CN109017315A - A kind of power supply Self-Protection Subsystem of hybrid vehicle and method - Google Patents
A kind of power supply Self-Protection Subsystem of hybrid vehicle and method Download PDFInfo
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- CN109017315A CN109017315A CN201810969274.XA CN201810969274A CN109017315A CN 109017315 A CN109017315 A CN 109017315A CN 201810969274 A CN201810969274 A CN 201810969274A CN 109017315 A CN109017315 A CN 109017315A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- 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
Abstract
The present invention relates to a kind of power supply Self-Protection Subsystem of hybrid vehicle and methods, wherein power supply Self-Protection Subsystem includes entire car controller, low-tension distribution box and high-tension distribution box；Entire car controller is electrically connected with low-tension distribution box, sequence power-on or lower electricity of the control low-voltage equipment by setting；Entire car controller is electrically connected with energy controller, is controlled high-tension apparatus by energy controller and is powered on or lower electricity；High-tension apparatus powers on after the completion of powering on low-voltage equipment by control；Make under high-tension apparatus after electricity low-voltage equipment by electric under the sequence of setting.The present invention avoids in upper and lower electric process by power supply self-shield and generates bigger dash current to low-voltage circuit, to damage low-voltage equipment；Avoid the electrification disjunction of high-pressure system relay there is a possibility that relay adhesion and lead to vehicle trouble；And by precharge, substep improves the supply current of high-tension apparatus, reduces the rush of current of high-tension apparatus, protect high voltage electric equipment.
Description
Technical field
The present invention relates to the power supply Self-Protection Subsystem of automatic driving vehicle field more particularly to a kind of hybrid vehicle and
Method.
Background technique
Various low pressure and high-tension apparatus are often equipped in order to realize the unmanned of hybrid vehicle, on vehicle, low pressure is set
Standby power-on and power-off simultaneously can generate bigger dash current to low-voltage circuit, while the electrification disjunction of high-pressure system relay is held very much
Easily make relay adhesion, lead to vehicle trouble, therefore, in order to protect the low pressure and high-tension circuit of hybrid power automatic driving vehicle
System, it is necessary to formulate suitable power-on and power-off strategy.
Summary of the invention
In view of above-mentioned analysis, the present invention is intended to provide a kind of power supply Self-Protection Subsystem of hybrid vehicle and method,
By electric process under logic power up and logic, the power supply of hybrid vehicle is effectively protected.
The purpose of the present invention is mainly achieved through the following technical solutions:
A kind of power supply Self-Protection Subsystem of hybrid vehicle, including, entire car controller, low-tension distribution box and high voltage power distribution
Case；
The entire car controller is electrically connected with the low-tension distribution box, for control connect with the low-tension distribution box it is low
Press sequence power-on or lower electricity of the electrical equipment by setting；
The entire car controller is electrically connected with the energy controller in the low voltage equipment, the energy controller with
High-tension distribution box connection powers on or lower electricity for controlling the high-tension apparatus connecting with the high-tension distribution box；
Under the control of the entire car controller, the low-voltage equipment is by high-tension apparatus after the completion of the sequence power-on of setting
Electricity；Low-voltage equipment presses electricity under the sequence set after electricity under the high-tension apparatus.
Further, the electric sequence set is powered on as low-tension distribution box, and planning system powers on, on sensory perceptual system
Electricity, final control system power on, and pilot, display and other low-voltage equipments power on；
The lower electricity sequence of the setting is electricity under planning system, electricity under sensory perceptual system, pilot, display and other equipment
Lower electricity, electricity under final control system, electricity under low-tension distribution box.
The planning system includes planning industrial personal computer, inertial navigation and satellite receiver；
The sensory perceptual system includes perception industrial personal computer, camera, millimetre-wave radar and laser radar；
The final control system includes electric machine controller, AMT controller, BMS controller, energy controller, APU control
Device and ESC controller.
Further, the low-tension distribution box includes at least one set of switch block；Each group includes a main switch group
Part and m facility switching component；Wherein,
Each facility switching component is connect with a low-voltage equipment, for controlling the low-voltage equipment power supply；
Facility switching component in the main switch component connection vehicle power supply and all groups, for controlling facility switching group
Part power supply.
Further, the main switch component is identical with facility switching modular construction, include relay J1, switch K1 and
Switch K2；
After the normally opened contact of the relay J1 is in parallel with switch K1 with the molecular normal open switch in common end, with switch 2
It is composed in series a switching group；
One pin of the relay J1 coil is grounded, another pin is electrically connected with entire car controller；Receive vehicle
The control signal of controller is closed normal open switch；
The original state respectively switched is that switch K1 is off-state, switch K2 is closed state, relay J1 normal open switch
For off-state.
Further, the high-tension distribution box includes positive and negative electrode pre-charging device；
The cathode pre-charging device is connected between on-board high-voltage power cathode and high voltage electric equipment cathode, including is supplied
Electric major loop relay J2, preliminary filling relay J3 and preliminary filling resistance R3；The normal open switch and preliminary filling resistance R3 of preliminary filling relay J3
It is composed in series series circuit, main circuit power supply relay J2 normal open switch and the series circuit compose in parallel parallel circuit, and
Join external terminal of the both ends of circuit as pre-charging device；
One pin ground connection of the main circuit power supply relay J2 coil, another pin are electrically connected with energy controller；
Control signal for receiving energy controller is closed normal open switch；
One pin ground connection of the preliminary filling relay J3 coil, another pin are electrically connected with energy controller；For connecing
The control signal for receiving energy controller is closed normal open switch；
The anode pre-charging device is connected between on-board high-voltage positive pole and high voltage electric equipment anode；Including supplying
Electric major loop relay J4, preliminary filling relay J5 and preliminary filling resistance R5；The normal open switch and preliminary filling resistance R of preliminary filling relay J3 is gone here and there
Connection composition series circuit, main circuit power supply relay J2 normal open switch and the series circuit compose in parallel parallel circuit, in parallel
External terminal of the both ends of circuit as pre-charging device；
One pin of the main circuit power supply relay J4 coil is grounded, another pin is electrically connected with energy controller
It connects；Control signal for receiving energy controller is closed normal open switch；
One pin of the preliminary filling relay J5 coil is grounded, another pin is electrically connected with energy controller；For
The control signal for receiving energy controller is closed normal open switch.
A kind of circuit self-protection method of hybrid power automatic driving vehicle, including power on self-protection method and lower electric self-insurance
Maintaining method；
The self-protection method that powers on includes:
Step S11, entire car controller receives low pressure and powers on instruction；
Step S12, entire car controller exports control instruction to low-tension distribution box, controls the switch block in low-tension distribution box
It is connected according to the electric sequence of setting, makes low-voltage equipment by the sequence power-on of setting；
Step S13, after low pressure powers on, entire car controller is connected to high pressure and powers on instruction, output control instruction to energy
Controller is pre-charged energy controller output order to high-tension distribution box；High-tension apparatus powers on after precharge；Energy
Amount controller powers on to entire car controller sending and completes feedback command.
The lower electric self-protection method includes；
Step S21, entire car controller receives electricity instruction under high pressure；
Step S22, entire car controller exports control instruction to energy controller, makes energy controller output order to high pressure
Distribution box makes electric under high-tension apparatus；
Step S23, under high pressure after electricity, entire car controller receives electricity instruction under low pressure, output control instruction to low pressure
Distribution box, the switch block controlled in low-tension distribution box are sequentially opened according to the lower electricity of setting, make low-voltage equipment by the suitable of setting
It is electric under sequence.
Further, the electric sequence set is powered on as low-tension distribution box；Planning system powers on；On sensory perceptual system
Electricity；Final control system powers on；Pilot, display and other equipment power on；
The lower electricity sequence of the setting is electricity under planning system；It is electric under sensory perceptual system；Pilot, display and other equipment
Lower electricity；It is electric under final control system；It is electric under low-tension distribution box.
The planning system includes planning industrial personal computer, inertial navigation and satellite receiver；
The sensory perceptual system includes perception industrial personal computer, camera, millimetre-wave radar and laser radar；
The final control system includes electric machine controller, AMT controller, BMS controller, energy controller, APU control
Device and ESC controller.
Further, it is specifically included in the step S13 for powering on self-protection method:
1) entire car controller is connected to high pressure and powers on instruction, output control instruction to energy controller；
2) energy controller output control instruction makes the normal open switch closure of the preliminary filling relay J3 of high-tension distribution box；
3) after setting delay time, energy controller output control instruction makes the preliminary filling relay J5's of high-tension distribution box
Normal open switch closure；
4) after the delay time of setting, energy controller output control instruction makes the major loop relay of high-tension distribution box
The normal open switch of J2, J4 are closed；
5) after the delay time of setting, energy controller output control instruction makes the normally opened of pre-charge-relay J3, J5
Switch disconnects.
6) high pressure powers on completion.
Further, the step S13 for powering on self-protection method further includes the starting of APU system high pressure, is specifically included:
After low pressure powers on, DC/AC module and DC/DC module are connected by energy controller output control instruction；
After the delay of setting, energy controller issues high pressure to APU controller and powers on instruction, starts APU system.
Further, method for electrically specifically includes under the step S22 middle-and-high voltage system of the lower electric self-protection method:
1) energy controller receives electric signal under high pressure；
2) after a predetermined delay, energy controller output control signal makes electric under DC/AC module and DC/DC module；
3) after a predetermined delay, energy controller issues electricity instruction under high pressure, the high pressure of APU control to APU controller
Equipment broken height pressure；
4) after a predetermined delay, energy controller output control signal make the positive and negative electrode major loop of high-tension distribution box after
The normal open switch of electric appliance disconnects；
5) electricity terminates under high pressure.
The present invention has the beneficial effect that:
In power up, after low-voltage equipment powers in order, then carries out high pressure and power on, avoid while powering on
Bigger dash current can be generated to low-voltage circuit, to damage low-voltage equipment；In high-tension apparatus power up, by pre-
Charging, substep improve the supply current of high-tension apparatus, reduce the rush of current of high-tension apparatus, protect high voltage electric equipment；
In lower electric process, lower electricity first is carried out to high-tension apparatus, after to electric under low voltage equipment sequence, avoid low pressure
Equipment can generate bigger dash current with electricity at present to low-voltage circuit, while avoid the electrification point of high-pressure system relay
It is disconnected there is a possibility that relay adhesion and lead to vehicle trouble.
Other features and advantages of the present invention will illustrate in the following description, also, partial become 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 written explanation
Specifically noted structure is achieved and obtained in book, claims and attached drawing.
Detailed description of the invention
Attached drawing is only used for showing the purpose of specific embodiment, and is not to be construed as limiting the invention, in entire attached drawing
In, identical reference symbol indicates identical component.
Fig. 1 is power supply Self-Protection Subsystem's composition schematic diagram in the embodiment of the present invention；
Fig. 2 is that the low-tension distribution box in the embodiment of the present invention forms connection schematic diagram；
Fig. 3 is that the switch block in the embodiment of the present invention forms connection schematic diagram；
Fig. 4 is that the high pressure in the embodiment of the present invention powers on part composition connection schematic diagram；
Fig. 5 is that the high-tension distribution box in the embodiment of the present invention forms connection schematic diagram；
Fig. 6 is to power on self-protection method flow chart in the embodiment of the present invention；
Fig. 7 is the lower electric self-protection method flow chart in the embodiment of the present invention.
Specific embodiment
Specifically describing the preferred embodiment of the present invention with reference to the accompanying drawing, wherein attached drawing constitutes the application a part, and
Together with embodiments of the present invention for illustrating the principle of the present invention.
A specific embodiment of the invention, discloses a kind of power supply Self-Protection Subsystem of hybrid vehicle,
Wherein, the electrical equipment that hybrid power automatic driving vehicle carries includes low-voltage equipment and high-tension apparatus；
Low-voltage equipment can be divided into planning system, sensory perceptual system, final control system, pilot, display and other are low
Press equipment etc.；
Wherein, planning system includes planning industrial personal computer, inertial navigation and satellite receiver；
The sensory perceptual system includes perception industrial personal computer, camera, millimetre-wave radar and laser radar；
The final control system includes entire car controller, electric machine controller, AMT controller, BMS controller, energy control
Device, APU controller and ESC controller processed.
High-tension apparatus includes that engine-generator set, DC/DC module (charging to low tension battery), DC/AC module (are given
Cooling system power supply), left motor, right motor.
As shown in Figure 1, power supply Self-Protection Subsystem disclosed by the embodiments of the present invention include entire car controller, low-tension distribution box and
High-tension distribution box；
Entire car controller is electrically connected with low-tension distribution box, for controlling the low-voltage equipment connecting with low-tension distribution box by setting
Sequence power-on or lower electricity；
Entire car controller is electrically connected with the energy controller in low-voltage equipment, and energy controller and the high-tension distribution box connect
It connects, after energy controller, which carries out low pressure, to be powered on, when the high pressure for receiving entire car controller powers on or lower electricity instructs, output order
Control high-tension apparatus powers on or lower electricity；
Under the control of the entire car controller, high-tension apparatus is powered on after the completion of the low-voltage equipment powers on；The high pressure
Low-voltage equipment presses electricity under the sequence set after electricity under equipment.
Special, the low pressure of entire car controller powers on instruction and is controlled by the low pressure upper electrical switch connecting with entire car controller；
Electricity instructs electric switch under by the low pressure connecting with entire car controller to be controlled under the low pressure of entire car controller；The high pressure of entire car controller
It powers on or lower electricity instruction is controlled by the up/down high-voltage switch gear on vehicle drive instrument panel.
Bigger dash current can be generated to low-voltage circuit in order to avoid powering on simultaneously,
The electric sequence set is powered on as low-tension distribution box, and planning system powers on, and sensory perceptual system powers on, final control system
It powers on, pilot, display and other low-voltage equipments power on；
The lower electricity sequence of setting is electric under planning system, electricity under sensory perceptual system, under pilot, display and other equipment
Electricity, electricity under final control system, electricity under low-tension distribution box.
Specifically, control that low-voltage equipment powers in low-tension distribution box is realized by the identical switch block of multiple structures
's；
Optionally, multiple switch component can be divided into N group, N >=1；Each group includes a main switch component and m equipment
The quantity m of switch block, facility switching component is determined according to the low-voltage equipment quantity that need to be connected；Wherein, each equipment is opened
The low-voltage equipment that is used to control that component is connect with a low-voltage equipment is closed to power；The main switch component connects vehicle power supply
With facility switching component in all groups, for controlling facility switching assembly power supply.
Special, multiple switch component is divided into 2 groups as shown in Figure 2, the control terminal of every group of facility switching component converges to
One aviation plug is exported from low-tension distribution box and is connect with entire car controller.
Special, as shown in figure 3, each switch block includes relay J1, switch K1 and switch K2；
After the normally opened contact of the relay J1 is in parallel with switch K1 with the molecular normal open switch in common end, with switch 2
It is composed in series a switching group；
One pin ground connection of coil of the relay J1, another pin are electrically connected by aviation plug and entire car controller
It connects；The control signal for receiving entire car controller is closed normal open switch；
The original state respectively switched is that switch K1 is off-state, switch K2 is closed state, relay J1 normal open switch
For off-state.
Purpose using switch K1 is, when relay J1 normally cannot make to close the switch, is by closure switch K1
Low-voltage equipment powers on；
Purpose using switch K2 is, when low-voltage equipment needs to force power-off, can be forced to equipment by switch K2
Power-off.
After the completion of each controller only in low-pressure system powers on, movement could be powered on to the subsequent high pressure of vehicle and controlled
System.For motor, when motor first upper high-voltage electricity upper low tension again, it will start protective program inside electric machine controller and make
Motor can not work.It is powered on it is therefore necessary to ensure low-pressure system completion carries out high pressure after powering on again.
As shown in figure 4, high pressure of the embodiment of the present invention, which powers on part, includes the energy hole in entire car controller, low-voltage equipment
Device, high-tension distribution box；
Wherein, entire car controller is connect with pilot, and the up/down high pressure button on pilot sends high to entire car controller
Pressure powers on electricity instruction under instruction or high pressure, when up/down high pressure button is allocated to " on ", sends high pressure to entire car controller and powers on finger
It enables；When up/down high pressure button is allocated to " off ", electricity instruction under high pressure is sent to entire car controller.
Entire car controller is connect with energy controller, according to the state of up/down high pressure button on pilot, controls energy control
High-tension distribution box is arrived in the corresponding instruction of device output processed, and control high-tension apparatus powers on or lower electricity；
Also, it controls the corresponding instruction of energy controller output and arrives APU controller, control APU system electrification or lower electricity.
As shown in figure 5, make in high tension loop electric current excessive in order to avoid high-pressure system directly powers on and damage element, this hair
The high-tension distribution box of bright embodiment includes positive and negative electrode pre-charging device；
Wherein, cathode pre-charging device is connected between on-board high-voltage power cathode and high voltage electric equipment cathode, including
Main circuit power supply relay J2, preliminary filling relay J3 and preliminary filling resistance R3；The normal open switch and preliminary filling resistance of preliminary filling relay J3
R3 is composed in series series circuit, and main circuit power supply relay J2 normal open switch and the series circuit compose in parallel parallel circuit,
External terminal of the both ends of parallel circuit as pre-charging device；
One pin of main circuit power supply relay J2 coil is grounded, another pin is electrically connected with energy controller；With
Normal open switch is closed in the control signal for receiving energy controller；
One pin of preliminary filling relay J3 coil is grounded, another pin is electrically connected with energy controller；For receiving
The control signal of energy controller is closed normal open switch.
Wherein, positive pre-charging device is connected between on-board high-voltage positive pole and high voltage electric equipment anode；Including
Main circuit power supply relay J4, preliminary filling relay J5 and preliminary filling resistance R5；The normal open switch and preliminary filling resistance of preliminary filling relay J5
R5 is composed in series series circuit, and main circuit power supply relay J4 normal open switch and the series circuit compose in parallel parallel circuit,
External terminal of the both ends of parallel circuit as pre-charging device；
One pin of main circuit power supply relay J4 coil is grounded, another pin is electrically connected with energy controller；With
Normal open switch is closed in the control signal for receiving energy controller；
One pin of preliminary filling relay J5 coil is grounded, another pin is electrically connected with energy controller；For receiving
The control signal of energy controller is closed normal open switch.
The embodiment of the invention also provides a kind of circuit self-protection methods of hybrid power automatic driving vehicle, including power on
Self-protection method and lower electric self-protection method；
As shown in fig. 6, the self-protection method that powers on includes:
Step S11, entire car controller receives low pressure and powers on instruction；
Step S12, entire car controller exports control instruction to low-tension distribution box, controls the switch block in low-tension distribution box
It is connected according to the electric sequence of setting, makes low-voltage equipment by the sequence power-on of setting；
Step S13, after low pressure powers on, entire car controller is connected to high pressure and powers on instruction, output control instruction to energy
Controller is pre-charged energy controller output order to high-tension distribution box；High-tension apparatus powers on after precharge；Energy
Amount controller powers on to entire car controller sending and completes feedback command.
In low pressure power up, in order to avoid all low-voltage equipments simultaneously power on can to low-voltage circuit generate it is bigger
Dash current, to damage low-voltage equipment；
Optionally, the electric sequence set is powered on as low-tension distribution box；Planning system powers on；Sensory perceptual system powers on；Bottom
Control system powers on；Pilot, display and other equipment power on；
Wherein, planning system includes planning industrial personal computer, inertial navigation and satellite receiver；
Sensory perceptual system includes perception industrial personal computer, camera, millimetre-wave radar and laser radar；
Final control system include electric machine controller, AMT controller, BMS controller, energy controller, APU controller and
ESC controller.
Special, the main switch component closure after entire car controller works 1S, in low-tension distribution box；
After main switch component closure 1S in low-tension distribution box, the facility switching component connecting with planning system equipment is closed
It closes, planning system equipment is powered；
Planning system equipment is powered after five minutes；After inertial navigation equipment stands alignment, opened with the indirect equipment of sensory perceptual system equipment
Component closure is closed, sensory perceptual system equipment is powered；
After sensory perceptual system equipment energization 1S, the facility switching component closure being connect with final control system equipment, bottom control
System equipment processed is powered；
After final control system equipment energization 1S, the facility switching group that is connect with pilot, display and other equipment
Part closure, pilot, display and other equipment power on.
Optionally, it powers on the high pressure in the step S13 of self-protection method and powers on and specifically include:
1) entire car controller is connected to high pressure and powers on instruction, the energy controller of output control instruction to final control system；
2) energy controller output control instruction makes the normal open switch closure of the preliminary filling relay J3 of high-tension distribution box；
3) after the delay time of setting, energy controller output control instruction makes the preliminary filling relay J5 of high-tension distribution box
Normal open switch closure；
4) after the delay time of setting, energy controller output control instruction makes the major loop relay of high-tension distribution box
The normal open switch of J2, J4 are closed；
5) after the delay time of setting, energy controller output control instruction makes the normally opened of pre-charge-relay J3, J5
Switch disconnects.
6) high pressure powers on completion.
Optionally, the delay time of above-mentioned setting is 1S.
Special, high pressure powers on instruction and is controlled by the up/down high pressure button on pilot, when up/down high pressure button is allocated to
When " on ", entire car controller is connected to high pressure and powers on instruction；Also, when low pressure powers on unfinished, high-tension apparatus cannot be powered on.
Further, the step S13 for powering on self-protection method further includes the starting of APU system high pressure, carries out energy and returns
It receives, specifically includes:
Energy controller exports control instruction and connects DC/AC module and DC/DC module；DC/DC module is connected low pressure and is stored
The charge circuit of battery, DC/AC module connect cooling system power supply；
After the delay time of setting, energy controller issues high pressure to APU controller and powers on instruction, starts APU system.
As shown in fig. 7, lower electricity self-protection method includes；
Step S21, entire car controller receives electricity instruction under high pressure；
Step S22, entire car controller exports control instruction to energy controller, makes energy controller output order to high pressure
Distribution box makes electric under high-tension apparatus；
Step S23, under high pressure after electricity, entire car controller receives electricity instruction under low pressure, output control instruction to low pressure
Distribution box, the switch block controlled in low-tension distribution box are sequentially opened according to the lower electricity of setting, make low-voltage equipment by the suitable of setting
It is electric under sequence.
Further, method for electrically specifically includes under the step S22 middle-and-high voltage system of lower electric self-protection method:
1) energy controller receives electric signal under high pressure；
2) after a predetermined delay, energy controller output control signal makes electric under DC/AC module and DC/DC module；
3) after a predetermined delay, energy controller issues electricity instruction under high pressure, the high pressure of APU control to APU controller
Equipment broken height pressure；
4) after a predetermined delay, energy controller output control signal make the positive and negative electrode major loop of high-tension distribution box after
The normal open switch of electric appliance disconnects；
5) electricity terminates under high pressure.
Optionally, above-mentioned scheduled delay time is 1S.
Special, electricity instruction is controlled by the up/down high pressure button on pilot under high pressure, when up/down high pressure button is allocated to
When " off ", entire car controller is connected to electricity instruction under high pressure；Also, when electricity does not complete under high pressure, low-voltage equipment cannot descend electricity.
Under low pressure in electric process, in order to avoid all low-voltage equipments can be bigger to low-voltage circuit generation with electricity at present
Dash current, to damage low-voltage equipment；
Optionally, the lower electricity sequence of the setting of low-voltage equipment is electricity under planning system；It is electric under sensory perceptual system；Pilot is shown
Show electric under device and other equipment；It is electric under final control system；It is electric under low-tension distribution box.Finally, electric under automatic driving vehicle vehicle.
Optionally, time delay interval electric under each system of low-voltage equipment is 1S.
In conclusion circuit Self-Protection Subsystem and the side of hybrid power automatic driving vehicle disclosed in facility example of the present invention
Method after low-voltage equipment powers in order, then carries out high pressure and powers in power up, avoids while powering on meeting pair
Low-voltage circuit generates bigger dash current, to damage low-voltage equipment；In high-tension apparatus power up, pass through preliminary filling
Electricity, substep improve the supply current of high-tension apparatus, reduce the rush of current of high-tension apparatus, protect high voltage electric equipment；
In lower electric process, lower electricity first is carried out to high-tension apparatus, after to electric under low voltage equipment sequence, avoid low pressure
Equipment can generate bigger dash current with electricity at present to low-voltage circuit, while avoid the electrification point of high-pressure system relay
It is disconnected there is a possibility that relay adhesion and lead to vehicle trouble.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of power supply Self-Protection Subsystem of hybrid vehicle, which is characterized in that including entire car controller, low-tension distribution box
And high-tension distribution box；
The entire car controller is electrically connected with the low-tension distribution box, is used for controlling the low pressure connecting with the low-tension distribution box
Sequence power-on or lower electricity of the electric equipment by setting；
The entire car controller is electrically connected with the energy controller in the low voltage equipment, the energy controller with it is described
High-tension distribution box connection, powers on or lower electricity for controlling the high-tension apparatus connecting with the high-tension distribution box；
Under the control of the entire car controller, the low-voltage equipment is powered on by high-tension apparatus after the completion of the sequence power-on of setting；
Low-voltage equipment presses electricity under the sequence set after electricity under the high-tension apparatus.
2. circuit Self-Protection Subsystem according to claim 1, which is characterized in that the electric sequence set is matched as low pressure
Electronic box powers on, and planning system powers on, and sensory perceptual system powers on, and final control system powers on, pilot, display and other low pressure
Device power；
The lower electricity sequence of the setting is electric under planning system, electricity under sensory perceptual system, under pilot, display and other equipment
Electricity, electricity under final control system, electricity under low-tension distribution box.
The planning system includes planning industrial personal computer, inertial navigation and satellite receiver；
The sensory perceptual system includes perception industrial personal computer, camera, millimetre-wave radar and laser radar；
The final control system include electric machine controller, AMT controller, BMS controller, energy controller, APU controller and
ESC controller.
3. circuit Self-Protection Subsystem according to claim 1, which is characterized in that the low-tension distribution box includes at least one set
Switch block；Each group includes a main switch component and m facility switching component；Wherein,
Each facility switching component is connect with a low-voltage equipment, for controlling the low-voltage equipment power supply；
Facility switching component in the main switch component connection vehicle power supply and all groups is supplied for controlling facility switching component
Electricity.
4. circuit Self-Protection Subsystem according to claim 3, which is characterized in that the main switch component and facility switching group
Part structure is identical, includes relay J1, switch K1 and switch K2；
After the normally opened contact of the relay J1 is in parallel with switch K1 with the molecular normal open switch in common end, connect with switch 2
Form a switching group；
One pin of the relay J1 coil is grounded, another pin is electrically connected with entire car controller；Receive full-vehicle control
The control signal of device is closed normal open switch；
The original state respectively switched is that switch K1 is off-state, switch K2 is closed state, relay J1 normal open switch is disconnected
Open state.
5. circuit Self-Protection Subsystem according to claim 1, which is characterized in that the high-tension distribution box includes positive and negative electrode
Pre-charging device；
The cathode pre-charging device is connected between on-board high-voltage power cathode and high voltage electric equipment cathode, including power supply master
Circuit relay J2, preliminary filling relay J3 and preliminary filling resistance R3；The normal open switch and preliminary filling resistance R3 of preliminary filling relay J3 is connected
Series circuit is formed, main circuit power supply relay J2 normal open switch and the series circuit compose in parallel parallel circuit, electricity in parallel
External terminal of the both ends on road as pre-charging device；
One pin ground connection of the main circuit power supply relay J2 coil, another pin are electrically connected with energy controller；For
The control signal for receiving energy controller is closed normal open switch；
One pin ground connection of the preliminary filling relay J3 coil, another pin are electrically connected with energy controller；For receiving energy
The control signal of amount controller is closed normal open switch；
The anode pre-charging device is connected between on-board high-voltage positive pole and high voltage electric equipment anode；It is led including power supply
Circuit relay J4, preliminary filling relay J5 and preliminary filling resistance R5；The normal open switch and preliminary filling resistance R series connection group of preliminary filling relay J3
At series circuit, main circuit power supply relay J2 normal open switch and the series circuit compose in parallel parallel circuit, parallel circuit
External terminal of the both ends as pre-charging device；
One pin of the main circuit power supply relay J4 coil is grounded, another pin is electrically connected with energy controller；With
Normal open switch is closed in the control signal for receiving energy controller；
One pin of the preliminary filling relay J5 coil is grounded, another pin is electrically connected with energy controller；For receiving
The control signal of energy controller is closed normal open switch.
6. a kind of circuit self-protection method using circuit Self-Protection Subsystem described in claim 1-5, which is characterized in that including upper
Electric self-protection method and lower electric self-protection method；
The self-protection method that powers on includes:
Step S11, entire car controller receives low pressure and powers on instruction；
Step S12, entire car controller output control instruction arrive low-tension distribution box, control low-tension distribution box in switch block according to
The electric sequence of setting is connected, and makes low-voltage equipment by the sequence power-on of setting；
Step S13, after low pressure powers on, entire car controller is connected to high pressure and powers on instruction, output control instruction to energy hole
Device is pre-charged energy controller output order to high-tension distribution box；High-tension apparatus powers on after precharge；Energy control
Device processed powers on to entire car controller sending and completes feedback command.
The lower electric self-protection method includes；
Step S21, entire car controller receives electricity instruction under high pressure；
Step S22, entire car controller exports control instruction to energy controller, makes energy controller output order to high voltage power distribution
Case makes electric under high-tension apparatus；
Step S23, under high pressure after electricity, entire car controller receives electricity instruction under low pressure, output control instruction to low-voltage distribution
Case, the switch block controlled in low-tension distribution box are sequentially opened according to the lower electricity of setting, make low-voltage equipment by under the sequence of setting
Electricity.
7. circuit self-protection method according to claim 6, which is characterized in that the electric sequence set is matched as low pressure
Electronic box powers on；Planning system powers on；Sensory perceptual system powers on；Final control system powers on；Pilot, display and other equipment
It powers on；
The lower electricity sequence of the setting is electricity under planning system；It is electric under sensory perceptual system；Under pilot, display and other equipment
Electricity；It is electric under final control system；It is electric under low-tension distribution box.
The planning system includes planning industrial personal computer, inertial navigation and satellite receiver；
The sensory perceptual system includes perception industrial personal computer, camera, millimetre-wave radar and laser radar；
The final control system include electric machine controller, AMT controller, BMS controller, energy controller, APU controller and
ESC controller.
8. circuit self-protection method according to claim 6, which is characterized in that described the step of powering on self-protection method
It is specifically included in S13:
1) entire car controller is connected to high pressure and powers on instruction, output control instruction to energy controller；
2) energy controller output control instruction makes the normal open switch closure of the preliminary filling relay J3 of high-tension distribution box；
3) after setting delay time, energy controller output control instruction make high-tension distribution box preliminary filling relay J5 it is normally opened
It closes the switch；
4) after the delay time of setting, energy controller output control instruction make high-tension distribution box major loop relay J2,
The normal open switch of J4 is closed；
5) after the delay time of setting, energy controller output control instruction makes the normal open switch of pre-charge-relay J3, J5
It disconnects.
6) high pressure powers on completion.
9. circuit self-protection method according to claim 8, which is characterized in that described the step of powering on self-protection method
S13 further includes the starting of APU system high pressure, is specifically included:
After low pressure powers on, DC/AC module and DC/DC module are connected by energy controller output control instruction；
After the delay of setting, energy controller issues high pressure to APU controller and powers on instruction, starts APU system.
10. circuit self-protection method according to claim 9, which is characterized in that the step of the lower electric self-protection method
Method for electrically specifically includes under S22 middle-and-high voltage system:
1) energy controller receives electric signal under high pressure；
2) after a predetermined delay, energy controller output control signal makes electric under DC/AC module and DC/DC module；
3) after a predetermined delay, energy controller issues electricity instruction under high pressure, the high-tension apparatus of APU control to APU controller
Broken height pressure；
4) after a predetermined delay, energy controller output control signal makes the positive and negative electrode major loop relay of high-tension distribution box
Normal open switch disconnect；
5) electricity terminates under high pressure.
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