the embodiment of the invention can realize each process in the range extender system control method provided by the embodiment of the invention, can achieve the same beneficial effect, and is not repeated herein for avoiding repetition.
Referring to fig. 5, an automobile 500 according to an embodiment of the present invention is further provided, as shown in fig. 5, the automobile 500 includes an energy storage battery 501, a range extender 502, and the range extender system control device 200 according to the embodiment of the present invention.
In a specific implementation, the range extender system control device 200 in the present embodiment may be the range extender system control device 200 as described in any one of fig. 2 to 4.
According to the automobile provided by the embodiment of the invention, the current driving mode can be selected, the energy storage battery is preferentially controlled to drive the automobile in the pure electric priority mode, and the range extender outputs the first power in the hybrid priority mode, wherein the first power is determined according to the average value of the running power of the automobile, so that the range extender works at a stable working point, and the NVH performance of the automobile is improved.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (13)

1. A control method of a range extender system is applied to an automobile, the automobile comprises an energy storage battery and a range extender, and the method is characterized by comprising the following steps:
determining a current driving mode from alternative driving modes, wherein the alternative driving modes comprise an electric only priority mode and a hybrid priority mode;
under the condition that the current driving mode is the pure electric priority mode, controlling the energy storage battery to drive the automobile;
and controlling the range extender to output first power to power the automobile when the current driving mode is the hybrid priority mode, wherein the first power is determined according to the average value of the running power of the automobile.
2. The method of claim 1, wherein the step of controlling the range extender to output a first power to power the vehicle if the current driving mode is the hybrid priority mode comprises:
when the current driving mode is the hybrid priority mode and the residual electric quantity of the energy storage battery is within a preset interval, controlling the range extender to output with first power so as to supply energy to the automobile;
The method further comprises the following steps:
and under the condition that the current driving mode is the hybrid priority mode and the residual electric quantity of the energy storage battery is greater than the upper limit value of the preset interval, controlling the energy storage battery to drive the automobile and closing the range extender.
3. The method of claim 1, further comprising:
and controlling the energy storage battery to drive the automobile and closing the range extender under the condition that the current driving mode is the hybrid priority mode and the residual oil quantity of the automobile is less than the preset oil quantity.
4. The method of claim 1, wherein the step of controlling the range extender to output at a first power to power the vehicle if the current driving mode is the hybrid priority mode comprises:
when the current driving mode is the hybrid priority mode and the running power of the automobile is greater than the first power, controlling the range extender to output with the first power, and controlling the energy storage battery to output with the second power, wherein the sum of the first power and the second power is equal to the running power of the automobile; or
And under the condition that the current driving mode is the hybrid priority mode and the running power of the automobile is smaller than the first power, controlling the range extender to output the first power, wherein a first part of the first power output by the range extender is used for supplying energy to the automobile, a second part of the first power output by the range extender is used for charging the energy storage battery, and the first part of the first power is equal to the running power of the automobile.
5. The method according to any one of claims 1 to 4, wherein the step of controlling the energy storage battery to drive the automobile in the case where the current driving mode is the electric-only priority mode includes:
when the current driving mode is the pure electric priority mode and the residual electric quantity of the energy storage battery is greater than or equal to a first preset electric quantity, controlling the energy storage battery to output third power, wherein the third power is equal to the running power of the automobile; or
The current driving mode is pure electric priority mode, just the remaining capacity of energy storage battery is less than under the condition of first preset electric quantity, control increase journey ware with first power carries out the output, in order to right the car energy supply.
6. The method of claim 1, wherein the step of determining the current driving mode from the alternative driving modes comprises:
under the condition that charging equipment exists within a preset distance range from the automobile, determining that the current driving mode is a pure electric priority mode;
and under the condition that no charging equipment exists within a preset distance range from the automobile, determining that the current driving mode is a hybrid priority mode.
7. A range extender system control device is applied to an automobile, the automobile comprises an energy storage battery and a range extender, and the range extender system control device is characterized by comprising:
the device comprises a determining module, a judging module and a judging module, wherein the determining module is used for determining a current driving mode from alternative driving modes, and the alternative driving modes comprise a pure electric priority mode and a hybrid priority mode;
the first control module is used for controlling the energy storage battery to drive the automobile under the condition that the current driving mode is the pure electric priority mode;
and the second control module is used for controlling the range extender to output first power to supply power to the automobile when the current driving mode is the hybrid priority mode, wherein the first power is determined according to the average value of the running power of the automobile.
8. The apparatus of claim 7, wherein the second control module is specifically configured to:
when the current driving mode is the hybrid priority mode and the residual electric quantity of the energy storage battery is within a preset interval, controlling the range extender to output with first power so as to supply energy to the automobile;
the device further comprises:
and the third control module is used for controlling the energy storage battery to drive the automobile and closing the range extender under the condition that the current driving mode is the hybrid priority mode and the residual electric quantity of the energy storage battery is greater than the upper limit value of the preset interval.
9. The apparatus of claim 7, further comprising:
and the fourth control module is used for controlling the energy storage battery to drive the automobile and closing the range extender under the condition that the current driving mode is the hybrid priority mode and the residual oil quantity of the automobile is less than the preset oil quantity.
10. The apparatus of claim 7, wherein the second control module is configured to:
when the current driving mode is the hybrid priority mode and the running power of the automobile is greater than the first power, controlling the range extender to output with the first power, and controlling the energy storage battery to output with the second power, wherein the sum of the first power and the second power is equal to the running power of the automobile; or
And under the condition that the current driving mode is the hybrid priority mode and the running power of the automobile is smaller than the first power, controlling the range extender to output the first power, wherein a first part of the first power output by the range extender is used for supplying energy to the automobile, a second part of the second power output by the range extender is used for charging the energy storage battery, and the first part of the first power is equal to the running power of the automobile.
11. The apparatus of any one of claims 7 to 10, wherein the first control module is configured to control the first motor to operate in a first operating mode
When the current driving mode is the pure electric priority mode and the residual electric quantity of the energy storage battery is greater than or equal to a first preset electric quantity, controlling the energy storage battery to output third power, wherein the third power is equal to the running power of the automobile; or
The current driving mode is pure electric priority mode, just the remaining capacity of energy storage battery is less than under the condition of first preset electric quantity, control increase journey ware with first power carries out the output, in order to right the car energy supply.
12. The apparatus of claim 7, wherein the determining module is specifically configured to:
under the condition that charging equipment exists within a preset distance range from the automobile, determining that the current driving mode is a pure electric priority mode;
and under the condition that no charging equipment exists within a preset distance range from the automobile, determining that the current driving mode is a hybrid priority mode.
13. A vehicle comprising an energy storage battery and a range extender, characterized in that the vehicle further comprises the range extender system control device as claimed in any one of claims 7 to 12.
CN201910439684.8A 2019-05-24 2019-05-24 Range extender system control method and device and automobile Pending CN111976509A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114932811A (en) * 2022-05-30 2022-08-23 重庆金康赛力斯新能源汽车设计院有限公司 Energy recovery method, device, equipment and storage medium

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7224132B2 (en) * 2004-01-22 2007-05-29 Wavecrest Laboratories, Llc. Portable range extender operable in automatic and manual modes
WO2012022455A1 (en) * 2010-08-16 2012-02-23 Avl List Gmbh Method for starting internal power generation in an electric vehicle
CN105922986A (en) * 2016-05-24 2016-09-07 北京新能源汽车股份有限公司 Stroke-increasing type electric automobile and mode switching control method and system thereof
CN106347132A (en) * 2016-09-05 2017-01-25 北京新能源汽车股份有限公司 Electric automobile and range extender start-stop control method and device thereof
CN106394263A (en) * 2016-08-31 2017-02-15 北京新能源汽车股份有限公司 Control method and device for automotive range extender
CN107284254A (en) * 2016-04-05 2017-10-24 现代自动车株式会社 Vehicle and its control method
CN108394401A (en) * 2018-01-30 2018-08-14 清华大学 Control method, system, device and the storage medium of automotive powerplant
CN108437976A (en) * 2018-03-21 2018-08-24 重庆长安汽车股份有限公司 A kind of dynamical system control method of plug-in strong hybrid automobile
DE102018123198A1 (en) * 2017-10-13 2019-04-18 Toyota Motor Engineering & Manufacturing North America, Inc. REDUCE AN ENVIRONMENTAL CONTROL LOAD FOR A HYBRID VEHICLE

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7224132B2 (en) * 2004-01-22 2007-05-29 Wavecrest Laboratories, Llc. Portable range extender operable in automatic and manual modes
WO2012022455A1 (en) * 2010-08-16 2012-02-23 Avl List Gmbh Method for starting internal power generation in an electric vehicle
CN107284254A (en) * 2016-04-05 2017-10-24 现代自动车株式会社 Vehicle and its control method
CN105922986A (en) * 2016-05-24 2016-09-07 北京新能源汽车股份有限公司 Stroke-increasing type electric automobile and mode switching control method and system thereof
CN106394263A (en) * 2016-08-31 2017-02-15 北京新能源汽车股份有限公司 Control method and device for automotive range extender
CN106347132A (en) * 2016-09-05 2017-01-25 北京新能源汽车股份有限公司 Electric automobile and range extender start-stop control method and device thereof
DE102018123198A1 (en) * 2017-10-13 2019-04-18 Toyota Motor Engineering & Manufacturing North America, Inc. REDUCE AN ENVIRONMENTAL CONTROL LOAD FOR A HYBRID VEHICLE
CN108394401A (en) * 2018-01-30 2018-08-14 清华大学 Control method, system, device and the storage medium of automotive powerplant
CN108437976A (en) * 2018-03-21 2018-08-24 重庆长安汽车股份有限公司 A kind of dynamical system control method of plug-in strong hybrid automobile

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
马文胜等: "《新能源汽车技术》", 31 July 2018, 北京理工大学出版社 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114932811A (en) * 2022-05-30 2022-08-23 重庆金康赛力斯新能源汽车设计院有限公司 Energy recovery method, device, equipment and storage medium
CN114932811B (en) * 2022-05-30 2024-04-09 重庆金康赛力斯新能源汽车设计院有限公司 Energy recovery method, device, equipment and storage medium

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