CN110539710B - Power management device and management method for pure electric vehicle with quick and slow charging function - Google Patents
Power management device and management method for pure electric vehicle with quick and slow charging function Download PDFInfo
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- CN110539710B CN110539710B CN201910837980.3A CN201910837980A CN110539710B CN 110539710 B CN110539710 B CN 110539710B CN 201910837980 A CN201910837980 A CN 201910837980A CN 110539710 B CN110539710 B CN 110539710B
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- 238000007726 management method Methods 0.000 title claims description 106
- 230000002618 waking effect Effects 0.000 claims description 13
- 239000000498 cooling water Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 230000005059 dormancy Effects 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 3
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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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
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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
-
- 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
- B60L53/30—Constructional details of charging stations
- B60L53/31—Charging columns specially adapted for electric vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
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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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for 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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Transportation (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 a power management device of a pure electric logistics vehicle with fast and slow charging, which comprises a battery pack, a key switch, a motor controller, a vehicle body controller, an instrument controller, a whole vehicle awakening relay, a charging awakening relay, a whole vehicle controller, a high-voltage to low-voltage controller, a high-voltage battery management controller, a slow charging controller, a fast charging pile and a slow charging pile which are matched with the power management device for use, and the modules are matched for executing the starting, the fast charging, the slow charging and the dormancy of the pure electric logistics vehicle. The invention realizes the quick charge and the slow charge of the pure electric logistics vehicle, simultaneously maintains the technical advantages of the original power management device, reduces the electric loss of the low-voltage end of the pure electric logistics vehicle, improves the charging efficiency of the pure electric logistics vehicle, and prolongs the service life of the high-voltage battery and the service time of the pure electric logistics vehicle.
Description
Technical Field
The invention relates to the technical field of electric automobiles, in particular to a power management device of a pure electric vehicle with fast and slow charging and a power management method applied to the power management device.
Background
Because the electric logistics vehicle needs to travel more mileage every day, the electric logistics vehicle is basically provided with a quick charging function. The quick charging function can charge more electric quantity for the high-voltage battery in a shorter time.
The current electric logistics vehicle is basically not provided with a slow charging function, but the service life of a high-voltage battery and the service time and frequency of the electric logistics vehicle are considered, and the slow charging function of the electric logistics vehicle becomes an optional functional configuration.
Disclosure of Invention
The invention provides a power management device and a management method for a pure electric logistics vehicle with quick and slow charging, which are used for realizing quick charging and slow charging of the pure electric logistics vehicle, simultaneously maintaining the technical advantages of the original power management device, reducing the electric loss of a low-voltage end of the pure electric logistics vehicle, improving the charging efficiency of the pure electric logistics vehicle, and prolonging the service life of a high-voltage battery and the service time of the pure electric logistics vehicle.
In order to solve the technical problems, the invention adopts the following technical scheme:
The utility model provides a take power management device of pure electric current car of slow charge, power management device includes group battery, key switch, motor controller, automobile body controller, instrument controller, whole car wake-up relay, charge wake-up relay, whole car controller, high voltage changes low voltage controller, high voltage battery management controller, slow charge controller, with the supporting quick charge stake and the slow charge stake that uses of power management device, key switch's one end with group battery electricity is connected, key switch's the other end is equipped with Off end, on end and Start end, on end respectively with motor controller, automobile body controller with instrument controller and whole car wake-up relay's signal input part electricity is connected, wake-up whole car relay's signal output terminal ground, whole car wake-up relay's strong electric input end with group battery electricity is connected, whole car wake-up relay's strong electric output end is connected with whole car controller, high voltage controller changes low voltage controller electric charge stake, high voltage controller wake-up relay is connected with high voltage battery management switch, on end and Start end through first wake-up signal line respectively with motor controller, automobile wake-up relay's strong electric input end, high voltage controller wake-up relay is connected with the high voltage battery charge stake, high voltage controller wake-up relay's strong electric input end is connected with the input end, high voltage battery charge relay is connected with the input end of high voltage controller wake-up relay, the input end of the high-voltage battery management controller is electrically connected with the output end of the slow charging controller through a fifth wake-up signal line, the input end of the slow charging controller is electrically connected with the slow charging pile through a fourth wake-up signal line, the Start end is electrically connected with the input end of the whole vehicle controller through a Start signal line, and the output end of the whole vehicle controller is electrically connected with the strong current input end of the charging wake-up relay.
The invention aims to solve the technical problems, and adopts the following further technical scheme:
Further, the power management device comprises a cooling water pump, the cooling water pump is connected with the whole vehicle controller, and the whole vehicle controller is used for judging the whole vehicle state and controlling the cooling water pump to cool the high-voltage-to-low-voltage controller.
Further, the whole vehicle wake-up relay and the charging wake-up relay are both provided with pull-up resistors for pulling up the electric level.
Further, the motor controller, the vehicle body controller and the instrument controller are electrically connected in parallel, the whole vehicle controller, the high-voltage to low-voltage controller, the slow charging controller and the charging wake-up relay are electrically connected in parallel, the fast charging pile is electrically connected with the high-voltage battery management controller in series, and the slow charging pile is electrically connected with the slow controller in series.
The invention also provides a management method for the pure electric vehicle with the quick and slow charging, which comprises the following steps:
S1, when a driver switches a key switch from an Off end to a non-Off end, and a first wake-up signal line is pulled up to a high level, a second wake-up signal line is pulled up to a low level, a third wake-up signal line is pulled down to a low level, a fourth wake-up signal line is pulled down to a low level, and a pure electric vehicle is in a starting running state and enters a power management mode in the starting running state;
S2, when a driver switches a key switch to an Off end, and a first wake-up signal line is pulled down to a low level, a second wake-up signal line is pulled up to a high level, a third wake-up signal line is pulled up to a high level, a fourth wake-up signal line is pulled down to a low level, and a fifth wake-up signal line is pulled down to a low level, the pure electric vehicle is in a fast charging state, and enters a power management mode under the fast charging state;
s3, when the driver switches the key switch to the Off end, and the first wake-up signal line is pulled down to a low level, the second wake-up signal line is pulled up to a high level, the third wake-up signal line is pulled down to a low level, the fourth wake-up signal line is pulled up to a high level, and the pure electric vehicle is in a slow charging state and enters a power management mode in the slow charging state;
s4, when the driver switches the key switch from the non-Off end to the Off end, the first wake-up signal line is pulled down to be at a low level, and the second wake-up signal line is pulled down to be at a low level, so that the pure electric vehicle is in a dormant state.
The invention aims to solve the technical problems, and adopts the following further technical scheme:
further, in S1, the power management mode in the start-up running state includes the steps of:
S11, switching a key switch from an Off end to a non-Off end, pulling a first wake-up signal line to a high level, and waking up the motor controller, the vehicle body controller and the instrument controller;
S12, the first wake-up signal line pulls up the level of the second wake-up signal line through the whole vehicle wake-up relay, and wakes up the whole vehicle controller, the high-voltage to low-voltage controller, the slow charge controller and the high-voltage battery management controller;
and S13, the whole vehicle controller judges the state of the starting signal line and executes the starting action of the pure electric logistics vehicle.
Further, in S2, entering the power management mode in the fast charge state includes the steps of:
s21, switching a key switch from a non-Off end to an Off end, wherein the first wake-up signal line is pulled to be low level, the motor controller, the vehicle body controller and the instrument controller are not woken up, the whole vehicle wake-up relay does not execute actions, the second wake-up signal line is pulled to be low level, and the whole vehicle controller, the high-voltage to low-voltage controller, the slow charge controller and the high-voltage battery management controller are not woken up;
s22, waking up the high-voltage battery management controller when the quick charge pile is pulled to a high level through the third wake-up signal line;
s23, the high-voltage battery management controller judges the charging requirement of the electric logistics vehicle and executes the charging request of the electric logistics vehicle;
S24, the charging wake-up relay pulls up the level of the second wake-up signal line, wakes up the whole vehicle controller and the high-voltage to low-voltage controller, and the pure electric vehicle starts to charge quickly.
Further, in S3, entering the power management mode in the slow charge state includes the steps of:
S31, switching a key switch from a non-Off end to an Off end, wherein the first wake-up signal line is pulled to be low level, the motor controller, the vehicle body controller and the instrument controller are not woken up, the whole vehicle wake-up relay does not execute actions, the second wake-up signal line is pulled to be low level, and the whole vehicle controller, the high-voltage to low-voltage controller, the slow charge controller and the high-voltage battery management controller are not woken up;
s32, when the slow charging pile is pulled to a high level through the fourth wake-up signal line, waking up the slow charging controller;
s33, the slow charge controller pulls high level through the fifth wake-up signal line to wake up the high-voltage battery management controller;
S34, the high-voltage battery management controller judges the charging requirement of the electric logistics vehicle and executes the charging request of the electric logistics vehicle;
And S35, the charging wake-up relay pulls up the level of the second wake-up signal line, wakes up the whole vehicle controller and the high-voltage to low-voltage controller, and starts slow charging.
Further, in S4, the key switch is switched from the non-Off end to the Off end, the first wake-up signal line is pulled to a low level, the motor controller, the body controller and the instrument controller are not woken up, the whole vehicle wake-up relay does not execute an action, the second wake-up signal line is pulled to a low level, the whole vehicle controller, the high-voltage to low-voltage controller, the slow charge controller and the high-voltage battery management controller are not woken up, and the pure electric vehicle starts to sleep.
The beneficial effects of the invention are as follows:
1. According to the invention, a whole vehicle wake-up relay is added between a key switch and a controller (such as a whole vehicle controller, a high-voltage to low-voltage controller, a low-voltage charging controller and a high-voltage battery management controller) related to quick and slow charging, and other controllers (such as a motor controller, a vehicle body controller and an instrument controller) are isolated from being waken when the electric vehicle is subjected to quick charging or slow charging;
2. a charging wake-up relay is added between the high-voltage battery management controller and the fast-charging related controller (such as a whole vehicle controller and a high-voltage-to-low-voltage controller), so that the fast-charging related controller (such as the whole vehicle controller and the high-voltage-to-low-voltage controller) is waken up, and the fast-charging effect is realized in a matched manner;
3. A charging wake-up relay is added between a high-voltage battery management controller and a slow charging related controller (such as a whole vehicle controller, a high-voltage-to-low-voltage controller and a slow charging controller) to wake up the slow charging related controller (such as the whole vehicle controller, the high-voltage-to-low-voltage controller and the slow charging controller) to realize the slow charging effect in a matched manner;
4. The invention changes a little on the basis of the existing power management device with the rapid charging function, increases the slow charging function, enables the existing power management device to support the rapid and slow charging functions, and can keep the technical advantages of the original power management device: only wake up necessary quick, slow charge relevant controller and work, reduce the electric loss of pure electric logistics car low pressure end, improve pure electric logistics car's charging efficiency, extension high-voltage battery's life and pure electric logistics car's live time.
The foregoing description is only an overview of the present invention, and is intended to provide a better understanding of the present invention, as it is embodied in the following description, with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of a power management device with fast and slow charging for a pure electric vehicle according to the present invention;
Fig. 2 is a flow chart of a method for managing a pure electric vehicle with fast and slow charging according to the present invention;
fig. 3 is a signal state table of a wake-up signal line in a key switch switching process of the pure electric vehicle according to the present invention;
fig. 4is a signal state table of a wake-up signal line in a fast charging process of the electric vehicle according to the present invention;
FIG. 5 is a signal state table of wake-up signal lines during a slow charge of the package delivery device according to the present invention;
The parts in the drawings are marked as follows:
the battery pack 1, the key switch 2, the motor controller 3, the vehicle body controller 4, the instrument controller 5, the whole vehicle awakening relay 6, the charging awakening relay 7, the whole vehicle controller 8, the high-voltage to low-voltage controller 9, the high-voltage battery management controller 10, the slow charging controller 11, the quick charging pile 12, the slow charging pile 13, the first awakening signal line 14, the second awakening signal line 15, the third awakening signal line 16, the fourth awakening signal line 17, the fifth awakening signal line 18, the cooling water pump 19, the pull-up resistor 20 and the starting signal line 21.
Detailed Description
The following specific embodiments of the invention are described in order to provide those skilled in the art with an understanding of the present disclosure. The invention may be embodied in other different forms, i.e., modified and changed without departing from the scope of the invention.
Example 1
A power management device of a pure electric vehicle with fast and slow charging comprises a battery pack 1, a key switch 2, a motor controller 3, a vehicle body controller 4, an instrument controller 5, a vehicle wake-up relay 6, a charging wake-up relay 7, a vehicle controller 8, a high-voltage to low-voltage controller 9, a high-voltage battery management controller 10, a slow charging controller 11, a fast charging pile 12 and a slow charging pile 13 which are matched with the power management device, one end of the key switch is electrically connected with the battery pack, the other end of the key switch is provided with an Off end, an On end and a Start end, the On end is respectively electrically connected with signal input ends of the motor controller, the vehicle controller, the instrument controller and the vehicle wake-up relay through a first wake-up signal line 14, the signal output ends of the vehicle wake-up relay are grounded, the strong electric input end of the vehicle wake-up relay is electrically connected with the battery pack, the strong electric vehicle wake-up relay output end is respectively connected with the high-voltage battery management relay through a second wake-up line 15, the high-voltage battery management relay is electrically connected with the high-voltage battery management relay input end 16, the input end of the high-voltage battery management controller is electrically connected with the output end of the slow charging controller through a fifth wake-up signal line 18, the input end of the slow charging controller is electrically connected with the slow charging pile through a fourth wake-up signal line 17, the Start end is electrically connected with the input end of the whole vehicle controller through a Start signal line 21, and the output end of the whole vehicle controller is electrically connected with the strong electric input end of the charging wake-up relay.
The power management device comprises a cooling water pump 19, the cooling water pump is connected with the whole vehicle controller, and the whole vehicle controller is used for judging the whole vehicle state and controlling the cooling water pump to cool the high-voltage-to-low-voltage controller.
The whole car wake-up relay and the charging wake-up relay are both provided with a pull-up resistor 20 for pulling up the level.
The motor controller, the vehicle body controller and the instrument controller are electrically connected in parallel, the whole vehicle controller, the high-voltage-to-low-voltage controller, the slow charging controller and the charging awakening relay are electrically connected in parallel, the fast charging pile is electrically connected with the high-voltage battery management controller in series, and the slow charging pile is electrically connected with the slow controller in series.
Example 2
A management method for a pure electric vehicle with fast and slow charging, as shown in fig. 2-5, comprises the following steps:
S1, when a driver switches a key switch from an Off end to a non-Off end, and a first wake-up signal line is pulled up to a high level, a second wake-up signal line is pulled up to a low level, a third wake-up signal line is pulled down to a low level, a fourth wake-up signal line is pulled down to a low level, and a pure electric vehicle is in a starting running state and enters a power management mode in the starting running state;
S2, when a driver switches a key switch to an Off end, and a first wake-up signal line is pulled down to a low level, a second wake-up signal line is pulled up to a high level, a third wake-up signal line is pulled up to a high level, a fourth wake-up signal line is pulled down to a low level, and a fifth wake-up signal line is pulled down to a low level, the pure electric vehicle is in a fast charging state, and enters a power management mode under the fast charging state;
s3, when the driver switches the key switch to the Off end, and the first wake-up signal line is pulled down to a low level, the second wake-up signal line is pulled up to a high level, the third wake-up signal line is pulled down to a low level, the fourth wake-up signal line is pulled up to a high level, and the pure electric vehicle is in a slow charging state and enters a power management mode in the slow charging state;
s4, when the driver switches the key switch from the non-Off end to the Off end, the first wake-up signal line is pulled down to be at a low level, and the second wake-up signal line is pulled down to be at a low level, so that the pure electric vehicle is in a dormant state.
In S1, the power management mode in the start-up running state includes the steps of:
S11, switching a key switch from an Off end to a non-Off end, pulling a first wake-up signal line to a high level, and waking up the motor controller, the vehicle body controller and the instrument controller;
S12, the first wake-up signal line pulls up the level of the second wake-up signal line through the whole vehicle wake-up relay, and wakes up the whole vehicle controller, the high-voltage to low-voltage controller, the slow charge controller and the high-voltage battery management controller;
and S13, the whole vehicle controller judges the state of the starting signal line and executes the starting action of the pure electric logistics vehicle.
In S2, entering the power management mode in the fast charge state includes the steps of:
s21, switching a key switch from a non-Off end to an Off end, wherein the first wake-up signal line is pulled to be low level, the motor controller, the vehicle body controller and the instrument controller are not woken up, the whole vehicle wake-up relay does not execute actions, the second wake-up signal line is pulled to be low level, and the whole vehicle controller, the high-voltage to low-voltage controller, the slow charge controller and the high-voltage battery management controller are not woken up;
s22, waking up the high-voltage battery management controller when the quick charge pile is pulled to a high level through the third wake-up signal line;
s23, the high-voltage battery management controller judges the charging requirement of the electric logistics vehicle and executes the charging request of the electric logistics vehicle;
S24, the charging wake-up relay pulls up the level of the second wake-up signal line, wakes up the whole vehicle controller and the high-voltage to low-voltage controller, and the pure electric vehicle starts to charge quickly.
In S3, entering the power management mode in the slow charge state includes the steps of:
S31, switching a key switch from a non-Off end to an Off end, wherein the first wake-up signal line is pulled to be low level, the motor controller, the vehicle body controller and the instrument controller are not woken up, the whole vehicle wake-up relay does not execute actions, the second wake-up signal line is pulled to be low level, and the whole vehicle controller, the high-voltage to low-voltage controller, the slow charge controller and the high-voltage battery management controller are not woken up;
s32, when the slow charging pile is pulled to a high level through the fourth wake-up signal line, waking up the slow charging controller;
s33, the slow charge controller pulls high level through the fifth wake-up signal line to wake up the high-voltage battery management controller;
S34, the high-voltage battery management controller judges the charging requirement of the electric logistics vehicle and executes the charging request of the electric logistics vehicle;
And S35, the charging wake-up relay pulls up the level of the second wake-up signal line, wakes up the whole vehicle controller and the high-voltage to low-voltage controller, and starts slow charging.
In S4, the key switch is switched from a non-Off end to an Off end, the first wake-up signal line is pulled to be low level, the motor controller, the vehicle body controller and the instrument controller are not woken up, the whole vehicle wake-up relay does not execute action, the second wake-up signal line is pulled to be low level, the whole vehicle controller, the high-voltage to low-voltage controller, the slow charge controller and the high-voltage battery management controller are not woken up, and the pure electric vehicle starts to sleep.
The working process and working principle of the invention are as follows:
Power management mode in the running state is started:
Firstly, switching a key switch from an Off end to a non-Off end, pulling a first wake-up signal line to a high level, and waking up the motor controller, the vehicle body controller and the instrument controller;
Then, the first wake-up signal line pulls up the level of the second wake-up signal line through the whole vehicle wake-up relay, and wakes up the whole vehicle controller, the high-voltage to low-voltage controller, the slow charge controller and the high-voltage battery management controller;
And finally, the whole vehicle controller judges the state of the starting signal line and executes the starting action of the pure electric logistics vehicle.
Power management mode in fast charge state:
Firstly, a key switch is switched from a non-Off end to an Off end, the first wake-up signal line is pulled to be low level, the motor controller, the vehicle body controller and the instrument controller are not woken up, the whole vehicle wake-up relay does not execute actions, the second wake-up signal line is pulled to be low level, and the whole vehicle controller, the high-voltage to low-voltage controller, the slow charge controller and the high-voltage battery management controller are not woken up;
then, when the quick charge pile is pulled to a high level through the third wake-up signal line, waking up the high-voltage battery management controller;
then, the high-voltage battery management controller judges the charging requirement of the pure electric logistics vehicle and executes the charging request of the pure electric logistics vehicle;
And finally, pulling up the level of the second wake-up signal line by the charge wake-up relay, waking up the whole vehicle controller and the high-voltage to low-voltage controller, and starting quick charge of the pure electric vehicle.
Power management mode in slow charge state:
Firstly, a key switch is switched from a non-Off end to an Off end, the first wake-up signal line is pulled to be low level, the motor controller, the vehicle body controller and the instrument controller are not woken up, the whole vehicle wake-up relay does not execute actions, the second wake-up signal line is pulled to be low level, and the whole vehicle controller, the high-voltage to low-voltage controller, the slow charge controller and the high-voltage battery management controller are not woken up;
Then, when the slow charging pile is pulled to a high level through the fourth wake-up signal line, waking up the slow charging controller;
Then, the slow charge controller pulls high level through the fifth wake-up signal line to wake up the high-voltage battery management controller;
then, the high-voltage battery management controller judges the charging requirement of the pure electric logistics vehicle and executes the charging request of the pure electric logistics vehicle;
and finally, the charging wake-up relay pulls up the level of the second wake-up signal line, wakes up the whole vehicle controller and the high-voltage to low-voltage controller, and starts slow charging.
Power management mode in sleep state:
The key switch is switched from a non-Off end to an Off end, the first wake-up signal line is pulled to be low level, the motor controller, the vehicle body controller and the instrument controller are not woken up, the whole vehicle wake-up relay does not execute action, the second wake-up signal line is pulled to be low level, the whole vehicle controller, the high-voltage to low-voltage controller, the slow charge controller and the high-voltage battery management controller are not woken up, and the pure electric vehicle starts to sleep.
The foregoing description is only illustrative of the present invention and is not to be construed as limiting the scope of the invention, and all equivalent structures made by the description of the invention and the accompanying drawings, or direct or indirect application in other related technical fields, are equally included in the scope of the invention.
Claims (7)
1. A power management device of a pure electric vehicle with fast and slow charging is characterized in that: the power management device comprises a battery pack (1), a key switch (2), a motor controller (3), a vehicle body controller (4), an instrument controller (5), a finished vehicle wake-up relay (6), a charging wake-up relay (7), a finished vehicle controller (8), a high-voltage to low-voltage controller (9), a high-voltage battery management controller (10), a slow charging controller (11), a fast charging pile (12) and a slow charging pile (13) which are matched with the power management device, one end of the key switch is electrically connected with the battery pack, the other end of the key switch is provided with an Off end, an On end and a Start end, the On end is respectively electrically connected with signal input ends of the motor controller, the vehicle body controller, the instrument controller and the wake-up relay, the signal output ends of the finished vehicle wake-up relay are grounded, the strong electric input end of the finished vehicle wake-up relay is electrically connected with the battery pack, the strong electric output end of the finished vehicle wake-up relay is electrically connected with the high-voltage controller through a second wake-up signal line (15), the wake-up relay is electrically connected with the high-voltage input end of the wake-up relay, the signal output end of the charging awakening relay is grounded, the input end of the high-voltage battery management controller is electrically connected with the quick charging pile through a third awakening signal line (16), the input end of the high-voltage battery management controller is electrically connected with the output end of the slow charging controller through a fifth awakening signal line (18), the input end of the slow charging controller is electrically connected with the slow charging pile through a fourth awakening signal line (17), the Start end is electrically connected with the input end of the whole vehicle controller through a starting signal line (21), and the output end of the whole vehicle controller is electrically connected with the strong electric input end of the charging awakening relay;
The power management device comprises a cooling water pump (19), the cooling water pump is connected with the whole vehicle controller, and the whole vehicle controller is used for judging the whole vehicle state and controlling the cooling water pump to cool the high-voltage-to-low-voltage controller;
the whole car wake-up relay and the charging wake-up relay are both provided with a pull-up resistor (20) for pulling up the level.
2. The power management device with fast and slow charging for a pure electric vehicle according to claim 1, wherein: the motor controller, the vehicle body controller and the instrument controller are electrically connected in parallel, the whole vehicle controller, the high-voltage-to-low-voltage controller, the slow charging controller and the charging awakening relay are electrically connected in parallel, the fast charging pile is electrically connected with the high-voltage battery management controller in series, and the slow charging pile is electrically connected with the slow controller in series.
3. A management method for the power management device of the full-electric vehicle with fast and slow charging as claimed in any one of claims 1-2, characterized in that:
The method comprises the following steps:
S1, when a driver switches a key switch from an Off end to a non-Off end, and a first wake-up signal line is pulled up to a high level, a second wake-up signal line is pulled up to a low level, a third wake-up signal line is pulled down to a low level, a fourth wake-up signal line is pulled down to a low level, and a pure electric vehicle is in a starting running state and enters a power management mode in the starting running state;
S2, when a driver switches a key switch to an Off end, and a first wake-up signal line is pulled down to a low level, a second wake-up signal line is pulled up to a high level, a third wake-up signal line is pulled up to a high level, a fourth wake-up signal line is pulled down to a low level, and a fifth wake-up signal line is pulled down to a low level, the pure electric vehicle is in a fast charging state, and enters a power management mode under the fast charging state;
s3, when the driver switches the key switch to the Off end, and the first wake-up signal line is pulled down to a low level, the second wake-up signal line is pulled up to a high level, the third wake-up signal line is pulled down to a low level, the fourth wake-up signal line is pulled up to a high level, and the pure electric vehicle is in a slow charging state and enters a power management mode in the slow charging state;
s4, when the driver switches the key switch from the non-Off end to the Off end, the first wake-up signal line is pulled down to be at a low level, and the second wake-up signal line is pulled down to be at a low level, so that the pure electric vehicle is in a dormant state.
4. A method of management as claimed in claim 3, wherein: in S1, the power management mode in the start-up running state includes the steps of:
S11, switching a key switch from an Off end to a non-Off end, pulling a first wake-up signal line to a high level, and waking up the motor controller, the vehicle body controller and the instrument controller;
S12, the first wake-up signal line pulls up the level of the second wake-up signal line through the whole vehicle wake-up relay, and wakes up the whole vehicle controller, the high-voltage to low-voltage controller, the slow charge controller and the high-voltage battery management controller;
and S13, the whole vehicle controller judges the state of the starting signal line and executes the starting action of the pure electric logistics vehicle.
5. A method of management as claimed in claim 3, wherein: in S2, entering the power management mode in the fast charge state includes the steps of:
s21, switching a key switch from a non-Off end to an Off end, wherein the first wake-up signal line is pulled to be low level, the motor controller, the vehicle body controller and the instrument controller are not woken up, the whole vehicle wake-up relay does not execute actions, the second wake-up signal line is pulled to be low level, and the whole vehicle controller, the high-voltage to low-voltage controller, the slow charge controller and the high-voltage battery management controller are not woken up;
s22, waking up the high-voltage battery management controller when the quick charge pile is pulled to a high level through the third wake-up signal line;
s23, the high-voltage battery management controller judges the charging requirement of the electric logistics vehicle and executes the charging request of the electric logistics vehicle;
S24, the charging wake-up relay pulls up the level of the second wake-up signal line, wakes up the whole vehicle controller and the high-voltage to low-voltage controller, and the pure electric vehicle starts to charge quickly.
6. A method of management as claimed in claim 3, wherein: in S3, entering the power management mode in the slow charge state includes the steps of:
S31, switching a key switch from a non-Off end to an Off end, wherein the first wake-up signal line is pulled to be low level, the motor controller, the vehicle body controller and the instrument controller are not woken up, the whole vehicle wake-up relay does not execute actions, the second wake-up signal line is pulled to be low level, and the whole vehicle controller, the high-voltage to low-voltage controller, the slow charge controller and the high-voltage battery management controller are not woken up;
s32, when the slow charging pile is pulled to a high level through the fourth wake-up signal line, waking up the slow charging controller;
s33, the slow charge controller pulls high level through the fifth wake-up signal line to wake up the high-voltage battery management controller;
S34, the high-voltage battery management controller judges the charging requirement of the electric logistics vehicle and executes the charging request of the electric logistics vehicle;
And S35, the charging wake-up relay pulls up the level of the second wake-up signal line, wakes up the whole vehicle controller and the high-voltage to low-voltage controller, and starts slow charging.
7. A method of management as claimed in claim 3, wherein: in S4, the key switch is switched from a non-Off end to an Off end, the first wake-up signal line is pulled to be low level, the motor controller, the vehicle body controller and the instrument controller are not woken up, the whole vehicle wake-up relay does not execute action, the second wake-up signal line is pulled to be low level, the whole vehicle controller, the high-voltage to low-voltage controller, the slow charge controller and the high-voltage battery management controller are not woken up, and the pure electric vehicle starts to sleep.
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| CN111731124A (en) * | 2020-05-25 | 2020-10-02 | 东风柳州汽车有限公司 | Mobile charging vehicle and charging method thereof |
| CN112224044A (en) * | 2020-10-27 | 2021-01-15 | 上海伊控动力***有限公司 | Power management device and power management method for logistics vehicle with slow charging and range extending functions |
| CN112224045A (en) * | 2020-10-27 | 2021-01-15 | 上海伊控动力***有限公司 | Power management device and power management method for logistics vehicle with fast and slow charging and range extending functions |
| CN114683869B (en) * | 2020-12-31 | 2023-10-20 | 观致汽车有限公司 | Electric automobile, mode switching method and device thereof, and storage medium |
| CN113602145B (en) * | 2021-08-17 | 2023-08-11 | 上海伊控动力***有限公司 | Power supply management device and management method for supplementing power to storage battery of electric logistics vehicle |
| CN113581005B (en) * | 2021-08-24 | 2024-05-31 | 上海伊控动力***有限公司 | Processing device and processing method for preventing power feeding of low-voltage battery of electric logistics vehicle |
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