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A step-by-step driving method and system for an autonomous driving system

A technology of autonomous driving and service braking, which is applied to the driver's input parameters, control devices, vehicle components, etc., to improve the mobility and reduce the minimum step size.

Active Publication Date: 2018-11-06
ZHENGZHOU YUTONG BUS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for autonomous driving technology, the current state of the art is blank in this field

Method used

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  • A step-by-step driving method and system for an autonomous driving system
  • A step-by-step driving method and system for an autonomous driving system
  • A step-by-step driving method and system for an autonomous driving system

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Experimental program
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Embodiment Construction

[0015] The technical solution of the present invention will be further elaborated below in conjunction with the accompanying drawings.

[0016] Embodiment of step-by-step driving method of autonomous driving system

[0017] Such as figure 1 As shown, the method of this embodiment is: the controller sends the throttle opening instruction to the electronic throttle according to the preset parameters, and the electronic throttle receives the throttle opening instruction and responds; when the sent throttle opening instruction reaches the set sending After the number of times or the duration of the transmission, stop sending the accelerator opening command and immediately send the braking command to the electronic parking system or the service brake system. When the vehicle stops moving, a step driving is completed.

[0018] In this process, if it is a digital signal, the step size is determined by the throttle opening size x sent, the number of times n sent and the cycle T sent ...

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Abstract

The invention relates to a stepping drive method and system of an autonomous driving system. The method includes the steps that a controller sends a throttle opening command to an electronic throttle according to preset parameters, and the electronic throttle receives and responds to the throttle opening command; and after the sending number of times of the throttle opening command reaches a set number of times or the throttle opening command is sent for a duration, the controller stops sending the throttle opening command and immediately sends a brake command to an electronic parking system or a drive brake system, and after an automobile stops, one time of stepping drive is completed. The system comprises the controller, the electronic throttle capable of being controlled by the electronic throttle opening command and the electronic parking system / drive brake system capable of being controlled by the controller, and the controller is connected with the electronic throttle and the electronic parking system / drive brake system. By means of the stepping drive method and system of the autonomous driving system, the automobile can run by a small distance, the locomotivity of the autonomous driving automobile in a small space is improved, and compared with manual control, the minimum step length which stepping drive can reach is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of automatic driving, and in particular relates to a step-by-step driving method and system of an autonomous driving system. Background technique [0002] Autonomous driving is a technology that is increasingly developed in vehicles. In the process of autonomous driving, the driving behavior of the vehicle must be able to meet the various needs of driving on the road. In the actual driving process of an autonomous vehicle, its step-by-step driving ability is a very important part, which determines the accuracy of vehicle displacement. The so-called step driving means that the vehicle can move with its smallest or smaller step size. Pedestrian driving is very important for the movement of vehicles in small spaces, such as in congestion, reversing, parking and other situations. The minimum step size of walking is directly related to the mobility of the vehicle in a small space. With good cognition, human dr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W10/06B60W10/184B60W10/18B60W30/18
CPCB60W10/06B60W10/182B60W10/184B60W30/18009B60W2510/18B60W2540/10
Inventor 李珺刘伟
Owner ZHENGZHOU YUTONG BUS CO LTD