Parameters of the Summing Reduction Gear Hybrid Car

Author Name(s): Stanislav R. Ishinbaev, Radik M. Galiyev, Venera M. Nigmetzyanova, Fedor L. Nazarov
Author Email: Slavik.ishinbaev@mail.ru

Abstract

Cars with an internal combustion engine consume a large amount of fuel and emit harmful substances into the environment with exhaust gases. The ecology problem is especially acute in large cities and near federal highways. At the same time, emissions from automobile transport are growing at a faster pace, and its share in emissions of harmful substances from the transport complex is 89%, because the number of cars is increasing annually. One of the effective directions in solving the problem is the use of electric drive in car designs [1, 2]. In transport engineering, such companies as FordMotors, GeneralMotors, Chrysler, Reno, Fiat, Pegeot, Volkswagen, TokyoElectricPowerCo, AseaBrownBoveri and others are engaged in the development of electric drives used in cars and their electrical equipment. [3, 4, 5]. An example is the development of Volkswagen. This car consists of a diesel engine, a small electric motor and a sodium sulfur battery. When driving at low speeds, the drive wheels are driven by an electric motor, then the internal combustion engine is launched, which provides wheel drive at steady speeds. In this case, the electric motor goes into generator mode. The prototype allowed consuming 4 liters of fuel per 100 kilometers and reducing the toxicity of exhaust gases by 60% compared with a serial internal combustion engine. A hybrid car has two energy sources: an internal combustion engine and an electric motor. Each of the engines complements the disadvantages of the other. In this case, the energies of two engines are combined. The matching element or summing reducer can be various types of reducers: chain, belt, gear, planetary, etc. When summing the energy of two engines, it is necessary to coordinate the rotational speeds of the shafts of the internal combustion engine and the electric motor, which are interconnected via a summing reducer.

Introduction

Increasing requirements for fuel efficiency and environmental safety of the car oblige designers to look for innovative solutions to this problem [6]. One of the effective directions in solving these problems is the use of electric drive in car designs. In recent years, two areas of development of cars with electromechanical drives have been clearly identified: the first is the creation of a clean electric vehicle, the second is the development of an electromechanical drive with a combined (hybrid) power plant. Due to the lack of efficient electric energy storage devices available for mass production, pure electric vehicles have relatively low mileage on a single charge. This is one of the main reasons for studying the feasibility and efficiency of using combined power plants in vehicle designs, consisting of two engines (internal combustion engine and electric motor) and an energy storage device. Moreover, any engine can be used as an internal combustion engine: gasoline, diesel, gas [7].

Conclusion

Based on operational requirements, such as: minimum fuel consumption, environmental damage, improvement of traction and speed properties of the car and possibility of control automation, it follows that the structural diagram of a car with a parallel connection of an internal combustion engine and an electric machine is the most preferred, when summing their power flows in the summing reducer. The use of a hybrid car of a differential summing reducer from an internal combustion engine and an electric machine in the design will create a stepless electromechanical transmission.

500 total views, no views today

Download PDF File

About the author: admin