CN110920464B - Electric automobile charging coordination control method and electric automobile - Google Patents
Electric automobile charging coordination control method and electric automobile Download PDFInfo
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- CN110920464B CN110920464B CN201911220152.1A CN201911220152A CN110920464B CN 110920464 B CN110920464 B CN 110920464B CN 201911220152 A CN201911220152 A CN 201911220152A CN 110920464 B CN110920464 B CN 110920464B
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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
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
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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
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses an electric automobile charging coordination control method and an electric automobile. The method comprises the steps of receiving a charging instruction to enter a charging permission state; judging whether to charge in a delayed manner; delaying a charging waiting period, receiving an air conditioner starting signal, judging whether the SOC of the battery exceeds a threshold value, and if the SOC is not less than the threshold value, supplying power to the battery to drive the air conditioner; if the air conditioner is not started or is temporarily set below the threshold value, detecting a hand brake signal, and after the hand brake signal is not available for a period of time, not allowing charging; and when the charging power exceeds a threshold value in the early charging state, the charging power supply supplies power to drive the air conditioner. The invention considers the coordination control problem of multiple targets of human-vehicle safety, delayed charging and air conditioner comfort in the gun inserting charging process, so that the charging process of the vehicle is safer, the intention of a user is more met, and the use experience of the user is met. Is particularly suitable for electric instruction cars.
Description
Technical Field
The invention belongs to the electric automobile operation control technology, and particularly relates to a control technology for the coordinated work of electric vehicle charging and high-power electric appliances.
Background
With the popularization and use of electric vehicles, the scenes in which the electric vehicles are applied are also getting larger. Such as using the electric vehicle as a learner-driven vehicle. The system is used for meeting the enabling requirements of an electric vehicle instruction car, the configuration of the system is generally low, and the basic configuration comprises a quick charging system, a slow charging system, a delayed charging function, an air conditioning system, a parking gear-free system, a pull rope hand brake system and other systems. When the hand brake is used, the hand brake is not pulled up or not tensioned, and if the hand brake is charged, the damage is further aggravated; in addition, during charging, a delay charging request is usually existed to realize delay charging, and meanwhile, the air conditioner is required to be started during delay charging. The requirement needs to solve the problem of charge coordination control of the electric automobile during time delay charging.
CN109703415A discloses "a method and an apparatus for adjusting charging current, and an electric vehicle", which is to calculate a first charging current if it is determined that the output power of the air conditioning system is allowed to be adjusted after receiving a variable power request message sent by the air conditioning system; and then after the air conditioning system is controlled to adjust the output power, the power battery is directly charged by the obtained first charging current, so that the situation that the charging current is not changed in time is avoided, and the influence on the charging time is eliminated.
The method is a relatively complex calculation control process for the electric learner-driven vehicle, and increases the hardware cost.
The control system and the control method for the refrigeration air conditioner of the electric refrigerator car disclosed in CN109520203A increase the output of the high-low voltage power supply contactor of the refrigeration air conditioner and the working state signal of the air conditioner, so that when charging is performed, a whole car battery or a charging pile provides a working power supply for the air conditioner, and finally the temperature inside a container is ensured to meet the requirement of freezing goods all the time. Hardware cost also needs to be increased, and meanwhile, the multi-path hard-wire circuit structure has no arrangement space on the learner-driven vehicle.
Disclosure of Invention
The invention aims to provide a charge coordination control method for an electric vehicle electrical appliance during delayed charging and an electric vehicle thereof, which realize low-cost vehicle configuration and meet the requirements of the vehicle.
One of the technical schemes of the invention is as follows: a method for the charge coordination control of an electric automobile,
s100, receiving a charging instruction and entering a charging permission state;
s200, judging whether to charge in a delayed manner;
s300, delaying the charging waiting period, receiving an air conditioner starting signal, judging whether the SOC of the battery exceeds a threshold value,
if the power is not lower than the threshold value, the battery supplies power to drive the air conditioner;
if the air conditioner is not started or is temporarily set below the threshold value, detecting a hand brake signal, and after the hand brake signal is not available for a period of time, not allowing charging;
and when the charging power exceeds a threshold value in the early charging state, the charging power supply supplies power to drive the air conditioner.
The invention realizes the charge coordination, after the electric vehicle enters the charging state, if an air conditioner starting request signal exists in the time delay charging period, the air conditioner is selected to be driven by the power supplied by the battery or the charging power supply (external power) according to the electric quantity of the battery, and the electric vehicle enters the charging state in advance. Hardware cost is not increased, the use requirement of the vehicle is met, and meanwhile, the safety of the charging process is guaranteed.
The further optimization technical characteristics are as follows: the charging instruction is received after one or more signals that the charging gun is effectively connected and detected, the voltage of the charging gun is effectively detected, the hand brake is in a working state, and the vehicle speed is less than a threshold value are received.
The further optimization technical characteristics are as follows: and in the state of advanced charging, the charging is delayed for continuous timing.
The control strategy does not interrupt the delayed charging timing and can realize the subsequent recovery of the continuous delayed charging state.
The further optimization technical characteristics are as follows: when the air conditioner is closed, checking whether the time delay timing is finished or not, and if not, returning to the time delay charging waiting; and if the time delay timing is finished, entering a charging state.
The initial use requirement of a user is met, and the continuous implementation of the original control strategy of the vehicle is not influenced.
The further optimization technical characteristics are as follows: the battery SOC threshold value in the fast charging state is smaller than the battery SOC threshold value in the slow charging state.
The further optimization technical characteristics are as follows: the charging power threshold value in the fast charging state is larger than the charging power threshold value in the slow charging state. From the initial stage of charging, the climbing speed of the charging power of fast charging is greater than that of slow charging, and the influence on a high-voltage power distribution system when the air conditioner is started is reduced after the charging power is waited to climb to a threshold value.
The further optimization technical characteristics are as follows: when the charging power exceeds the threshold value, the output power of the air conditioner is limited not to exceed a set value in the process of driving the air conditioner by the power supply of the charging power source, particularly during slow charging. The charging power of slow charging is lower, limits the power consumption of the air conditioner, ensures that the SOC of the battery cannot be reduced below a safety threshold value, and ensures that the battery system can start the power demand of the heat dissipation system at any time. The set value is lower than the maximum power of the air conditioner, and can meet the lower air conditioner comfort request. The device is simple and easy to control, and can simultaneously meet the coordination work of charging and air conditioning.
One of the technical schemes of the invention is as follows: an electric vehicle comprising:
the high-voltage battery management system is used for feeding back the SOC signal and the charging permission signal;
a charge controller for receiving the charge wake-up signal and sending out a charge signal
The air conditioning system control unit is used for sending a request signal and receiving a pause instruction and a power limit instruction of the whole vehicle controller;
the delay charging request control unit is used for sending a delay waiting instruction and calculating whether the charging terminal is in a delay waiting state;
the hand brake sensor outputs signals to the whole vehicle control unit
The whole vehicle control unit receives the wake-up signal of the charging controller and sends out control instructions of charging permission, charging request entering in advance, air conditioner pause and air conditioner power limitation;
and operating the charge coordination control method.
The invention considers the coordination control problem of multiple targets of human-vehicle safety, delayed charging and air conditioner comfort in the gun inserting charging process, so that the charging process of the vehicle is safer, the intention of a user is more met, and the use experience of the user is met. Is particularly suitable for electric instruction cars.
Drawings
FIG. 1 is a schematic diagram of a vehicle system connection.
Fig. 2 is a flow chart of charge coordination control.
Detailed Description
The following detailed description is provided for the purpose of explaining the claimed embodiments of the present invention so that those skilled in the art can understand the claims. The scope of the invention is not limited to the following specific implementation configurations. It is intended that the scope of the invention be determined by those skilled in the art from the following detailed description, which includes claims that are directed to this invention.
As shown in figure 1 of the drawings, in which,
the high-voltage battery management system 100 feeds back an SOC signal and a charge permission signal through CAN network communication; the charging permission signals comprise a fast charging permission signal and a slow charging permission signal.
And the charging controller 200 is configured to receive the charging wake-up signal and send a charging signal. And receiving low-voltage signals from the high-voltage battery management system 100 to the fast charging interface and the slow charging interface, then waking up the whole vehicle controller, and sending connection information of the fast charging interface and the slow charging interface, fast charging permission and slow charging permission through a CAN (controller area network). The charging control receives the coordination control instruction of the vehicle control unit through the CAN network, and the coordination instruction of the vehicle control unit is brought into calculation during the charging process control
The air conditioning system control unit 300 sends opening and closing request information, and receives a suspension instruction and a power limitation instruction of the vehicle control unit;
a delay charging request control unit 400, configured to send a delay waiting instruction, and calculate whether the mobile terminal is in a delay waiting state;
the hand brake sensor 500 outputs a signal to the vehicle control unit, and informs the vehicle controller of the working state of the hand brake pulled up or not pulled up through a hard wire; the hand brake signal in this embodiment is a parking signal, and other parking devices may be used.
The whole vehicle control unit 600 receives the wake-up signal of the charge controller and sends control instructions of charge permission, advance charge request, air conditioner pause and air conditioner power limitation; the vehicle control unit 600 receives information of the hand brake sensor through a hard wire, and wakes up the vehicle CAN network system after receiving a wake-up signal of the hard wire of the charge controller. The intelligent charging system is responsible for the coordination control function of charging and sends coordination control instructions of quick charging permission, slow charging permission, early entering quick charging request, early entering slow charging request, charging mode switching permission, charging termination, air conditioner suspension and air conditioner power limitation through the CAN network. And sending a prompt code of charging pull hand brake to the instrument display control unit through the CAN network.
The instrument display control unit 700 receives the prompt code "please pull the hand brake for charging", and displays the warning language and warning sound "please pull the hand brake for charging".
The vehicle speed monitoring unit 800 feeds back vehicle speed information after waking up during gun insertion.
The device is equipped on an electric vehicle, in particular to an electric instruction car.
The charge coordination control implemented by the device comprises two coordination modes of quick charge and slow charge, and is specifically shown in fig. 2.
S100 receiving a charging instruction to enter a charging permission state
The charging control unit is awakened by external voltage to further awaken the whole vehicle controller, and the whole vehicle controller awakens a whole vehicle network and comprises an instrument control unit, a high-voltage battery management unit, a vehicle speed monitoring unit, a delay charging control unit and an air conditioner control unit.
When the quick charging gun connection detection is effective, the quick charging gun voltage detection is effective, the hand brake is in a working state, the vehicle speed is less than a threshold value (0.1Km/h), and the quick charging permission information of the high-voltage battery management system exists, the coordination control instruction is the quick charging permission. Otherwise, the state is quickly charged into an impermissible state.
When the connection detection of the slow charging gun is effective, the voltage detection of the slow charging gun is effective, the hand brake signal is in a working state, the vehicle speed is less than a threshold value (0.1Km/h), and the high-voltage battery management system permits fast and slow charging, if no fast charging permits, the coordination control command is slow charging permit, otherwise, the slow charging does not permit.
S200, judging whether to charge in a delayed manner;
s300, delaying the charging waiting period, receiving an air conditioner starting signal, and judging whether the SOC of the battery exceeds a threshold value
Embodiment 1 enters the delay waiting when the delay charging is set when the entry into the fast charging is permitted, otherwise, the step is skipped. And in the process of waiting for the delay of the quick charging, the air conditioner is not started, and the quick charging is allowed to be started if the timing is finished.
And when the air conditioner is started during the delay quick charging waiting, if the SOC is not lower than 11%, the high-voltage battery supplies power to drive the air conditioner. When the air conditioner is started during the delay quick charging waiting, if the SOC is lower than 11%, the hand brake is checked: if the hand brake is not pulled up, sending a prompt code of 'please pull the hand brake', and if the hand brake is not pulled up within 10 minutes, not allowing charging; and if the hand brake is pulled up or pulled up in time, requesting to enter early quick charging.
When the request is carried out for early quick charging, if the SOC is lower than 11% because the air conditioner is driven by the high-voltage battery for power supply in the last step, the air conditioner is suspended for switching the battery from a discharging state to a charging state, and the charge system waits for response; if the SOC is lower than 11% in the last step, the air conditioner is not started, the battery is not discharged, and switching is not needed; when the charging system manages, responds and feeds back that the charging state is normal and the charging power exceeds 2Kw, the operation of the air conditioner is recovered, and the air conditioner is driven by an external power supply; otherwise the air conditioner continues to pause.
When the charging is carried out in advance, the delay charging timing is not interrupted; when the air conditioner is closed, whether the delay timing is finished or not is checked, and if not, the time delay quick charging waiting is returned; and if the delay timing is finished, entering into general fast charging.
Embodiment 2 when the admission to slow charging, set up the time delay charging then enter the time delay and wait, otherwise skip this step. And in the slow charging delay waiting process, the air conditioner is not started, and the quick charging is allowed to be started if the timing is finished.
And when the air conditioner is started during the delay slow charging waiting, if the SOC is not lower than 13%, the high-voltage battery supplies power to drive the air conditioner. When the air conditioner is started during the delayed slow charging waiting, if the SOC is lower than 13%, the hand brake is checked: if the hand brake is not pulled up, sending a prompt code of 'please pull the hand brake', and if the hand brake is not pulled up within 10 minutes, not allowing charging; and if the hand brake is pulled up or pulled up in time, requesting to enter into early slow charging.
When the request is slowly charged in advance, the air conditioner is suspended and waits for the response of the charging system. When the management response charging state of the charging system is normal and the charging power is not lower than 1.2KW, the air conditioner operation is recovered, the air conditioner operation power is limited to 1KW, and the air conditioner is driven by an external power supply; otherwise the air conditioner continues to pause.
When the slow charging is carried out in advance, the delay charging timing is not interrupted; when the air conditioner is closed, whether the delay timing is finished or not is checked, and if not, the time delay slow charging waiting is returned; and entering normal slow charging if the delay time is over.
S400 charge coordination instruction
In the general quick charging, the power of the air conditioning system is not limited. The air conditioning system power is limited during normal trickle charge.
S500: charge termination instruction
If the charging coordination control instruction does not permit charging, the hand brake is released during charging, the vehicle speed exceeds 0.1Km/h during charging, the accumulated displacement exceeds 0.2 m from the starting moment of gun insertion, the charging management system does not permit charging, and the battery management system does not permit charging.
Claims (9)
1. A method for controlling charging coordination of an electric automobile is characterized by comprising the following steps:
s100, receiving a charging instruction and entering a charging permission state;
s200, judging whether to charge in a delayed manner;
s300, delaying the charging waiting period, receiving an air conditioner starting signal, judging whether the SOC of the battery exceeds a threshold value,
if the current is not lower than the threshold value, the battery supplies power to drive the air conditioner;
if the voltage is lower than the threshold value, the air conditioner is not started or is temporarily set, the hand brake signal is detected, and the hand brake signal is not available within a period of time, so that the air conditioner is not allowed to be charged;
and when the charging power exceeds a threshold value in the early charging state, the charging power supply supplies power to drive the air conditioner.
2. The electric vehicle charging coordination control method according to claim 1, characterized in that: the charging instruction is received after one or more signals that the charging gun is effectively connected and detected, the voltage of the charging gun is effectively detected, the hand brake is in a working state, and the vehicle speed is less than a threshold value are received.
3. The electric vehicle charging coordination control method according to claim 1, characterized in that: and in the state of advanced charging, the charging is delayed for continuous timing.
4. The electric vehicle charging coordination control method according to claim 3, characterized in that: in the process of the delayed charging continuous counting, when the air conditioner is closed, whether the delayed timing is finished or not is checked, and if not, the delayed charging is returned to wait; and if the time delay timing is finished, entering a charging state.
5. The electric vehicle charging coordination control method according to claim 1, characterized in that: the battery SOC threshold value in the fast charging state is smaller than the battery SOC threshold value in the slow charging state.
6. The electric vehicle charging coordination control method according to claim 1, characterized in that: the charging power threshold value in the fast charging state is larger than the charging power threshold value in the slow charging state.
7. The electric vehicle charging coordination control method according to claim 1, characterized in that: when the charging power exceeds the threshold value, the output power of the air conditioner is limited not to exceed a set value in the process of driving the air conditioner by the power supplied by the charging power supply.
8. The electric vehicle charging coordination control method according to claim 7, characterized in that: and when the slow charging is carried out, the output power of the air conditioner is limited not to exceed a set value.
9. An electric vehicle, characterized in that it comprises:
the high-voltage battery management system is used for feeding back the SOC signal and the charging permission signal;
the charging controller is used for receiving the charging wake-up signal and sending out a charging signal;
the air conditioning system control unit is used for sending a request signal and receiving a pause instruction and a power limit instruction of the whole vehicle controller;
the delay charging request control unit is used for sending a delay waiting instruction and calculating whether the charging terminal is in a delay waiting state;
the hand brake sensor outputs signals to the whole vehicle control unit;
the whole vehicle control unit receives the wake-up signal of the charging controller and sends out control instructions of charging permission, charging request entering in advance, air conditioner pause and air conditioner power limitation;
operating the charge coordination control method according to claims 1-8.
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| CN201911220152.1A CN110920464B (en) | 2019-12-03 | 2019-12-03 | Electric automobile charging coordination control method and electric automobile |
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| CN113696770A (en) * | 2021-08-03 | 2021-11-26 | 神龙汽车有限公司 | Vehicle timing charging and instant charging coordination control system and method |
| CN114290940B (en) * | 2022-03-09 | 2022-06-24 | 神龙汽车有限公司 | Delay charging control method for electric automobile |
| CN115817104B (en) * | 2022-11-18 | 2024-06-04 | 东风柳州汽车有限公司 | Air conditioner control method and device for new energy commercial vehicle and storage medium |
| CN116022031A (en) * | 2022-12-01 | 2023-04-28 | 阿尔特汽车技术股份有限公司 | New energy automobile slow charging energy management control method, device, equipment and medium |
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