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Method for reducing vehicle wind resistance, vehicle gas path system and vehicle

A gas system and vehicle technology, applied to vehicle parts, body, body stability, etc., can solve the problem of limited effect of reducing wind resistance, and achieve the effect of weakening and reducing wind resistance

Pending Publication Date: 2018-07-24
ZHENGZHOU YUTONG BUS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the improvement of the shape of the rear wall and tail also has some limitations, and its effect on reducing wind resistance is also limited.

Method used

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  • Method for reducing vehicle wind resistance, vehicle gas path system and vehicle
  • Method for reducing vehicle wind resistance, vehicle gas path system and vehicle
  • Method for reducing vehicle wind resistance, vehicle gas path system and vehicle

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Embodiment Construction

[0028] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0029] In an embodiment of the method for reducing vehicle wind resistance of the present invention, the vehicle body is provided with an air outlet facing the rear negative pressure area, and when the vehicle speed is above the set value of the vehicle speed, the air outlet is exhausted to reduce the pressure difference of the vehicle in the front-rear direction, In this way, the effect of the pressure difference between the front and rear of the vehicle on the body is weakened, and the wind resistance of the vehicle during driving is reduced. The air outlet is communicated with the air pressure brake pipeline of the vehicle, and the air pump on the air pressure brake pipeline is used as the air source of the air outlet, so that there is no need to set up an additional air pump to supply air to the air outlet. Of course, in other embodiments, there is al...

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Abstract

The invention relates to a method for reducing vehicle wind resistance, a vehicle gas path system and a vehicle. The vehicle is provided with an exhaust branched path, a gas outlet of the exhaust branched path faces a vehicle tail negative pressure area, when the vehicle speed is bigger than a vehicle speed set value, the gas outlet conducts exhausting towards the tail negative pressure area to reduce the pressure difference of the vehicle in the front-back direction, thus the effect of the pressure difference of the vehicle in the front-back direction on a vehicle body is weakened, and the wind resistance of the vehicle in the travelling process is reduced.

Description

technical field [0001] The invention relates to a method for reducing vehicle wind resistance, a vehicle air circuit system and a vehicle. Background technique [0002] At present, 85% of the operating road conditions of passenger cars are high-speed road conditions, and at least 50% of the fuel consumption is used to overcome air resistance in high-speed road conditions. The wind resistance is proportional to the square of the speed of the passenger car, and the power consumed by the engine when overcoming the wind resistance is also proportional to the cube of the speed. Therefore, it is particularly important to reduce the air resistance of high-speed passenger cars in terms of energy saving. [0003] The aerodynamic research of passenger cars mainly includes the following four aspects: research on drag reduction of body shape, research on drag reduction of body accessories, research on drag reduction of chassis and flow field in engine compartment. The drag reduction r...

Claims

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Application Information

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IPC IPC(8): B62D37/02B60T17/00
CPCB60T17/004B62D37/02
Inventor 马磊刘积成郭李平郑辉田杰安姜德军
Owner ZHENGZHOU YUTONG BUS CO LTD
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