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Vehicle braking deceleration determination method and device and vehicle

A braking deceleration and vehicle braking technology, applied in the field of on-board data storage, can solve problems such as poor ride experience and unstable braking deceleration

Active Publication Date: 2019-10-25
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a vehicle braking deceleration determination method, device and automobile to solve the problem in the prior art that the vehicle has a bad ride experience due to unstable braking deceleration under the state of automatic driving

Method used

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  • Vehicle braking deceleration determination method and device and vehicle
  • Vehicle braking deceleration determination method and device and vehicle
  • Vehicle braking deceleration determination method and device and vehicle

Examples

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Embodiment Construction

[0078] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0079] refer to figure 1 , the present invention provides a method for determining vehicle braking deceleration, comprising:

[0080] Step 101, when the vehicle is in an automatic driving state, determine the current driving mode of the vehicle.

[0081] Among them, the self-driving state of the vehicle refers to the state in which the accelerator and brake of the vehicle are independently controlled by the vehicle, and the driver does not nee...

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Abstract

The invention relates to a vehicle braking deceleration determination method and device and a vehicle, and aims to solve the problem of poor riding experience caused by unstable braking deceleration of a vehicle in an automatic driving state in the prior art. The vehicle braking deceleration determination method comprises the following steps that when the vehicle is in an automatic driving state,the current driving mode of the vehicle is determined; when the current driving mode of the vehicle is a cruising mode, the target braking deceleration of the vehicle at the current moment is determined according to relevant running parameters of the vehicle; and when the current driving mode of the vehicle is a vehicle following mode, the target braking deceleration of the vehicle at the currentmoment is determined according to relevant driving parameters of the vehicle and a front vehicle, and the front vehicle refers to a vehicle that is located in front of a lane on which the vehicle travels and has a longitudinal distance from the vehicle within a predetermined distance range.

Description

technical field [0001] The invention relates to the field of vehicle data storage, in particular to a method and device for determining vehicle braking deceleration and a vehicle. Background technique [0002] In the process of developing the longitudinal function of automatic driving, people hope that the vehicle can maintain the same speed as the vehicle in front, and at the same time maintain an ideal safety distance. When the state of the front vehicle is stable, the above two conditions are easier to meet. When the state of the vehicle in front changes (such as acceleration and deceleration, cutting in and out, etc.), how to control the accelerator and brake of the autonomous vehicle to adapt to the change in the state of the vehicle in front is a difficult point in the vertical development of automatic driving. Especially in the braking process, in addition to safety issues, ride comfort issues should also be taken into consideration. A braking deceleration planning ...

Claims

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Application Information

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IPC IPC(8): B60W30/14B60W40/10B60W40/105B60W40/00
CPCB60W30/14B60W30/143B60W40/00B60W40/10B60W40/105
Inventor 张欢庆周增碧
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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