CN103770660B - A kind of explosion-proof pure electric vehicle for coal mine operation - Google Patents
A kind of explosion-proof pure electric vehicle for coal mine operation Download PDFInfo
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- CN103770660B CN103770660B CN201410062211.8A CN201410062211A CN103770660B CN 103770660 B CN103770660 B CN 103770660B CN 201410062211 A CN201410062211 A CN 201410062211A CN 103770660 B CN103770660 B CN 103770660B
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- 239000003245 coal Substances 0.000 title claims abstract description 23
- 238000004880 explosion Methods 0.000 claims abstract description 55
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- 238000004891 communication Methods 0.000 claims description 30
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 26
- 229910001416 lithium ion Inorganic materials 0.000 claims description 26
- 238000012544 monitoring process Methods 0.000 claims description 22
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- 238000012423 maintenance Methods 0.000 claims description 8
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- 230000002159 abnormal effect Effects 0.000 claims description 3
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- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- 230000036541 health Effects 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 claims description 3
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- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000007726 management method Methods 0.000 description 26
- 230000000903 blocking effect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000013024 troubleshooting Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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Abstract
The present invention relates to a kind of explosion-proof pure electric vehicle for coal mine operation, it comprises H type vehicle frame, be fastenedly connected the drive axle in vehicle frame bottom-rear, be connected to the wheel at the semiaxis two ends of drive axle, be arranged at the explosion-proof power battery group of drive axle forward-and-rearward vehicle frame both sides, be arranged at the high and low voltage electric distribution explosion-proof tank of the vehicle frame side between operator's compartment and compartment, be arranged at braking in a turn and the cooling system motorized assembly of the vehicle frame opposite side between operator's compartment and compartment, and the traction electric machine between two transverse beams being arranged at vehicle frame front, the output shaft of traction electric machine is linked in sequence retarder, front propeller shaft, Parking Brake and rear propeller shaft, the mouth power of rear propeller shaft connects the input end of drive axle.The present invention innovates at entire automobile electric system and battery anti-explosion technical elements, the pure electric vehicle technology of ground run and coal mine operation requirement of explosion proof are combined, zero-emission can not only be accomplished, and can also ensure equally with diesel-powered vehicle to carry out routine use easily, meeting coal mine operation requirement, is the safe and reliable again vehicle of a high-tech.
Description
Technical field
The present invention relates to a kind of pure electric vehicle, particularly about a kind of explosion-proof pure electric vehicle for coal mine operation with I class and II class explosive-proof grade.
Background technology
At present, generally adopt diesel engine to be power for the mine car under colliery, because diesel engine has exhaust emissions, so to the environment under ore deposit, be unfavorable for the working environment of workman.Compared with fuel vehicle, battery-driven car has the advantages such as the little and maneuvering performance of noise and vibration is good.Although the pure electric automobile of ground run appears on the market, the explosion-proof pure electric automobile meeting coal mine operation is also in conceptual phase, not product place in operation.Because coal mine gas relative concentration is higher, therefore simply road traveling pure electric vehicle can not be paid and carry out explosion-proof repacking.At present, very high requirement is proposed to the explosion-proof of the pure electric vehicle for coal mine operation.Design and aly can meet requirement of explosion proof, and the explosion-proof pure electric vehicle meeting daily continual mileage is for energy-saving and emission-reduction and to improve the working environment of coal worker all most important.
Summary of the invention
For the problems referred to above, the object of this invention is to provide and a kind ofly can be applicable to I class and II class explosion-proof environment and meet the explosion-proof pure electric vehicle for coal mine operation of daily continual mileage requirement.
For achieving the above object, the present invention takes following technical scheme: a kind of explosion-proof pure electric vehicle for coal mine operation, it is characterized in that, this explosion-proof pure electric vehicle comprises: a H type vehicle frame, one is fastenedly connected the drive axle in described vehicle frame bottom-rear, two wheels being connected to the semiaxis two ends of described drive axle, some explosion-proof power battery groups being arranged at vehicle frame both sides described in described drive axle forward-and-rearward, the one high and low voltage electric distribution explosion-proof tank being arranged at the described vehicle frame side between operator's compartment and compartment, one braking in a turn and the cooling system motorized assembly being arranged at the described vehicle frame opposite side between described operator's compartment and compartment, and a traction electric machine between two transverse beams being arranged at described vehicle frame front, the output shaft of described traction electric machine is linked in sequence one speed reducer, one front propeller shaft, one Parking Brake and a rear propeller shaft, the mouth power of described rear propeller shaft connects the input end of described drive axle, described explosion-proof power battery group comprises a battery anti-explosion case and some lithium ion batteries be arranged in described battery anti-explosion case, battery management subsystem, temperature sensor, battery branch mailbox electromagnetic valve and battery branch mailbox equalized maintenance socket, and described battery management subsystem connects both positive and negative polarity and the temperature sensor of lithium ion battery described in each, the entire automobile electric system that described high and low voltage electric distribution explosion-proof tank comprises an electrical explosion proof case and is integrated in described electrical explosion proof case, described entire automobile electric system comprises entire car controller, traction motor controller, battery management system, helper motor controller, DC/DC high-low pressure converting unit, Insulation monitoring sensor, Smoke Detection sensor and charging socket, described entire car controller is electrically connected with described traction motor controller and battery management system respectively by CAN communication network, described battery management system is got in touch with by the battery management subsystem in CAN communication network and described explosion-proof power battery group, be responsible for voltage and the temperature information of lithium ion battery in the described explosion-proof power battery group of monitoring, be responsible for the described charge states of lithium ion battery of estimation and state of health simultaneously, alarm and protection is carried out to described explosion-proof power battery group, and with described entire car controller communication, described entire car controller also accesses the signal of the key gear of vehicle, Insulation monitoring sensor, Smoke Detection sensor and gas management sensor, described traction motor controller then accesses the signal of the gear selecting switch of vehicle, accelerator pedal sensor and brake pedal sensor, by CAN communication network, gear signal, acceleration pedal signal and brake pedal signal is sent to described entire car controller by described traction motor controller, described DC/DC high-low pressure converting unit is connected with the 24V A-battery of described explosion-proof power battery group and vehicle, described braking in a turn and cooling system motorized assembly comprise helper motor, hydraulic pressure four-in pump, cooling fan and cooling water radiator, described helper motor 1 is electrically connected the helper motor controller in described entire automobile electric system, and described helper motor controller directly controls described helper motor work by relay, one outputting axial power of described helper motor connects hydraulic pressure four-in pump, and another outputting axial power connects described cooling fan, cooling water radiator described in described cooling fan arranged outside, the running brake that the first Hydraulic Pump in described hydraulic pressure four-in pump is connected and installed in described vehicle wheel limit respectively by brake boost hydraulic tubing and the described Parking Brake be installed between forward and backward transmission shaft, to form braking hydraulic circuit, the second Hydraulic Pump in described hydraulic pressure four-in pump is connected and installed in the electric direction varying device below operator's compartment bearing circle by power steering hydraulic tubing, to form steering hydraulic loop, the third and fourth Hydraulic Pump in described hydraulic pressure four-in pump is connected traction electric machine refrigerant fluid I/O port and traction motor controller refrigerant fluid I/O port by traction electric machine cooling hydraulic tubing respectively with traction motor controller cooling hydraulic tubing, forms cooling water circulation loop respectively.
In a preferred embodiment, this explosion-proof pure electric vehicle has following two kinds of master modes:
1) when CAN communication network can normally work, described traction motor controller receives the gear signal of vehicle, acceleration pedal signal and brake pedal signal, does not then carry out any process, gives described entire car controller by CAN communication forwarded; Simultaneously, the data that described entire car controller sends according to described traction motor controller, battery management system, Insulation monitoring sensor, Smoke Detection sensor and gas management sensor, the running state of moment monitoring vehicle: when judging that vehicle operating is normal, carry out car load power demand according to the gear signal of vehicle, acceleration pedal signal and brake pedal signal and calculate traction electric machine torque-demand, and give described traction motor controller by CAN communication network by traction electric machine torque-demand command routing, and then control described traction electric machine work; When judging that vehicle operating is abnormal, described entire car controller then takes corresponding control method according to different alarm content;
2) when interference or mistake appear in CAN communication network, described traction motor controller no longer sends to described entire car controller after receiving the gear signal of vehicle, acceleration pedal signal and brake pedal signal; Now, described traction motor controller sends torque-demand order according to the gear signal of vehicle, acceleration pedal signal and brake pedal signal to described traction electric machine voluntarily, controls traction electric machine work.
In a preferred embodiment, described battery anti-explosion case adopts " upper and lower " double-decker layout, and wherein lower box is the battery cavities of separate flameproof, and described lithium ion battery and temperature sensor are only arranged in inside; Upper box is placed separately is adapter cavity, equipment cavity and wire connection cavity three cavitys, and described adapter cavity and described lower box UNICOM, in described lower box, the positive and negative busbar of lithium ion battery, voltage acquisition line and temperature acquisition line receive described equipment cavity by connecting terminals through walls explosion-proof between described adapter cavity and equipment cavity; Described battery management subsystem, battery branch mailbox electromagnetic valve and battery branch mailbox equalized maintenance socket is arranged in described equipment cavity; In described equipment cavity, the positive and negative busbar of lithium ion battery, the power cable of battery management subsystem and CAN communication cable receive described wire connection cavity by the connecting terminals explosion-proof through walls between described equipment cavity and wire connection cavity, and are connected to outside described battery anti-explosion case by the anti-explosion loudspeaker mouth on described wire connection cavity.
In a preferred embodiment, described entire automobile electric system is divided into 24V low-voltage control circuit and 360V high voltage power circuit: when the key of vehicle is in 1 file location, relay J 1 adhesive, described entire car controller, traction motor controller and battery management system power on, and described Insulation monitoring sensor, smoke monitoring sensor, gas monitor sensor and loudspeaker and rain brush power on; When the key of vehicle is in 2 file location, relay J 2 adhesive, described traction electric machine, helper motor, hydraulic pressure four-in pump and DC/DC high-low pressure converting unit power on.
In a preferred embodiment, described running brake adopts the wet multi-disk brake of binary channel hydraulic assisting brake; Described Parking Brake adopts the Wet-type multi-disc centre brake of hydraulic booster spring energy-storage, and is handled by hand control valve (HCV); Described electric direction varying device adopts circulating ball servo-hydraulic power steering.
In a preferred embodiment, described electrical explosion proof case is a rectangular box structure, and its side door adopts quick opening mechanism to coordinate explosion-proof faying face, and has pressure power-off interlock design of opening the door; The top cover of described electrical explosion proof case can be opened, and is convenient to arrange each electrical equipment; In described electrical explosion proof case, the opposite side relative with described side door is provided with a flame proof wiring cabin, and the side cover corresponding with described flame proof wiring cabin also can be opened, and is convenient to wiring and debugging; Described electrical explosion proof case is also provided with a water-cooling base plate, to carry out radiating and cooling to each electrical equipment in described electrical explosion proof case; Described electrical explosion proof case inside is provided with some reinforced ribs.
In a preferred embodiment, the side door of described electrical explosion proof case is also provided with LCDs, described LCDs is connected with described entire car controller by serial ports, described entire car controller sends operating data to described LCDs by serial ports, to show each parameter state of vehicle in real time.
The present invention is owing to taking above technical scheme, it has the following advantages: 1, the present invention adopts integrated type electric fluid pressure type force aid system for braking and steering boost system, a four-in pump is driven by an explosion-proof helper motor, for force aid system for braking, steering boost system and 2 line cooling systems provide power, the pressure of each pipeline can regulate as required respectively.The power take-off shaft of helper motor is except driving four-in pump, and other end connects the cooling fan of car load radiator.The structure design of this integrated form decreases the quantity needing the explosion-proof helper motor driven, and compact conformation is simple, effectively can reduce system and take up space and overall component weight, be convenient to arrange on car load.2, all subsystems of the present invention are provided with flameproof enclosure, and its degree of protection at least reaches IP55 level, have good explosion-proof performance.3, entire car controller of the present invention, electric machine controller, connected by CAN communication between battery management system and car load instrument, traffic safety is affected when breaking down for preventing CAN network, the present invention will speed up pedal, brake pedal, the important informations such as gear selecting switch are linked into motor controller by analog quantity, by CAN network, above-mentioned important information is sent to entire car controller by motor controller, when there is interference or mistake in CAN network, directly vehicle operation is controlled by motor controller, therefore ensure that vehicle safe driving is to trouble-shooting place, avoid blocking tunnel.4, the present invention is integrated into unified for charged each unit in an explosion-proof tank, has saved arrangement space, has alleviated explosion-proof tank weight.And the system integration together, be convenient to maintenance and protection.This explosion-resistant enclosure degree of protection is at least IP55, by effectively isolated for the parts of methane gas and the inside, thus can stop the possibility of gas explosion.5, battery pack explosion-proof tank of the present invention, is placed on lithium ion battery in explosion-proof tank, meets the security protection requirement of colliery for well dynamic lithium ion battery, and can realize vehicle-mounted charge.6, the present invention is except the indicator lamp of driver's instrument and necessity, also developed LCDs, each parameter state of vehicle can be shown in real time, as motor torque, battery electric quantity, battery temperature etc., and there is alarm display function, if there is emergency situation, which kind of alerting signal can show immediately is, enable the fault of the rapid positioned vehicle of staff, keep in repair in time.7, due to high and low voltage electric distribution Operation system setting GB charging socket of the present invention, key 3 grades of controls, smog alarm, self-extinguishing, Insulation monitoring, external control binary pair, precharge loop, slug relay and general supply disconnector, therefore, it is possible to realize Car Battery fast charge, low pressure, high pressure, startup, battery management system can be forced to block high pressure under emergency, free setting delay time, can the function such as whole electrical source of power of hand off vehicle.
In sum, this explosion-proof pure electric vehicle has innovation at system integration method and battery anti-explosion technical elements, the pure electric vehicle technology of ground run and coal mine operation requirement of explosion proof are combined, zero-emission can not only be accomplished, and can also ensure equally with diesel-powered vehicle to carry out routine use easily, meeting coal mine operation requirement, is the safe and reliable again vehicle of a high-tech.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, detailed description is carried out to the present invention.But should be appreciated that being provided only of accompanying drawing understands the present invention better, they not should be understood to limitation of the present invention.
Fig. 1 is general arrangement schematic of the present invention;
Fig. 2 is the front view of battery anti-explosion case of the present invention;
Fig. 3 is the birds-eye view of battery anti-explosion case of the present invention;
Fig. 4 is the structural representation of entire automobile electric system of the present invention;
Fig. 5 is the circuit connection diagram of entire automobile electric system of the present invention;
Fig. 6 is the structural representation of braking in a turn of the present invention and cooling system motorized assembly;
Fig. 7 is the structural representation of electrical explosion proof case of the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in detail.
As shown in Figure 1, the present invention includes a H type vehicle frame 1, the bottom-rear of vehicle frame 1 is fastenedly connected a drive axle 2, and the semiaxis two ends of drive axle 2 connect a wheel 3 respectively.A traction electric machine 4 is provided with between two transverse beams in vehicle frame 1 front, the output shaft of traction electric machine 4 is linked in sequence one speed reducer 5, front propeller shaft 6, Parking Brake 7 and a rear propeller shaft 8, and the mouth power of rear propeller shaft 8 connects the input end of drive axle 2.Respectively be provided with an explosion-proof power battery group 9 being positioned at drive axle 2 forward-and-rearward vehicle frame 1 both sides, be respectively provided with a high and low voltage electric distribution explosion-proof tank 10 and a braking in a turn and cooling system motorized assembly 11 in vehicle frame 1 both sides between operator's compartment and compartment.
As shown in Figure 2, explosion-proof power battery group 9 comprises a battery anti-explosion case 9-1 and some lithium ion battery (not shown)s be arranged in this battery anti-explosion case 9-1.Battery anti-explosion case 9-1 adopts " upper and lower " double-decker layout, and wherein lower box 9-2 is the battery cavities of separate flameproof, and the associated components such as lithium ion battery and temperature sensor is only arranged in inside.As shown in Figure 3, upper box 9-3 is placed separately is adapter cavity 9-4, equipment cavity 9-5 and wire connection cavity 9-6 tri-cavitys, wherein adapter cavity 9-4 and lower box 9-2 UNICOM, in lower box 9-2, the positive and negative busbar of lithium ion battery, voltage acquisition line and temperature acquisition line receive equipment cavity 9-5 by connecting terminals through walls explosion-proof between adapter cavity 9-4 and equipment cavity 9-5.The electric component (not shown)s such as battery management subsystem, battery branch mailbox electromagnetic valve and battery branch mailbox equalized maintenance socket are furnished with in equipment cavity 9-5, and battery management subsystem connects both positive and negative polarity and the temperature sensor of each lithium ion battery, to realize the functions such as the collection of cell pressure and temperature information, casing heavy-current control, battery system heat management and the safety precaution of battery system electricity.And the positive and negative busbar of lithium ion battery, the power cable of battery management subsystem and CAN communication cable receive wire connection cavity 9-6 by the connecting terminals explosion-proof through walls between equipment cavity 9-5 and wire connection cavity 9-6 in equipment cavity 9-5, and be connected to outside battery anti-explosion case 9-1 by the anti-explosion loudspeaker mouth 9-7 on wire connection cavity 9-6.
As shown in Figure 4, Figure 5, high and low voltage electric distribution explosion-proof tank 10 comprises an electrical explosion proof case 10-1 and is integrated in the entire automobile electric system in this electrical explosion proof case 10-1, and entire automobile electric system comprises entire car controller 10-2, traction motor controller 10-3, battery management system 10-4, helper motor controller 10-5, DC/DC high-low pressure converting unit 10-6, Insulation monitoring sensor 10-7, Smoke Detection sensor 10-8 and charging socket 10-9.Entire car controller 10-2 is electrically connected with traction motor controller 10-3 and battery management system 10-4 respectively by CAN communication network.Battery management system 10-4 is also got in touch with by the battery management subsystem in CAN communication network and explosion-proof power battery group 9; be responsible for the information such as the voltage of lithium ion battery in monitoring explosion-proof power battery group 9 and temperature; be responsible for estimation charge states of lithium ion battery SOC and state of health SOH simultaneously; alarm and protection is carried out to explosion-proof power battery group 9, and with entire car controller 10-2 communication.DC/DC high-low pressure converting unit 10-6 is connected with the 24V A-battery of explosion-proof power battery group 9 and vehicle, it is responsible for the power supply of each low-voltage electrical parts of car load, the high-tension current of explosion-proof power battery group 9 is converted into low tension required on vehicle, supplies each low-voltage electrical parts respectively.
In order to prevent affecting traffic safety during CAN communication network failure, the signal of the key gear of vehicle, Insulation monitoring sensor 10-7, Smoke Detection sensor 10-8 and gas management sensor 13 is linked into entire car controller 10-2 by the present invention, and the signal of the gear selecting switch of vehicle, accelerator pedal sensor and brake pedal sensor is linked into traction motor controller 10-3, by CAN communication network, above-mentioned signal is sent to entire car controller 10-2 by traction motor controller 10-3, thus makes the present invention have following two kinds of master modes:
1) when CAN communication network can normally work, traction motor controller 10-3 receives the gear signal of vehicle, acceleration pedal signal and brake pedal signal, does not then carry out any process, by CAN communication forwarded to entire car controller 10-2.Simultaneously, entire car controller 10-2 is according to traction motor controller 10-3, battery management system 10-4, Insulation monitoring sensor 10-7, the data that Smoke Detection sensor 10-8 and gas management sensor 13 send, the running state of moment monitoring vehicle: when judging that vehicle operating is normal, according to the gear signal of vehicle, acceleration pedal signal and brake pedal signal carry out car load power demand and calculate traction electric machine torque-demand, and pass through CAN communication network by traction electric machine torque-demand command routing to traction motor controller 10-3, and then control traction electric machine 4 works, such as make traction electric machine 4 outputting power or carry out Brake energy recovery when car retardation, for explosion-proof power battery group 9 is charged, when judging that vehicle operating is abnormal (as gas alarming, battery is overheated, motor overheating, electricity are too low), entire car controller 10-2 then takes corresponding control method according to different alarm content, the operations such as such as parking immediately, time limit parking or reduction horsepower output.
2) when interference or mistake appear in CAN communication network, traction motor controller 10-3 no longer sends to entire car controller 10-2 after receiving the gear signal of vehicle, acceleration pedal signal and brake pedal signal.Now, traction motor controller 10-3 sends torque-demand order according to the gear signal of vehicle, acceleration pedal signal and brake pedal signal to traction electric machine 4 voluntarily, control traction electric machine 4 to work, ensure that vehicle safe driving is to trouble-shooting place, avoid blocking tunnel.
In a preferred embodiment, as shown in Figure 5, entire automobile electric system is divided into 24V low-voltage control circuit and 360V high voltage power circuit: when the key of vehicle is in 1 file location, relay J 1 adhesive, the control units such as entire car controller 10-2, traction motor controller 10-3 and battery management system 10-4 power on, and the low-voltage electrical parts such as Insulation monitoring sensor 10-7, smoke monitoring sensor 10-8, gas monitor sensor 13, loudspeaker and rain brush 14 power on; When the key of vehicle is in 2 file location, relay J 2 adhesive, the high-voltage electrical apparatus parts such as traction electric machine 4, helper motor 11-2, hydraulic pressure four-in pump 11-3, DC/DC high-low pressure converting unit 10-6 power on, and now vehicle can normally work.
As shown in Figure 6, braking in a turn and cooling system motorized assembly 11 comprise helper motor 11-1, hydraulic pressure four-in pump 11-2, cooling fan 11-3 and cooling water radiator 11-4.Wherein, helper motor 11-1 is electrically connected the helper motor controller 10-5 in entire automobile electric system, helper motor controller 10-5 directly controls helper motor 11-1 by relay J 2 and works, and namely starts working after relay J 2 adhesive when the key of vehicle is in 2 file location.One outputting axial power of helper motor 11-1 connects hydraulic pressure four-in pump 11-2, another outputting axial power connects cooling fan 11-3, cooling fan 11-3 arranged outside cooling water radiator 11-4, like this when cooling fan 11-3 rotates, cooling water radiator 11-4 can be helped to carry out heat transfer to environment quickly.The first Hydraulic Pump in hydraulic pressure four-in pump 11-2 is connected and installed in the running brake (not shown) that limit taken turns by wheel 3 and the Parking Brake 7 be installed between forward and backward transmission shaft 6,8 respectively by brake boost hydraulic tubing, to form braking hydraulic circuit, meet the electric booster braking user demand of vehicle; The second Hydraulic Pump in hydraulic pressure four-in pump 11-2 is connected and installed in the electric direction varying device (not shown) below operator's compartment bearing circle by power steering hydraulic tubing, to form steering hydraulic loop, meets the electric power steering user demand of vehicle; The third and fourth Hydraulic Pump in hydraulic pressure four-in pump 11-2 is connected traction electric machine refrigerant fluid I/O port and traction motor controller refrigerant fluid I/O port by traction electric machine cooling hydraulic tubing respectively with traction motor controller cooling hydraulic tubing, form cooling water circulation loop respectively, to ensure traction electric machine 4 and the normal operating temperature of traction motor controller 10-3.
In the above-described embodiments, running brake adopts the wet multi-disk brake of binary channel hydraulic assisting brake; Parking Brake 7 adopts the Wet-type multi-disc centre brake of hydraulic booster spring energy-storage, and is handled by hand control valve (HCV); Electric direction varying device adopts circulating ball servo-hydraulic power steering.
As shown in Figure 7, electrical explosion proof case 10-1 is a rectangular box structure, and its side door 10-11 adopts quick opening mechanism to coordinate explosion-proof faying face, and has pressure power-off interlock design of opening the door.The top cover 10-12 of electrical explosion proof case 10-1 can open, and is convenient to arrange each electrical equipment.In electrical explosion proof case 10-1, the opposite side relative with side door 10-11 is provided with a flame proof wiring cabin 10-13, and the side cover 10-14 corresponding with flame proof wiring cabin 10-13 also can open, and is convenient to wiring and debugging.Electrical explosion proof case 10-1 is also provided with a water-cooling base plate 10-15, carries out radiating and cooling for each electrical equipment in electrical explosion proof case 10-1.Electrical explosion proof case 10-1 inside is provided with some reinforced ribs, under the prerequisite of proof strength, alleviate steel plate thickness.
In a preferred embodiment, the side door 10-11 of electrical explosion proof case 10-1 is also provided with LCDs 12(not shown), LCDs 12 is connected (as shown in Figure 4) with entire car controller 10-2 by serial ports, entire car controller 10-2 sends operating data to LCDs 12 by serial ports, to show each parameter state of vehicle in real time, as traction electric machine torque, battery electric quantity and battery temperature etc., facilitate staff's breakdown judge and maintenance.
The various embodiments described above are only for illustration of the present invention; wherein the structure of each parts, connection mode and manufacture craft etc. all can change to some extent; every equivalents of carrying out on the basis of technical solution of the present invention and improvement, all should not get rid of outside protection scope of the present invention.
Claims (9)
1. for an explosion-proof pure electric vehicle for coal mine operation, it is characterized in that, this explosion-proof pure electric vehicle comprises:
One H type vehicle frame,
One is fastenedly connected the drive axle in described vehicle frame bottom-rear,
Two wheels being connected to the semiaxis two ends of described drive axle,
Some explosion-proof power battery groups being arranged at vehicle frame both sides described in described drive axle forward-and-rearward,
The one high and low voltage electric distribution explosion-proof tank being arranged at the described vehicle frame side between operator's compartment and compartment,
One braking in a turn and the cooling system motorized assembly being arranged at the described vehicle frame opposite side between described operator's compartment and compartment, and
One is arranged at the traction electric machine between two transverse beams in described vehicle frame front, the output shaft of described traction electric machine is linked in sequence one speed reducer, a front propeller shaft, a Parking Brake and a rear propeller shaft, and the mouth power of described rear propeller shaft connects the input end of described drive axle;
Described explosion-proof power battery group comprises a battery anti-explosion case and some lithium ion batteries be arranged in described battery anti-explosion case, battery management subsystem, temperature sensor, battery branch mailbox electromagnetic valve and battery branch mailbox equalized maintenance socket, and described battery management subsystem connects both positive and negative polarity and the temperature sensor of lithium ion battery described in each;
The entire automobile electric system that described high and low voltage electric distribution explosion-proof tank comprises an electrical explosion proof case and is integrated in described electrical explosion proof case, described entire automobile electric system comprises entire car controller, traction motor controller, battery management system, helper motor controller, DC/DC high-low pressure converting unit, Insulation monitoring sensor, Smoke Detection sensor and charging socket; Described entire car controller is electrically connected with described traction motor controller and battery management system respectively by CAN communication network, described battery management system is got in touch with by the battery management subsystem in CAN communication network and described explosion-proof power battery group, be responsible for voltage and the temperature information of lithium ion battery in the described explosion-proof power battery group of monitoring, be responsible for the described charge states of lithium ion battery of estimation and state of health simultaneously, alarm and protection is carried out to described explosion-proof power battery group, and with described entire car controller communication; Described entire car controller also accesses the signal of the key gear of vehicle, Insulation monitoring sensor, Smoke Detection sensor and gas management sensor, described traction motor controller then accesses the signal of the gear selecting switch of vehicle, accelerator pedal sensor and brake pedal sensor, by CAN communication network, gear signal, acceleration pedal signal and brake pedal signal is sent to described entire car controller by described traction motor controller; Described DC/DC high-low pressure converting unit is connected with the 24V A-battery of described explosion-proof power battery group and vehicle;
Described braking in a turn and cooling system motorized assembly comprise helper motor, hydraulic pressure four-in pump, cooling fan and cooling water radiator; Described helper motor is electrically connected the helper motor controller in described entire automobile electric system, and described helper motor controller directly controls described helper motor work by relay; One outputting axial power of described helper motor connects hydraulic pressure four-in pump, and another outputting axial power connects described cooling fan, cooling water radiator described in described cooling fan arranged outside; The running brake that the first Hydraulic Pump in described hydraulic pressure four-in pump is connected and installed in described vehicle wheel limit respectively by brake boost hydraulic tubing and the described Parking Brake be installed between forward and backward transmission shaft, to form braking hydraulic circuit; The second Hydraulic Pump in described hydraulic pressure four-in pump is connected and installed in the electric direction varying device below operator's compartment bearing circle by power steering hydraulic tubing, to form steering hydraulic loop; The third and fourth Hydraulic Pump in described hydraulic pressure four-in pump is connected traction electric machine refrigerant fluid I/O port and traction motor controller refrigerant fluid I/O port by traction electric machine cooling hydraulic tubing respectively with traction motor controller cooling hydraulic tubing, forms cooling water circulation loop respectively.
2. a kind of explosion-proof pure electric vehicle for coal mine operation as claimed in claim 1, it is characterized in that, this explosion-proof pure electric vehicle has following two kinds of master modes:
1) when CAN communication network can normally work, described traction motor controller receives the gear signal of vehicle, acceleration pedal signal and brake pedal signal, does not then carry out any process, gives described entire car controller by CAN communication forwarded; Simultaneously, the data that described entire car controller sends according to described traction motor controller, battery management system, Insulation monitoring sensor, Smoke Detection sensor and gas management sensor, the running state of moment monitoring vehicle: when judging that vehicle operating is normal, carry out car load power demand according to the gear signal of vehicle, acceleration pedal signal and brake pedal signal and calculate traction electric machine torque-demand, and give described traction motor controller by CAN communication network by traction electric machine torque-demand command routing, and then control described traction electric machine work; When judging that vehicle operating is abnormal, described entire car controller then takes corresponding control method according to different alarm content;
2) when interference or mistake appear in CAN communication network, described traction motor controller no longer sends to described entire car controller after receiving the gear signal of vehicle, acceleration pedal signal and brake pedal signal; Now, described traction motor controller sends torque-demand order according to the gear signal of vehicle, acceleration pedal signal and brake pedal signal to described traction electric machine voluntarily, controls traction electric machine work.
3. a kind of explosion-proof pure electric vehicle for coal mine operation as claimed in claim 1, it is characterized in that, described battery anti-explosion case adopts " upper and lower " double-decker layout, and wherein lower box is the battery cavities of separate flameproof, and described lithium ion battery and temperature sensor are only arranged in inside; Upper box is placed separately is adapter cavity, equipment cavity and wire connection cavity three cavitys, and described adapter cavity and described lower box UNICOM, in described lower box, the positive and negative busbar of lithium ion battery, voltage acquisition line and temperature acquisition line receive described equipment cavity by connecting terminals through walls explosion-proof between described adapter cavity and equipment cavity; Described battery management subsystem, battery branch mailbox electromagnetic valve and battery branch mailbox equalized maintenance socket is arranged in described equipment cavity; In described equipment cavity, the positive and negative busbar of lithium ion battery, the power cable of battery management subsystem and CAN communication cable receive described wire connection cavity by the connecting terminals explosion-proof through walls between described equipment cavity and wire connection cavity, and are connected to outside described battery anti-explosion case by the anti-explosion loudspeaker mouth on described wire connection cavity.
4. a kind of explosion-proof pure electric vehicle for coal mine operation as claimed in claim 2, it is characterized in that, described battery anti-explosion case adopts " upper and lower " double-decker layout, and wherein lower box is the battery cavities of separate flameproof, and described lithium ion battery and temperature sensor are only arranged in inside; Upper box is placed separately is adapter cavity, equipment cavity and wire connection cavity three cavitys, and described adapter cavity and described lower box UNICOM, in described lower box, the positive and negative busbar of lithium ion battery, voltage acquisition line and temperature acquisition line receive described equipment cavity by connecting terminals through walls explosion-proof between described adapter cavity and equipment cavity; Described battery management subsystem, battery branch mailbox electromagnetic valve and battery branch mailbox equalized maintenance socket is arranged in described equipment cavity; In described equipment cavity, the positive and negative busbar of lithium ion battery, the power cable of battery management subsystem and CAN communication cable receive described wire connection cavity by the connecting terminals explosion-proof through walls between described equipment cavity and wire connection cavity, and are connected to outside described battery anti-explosion case by the anti-explosion loudspeaker mouth on described wire connection cavity.
5. a kind of explosion-proof pure electric vehicle for coal mine operation as claimed in claim 1 or 2 or 3 or 4, it is characterized in that, described entire automobile electric system is divided into 24V low-voltage control circuit and 360V high voltage power circuit: when the key of vehicle is in 1 file location, relay J 1 adhesive, described entire car controller, traction motor controller and battery management system power on, and described Insulation monitoring sensor, smoke monitoring sensor, gas monitor sensor and loudspeaker and rain brush power on; When the key of vehicle is in 2 file location, relay J 2 adhesive, described traction electric machine, helper motor, hydraulic pressure four-in pump and DC/DC high-low pressure converting unit power on.
6. a kind of explosion-proof pure electric vehicle for coal mine operation as claimed in claim 1 or 2 or 3 or 4, is characterized in that, described running brake adopts the wet multi-disk brake of binary channel hydraulic assisting brake; Described Parking Brake adopts the Wet-type multi-disc centre brake of hydraulic booster spring energy-storage, and is handled by hand control valve (HCV); Described electric direction varying device adopts circulating ball servo-hydraulic power steering.
7. a kind of explosion-proof pure electric vehicle for coal mine operation as claimed in claim 5, is characterized in that, described running brake adopts the wet multi-disk brake of binary channel hydraulic assisting brake; Described Parking Brake adopts the Wet-type multi-disc centre brake of hydraulic booster spring energy-storage, and is handled by hand control valve (HCV); Described electric direction varying device adopts circulating ball servo-hydraulic power steering.
8. a kind of explosion-proof pure electric vehicle for coal mine operation as described in claim 1 or 2 or 3 or 4 or 7, it is characterized in that, described electrical explosion proof case is a rectangular box structure, and its side door adopts quick opening mechanism to coordinate explosion-proof faying face, and has pressure power-off interlock design of opening the door; The top cover of described electrical explosion proof case can be opened, and is convenient to arrange each electrical equipment; In described electrical explosion proof case, the opposite side relative with described side door is provided with a flame proof wiring cabin, and the side cover corresponding with described flame proof wiring cabin also can be opened, and is convenient to wiring and debugging; Described electrical explosion proof case is also provided with a water-cooling base plate, to carry out radiating and cooling to each electrical equipment in described electrical explosion proof case; Described electrical explosion proof case inside is provided with some reinforced ribs.
9. a kind of explosion-proof pure electric vehicle for coal mine operation as claimed in claim 8, it is characterized in that, the side door of described electrical explosion proof case is also provided with LCDs, described LCDs is connected with described entire car controller by serial ports, described entire car controller sends operating data to described LCDs by serial ports, to show each parameter state of vehicle in real time.
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