CN108973685A - A kind of delay cut-off control circuit and method for fuel cell integral new-energy passenger - Google Patents
A kind of delay cut-off control circuit and method for fuel cell integral new-energy passenger Download PDFInfo
- Publication number
- CN108973685A CN108973685A CN201710408220.1A CN201710408220A CN108973685A CN 108973685 A CN108973685 A CN 108973685A CN 201710408220 A CN201710408220 A CN 201710408220A CN 108973685 A CN108973685 A CN 108973685A
- Authority
- CN
- China
- Prior art keywords
- low
- signal
- vehicle
- power supply
- delay cut
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
- B60R16/033—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for characterised by the use of electrical cells or batteries
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Automation & Control Theory (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Transportation (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a kind of delay cut-off control circuit for fuel cell integral new-energy passenger, which connect with entire car controller, and entire car controller exports delay cut-off signal by the normal power down signal of detection various vehicle components.The delay cut-off control circuit has such as lower unit: the first low-tension supply unit and the second low-tension supply unit, passes through the control of low-tension supply feedback signal, provides low-tension supply for vehicle；The on-off of delay cut-off control unit, one gear power supply signal of control realizes the delay cut-off of vehicle according to the state output low-tension supply feedback signal of the delay cut-off signal received；Entire car controller power control unit is provided respectively for entire car controller by the double loop power supply of a gear power supply signal and the control of delay cut-off signal using the voltage of the second low-tension supply unit output.This invention ensures that having the traffic safety of the high-low pressure electrical stability and vehicle of the fuel-cell vehicle of double battery voltage platforms in abnormal power-down.
Description
Technical field
The present invention relates to the fuel cell integral new-energy passenger fields of double battery voltage platforms, more particularly, to a kind of double storages
The delay cut-off control circuit and method of the fuel cell integral new-energy passenger of cell voltage platform.
Background technique
Now, facing to environmental pollution, deficient two hang-ups of petroleum resources, environmentally protective energy-saving integral new-energy passenger is got over
Get over the attention by every country, environmental protection and energy conservation are an important development directions of 21 century automotive engineering.Various countries simultaneously
Emission regulation it is also increasingly stringent, fuel cell integral new-energy passenger just has the characteristics that zero-emission, pollution-free green novel environment friendly
Car.
Fuel cell integral new-energy passenger field in the prior art, for the new energy of fuel cell of battery voltage platform
The control method of source power supply for passenger car there is no abnormal power-down Preservation tactics.
Summary of the invention
The first technical problem to be solved by the present invention is to need to provide a kind of fuel for double battery voltage platforms
Battery new energy car delay cut-off control circuit and method, which realizes powers off in fuel cell integral new-energy passenger
Later, by the power-off response signal of the various vehicle components such as entire car controller fuel cell stack system, high-low pressure is controlled
Down sequences and time both ensure that the high-low pressure safety of fuel cell pile system and vehicle other component, in turn avoid because
The vehicle power-off fuel cell pile response time can not shut down in time slowly, and the high pressure generated damages other electrical components.
In order to solve the above-mentioned technical problems, the present invention provides a kind of delay cut-offs for fuel cell integral new-energy passenger
Control circuit, the delay cut-off control circuit have: the first low-tension supply unit interconnected and the second low-tension supply list
Member, wherein the power control switch that every group of low-tension supply unit respectively includes battery feed, connect with the battery feed,
And the power supply relay connecting with the power control switch, each power supply relay receive low-tension supply feedback control respectively
Signal, and combine the power control switch of corresponding group, output numerical value different the first low-tension supply and the second low-tension supply are vehicle
Offer vehicle low-tension supply, wherein the low-tension supply feedback signal controls the on off operating mode of the power supply relay；Delay
Control unit is powered off, is connect with the first low-tension supply unit and the second low-tension supply unit, one gear power supply of control
The on-off of signal, and according to the delay cut-off signal condition received, the low-tension supply feedback signal is exported, described in realizing
The delay cut-off of first low-tension supply unit and the second low-tension supply unit；Entire car controller, with the delay cut-off
Control unit connection exports the delay cut-off when powering on according to the on off operating mode of the gear power supply signal received
Signal, and in normal lower electricity and abnormal power-down according to the on off operating mode of the gear power supply signal, and the vehicle received
Each component normal power down signal exports the delay cut-off signal condition；Entire car controller power control unit prolongs with described
When power-off control unit connect with the entire car controller, receive the delay cut-off signal and the gear power supply signal, it is sharp
Single channel or double loop power supply are provided with the voltage that the second low-tension supply unit exports for the entire car controller.
Preferably, the entire car controller power control unit includes: first via full-vehicle control route, with described second
Low-tension supply unit, the delay cut-off control unit are connected with the entire car controller, according to the gear power supply signal
On off operating mode realizes circuit on-off, so that entire car controller power supply is powered to the entire car controller.
Preferably, the entire car controller power control unit further include: the second road full-vehicle control route, with described
Two low-tension supply units, the delay cut-off control unit are connected with the entire car controller, according to the delay cut-off signal
State realize route on-off so that second low-tension supply is powered to the entire car controller.
Preferably, the vehicle power supply includes the vehicle low-tension supply and vehicle high voltage power supply, the vehicle low tension
The offer needs in source are completed at the same time to the first low-tension supply signal, the second low-tension supply signal and the full-vehicle control
The output of device power supply signal；The entire car controller controls the vehicle high voltage power supply.
Preferably, the first via full-vehicle control route includes first via full-vehicle control relay and the vehicle that is attached thereto
Controller current-limiting apparatus；The second road full-vehicle control route includes No. second vehicle supply relay, and second vehicle supplies
Electrical relay is connect with the entire car controller current-limiting apparatus.
Preferably, the delay cut-off control unit include a gear power switch, with it is described one gear power switch connect
One gear power supply relay and the delay cut-off relay being connect with the gear power supply relay.
Preferably, the delay cut-off control unit can also reception delay power-off signal, according to the delay cut-off believe
Number state control the on-off of a gear power supply relay or the delay cut-off relay, export low-tension supply feedback
Control signal.
On the other hand, a kind of delay cut-off control method for fuel cell integral new-energy passenger, the new energy are provided
Source car has double battery voltage platforms, and implements in the delay cut-off control circuit, and this method includes following step
It is rapid: in power up, it is closed the power control switch of the first low-tension supply unit and the second low-tension supply unit,
Time-delay relay (K1) the normally-closed contact closure, gear power supply relay (K2) obtains electric, normally opened contact closure, and closes
Gear power switch (A2) is closed, the entire car controller obtains electric, the first low-tension supply unit and second low pressure
The power supply relay (K3, K4) of power supply is closed, and the vehicle low-tension supply obtains electric；The entire car controller is detecting gear electricity
After source signal, the delay cut-off signal is exported, time-delay relay (K1) normally-closed contact disconnects, normally opened contact closure, institute
State gear power supply relay (K2) normally opened contact disconnection, the vehicle power supply electrifying.
Preferably, the delay cut-off control method further includes following steps: in normal lower electric process, disconnecting a gear electricity
Source switch (A2), the entire car controller are detecting the gear power supply signal disconnection and the positive normal off of the various vehicle components
When electric signal, the delay cut-off signal, the vehicle power supply electrifying are disconnected.
Preferably, the delay cut-off control method further includes following steps: during abnormal power-down, the vehicle control
Device processed detects that the gear power supply signal disconnects and export the delay cut-off signal, passes through the delay cut-off relay
(K1) normally opened contact is closed, and guarantees various vehicle components normal operation；The entire car controller detects the positive normal off of various vehicle components
After electric signal, the delay cut-off signal is disconnected, disconnects the vehicle power supply, disconnects the first low-tension supply unit and described
The power control switch of second low-tension supply unit.
Compared with prior art, one or more embodiments in above scheme can have following advantage or beneficial to effect
Fruit:
The method that the present invention uses the normally-open normally-close interface by interrelated logic policy control relay, both realizes vehicle
Delayed-breaking-off function, and guarantee each component of vehicle high-low pressure continue steady operation in the case of abnormal power failure, thus ensure
The safety traffic of vehicle.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention can be by specification, right
Specifically noted structure is achieved and obtained in claim and attached drawing.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention
It applies example and is used together to explain the present invention, be not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is each component connection of the fuel cell integral new-energy passenger for having double battery voltage platforms of the embodiment of the present application
Relation schematic diagram.
Fig. 2 is the structural schematic diagram of the delay cut-off control circuit of the fuel cell integral new-energy passenger of the embodiment of the present application.
Fig. 3 is the first low-tension supply unit 21, the second low-tension supply in the delay cut-off control circuit of the embodiment of the present application
The schematic diagram of unit 22 and delay cut-off control unit 23.
Fig. 4 is the principle of entire car controller power control unit 24 in the delay cut-off control circuit of the embodiment of the present application
Figure.
Fig. 5 is the delay cut-off control method for fuel cell integral new-energy passenger of the embodiment of the present application.
Specific embodiment
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings and examples, how to apply to the present invention whereby
Technological means solves technical problem, and the realization process for reaching technical effect can fully understand and implement.It needs to illustrate
As long as not constituting conflict, each feature in each embodiment and each embodiment in the present invention can be combined with each other,
It is within the scope of the present invention to be formed by technical solution.
In order to overcome the deficiencies in the prior art described above, the present embodiment proposes a kind of for double battery voltage platforms
The power control method of fuel battery passenger car.This method utilizes the power on/off order of multiple relays, ensure that entire car controller
Continued power, thus by detection entire car controller delay cut-off signal output situation, control each component of vehicle high-low pressure
The on-off electricity condition of power supply both ensure that the case where safety traffic of vehicle in turn avoids abnormally high-voltage damage vehicle part.
Fig. 1 is each component connection of the fuel cell integral new-energy passenger for having double battery voltage platforms of the embodiment of the present application
Relation schematic diagram.In the present embodiment, vehicle power supply is divided into vehicle low-tension supply and vehicle high voltage power supply, wherein vehicle low tension
The offer needs in source are completed at the same time to the first low-tension supply signal, the second low-tension supply signal and entire car controller power supply signal
Output.It is illustrated below with reference to electric power thus supplied of the Fig. 1 to the high-low pressure component of vehicle.On the one hand, double battery voltage platforms
Including the first battery feed (its voltage range is 8~18V) and the second battery feed (its voltage range is 18~32V),
It is a part of delay cut-off control circuit, provides 12V low-voltage and 24V low-voltage for system low-voltage block terminal, system is low
Block terminal is pressed to provide power supply, the normal operation of support vehicles low-voltage component for vehicle low pressure components；On the other hand, full-vehicle control
Device power supply is provided by the second battery feed (24V low-voltage).It should be noted that in the present embodiment, 12V battery is the
One specific example of one battery feed (the first low-tension supply is provided by the first battery feed), 24V battery are second
One specific example of battery feed (the second low-tension supply is provided by the second battery feed).
In addition, the control of vehicle high voltage power supply passes through control vehicle 24V low pressure all of entire car controller with reference to Fig. 1
The input and output of power supply realize that low pressure 24V power supply signal controls the high-voltage great-current contact of vehicle control system mesohigh component
The on-off of device indirectly controls the on-off of vehicle high-voltage component.Therefore, it is the normal work for guaranteeing vehicle high-low pressure component, also needs
Continued power is carried out to the entire car controller of vehicle.
It should be noted that the in summary power supply source situation of vehicle low-tension supply and vehicle high voltage power supply, in order to
The traffic safety of support vehicles, on the one hand, in vehicle abnormality power-off, need to system low-voltage block terminal and entire car controller into
Row continued power；On the other hand, in vehicle normal power down, system low-voltage block terminal and entire car controller device are all prolonged
When power operation.
It should be noted that entire car controller is the core component of vehicle operation, and after powering on for it, full-vehicle control
Device is able to detect a gear power supply signal and second gear power supply signal, wherein a gear power supply signal connects low-voltage, and (low-voltage is herein
The 24V normalizing that second battery feed provides), second gear power supply signal connects high voltage (integral new-energy passenger electrokinetic cell system electricity
Pressure is generally 300V or more, and high pressure refers to electrokinetic cell system high pressure herein).In addition, entire car controller passes through CAN network and more
A vehicle high-voltage component is communicated, to obtain relevant information.In the present embodiment, entire car controller is according to receiving and parsing through
The communication information of each high voltage component to judge that can delay cut-off signal export, and then is based on delay cut-off control circuit, real
The delayed-breaking-off function of existing vehicle.
Fig. 2 is the structural schematic diagram of the delay cut-off control circuit of the fuel cell integral new-energy passenger of the embodiment of the present application,
The control circuit includes such as lower unit: the first low-tension supply unit 21, the second low-tension supply unit 22, delay cut-off control unit
23 and entire car controller power control unit 24.Fig. 3 is the first low tension in the delay cut-off control circuit of the embodiment of the present application
The schematic diagram of source unit 21, the second low-tension supply unit 22 and delay cut-off control unit 23, Fig. 4 are prolonging for the embodiment of the present application
When power-off control circuit in entire car controller power control unit 24 schematic diagram.Specifically, with reference to Fig. 2,3, the first low tension
Source unit 21 comprising the first battery feed, with concatenated first power control switch of the first battery feed and with first
Concatenated first power supply relay of power control switch, the first power supply relay receives low-tension supply feedback control signal, in parallel
The first power switch is closed, exports the first low-tension supply provided by the first battery feed, wherein low-tension supply feedback signal control
Make the on off operating mode of the first power supply relay；Second low-tension supply unit 22 comprising the second battery feed and the second electric power storage
The concatenated second source control switch of pond power supply and with the concatenated second source relay of second source control switch, second source
Relay receives low-tension supply feedback control signal, and combines second source switch, what output was provided by the second battery feed
Second low-tension supply, wherein the on off operating mode of low-tension supply feedback signal control second source relay；Delay cut-off control is single
Member 23, connect with the first low-tension supply unit and the second low-tension supply unit, can control the on-off of a gear power supply signal, and
According to the delay cut-off signal condition received, low-tension supply feedback signal is exported, to realize the first low-tension supply unit and the
The delayed-breaking-off function of two low-tension supply units；With reference to Fig. 2,4, entire car controller power control unit 24 comprising the first via
Full-vehicle control route and the second road full-vehicle control route, connect, reception delay with delay cut-off control unit and entire car controller
Power-off signal and a gear power supply signal, provide single channel or double using the voltage of the second low-tension supply unit output for entire car controller
Road power supply.
Furtherly, first via full-vehicle control route, with the second low-tension supply unit, delay cut-off control unit and vehicle
Controller connection realizes circuit on-off according to the on off operating mode of a gear power supply signal, so that entire car controller power supply is to vehicle control
Device power supply processed；Second road full-vehicle control route connects with the second low-tension supply unit, delay cut-off control unit and entire car controller
It connects, the on-off of route is realized according to the state of delay cut-off signal, so that the second low-tension supply is powered to entire car controller.
Wherein, entire car controller (not shown) is connect with delay cut-off control unit 23, when powering on according to receiving
The on off operating mode of one gear power supply signal exports delay cut-off signal, and in normal lower electricity and abnormal power-down according to a gear power supply
The on off operating mode of signal, and the various vehicle components normal power down signal received export delay cut-off signal condition.
Firstly, the first low-tension supply unit 21 and the second low-tension supply unit 22 are specifically described.First low tension
Source unit 21 by the first battery feed of 12V, with the concatenated first power control switch A4 of the first battery feed and with first
The concatenated second source relay K4 composition of power control switch A4.The on off operating mode of first power supply relay K4 is by low tension
The control of source feedback signal, when the first power control switch A4 and the first power supply relay K4 is both turned on, the output of the unit
Port exports the first low-tension supply signal provided by the first battery feed of 12V.Second low-tension supply unit 22 is by 24V second
Battery feed is connected with the concatenated second source control switch A3 of the second battery feed and with second source control switch A3
Second source relay K3 composition.Control of the on off operating mode of second source relay K3 by low-tension supply feedback signal,
When second source control switch A3 and second source relay K3 are connected, the output port of the unit is exported by 24V second
The second low-tension supply signal that battery feed provides.
Referring again to FIGS. 3, what delay cut-off control unit 23 was connect including a gear power switch A2, with a gear power switch
One gear power supply relay K2 and with the gear delay cut-off relay K1 that connect of power supply relay K2, and with the first low tension
Source unit 21, the second low-tension supply unit 22 and entire car controller power control unit 24 are connected, closure power switch A3,
A4 can be implemented as vehicle using the mutual cooperation of the on off operating mode of the gear of delay cut-off relay K1 and one power supply relay K2
The function of vehicle low-tension supply is provided.Specifically, 23 reception delay power-off signal of delay cut-off control unit, according to delay cut-off
The on-off of the one gear power supply relay K2 or delay cut-off relay K1 of state control of signal, output low-tension supply feedback control letter
Number, to control the power supply relay K4 of the first low-tension supply unit 21 and the power supply relay of the second low-tension supply unit 22 simultaneously
Device K3.More specifically, on the one hand, after closure power switch A3, delay cut-off control unit 23 receives 24V low-tension supply letter
Number, a gear power supply relay K2 conducting, one gear power switch A2 of closure, a gear power supply signal output, low-tension supply feedback control
Signal output, power supply relay K4, K3 are simultaneously turned on；On the other hand, when receiving delay cut-off signal, delay cut-off relay
Device K1 is in the conductive state, and the output of low-tension supply feedback control signal, power supply relay K4, K3 simultaneously turn on, a gear power supply after
Electric appliance K2 is disconnected.
As shown in figure 4, next, the structure and its working principle of entire car controller power control unit 24 carry out specifically
It is bright.Entire car controller power control unit 24 includes first via full-vehicle control route and the second road full-vehicle control route, specifically,
First via full-vehicle control route includes first via full-vehicle control relay K6 and the entire car controller current-limiting apparatus that is attached thereto, the
Two road full-vehicle control routes include No. second vehicle supply relay K5, and the second vehicle supply relay is also limited with entire car controller
Flow device connection, wherein after entire car controller current-limiting protection device is connected by resistance and light emitting diode, structure in parallel with protective tube
At, realize prevent high pressure damage entire car controller and other component function.
In conjunction with Fig. 3, Fig. 4, it should be noted that in the present embodiment, entire car controller power control unit 24 comprising
First via full-vehicle control route and the second road full-vehicle control route, connect with delay cut-off control unit 23 and entire car controller.
Specifically, one in delay cut-off control unit 23 keeps off in power supply signal pin P2 and entire car controller power control unit 24
One gear signal end 8081 connects；Delay cut-off pin P1 and the control of entire car controller power supply in delay cut-off control unit 23 is single
Delay cut-off control terminal 1814 in member 24 connects；24V normalizing pin P5 and full-vehicle control in delay cut-off control unit 23
24V low-pressure end connection in device power control unit 24.
Referring again to FIGS. 4, entire car controller includes two lines road, first via vehicle power supply line is powered by first via vehicle
Relay K6 control, relay K6 draw with the gear power supply signal of 24V normalizing pin P5 and one in delay cut-off control unit 23
Foot P2 is connected, after detecting a gear power supply signal, first via vehicle supply relay K6 conducting, and the normally opened touching of relay K6
Point closure, 24V power supply signal are input to entire car controller power pins 8101 after entire car controller current-limiting apparatus, vehicle
Controller powers on；No. second vehicle power supply line is controlled by No. second vehicle supply relay K5, relay K5 with prolong
When power-off control unit 23 in 24V normalizing pin P5 be connected with delay cut-off signal pins P1, when export delay cut-off signal
Afterwards, first via vehicle supply relay K5 is connected, and the normally opened contact closure of relay K5,24V power supply signal passes through full-vehicle control
It is input to entire car controller power pins 8101 after device current-limiting apparatus, provides the function of power supply so as to complete for entire car controller
Energy.
Fig. 5 is the delay cut-off control method for fuel cell integral new-energy passenger of the embodiment of the present application.This method packet
Include following steps: firstly, being closed the power supply control of the first low-tension supply unit and the second low-tension supply unit in power up
Switch, time-delay relay (K1) normally-closed contact closure, gear power supply relay (K2) obtains electric, normally opened contact closure, and is closed
One gear power switch (A2), entire car controller obtain electric, the power supply relay of the first low-tension supply unit and the second low-tension supply
(K3, K4) closure, vehicle low-tension supply obtains electric；Entire car controller is after detecting a gear power supply signal, output delay cut-off letter
Number, time-delay relay (K1) normally-closed contact disconnects, normally opened contact closure, and gear power supply relay (K2) normally opened contact disconnects, whole
Vehicle power supply electrifying.
Next, disconnecting gear power switch (A2) entire car controller in normal lower electric process and detecting gear electricity
Source signal disconnects and when various vehicle components normal power down signal, off delay power-off signal, electricity under vehicle power supply.
Finally, entire car controller detects that a gear power supply signal disconnects and exports delay cut-off during abnormal power-down
Signal is closed by delay cut-off relay (K1) normally opened contact, guarantees various vehicle components normal operation；Entire car controller detection
To after various vehicle components normal power down signal, off delay power-off signal disconnects vehicle power supply, disconnects the first low-tension supply unit
With the power control switch of the second low-tension supply unit.
Delay below with reference to Fig. 3~5, according to the principle of delay cut-off control circuit, to fuel cell integral new-energy passenger
The implementation method of power-off control function is described in detail.
Before vehicle begins to turn on power supply, vehicle is in power-off stationary state, second source switch A3, the first power switch
The gear of A4 and one power switch A2 is in an off state, and relay K1~K6 normally opened contact disconnects, system low-voltage block terminal and vehicle
The equal access failure power supply of controller.
In vehicle power up, with reference to Fig. 3, Fig. 4, firstly, closure second source switch A3 and the first power switch
A4,24V normalizing pin export 24V low-tension supply signal, meanwhile, a gear power supply relay K2 coil both ends load 24V voltage,
Its normally opened contact is closed after one gear power supply relay K2 response a period of time, at this point, vehicle, which is in wait, powers on state.
Then, by a gear power switch A2 closure, as shown in figure 3, the coil both ends of power supply relay K3, K4 load simultaneously
24V voltage, power supply relay K3, K4 switch are attracted, and vehicle low-voltage distribution box powers on.It is closed in a position switch power supply A2
Afterwards, one gear power supply signal of a gear power supply signal pin P2 output, as shown in figure 4, the coil of relay K6 has electric current to pass through, until its
Normally opened contact closure, so that first via vehicle power supply line is connected, therefore realizes and provides the function of power supply for entire car controller.
Then, a gear power supply signal is detected after entire car controller powers on, and is exported by delay cut-off pin 1814
Effective delay cut-off signal, the normally opened contact closure of No. second vehicle supply relay K5, at this point, No. first, second vehicle
Power supply line is both turned on, to realize the function that supplies power with double circuit for entire car controller.Wherein, delay cut-off signal low level
Output is effective.With reference to Fig. 3, when delay cut-off pin P1 inputs effective delay cut-off signal, delay cut-off relay K1 is led
It is logical, so that relay K3, K4 are connected, meanwhile, the coil device of a gear power supply relay K2 gradually discharges until its normally opened contact
It disconnects, and then completes the process that vehicle connects vehicle power supply.
Finally, being illustrated to the process of vehicle delay cut-off.The power process of vehicle is divided into two kinds of situations, and one is vehicle
Normal power down process, secondly be vehicle abnormal power-down process.It should be noted that no matter which kind of power-off feelings vehicle belongs to
Condition, entire car controller requires first to detect the break-make situation of a gear power supply signal, thus by first via vehicle supply lines
Road first disconnects, and then, judges whether to continue to output delay cut-off signal, and then ensures the on-off shape of No. second vehicle power supply line
State, to realize the power down function under vehicle delay different situations.
First normally electric process is descended to be described in detail on vehicle below.Firstly, after disconnecting second gear power switch, vehicle control
Device processed detects that second gear power supply signal disconnects, and is communicated by CAN network with various vehicle components, confirmation will power off, to each
High voltage power supply is disconnected after unit response.Then, with reference to Fig. 4, a gear power supply signal is disconnected, first via vehicle supply relay K6
It disconnects, first via vehicle power supply line disconnects, and entire car controller detects that a gear power supply signal disconnects, and delay cut-off signal continues
Low level signal is exported, at this point, the normally opened contact of No. second vehicle supply relay K5 is in closed state, so that the second tunnel is whole
The conducting of vehicle power supply line, meanwhile, as shown in figure 3, the conducting of delay cut-off relay K1 ensure that leading for power supply relay K3, K4
Logical state, has ensured the continued power of entire car controller and system low-voltage block terminal, various vehicle components electric power thus supplied is normal.It connects
, entire car controller is communicated by CAN network with various vehicle components, when confirming that each component meets off-position, is cancelled
To its normally opened contact after the output of delay cut-off signal, delay cut-off relay K1 and No. second vehicle supply relay K5 electric discharge
It disconnects, power supply relay K3, K4 are disconnected, and the power supply of entire car controller and system low-voltage block terminal disconnects, so as to complete vehicle
Normal power down process.
In general, in vehicle travel process, exists because of driver or other people are suitable not according to the normal power on/off of vehicle
Abnormal power-down situation caused by sequence operation.When abnormal power-down happens, to make vehicle continue the traveling of safety, need
Guarantee various vehicle components continued power.Specifically, entire car controller is by CAN network and each component communication, if not receiving vehicle
When the confirmation signal of each component normal power down, with reference to Fig. 3, Fig. 4, a gear power supply signal and/or second gear electricity no matter can be detected
Source signal, delay cut-off signal still persistently export, thus ensure that the constant conduction state of relay K1, K3, K4, K5, into
And ensured the normal power supply of system low-voltage block terminal and entire car controller, so that vehicle high-low pressure component is working properly, it is ensured that
The driving safety of vehicle.
It should be noted that the present invention takes full advantage of the mode of control delay cut-off signal output timing, so that vehicle
The power supply of controller is in and is continuously turned on state, to realize double battery voltage platform fuel cell bus delay cut-offs
Control method.For example, in one embodiment, when vehicle normal power down, (driver first closes second gear controller and turns off a gear
Controller), achievable whole high-low pressure powers off work to vehicle in a short time, but fuel cell pile system from work normally to
Dead halt needs longest to reach the downtime of 30s, if not completing the case where system is closed in fuel cell pile system
Lower power-off suddenly, may cause the stack system lost of life and even damages, and the present invention can be by the function of delay cut-off, using holding
The delay cut-off signal of continuous output continues as stack system and provides power supply, powers off, avoid again after stack system completely closes
The occurrence of such.
The delay cut-off control circuit of the embodiment of the present invention is on the one hand according to the multiple relays of interrelated logic policy control
On the other hand normally-open normally-close interface communicates acquisition with high voltage components such as fuel cell systems by the CAN network of entire car controller
The mode of relevant information had not only completed the continued power to vehicle low-voltage distribution box and entire car controller, but also had realized in vehicle
Continue the function of power supply in the case of abnormal power-down to entire car controller, thus ensured service life and the normal operation of vehicle part,
Guarantee the high-low pressure electrical stability for having the fuel-cell vehicle of double battery voltage platforms, and in vehicle abnormality power-off
Guarantee the traffic safety of vehicle.
Although disclosed herein embodiment it is as above, the content is only to facilitate understanding the present invention and adopting
Embodiment is not intended to limit the invention.Any those skilled in the art to which this invention pertains are not departing from this
Under the premise of the disclosed spirit and scope of invention, any modification and change can be made in the implementing form and in details,
But scope of patent protection of the invention, still should be subject to the scope of the claims as defined in the appended claims.
Claims (10)
1. a kind of delay cut-off control circuit for fuel cell integral new-energy passenger, the delay cut-off control circuit have:
First low-tension supply unit interconnected and the second low-tension supply unit, wherein every group of low-tension supply unit respectively includes
Battery feed, the power control switch being connect with the battery feed, and the electricity being connect with the power control switch
Source relay, each power supply relay receive low-tension supply feedback control signal respectively, and the power supply control for combining corresponding group is opened
It closes, output numerical value different the first low-tension supply and the second low-tension supply provide vehicle low-tension supply for vehicle, wherein described
Low-tension supply feedback signal controls the on off operating mode of the power supply relay；
Delay cut-off control unit is connect with the first low-tension supply unit and the second low-tension supply unit, control
The on-off of one gear power supply signal, and according to the delay cut-off signal condition received, the low-tension supply feedback signal is exported, with
Realize the delay cut-off of the first low-tension supply unit and the second low-tension supply unit；
Entire car controller is connect with the delay cut-off control unit, when powering on according to the gear power supply received
The on off operating mode of signal exports the delay cut-off signal, and in normal lower electricity and abnormal power-down according to the gear power supply
The on off operating mode of signal, and the various vehicle components normal power down signal received, export the delay cut-off signal condition；
Entire car controller power control unit comprising first via full-vehicle control route and the second road full-vehicle control route, with institute
It states delay cut-off control unit to connect with the entire car controller, receives the gear power supply signal, and it is disconnected to export the delay
Electric signal provides single channel or double loop power supply using the voltage that the second low-tension supply unit exports for the entire car controller.
2. control circuit according to claim 1, which is characterized in that the entire car controller power control unit includes:
First via full-vehicle control route, with the second low-tension supply unit, the delay cut-off control unit and described whole
Vehicle controller connection, according to it is described one gear power supply signal on off operating mode realize circuit on-off so that entire car controller power supply to
The entire car controller power supply.
3. control circuit according to claim 1 or 2, which is characterized in that the entire car controller power control unit is also
Include:
Second road full-vehicle control route, with the second low-tension supply unit, the delay cut-off control unit and described whole
Vehicle controller connection, according to the state of the delay cut-off signal realize route on-off so that second low-tension supply to
The entire car controller power supply.
4. control circuit described in any one of claim 1 to 3, which is characterized in that
The vehicle power supply of the fuel cell integral new-energy passenger includes the vehicle low-tension supply and vehicle high voltage power supply, described whole
The offer needs of vehicle low-tension supply are completed at the same time to the first low-tension supply signal, the second low-tension supply signal and described
The output of entire car controller power supply signal；
The entire car controller controls the vehicle high voltage power supply.
5. control circuit according to claims 1 to 4, which is characterized in that
The first via full-vehicle control route includes first via full-vehicle control relay and the entire car controller current limliting that is attached thereto
Device；The second road full-vehicle control route include No. second vehicle supply relay, the second vehicle supply relay with
The entire car controller current-limiting apparatus connection.
6. control circuit according to any one of claims 1 to 5, which is characterized in that
The delay cut-off control unit include a gear power switch, with it is described one gear power switch connect one keep off power supply relay
Device and the delay cut-off relay being connect with the gear power supply relay.
7. control circuit described according to claim 1~any one of 6, which is characterized in that
The delay cut-off control unit can also reception delay power-off signal, according to the state of the delay cut-off signal control
The on-off of the one gear power supply relay or the delay cut-off relay, exports the low-tension supply feedback control signal.
8. a kind of delay cut-off control method for fuel cell integral new-energy passenger, the integral new-energy passenger has double batteries
Voltage platform and such as delay cut-off control circuit according to any one of claims 1 to 7, this method comprises the following steps:
In power up:
It is closed the power control switch of the first low-tension supply unit and the second low-tension supply unit, the delay relay
Device (K1) normally-closed contact closure, gear power supply relay (K2) obtain electric, normally opened contact closure, and are closed the gear electricity
Source switch (A2), the entire car controller obtain it is electric, the power supply of the first low-tension supply unit and second low-tension supply after
Electric appliance (K3, K4) closure, the vehicle low-tension supply obtains electric；
The entire car controller exports the delay cut-off signal, the time-delay relay after detecting a gear power supply signal
(K1) normally-closed contact disconnects, normally opened contact closure, and gear power supply relay (K2) normally opened contact disconnects, the vehicle power supply
It powers on.
9. control method according to claim 8, which is characterized in that this method further includes following steps:
In normal lower electric process:
Gear power switch (A2) is disconnected, the entire car controller is detecting the gear power supply signal disconnection and the vehicle
When each component normal power down signal, the delay cut-off signal, electricity under the vehicle power supply are disconnected.
10. control method according to claim 8 or claim 9, which is characterized in that this method further includes following steps:
During abnormal power-down:
The entire car controller detects that the gear power supply signal disconnects and export the delay cut-off signal, is prolonged by described
When cut-off relay (K1) normally opened contact be closed, guarantee various vehicle components normal operation；
After the entire car controller detects various vehicle components normal power down signal, the delay cut-off signal is disconnected, disconnects institute
Vehicle power supply is stated, the power control switch of the first low-tension supply unit and the second low-tension supply unit is disconnected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710408220.1A CN108973685B (en) | 2017-06-02 | 2017-06-02 | Delayed power-off control circuit and method for fuel cell new energy bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710408220.1A CN108973685B (en) | 2017-06-02 | 2017-06-02 | Delayed power-off control circuit and method for fuel cell new energy bus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108973685A true CN108973685A (en) | 2018-12-11 |
| CN108973685B CN108973685B (en) | 2021-08-31 |
Family
ID=64502560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710408220.1A Active CN108973685B (en) | 2017-06-02 | 2017-06-02 | Delayed power-off control circuit and method for fuel cell new energy bus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108973685B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109955811A (en) * | 2019-04-25 | 2019-07-02 | 安徽卓越电气有限公司 | A kind of defense controls circuit of pair of Vehicular accumulator cell |
| CN110356237A (en) * | 2019-06-27 | 2019-10-22 | 厦门金龙汽车新能源科技有限公司 | Electric control method, device and electric vehicle under the high pressure of electric vehicle |
| CN111016662A (en) * | 2019-12-27 | 2020-04-17 | 中通客车控股股份有限公司 | Fuel cell passenger car power-off control method and system |
| CN111717146A (en) * | 2020-06-04 | 2020-09-29 | 奇瑞商用车（安徽）有限公司 | Power supply control circuit and method for electric automobile without low-voltage storage battery |
| CN112078434A (en) * | 2020-09-29 | 2020-12-15 | 武汉海亿新能源科技有限公司 | Power-on and power-off control method and device for hydrogen fuel cell vehicle |
| CN112104037A (en) * | 2020-09-15 | 2020-12-18 | 北京百度网讯科技有限公司 | Power supply system, control method thereof, automatic driving vehicle and power supply management device |
| CN112519580A (en) * | 2019-09-17 | 2021-03-19 | 顺丰科技有限公司 | Vehicle control system and control method |
| CN114475249A (en) * | 2020-10-28 | 2022-05-13 | 湖南中车智行科技有限公司 | High-low voltage power-off time sequence control method, device and system of new energy vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1192072A (en) * | 1996-09-11 | 1998-09-02 | 郑炳天 | System for preventing vehicle battery from being excessively discharged |
| US20120319483A1 (en) * | 2011-06-20 | 2012-12-20 | Scruggs Michael K | Apparatus for bi-directional power switching in low voltage vehicle power distribution systems |
| CN103587484A (en) * | 2013-11-29 | 2014-02-19 | 重庆长安汽车股份有限公司 | Electric vehicle charging connection device |
| CN205220389U (en) * | 2015-11-20 | 2016-05-11 | 石家庄市均益电子有限公司 | Electric automobile electric leakage emergent power -off device |
| CN205736978U (en) * | 2016-06-12 | 2016-11-30 | 江苏卡威汽车研究院有限公司 | Electric installation under a kind of car load time delay |
-
2017
- 2017-06-02 CN CN201710408220.1A patent/CN108973685B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1192072A (en) * | 1996-09-11 | 1998-09-02 | 郑炳天 | System for preventing vehicle battery from being excessively discharged |
| US20120319483A1 (en) * | 2011-06-20 | 2012-12-20 | Scruggs Michael K | Apparatus for bi-directional power switching in low voltage vehicle power distribution systems |
| CN103587484A (en) * | 2013-11-29 | 2014-02-19 | 重庆长安汽车股份有限公司 | Electric vehicle charging connection device |
| CN205220389U (en) * | 2015-11-20 | 2016-05-11 | 石家庄市均益电子有限公司 | Electric automobile electric leakage emergent power -off device |
| CN205736978U (en) * | 2016-06-12 | 2016-11-30 | 江苏卡威汽车研究院有限公司 | Electric installation under a kind of car load time delay |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109955811A (en) * | 2019-04-25 | 2019-07-02 | 安徽卓越电气有限公司 | A kind of defense controls circuit of pair of Vehicular accumulator cell |
| CN110356237A (en) * | 2019-06-27 | 2019-10-22 | 厦门金龙汽车新能源科技有限公司 | Electric control method, device and electric vehicle under the high pressure of electric vehicle |
| CN110356237B (en) * | 2019-06-27 | 2021-12-17 | 厦门金龙汽车新能源科技有限公司 | Electric vehicle and high-voltage power-off control method and device thereof |
| CN112519580A (en) * | 2019-09-17 | 2021-03-19 | 顺丰科技有限公司 | Vehicle control system and control method |
| CN112519580B (en) * | 2019-09-17 | 2022-10-21 | 顺丰科技有限公司 | Vehicle control system and control method |
| CN111016662A (en) * | 2019-12-27 | 2020-04-17 | 中通客车控股股份有限公司 | Fuel cell passenger car power-off control method and system |
| CN111016662B (en) * | 2019-12-27 | 2021-10-26 | 中通客车控股股份有限公司 | Fuel cell passenger car power-off control method and system |
| CN111717146A (en) * | 2020-06-04 | 2020-09-29 | 奇瑞商用车（安徽）有限公司 | Power supply control circuit and method for electric automobile without low-voltage storage battery |
| CN112104037A (en) * | 2020-09-15 | 2020-12-18 | 北京百度网讯科技有限公司 | Power supply system, control method thereof, automatic driving vehicle and power supply management device |
| CN112078434A (en) * | 2020-09-29 | 2020-12-15 | 武汉海亿新能源科技有限公司 | Power-on and power-off control method and device for hydrogen fuel cell vehicle |
| CN112078434B (en) * | 2020-09-29 | 2024-05-24 | 武汉海亿新能源科技有限公司 | Power-on and power-off control method and device for hydrogen fuel cell vehicle |
| CN114475249A (en) * | 2020-10-28 | 2022-05-13 | 湖南中车智行科技有限公司 | High-low voltage power-off time sequence control method, device and system of new energy vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108973685B (en) | 2021-08-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108973685A (en) | A kind of delay cut-off control circuit and method for fuel cell integral new-energy passenger | |
| CN105128678A (en) | High-voltage power-on and power-off control system and control method for pure electric vehicle | |
| CN102069715A (en) | Running and charging interlocking device of electric vehicle | |
| CN213753998U (en) | Fill power supply circuit, charging device and fill electric pile of electric pile | |
| CN105459834A (en) | Multiple-protection high-voltage distribution box applied to new energy automobile | |
| CN112072740B (en) | Under-voltage starting circuit of low-voltage storage battery of electric automobile and control method thereof | |
| CN104820378A (en) | Train activation control circuit and system | |
| CN110341483B (en) | Detection system and detection method for motor controller of electric vehicle | |
| CN104777423A (en) | Method for detecting state of relay in high-voltage system of nickel-hydrogen hybrid electric vehicle | |
| CN109808547B (en) | Low-power-consumption power storage battery ignition power-on control circuit and control method | |
| CN203611766U (en) | High-voltage safety interlocking system for electric automobile | |
| CN106100024A (en) | A kind of rush-harvesting and rush-planting DC charging motor switching at runtime protection circuit | |
| CN112311261B (en) | Duplex starting control circuit of auxiliary inverter of railway vehicle | |
| CN109038695B (en) | Electric automobile charging system | |
| CN112133599A (en) | Electromagnetic type power master switch control circuit | |
| CN211809082U (en) | High-voltage interlocking circuit of solar cell system | |
| CN202421459U (en) | DC (direct current) control system for tests of electric automobile motor | |
| CN208760573U (en) | A kind of vehicle electric frost removal control system and car | |
| CN112721636A (en) | Electric motor coach power supply system, electric motor coach and method | |
| CN202694127U (en) | Controller area network (CAN) bus central electrical box | |
| CN102565706B (en) | DC control system for electric automobile motor testing | |
| CN201355451Y (en) | Vehicle-mounted antenna lifting mechanism control circuit | |
| CN212907557U (en) | Electromagnetic type power master switch control circuit | |
| CN105253027A (en) | Electric vehicle distributed energy supply system and work method for same | |
| CN109861375A (en) | Double-power supply switching device and automobile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |