CN106904155A - Electric-wheel truck electrichydraulic control hydraulic accumulation energy regenerative braking and auxiliary drive - Google Patents
Electric-wheel truck electrichydraulic control hydraulic accumulation energy regenerative braking and auxiliary drive Download PDFInfo
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- CN106904155A CN106904155A CN201710149491.XA CN201710149491A CN106904155A CN 106904155 A CN106904155 A CN 106904155A CN 201710149491 A CN201710149491 A CN 201710149491A CN 106904155 A CN106904155 A CN 106904155A
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- 230000001172 regenerating effect Effects 0.000 title claims abstract description 42
- 238000009825 accumulation Methods 0.000 title 1
- 238000004146 energy storage Methods 0.000 claims abstract description 47
- 230000001133 acceleration Effects 0.000 claims abstract description 17
- 238000006243 chemical reaction Methods 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 claims description 23
- 238000000926 separation method Methods 0.000 claims description 6
- 239000002828 fuel tank Substances 0.000 claims description 2
- 230000008929 regeneration Effects 0.000 claims 2
- 238000011069 regeneration method Methods 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 5
- 230000009467 reduction Effects 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 29
- 230000000994 depressogenic effect Effects 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 3
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- 238000005265 energy consumption Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
- B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
- B60T1/10—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels by utilising wheel movement for accumulating energy, e.g. driving air compressors
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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
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/24—Electrodynamic brake systems for vehicles in general with additional mechanical or electromagnetic braking
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T10/00—Control or regulation for continuous braking making use of fluid or powdered medium, e.g. for use when descending a long slope
- B60T10/02—Control or regulation for continuous braking making use of fluid or powdered medium, e.g. for use when descending a long slope with hydrodynamic brake
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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
- B60L2200/00—Type of vehicles
- B60L2200/36—Vehicles designed to transport cargo, e.g. trucks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T2270/00—Further aspects of brake control systems not otherwise provided for
- B60T2270/60—Regenerative braking
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- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
本发明针对现有的电动轮卡车下坡、减速和制动过程中利用电阻栅吸收动能，能量浪费严重的缺点，公开了一种电动轮卡车电液控制液压储能再生制动与辅助驱动装置。该装置能够把电动轮卡车下坡、减速和制动过程中的能量进行回收，然后在电动轮卡车上坡、加速和起动过程中再给其提供储存的能量，起到节能减排的作用，提高矿车的续驶里程，同时延长原车的发动机、发电机和电动机的使用寿命。该装置包括：机械能液压能变换装置、气控制装置。
Aiming at the shortcomings of the existing electric-wheel trucks that use resistance grids to absorb kinetic energy during downhill, deceleration, and braking processes, resulting in serious energy waste, the invention discloses an electro-hydraulic control hydraulic energy storage regenerative braking and auxiliary drive device for electric-wheel trucks . The device can recover the energy of the electric wheel truck during the downhill, deceleration and braking process, and then provide the stored energy to the electric wheel truck during the uphill, acceleration and starting process, which plays a role in energy saving and emission reduction. Improve the mileage of the mine car, and at the same time extend the service life of the engine, generator and motor of the original car. The device includes: a mechanical energy hydraulic energy conversion device and a gas control device.
Description
技术领域technical field
本发明涉及一种电动轮卡车电液控制液压储能再生制动与辅助驱动装置，属于电动轮卡车再生储能技术领域，特别是涉及一种大型非公路车辆再生储能技术领域。The invention relates to an electric-wheel truck electro-hydraulic control hydraulic energy storage regenerative braking and auxiliary drive device, which belongs to the technical field of electric-wheel truck regenerative energy storage, and in particular relates to the technical field of regenerative energy storage for large off-road vehicles.
背景技术Background technique
电动轮卡车是露天矿大型运输车辆，具有满载上坡和空载下坡的运行特点。目前，国内外的电动轮卡车电气制动方式普遍采用耗能式，即制动电阻栅制动。这种电气制动主要应用在减速时、下坡和制动时控制车速，这时牵引电动机实际就变成了发电机，把自卸车在惯性力作用下或下坡状态的动能转变成电能，加到制动电阻栅上并以热能的形式消散在大气中，所以能量浪费极其严重。回收这部分再生能量是电动轮卡车的一个重要研究方向，现阶段电动轮卡车的储能研究仍然还是空白。The electric wheel truck is a large-scale transport vehicle for open-pit mines, which has the operating characteristics of going uphill with a full load and downhill without a load. At present, the electrical braking method of electric wheel trucks at home and abroad generally adopts the energy consumption type, that is, braking resistor grid braking. This kind of electric braking is mainly used to control the speed of the vehicle during deceleration, downhill and braking. At this time, the traction motor actually becomes a generator, which converts the kinetic energy of the dump truck under the action of inertial force or downhill state into electric energy. It is added to the brake resistor grid and dissipated in the atmosphere in the form of heat energy, so the energy waste is extremely serious. Recovering this part of regenerative energy is an important research direction of electric wheel trucks, and the research on energy storage of electric wheel trucks is still blank at this stage.
现阶段电动轮卡车采用电阻栅制动，在减速和下长坡时产生的能量都被浪费掉，不但不节能而且还引起其它系统耗能，采用本发明专利的电动轮卡车电液控制液压储能再生制动与辅助驱动装置，把制动时产生的电能合理利用起来，达到节约能源的目的。在扩展再生制动使用的同时，可以减少机械制动的使用，从而降低车辆的维护工作量，并且改善车辆运行环境，减少行驶过程中的污染，提高司机工作的舒适度。At present, electric wheel trucks use resistance grid braking, and the energy generated when decelerating and descending long slopes is wasted, which not only does not save energy, but also causes energy consumption in other systems. The regenerative braking and auxiliary driving device can rationally utilize the electric energy generated during braking to achieve the purpose of saving energy. While expanding the use of regenerative braking, the use of mechanical braking can be reduced, thereby reducing the maintenance workload of the vehicle, improving the operating environment of the vehicle, reducing pollution during driving, and improving the comfort of the driver.
发明内容Contents of the invention
目的：为了克服现有技术中存在的电动轮卡车采用电阻栅制动，在下坡、减速和制动时产生的能量都被以热量的形式散失掉，浪费严重的弊端，本发明提供一种电动轮卡车电液控制液压储能再生制动与辅助驱动装置。Purpose: In order to overcome the drawbacks in the prior art that electric wheel trucks adopt resistance grid braking, the energy generated during downhill, deceleration and braking is dissipated in the form of heat and is seriously wasted. Wheel truck electro-hydraulic control hydraulic energy storage regenerative braking and auxiliary drive device.
技术方案：为解决上述技术问题，本发明采用的技术方案为：Technical solution: In order to solve the above-mentioned technical problems, the technical solution adopted in the present invention is:
电动轮卡车电液控制液压储能再生制动与辅助驱动装置，包括：机械能液压能变换装置、电气控制装置，所述机械能液压能变换装置包括：第一离合器(6)、第一泵马达(5)、单向阀（4）、蓄能器（1）、电磁换向阀(21)、油箱（20），电磁换向阀(21)通油口P与第一泵马达(5)下端进油口相连接，第一泵马达(5)上端出油口一路通过单向阀（4）与蓄能器（1）相连接，第一泵马达(5)上端出油口另一路与电磁换向阀(21)通油口A相连接；第一泵马达(5)输出端通过轴（14）与第一离合器(6)相连接；所述单向阀（4）与蓄能器（1）之间通过管路与电磁换向阀(21)通油口B相连接；所述电磁换向阀(21)通油口T与油箱（20）相连接；所述电气控制装置分别与控制电磁换向阀(21)和第一离合器(6)相连接，用于控制控制电磁换向阀(21)工作在左位或者右位，实现切换第一泵马达(5)工作在泵或者马达状态；第一离合器(6)与第一车轮（7）啮合或者分离。The electric wheel truck electro-hydraulic control hydraulic energy storage regenerative braking and auxiliary drive device includes: a mechanical energy hydraulic energy conversion device and an electrical control device. The mechanical energy hydraulic energy conversion device includes: a first clutch (6), a first pump motor ( 5), one-way valve (4), accumulator (1), electromagnetic reversing valve (21), oil tank (20), electromagnetic reversing valve (21) oil port P and the lower end of the first pump motor (5) The oil inlet is connected, the oil outlet on the upper end of the first pump motor (5) is connected to the accumulator (1) through the check valve (4), and the other oil outlet on the upper end of the first pump motor (5) is connected to the solenoid The reversing valve (21) is connected to the oil port A; the output end of the first pump motor (5) is connected to the first clutch (6) through the shaft (14); the one-way valve (4) is connected to the accumulator ( 1) are connected to the oil port B of the electromagnetic reversing valve (21) through a pipeline; the oil port T of the electromagnetic reversing valve (21) is connected to the fuel tank (20); the electrical control device is connected to The control electromagnetic reversing valve (21) is connected with the first clutch (6), and is used to control the electromagnetic reversing valve (21) to work in the left position or the right position, so as to realize switching the first pump motor (5) to work in the pump or Motor state: the first clutch (6) engages or separates from the first wheel (7).
所述电气控制装置包括：原车电传动系统（9）、液压储能再生制动控制系统（24）、离合信号传感器（25），制动信号传感器（26），加速信号传感器（27），启动停止开关（22），前行倒车开关（23），所述启动停止开关（22）、前行倒车开关（23）与原车电传动系统（9）相连接；所述离合信号传感器（25）、制动信号传感器（26）、加速信号传感器（27）分别与原车电传动系统（9）、液压储能再生制动控制系统（24）；所述原车电传动系统（9）与液压储能再生制动控制系统（24）相连接；所述液压储能再生制动控制系统（24）与电磁换向阀(21)控制端相连接，用于控制控制电磁换向阀(21)工作在左位或者右位，实现切换第一泵马达(5)工作在泵或者马达状态；所述原车电传动系统（9）用于控制发电机工作与离合器啮合与分离；所述离合信号传感器（25）、制动信号传感器（26）、加速信号传感器（27）的输入端分别与离合器脚踏板（28）、制动器脚踏板（29），加速器脚踏板（30）相连接。The electrical control device includes: the original vehicle electric transmission system (9), hydraulic energy storage regenerative braking control system (24), clutch signal sensor (25), brake signal sensor (26), acceleration signal sensor (27), Start stop switch (22), forward reversing switch (23), the start stop switch (22), forward reversing switch (23) are connected with the original vehicle electric transmission system (9); the clutch signal sensor (25 ), the brake signal sensor (26), the acceleration signal sensor (27) are respectively connected with the original vehicle electric transmission system (9), the hydraulic energy storage regenerative braking control system (24); the original vehicle electric transmission system (9) and The hydraulic energy storage regenerative braking control system (24) is connected; the hydraulic energy storage regenerative braking control system (24) is connected to the control end of the electromagnetic reversing valve (21), and is used to control the electromagnetic reversing valve (21) ) works in the left position or the right position to realize switching the first pump motor (5) to work in the pump or motor state; the original vehicle electric transmission system (9) is used to control the generator work and the clutch engagement and separation; the clutch The input terminals of signal sensor (25), brake signal sensor (26) and acceleration signal sensor (27) are respectively connected with clutch pedal (28), brake pedal (29) and accelerator pedal (30) .
作为优选方案，还包括：第二离合器(12)、第二泵马达(13)，第二泵马达(13) 下端进油口与电磁换向阀(21)通油口P相连接，第二泵马达(13)上端出油口与电磁换向阀(21)通油口A相连接，第二泵马达(13) 输出端通过轴（19）与第二离合器(12)相连接。As a preferred solution, it also includes: a second clutch (12), a second pump motor (13), the oil inlet at the lower end of the second pump motor (13) is connected with the oil port P of the electromagnetic reversing valve (21), and the second The oil outlet at the upper end of the pump motor (13) is connected with the oil port A of the electromagnetic reversing valve (21), and the output end of the second pump motor (13) is connected with the second clutch (12) through the shaft (19).
作为优选方案，还包括：溢流阀（3），所述蓄能器（1）与单向阀（4）之间连接有溢流阀（3），溢流阀（3）输出端连接有油箱（20），用于蓄能器（1）里的压力超过设定的压力时,溢流阀（3）将压力油卸荷回油箱（20）。As a preferred solution, it also includes: an overflow valve (3), an overflow valve (3) is connected between the accumulator (1) and the one-way valve (4), and the output end of the overflow valve (3) is connected with The oil tank (20) is used for when the pressure in the accumulator (1) exceeds the set pressure, the overflow valve (3) unloads the pressure oil back to the oil tank (20).
作为优选方案，还包括：压力表（2），所述蓄能器（1）与单向阀（4）之间连接有压力表（2），用于显示蓄能器（1）内的压力情况。As a preferred solution, it also includes: a pressure gauge (2), a pressure gauge (2) is connected between the accumulator (1) and the one-way valve (4), used to display the pressure in the accumulator (1) Condition.
作为优选方案，还包括压力继电器（31），所述蓄能器（1）与单向阀（4）之间连接有压力继电器（31），所述压力继电器（31）的信号输出端与液压储能再生制动控制系统（24）相连接，用于向液压储能再生制动控制系统（24）发送压力过大或过小信号，从而通过液压储能再生制动控制系统（24）向原车电传动系统（9）发出信号，用于控制离合器啮合与分离。As a preferred solution, it also includes a pressure relay (31), a pressure relay (31) is connected between the accumulator (1) and the one-way valve (4), and the signal output terminal of the pressure relay (31) is connected to the hydraulic pressure The energy storage regenerative braking control system (24) is connected, and is used to send a signal of excessive pressure or too low pressure to the hydraulic energy storage regenerative braking control system (24), so that the hydraulic energy storage regenerative braking control system (24) sends a signal to the original The vehicle electric transmission system (9) sends out a signal for controlling the engagement and separation of the clutch.
有益效果：本发明提供的电动轮卡车电液控制液压储能再生制动与辅助驱动装置，能够把电动轮卡车在下坡、减速和制动时产生的能量采用液压储能装置进行回收再利用。即在下坡、减速和制动过程中进行能量回收，而在上坡、加速和起动过程中再提供能量，从而杜绝采用电阻栅制动，能量都被以热量的形式浪费掉的弊端，从而达到节能减排的效果。Beneficial effects: The electric wheel truck electro-hydraulic control hydraulic energy storage regenerative braking and auxiliary drive device provided by the present invention can recover and reuse the energy generated by the electric wheel truck when going downhill, decelerating and braking by using the hydraulic energy storage device. That is, energy recovery is performed during downhill, deceleration and braking, and energy is provided during uphill, acceleration and starting, so as to eliminate the disadvantages of using resistance grid braking and energy being wasted in the form of heat, so as to achieve The effect of energy saving and emission reduction.
附图说明Description of drawings
图1为本发明的结构示意图;Fig. 1 is a structural representation of the present invention;
图2为电磁换向阀结构示意图。Figure 2 is a schematic diagram of the structure of the electromagnetic reversing valve.
具体实施方式detailed description
下面结合附图对本发明作更进一步的说明。The present invention will be further described below in conjunction with the accompanying drawings.
如图1、图2所示，一种电动轮卡车电液控制液压储能再生制动与辅助驱动装置，车辆正常行驶时，即车辆处在平路前行状态，不需要储能和放能时，应释放离合器脚踏板（28），此时第一离合器（6）和第二离合器（12）都是分离的；车辆非正常行驶时，即车辆处在下坡、减速和制动状态，或处在上坡、加速和起动状态时，此时需要储能或放能，应踩下离合器脚踏板（28），则此时第一离合器（6）和第二离合器（12）都会啮合。As shown in Figure 1 and Figure 2, an electro-hydraulic control hydraulic energy storage regenerative braking and auxiliary drive device for electric wheel trucks. When the vehicle is running normally, that is, the vehicle is in the state of moving forward on a flat road, and does not need energy storage and energy discharge. , the clutch pedal (28) should be released, at this time the first clutch (6) and the second clutch (12) are disengaged; Or in the state of going uphill, accelerating and starting, it is necessary to store or release energy at this time, and the clutch pedal (28) should be stepped on, then the first clutch (6) and the second clutch (12) will be engaged at this time .
当踩下离合器脚踏板（28）时，离合信号通过离合信号传感器（25）分别送到原车电传动系统（9）和液压储能再生制动控制系统（24）中。如果离合器脚踏板（28）踩下后配合踩下的是制动器脚踏板（29），那么制动信号将通过制动信号传感器（26）分别送到原车电传动系统（9）和液压储能再生制动控制系统（24）中，原车电传动系统（9）控制第一电动机（8）、第二电动机（10）的电源频率降低，降低的幅度根据制动器脚踏板（29）踩下的幅度来决定，下坡和减速时根据需要的速度控制踩下的幅度。制动停车时可以完全踩下，此时原车电传动系统（9）切断第一电动机（8）、第二电动机（10）的励磁电源。当制动器脚踏板（29）踩下时，接受到制动信号的液压储能再生制动控制系统（24）将控制电磁换向阀（21）失电，电磁换向阀工作在左位；如果离合器脚踏板（28）踩下后配合踩下的是加速器脚踏板（30），那么加速信号将通过加速信号传感器（27）分别送到原车电传动系统（9）和液压储能再生制动控制系统（24）中，原车电传动系统（9）控制第一电动机（8）、第二电动机（10）的电源频率升高，升高的幅度根据加速器脚踏板（30）踩下的幅度来决定，上坡、加速和起动时根据需要的速度控制踩下的幅度。当加速器脚踏板（30）踩下时，接收到加速信号的液压储能再生制动控制系统（24）将控制电磁换向阀（21）得电，电磁换向阀（21）工作在右位。When the clutch pedal (28) is depressed, the clutch signal is sent to the original vehicle electric transmission system (9) and the hydraulic energy storage regenerative braking control system (24) respectively through the clutch signal sensor (25). If the brake pedal (29) is stepped on after the clutch pedal (28) is depressed, the brake signal will be sent to the original vehicle electric transmission system (9) and hydraulic pressure through the brake signal sensor (26). In the energy storage regenerative braking control system (24), the original vehicle electric transmission system (9) controls the power supply frequency of the first electric motor (8) and the second electric motor (10) to decrease, and the reduction range depends on the brake pedal (29) The pedaling range is determined, and the pedaling range is controlled according to the required speed when going downhill and decelerating. The brake can be fully stepped on when parking, and at this moment, the electric transmission system (9) of the original car cuts off the excitation power supply of the first motor (8) and the second motor (10). When the brake pedal (29) is stepped on, the hydraulic energy storage regenerative braking control system (24) that receives the braking signal will control the electromagnetic reversing valve (21) to lose power, and the electromagnetic reversing valve will work in the left position; If the accelerator pedal (30) is stepped on after the clutch pedal (28) is depressed, the acceleration signal will be sent to the original vehicle electric drive system (9) and hydraulic energy storage respectively through the acceleration signal sensor (27) In the regenerative braking control system (24), the original vehicle electric transmission system (9) controls the power supply frequency of the first motor (8) and the second motor (10) to increase, and the increase range depends on the accelerator pedal (30) The stepping range is determined, and the stepping range is controlled according to the required speed when going uphill, accelerating and starting. When the accelerator pedal (30) is stepped on, the hydraulic energy storage regenerative braking control system (24) that receives the acceleration signal will control the electromagnetic reversing valve (21) to be energized, and the electromagnetic reversing valve (21) will work on the right bit.
一．正常平路前行模式one. Normal flat road forward mode
启动/停止开关（22）打到启动位置时, 前行/倒车开关（23）打到前行位置时，离合器脚踏板（28）和制动器脚踏板（29）都未踩下, 如前所述第一离合器（6）和第二离合器（12）是分离的，原车电传动系统（9）通过第一电动机（8）、轴（15）驱动第一车轮（7），同时通过第二电动机（10）、轴（16）驱动第二车轮（11），矿车处于前进状态。矿车的运行速度大小可以通过加速器脚踏板（30）进行控制，根据加速器脚踏板（30）踩下的力度，通过加速信号传感器（27）送到原车电传动系统（9）中进行调速控制。When the start/stop switch (22) is at the start position, when the forward/reverse switch (23) is at the forward position, neither the clutch pedal (28) nor the brake pedal (29) is depressed, as before The first clutch (6) and the second clutch (12) are separated, and the original vehicle electric transmission system (9) drives the first wheel (7) through the first motor (8) and the shaft (15), and at the same time, through the second Two electric motors (10), the axle (16) drive the second wheel (11), and the mine car is in the forward state. The running speed of the mine car can be controlled by the accelerator pedal (30), according to the strength of the accelerator pedal (30), it is sent to the original car electric drive system (9) through the acceleration signal sensor (27) Speed control.
二．正常平路倒车模式two. Normal flat road reversing mode
启动/停止开关（22）打到启动位置时, 前行/倒车开关（23）打到倒车位置时，离合器脚踏板（28）和制动器脚踏板（29）都未踩下, 如前所述第一离合器（6）和第二离合器（12）是分离的，原车电传动系统（9）通过第一电动机（8）、轴（15）驱动第一车轮（7），同时通过第二电动机（10）、轴（16）驱动第二车轮（11），矿车处于后退状态。矿车的运行速度大小可以通过加速器脚踏板（30）进行控制，根据加速器脚踏板（30）踩下的力度，通过加速信号传感器（27）送到原车电传动系统（9）中进行调速控制。在倒车模式下,禁止进行储能和放能。When the start/stop switch (22) is at the start position, when the forward/reverse switch (23) is at the reverse position, neither the clutch pedal (28) nor the brake pedal (29) is depressed, as before The above-mentioned first clutch (6) and second clutch (12) are separated, and the original vehicle electric drive system (9) drives the first wheel (7) through the first motor (8) and the shaft (15), and at the same time drives the first wheel (7) through the second Motor (10), shaft (16) drive the second wheel (11), and the mine car is in backward state. The running speed of the mine car can be controlled by the accelerator pedal (30), according to the strength of the accelerator pedal (30), it is sent to the original car electric drive system (9) through the acceleration signal sensor (27) Speed control. In reverse mode, energy storage and energy discharge are prohibited.
三．下坡、减速和制动模式three. Downhill, deceleration and braking modes
当车辆处于下坡、减速和制动时，释放加速器脚踏板，踩下离合器脚踏板（28）和制动器脚踏板（29），如前所述此时第一离合器（6）和第二离合器（12）都啮合，制动信号通过制动信号传感器（26）送到液压储能再生制动控制系统（24）中，液压储能再生制动控制系统（24）控制电磁换向阀（21）失电，电磁换向阀（22）工作在左位。下坡、减速和制动时矿车在惯性力的作用下将动能通过第一车轮（7）、轴（18）、第一离合器（6）、轴（14）传给第一泵马达（5）（此时第一泵马达（5）工作在泵模式），右边传动系与左边传动系传动过程相同。油箱（20）中的液压油经过电磁换向阀（21）通油口T、通油口P的进入第一泵马达（5）下端进油口，再由上端出油口进入单向阀（4）,最终进入蓄能器（1）中。如果蓄能器（1）里的压力超过设定的压力时,溢流阀（3）就会打开,将压力油卸荷回油箱（20），此时压力表（2）显示的压力超限，应该松开离合器脚踏板（28），如果仍然踩下离合器脚踏板（28），此时压力继电器（31）向液压储能再生制动控制系统（24）发出信号，再由原车电传动系统（9）控制第一离合器（6）和第二离合器（12）分离，以免过压后储能时间过长，液压系统发热，与此同时压力继电器（31）会给原车电传动系统（9）传递信号，使原车电传动系统（9）开启自身的电气制动系统，利用矿车原来的电气制动系统吸收制动能量。如果要停车应利用原车的机械制动系统，一直踩制动器脚踏板直到停车为止。When the vehicle is downhill, decelerating and braking, the accelerator pedal is released, and the clutch pedal (28) and brake pedal (29) are pressed down. As previously mentioned, the first clutch (6) and the second clutch Both clutches (12) are engaged, and the braking signal is sent to the hydraulic energy storage regenerative braking control system (24) through the braking signal sensor (26), and the hydraulic energy storage regenerative braking control system (24) controls the electromagnetic reversing valve (21) power failure, electromagnetic reversing valve (22) works in the left position. When going downhill, decelerating and braking, the mine car transmits kinetic energy to the first pump motor (5) through the first wheel (7), shaft (18), first clutch (6) and shaft (14) under the action of inertial force ) (the first pump motor (5) is working in the pump mode at this time), the transmission process of the right drive train is the same as that of the left drive train. The hydraulic oil in the oil tank (20) enters the oil inlet at the lower end of the first pump motor (5) through the oil port T and the oil port P of the solenoid reversing valve (21), and then enters the check valve ( 4), and finally enter the accumulator (1). If the pressure in the accumulator (1) exceeds the set pressure, the overflow valve (3) will open to unload the pressure oil back to the oil tank (20), at this time the pressure displayed by the pressure gauge (2) exceeds the limit , the clutch pedal (28) should be released. If the clutch pedal (28) is still depressed, the pressure relay (31) will send a signal to the hydraulic energy storage regenerative braking control system (24), and then the original vehicle The electric transmission system (9) controls the separation of the first clutch (6) and the second clutch (12), so as to prevent the energy storage time from being too long after overpressure and the hydraulic system to generate heat. At the same time, the pressure relay (31) will give The system (9) transmits a signal to make the electric drive system (9) of the original car turn on its own electric braking system, and utilize the original electric braking system of the mine car to absorb braking energy. If you want to stop, you should use the mechanical brake system of the original car, and keep stepping on the brake pedal until you stop.
四．上坡、加速和起动模式Four. Uphill, acceleration and launch modes
当车辆处于上坡、加速和起动时，释放制动器脚踏板（29），踩下离合器脚踏板（28）和加速器脚踏板（30），如前所述此时则第一离合器（6）和第二离合器（12）都啮合，加速信号通过加速信号传感器（27）送到液压储能再生制动控制系统（24）中，液压储能再生制动控制系统（24）控制电磁换向阀（21）得电，电磁换向阀工作在右位。上坡、加速和起动时矿车在第一泵马达（5）（此时第一泵马达（5）工作在马达模式）的驱动下，将动力通过轴（14）、第一离合器（6）、轴（18）传送到第一车轮（7），右边传动系与左边传动系传动过程相同。蓄能器（1）中的压力油经过换向阀（21）通油口B进入，从通油口P流入第一泵马达（5）下端进油口，再通过第一泵马达（5）上端出油口经电磁换向阀（21）通油口A流入，从通油口T回到油箱（20）中。如果看到压力表（2）中的压力已经很小了，代表蓄能器中液压能不足，应该松开离合器脚踏板（28），如果仍然踩下离合器脚踏板（28），此时压力继电器（31）向液压储能再生制动控制系统（24）发出信号，再由原车电传动系统（9）控制第一离合器（6）和第二离合器（12）分离，同时液压储能再生制动控制系统（24）使换向阀（21）失电回到左位，蓄能器（1）由于单向阀（4）的存在，不会继续放能，以免损坏液压系统。同时压力继电器（31）会给原车电传动系统（9）传递信号，使原车电传动系统（9）利用原车的加速系统控制第一电动机（8）、第二电动机（10）进行加速。When the vehicle is on an uphill, accelerating and starting, release the brake pedal (29), step on the clutch pedal (28) and accelerator pedal (30), at this time the first clutch (6 ) and the second clutch (12), the acceleration signal is sent to the hydraulic energy storage regenerative braking control system (24) through the acceleration signal sensor (27), and the hydraulic energy storage regenerative braking control system (24) controls the electromagnetic commutation The valve (21) is energized, and the electromagnetic reversing valve works in the right position. When going uphill, accelerating and starting, the mine car is driven by the first pump motor (5) (at this time, the first pump motor (5) is working in motor mode), and the power is passed through the shaft (14), the first clutch (6) 1. The shaft (18) is transmitted to the first wheel (7), and the transmission process of the right drive train is the same as that of the left drive train. The pressure oil in the accumulator (1) enters through the oil port B of the reversing valve (21), flows from the oil port P into the oil inlet port at the lower end of the first pump motor (5), and then passes through the first pump motor (5) The upper oil outlet flows in through the oil port A of the electromagnetic reversing valve (21), and returns to the oil tank (20) from the oil port T. If you see that the pressure in the pressure gauge (2) is already very small, it means that the hydraulic energy in the accumulator is insufficient, you should release the clutch pedal (28), if you still press the clutch pedal (28), at this time The pressure relay (31) sends a signal to the hydraulic energy storage regenerative braking control system (24), and then the original vehicle electric transmission system (9) controls the separation of the first clutch (6) and the second clutch (12), and the hydraulic energy storage The regenerative braking control system (24) de-energizes the reversing valve (21) and returns to the left position, and the accumulator (1) will not continue to discharge energy due to the existence of the check valve (4), so as not to damage the hydraulic system. At the same time, the pressure relay (31) will transmit a signal to the original vehicle electric transmission system (9), so that the original vehicle electric transmission system (9) uses the acceleration system of the original vehicle to control the first electric motor (8) and the second electric motor (10) to accelerate .
五．储能系统维修Fives. Energy storage system maintenance
在储能系统维修时，如果需要卸掉压力，可以利用溢流阀（3）进行卸荷。During maintenance of the energy storage system, if the pressure needs to be released, the overflow valve (3) can be used for unloading.
以上所述仅是本发明的优选实施方式，应当指出：对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。The above is only a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made. It should be regarded as the protection scope of the present invention.
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