阅读说明：本技术 一种节能驱动系统及方法 (Energy-saving driving system and method ) 是由 池文明 于 2019-10-29 设计创作，主要内容包括：本发明公开了一种节能驱动系统,包括第一电池包、第二电池包、电动机、发电机组件和控制器,第一电池包和第二电池包与控制器电连接,且第一电池包和第二电池包分别与电动机电连接,用于为电动机提供驱动电能；发电机组件包括齿轮组和发电机,齿轮组与电动汽车的轮轴连接；第一电池包和第二电池包与发电机连接。本发明在现有电动汽车的基础上通过设置一发电机及储能装置,且本发明与传统储能装置所不同的是,通过设置两个储能电池电池,当一个电池放电时驱动汽车运行,在运行过程中通过与车辆连接的发电机为另一个储能电池充电,从而达到增加续航里程的目的；并且充电与放电过程分开进行,从而避免了电池的老化,有利于电动汽车的推动与发展。(The invention discloses an energy-saving driving system which comprises a first battery pack, a second battery pack, a motor, a generator assembly and a controller, wherein the first battery pack and the second battery pack are electrically connected with the controller, and are respectively and electrically connected with the motor and used for providing driving electric energy for the motor; the generator component comprises a gear set and a generator, and the gear set is connected with a wheel shaft of the electric automobile; the first battery pack and the second battery pack are connected with the generator. The invention is characterized in that two energy storage batteries are arranged, when one battery discharges, the automobile is driven to run, and the other energy storage battery is charged by the generator connected with the automobile in the running process, so that the aim of increasing the endurance mileage is fulfilled; and the charging and discharging processes are separately carried out, so that the aging of the battery is avoided, and the promotion and development of the electric automobile are facilitated.)

1. An energy-saving driving system is used for driving an electric automobile and is characterized in that: the power generation device comprises a first battery pack, a second battery pack, a motor, a generator assembly and a controller, wherein the first battery pack and the second battery pack are electrically connected with the controller, and are respectively and electrically connected with the motor and used for providing driving electric energy for the motor; the generator assembly comprises a gear set and a generator, and the gear set is connected with a wheel shaft of the electric automobile; the first battery pack and the second battery pack are connected with the generator.

2. The energy saving drive system of claim 1, wherein: the energy-saving driving system further comprises a rectifier, one end of the rectifier is electrically connected with the generator, and the other end of the rectifier is electrically connected with the first battery pack and the second battery pack.

3. The energy saving drive system of claim 1, wherein: the energy-saving driving system further comprises a current stabilizer, one end of the current stabilizer is electrically connected with the generator, and the other end of the current stabilizer is electrically connected with the first battery pack and the second battery pack.

4. The energy saving drive system of claim 1, wherein: the energy-saving driving system further comprises a rectifier and a current stabilizer, the rectifier is electrically connected with the generator, and the current stabilizer is electrically connected with the first battery pack and the second battery pack.

5. The energy saving drive system of claim 1, wherein: the energy-saving driving system further comprises a rectifier and a current stabilizer, the rectifier is electrically connected with the current stabilizer, the current stabilizer is electrically connected with the generator, and the rectifier is electrically connected with the first battery pack and the second battery pack.

6. The energy saving drive system of claim 1, wherein: the gear set comprises a first gear and a second gear, the first gear is mounted on a wheel shaft of the electric automobile, the second gear is connected with a main shaft of the generator, and the first gear is meshed with the second gear.

7. An energy-saving driving method, comprising the energy-saving driving system as claimed in any one of claims 1 to 5, and comprising the steps of:

s1: a user charges the first battery pack;

s2: in the process of driving the electric automobile by a user, the first battery pack supplies power to the motor, and the motor pushes the electric automobile to move forwards;

s3: the controller controls the second battery pack to be connected with the generator, and the second battery pack is charged in the driving process of the electric automobile;

s4: when the electric quantity loss of the first battery pack is lower than a preset value, the controller disconnects the first battery pack from the motor and controls the second battery pack to be connected with the motor, and the second battery pack provides operation electric energy for the motor.

8. An energy-saving driving method according to claim 7, characterized in that: step S2 further includes: the controller monitors a first battery pack electric quantity Q1 and a second battery pack electric quantity Q2, and judges a difference value between the first battery pack electric quantity Q1 and the second battery pack electric quantity Q2, wherein TQ is Q1-Q2; when the TQ is greater than or equal to 0, the controller controls the first battery pack to output electric energy to the motor, and simultaneously controls the second battery pack to be disconnected from the motor.

9. An energy-saving driving method according to claim 7, characterized in that: step S2 further includes: the controller monitors the electric quantity Q1 of the first battery pack and the electric quantity Q2 of the second battery pack in real time, and when the electric quantity Q1 of the first battery pack is smaller than or equal to the preset electric quantity AQ stored in the controller, the controller disconnects the first battery pack from the motor and stops supplying power to the motor.

Technical Field

The invention relates to the technical field of energy conservation of electric automobiles, in particular to an energy-saving driving system and method.

Background

The electric automobile is a substitute of the traditional fuel automobile and is developed rapidly in recent years, but the core for restricting the development of the electric automobile lies in that the electric automobile has shorter cruising distance, is not beneficial to long-distance driving, has longer charging time, and is still longer than the traditional fuel automobile refueling time even if the electric automobile is charged rapidly, so the charging problem of the electric automobile is the bottleneck for restricting the development of the electric automobile. However, the electric automobile has the core advantages of no environmental pollution and low use cost, so that in order to solve the problem of endurance of the electric automobile, a great amount of research and development personnel of electric automobile manufacturers invest a great amount of time and money to promote the technical development of electric automobile batteries; although the battery energy storage technology is greatly improved, and the endurance mileage of the electric automobile is improved, the investment cost is high, and the development of the electric automobile is not facilitated.

The application number is CN01211619.X proposes a self-charging running alternating current electric vehicle, which comprises a vehicle body, a power generation device, a charging device, a storage battery pack, an inverter, a step-up transformer, an alternating current motor, wheels, a system controller, a vehicle speed controller, a static cycle charger and a cycle charging relay, wherein the power generation device comprises a wind generating set and a friction generating set; the wind generating set comprises an air inlet, a wind wheel and a wind driven generator, wherein the air inlet is arranged at the front part of the automobile; the friction generator set comprises a main friction wheel, an auxiliary friction wheel, a friction wheel shaft, a friction transmission device, a transmission rod and a friction generator, wherein the main friction wheel drives the auxiliary friction wheel on the front wheel shaft and the rear wheel shaft, the friction wheel shaft is transmitted to the transmission rod through the friction transmission device, and the transmission rod drives the friction generator to generate electricity; the electricity generated by the wind driven generator and the friction generator is charged for the storage battery pack through a circulating charging relay, the electricity is output from the storage battery pack and connected with the inverter, the electricity is output from the inverter and divided into two paths, one path is input into the step-up transformer, the other path is input into the static circulating charger, the electricity is output from the step-up transformer and also divided into two paths, one path is input into the system controller, the other path is input into the vehicle speed controller, the vehicle speed controller is output to control the alternating current motor, and the alternating current. Above-mentioned patent technical scheme is through wind energy and friction production electric energy, realizes supplementing the charging to electric automobile, and this mode is carried out electric quantity through wind energy and is supplemented its electrogenesis ability limited, hardly realizes supplementing the purpose of continuation of the journey for electric automobile.

The patent No. CN201621450928.0 also provides a pure electric vehicle circulating charging device, which is composed of an electric storage lithium battery, a generator and an electronic intelligent control device; however, in this scheme, only one lithium battery is provided to achieve charging and discharging simultaneously, which results in a rapid degradation of battery performance.

The traditional automobile is realized by one battery in the charging and discharging processes in the operation process, the battery capacity and the battery performance are reduced sharply, the development of the electric automobile is not facilitated, the endurance mileage can be increased only in a short period, and the endurance mileage is lower than the original battery endurance mileage in the same period after the battery performance is reduced

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides an energy-saving driving system to improve the endurance mileage of an electric automobile.

An energy-saving driving system is used for driving an electric automobile and comprises a first battery pack, a second battery pack, a motor, a generator assembly and a controller, wherein the first battery pack and the second battery pack are electrically connected with the controller, and the first battery pack and the second battery pack are respectively electrically connected with the motor and used for providing driving electric energy for the motor; the generator assembly comprises a gear set and a generator, and the gear set is connected with a wheel shaft of the electric automobile; the first battery pack and the second battery pack are connected with the generator.

Preferably, the energy-saving driving system further comprises a rectifier, one end of the rectifier is electrically connected with the generator, and the other end of the rectifier is electrically connected with the first battery pack and the second battery pack.

Preferably, the energy-saving driving system further comprises a current stabilizer, wherein one end of the current stabilizer is electrically connected with the generator, and the other end of the current stabilizer is electrically connected with the first battery pack and the second battery pack.

Preferably, the energy-saving driving system further includes a rectifier and a current stabilizer, the rectifier is electrically connected to the power generator, and the current stabilizer is electrically connected to the first battery pack and the second battery pack.

Preferably, the energy-saving driving system further includes a rectifier and a current stabilizer, the rectifier is electrically connected to the current stabilizer, the current stabilizer is electrically connected to the generator, and the rectifier is electrically connected to the first battery pack and the second battery pack.

Preferably, the gear set comprises a first gear and a second gear, the first gear is mounted on the axle of the electric vehicle, the second gear is connected with the main shaft of the generator, and the first gear is meshed with the second gear.

The invention also provides an energy-saving driving method, which comprises the energy-saving driving system, and comprises the following steps:

s1: a user charges the first battery pack;

s2: in the process of driving the electric automobile by a user, the first battery pack supplies power to the motor, and the motor pushes the electric automobile to move forwards;

s3: the controller controls the second battery pack to be connected with the generator, and the second battery pack is charged in the driving process of the electric automobile;

s4: when the electric quantity loss of the first battery pack is lower than a preset value, the controller disconnects the first battery pack from the motor and controls the second battery pack to be connected with the motor, and the second battery pack provides operation electric energy for the motor.

Preferably, the step S2 further includes: the controller monitors a first battery pack electric quantity Q1 and a second battery pack electric quantity Q2, and judges a difference value between the first battery pack electric quantity Q1 and the second battery pack electric quantity Q2, wherein TQ is Q1-Q2; when the TQ is greater than or equal to 0, the controller controls the first battery pack to output electric energy to the motor, and simultaneously controls the second battery pack to be disconnected from the motor.

Preferably, the step S2 further includes: the controller monitors the electric quantity Q1 of the first battery pack and the electric quantity Q2 of the second battery pack in real time, and when the electric quantity Q1 of the first battery pack is smaller than or equal to the preset electric quantity AQ stored in the controller, the controller disconnects the first battery pack from the motor and stops supplying power to the motor.

The invention has the beneficial effects that: the energy-saving electric automobile is characterized in that a generator and an energy storage device are arranged on the basis of the existing electric automobile, and the energy-saving electric automobile is different from the traditional energy storage device in that two energy storage battery cells are arranged, when one battery discharges, the automobile is driven to run, and the other energy storage battery cell is charged through the generator connected with the automobile in the running process, so that the purpose of increasing the endurance mileage is achieved; and the charging and discharging processes are separately carried out, so that the aging of the battery is avoided, and the promotion and development of the electric automobile are facilitated.

Drawings

In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic diagram of an energy-saving driving system provided by the present invention.

In the figure, 10-energy-saving driving system, 201-first battery pack, 202-second battery pack, 203-controller, 30-generator, 40-rectifier, 50-current stabilizer, 11-first motor, 12-second motor, 101-first gear set, 102-second gear set.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.

FIG. 1 is a schematic diagram of an energy-saving driving system provided by the present invention; as shown in fig. 1, the present invention provides an energy saving driving system for driving an electric vehicle.