Method for designing vehicle on basis of wheel system structure

Abstract

The invention discloses a method for designing a vehicle on the basis of a wheel system structure, in order to solve the problems of power wasting of a driven wheel, power lacking of a driving wheel and surplus power configuration of the vehicle caused by equal radius of the present wheel system. The method for designing the vehicle on the basis of the wheel system structure comprises the following steps: 1) primarily setting a load wheel radius and a driving force according to a rolling resistance balance formula of the driven wheel: Fp1=Fz; 2) drawing a load wheel radius r1 according to a ground braking force formula of the wheel: Fxb=Tu / r, and checking if a braking torque of the vehicle is safe and reliable; 3) confirming a driving force required by the vehicle with a load wheel structure according to the formula: Ft=Ff+Fw+Fi; 4) arranging the driving wheel on one side or two sides of the load wheel on a driving part of the vehicle with the load wheel; and 5) confirming r2 according to a relationship that the radius r2 of the driving wheel is less than or equal to a half of the load wheel radius r1, and confirming the reasonable configuration of a power system of the vehicle. According to the method provided by the invention, the driving power of the vehicle is greatly enhanced under the condition that the original power of the vehicle is not increased, and the purpose of greatly saving energy is achieved.

Description

technical field [0001] The invention belongs to the field of vehicle technical design, and in particular relates to a method for designing a vehicle based on the structure of the wheel system. Specifically, it refers to transforming the concept of the driven wheel and driving wheel structure of the road vehicle wheel system into a concept based on the load wheel as the basic structure. Therefore, the vehicle design is carried out according to the advantages of the wheel motion characteristics to achieve the goal of substantial energy saving of the vehicle. Background technique [0002] The research on the vehicle wheel system structure has been ignored for a long time. When designing the vehicle technology, people are used to considering the speed characteristics of the vehicle engine, the transmission ratio of the transmission, the main transmission ratio, the transmission efficiency, the radius of the wheel, the air resistance coefficient, the windward area and Conditions ...

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Problems solved by technology

[0006] It is a pity that people ignore the contradiction of this traditional structure in practice, forget the basic principles of wheel kinematics, and do not adopt the method of first considering the vehicle design from the wheel structure factors, thus directly obtaining the wheel properties. Instead, it adopts the advantage of giving up the performance characteristics of the wheel properties, first considers the power factor, then considers the power transmission factor... and finally considers the wheel structure factor. Therefore, most wheel systems are designed to have the same radius, resulting in laborious driving of the driven wheels of the vehicle. , the difficult situation of weak driving wheels, and at the same time, the technical measures to improve the driving force of the vehicle are introduced into the wrong way of simply relying on increasing the driving force of the vehicle, which seriously hinders the process of rational development of human society

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