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

A vehicle driving control method, system and vehicle

A driving control and braking system technology, which is applied in the field of vehicle driving control methods, systems and vehicles, and can solve problems such as inability to precisely control vehicle parking

Active Publication Date: 2021-10-12
GUANGZHOU XIAOPENG MOTORS TECH CO LTD
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Embodiments of the present invention provide a method, system and vehicle for suppressing ultrasonic self-interference to solve the problem in the prior art that the vehicle cannot be accurately controlled to stop at a designated location

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
  • A vehicle driving control method, system and vehicle
  • A vehicle driving control method, system and vehicle
  • A vehicle driving control method, system and vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Such as figure 1 As shown, the embodiment of the present invention provides a vehicle driving control method, the method may include the following steps:

[0058] 101. After obtaining the brake control request, obtain the remaining parking distance and vehicle speed of the vehicle.

[0059] Wherein, the remaining parking distance of the vehicle is the distance between the location of the vehicle and the target parking location. Optionally, the remaining parking distance of the vehicle may be the planned driving path distance between the vehicle's location and the target parking location.

[0060] Optionally, in the embodiment of the present invention, the target parking position may be a certain preset parking position, and the above target parking position may also be a target determined according to the position of the obstacle when the vehicle detects an obstacle. parking location.

[0061] Optionally, the above-mentioned remaining parking distance can be calculat...

Embodiment 2

[0088] An optional implementation mode considers the whole process of vehicle braking and parking as a continuous variable deceleration process. The above-mentioned parking distance model in the embodiment of the present invention can be Formula 1:

[0089] Such as figure 2 As shown, the driving control method of the vehicle provided in the embodiment of the present invention includes the following steps:

[0090] 201. The whole process of the vehicle braking and stopping after the vehicle responds to the braking control request is regarded as a continuous variable deceleration process, so as to obtain the speed v of the vehicle at time t t .

[0091] The above 201 can be specifically realized through the following 201a and 201b:

[0092] 201a. Establish an acceleration expression at time t.

[0093] First, assuming that the current acceleration slope is r, the acceleration expression at time t can be established, that is, the following formula 3 is: a t =a 0 +∫r dt=...

Embodiment 3

[0120] An optional implementation method considers the movement of the vehicle in each control cycle during braking and parking as a uniform deceleration process. The above parking distance model is Formula 2:

[0121] Such as image 3 As shown, the driving control method of the vehicle provided in the embodiment of the present invention includes the following steps:

[0122] 301. Equivalent the motion of the vehicle in each control cycle after the vehicle responds to the braking control request as a uniform deceleration process, so as to obtain the vehicle speed v at time t after the vehicle responds to the braking control request t .

[0123] Optionally, in this embodiment of the present invention, the foregoing 301 may be implemented through the following 301a, 301b, and 301c.

[0124] 301a. Establish formula five.

[0125] The above formula five is: a n =(n+1)rT. where n is an integer greater than 0, and t represents the time for the vehicle to respond to the br...

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 embodiment of the present invention discloses a vehicle driving control method, system and vehicle, which are applied in the field of vehicle technology and can solve the problem that the vehicle cannot be accurately controlled to stop at a designated location. The method includes: after acquiring the brake control request, acquiring the remaining parking distance and the vehicle speed of the vehicle, the remaining parking distance being the distance between the position of the vehicle and the target parking position; The distance model calculates the acceleration slope value of the vehicle; the vehicle is controlled by the acceleration slope value; wherein, the parking distance model is a mathematical model obtained by integrating the speed of the vehicle with time as a variable.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of vehicles, and in particular, to a vehicle driving control method, system and vehicle. Background technique [0002] In automatic driving technology, usually in order to avoid collision with obstacles, it is necessary to control the vehicle to stop at a designated parking position. At present, the vehicle is usually controlled to stop through the calibrated speed value and acceleration slope. In practical applications, since the vehicle can only be controlled to stop according to the pre-calibrated speed value and acceleration slope during the braking process, and there may be errors between the actual speed value and acceleration slope of the vehicle and the calibrated value, the vehicle stops when braking. There may be early parking, or delayed parking, so that the vehicle cannot be accurately controlled to stop at the designated location. Contents of the invention [0003] Embo...

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 Patents(China)
IPC IPC(8): B60W40/107B60W50/00B60W30/06
CPCB60W30/06B60W40/107B60W50/00B60W2050/0034B60W2510/18B60W2520/10B60W2720/106
Inventor 陈集辉孙崇尚李弼超张超昱
Owner GUANGZHOU XIAOPENG MOTORS TECH CO LTD