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Vehicle adaptive cruise control method and system

A technology of adaptive cruise and control method, applied in the direction of control devices, vehicle components, external condition input parameters, etc., can solve problems such as potential safety hazards, and achieve the effect of improving safety

Active Publication Date: 2019-11-01
SAIC MOTOR
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] However, when using the existing ACC system to control the vehicle, there are still potential safety hazards

Method used

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  • Vehicle adaptive cruise control method and system
  • Vehicle adaptive cruise control method and system
  • Vehicle adaptive cruise control method and system

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Embodiment Construction

[0026] Most of the current ACC systems are developed based on straight roads, and it is difficult to accurately identify slopes. For example, if figure 1 As shown, when the vehicle 11 has not driven into the ramp 12, if the vehicle (not shown) in front of the vehicle 11 is already on the ramp, the radar at the front of the vehicle 11 will mistakenly believe that there is an obstacle after detecting the bump on the road. According to the detection results of the vehicle's radar, the ACC system of the vehicle 11 will control the vehicle to decelerate unnecessarily, resulting in potential safety hazards in driving the vehicle.

[0027] In view of the above problems, the embodiment of the present invention provides a vehicle adaptive cruise control method. By applying the method, when the raised height of the road in the driving direction of the vehicle reaches a preset height value, the navigation information of the vehicle can be combined to achieve more accurate cruise control....

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Abstract

The invention provides a vehicle self-adaptive cruise control method and system. The method includes acquiring navigation information of a vehicle when detecting the raised height of a road in the driving direction of the vehicle reaches a preset height value; judging whether a slope exists in the driving direction of the vehicle through combination of acquired navigation information; calculatingthe slope value of the slope when the slope exists in the driving direction of the vehicle; controlling the driving of the vehicle according to the calculated slope value. By adopting the above scheme, safety during control over the vehicle by utilizing an ACC system can be improved.

Description

technical field [0001] The invention relates to the technical field of vehicle control, in particular to a vehicle adaptive cruise control method and system. Background technique [0002] During the driving process of the vehicle, the Adaptive Cruise Control (ACC) system can adapt the vehicle to the current traffic conditions by adjusting the speed of the vehicle. [0003] Specifically, the front end of the vehicle is usually provided with a radar, through which the ACC system can obtain whether there is a slower vehicle on the road ahead of the vehicle. If there is a slower vehicle, the ACC system will reduce the speed of the vehicle and control the speed of the vehicle or the distance between the vehicle and the vehicle in front. If the ACC system detects that the vehicle in front is not on the vehicle's driving road, it will accelerate the vehicle's speed to return to the speed before reducing the speed. [0004] Through the control of the ACC system, the vehicle can au...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W30/14B60W30/16
CPCB60W30/14B60W30/16B60W2520/10B60W2550/142
Inventor 李峰翟辉冬岳清玉吴平友张海涛
Owner SAIC MOTOR
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