Unlock instant, AI-driven research and patent intelligence for your innovation.

Active engine hood control method and device, vehicle and storage medium

A technology of engine hood and control method, which is applied in vehicle components, vehicle safety arrangements, transportation and packaging, etc., which can solve the problems of pedestrian injury, inability to guarantee the distance between the engine hood and the hard point in the engine room, and insufficient hard point distance to achieve reliable sex high effect

Pending Publication Date: 2021-10-29
CHINA FIRST AUTOMOBILE
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to improve the collision protection performance of automobiles against pedestrians, the current mainstream method is to reduce the rigidity of the hood or increase the vertical distance between the hood and the hard point in the engine compartment. This method can improve the protection of the head of pedestrians to a certain extent. effect, but when the space layout is limited, the distance between the engine hood and the hard point in the cabin cannot be guaranteed, and the pedestrian's head hitting the hard point under the hood will cause serious injury to the pedestrian
The active engine cover can well solve the problem of insufficient distance between the engine cover and the hard points in the cabin, but the current active engine cover on the market has certain defects, and false triggers or missed triggers may occur, so a new technical solution is needed. Improved reliability of active hoods

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Active engine hood control method and device, vehicle and storage medium
  • Active engine hood control method and device, vehicle and storage medium
  • Active engine hood control method and device, vehicle and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] figure 1 It is a flowchart of an active engine hood control method according to an exemplary embodiment, the method is used in a terminal, and the method includes the following steps:

[0060] Step 101, when the perception unit receives the data acquisition request, respectively acquire vehicle data and external data and send them to the decision-making unit;

[0061] Step 102, the decision-making unit obtains vehicle data and external data for identification, and if the identified data meets the preset conditions, the decision-making unit transmits a control instruction to the execution unit; Step 103, the execution unit controls the vehicle according to the control instruction The active hood pops up automatically.

[0062] Preferably, the vehicle data includes: vehicle speed data and front bumper acceleration data, and the external data includes: atmospheric pressure data, obstacle data and pressure pipe internal pressure data.

[0063] Preferably, the decision-mak...

Embodiment 2

[0084] figure 2 It is a flowchart of an active engine hood control method according to an exemplary embodiment, the method is used in a terminal, and the method includes the following steps:

[0085] Step 201, when the perception unit receives the data acquisition request, it respectively acquires the vehicle data and the external data and sends them to the decision-making unit.

[0086] Wherein, the vehicle data includes: vehicle speed data and front bumper acceleration data, and the external data includes: atmospheric pressure data, obstacle data and pressure pipe internal pressure data.

[0087] Step 202, comparing the vehicle speed data with the speed threshold range to identify and execute corresponding instructions, the specific steps include:

[0088] Judging whether the speed threshold range is satisfied by the vehicle speed data, the speed threshold range is 25<u<55, where u is the vehicle speed data, and the speed threshold range is obtained by simulation or experi...

Embodiment 3

[0115] In an exemplary embodiment, there is also provided an active hood control device such as Figure 5-6 As shown, it includes: including: a perception unit 310, a decision unit 320 and an execution unit 330,

[0116] The perception unit 310 is used to obtain vehicle data and external data respectively and send them to the decision-making unit when the perception unit receives the data acquisition request; the perception unit 310 includes: CAN communication, parking radar 316, pressure sensor 315 and acceleration sensor 317, Obtain the vehicle speed u and atmospheric pressure p0 through CAN communication; obtain the signal of whether there are pedestrians or obstacles through the parking radar 316 at the front corner of the vehicle; obtain the pressure p1 in the pressure pipe 314 through the pressure sensor 315;

[0117] The acceleration of the front bumper 1 is acquired by the acceleration sensor 317 .

[0118] Parking radar 316, pressure pipe 314, pressure sensor 315 and...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an active engine hood control method and device, a vehicle and a storage medium, and belongs to the technical field of automatic control. The active engine hood control method comprises the steps that when a sensing unit receives a data obtaining request, vehicle data and external data are obtained and sent to a decision making unit; the decision making unit acquires vehicle data and external data for identification, and if the identified data meets a preset condition, the decision making unit transmits a control instruction to an execution unit; and the execution unit controls the active engine hood to automatically bounce according to the control instruction. According to the active engine hood control method and device, the terminal and the storage medium, an engine hood bounce decision is made based on a plurality of parameters, the parameters are not sensitive to environment information such as external illumination, the reliability is higher, and it is ensured that false triggering and missed triggering are avoided under the condition that no pedestrian collision exists.

Description

technical field [0001] The invention discloses an active engine hood control method, device, vehicle and storage medium, belonging to the technical field of automatic control. Background technique [0002] The death toll of traffic accidents in the world has been high all the time. Pedestrians accounted for more than 20% of all traffic fatalities. All regions and countries have promulgated corresponding laws and regulations to realize the collision protection between cars and pedestrians. After a car collides with a pedestrian, the pedestrian's legs first come into contact with the front bumper of the vehicle, then his thigh collides with the front edge of the hood, and finally his head hits the hood. Head injuries are extremely dangerous for pedestrians , so the protection of the head is particularly important. In order to improve the collision protection of automobiles against pedestrians, active hood technology has emerged as the times require. By actively lifting the r...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B60R21/38
CPCB60R21/38
Inventor 田阳娄方明王士彬姚宙籍龙波杨航王孙斌
Owner CHINA FIRST AUTOMOBILE