阅读说明：本技术 一种飞轮辅助动力系统 (Flywheel auxiliary power system ) 是由 孙宾宾 魏书斌 张铁柱 葛文庆 李波 于 2019-10-16 设计创作，主要内容包括：本发明提出一种飞轮辅助动力系统,属于车辆领域。该飞轮辅助动力系统包括飞轮储能模块、电机控制器、车载电池。飞轮储能模块包括飞轮、调速电机、单排行星齿轮机构、齿轮Z<Sub>1</Sub>及齿轮Z<Sub>2</Sub>。该飞轮辅助动力系统的连接关系如下：太阳轮与调速电机连接；齿圈则通过齿轮Z<Sub>1</Sub>、Z<Sub>2</Sub>与飞轮连接；行星架则与传动系相连接从而输出动力。在该飞轮辅助动力系统中,飞轮以机械能形式储存能量,将车辆制动的动能吸收,转化为飞轮动能,并在车辆加速时释放,提供辅助动力,达到增强动力和降低能耗的效果。此外,在制动过程中,本系统可以将飞轮无法吸收的剩余能量通过调速电机发电,将电能储存在电池中。本发明可以提高能量利用率,具有新型、高效节能的优点。(The invention provides a flywheel auxiliary power system, and belongs to the field of vehicles. The flywheel auxiliary power system comprises a flywheel energy storage module, a motor controller and a vehicle-mounted battery. The flywheel energy storage module comprises a flywheel, a speed regulating motor, a single-row planetary gear mechanism and a gear Z 1 And gear Z 2 . The connection relation of the flywheel auxiliary power system is as follows: the sun gear is connected with a speed regulating motor; the gear ring passes through the gear Z 1 、Z 2 Is connected with the flywheel; the planet carrier is connected with the transmission system so as to output power. In the flywheel auxiliary power system, the flywheel stores energy in the form of mechanical energy, absorbs kinetic energy generated by braking of a vehicle, converts the kinetic energy into kinetic energy of the flywheel, and releases the kinetic energy when the vehicle accelerates to provide auxiliary power, so that the effects of enhancing power and reducing energy consumption are achieved. In addition, in the braking process, the system can generate the residual energy which cannot be absorbed by the flywheel through the speed regulating motor, and store the electric energy in the battery. The invention can improve the energy utilization rate and has the advantages of novelty, high efficiency and energy saving.)

1. The flywheel auxiliary power system is characterized by comprising a flywheel energy storage module, a motor controller and a vehicle-mounted battery, wherein the flywheel energy storage module comprises a flywheel, a speed regulating motor, a single-row planetary gear mechanism and a gear Z₁And gear Z₂。

2. The flywheel auxiliary power system as claimed in claim 1, wherein the sun gear is connected to a variable speed motor; the gear ring passes through the gear Z₁、Z₂Is connected with the flywheel; the planet carrier is connected with the transmission system so as to output power.

3. A flywheel auxiliary power system as claimed in claim 1, wherein the system energy storage unit comprises: the flywheel body for storing kinetic energy can absorb and release energy through the change of the rotating speed, and directly convert the kinetic energy; the speed regulating motor connected with the sun gear can be used as a generator to convert kinetic energy into electric energy to be stored in the vehicle-mounted battery.

4. The flywheel auxiliary power system as claimed in claim 1, wherein the motor controller controls the start, speed regulation, braking and reversal of the adjustable speed motor to determine the motoring or generating state of the adjustable speed motor.

5. A flywheel auxiliary power system as claimed in claim 1, wherein the operating state of the flywheel auxiliary power system is divided as follows according to the vehicle operating conditions:

starting a charging state: when the vehicle is in a starting or idling stage, the wheels do not rotate, the planet carrier is fixed, the speed regulating motor is used as a motor, and the flywheel is driven to rotate at a high speed through the planetary gear structure, so that the effect of energy charging of the flywheel is achieved;

an accelerated discharging state: when the vehicle is in an acceleration stage, the flywheel reduces the rotating speed to release kinetic energy, and meanwhile, the speed regulating motor is used as a motor, and the flywheel and the motor output power at the same time, and the power is coupled through the planetary gear mechanism and is transmitted to a driving wheel from the planet carrier outwards, so that the acceleration performance of the vehicle is improved;

constant-speed constant-energy state: when the vehicle is in a constant speed stage, the flywheel runs by means of inertia, and meanwhile, the speed regulating motor runs at low power, so that the rotating speed of the flywheel is kept unchanged basically;

a deceleration recovery state: when the vehicle is in a deceleration stage, the vehicle performs regenerative braking, and the speed regulating motor and the flywheel obtain power simultaneously;

the speed regulating motor is used as a generator to charge the battery; the rotating speed of the flywheel is increased to realize energy charging; the rotating speed of the wheels is reduced, so that the speed reduction is realized;

flameout recovery state: when the vehicle is in a flameout stage, the wheels stop rotating, the planet carrier is fixed, the speed regulating motor is used as a generator to charge the battery, the residual kinetic energy in the flywheel is converted into chemical energy of the battery, and the rotating speed of the flywheel is reduced.

Technical Field

The invention relates to a flywheel auxiliary power system, and belongs to the field of vehicles.

Background

The flywheel battery is a new-concept battery which is provided only in the 90 s of the 20 th century, breaks through the limitation of a chemical battery, and realizes energy storage by a physical method. The flywheel battery has the characteristics of high energy density, high energy conversion efficiency, long service life, no pollution and the like, can be used as an auxiliary power system of an electric automobile, outputs higher instantaneous auxiliary power when the automobile accelerates and climbs, and can improve the energy recovery rate during regenerative braking. At present, flywheel batteries which are commonly used in production and life of people comprise electric flywheel batteries and mechanical flywheel batteries. In actual work, the rotating speed of the flywheel can reach 40000-50000 rpm, and the flywheel made of metal cannot bear the high rotating speed and is easy to disintegrate, so the flywheel is generally made of carbon fiber, and the carbon fiber material for manufacturing the flywheel is expensive at present and has higher cost. In addition, the flywheel battery has the defects of gyroscopic effect, high manufacturing difficulty, high technical requirement and the like.

Disclosure of Invention

The invention aims to provide a novel flywheel auxiliary power system, which reduces the production cost and improves the applicability on the basis of keeping the advantages of the traditional flywheel.

In order to achieve the above purpose, the invention adopts a technical scheme that: a flywheel auxiliary power system comprises a flywheel energy storage module, a motor controller and a vehicle-mounted battery. The flywheel energy storage module comprises a flywheel, a speed regulating motor, a single-row planetary gear mechanism and a gear Z₁And gear Z₂. Wherein, the sun gear is connected with a speed regulating motor; the gear ring passes through the gear Z₁、Z₂Is connected with the flywheel; the planet carrier is connected with the transmission system so as to output power.

Compared with an electric flywheel battery, the flywheel auxiliary power system directly transmits kinetic energy in a mechanical coupling mode through the planetary gear mechanism, multiple conversion of kinetic energy, electric energy and chemical energy is not needed, and the utilization efficiency of braking kinetic energy is high; the speed regulating motor performs auxiliary power and energy management, so that the capacity requirement of the electric transmission system is greatly reduced. Compared with a mechanical flywheel battery, the flywheel auxiliary power system has the advantages that a speed regulating motor replaces a mechanical Continuously Variable Transmission (CVT) through a planetary gear speed regulating mechanism, the energy of the flywheel can be supplemented at any time through the motor, and a vacuum device is not needed in the operation of the flywheel, so that the production cost is reduced, and the applicability is improved.

Drawings

Fig. 1 is a schematic structural diagram of a flywheel auxiliary power system according to an embodiment of the invention.

The reference numerals have the meanings:

1-a flywheel; 2-speed regulating motor; 3-a planetary gear mechanism; 4-sun gear; 5, a gear ring; 6-a planet carrier; 7-Gear Z₁(ii) a 8-Gear Z₂(ii) a 9-a motor controller; 10-a vehicle battery; and 11, a flywheel energy storage module.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

A flywheel auxiliary power system comprises a flywheel energy storage module 11, a motor controller 9 and a vehicle-mounted battery 10. The flywheel energy storage module 11 comprises a flywheel 1, a speed regulating motor 2, a planetary gear mechanism 3 and a gear Z₁And gear Z₂. Wherein, the sun gear 4 is connected with the speed regulating motor 2; the gear ring 5 passes through a gear Z₁、Z₂Is connected with the flywheel 1; the carrier 6 is connected to the drive train to output power.

The working state of the flywheel auxiliary power system is divided into the following states according to the running condition of the vehicle:

starting a charging state: when the vehicle is in a starting or idling stage, the wheels do not rotate, the planet carrier is fixed, the speed regulating motor is used as a motor, and the flywheel is driven to rotate at a high speed through the planetary gear structure, so that the effect of energy charging of the flywheel is achieved.

An accelerated discharging state: when the vehicle is in an acceleration stage, the flywheel reduces the rotating speed to release kinetic energy, the speed regulating motor is used as a motor, the flywheel and the motor output power at the same time, and the power is coupled through the planetary gear mechanism and transmitted to the driving wheel from the planet carrier, so that the acceleration performance of the vehicle is improved.

Constant-speed constant-energy state: when the vehicle is in the constant speed stage, the flywheel runs by means of inertia, and the speed regulating motor runs at low power, so that the rotating speed of the flywheel is kept unchanged basically.

A deceleration recovery state: when the vehicle is in the deceleration stage, the vehicle performs regenerative braking, and the speed regulating motor and the flywheel obtain power simultaneously. The speed regulating motor is used as a generator to charge the battery; the rotating speed of the flywheel is increased to realize energy charging; the rotating speed of the wheels is reduced, and the speed reduction is realized.

Flameout recovery state: when the vehicle is in a flameout stage, the wheels stop rotating, the planet carrier is fixed, the speed regulating motor is used as a generator to charge the battery, the residual kinetic energy in the flywheel is converted into chemical energy of the battery, and the rotating speed of the flywheel is reduced.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.