CN102745061A - Novel hybrid real-time four-wheel drive pattern - Google Patents

Abstract

The invention provides a novel hybrid real-time four-wheel drive pattern. The novel hybrid real-time four-wheel drive pattern can realize a purely electric rear wheel drive pattern under city working condition and a real-time four-wheel purely electric drive pattern under outdoor working condition, if the electric quantity of a battery pack is not enough and the battery pack can not be timely charged in the process, a two-stroke engine can drive a first motor to reversely rotate and generate electricity, and the rear wheel drive pattern can be adopted at the moment. A second motor operates when a vehicle normally starts and travels, so that the daily operating requirement of a vehicle can be met; the first motor requires high power when the vehicle travels outdoors, a first clutch is switched off, a second clutch is engaged, and the battery pack provides a voltage and a current and operates together with the motor, so that the real-time four-wheel drive pattern is realized; and when the electric quantity of the battery pack is not enough, the first clutch is engaged, the second clutch is switched off, and the first motor is driven to reversely rotate by the engine so as to be taken as a generator and used for charging the battery pack.

Description

A New Hybrid Mode with Timely Four-Wheel Drive

Technical Fields

The invention relates to a novel hybrid timely four-wheel drive mode, in particular to a driving device of a hybrid vehicle under different working conditions and the field of automobile drive.

Background technique

Automobiles are a major contributor to energy consumption and environmental pollution. In the context of increasingly serious energy and environmental crises, energy conservation and environmental protection have increasingly become two major problems in today's society. Pure electric vehicles have become an inevitable trend in the development of the automotive industry. However, the technical level of batteries at this stage is still immature, so hybrid models have become a transitional product that auto companies are vying to develop.

At present, the electric motor of the more mature hybrid models on the market is still used as the auxiliary power system, and the main power system is still the engine, which belongs to weak hybrid power.

Contents of the invention

The technical problem to be solved by the invention is to overcome the existing defects and provide a novel hybrid timely four-wheel drive mode. It can satisfy the pure electric rear-wheel drive mode under urban working conditions and the timely four-wheel drive pure electric driving mode under outdoor working conditions. The engine can drive the first electric motor to reversely generate electricity, and the rear wheel drive mode can be adopted at this time.

In order to solve the problems of the technologies described above, the present invention provides the following technical solutions:

A new hybrid timely four-wheel drive mode, characterized by:

Including wheels, second electric motor, rear axle final drive, rear axle half shaft, two-stroke engine, first clutch, first electric motor, second clutch, transmission, front axle drive shaft, battery pack, distribution box, power management chargers, chargers, fuel tanks,

The second electric motor is connected to the main reducer of the rear axle, the final reducer of the rear axle is connected to the half shaft of the rear axle, the half shaft of the rear axle is connected to the rear wheels,

The two-stroke engine and the first electric motor are disconnected or engaged through the first clutch, and the first electric motor is engaged with the two-stroke engine through the first clutch when the power of the battery pack is insufficient, and is driven by the two-stroke engine as a generator to charge the battery pack ;

The first electric motor is connected or disconnected from the transmission through the disengagement or engagement of the second clutch, and the first electric motor engages the transmission through the second clutch when the power of the vehicle is insufficient, drives the wheels through the transmission and the front axle drive shaft, and The second electric motor works together to enter the four-wheel drive mode;

The battery pack provides working voltage and current for the first motor and the second motor through the distribution box, and stores the electricity generated by the two-stroke engine driving the first motor in reverse to generate electricity through the distribution box.

In view of the development level of the battery at the present stage, the ability of the battery to store electricity cannot meet the cruising range requirements of the pure electric vehicle, and the present invention adds a two-stroke engine to make it work under economical conditions to charge the battery pack. It not only increases the cruising range capability of the battery, but also achieves the purpose of energy saving and environmental protection.

Specifically, the present invention provides a novel hybrid timely four-wheel drive mode, which can satisfy the pure electric rear-wheel drive mode under urban working conditions and the timely four-wheel drive pure electric driving mode under outdoor working conditions. During this process, if the battery pack is insufficient in power and cannot be charged in time, the two-stroke engine can drive the first electric motor to generate electricity in reverse, and the rear wheel drive mode can be adopted at this time.

The second electric motor works when the vehicle starts and runs normally, meeting the daily use requirements of the vehicle

When the first motor needs more power when the vehicle is running outdoors, the first clutch is disconnected and the second clutch is engaged. The voltage and current provided by the battery pack work together with the motor to realize a timely four-wheel drive mode; When insufficient, the first clutch is engaged, the second clutch is disconnected, and the first electric motor is driven by the engine to reverse and act as a generator to charge the battery pack.

The driving of the vehicle is mainly driven by two electric motors arranged at the front and rear. The engine is only used as an auxiliary power generation device, which can always work in a relatively economical working condition. It does not directly provide power, and the exhaust gas produced will be relatively small. The use of fuel Efficiency will also be higher. Compared with the current hybrid drive mode, the power source of this drive mode is the arranged front and rear electric motors, and the engine is only used as an auxiliary power generation device, which is a strong hybrid mode.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the description, and are used together with the embodiments of the present invention to explain the present invention, and do not constitute a limitation to the present invention. In the attached picture:

Figure 1 is a working diagram of the drive mode under urban working conditions;

Figure 2 is a schematic diagram of the driving mode in outdoor working conditions;

Figure 3 is a working schematic diagram of the driving mode when the battery pack is low in power but cannot be charged normally;

Fig. 4 is a schematic structural diagram of the device of the present invention.

Detailed ways

The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

As shown in Figure 4, a new hybrid timely four-wheel drive mode includes wheels 7, a second electric motor 14, a rear axle final drive 13, a rear axle half shaft 12, a two-stroke engine 1, and a first clutch 2 , the first motor 3, the second clutch 4, the transmission 5, the front axle drive shaft 6, the battery pack 8, the distribution box 9, the power manager 10, the charger 11, and the fuel tank 15.

As shown in Figure 1, in the rear wheel drive mode under short-distance working conditions, the second electric motor 14 is connected with the rear axle final drive 13, the rear axle final drive 13 is connected with the rear axle half shaft 12, and the rear axle half shaft 12 and The rear wheels are connected for rear-wheel drive mode.

As shown in Figure 3, the two-stroke engine 1 and the first electric motor 3 are disconnected or engaged through the first clutch 2, and the first electric motor 3 is engaged with the two-stroke engine 1 through the first clutch 2 when the power of the battery pack is insufficient, and the two The stroke engine 1 drives as a generator to charge the battery pack.

As shown in Figure 2, the first electric motor 3 is connected or disconnected from the transmission 5 through the disengagement or engagement of the second clutch 4, and the first electric motor 3 engages the transmission 5 through the second clutch 4 when the power of the vehicle is insufficient. The transmission 5 and the front axle drive shaft 6 drive the wheels 7 and work together with the second electric motor 14 to enter the four-wheel drive mode.

The battery pack 8 provides working voltage and current for the first motor 3 and the second motor 14 through the distribution box 9 , and stores the electric power generated by the two-stroke engine 1 driving the first motor 3 to reversely generate electricity through the distribution box 9 .

The driving of the vehicle is mainly driven by two electric motors arranged at the front and rear. The engine is only used as an auxiliary power generation device, which can always work in a relatively economical working condition. It does not directly provide power, and the exhaust gas produced will be relatively small. The use of fuel Efficiency will also be higher. Compared with the current hybrid drive mode, the power source of this drive mode is the arranged front and rear electric motors, and the engine is only used as an auxiliary power generation device, which is a strong hybrid mode.

Finally, it should be noted that: the above is only a preferred embodiment of the present invention, and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still The technical solutions recorded in the foregoing embodiments may be modified, or some technical features thereof may be equivalently replaced. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (1)

1. A novel hybrid timely four-wheel drive mode, characterized in that: Including wheels (7), second electric motor (14), rear axle final drive (13), rear axle half shaft (12), two-stroke engine (1), first clutch (2), first electric motor (3) , second clutch (4), transmission (5), front axle drive shaft (6), battery pack (8), power distribution box (9), power manager (10), charger (11), fuel tank ( 15), The second electric motor (14) is connected to the rear axle final drive (13), the rear axle final drive (13) is connected to the rear axle half shaft (12), and the rear axle half shaft (12) is connected to the rear wheels, The two-stroke engine (1) and the first electric motor (3) are disconnected or engaged through the first clutch (2), and the first electric motor (3) is engaged through the first clutch (2) when the battery pack is insufficient. A stroke engine (1), driven by a two-stroke engine (1) as a generator to charge the battery pack; The first electric motor (3) is connected or disconnected from the transmission (5) through the disconnection or engagement of the second clutch (4), and the first electric motor (3) passes through the second clutch (4) when the power of the vehicle is insufficient. ) Engage the transmission (5), drive the wheels (7) through the transmission (5) and the front axle drive shaft (6), work together with the second electric motor (14), and enter the four-wheel drive mode; The battery pack (8) provides working voltage and current for the first electric motor (3) and the second electric motor (14) through the distribution box (9), and stores the drive of the two-stroke engine (1) through the distribution box (9). The first electric motor (3) reverses the electricity generated by electricity generation.

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