Adaptive Cruise Speed Control System, Method and Vehicle Based on Road Surface Roughness
A technology of cruising vehicle speed and control method, which is applied to services based on location information, services based on specific environments, vehicle components, etc. It can solve problems such as limited user experience improvement and no consideration of road surface smoothness.
Active Publication Date: 2022-05-17
CHONGQING CHANGAN AUTOMOBILE CO LTD
View PDF25 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] The current problem of adaptive cruise speed control is that it does not consider the road surface roughness, because the road surface roughness, vehicle speed and the combined effect of the two will affect the comfort and safety of the occupants on the vehicle. The degree of smoothness also affects the driver's choice of vehicle speed. Usually, the driver will adopt a faster vehicle speed on a flat road surface. On a horizontal or vertical uneven road surface, the driver will adopt a lower speed to ensure driving comfort. and security
The disadvantage of this method is that the speed is limited when the bumps have already occurred, and the user experience is limited.
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0045] The present invention will be further described below in conjunction with accompanying drawing.
[0046] Such as image 3 As shown, in the present embodiment, a method of adaptive cruise vehicle speed control based on road surface roughness comprises the following steps:
[0047] Step 1. The vehicle reports its real-time positioning and vehicle attitude data to the cloud platform in real time through V2N; the vehicle needs to install high-precision positioning equipment and use high-precision maps to realize lane-level road surface roughness data.
[0048] Step 2. The cloud platform calculates the road roughness index of the road the vehicle is driving on the basis of the vehicle's reported positioning and vehicle attitude data, and combines the vehicle positioning information and map data to generate road roughness big data.
[0049] Step 3. The vehicle obtains the big data of the road surface roughness of the current driving road from the cloud platform through V2N, ...
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
Login to View More Abstract
The invention discloses an adaptive cruising vehicle speed control system, method, vehicle and storage medium based on road surface smoothness, comprising: Step 1. The vehicle reports the real-time positioning of the vehicle and the vehicle attitude data at that time to the cloud platform in real time through V2N; step 2. The cloud platform calculates the road surface roughness index of the vehicle’s driving road according to the vehicle’s reported positioning and vehicle attitude data, and combines the vehicle positioning information and map data to generate road roughness big data; Step 3. The vehicle passes V2N from the cloud platform Obtain the big data of road surface roughness of the current driving road, calculate the target speed of the vehicle based on the big data of road surface roughness, and control the driving of the vehicle at the target speed. The invention can carry out self-adaptive cruising vehicle speed control according to the road surface roughness information.
Description
technical field [0001] The invention belongs to the technical field of automobile self-adaptive cruising, and in particular relates to an adaptive cruising vehicle speed control system, method, vehicle and storage medium based on road surface roughness. Background technique [0002] Adaptive Cruise Control (ACC) is an automotive feature that enables the vehicle to autonomously adjust its driving speed to match actual traffic conditions. Because ACC can reduce the driver's burden to a certain extent, it has been widely used day by day. At present, the implementation process of ACC is usually: obtain the distance and relative speed between the vehicle in front and the vehicle in front (that is, the vehicle in front and the closest distance to the vehicle) in real time, and determine whether to drive at the cruising speed according to the obtained distance and relative speed. Or decelerate to travel at a speed lower than the cruising speed, and the speed control is relatively ...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B60W30/14B60W40/06B60W40/105H04W4/029H04W4/44
CPCB60W30/143B60W40/06B60W40/105H04W4/029H04W4/44Y02T10/84
Inventor 杨志伟
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD