Vehicle safety overtaking auxiliary system suitable for expressway

Abstract

The invention relates to the field of automobile intelligent control, in particular to a vehicle safety overtaking auxiliary system suitable for an expressway. The safe overtaking auxiliary system is composed of a sensor, a lane changing safety judgment module, a lane changing safety reminding module, an after-lane-changing acceleration safety judgment module and an acceleration safety reminding module. The radars are installed on the left side, the right side, the front portion and the rear portion of the vehicle, blind areas possibly existing in an existing scheme can be eliminated, overtaking safety is improved, the functions of the lane changing reminding module and the speed increasing reminding module are matched, a driver can rapidly know the direction of the unsafe vehicle, and a basis is provided for the driver to adopt an avoiding mode. A vibration reminding mode is used, a driver can perceive the specific position of a dangerous vehicle, and therefore the driver can better avoid the dangerous vehicle, whether acceleration overtaking is dangerous or not can be judged according to the state of a front vehicle and the environment condition when the driver completes the lane and accelerates the overtaking, and if yes, the driver can be reminded through a sound reminding mode, and the driver can be reminded. And the driver stops speeding up and overtakes and even decelerates.

Description

Technical Field

[0001] The present invention relates to the field of automobile intelligent control, and in particular to a vehicle safety overtaking assistance system suitable for highways. Background Art

[0002] When a vehicle is driving on a highway, it often needs to overtake a slow-moving vehicle. However, due to driver fatigue, inattention, vehicle blind spots or other environmental influences, the driver cannot accurately judge the safety of overtaking, which brings certain risks to driving on the highway.

[0003] The existing technology for overtaking assistance generally relies on four corner radars and a front-view camera. There may be blind spots on the left, right and rear sides of the vehicle. When the vehicle encounters a dangerous situation during lane change, the existing technology will remind the driver in the form of sound and light on the left or right side of the vehicle. However, this sound and light reminder cannot distinguish the specific position of the dangerous vehicle on the left or right side, and there is no reminder for the dangerous vehicle behind. Summary of the invention

[0004] In view of the above problems, the present invention proposes a vehicle safety overtaking assistance system suitable for highways, which can eliminate the blind spots existing in the prior art and provide reminders in different ways to assist in safely completing high-speed overtaking. The specific technical solution is as follows: A vehicle safety overtaking assistance system suitable for highways, the safety overtaking assistance system is composed of a sensor, a lane change safety judgment module, a lane change safety reminder module, a lane change after speeding up safety judgment module and a speeding up safety reminder module; The sensors include a front-view camera, a front radar, a left front corner radar, a right front corner radar, a left rear corner radar, a right rear corner radar, a left radar, a right radar, and a rear radar; the camera obtains lane line information, and the radar obtains the distance and speed information of other vehicles relative to the vehicle; Lane change safety judgment module, which receives inputs from steering lever signals, camera signals and radar signals. When the driver gives a lane change signal, it judges whether the lane change process complies with traffic regulations and whether the lane change behavior is safe. The lane change safety judgment module outputs nine states: safe, unsafe in front, unsafe in the left front, unsafe on the left, unsafe in the left rear, unsafe in the right front, unsafe on the right side, unsafe in the right rear, and unsafe in the rear. The lane change safety reminder module receives the status output by the lane change safety judgment module and performs corresponding actions; The speed-up safety judgment module receives inputs of the forward radar signal, the left front corner radar signal, and the right front corner radar signal. When the driver completes the lane change and speeds up, it judges whether the speed-up is safe based on the speed and acceleration status of the vehicle in front, the status of the left and right front vehicles, and the blind spot conditions around the front. The lane change safety judgment module outputs four states: safe, unsafe in front, unsafe in the left front, and unsafe in the right front. The speed-up safety reminder module receives the status output by the speed-up safety judgment module and performs corresponding actions.

[0005] The lane change safety reminder module and the speed increase safety reminder module consist of an in-vehicle sound and light reminder device and a driver's seat vibration device.

[0006] The in-vehicle sound and light reminder device is composed of an in-vehicle left-side sound and light reminder device and an in-vehicle right-side sound and light reminder device; the main driver's seat vibration device is composed of a main driver's seat cushion vibration part and a main driver's seat back vibration part.

[0007] The vibration part of the main driver's seat cushion is composed of a seat cushion right front vibration unit, a seat cushion right side vibration unit, a seat cushion right rear vibration unit, a seat cushion left front vibration unit, a seat cushion left side vibration unit and a seat cushion left rear vibration unit.

[0008] The above-mentioned method for executing the vehicle safety overtaking assistance system applicable to highways is specifically as follows: Step (1) The driver turns the steering lever to the left / right, and the lane change assist system determines through the front camera whether the left / right lane line of the vehicle is changeable. If it is changeable, the next step is to proceed to judgment. If it is not changeable, the left / right side is issued an unsafe state; Step (2) The distance and relative speed between the vehicle and the left front / right front vehicle are determined by the left front / right front corner radar. If it is unsafe, a left front / right front unsafe state is issued; the distance between the vehicle and the left / right side vehicle is determined by the left / right side radar. If it is unsafe, a left / right side unsafe state is issued; the distance between the vehicle and the left rear / right rear vehicle and the relative speed are determined by the left rear / right rear corner radar. If it is unsafe, a left rear / right rear unsafe state is issued; Step (3) The forward radar is used to determine the risk of rear-end collision between the vehicle in front and the vehicle in front. When the forward radar determines that the distance and relative speed between the vehicle in front and the vehicle in front are at risk of rear-end collision, the lane change safety judgment module issues a front unsafe state. The rear radar is used to determine the risk of rear-end collision between the vehicle in rear and the vehicle in front. When the forward radar determines that the distance and relative speed between the vehicle in rear and the vehicle in front are at risk of rear-end collision, the lane change safety judgment module issues a rear unsafe state. Step (4) If the above conditions are all safe, the lane change safety judgment module issues a safe status; Step (5) If the driver completes the safe lane change and speeds up, the speed-up assist system uses the forward radar to determine the risk of rear-end collision between the vehicle and the vehicle in front. When the forward radar determines that the distance and relative speed between the vehicle and the vehicle in front have the risk of rear-end collision, the speed-up safety judgment module issues a front unsafe state; the left front / right front corner radar determines the distance and relative speed between the vehicle and the left front vehicle. If it is unsafe, the left front / right front unsafe state is issued; Step (6) The lane change safety reminder module receives the status output by the lane change safety judgment module and performs corresponding actions; When the lane change safety reminder module receives the safety status sent by the lane change safety judgment module, the sound and light reminder device and the driver's seat vibration device are not triggered; When the lane change safety reminder module receives the front / rear unsafe state sent by the lane change safety judgment module, the left sound and light reminder device in the vehicle and the right sound and light reminder device in the vehicle are both triggered, and the right front vibration unit of the seat cushion and the left front vibration unit of the seat cushion vibrate at the same time; When the lane change safety reminder module receives the left front / left side / left rear unsafe state from the lane change safety judgment module, the left sound and light reminder device in the vehicle is triggered, and the left front / left side / left rear vibration unit of the seat cushion vibrates at the same time; When the lane change safety reminder module receives the right front / right side / right rear unsafe state from the lane change safety judgment module, the right side sound and light reminder device in the vehicle is triggered, and the right front / right side / right rear vibration unit of the seat cushion vibrates at the same time; Step (7) the speed-up safety reminder module receives the status output by the speed-up safety judgment module and performs corresponding actions; When the speed-up safety reminder module receives the safety status sent by the speed-up safety judgment module, the sound and light reminder device and the driver's seat vibration device are not triggered; When the speed-up safety reminder module receives the unsafe state ahead from the speed-up safety judgment module, the left sound and light reminder device in the vehicle and the right sound and light reminder device in the vehicle are both triggered, and at the same time, the right front vibration unit of the seat cushion and the left front vibration unit of the seat cushion vibrate; When the speed-up safety reminder module receives the left front / right front unsafe state from the speed-up safety judgment module, the left / right side sound and light reminder device in the vehicle is triggered, and the left / right front vibration unit of the seat cushion vibrates at the same time.

[0009] The present invention installs radars on the left side, right side, front and rear of the vehicle, which can eliminate the blind spots that may exist in the existing solutions, improve the safety of overtaking, and cooperate with the functions of the lane change reminder module and the speed-up reminder module to allow the driver to quickly know the position of unsafe vehicles, providing a basis for the driver to take evasive measures. The present invention uses a vibration reminder method to allow the driver to perceive the specific position of dangerous vehicles, so that the driver can better avoid dangerous vehicles, and when the driver changes lanes and speeds up to overtake, it can judge whether speeding up to overtake is dangerous according to the state of the vehicle in front and the environmental conditions. If it is dangerous, the driver can stop speeding up to overtake or even slow down through a sound reminder method. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 Schematic diagram of the structure of the present invention. DETAILED DESCRIPTION

[0011] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0012] like Figure 1 As shown, a vehicle safety overtaking assistance system suitable for highways, the safety overtaking assistance system is composed of a sensor, a lane change safety judgment module, a lane change safety reminder module, a lane change after speeding up safety judgment module and a speeding up safety reminder module; The sensors include a front-view camera, a front radar, a left front corner radar, a right front corner radar, a left rear corner radar, a right rear corner radar, a left radar, a right radar, and a rear radar; the camera obtains lane line information, and the radar obtains the distance and speed information of other vehicles relative to the vehicle; Lane change safety judgment module, which receives inputs from steering lever signals, camera signals and radar signals. When the driver gives a lane change signal, it judges whether the lane change process complies with traffic regulations and whether the lane change behavior is safe. The lane change safety judgment module outputs nine states: safe, unsafe in front, unsafe in the left front, unsafe on the left, unsafe in the left rear, unsafe in the right front, unsafe on the right side, unsafe in the right rear, and unsafe in the rear. The lane change safety reminder module receives the status output by the lane change safety judgment module and performs corresponding actions; The speed-up safety judgment module receives inputs of the forward radar signal, the left front corner radar signal, and the right front corner radar signal. When the driver completes the lane change and speeds up, it judges whether the speed-up is safe based on the speed and acceleration status of the vehicle in front, the status of the left and right front vehicles, and the blind spot conditions around the front. The lane change safety judgment module outputs four states: safe, unsafe in front, unsafe in the left front, and unsafe in the right front. The speed-up safety reminder module receives the status output by the speed-up safety judgment module and performs corresponding actions.

[0013] The lane change safety reminder module and the speed increase safety reminder module consist of an in-vehicle sound and light reminder device and a driver's seat vibration device.

[0014] The in-vehicle sound and light reminder device is composed of an in-vehicle left-side sound and light reminder device and an in-vehicle right-side sound and light reminder device; the main driver's seat vibration device is composed of a main driver's seat cushion vibration part and a main driver's seat back vibration part.

[0015] The vibration part of the main driver's seat cushion is composed of a seat cushion right front vibration unit, a seat cushion right side vibration unit, a seat cushion right rear vibration unit, a seat cushion left front vibration unit, a seat cushion left side vibration unit and a seat cushion left rear vibration unit.

[0016] The above-mentioned method for executing the vehicle safety overtaking assistance system applicable to highways is specifically as follows: Step (1) The driver turns the steering lever to the left / right, and the lane change assist system determines through the front camera whether the left / right lane line of the vehicle is changeable. If it is changeable, the next step is to proceed to judgment. If it is not changeable, the left / right side is issued an unsafe state; Step (2) The distance and relative speed between the vehicle and the left front / right front vehicle are determined by the left front / right front corner radar. If it is unsafe, a left front / right front unsafe state is issued; the distance between the vehicle and the left / right side vehicle is determined by the left / right side radar. If it is unsafe, a left / right side unsafe state is issued; the distance between the vehicle and the left rear / right rear vehicle and the relative speed are determined by the left rear / right rear corner radar. If it is unsafe, a left rear / right rear unsafe state is issued; Step (3) The forward radar is used to determine the risk of rear-end collision between the vehicle in front and the vehicle in front. When the forward radar determines that the distance and relative speed between the vehicle in front and the vehicle in front are at risk of rear-end collision, the lane change safety judgment module issues a front unsafe state. The rear radar is used to determine the risk of rear-end collision between the vehicle in rear and the vehicle in front. When the forward radar determines that the distance and relative speed between the vehicle in rear and the vehicle in front are at risk of rear-end collision, the lane change safety judgment module issues a rear unsafe state. Step (4) If the above conditions are all safe, the lane change safety judgment module issues a safe status; Step (5) If the driver completes the safe lane change and speeds up, the speed-up assist system uses the forward radar to determine the risk of rear-end collision between the vehicle and the vehicle in front. When the forward radar determines that the distance and relative speed between the vehicle and the vehicle in front have the risk of rear-end collision, the speed-up safety judgment module issues a front unsafe state; the left front / right front corner radar determines the distance and relative speed between the vehicle and the left front vehicle. If it is unsafe, the left front / right front unsafe state is issued; Step (6) The lane change safety reminder module receives the status output by the lane change safety judgment module and performs corresponding actions; When the lane change safety reminder module receives the safety status sent by the lane change safety judgment module, the sound and light reminder device and the driver's seat vibration device are not triggered; When the lane change safety reminder module receives the front / rear unsafe state sent by the lane change safety judgment module, the left sound and light reminder device in the vehicle and the right sound and light reminder device in the vehicle are both triggered, and the right front vibration unit of the seat cushion and the left front vibration unit of the seat cushion vibrate at the same time; When the lane change safety reminder module receives the left front / left side / left rear unsafe state from the lane change safety judgment module, the left sound and light reminder device in the vehicle is triggered, and the left front / left side / left rear vibration unit of the seat cushion vibrates at the same time; When the lane change safety reminder module receives the right front / right side / right rear unsafe state from the lane change safety judgment module, the right side sound and light reminder device in the vehicle is triggered, and the right front / right side / right rear vibration unit of the seat cushion vibrates at the same time; Step (7) the speed-up safety reminder module receives the status output by the speed-up safety judgment module and performs corresponding actions; When the speed-up safety reminder module receives the safety status sent by the speed-up safety judgment module, the sound and light reminder device and the driver's seat vibration device are not triggered; When the speed-up safety reminder module receives the unsafe state ahead from the speed-up safety judgment module, the left sound and light reminder device in the vehicle and the right sound and light reminder device in the vehicle are both triggered, and at the same time, the right front vibration unit of the seat cushion and the left front vibration unit of the seat cushion vibrate; When the speed-up safety reminder module receives the left front / right front unsafe state from the speed-up safety judgment module, the left / right side sound and light reminder device in the vehicle is triggered, and the left / right front vibration unit of the seat cushion vibrates at the same time.

[0017] The above describes in detail the preferred implementation of this patent, but this patent is not limited to the above implementation. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. A vehicle safety overtaking assistance system suitable for highways, characterized by: The safe overtaking assistance system consists of sensors, a lane change safety judgment module, a lane change safety reminder module, a lane change after speeding up safety judgment module and a speeding up safety reminder module; The sensors include a front-view camera, a front radar, a left front corner radar, a right front corner radar, a left rear corner radar, a right rear corner radar, a left radar, a right radar, and a rear radar; the camera obtains lane line information, and the radar obtains the distance and speed information of other vehicles relative to the vehicle; Lane change safety judgment module, which receives inputs from steering lever signals, camera signals and radar signals. When the driver gives a lane change signal, it judges whether the lane change process complies with traffic regulations and whether the lane change behavior is safe. The lane change safety judgment module outputs nine states: safe, unsafe in front, unsafe in the left front, unsafe on the left, unsafe in the left rear, unsafe in the right front, unsafe on the right side, unsafe in the right rear, and unsafe in the rear. The lane change safety reminder module receives the status output by the lane change safety judgment module and performs corresponding actions; The speed-up safety judgment module receives inputs of the forward radar signal, the left front corner radar signal, and the right front corner radar signal. When the driver completes the lane change and speeds up, it judges whether the speed-up is safe based on the speed and acceleration status of the vehicle in front, the status of the left and right front vehicles, and the blind spot conditions around the front. The lane change safety judgment module outputs four states: safe, unsafe in front, unsafe in the left front, and unsafe in the right front. The speed-up safety reminder module receives the status output by the speed-up safety judgment module and performs corresponding actions.

2. The vehicle safety overtaking assistance system suitable for highways according to claim 1, characterized in that: The lane change safety reminder module and the speed increase safety reminder module consist of an in-vehicle sound and light reminder device and a driver's seat vibration device.

3. A vehicle safety overtaking assistance system suitable for highways according to claim 2, characterized in that: The in-vehicle sound and light reminder device is composed of an in-vehicle left-side sound and light reminder device and an in-vehicle right-side sound and light reminder device; the main driver's seat vibration device is composed of a main driver's seat cushion vibration part and a main driver's seat back vibration part.

4. The vehicle safety overtaking assistance system suitable for highways according to claim 3, characterized in that: The vibration part of the main driver's seat cushion is composed of a seat cushion right front vibration unit, a seat cushion right side vibration unit, a seat cushion right rear vibration unit, a seat cushion left front vibration unit, a seat cushion left side vibration unit and a seat cushion left rear vibration unit.

5. The method for executing a vehicle safety overtaking assistance system applicable to highways according to claim 4, characterized in that: The steps include: Step (1) The driver turns the steering lever to the left / right, and the lane change assist system determines through the front camera whether the left / right lane line of the vehicle is changeable. If it is changeable, the next step is to proceed to judgment. If it is not changeable, the left / right side is issued an unsafe state; Step (2) judging the distance and relative speed between the vehicle and the left front / right front vehicle through the left front / right front corner radar, and if it is unsafe, issuing a left front / right front unsafe state; The distance between the vehicle and the vehicle on the left or right is determined by the left / right radar. If it is unsafe, a left / right unsafe state is issued. The distance and relative speed between the vehicle and the vehicle on the left or right rear are determined by the left / right rear corner radar. If it is unsafe, a left / right rear unsafe state is issued. Step (3) The forward radar is used to determine the risk of rear-end collision between the vehicle and the vehicle in front. When the forward radar determines that the distance and relative speed between the vehicle and the vehicle in front are at risk of rear-end collision, the lane change safety judgment module issues an unsafe state ahead. The rear-facing radar is used to determine the risk of a rear-end collision between the rear vehicle and the vehicle. When the forward-facing radar determines that the distance and relative speed between the rear vehicle and the vehicle are at risk of a rear-end collision, the lane change safety judgment module issues a rear unsafe status. Step (4) If the above conditions are all safe, the lane change safety judgment module issues a safe status; Step (5) If the driver completes the safe lane change and speeds up, the speed-up assist system uses the forward radar to determine the risk of rear-end collision between the vehicle and the vehicle in front. When the forward radar determines that the distance and relative speed between the vehicle and the vehicle in front have the risk of rear-end collision, the speed-up safety judgment module issues a front unsafe state; the left front / right front corner radar determines the distance and relative speed between the vehicle and the left front vehicle. If it is unsafe, the left front / right front unsafe state is issued; Step (6) The lane change safety reminder module receives the status output by the lane change safety judgment module and performs corresponding actions; When the lane change safety reminder module receives the safety status sent by the lane change safety judgment module, the sound and light reminder device and the driver's seat vibration device are not triggered; When the lane change safety reminder module receives the front / rear unsafe state sent by the lane change safety judgment module, the left sound and light reminder device in the vehicle and the right sound and light reminder device in the vehicle are both triggered, and the right front vibration unit of the seat cushion and the left front vibration unit of the seat cushion vibrate at the same time; When the lane change safety reminder module receives the left front / left side / left rear unsafe state from the lane change safety judgment module, the left sound and light reminder device in the vehicle is triggered, and the left front / left side / left rear vibration unit of the seat cushion vibrates at the same time; When the lane change safety reminder module receives the right front / right side / right rear unsafe state from the lane change safety judgment module, the right side sound and light reminder device in the vehicle is triggered, and the right front / right side / right rear vibration unit of the seat cushion vibrates at the same time; Step (7) the speed-up safety reminder module receives the status output by the speed-up safety judgment module and performs corresponding actions; When the speed-up safety reminder module receives the safety status sent by the speed-up safety judgment module, the sound and light reminder device and the driver's seat vibration device are not triggered; When the speed-up safety reminder module receives the unsafe state ahead from the speed-up safety judgment module, the left sound and light reminder device in the vehicle and the right sound and light reminder device in the vehicle are both triggered, and at the same time, the right front vibration unit of the seat cushion and the left front vibration unit of the seat cushion vibrate; When the speed-up safety reminder module receives the left front / right front unsafe state from the speed-up safety judgment module, the left / right side sound and light reminder device in the vehicle is triggered, and the left / right front vibration unit of the seat cushion vibrates at the same time.

Images