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Automatic speed limiting method for vehicle driving-up under adaptive cruise control system

A technology of adaptive cruise and control system, applied in the direction of control device, vehicle components, input parameters of external conditions, etc., can solve problems such as loss of target, danger, loss of target, etc., and achieve the effect of ensuring the safety of climbing

Inactive Publication Date: 2020-12-18
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when the driver drives the ACC vehicle to follow other vehicles uphill, the ACC control unit may lose the target when it reaches the top of the slope, causing danger due to the loss of the target

Method used

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  • Automatic speed limiting method for vehicle driving-up under adaptive cruise control system
  • Automatic speed limiting method for vehicle driving-up under adaptive cruise control system
  • Automatic speed limiting method for vehicle driving-up under adaptive cruise control system

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited thereto.

[0026] Such as figure 1 As shown, taking the conventional vehicle F and the intelligent vehicle E (the vehicle with the ACC control unit) as examples, the scene when the intelligent vehicle E follows the conventional vehicle F uphill is shown. The related quantities involved in the method of the present invention are described as follows:

[0027] (1) Orientation relationship: from left to right: intelligent vehicle E( figure 1 It is shown that when the smart car E follows the conventional vehicle F uphill, the millimeter-wave radar module R cannot detect the vehicle in front and loses the critical position of the target) and the conventional vehicle F.

[0028] (2) On-vehicle equipment: the millimeter-wave radar module R and sensor module V mounted on the smart vehicle...

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Abstract

The invention provides an automatic speed limiting method for vehicle driving-up under an adaptive cruise control system, and belongs to the field of intelligent vehicle driving assistance. The automatic speed limiting method comprises the following steps of: obtaining slope of a road by a sensor module, obtaining a maximum allowable speed of the slope by an ACC function control module, and comparing a real-time travelling speed while an intelligent vehicle reaches a critical state with the maximum allowable speed; enabling the vehicle to drive up according to normal speed while the real-timetraveling speed is smaller than or equal to the maximum allowable speed; and while the real-time traveling speed is greater than the maximum allowable speed, obtaining deceleration of the intelligentvehicle by the ACC function control module, and controlling a motor and a brake pedal to realize deceleration of the intelligent vehicle. The automatic speed limiting method ensures driving-up safetyby taking a condition that a follow-up conventional vehicle possibly disappears into consideration while a vehicle with the ACC control unit reaches the crest of a slope.

Description

technical field [0001] The invention belongs to the field of intelligent vehicle driving assistance, and in particular relates to a method for automatically limiting the speed of a vehicle uphill under an adaptive cruise control system. Background technique [0002] Advanced Driver Assistance Systems (ADAS for short) have been popularized in vehicles driving on urban roads. Among them, Adaptive Cruise Control (ACC, Adaptive Cruise Control) is currently the most widely used driver assistance system. Adaptive cruise control system is an intelligent automatic control system, which is developed on the basis of cruise control technology. When the vehicle is running, the vehicle distance sensor (radar) installed in the front of the vehicle continuously scans the road ahead of the vehicle, and the wheel speed sensor collects the vehicle speed signal at the same time. When the distance to the vehicle in front is too small, the ACC control unit passes and brakes The anti-lock braki...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W30/14B60W40/105B60W40/076B60W10/08B60W10/18
CPCB60W10/08B60W10/18B60W30/146B60W40/076B60W40/105B60W2520/10B60W2710/08B60W2710/18B60W2720/10B60W2552/15
Inventor 陈燎朱雅晶盘朝奉梁军袁朝春张厚忠
Owner JIANGSU UNIV
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