Longitudinal control method, device and system for auxiliary driving and storage medium

A technology for longitudinal control and assisted driving, applied in the field of devices, systems, storage media, and longitudinal control methods for assisted driving, which can solve problems such as slow response, and achieve the effects of avoiding losses or errors, speeding up efficiency, and improving accuracy

Inactive Publication Date: 2020-12-04
上海元城汽车技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the distance between the vehicle in front and the main vehicle is far away, the response to the acceleration of the main vehicle is slow. Therefore, there is an urgent need for a method for quick response when the vehicle accelerates.

Method used

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  • Longitudinal control method, device and system for auxiliary driving and storage medium
  • Longitudinal control method, device and system for auxiliary driving and storage medium
  • Longitudinal control method, device and system for auxiliary driving and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] figure 2 It is a schematic flow chart of a longitudinal control method for assisted driving provided by the embodiment of the present invention. This embodiment is applicable to the case of vehicle longitudinal control in the state of adaptive cruise control in electric vehicles. The method can be controlled by assisted driving The longitudinal control system is implemented, which can be implemented in the form of software and hardware.

[0040] Such as figure 2 Said, the method of the embodiment of the present invention specifically includes the following steps:

[0041] S210. The vehicle controller receives the target vehicle speed information sent by the advanced driving assistance subsystem, and the actual vehicle speed information sent by the electronic stability control subsystem.

[0042]Among them, the target vehicle speed information includes the current expected vehicle speed of the vehicle, and the actual vehicle speed of the vehicle in front is obtained ...

Embodiment 2

[0051] image 3 It is a schematic flowchart of a longitudinal control method for assisted driving provided by the embodiment of the present invention. This embodiment is optimized on the basis of the above-mentioned embodiment, and the technical terms that are the same as or corresponding to those in the above-mentioned embodiment will not be repeated here. .

[0052] see image 3 , the longitudinal control method for assisted driving provided by the embodiment of the present invention includes:

[0053] S310. The vehicle controller receives the target vehicle speed information sent by the advanced driving assistance subsystem and the actual vehicle speed information sent by the electronic stability control subsystem.

[0054] S320. The vehicle controller determines acceleration information based on the target vehicle speed information and the actual vehicle speed information.

[0055] S330. When the vehicle controller determines that the vehicle is accelerating based on th...

Embodiment 3

[0071] Figure 4 It is a schematic structural diagram of a longitudinal control device for assisting driving provided by an embodiment of the present invention. The longitudinal control device for assisting driving is configured in a vehicle controller, and the device includes:

[0072] The vehicle speed information receiving module 410 is used to receive the target vehicle speed information sent by the advanced driving assistance subsystem, and the actual vehicle speed information sent by the electronic stability control subsystem; the acceleration information determination module 420 is used to receive the information based on the target vehicle speed information and the actual The vehicle speed information determines the acceleration information; the vehicle acceleration control module 430 is configured to control the rotation of the motor of the vehicle based on the positive torque determined based on the acceleration information when the vehicle acceleration is determined ...

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Abstract

The invention discloses a longitudinal control method, device and system for auxiliary driving and a storage medium. The method comprises the steps that a vehicle control unit receives target vehiclespeed information sent by an advanced driving auxiliary subsystem and actual vehicle speed information sent by an electronic stability control subsystem; the vehicle control unit determines acceleration information based on the target vehicle speed information and the actual vehicle speed information; and when the vehicle control unit determines that the vehicle accelerates based on the acceleration information, the vehicle control unit makes a vehicle motor rotate based on a positive torque determined by the acceleration information so as to make the vehicle accelerate. The driving auxiliarysubsystem only calculates the target vehicle speed information and sends the target vehicle speed information to the vehicle control unit , the acceleration and subsequent positive torque are calculated in the vehicle control unit, and the positive torque directly acts on the vehicle motor so that the calculation efficiency is improved, a problem of losses or an error of data transmission is alsoavoided, and calculation accuracy is improved.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of driving assistance, and in particular, to a longitudinal control method, device, system and storage medium for driving assistance. Background technique [0002] With the advent of the era of artificial intelligence, intelligent vehicles have become a research hotspot today. Adaptive Cruise Control (ACC) technology is a widely used speed control method in smart vehicles today. [0003] The ACC technology senses the distance between the front vehicle and the main vehicle in the lane where the main vehicle is currently driving and adjusts the speed of the main vehicle to keep the main vehicle and the front vehicle at a predetermined distance, thereby preventing collisions. However, when the distance between the front vehicle and the main vehicle is relatively long, the response to the acceleration of the main vehicle is relatively slow. Therefore, a method for quick response when the v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W30/14B60W30/16B60W40/105B60W40/10
CPCB60W30/143B60W30/16B60W40/105B60W40/10
Inventor 张峻王剑威周建国朱勤文牛胜福
Owner 上海元城汽车技术有限公司
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