Coach self-adaptive cruise control system and control method thereof

An adaptive cruise and passenger car technology, which is applied to the passenger car adaptive cruise system and its control field, can solve the problems of detection of the state of the preceding vehicle and the vehicle and the single braking method, and achieve a stable and comfortable braking process and comprehensive detection methods. Effect

Active Publication Date: 2013-09-25
ZHENGZHOU YUTONG BUS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a passenger car adaptive cruise system and its control method,

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  • Coach self-adaptive cruise control system and control method thereof
  • Coach self-adaptive cruise control system and control method thereof

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Example Embodiment

[0018] The present invention will be further described in detail below in conjunction with the drawings.

[0019] Such as figure 1 The system structure shown includes: central decision control module, preceding vehicle detection module, own vehicle detection module, engine control module, retarder control module, ABS control module, display and alarm module, adaptive cruise system switch (ACC system switch ).

[0020] The specific workflow is as figure 2 As shown, it is divided into background monitoring, two states of activation and three modes of cruise control, auto following and collision management. Among them, cruise mode and auto following mode work in the active state, and collision control works in two states. under.

[0021] When the vehicle ignition is started, the functional modules of the adaptive cruise system are initialized. When the vehicle speed is greater than 30km / h, it enters the background monitoring state. The vehicle detection module and the vehicle detecti...

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Abstract

The invention relates to a coach self-adaptive cruise control system and a control method thereof. The coach self-adaptive cruise control system comprises a central decision control module. The central decision control module is connected with a front-vehicle detecting module and a vehicle detecting module in a sampling manner and connected with an engine control module, a retarder control module and an ABS (antilock braking system) control module in a control manner. The coach self-adaptive cruise control system had the advantages that multiple front-vehicle state detecting methods and vehicle state detecting methods are used, the detecting methods are comprehensive, and front-vehicle speed, relative vehicle distance, relative speed, transverse distance, vehicle driving conditions and driver's operation information can be detected effectively and transmitted to the central decision control module; braking manners are diversified, engine output power adjusting, engine exhaust braking, retarder first-gear braking and retarder second-gear braking are started stage by stage under different states until ABS braking, and the braking process is stable and comfortable.

Description

technical field [0001] The invention relates to an adaptive cruising system of a passenger car and a control method thereof. Background technique [0002] Adaptive cruise control system (ACC), also known as active cruise control system, is based on the traditional cruise control system (CC), adding an additional detection module in the forward direction of the vehicle, by detecting obstacles in front of the vehicle Vehicle status, so as to control the cruising speed of the vehicle to maintain a stable following distance. At this stage, the ACC system based on Electronic Brake System (EBS) is used in passenger cars. The EBS system replaces the valves and pipelines of the traditional braking system with electric wires, thereby replacing the mechanical transmission with electronic control, reducing the lag of the mechanical transmission, and thus improving the braking performance; but due to the current EBS The high cost leads to a low utilization rate in the passenger car fi...

Claims

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Application Information

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IPC IPC(8): B60W30/16B60W30/14B60W10/06B60W10/18B60W10/10
Inventor 吕金桐李会仙刘伟徐振军杨宁李明
Owner ZHENGZHOU YUTONG BUS CO LTD
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