CN112224045A - Power management device and power management method for logistics vehicle with fast and slow charging and range extending functions - Google Patents
Power management device and power management method for logistics vehicle with fast and slow charging and range extending functions Download PDFInfo
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- 238000007726 management method Methods 0.000 title claims description 124
- 230000009471 action Effects 0.000 claims description 23
- 239000000498 cooling water Substances 0.000 claims description 10
- 230000002618 waking effect Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 230000005059 dormancy Effects 0.000 abstract 1
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- 230000005611 electricity Effects 0.000 description 2
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- 238000012986 modification Methods 0.000 description 2
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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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- 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
- B60L53/60—Monitoring or controlling charging stations
- B60L53/66—Data transfer between charging stations and 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
- Y02T90/12—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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- 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
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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- Engineering & Computer Science (AREA)
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- Electric Propulsion And Braking For Vehicles (AREA)
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Abstract
The invention discloses a power management device with a fast and slow charging and range extending function for a logistics vehicle, which comprises a battery pack, a key switch, a charger controller, an engine controller, a motor controller, a vehicle body controller, an instrument controller, a vehicle control unit, 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, wherein the fast charging pile and the slow charging pile 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 a pure electric logistics vehicle. The invention realizes the quick charging and the slow charging of the pure electric logistics vehicle, keeps the technical advantages of the original power management device, improves the charging efficiency of the pure electric logistics vehicle, prolongs the service life of a high-voltage battery and the service time of the pure electric logistics vehicle, realizes overload protection and short-circuit protection, and avoids the damage of a charging pile and the vehicle body power management device.
Description
Technical Field
The invention relates to the technical field of electric automobile charging, in particular to a power management device with a fast and slow charging and range extending type logistics automobile and a power management method applied to the power management device.
Background
Because the pure electric logistics vehicles need to travel more mileage every day, the pure electric logistics vehicles are basically equipped with a quick charging function. The quick charging function can realize that more electric quantity is charged into the high-voltage battery in a shorter time.
At present, the pure electric logistics vehicles are basically configured with fast and slow charging functions, but the service life of a high-voltage battery and the service time and frequency of the pure electric logistics vehicles are considered, and efficient management needs to be carried out on power output and charging of the pure electric vehicles.
Most pure electric vehicles all lack the high-efficient management in the aspect of the power to battery charging outfit and engine at present to when pure electric motor class car charges through fast, the slow charging stake, because long time or frequent plug, lead to induced-current or voltage load transient increase, also exist because of power management device's ageing or performance instability, lead to the emergence of the condition such as circuit short circuit, make power management device paralyse extremely easily, power device damages, cause to fill electric pile and automobile body and take place the possibility of conflagration or battery explosion.
Disclosure of Invention
The invention provides a power management device and a power management method for a logistics vehicle with fast and slow charging and range extending functions, and the power management device and the power management method are used for realizing fast charging and slow charging of a pure electric logistics vehicle, keeping the technical advantages of the original power management device, improving the charging efficiency of the pure electric logistics vehicle, prolonging the service life of a high-voltage battery and the service time of the pure electric logistics vehicle, realizing overload protection and short-circuit protection and avoiding damage of a charging pile and a vehicle body power management device.
In order to solve the technical problems, the invention adopts the technical scheme that:
the utility model provides a commodity circulation car power management device that increases form soon charges, power management device includes group battery, key switch, charger controller, engine controller, machine controller, automobile body controller, appearance controller, whole car awaken relay, charge awaken relay, whole car controller, high pressure change low voltage controller, high voltage battery management controller, On-vehicle controller that charges slowly, overload protection circuit breaker, short-circuit protection circuit breaker, with the supporting quick charging pile and the slow charging pile who uses of power management device, one end of key switch is connected with the group battery electricity, the other end of key switch is equipped with Off end, On end and Start end, On end through first awaken signal line respectively with charger controller, engine controller, machine controller, automobile body controller and the signal input part electricity of appearance controller, the signal output end of the whole vehicle awakening relay is grounded, the strong current input end of the whole vehicle awakening relay is electrically connected with the battery pack, the strong current output end of the whole vehicle awakening relay is electrically connected with the whole vehicle controller, the high-voltage to low-voltage controller, the input end of the vehicle-mounted slow charging controller, the input end of the high-voltage battery management controller and the strong current input end of the charging awakening relay through a second awakening signal line respectively, the strong current output end of the charging awakening relay is electrically connected with the strong current input end of the whole vehicle awakening relay, the signal input end of the charging awakening relay is connected with the output end of the high-voltage battery management controller, the signal output end of the charging awakening relay is grounded, and the input end of the high-voltage battery management controller is, the input end of the high-voltage battery management controller is electrically connected with the output end of the vehicle-mounted slow charging controller through a fifth wake-up signal line, the input end of the vehicle-mounted 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 vehicle control unit through a starting signal line, and the output end of the vehicle control unit is electrically connected with the strong current input end of the charging wake-up relay; the overload protection circuit breaker is electrically connected with the third wake-up signal wire and the fourth wake-up signal wire in series and used for triggering disconnection action to cut off a power supply in overload; and the short-circuit protection circuit breaker is electrically connected with the third wake-up signal wire and the fourth wake-up signal wire in series and used for triggering the disconnection action to cut off the power supply by a short circuit.
In order to solve the technical problem, the invention adopts the further technical scheme that:
the power management device comprises a cooling water pump, the cooling water pump is connected with the vehicle control unit, and the vehicle control unit is used for judging the vehicle state and controlling the cooling water pump to cool the high-voltage to low-voltage controller.
Furthermore, the whole vehicle wake-up relay and the charging wake-up relay are both provided with pull-up resistors for pulling up the level.
The vehicle-mounted slow charging system comprises a charger controller, an engine controller, a motor controller, a vehicle body controller and an instrument controller, wherein the charger controller, the engine controller, the motor controller, the vehicle body controller and the instrument controller are all electrically connected in parallel, the vehicle controller, the high-voltage-to-low-voltage controller, the vehicle-mounted slow charging controller and a charging wake-up relay are all 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 power supply management method for the logistics vehicle with the fast and slow charging range-extending function, which comprises the following steps:
s1, when the driver switches the key switch from the Off end to the non-Off end, and the first wake-up signal line is pulled up to high level, the second wake-up signal line is pulled up to high level, the third wake-up signal line is pulled down to low level, the fourth wake-up signal line is pulled down to low level, and the fifth wake-up signal line is pulled down to low level, the pure electric motorcycle is in a starting driving state, and enters a power management mode in the starting driving state;
s2, 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 up to a high level, the fourth wake-up signal line is pulled down to a low level, and the fifth wake-up signal line is pulled down to a low level, the pure electric logistic vehicle is in a fast charging state, and enters a power management mode in 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 fifth wake-up signal line is pulled up to a high level, the pure electric logistic vehicle is in a slow charging state, and enters a power management mode in the slow charging state;
and S4, when the driver switches the key switch from the Off end to the Off end, the first awakening signal line is pulled down in level, the second awakening signal line is pulled down in level, and the pure electric animal flow vehicle is in a dormant state.
In order to solve the technical problem, the invention adopts the further technical scheme that:
further, at 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, and pulling a first wake-up signal line to a high level to wake up the charger controller, the engine controller, the motor controller, the vehicle body controller and the instrument controller;
s12, the first awakening signal line pulls up the level of the second awakening signal line through the whole vehicle awakening relay to awaken the whole vehicle controller, the high-voltage-to-low-voltage controller, the vehicle-mounted slow charging controller and the high-voltage battery management controller;
and S13, the vehicle control unit judges the state of the starting signal line and executes the starting action of the pure electric logistics vehicle.
Further, in S2, the entering of the power management mode in the fast charge state includes the steps of:
s21, a key switch is switched from a non-Off end to an Off end, the first awakening signal line is pulled down to a low level, the charger controller, the engine controller, the motor controller, the vehicle body controller and the instrument controller are not awakened, the vehicle awakening relay does not perform actions, the second awakening signal line is pulled down to a low level, and the vehicle controller, the high-voltage-to-low-voltage controller, the vehicle-mounted slow charging controller and the high-voltage battery management controller are not awakened;
s22, when the rapid charging pile is pulled to be high through the third wake-up signal line, waking up the high-voltage battery management controller;
s23, 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 S24, the charging awakening relay pulls up the level of the second awakening signal line to awaken the vehicle control unit and the high-voltage-to-low-voltage controller, and the pure electric vehicle starts to be charged quickly.
Further, in S3, the entering of the power management mode in the slow charging state includes the following steps:
s31, a key switch is switched from a non-Off end to an Off end, the first awakening signal line is pulled down to a low level, the charger controller, the engine controller, the motor controller, the vehicle body controller and the instrument controller are not awakened, the vehicle awakening relay does not perform actions, the second awakening signal line is pulled down to a low level, and the vehicle controller, the high-voltage-to-low-voltage controller, the vehicle-mounted slow charging controller and the high-voltage battery management controller are not awakened;
s32, when the slow charging pile is pulled to be high through the fourth wake-up signal line, waking up the vehicle-mounted slow charging controller;
s33, the vehicle-mounted slow charging 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 pure electric logistics vehicle and executes the charging request of the pure electric logistics vehicle;
and S35, the charging wake-up relay pulls up the level of the second wake-up signal line to wake up the whole vehicle controller and the high-voltage-to-low-voltage controller to start 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 down to a low level, the charger controller, the engine controller, the motor controller, the vehicle body controller and the instrument controller are not waken up, the vehicle wake-up relay does not perform any action, the second wake-up signal line is pulled down to a low level, the vehicle controller, the high-voltage to low-voltage controller, the vehicle-mounted slow-charge controller and the high-voltage battery management controller are not wakened up, and the pure electric vehicle starts to sleep.
The invention has the beneficial effects that:
firstly, a whole vehicle awakening relay is added between a key switch and controllers (such as a whole vehicle controller, a high-voltage-to-low-voltage controller, a vehicle-mounted slow charging controller and a high-voltage battery management controller) related to fast and slow charging, when the pure electric logistics vehicle is charged fast or slowly, other controllers are isolated, and the other controllers (such as the charger controller, the engine controller, the motor controller, the vehicle body controller and the instrument controller) are prevented from being awakened;
secondly, a charging wake-up relay is added between a high-voltage battery management controller and a controller related to quick charging (such as a vehicle control unit and a high-voltage-to-low-voltage controller), a charging wake-up relay is added between a controller related to quick charging (such as the vehicle control unit and the high-voltage-to-low-voltage controller), and a charging wake-up relay is added between the high-voltage battery management controller and a controller related to slow charging (such as the vehicle control unit, the high-voltage-to-low-voltage controller and a vehicle-mounted slow charging controller), so that the functions of quick and slow charging are supported, and the switching efficiency of slow charging and quick charging is realized;
thirdly, on the basis of the existing power management device with the quick charging function, a small amount of modification is performed, range extenders (such as a charger controller and an engine controller) are added, the states of a charging pile and an engine can be monitored in real time, an overload protection circuit breaker and a short-circuit protection circuit breaker are added between the quick charging pile and a high-voltage battery management controller and between the slow charging pile and a vehicle-mounted slow charging controller, and when current overload or line short circuit occurs in the charging process, a disconnecting action can be triggered in time to cut off a power supply, so that the charging pile and electric vehicle power equipment are protected;
the power management device supports the functions of quick and slow charging, and can keep the technical advantages of the original power management device: the controller related to quick and slow charging is only awakened to work, so that the electric loss of the low-voltage end of the pure electric logistics vehicle is reduced, the charging efficiency of the pure electric logistics vehicle is improved, the service life of the high-voltage battery is prolonged, and the service life of the pure electric logistics vehicle is prolonged.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given 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 of a logistics vehicle with fast and slow charging and range extending functions according to the present invention;
FIG. 2 is a schematic flow chart of a power management method for a logistics vehicle with fast and slow recharging and range extending functions according to the present invention;
FIG. 3 is a signal state table of a wake-up signal line during a key switch switching process of the pure electric logistic vehicle according to the present invention;
fig. 4 is a signal state table of the wake-up signal line in the fast charging process of the pure electric logistic vehicle according to the present invention;
FIG. 5 is a signal state table of the wake-up signal line during slow charging according to the present invention;
the parts in the drawings are marked as follows:
the device comprises a battery pack 1, a key switch 2, a charger controller 3, an engine controller 4, a motor controller 5, a vehicle body controller 6, an instrument controller 7, a whole vehicle wake-up relay 8, a charge wake-up relay 9, a whole vehicle controller 10, a high-voltage to low-voltage controller 11, a high-voltage battery management controller 12, a vehicle-mounted slow charge controller 13, an overload protection circuit breaker 14, a short-circuit protection circuit breaker 15, a fast charge pile 16, a slow charge pile 17, a first wake-up signal line 18, a second wake-up signal line 19, a third wake-up signal line 20, a fifth wake-up signal line 21, a fourth wake-up signal line 22, a starting signal line 23, a cooling water pump 24 and a pull-up resistor 25.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and the present invention will be described in detail with reference to the accompanying drawings. The invention may be embodied in other different forms, i.e. it is capable of various modifications and changes without departing from the scope of the invention as disclosed.
Example 1
A power management device with a fast and slow charging and range extending type logistics vehicle is shown in figure 1 and comprises a battery pack 1, a key switch 2, a charging controller 3, an engine controller 4, a motor controller 5, a vehicle body controller 6, an instrument controller 7, a vehicle wake-up relay 8, a charging wake-up relay 9, a vehicle controller 10, a high-voltage to low-voltage controller 11, a high-voltage battery management controller 12, a vehicle-mounted slow charging controller 13, an overload protection circuit breaker 14, a short-circuit protection circuit breaker 15, a fast charging pile 16 and a slow charging pile 17 which are matched with the power management device for use, wherein 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, and the On end is respectively connected with the charging controller and the engine controller through a first wake-up signal line 18, The signal input ends of the motor controller, the vehicle body controller and the instrument controller are electrically connected, the signal output end of the vehicle wake-up relay is grounded, the strong current input end of the vehicle wake-up relay is electrically connected with the battery pack, the strong current output end of the vehicle wake-up relay is respectively and electrically connected with the vehicle controller, the high-voltage to low-voltage controller, the input end of the vehicle-mounted slow charging controller, the input end of the high-voltage battery management controller and the strong current input end of the charging wake-up relay through a second wake-up signal wire 19, the strong current output end of the charging wake-up relay is electrically connected with the strong current input end of the vehicle wake-up relay, the signal input end of the charging wake-up relay is connected with the output end of the high-voltage battery management controller, the input end of the high-voltage battery management controller is electrically connected with the fast charging pile through a third wake-up signal line 20, the input end of the high-voltage battery management controller is electrically connected with the output end of the vehicle-mounted slow charging controller through a fifth wake-up signal line 21, the input end of the vehicle-mounted slow charging controller is electrically connected with the slow charging pile through a fourth wake-up signal line 22, the Start end is electrically connected with the input end of the whole vehicle controller through a Start signal line 23, 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 overload protection circuit breaker is electrically connected with the third wake-up signal wire and the fourth wake-up signal wire in series and used for triggering disconnection action to cut off a power supply in overload; and the short-circuit protection circuit breaker is electrically connected with the third wake-up signal wire and the fourth wake-up signal wire in series and used for triggering the disconnection action to cut off the power supply by a short circuit.
The power management device comprises a cooling water pump 24, the cooling water pump is connected with the vehicle control unit, and the vehicle control unit is used for judging the vehicle state and controlling the cooling water pump to cool the high-voltage-to-low-voltage controller.
The whole vehicle wake-up relay and the charging wake-up relay are both provided with a pull-up resistor 25 for pulling up the electrical level.
The vehicle-mounted low-voltage charging system comprises a charger controller, an engine controller, a motor controller, a vehicle body controller and an instrument controller which are all connected in parallel and electrically, wherein the vehicle controller, the high-voltage-to-low-voltage controller, the vehicle-mounted low-voltage charging controller and a charging wake-up relay are all connected in parallel and electrically, a rapid charging pile is connected with a high-voltage battery management controller in series and a slow charging pile is connected with a slow controller in series and electrically.
Example 2
A power management method for a logistics vehicle with fast and slow recharging and range extending functions, as shown in fig. 2 to 5, includes the following steps:
s1, when the driver switches the key switch from the Off end to the non-Off end, and the first wake-up signal line is pulled up to high level, the second wake-up signal line is pulled up to high level, the third wake-up signal line is pulled down to low level, the fourth wake-up signal line is pulled down to low level, and the fifth wake-up signal line is pulled down to low level, the pure electric motorcycle is in a starting driving state, and enters a power management mode in the starting driving state;
s2, 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 up to a high level, the fourth wake-up signal line is pulled down to a low level, and the fifth wake-up signal line is pulled down to a low level, the pure electric logistic vehicle is in a fast charging state, and enters a power management mode in 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 fifth wake-up signal line is pulled up to a high level, the pure electric logistic vehicle is in a slow charging state, and enters a power management mode in the slow charging state;
and S4, when the driver switches the key switch from the Off end to the Off end, the first awakening signal line is pulled down in level, the second awakening signal line is pulled down in level, and the pure electric animal flow vehicle is in a dormant state.
At 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, and pulling a first wake-up signal line to a high level to wake up the charger controller, the engine controller, the motor controller, the vehicle body controller and the instrument controller;
s12, the first awakening signal line pulls up the level of the second awakening signal line through the whole vehicle awakening relay to awaken the whole vehicle controller, the high-voltage-to-low-voltage controller, the vehicle-mounted slow charging controller and the high-voltage battery management controller;
and S13, the vehicle control unit judges the state of the starting signal line and executes the starting action of the pure electric logistics vehicle.
At S2, entering the power management mode in the fast charge state includes the steps of:
s21, a key switch is switched from a non-Off end to an Off end, the first awakening signal line is pulled down to a low level, the charger controller, the engine controller, the motor controller, the vehicle body controller and the instrument controller are not awakened, the vehicle awakening relay does not perform actions, the second awakening signal line is pulled down to a low level, and the vehicle controller, the high-voltage-to-low-voltage controller, the vehicle-mounted slow charging controller and the high-voltage battery management controller are not awakened;
s22, when the rapid charging pile is pulled to be high through the third wake-up signal line, waking up the high-voltage battery management controller;
s23, 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 S24, the charging awakening relay pulls up the level of the second awakening signal line to awaken the vehicle control unit and the high-voltage-to-low-voltage controller, and the pure electric vehicle starts to be charged quickly.
At S3, entering the power management mode in the slow charge state includes the steps of:
s31, a key switch is switched from a non-Off end to an Off end, the first awakening signal line is pulled down to a low level, the charger controller, the engine controller, the motor controller, the vehicle body controller and the instrument controller are not awakened, the vehicle awakening relay does not perform actions, the second awakening signal line is pulled down to a low level, and the vehicle controller, the high-voltage-to-low-voltage controller, the vehicle-mounted slow charging controller and the high-voltage battery management controller are not awakened;
s32, when the slow charging pile is pulled to be high through the fourth wake-up signal line, waking up the vehicle-mounted slow charging controller;
s33, the vehicle-mounted slow charging 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 pure electric logistics vehicle and executes the charging request of the pure electric logistics vehicle;
and S35, the charging wake-up relay pulls up the level of the second wake-up signal line to wake up the whole vehicle controller and the high-voltage-to-low-voltage controller to start slow charging.
In S4, a key switch is switched from a non-Off end to an Off end, the first awakening signal line is pulled down to a low level, the charger controller, the engine controller, the motor controller, the vehicle body controller and the instrument controller are not awakened, the whole vehicle awakening relay does not perform actions, the second awakening signal line is pulled down to a low level, the whole vehicle controller, the high-voltage-to-low-voltage controller, the vehicle-mounted slow-charge controller and the high-voltage battery management controller are not awakened, and the pure electric vehicle starts to sleep.
The working process and working principle of the invention are as follows:
starting a power management mode in a driving state:
firstly, a key switch is switched from an Off end to a non-Off end, the first wake-up signal line is pulled up to a high level, and the charger controller, the engine controller, the motor controller, the vehicle body controller and the instrument controller are awakened;
then, the first awakening signal line pulls up the level of the second awakening signal line through the whole vehicle awakening relay to awaken the whole vehicle controller, the high-voltage-to-low-voltage controller, the vehicle-mounted slow charging controller and the high-voltage battery management controller;
and finally, the vehicle control unit 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 down to a low level, the charger controller, the engine controller, the motor controller, the vehicle body controller and the instrument controller are not wakened up, the vehicle wake-up relay does not perform actions, the second wake-up signal line is pulled down to a low level, and the vehicle controller, the high-voltage to low-voltage controller, the vehicle-mounted slow charging controller and the high-voltage battery management controller are not wakened up;
then, when the rapid charging pile is pulled to be high through the third wake-up signal line, the high-voltage battery management controller is awakened;
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 awakening relay pulls up the level of the second awakening signal line to awaken the vehicle control unit and the high-voltage-to-low-voltage controller, so that the pure electric vehicle starts to be charged quickly.
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 down to a low level, the charger controller, the engine controller, the motor controller, the vehicle body controller and the instrument controller are not wakened up, the vehicle wake-up relay does not perform actions, the second wake-up signal line is pulled down to a low level, and the vehicle controller, the high-voltage to low-voltage controller, the vehicle-mounted slow charging controller and the high-voltage battery management controller are not wakened up;
then, when the low-speed charging pile is pulled to be high through the fourth wake-up signal line, the vehicle-mounted slow charging controller is woken up;
then, the vehicle-mounted slow charging 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 awakening relay pulls up the level of the second awakening signal line to awaken the whole vehicle controller and the high-voltage-to-low-voltage controller to start slow charging.
Power management mode in sleep state:
the key switch is switched to an Off end from a non-Off end, the first awakening signal line is pulled down to a low level, the charger controller, the engine controller, the motor controller, the vehicle body controller and the instrument controller are not awakened, the whole vehicle awakening relay does not perform actions, the second awakening signal line is pulled down to a low level, the whole vehicle controller, the high-voltage-to-low-voltage controller, the vehicle-mounted slow-charging controller and the high-voltage battery management controller are not awakened, and the pure electric vehicle starts to sleep.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures made by using the contents of the specification and the drawings, or other related technical fields, are encompassed by the present invention.
Claims (9)
1. The utility model provides a fast slow-charging increases form commodity circulation car power management device which characterized in that: the power management device comprises a battery pack (1), a key switch (2), a charger controller (3), an engine controller (4), a motor controller (5), a vehicle body controller (6), an instrument controller (7), a whole vehicle awakening relay (8), a charging awakening relay (9), a whole vehicle controller (10), a high-voltage-to-low-voltage controller (11), a high-voltage battery management controller (12), a vehicle-mounted slow charging controller (13), an overload protection circuit breaker (14), a short-circuit protection circuit breaker (15), a fast charging pile (16) and a slow charging pile (17) which are matched with the power management device for use, 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 connected with the charger controller through a first awakening signal line (18), The signal input ends of the engine controller, the motor controller, the vehicle body controller and the instrument controller are electrically connected, the signal output end of the vehicle wake-up relay is grounded, the strong current input end of the vehicle wake-up relay is electrically connected with the battery pack, the strong current output end of the vehicle wake-up relay is respectively and electrically connected with the vehicle controller, the high-voltage to low-voltage controller, the input end of the vehicle slow-charge controller, the input end of the high-voltage battery management controller and the strong current input end of the charge wake-up relay through a second wake-up signal line (19), the strong current output end of the charge wake-up relay is electrically connected with the strong current input end of the vehicle wake-up relay, the signal input end of the charge wake-up relay is connected with the output end of the high-voltage battery management controller, and the signal, the input end of the high-voltage battery management controller is electrically connected with the fast charging pile through a third wake-up signal line (20), the input end of the high-voltage battery management controller is electrically connected with the output end of the vehicle-mounted slow charging controller through a fifth wake-up signal line (21), the input end of the vehicle-mounted slow charging controller is electrically connected with the slow charging pile through a fourth wake-up signal line (22), the Start end is electrically connected with the input end of the whole vehicle controller through a starting signal line (23), 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 overload protection circuit breaker is electrically connected with the third wake-up signal wire and the fourth wake-up signal wire in series and used for triggering disconnection action to cut off a power supply in overload; and the short-circuit protection circuit breaker is electrically connected with the third wake-up signal wire and the fourth wake-up signal wire in series and used for triggering the disconnection action to cut off the power supply by a short circuit.
2. The power management device of the logistics vehicle with fast and slow charging and range extending functions as claimed in claim 1, wherein: the power management device comprises a cooling water pump (24), the cooling water pump is connected with the vehicle control unit, and the vehicle control unit is used for judging the vehicle state and controlling the cooling water pump to cool the high-voltage-to-low-voltage controller.
3. The power management device of the logistics vehicle with fast and slow charging and range extending functions as claimed in claim 1, wherein: the whole vehicle awakening relay and the charging awakening relay are both provided with pull-up resistors (25) for pulling up the electrical level.
4. The power management device of the logistics vehicle with fast and slow charging and range extending functions as claimed in claim 1, wherein: the vehicle-mounted low-voltage charging system comprises a charger controller, an engine controller, a motor controller, a vehicle body controller and an instrument controller which are all connected in parallel and electrically, wherein the vehicle controller, the high-voltage-to-low-voltage controller, the vehicle-mounted low-voltage charging controller and a charging wake-up relay are all connected in parallel and electrically, a rapid charging pile is connected with a high-voltage battery management controller in series and a slow charging pile is connected with a slow controller in series and electrically.
5. A power management method for logistics vehicles with fast and slow recharging functions as claimed in any one of claims 1 to 4, characterized in that:
the method comprises the following steps:
s1, when the driver switches the key switch from the Off end to the non-Off end, and the first wake-up signal line is pulled up to high level, the second wake-up signal line is pulled up to high level, the third wake-up signal line is pulled down to low level, the fourth wake-up signal line is pulled down to low level, and the fifth wake-up signal line is pulled down to low level, the pure electric motorcycle is in a starting driving state, and enters a power management mode in the starting driving state;
s2, 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 up to a high level, the fourth wake-up signal line is pulled down to a low level, and the fifth wake-up signal line is pulled down to a low level, the pure electric logistic vehicle is in a fast charging state, and enters a power management mode in 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 fifth wake-up signal line is pulled up to a high level, the pure electric logistic vehicle is in a slow charging state, and enters a power management mode in the slow charging state;
and S4, when the driver switches the key switch from the Off end to the Off end, the first awakening signal line is pulled down in level, the second awakening signal line is pulled down in level, and the pure electric animal flow vehicle is in a dormant state.
6. The power management method for the logistics vehicle with the fast and slow charging function as claimed in claim 5, wherein the power management method comprises the following steps: at 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, and pulling a first wake-up signal line to a high level to wake up the charger controller, the engine controller, the motor controller, the vehicle body controller and the instrument controller;
s12, the first awakening signal line pulls up the level of the second awakening signal line through the whole vehicle awakening relay to awaken the whole vehicle controller, the high-voltage-to-low-voltage controller, the vehicle-mounted slow charging controller and the high-voltage battery management controller;
and S13, the vehicle control unit judges the state of the starting signal line and executes the starting action of the pure electric logistics vehicle.
7. The power management method for the logistics vehicle with the fast and slow charging function as claimed in claim 5, wherein the power management method comprises the following steps: at S2, entering the power management mode in the fast charge state includes the steps of:
s21, a key switch is switched from a non-Off end to an Off end, the first awakening signal line is pulled down to a low level, the charger controller, the engine controller, the motor controller, the vehicle body controller and the instrument controller are not awakened, the vehicle awakening relay does not perform actions, the second awakening signal line is pulled down to a low level, and the vehicle controller, the high-voltage-to-low-voltage controller, the vehicle-mounted slow charging controller and the high-voltage battery management controller are not awakened;
s22, when the rapid charging pile is pulled to be high through the third wake-up signal line, waking up the high-voltage battery management controller;
s23, 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 S24, the charging awakening relay pulls up the level of the second awakening signal line to awaken the vehicle control unit and the high-voltage-to-low-voltage controller, and the pure electric vehicle starts to be charged quickly.
8. The power management method for the logistics vehicle with the fast and slow charging function as claimed in claim 5, wherein the power management method comprises the following steps: at S3, entering the power management mode in the slow charge state includes the steps of:
s31, a key switch is switched from a non-Off end to an Off end, the first awakening signal line is pulled down to a low level, the charger controller, the engine controller, the motor controller, the vehicle body controller and the instrument controller are not awakened, the vehicle awakening relay does not perform actions, the second awakening signal line is pulled down to a low level, and the vehicle controller, the high-voltage-to-low-voltage controller, the vehicle-mounted slow charging controller and the high-voltage battery management controller are not awakened;
s32, when the slow charging pile is pulled to be high through the fourth wake-up signal line, waking up the vehicle-mounted slow charging controller;
s33, the vehicle-mounted slow charging 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 pure electric logistics vehicle and executes the charging request of the pure electric logistics vehicle;
and S35, the charging wake-up relay pulls up the level of the second wake-up signal line to wake up the whole vehicle controller and the high-voltage-to-low-voltage controller to start slow charging.
9. The power management method for the logistics vehicle with the fast and slow charging function as claimed in claim 5, wherein the power management method comprises the following steps: in S4, a key switch is switched from a non-Off end to an Off end, the first awakening signal line is pulled down to a low level, the charger controller, the engine controller, the motor controller, the vehicle body controller and the instrument controller are not awakened, the whole vehicle awakening relay does not perform actions, the second awakening signal line is pulled down to a low level, the whole vehicle controller, the high-voltage-to-low-voltage controller, the vehicle-mounted slow-charge controller and the high-voltage battery management controller are not awakened, and the pure electric vehicle starts to sleep.
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| CN202011168027.3A CN112224045A (en) | 2020-10-27 | 2020-10-27 | Power management device and power management method for logistics vehicle with fast and slow charging and range extending functions |
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| CN202011168027.3A CN112224045A (en) | 2020-10-27 | 2020-10-27 | Power management device and power management method for logistics vehicle with fast and slow charging and range extending functions |
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| CN107415741A (en) * | 2017-08-04 | 2017-12-01 | 北京新能源汽车股份有限公司 | Control method and device for working state of vehicle-mounted charger controller and electric vehicle |
| CN110539710A (en) * | 2019-09-05 | 2019-12-06 | 上海伊控动力系统有限公司 | power management device and management method for pure electric logistics vehicle with fast and slow charging |
| CN214267367U (en) * | 2020-10-27 | 2021-09-24 | 上海伊控动力系统有限公司 | Power management device with fast and slow charging and range increasing functions for logistics vehicle |
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2020
- 2020-10-27 CN CN202011168027.3A patent/CN112224045A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107415741A (en) * | 2017-08-04 | 2017-12-01 | 北京新能源汽车股份有限公司 | Control method and device for working state of vehicle-mounted charger controller and electric vehicle |
| CN110539710A (en) * | 2019-09-05 | 2019-12-06 | 上海伊控动力系统有限公司 | power management device and management method for pure electric logistics vehicle with fast and slow charging |
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