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Vehicle and method and device for controlling automatic emergency braking of vehicle

A technology of automatic emergency braking and control method, which is applied in the field of vehicle control, and can solve the problems of not considering relative speed, AEB cannot be effectively used and affected

Active Publication Date: 2017-05-24
ZHICHEAUTO TECH BEIJING
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In the above-mentioned vehicle active collision avoidance method, the calculation of automatic emergency braking deceleration and triggering of the braking action are only calculated based on the inter-vehicle distance, without considering the relative speed between the two vehicles. When the speed of the car is high, emergency braking will also be performed, resulting in early braking that affects normal driving, which brings distrust to the driver and AEB is turned off, resulting in AEB being unable to be used effectively

Method used

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  • Vehicle and method and device for controlling automatic emergency braking of vehicle
  • Vehicle and method and device for controlling automatic emergency braking of vehicle
  • Vehicle and method and device for controlling automatic emergency braking of vehicle

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Embodiment Construction

[0085] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0086] At the same time, it should be understood that, for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0087] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.

[0088] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the descript...

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Abstract

The invention discloses a vehicle and a method and a device for controlling automatic emergency braking of the vehicle. The method includes the steps: determining whether an external object is positioned in a driving lane of the vehicle or not according to the course angle speed of the vehicle, the relative distance between the vehicle and the external object and the deviation angle of the external object relative to the vehicle; acquiring braking deceleration needed by safety running of the vehicle according to the running speed of the vehicle, the relative distance between the vehicle and the external object, the relative speed of the vehicle and the external object and the safety distance of the vehicle in braking if the external object is positioned in the driving lane of the vehicle; responding to the braking deceleration larger than 0, and controlling corresponding braking action of the vehicle according to the relation between the braking deceleration and a preset threshold value. Collision can be effectively and reliably avoided, or collision injury can be effectively and reliably relieved, the collision risk of two vehicles running at the same speed can be avoided, and unnecessary early braking affecting normal driving can also be effectively avoided.

Description

technical field [0001] The invention relates to vehicle control technology, in particular to a control method and device for automatic emergency braking of a vehicle, and a vehicle. Background technique [0002] According to the test of the European Union New Car Safety Assessment Association (euro-NCAP), Advanced Emergency Braking (AEB) technology can avoid 27% of traffic accidents, and can greatly reduce the degree of injury to people in collision accidents. At present, the Advanced Emergency Braking System (AEBS) based on AEB technology has been valued and researched by various vehicle manufacturers, component suppliers, and research institutions, and some products have been applied and promoted. In AEB technology, how to avoid collision or reduce collision damage without affecting normal driving is the most important issue. [0003] In a vehicle active collision avoidance method provided in the prior art, the automatic emergency braking deceleration is calculated accord...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T7/12
CPCB60T7/22B60T2201/022B60T2230/02
Inventor 李机智刘瑞祥刘海明沈海寅
Owner ZHICHEAUTO TECH BEIJING
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