Vehicle override control method and system based on override mode

A technology that transcends control and vehicles, applied in the field of vehicle control, can solve problems such as rear-end collisions and rollovers, and achieve the effect of ensuring safety

Inactive Publication Date: 2021-04-23
HOZON NEW ENERGY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the overtaking mode, whether the vehicle can overtake and the overtaking speed of the vehicle are closely related to the vehicle distance. If the vehicle distance is too small to overtake or even quickly overtake, there will be risks such as rear-end collisions and rollovers.

Method used

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  • Vehicle override control method and system based on override mode
  • Vehicle override control method and system based on override mode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1: see attached figure 1 As shown, a vehicle overriding control method based on an overriding mode includes the following steps:

[0032] Step 1: Obtain the current distance D between the vehicle and the vehicle in front in the overtaking mode;

[0033] Step 2: Determine the size between the current vehicle distance D and the vehicle distance threshold D1 and vehicle distance threshold D2, where the vehicle distance threshold D1 is the safe distance between vehicles during adaptive cruise, and the vehicle distance threshold D1 is greater than the vehicle distance The distance threshold D2, the vehicle distance threshold D2 is preferably 1 / 3~5 / 6 of the vehicle distance threshold D1, when the current vehicle distance D ≥ the vehicle distance threshold D1, the driver is reminded to accelerate and overtake according to the acceleration required speed, When the vehicle distance threshold D2≤the current vehicle distance D

Embodiment 2

[0036] Embodiment 2: A vehicle overtaking control system based on an overtaking mode, including a storage module, a vehicle distance detection module, a judgment module, a control module, a reminder module, and an adaptive cruise maintenance module;

[0037] The storage module is used to store the vehicle distance threshold D1 and the vehicle distance threshold D2, wherein the vehicle distance threshold D1 is a safe vehicle distance when the vehicle is adaptively cruising, and the vehicle distance threshold D1 is greater than the vehicle distance threshold D2, Moreover, the vehicle distance threshold D2 is 1 / 3~5 / 6 of the vehicle distance threshold D1;

[0038] The vehicle distance detection module is used to obtain the current vehicle distance D between the vehicle and the vehicle in front in the overtaking mode;

[0039] The judging module is communicatively connected with the vehicle distance detection module and the storage module, and is used to judge the size between the ...

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Abstract

The invention discloses a vehicle override control method and system based on an override mode, and the method comprises the steps: 1, obtaining a current vehicle distance D between a vehicle and a front vehicle in the override mode; and 2, judging the current vehicle distance D, a vehicle distance threshold value D1 and a vehicle distance threshold value D2, the vehicle distance threshold value D1 is the safety vehicle distance during vehicle self-adaptive cruise, the vehicle distance threshold value D1 is larger than the vehicle distance threshold value D2, and when the current vehicle distance D is larger than or equal to the vehicle distance threshold value D1, reminding a driver of performing acceleration overtaking according to the acceleration required speed; and when the current vehicle distance D is larger than or equal to the vehicle distance threshold D2 and smaller than the vehicle distance threshold D1, reminding the driver of performing acceleration overtaking according to 40%-60% of the acceleration required speed, and when the current vehicle distance D is smaller than the vehicle distance threshold D2, controlling the vehicle to be kept at the current speed for self-adaptive cruise. According to the method, whether the vehicle can overtake can be determined according to the vehicle distance between the vehicle and the front vehicle, and the overtaking speed is reasonably controlled during overtaking, so that the safety of the vehicle during running is guaranteed.

Description

technical field [0001] The invention relates to the field of vehicle control, in particular to a vehicle overtaking control method and system based on an overtaking mode. Background technique [0002] Adaptive Cruise Control (ACC: Adaptive Cruise Control) is a function of the assisted driving system. It is a technology that realizes vehicle perception, decision-making and longitudinal control through radar and camera sensor fusion technology. The start-stop following car can reduce the driver's driving fatigue to a certain extent. According to the driver's wishes, the following distance between the car and the car in front can be set through the time distance setting. [0003] During the working process of the ACC system, when following the vehicle in front to accelerate, decelerate or cruise at a constant speed, when the driver steps on the accelerator pedal to increase the speed to overtake the vehicle in front or take over the process of driving the vehicle according to t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W30/18B60W50/14B60W30/14
CPCB60W30/14B60W30/18163B60W50/14B60W2720/10B60W2554/802
Inventor 王强曹相军邢斌
Owner HOZON NEW ENERGY AUTOMOBILE CO LTD
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