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Road surface recognition noise reduction method and hybrid electric vehicle

A technology for hybrid vehicle, road recognition, applied in hybrid vehicles, motor vehicles, transportation and packaging, etc.

Pending Publication Date: 2022-04-12
重庆美沣秦安汽车驱动系统有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Similarly, for medium-speed and high-speed driving, because tire noise and wind noise will cover up engine noise to a certain extent during medium-speed and high-speed driving, but the same noise problem also exists to a certain extent

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  • Road surface recognition noise reduction method and hybrid electric vehicle
  • Road surface recognition noise reduction method and hybrid electric vehicle
  • Road surface recognition noise reduction method and hybrid electric vehicle

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Embodiment Construction

[0039] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0040] In the description of the present invention, it should be noted that the terms belonging to "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated direction or positional relationship is based on the direction or positional relationship described in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specif...

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Abstract

The invention discloses a road surface recognition noise reduction method and a hybrid electric vehicle. The method comprises the following steps that the flatness of a running road surface is obtained; obtaining the size of noise generated by the tire according to the flatness; and whether a control signal for switching automobile driving is output or not is judged according to the noise. According to the method, firstly, the flatness of the road surface on which the automobile runs is obtained, the function of judging whether the road surface is flat or not or whether the road surface is hollow or not is achieved, so that the noise generated by the road surface flatness on tires is judged, and finally automobile driving is switched according to the noise judgment result. When the tire noise caused by bumpiness of the road surface is large, the automobile drive with the large noise can be switched, so that the noise of the automobile drive can be covered by the road surface noise / tire noise, the effect of reducing the influence of the noise on people is achieved, and noise reduction is achieved; on the contrary, when the tire noise caused by the bumpy road surface is small, the automobile with the small noise is switched for driving.

Description

technical field [0001] The invention relates to the field of smart cars, in particular to a road surface recognition and noise reduction method and a hybrid electric car. Background technique [0002] Hybrid Vehicle (Hybrid Vehicle) refers to a vehicle whose drive system is composed of two or more single drive systems that can operate simultaneously. Due to the different components, layout methods and control strategies, a variety of classification forms have been formed. The energy-saving and low-emission features of hybrid vehicles have aroused great concern in the automotive industry and become a focus of automotive research and development. The hybrid device not only takes advantage of the long continuous working time and good power of the engine, but also takes advantage of the advantages of no pollution and low noise of the motor. It can be improved by more than 30%. The so-called hybrid vehicle generally refers to a hybrid electric vehicle (Hybrid Electric Vehicle,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W20/00B60W30/18B60W40/00B60W40/06
Inventor 唐远明孙德山丁帮伟洪继超李杨苗宇昌马全超王礼亮饶宇衡陈勇周康春钟佳豪
Owner 重庆美沣秦安汽车驱动系统有限公司
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