阅读说明：本技术 一种电动汽车氢燃料涡轮增程器系统及控制方法 (Hydrogen fuel turbine range extender system for electric automobile and control method ) 是由 连晋毅 冯瑞 李�杰 张喜清 智晋宁 李占龙 于 2019-11-20 设计创作，主要内容包括：本发明属于涡轮增程器技术领域,具体涉及一种电动汽车氢燃料涡轮增程器系统及控制方法,包括氢气供给系统、发电系统、动力电池系统、驱动系统、整车控制器和传感器,所述氢气供给系统、发电系统、动力电池系统、驱动系统分别通过传感器与整车控制器连接,所述氢气供给系统为发电系统提供反应所需的氢气,发电系统与动力电池系统相连,动力电池系统与驱动系统相连,所述整车控制器分别与氢气供给系统、发电系统、动力电池系统、驱动系统进行通讯。本发明通过涡轮发动机带动发电机给电池充电,涡轮发电机能都持续以最佳效率工作,提高燃料利用率的同时,能够以相对稳定的电压为电池充电,有利于延长电池的使用寿命。本发明用于电动汽车的增程。(The invention belongs to the technical field of turbine range extenders, and particularly relates to a hydrogen fuel turbine range extender system and a control method of an electric vehicle. The invention drives the generator to charge the battery through the turbine engine, the turbine generator can continuously work at the optimal efficiency, the fuel utilization rate is improved, and meanwhile, the battery can be charged by relatively stable voltage, thereby being beneficial to prolonging the service life of the battery. The invention is used for the range extension of the electric automobile.)

1. The utility model provides an electric automobile hydrogen fuel turbine increases journey ware system which characterized in that: the hydrogen power generation system comprises a hydrogen supply system (1), a power generation system (2), a power battery system (3), a driving system (4), a vehicle control unit (5) and a sensor (6), wherein the hydrogen supply system (1), the power generation system (2), the power battery system (3) and the driving system (4) are respectively connected with the vehicle control unit (5) through the sensor (6), the hydrogen supply system (1) provides hydrogen required for reaction for the power generation system (2), the power generation system (2) is connected with the power battery system (3), the power battery system (3) is connected with the driving system (4), and the vehicle control unit (5) is respectively communicated with the hydrogen supply system (1), the power generation system (2), the power battery system (3) and the driving system (4).

2. The electric vehicle hydrogen fuel turbine range extender system of claim 1, wherein:

the hydrogen gas supply system (1) includes a hydrogen storage tank (101) and a flow controller (102);

the sensors (6) comprise a first sensor (601), a second sensor (602), a third sensor (603), a fourth sensor (604), a fifth sensor (605), a sixth sensor (606), a seventh sensor (607), an eighth sensor (608), a ninth sensor (609) and a tenth sensor (6010);

the hydrogen storage tank (101) is connected with a first sensor (601) and a sixth sensor (606) respectively, the sensor (601) is connected with a flow controller (102), the sixth sensor (606) is connected with a vehicle control unit (5), and the flow controller (102) controls the flow rate of hydrogen output by the hydrogen storage tank (101) according to a signal of the condition of hydrogen output by the hydrogen storage tank (101) detected by the first sensor (601).

3. The electric vehicle hydrogen fuel turbine range extender system of claim 1, wherein: the power generation system (2) comprises a turbine engine (201), a high-speed generator (202), a turbine engine controller (203) and a generator controller (204); the turbine engine (201) is respectively connected with a second sensor (602) and a seventh sensor (607), the second sensor (602) is connected with a turbine engine controller (203), and the seventh sensor (607) is connected with a whole vehicle controller (5); the high-speed generator (202) is respectively connected with a third sensor (603) and an eighth sensor (608), the third sensor (603) is connected with a generator controller (204), the eighth sensor (608) is connected with a whole vehicle controller (5), and the turbine engine controller (203) controls the oxygen intake rate of the turbine engine (201) according to the rotating speed signal of the turbine engine (201) detected by the second sensor (602), so as to adjust the output rotating speed of the turbine generator (201); the generator controller (204) controls the rotating speed of the high-speed generator (202) according to the output voltage signal of the high-speed generator (202) detected by the third sensor (603), and detects whether the high-speed generator (202) normally operates.

4. The electric vehicle hydrogen fuel turbine range extender system of claim 1, wherein: the power battery system (3) comprises a battery (301) and a battery manager (302); the battery (301) is respectively connected with a fourth sensor (604) and a ninth sensor (609), the fourth sensor (604) is connected with a battery manager (302), the ninth sensor (609) is connected with the whole vehicle controller (5), and the battery manager (302) manages the battery (301) according to the electric quantity SOC, the output current, the output voltage and the temperature signal of the battery (301) detected by the fourth sensor (604).

5. The electric vehicle hydrogen fuel turbine range extender system of claim 1, wherein: the drive system (4) comprises a drive motor (401) and a motor controller (402); the driving motor (401) is respectively connected with a fifth sensor (605) and a tenth sensor (6010), the fifth sensor (605) is connected with a motor controller (402), the tenth sensor (6010) is connected with a vehicle control unit (5), and the motor controller (402) controls the torque output by the driving motor (401) to be adjusted according to a torque signal output by the driving motor (401) and detected by the fifth sensor (605).

6. The electric vehicle hydrogen fuel turbine range extender system of claim 1, wherein: the whole vehicle controller (5) is respectively communicated with the flow controller (102), the turbine engine controller (203), the generator controller (204), the battery manager (302) and the motor controller (402) to manage the whole system and control the motor to run, the whole vehicle controller (5) receives feedback of a sixth sensor (606) on hydrogen pressure of the hydrogen storage tank (101), whether hydrogen is output or not and a flow rate signal of the hydrogen is output, a seventh sensor (607) feeds back an output rotating speed signal of the turbine engine (201), an eighth sensor (608) feeds back an output voltage signal of the high-speed generator (202), a ninth sensor (609) feeds back a battery electric quantity SOC, an output current and an output voltage signal, a tenth sensor (6010) feeds back an output torque signal of the driving motor (401), and the whole vehicle controller (5) integrates the signals fed back by the sensors with the flow controller (102), The turbine engine controller (203), the generator controller (204), the battery manager (302), and the motor controller (402) communicate to manage the overall hydrogen-fueled turbo range extender system.

7. The electric vehicle hydrogen fuel turbine range extender system of claim 2, wherein: the pressure of the hydrogen storage tank (101) is 70 MPa.

8. The electric vehicle hydrogen fuel turbine range extender system of claim 3, wherein: the turbine engine (201) is coaxially connected with a high-speed generator (202).

9. The electric vehicle hydrogen fuel turbine range extender system of claim 4, wherein: the battery (301) can adopt a ternary lithium battery, a lithium iron phosphate battery or a lithium manganate battery, and the capacity of the battery (301) is 15 KW-60 KW.

10. A control method of a hydrogen fuel turbine range extender system of an electric vehicle is characterized by comprising the following steps: comprises the following steps:

s1, when the SOC of the battery is more than or equal to 80%, the power supply system is closed, and the battery stops charging;

s2, when the SOC of the battery is between 20% and 80%, the power supply system intermittently supplies power to charge the battery;

and S3, when the SOC of the battery is lower than 20%, starting the power supply system to continuously supply power to the battery.

Technical Field

The invention belongs to the technical field of turbine range extenders, and particularly relates to a hydrogen fuel turbine range extender system of an electric vehicle and a control method.

Background

With the excessive exploitation and abuse of fossil fuels, humans face serious energy shortage crisis and environmental pollution problems. The reserves of non-renewable chemical fuels such as petroleum on the earth are getting smaller and smaller, and the CO and CO generated by the combustion of fossil fuels₂And harmful gases such as sulfide and nitrogen oxide cause serious pollution. There is an urgent need to find new, clean, renewable energy alternatives. The use of hydrogen energy is undoubtedly one of the ways to alleviate this problem. Compared with the traditional fuel oil automobile, the hydrogen energy automobile has the following advantages: the hydrogen resource reserves are abundant; the product only contains water after reacting with oxygen, and the method has the advantages of cleanness, no pollution and the like.

In recent years, electric vehicles have been developed rapidly, but due to technical limitations, the life of a vehicle battery is short, and the energy density is not high, so that the vehicle has a short driving range, and is only suitable for short-distance driving in cities. Meanwhile, the long charging time of the power grid is one of the important reasons for restricting the development of the electric automobile.

Disclosure of Invention

Aiming at the technical problems, the invention provides a hydrogen fuel turbine range extender system of an electric automobile and a control method thereof, wherein the hydrogen fuel turbine range extender system is pollution-free, high in efficiency and strong in stability.

In order to solve the technical problems, the invention adopts the technical scheme that:

the hydrogen fuel turbine range extender system of the electric automobile comprises a hydrogen supply system, a power generation system, a power battery system, a driving system, a vehicle control unit and a sensor, wherein the hydrogen supply system, the power generation system, the power battery system and the driving system are respectively connected with the vehicle control unit through the sensor, the hydrogen supply system provides hydrogen required by reaction for the power generation system, the power generation system is connected with the power battery system, the power battery system is connected with the driving system, and the vehicle control unit is respectively communicated with the hydrogen supply system, the power generation system, the power battery system and the driving system.

The hydrogen supply system comprises a hydrogen storage tank and a flow controller;

the sensors comprise a first sensor, a second sensor, a third sensor, a fourth sensor, a fifth sensor, a sixth sensor, a seventh sensor, an eighth sensor, a ninth sensor and a tenth sensor;

the hydrogen storage tank is respectively connected with the first sensor and the sixth sensor, the sensors are connected with the flow controller, the sixth sensor is connected with the whole vehicle controller, and the flow controller controls the flow rate of the hydrogen output by the hydrogen storage tank according to a signal of the condition of the hydrogen output by the hydrogen storage tank, which is detected by the first sensor.

The power generation system comprises a turbine engine, a high-speed generator, a turbine engine controller and a generator controller; the turbine engine is respectively connected with a second sensor and a seventh sensor, the second sensor is connected with a turbine engine controller, and the seventh sensor is connected with a whole vehicle controller; the high-speed generator is respectively connected with a third sensor and an eighth sensor, the third sensor is connected with a generator controller, the eighth sensor is connected with a whole vehicle controller, and the turbine engine controller controls the oxygen intake rate of the turbine engine according to the rotating speed signal of the turbine engine detected by the second sensor so as to adjust the output rotating speed of the turbine generator; and the generator controller controls the rotating speed of the high-speed generator according to the output voltage signal of the high-speed generator detected by the third sensor and detects whether the high-speed generator normally operates.

The power battery system comprises a battery and a battery manager; the battery is respectively connected with the fourth sensor and the ninth sensor, the fourth sensor is connected with the battery manager, the output of the ninth sensor is connected with the whole vehicle controller, and the battery manager manages the battery according to the electric quantity SOC, the output current, the output voltage and the temperature signal of the battery detected by the fourth sensor.

The driving system comprises a driving motor and a motor controller; the driving motor is respectively connected with a fifth sensor and a tenth sensor, the fifth sensor is connected with the motor controller, the tenth sensor is connected with the whole vehicle controller, and the motor controller controls the torque output by the driving motor to be adjusted according to a torque signal output by the driving motor and detected by the fifth sensor.

The vehicle control unit is respectively communicated with the flow controller, the turbine engine controller, the generator controller, the battery manager and the motor controller so as to manage the whole system and control the motor to run, the vehicle control unit receives feedback of a sixth sensor on the hydrogen pressure of the hydrogen storage tank, whether the hydrogen is output and the flow speed signal of the output hydrogen, a seventh sensor on the output rotating speed signal of the turbine engine, an eighth sensor on the output voltage signal of the high-speed generator, a ninth sensor on the electric quantity SOC of the battery, the output current and the output voltage signal, a tenth sensor on the output torque signal of the driving motor, and the vehicle control unit integrates the signals fed back by the sensors to communicate with the flow controller, the turbine engine controller, the generator controller, the battery manager and the motor controller, thereby managing the entire hydrogen-fueled turbine range extender system.

The pressure of the hydrogen storage tank is 70 Mpa.

The turbine engine is coaxially connected with a high-speed generator.

The battery can adopt a ternary lithium battery, a lithium iron phosphate battery or a lithium manganate battery, and the capacity of the battery is 15 KW-60 KW.

A control method of a hydrogen fuel turbine range extender system of an electric vehicle comprises the following steps:

s1, when the SOC of the battery is more than or equal to 80%, the power supply system is closed, and the battery stops charging;

s2, when the SOC of the battery is between 20% and 80%, the power supply system intermittently supplies power to charge the battery;

and S3, when the SOC of the battery is lower than 20%, starting the power supply system to continuously supply power to the battery.

Compared with the prior art, the invention has the following beneficial effects:

compared with the traditional internal combustion engine, the invention uses hydrogen as fuel, is clean and renewable, and the product is only H₂And O, no pollution. Compared with gasoline with the same mass, the heat value of the hydrogen-rich gasoline is multiple times that of gasoline, the flame propagation speed of hydrogen is high, the fuel can be combusted more fully, the energy conversion efficiency of the fuel is greatly improved, and the purposes of energy conservation and emission reduction are achieved.

The turbine engine drives the generator to charge the battery, the turbine generator can work at the optimal efficiency continuously, the fuel utilization rate is improved, meanwhile, the battery can be charged by relatively stable voltage, and the service life of the battery is prolonged.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a flow chart of the control method of the vehicle control unit according to the present invention;

wherein: the system comprises a hydrogen supply system, a power generation system, a power battery system, a driving system, a vehicle control unit 5, a sensor 6, a hydrogen storage tank 101, a flow controller 102, a turbine engine 201, a high-speed generator 202, a turbine engine controller 203, a generator controller 204, a battery 301, a battery manager 302, a driving motor 401, a motor controller 402, a first sensor 601, a second sensor 602, a third sensor 603, a fourth sensor 604, a fifth sensor 605, a sixth sensor 606, a seventh sensor 607, an eighth sensor 608, a ninth sensor 609 and a tenth sensor 6010.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

A hydrogen fuel turbine range extender system of an electric vehicle is shown in figure 1 and comprises a hydrogen supply system 1, a power generation system 2, a power battery system 3, a driving system 4, a vehicle control unit 5 and a sensor 6, wherein the hydrogen supply system 1, the power generation system 2, the power battery system 3 and the driving system 4 are respectively connected with the vehicle control unit 5 through the sensor 6, the hydrogen supply system 1 provides hydrogen required by reaction for the power generation system 2, the power generation system 2 is connected with the power battery system 3, the power battery system 3 is connected with the driving system 4, and the vehicle control unit 5 is respectively communicated with the hydrogen supply system 1, the power generation system 2, the power battery system 3 and the driving system 4.

Further, the hydrogen gas supply system 1 includes a hydrogen storage tank 101 and a flow controller 102; the sensors 6 include a first sensor 601, a second sensor 602, a third sensor 603, a fourth sensor 604, a fifth sensor 605, a sixth sensor 606, a seventh sensor 607, an eighth sensor 608, a ninth sensor 609, and a tenth sensor 6010; the hydrogen storage tank 101 is respectively connected with a first sensor 601 and a sixth sensor 606, the sensor 601 is connected with the flow controller 102, the sixth sensor 606 is connected with the vehicle control unit 5, and the flow controller 102 controls the flow rate of the hydrogen output by the hydrogen storage tank 101 according to the signal of the condition of the hydrogen output by the hydrogen storage tank 101, which is detected by the first sensor 601.

Further, the power generation system 2 includes a turbine engine 201, a high-speed generator 202, a turbine engine controller 203, and a generator controller 204; the turbine engine 201 is respectively connected with a second sensor 602 and a seventh sensor 607, the second sensor 602 is connected with the turbine engine controller 203, and the seventh sensor 607 is connected with the vehicle control unit 5; the high-speed generator 202 is respectively connected with a third sensor 603 and an eighth sensor 608, the third sensor 603 is connected with the generator controller 204, the eighth sensor 608 is connected with the vehicle control unit 5, and the turbine engine controller 203 controls the oxygen intake rate of the turbine engine 201 according to the rotation speed signal of the turbine engine 201 detected by the second sensor 602, so as to adjust the output rotation speed of the turbine generator 201; the generator controller 204 controls the rotation speed of the high-speed generator 202 according to the output voltage signal of the high-speed generator 202 detected by the third sensor 603, and detects whether the high-speed generator 202 is operating normally.

The power battery system 3 comprises a battery 301 and a battery manager 302; the battery 301 is respectively connected with a fourth sensor 604 and a ninth sensor 609, the fourth sensor 604 is connected with the battery manager 302, the ninth sensor 609 is connected with the vehicle control unit 5, and the battery manager 302 manages the battery 301 according to the electric quantity SOC, the output current, the output voltage and the temperature signal of the battery 301 detected by the fourth sensor 604.

Further, the drive system 4 includes a drive motor 401 and a motor controller 402; the driving motor 401 is respectively connected with a fifth sensor 605 and a tenth sensor 6010, the fifth sensor 605 is connected with the motor controller 402, the tenth sensor 6010 is connected with the vehicle control unit 5, and the motor controller 402 controls the torque signal output by the driving motor 401 according to the torque signal detected by the fifth sensor 605 to adjust the torque output by the driving motor 401.

Further, the vehicle control unit 5 communicates with the flow controller 102, the turbine engine controller 203, the generator controller 204, the battery manager 302 and the motor controller 402 respectively to manage the whole system and control the operation of the motor, the vehicle control unit 5 receives feedback of the hydrogen pressure, whether to output hydrogen and the flow rate signal of the output hydrogen of the hydrogen storage tank 101 from the sixth sensor 606, feedback of the output rotation speed signal of the turbine engine 201 from the seventh sensor 607, feedback of the output voltage signal of the high-speed generator 202 from the eighth sensor 608, feedback of the battery capacity SOC, the output current and the output voltage signal from the ninth sensor 609, feedback of the output torque signal of the driving motor 401 from the tenth sensor 6010, and the vehicle control unit 5 integrates the feedback signals of the sensors with the flow controller 102, the turbine engine controller 203, the generator controller 204, the flow controller 102, the turbine engine controller 203, the generator controller 204, the, The battery manager 302, the motor controller 402 communicate to manage the entire hydrogen fuel turbine range extender system.

Further, preferably, the pressure of the hydrogen storage tank 101 is 70Mpa, and the hydrogen is stored in a high-pressure gaseous state, so that the problem that an automobile using gasoline and diesel oil is difficult to start at low temperature can be avoided.

Further, it is preferable that the turbine engine 201 and the high-speed generator 202 are coaxially connected such that the turbine engine 201 and the high-speed generator 202 have the same rotational speed.

Further, preferably, the battery 301 can adopt a ternary lithium battery, a lithium iron phosphate battery or a lithium manganate battery, and the capacity of the battery 301 is 15KW to 60 KW.

A control method of a hydrogen fuel turbine range extender system of an electric vehicle, as shown in fig. 2, comprising the following steps:

s1, when the SOC of the battery is more than or equal to 80%, the power supply system is closed, and the battery stops charging;

s2, when the SOC of the battery is between 20% and 80%, the power supply system intermittently supplies power to charge the battery;

and S3, when the SOC of the battery is lower than 20%, starting the power supply system to continuously supply power to the battery.

Although only the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art, and all changes are encompassed in the scope of the present invention.