CN112271770B - Vehicle emergency starting device and current automatic switching method - Google Patents

Vehicle emergency starting device and current automatic switching method Download PDF

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Publication number
CN112271770B
CN112271770B CN202011098508.1A CN202011098508A CN112271770B CN 112271770 B CN112271770 B CN 112271770B CN 202011098508 A CN202011098508 A CN 202011098508A CN 112271770 B CN112271770 B CN 112271770B
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China
Prior art keywords
module
super capacitor
timing
vehicle
starting device
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CN112271770A (en
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蔡炼
蔡涛
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Shenzhen Kalaifu Technology Co ltd
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Shenzhen Kalaifu Technology Co ltd
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • H02J7/0045—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction concerning the insertion or the connection of the batteries
    • 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
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/53—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells in combination with an external power supply, e.g. from overhead contact lines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • 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
    • B60L53/10—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 characterised by the energy transfer between the charging station and the vehicle
    • B60L53/14—Conductive energy transfer
    • B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • 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

Abstract

The invention discloses a vehicle emergency starting device and a current automatic switching method, and the technical scheme of the invention has the beneficial effects that: according to the technical scheme, the battery is used for storing a large amount of electric energy for a long time, so that the super capacitor in the emergency starting device can be charged by using the electric energy in the battery under the condition that an external power supply does not exist for charging or the super capacitor is not charged for a long time; and an output control module is additionally arranged to control the battery and the super capacitor to charge the vehicle for starting, so that the flexibility of the vehicle emergency starting device is improved, the normal starting of the vehicle is ensured, the charging frequency of the vehicle emergency starting device is obviously reduced, and the practicability of the emergency starting device is improved.

Description

Vehicle emergency starting device and current automatic switching method
Technical Field
The invention relates to the technical field of vehicle safety, in particular to a vehicle emergency starting device and an automatic current switching method.
Background
At present, an emergency starting power supply consisting of a super capacitor needs to be charged before being used, a vehicle can be started after the power supply is charged to a certain energy, and if the vehicle is located in the field or the storage battery of the vehicle is completely damaged, and the like, no power supply can charge the super capacitor, so that the emergency starting power supply is similar to a nominal power supply; even if the emergency starting power supply composed of the super capacitor is fully charged, the electric energy is gradually lost due to self-discharge of the super capacitor, so that the super capacitor stored for a period of time cannot provide enough electric energy for starting the vehicle.
In the prior art, only the super capacitor is used for supplying power for starting the vehicle in the vehicle emergency system, and if a driver does not start the vehicle in a short time, the electric energy of the super capacitor is consumed by a vehicle circuit, so that the vehicle cannot be started by the electric energy provided by the super capacitor.
Disclosure of Invention
According to the problems in the prior art, the vehicle emergency starting device and the current automatic switching method are provided, and the purpose is to reduce the charging frequency of the vehicle emergency starting device, use a battery and a super capacitor to supply power for starting the vehicle, ensure the normal starting of the vehicle and increase the flexibility of the vehicle emergency starting device.
The technical scheme specifically comprises the following steps:
a vehicle emergency starting device connected to a vehicle by an electrical clamp, comprising:
the super capacitor module comprises a super capacitor, and when the vehicle emergency starting device is started and connected to the vehicle, electric energy is provided for starting the vehicle through the super capacitor;
the mode control module is connected to the super capacitor module and used for judging the charging amount of the super capacitor when the vehicle emergency starting device is started, and switching the vehicle emergency starting device between a preset first mode and a preset second mode according to the charging amount of the super capacitor;
the first mode is used for indicating that the super capacitor is in an unfilled state;
the second mode is used for expressing that the super capacitor is in a fully charged state;
the battery module is respectively connected to the super capacitor module and the mode control module and comprises a storage battery, and when the vehicle emergency starting device is started and is in the first mode, the super capacitor is charged through the storage battery;
when the vehicle emergency starting device is started and is in the second mode, and meanwhile the vehicle emergency starting device is connected with the vehicle through an electric clamp, the vehicle emergency starting device supplies power for starting the vehicle;
the output control module is connected to the super capacitor module and the battery module, the super capacitor module and the battery module are connected to a high-current connector through the output control module, the high-current connector is connected to the electric clamp, and the output control module is used for controlling the electric energy output of the super capacitor module and the battery module through the closing or the opening of a switch.
Preferably, the super capacitor module includes:
the balancing unit is connected to the super capacitor and used for performing voltage balancing management on the super capacitor so as to prevent the super capacitor from being damaged due to overhigh voltage;
and the first charging management unit is connected to the super capacitor and used for boosting or reducing the input voltage of the super capacitor so as to enable the input voltage to be in a constant voltage and constant current state.
Preferably, the mode control module includes:
the monitoring unit is connected to the super capacitor module and used for monitoring the real-time electric quantity of the super capacitor;
the judging unit is connected to the super capacitor module and the monitoring unit and prestores an electric quantity threshold of the super capacitor;
when the real-time electric quantity does not reach the electric quantity threshold value, the judging unit switches the vehicle emergency starting device to the first mode;
and when the real-time electric quantity reaches the electric quantity threshold value, the judging unit switches the vehicle emergency starting device to the second mode.
Preferably, the battery module includes:
the battery protection unit is connected between the storage battery and the super capacitor module and used for protecting the storage battery so as to prevent the storage battery from being damaged;
and the second charging management unit is connected to the battery protection unit and used for boosting or reducing the input voltage of the storage battery so as to enable the input voltage to be in a constant voltage and constant current state.
Preferably, the output control module includes:
the first switch is arranged between the super capacitor module and the high-current connector and used for controlling the super capacitor to supply power to the vehicle;
the second switch is arranged between the battery module and the high-current connector and used for controlling the storage battery to supply power to the vehicle, and the initial state of the second switch is closed;
the acquisition unit is connected to the high-current connector and used for acquiring real-time output circuit parameters of the vehicle emergency starting device;
the detection unit is connected to the acquisition unit, is pre-stored with a standard output circuit parameter threshold, and is used for detecting the real-time output circuit parameter according to the standard output circuit parameter threshold and outputting a detection result to a control unit;
the control unit is connected to the detection unit, the first switch and the second switch and used for controlling the first switch and the second switch to be switched on or switched off according to the detection result.
Preferably, the detection unit includes:
the comparison module is connected to the acquisition unit and used for comparing the standard output circuit parameter threshold with the real-time output circuit parameter and continuously outputting a timing signal to a timing module when the real-time output circuit parameter does not accord with the real-time state threshold;
the timing module is connected to the comparison module and used for timing the time length of the continuously received timing signal and outputting the detection result to the control unit when the timing reaches a preset timing threshold value.
Preferably, the vehicle emergency starting device further comprises:
the external input module is respectively connected to the super capacitor module and the battery module and is used for charging the super capacitor and the storage battery by using an external power supply;
the output module is connected to the battery module and used for charging external equipment connected to the output module by adopting the battery module;
and the lighting module is connected to the battery module and is used for providing an LED lighting function under the power supply of the battery module.
Preferably, the vehicle emergency starting device further comprises:
the control module is respectively connected with the super capacitor module, the mode control module, the battery module, the output module and the lighting module, and specifically comprises:
the control module is respectively connected with the super capacitor module, the mode control module, the battery module, the output module and the lighting module, and specifically comprises:
the electric quantity display unit is used for acquiring the real-time electric quantity of the super capacitor module and the battery module and displaying the real-time electric quantity to a user for checking;
the direct current control unit is used for controlling a charging mode of the output module for charging the external equipment;
and the illumination control unit is used for controlling the working mode of the illumination module for providing the LED illumination function.
In the technical scheme, the method further comprises the following steps:
the method for automatically switching the current is characterized in that the application of the vehicle emergency starting device comprises the following steps:
step S1: the comparison module compares the real-time output circuit parameters of the vehicle emergency starting device with the standard output circuit parameter threshold value, and judges whether the real-time output voltage parameters in the real-time output circuit parameters are lower than the standard output voltage threshold value in the standard output circuit parameter threshold value or not;
if so, the comparison module continuously outputs a first timing signal to the timing module so that the timing module times the time for continuously receiving the first timing signal, and a super capacitor output process is carried out;
if not, go to step S2;
step S2: the comparison module judges whether the real-time output current parameter in the real-time output circuit parameters is larger than a standard output current threshold in the standard output circuit parameter thresholds;
if yes, go to step S3;
if not, repeating the step S2;
step S3: the comparison module continuously outputs a second timing signal to the timing module, and the timing module times the duration of continuously receiving the second timing signal and judges whether the timing reaches a second timing threshold value;
if yes, go to step S4;
if not, the timing module resets the timing and returns to the step S2;
step S4: the detection unit outputs a first detection result to a control unit, and the control unit controls a first switch to be closed;
step S5: the comparison module continuously judges whether a real-time output voltage parameter in the real-time output circuit parameters is lower than a standard output voltage threshold in the standard output circuit parameter thresholds;
if yes, the detection unit outputs a second detection result to the control unit, and the control unit controls a second switch to be switched off;
if not, step S5 is repeated.
Preferably, the super capacitor output process includes:
step S11: the timing module judges whether the timing of the time for continuously receiving the first timing signal reaches a first timing threshold value;
if yes, the timing module resets the timing and returns to the step S1;
if not, go to step S12;
step S12: the detection unit outputs a third detection result to the control unit, the control unit controls the first switch to be closed, and the second switch is opened.
The technical scheme of the invention has the beneficial effects that: according to the technical scheme, the battery is used for storing a large amount of electric energy for a long time, so that the super capacitor in the emergency starting device can be charged by using the electric energy in the battery under the condition that an external power supply does not exist for charging or the super capacitor is not charged for a long time; and an output control module is additionally arranged to control the battery and the super capacitor to supply power for starting the vehicle, so that the flexibility of the vehicle emergency starting device is improved, the normal starting of the vehicle is ensured, and the practicability of the emergency starting device is improved.
Drawings
Embodiments of the present invention will now be described more fully hereinafter with reference to the accompanying drawings. The drawings are, however, to be regarded as illustrative and explanatory only and not as restrictive of the scope of the invention.
Fig. 1 is a block diagram of a vehicle emergency starting apparatus according to an embodiment of the present invention;
FIG. 2 is a structural assembly diagram of a super capacitor module according to an embodiment of the present invention;
FIG. 3 is a unit diagram of a mode control module according to an embodiment of the present invention
Fig. 4 is a structural composition diagram of a battery module according to an embodiment of the present invention;
FIG. 5 is a structural assembly diagram of an output control module according to an embodiment of the present invention;
FIG. 6 is a structural assembly diagram of a detection module according to an embodiment of the present invention;
FIG. 7 is a structural assembly diagram of a control module according to an embodiment of the present invention;
fig. 8 is a system flowchart of an automatic current switching method according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
An emergency vehicle starting device connected to a vehicle by an electric clamp, comprising:
the super capacitor module 1 comprises a super capacitor 11, and when the vehicle emergency starting device is started and connected to a vehicle, the super capacitor 11 is used for supplying power for starting the vehicle;
the mode control module 2 is connected to the super capacitor module 1 and used for judging the charging amount of the super capacitor 11 when the vehicle emergency starting device is started, and switching the vehicle emergency starting device between a preset first mode and a preset second mode according to the charging amount of the super capacitor 11;
the first mode is used to indicate that the supercapacitor 11 is in an insufficiently charged state;
the second mode is used to express that the super capacitor 11 is in a fully charged state;
the battery module 3 is respectively connected to the super capacitor module 1 and the mode control module 2, comprises a storage battery 31, and charges the super capacitor 11 through the storage battery 31 when the vehicle emergency starting device is started and is in the first mode;
when the vehicle emergency starting device is started and is in a second mode, and the vehicle emergency starting device is connected with the vehicle through the electric clamp, the vehicle emergency starting device charges the vehicle for starting;
and the output control module 4 is connected to the super capacitor module 1 and the battery module 2, the super capacitor module 1 and the battery module 2 are connected to a high-current connector Q through the output control module 4, the high-current connector Q is connected to an electric clamp, and the output control module 4 is used for controlling the electric energy output of the super capacitor module 1 and the battery module 3 through the closing or opening of a switch.
Specifically, the super capacitor 11 cannot store enough electric energy for a long time because of self-discharge, and the storage battery 31 can store more electric energy for a long time.
Further, the current for starting the vehicle is usually more than 100-200 amperes, the storage battery 31 cannot output enough current, and the super capacitor 11 can instantly release very large current to start the vehicle, so that the combined use of the super capacitor 11 and the storage battery 31 can realize that the vehicle emergency starting device is not charged for a long time and does not influence normal use.
Further, the output control module 4 controls the output of the actual electric energy of the vehicle emergency starting apparatus by controlling the connection of the super capacitor module 1 and the battery module 2 with the large current connector Q.
In a preferred embodiment, the supercapacitor module 1 further comprises:
the balancing unit 12 is connected to the super capacitor 11 and is used for performing voltage balancing management on the super capacitor 11 so as to prevent the super capacitor 11 from being damaged due to overhigh voltage;
and the first charging management unit 13 is connected to the super capacitor 11 and is used for performing voltage boosting or voltage reducing processing on the input voltage of the super capacitor 11 so as to enable the input voltage to be in a constant voltage and constant current state.
Specifically, the equalizing unit 12 is an equalizing circuit.
Further, when the plurality of super capacitors 11 are included in the super capacitor module 1, the equalizing unit 12 equalizes and manages the voltages of the plurality of super capacitors 11 using the equalizing circuit.
In a preferred embodiment, the mode control module 2 comprises:
the monitoring unit 21 is connected to the super capacitor module 1 and used for monitoring the real-time electric quantity of the super capacitor 11;
the judging unit 22 is connected to the super capacitor module 1 and the monitoring unit 21, and prestores an electric quantity threshold of the super capacitor 11;
when the real-time electric quantity does not reach the electric quantity threshold value, the judging unit 22 switches the vehicle emergency starting device to a first mode;
when the real-time electric quantity reaches the electric quantity threshold value, the judgment unit 22 switches the vehicle emergency starting device to the second mode.
Further, the monitoring unit 21 detects the real-time electric quantity of the super capacitor 11 and outputs the real-time electric quantity to the judging unit 22.
Further, the determination unit 22 controls the vehicle emergency starting apparatus to switch the mode according to the electric quantity threshold value.
Specifically, the electric quantity threshold is a full-load electric quantity value of the super capacitor 11.
In a preferred embodiment, the battery module 3 further comprises:
a battery protection unit 32 connected between the storage battery 31 and the super capacitor module 1, for protecting the storage battery 31 from damage of the storage battery 31;
and a second charge management unit 33 connected to the battery protection unit 32, for performing voltage boosting or voltage dropping processing on the input voltage of the storage battery 31 to make the input voltage in a constant voltage and constant current state.
Specifically, the storage battery 31 may be a lithium battery or the like.
Specifically, the battery protection unit 32 is a battery protection circuit for implementing overcharge protection, overdischarge protection, short circuit protection, overcurrent protection, and over-temperature protection of the battery.
Further, the storage battery 31 is connected to the mode control module 2, and when the determination unit 22 switches the vehicle emergency starting apparatus to the first mode, the storage battery 31 charges the super capacitor 11.
In a preferred embodiment, the output control module 4 comprises:
the first switch 41 is arranged between the super capacitor module 1 and the high-current connector Q and used for controlling the super capacitor 11 to supply power to the vehicle;
a second switch 42 provided between the battery module 3 and the high-current connector Q for controlling the battery 31 to supply power to the vehicle and the initial state of the second switch 42 is closed;
the acquisition unit 43 is connected to the high-current connector Q and used for acquiring real-time output circuit parameters of the vehicle emergency starting device;
the detection unit 44 is connected to the acquisition unit 43, is pre-stored with a standard output circuit parameter threshold, and is used for detecting real-time output circuit parameters according to the standard output circuit parameter threshold and outputting a detection result to the control unit 45;
the control unit 45 is connected to the detection unit 44, the first switch 41 and the second switch 42, and is used for controlling the first switch 41 and the second switch 42 to be closed or opened according to the detection result.
Specifically, the standard output circuit parameter threshold includes a standard output voltage threshold and a standard output current threshold.
In a preferred embodiment, the detection unit 44 comprises:
the comparison module 441 is connected to the acquisition unit 43, and is configured to compare the standard output circuit parameter threshold with the real-time output circuit parameter, and continuously output a timing signal to the timing module 442 when the real-time output circuit parameter does not meet the standard output circuit parameter threshold;
the timing module 442 is connected to the comparing module 441, and is configured to time a duration of the continuous receiving of the timing signal, and output a detection result to the control unit 45 when the time reaches a preset timing threshold.
In a preferred embodiment, the emergency starting device for a vehicle further comprises:
the external input module 5 is respectively connected to the super capacitor module 1 and the battery module 3 and is used for charging the super capacitor 11 and the storage battery 31 by using an external power supply;
the output module 6 is connected to the battery module 3 and used for charging external equipment connected to the output module 6 by using the battery module 3;
and the lighting module 7 is connected to the battery module 3 and is used for providing an LED lighting function under the power supply of the battery module 3.
Specifically, the external input module 5 may be a vehicle-mounted power supply, a solar panel, a mobile power supply, a household charger, or the like.
Specifically, the output module 6 performs voltage conversion by the DC voltage conversion circuit and then outputs electric energy in the form of interfaces such as USB, DC, Type-C, and the like.
Specifically, the lighting module 7 is an LED bulb with a driving circuit.
In a preferred embodiment, the emergency starting device for a vehicle further comprises:
control module 8, control module 8 connects super capacitor module 1, mode control module 2, battery module 3, output module 6 and lighting module 7 respectively to specifically include:
the electric quantity display unit 81 is used for acquiring the real-time electric quantities of the super capacitor module 1 and the battery module 3 and displaying the electric quantities to a user for checking;
a dc control unit 82 for controlling a charging mode in which the output module 6 charges the external device;
and an illumination control unit 83 for controlling the operation mode of the illumination module 7 for providing the LED illumination function.
Specifically, the power display unit 81 may be a display screen, a multi-color tower lamp, or an indicator lamp.
Specifically, if the electric quantity display unit 81 is a display screen, the display screen displays the real-time electric quantities of the capacitor module 1 and the battery module 3 to the user for viewing in the form of characters, images or voices.
Specifically, if electric quantity display unit 81 is the polychrome tower lamp, the real-time electric quantity of capacitor module 1 and battery module 3 shows through a polychrome tower lamp respectively, and along with the reduction of electric quantity, the bright lamp height of this polychrome tower lamp reduces gradually, and luminous colour is by green to red in order to show real-time electric quantity.
Specifically, if electric quantity display unit 81 is the pilot lamp, this pilot lamp can be bright red light when emergent starting drive of vehicle is in first mode, bright green light when emergent starting drive of vehicle is in the second mode is in order to look over real-time electric quantity for the user.
The power display unit 81 may be a plurality of devices for displaying the power in real time in a plurality of ways, which are not described herein, but all of which are included in the scope of the present disclosure.
In a preferred embodiment, the operating modes of the lighting module 7 providing the LED lighting function comprise an SOS lighting mode and/or a deflagration lighting mode.
Specifically, the illumination control unit 83 controls the illumination module 7 to perform a plurality of different illumination modes according to the user's operation.
Specifically, when a user presses a button, the lighting module 7 emits light, and at this time, the lighting module is in a flashing lighting mode; the user presses the button twice in succession, and the lighting module 7 flashes at a fixed frequency, which is the SOS lighting mode.
The lighting module 7 may be configured with a plurality of lighting modes, and the plurality of lighting modes may correspond to a plurality of operations of a user, which are not described herein, but are included in the scope of the present disclosure.
In the technical scheme, the method further comprises the following steps:
an automatic current switching method is applied to the vehicle emergency starting device and comprises the following steps:
step S1: the comparison module 441 compares the real-time output circuit parameter of the vehicle emergency starting device with a standard output circuit parameter threshold, and determines whether a real-time output voltage parameter in the real-time output circuit parameter is lower than a standard output voltage threshold in the standard output circuit parameter threshold;
if yes, the comparing module 441 continuously outputs the first timing signal to the timing module 442, and the timing module 342 times a duration of continuously receiving the first timing signal and performs a super capacitor output process;
if not, go to step S2;
step S2: the comparing module 441 judges whether the real-time output circuit parameter in the real-time state parameter is greater than a standard output current threshold in the standard output circuit parameter thresholds;
if yes, go to step S3;
if not, repeating the step S2;
step S3: the comparing module 441 continuously outputs the second timing signal to the timing module 442, and the timing module 442 times the duration of continuously receiving the second timing signal and determines whether the timing reaches a second timing threshold;
if yes, go to step S4;
if not, the timing module 442 clears the timing, and returns to step S2;
step S4: the detection unit 44 outputs the first detection result to the control unit 45, and the control unit 45 controls the first switch 31 to be closed;
step S5: the comparing module 441 continuously determines whether the real-time output voltage parameter in the real-time output circuit parameters is lower than a standard output voltage threshold in the standard output circuit parameter thresholds;
if yes, the detection unit 44 outputs a second detection result to the control unit 45, and the control unit 45 controls the second switch 42 to be turned off;
if not, step S5 is repeated.
Specifically, the standard output voltage threshold is the lowest voltage point of the battery over-discharge protection.
Specifically, in step S4, the control unit 45 controls the first switch 41 to be closed, and the super capacitor 11 is connected in parallel with the battery 31 and outputs electric energy together.
Specifically, the control unit 35 controls the second switch 32 to be turned off in step S5, at which time the power output of the battery 31 is turned off.
In a preferred embodiment, the supercapacitor output process comprises:
step S11: the timing module 442 determines whether the timing of the duration of the continuous reception of the first timing signal reaches a first timing threshold;
if yes, the timing module 442 resets the timing to zero, and returns to step S1;
if not, go to step S12;
step S12: the detection unit 44 outputs the third detection result to the control unit 45, and the control unit 45 controls the first switch 41 to be closed and the second switch 42 to be opened.
Specifically, in step S12, the control unit 45 controls the first switch 41 to be closed and the second switch 42 to be opened, and at this time, the power output of the battery 31 is turned off, and only the super capacitor 11 is performing the power output.
The technical scheme of the invention has the beneficial effects that: according to the technical scheme, the battery is used for storing a large amount of electric energy for a long time, so that the super capacitor in the emergency starting device can be charged by using the electric energy in the battery under the condition that an external power supply does not exist for charging or the super capacitor is not charged for a long time; and an output control module is additionally arranged to control the battery and the super capacitor to supply power for starting the vehicle, so that the flexibility of the vehicle emergency starting device is improved, the normal starting of the vehicle is ensured, and the practicability of the emergency starting device is improved.
While the invention has been described with reference to a preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiment, but is intended to cover various modifications, equivalents and obvious changes which may be made therein by those skilled in the art.

Claims (7)

1. An automatic current switching method is applied to a vehicle emergency starting device, the vehicle emergency starting device is connected to a vehicle through an electric clamp, and the method comprises the following steps:
step S1: a comparison module compares the real-time output circuit parameter of the vehicle emergency starting device with a standard output circuit parameter threshold value, and judges whether the real-time output voltage parameter in the real-time output circuit parameter is lower than the standard output voltage threshold value in the standard output circuit parameter threshold value;
if yes, the comparison module continuously outputs a first timing signal to a timing module to enable the timing module to time the duration of continuously receiving the first timing signal, and a super capacitor output process is carried out;
if not, go to step S2;
step S2: the comparison module judges whether the real-time output current parameter in the real-time output circuit parameters is larger than a standard output current threshold in the standard output circuit parameter thresholds;
if yes, go to step S3;
if not, repeating the step S2;
step S3: the comparison module continuously outputs a second timing signal to the timing module, and the timing module times the duration of continuously receiving the second timing signal and judges whether the timing reaches a second timing threshold value;
if yes, go to step S4;
if not, the timing module resets the timing and returns to the step S2;
step S4: the detection unit outputs a first detection result to the control unit, and the control unit controls the closing of a first switch;
step S5: the comparison module continuously judges whether a real-time output voltage parameter in the real-time output circuit parameters is lower than a standard output voltage threshold in the standard output circuit parameter thresholds;
if yes, the detection unit outputs a second detection result to the control unit, and the control unit controls a second switch to be switched off;
if not, repeating the step S5;
the emergency starting device for the vehicle comprises:
the super capacitor module comprises a super capacitor, and when the vehicle emergency starting device is started and connected to the vehicle, electric energy is provided for starting the vehicle through the super capacitor;
the mode control module is connected to the super capacitor module and used for judging the charging amount of the super capacitor when the vehicle emergency starting device is started, and switching the vehicle emergency starting device between a preset first mode and a preset second mode according to the charging amount of the super capacitor;
the first mode is used for indicating that the super capacitor is in an unfilled state;
the second mode is used for expressing that the super capacitor is in a fully charged state;
the battery module is respectively connected to the super capacitor module and the mode control module and comprises a storage battery, and when the vehicle emergency starting device is started and is in the first mode, the super capacitor is charged through the storage battery;
when the vehicle emergency starting device is started and is in the second mode, and meanwhile the vehicle emergency starting device is connected with the vehicle through an electric clamp, the vehicle emergency starting device supplies power for starting the vehicle;
the output control module is connected to the super capacitor module and the battery module, the super capacitor module and the battery module are connected to a high-current connector through the output control module, the high-current connector is connected to the electric clamp, and the output control module is used for controlling the electric energy output of the super capacitor module and the battery module through the on-off of a switch;
the output control module includes:
the first switch is arranged between the super capacitor module and the high-current connector and used for controlling the super capacitor to supply power to the vehicle;
the second switch is arranged between the battery module and the high-current connector and used for controlling the storage battery to supply power to the vehicle, and the initial state of the second switch is closed;
the acquisition unit is connected to the high-current connector and used for acquiring real-time output circuit parameters of the vehicle emergency starting device;
the detection unit is connected to the acquisition unit, is pre-stored with a standard output circuit parameter threshold, and is used for detecting the real-time output circuit parameter according to the standard output circuit parameter threshold and outputting a detection result to a control unit;
the control unit is connected to the detection unit, the first switch and the second switch and is used for controlling the first switch and the second switch to be switched on or switched off according to the detection result;
the detection unit includes:
the comparison module is connected to the acquisition unit and used for comparing the parameter threshold of the standard output circuit with the parameter of the real-time output circuit and continuously outputting a timing signal to a timing module when the parameter of the real-time output circuit does not accord with the parameter threshold of the standard output circuit;
the timing module is connected to the comparison module and used for timing the time length of the continuously received timing signal and outputting the detection result to the control unit when the timing reaches a preset timing threshold value.
2. The method according to claim 1, wherein the super capacitor output process comprises:
step S11: the timing module judges whether the timing of the time for continuously receiving the first timing signal reaches a first timing threshold value;
if yes, the timing module resets the timing and returns to the step S1;
if not, go to step S12;
step S12: the detection unit outputs a third detection result to the control unit, the control unit controls the first switch to be closed, and the second switch is opened.
3. The method according to claim 1, wherein the super capacitor module comprises:
the balancing unit is connected to the super capacitor and used for performing voltage balancing management on the super capacitor so as to prevent the super capacitor from being damaged due to overhigh voltage;
and the first charging management unit is connected to the super capacitor and used for boosting or reducing the input voltage of the super capacitor so as to enable the input voltage to be in a constant voltage and constant current state.
4. The method of claim 1, wherein the mode control module comprises:
the monitoring unit is connected to the super capacitor module and used for monitoring the real-time electric quantity of the super capacitor;
the judging unit is connected to the super capacitor module and the monitoring unit and prestores an electric quantity threshold of the super capacitor;
when the real-time electric quantity does not reach the electric quantity threshold value, the judging unit switches the vehicle emergency starting device to the first mode;
and when the real-time electric quantity reaches the electric quantity threshold value, the judging unit switches the vehicle emergency starting device to the second mode.
5. The method according to claim 1, wherein the battery module comprises:
the battery protection unit is connected between the storage battery and the super capacitor module and used for protecting the storage battery so as to prevent the storage battery from being damaged;
and the second charging management unit is connected to the battery protection unit and used for boosting or reducing the input voltage of the storage battery so as to enable the input voltage to be in a constant voltage and constant current state.
6. The method for automatically switching current according to claim 1, further comprising:
the external input module is respectively connected to the super capacitor module and the battery module and is used for charging the super capacitor and the storage battery by using an external power supply;
the output module is connected to the battery module and used for charging external equipment connected to the output module by adopting the battery module;
and the lighting module is connected to the battery module and is used for providing an LED lighting function under the power supply of the battery module.
7. The method according to claim 6, further comprising a control module, wherein the control module is respectively connected to the super capacitor module, the mode control module, the battery module, the output module, and the lighting module, and specifically comprises:
the electric quantity display unit is used for acquiring the real-time electric quantity of the super capacitor module and the battery module and displaying the real-time electric quantity to a user for checking;
the direct current control unit is used for controlling a charging mode of the output module for charging the external equipment;
and the illumination control unit is used for controlling the working mode of the illumination module for providing the LED illumination function.
CN202011098508.1A 2020-10-14 2020-10-14 Vehicle emergency starting device and current automatic switching method Active CN112271770B (en)

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