阅读说明：本技术 一种车辆油门控制装置及控制方法 (Vehicle accelerator control device and control method ) 是由 乔双梁 于 2019-12-31 设计创作，主要内容包括：本发明公开了一种车辆油门控制装置及油门控制方法,包括：主控制器、图像采集模块、油门控制单元；主控制器内部预先存储有碰撞时间阈值,所述图像采集模块通过第一输入接口与所述主控制器连接,油门控制单元通过第一输出接口与所述主控制器连接；本发明能够有效解决即将有可能发生危险碰撞的情况下司机误踩油门的情况。(The invention discloses a vehicle accelerator control device and an accelerator control method, which comprise the following steps: the system comprises a main controller, an image acquisition module and an accelerator control unit; the collision time threshold is prestored in the main controller, the image acquisition module is connected with the main controller through a first input interface, and the accelerator control unit is connected with the main controller through a first output interface; the invention can effectively solve the problem that a driver mistakenly steps on the accelerator under the condition that dangerous collision is likely to happen.)

1. A vehicle throttle control device, characterized by comprising:

the device comprises a main controller (1), wherein a collision time threshold value and an accelerator pedal opening degree threshold value are stored in the main controller (1) in advance;

the image acquisition module (2) is connected with the main controller (1) through a first input interface, and the image acquisition module (2) is used for acquiring images of a front vehicle;

the accelerator control unit (3), the accelerator control unit (3) through first output interface with main control unit (1) is connected, accelerator control unit (3) are used for controlling accelerator pedal's action.

2. The throttle control device for a vehicle according to claim 1, further comprising: the alarm module (4) is connected with the main controller (1) through a second output interface.

3. A method for controlling an accelerator pedal operation using the accelerator control device for a vehicle according to any one of claims 1 to 2, comprising:

s1: acquiring images of a front vehicle by using the image acquisition module (2) to obtain continuous image information P and P ' and timestamps T and T ' corresponding to the image information P and P ' respectively;

s2: the main controller (1) processes the P and the P 'by utilizing a visual analysis algorithm to obtain the distances S and S' between the vehicle and the front vehicle and obtain the relative speed V between the vehicle and the front vehicle_{Relative to each other}；

S3: judgment V_{Relative to each other}Value of (a) if V_{Relative to each other}If the value of (V) is zero, no operation is performed, if V is_{Relative to each other}If the value of (D) is greater than zero, the collision time T is obtained_{Collision of vehicles}；

S4: will collide with time T_{Collision of vehicles}Comparing with a time-to-collision threshold if said time-to-collision T_{Collision of vehicles}And if the collision time is less than or equal to the collision time threshold value, a control signal is sent to the accelerator control unit (3) to control the opening of the accelerator pedal.

4. The method for controlling the action of an accelerator pedal as claimed in claim 3, wherein the step S4 further comprises:

s41: after receiving the control signal, the accelerator control unit (3) acquires the current opening degree of the accelerator pedal and adjusts the opening degree value of the accelerator pedal to be half of the current value;

s42: and if the action that the driver continues stepping on the accelerator is monitored, continuously adjusting the opening of the accelerator pedal to be half of the current value until the opening of the accelerator pedal is reduced to the threshold value of the opening of the accelerator pedal.

5. The method for controlling the action of the accelerator pedal as claimed in claim 4, wherein in the step S42, when the relative distance during the adjustment process meets the requirement, the opening degree of the accelerator pedal is gradually restored to the original recorded value.

Technical Field

The invention relates to the technical field of automobile safety, in particular to a vehicle accelerator control device and a control method.

Background

At present, with the rapid development of Chinese economy, automobiles become more and more popular, and the frequent occurrence of traffic accidents follows.

However, in the daily driving of an automobile, a traffic accident may occur due to mistaken accelerator pedal stepping, and generally occurs in many driving novices, for example, when a driver is about to collide with a front vehicle, a pedestrian, a building or other obstacles, the first reaction of a general person is braking, but for a driving novice who is not familiar with the positions of the pedals, particularly in an emergency, the position of the brake pedal is easily judged by mistake, so that the operation which should be braking is changed into acceleration, further the collision injury which should be avoided occurs or is aggravated, and if the driver directly brakes, due to the existence of inertia and a lot of vehicles on the road, the rear vehicle and the front vehicle are easily collided due to sudden stop.

Therefore, how to provide an accelerator control device and a control method capable of solving the above problems is a problem that needs to be solved by those skilled in the art.

Disclosure of Invention

In view of the above, the present invention provides a vehicle accelerator control device and a control method, which can effectively solve the problem that a driver mistakenly steps on an accelerator in a situation where a dangerous collision is about to occur.

In order to achieve the purpose, the invention adopts the following technical scheme:

a vehicle throttle control apparatus comprising:

the device comprises a main controller, a vehicle body and a vehicle body, wherein a collision time threshold value and an accelerator pedal opening threshold value are pre-stored in the main controller;

the image acquisition module is connected with the main controller through a first input interface and is used for acquiring images of a front vehicle;

the accelerator control unit is connected with the main controller through a first output interface and used for controlling the action of an accelerator pedal.

The beneficial effect who adopts above-mentioned device does:

preferably, the method further comprises the following steps: and the alarm module is connected with the main controller through a second output interface.

A method of controlling throttle actuation using the vehicle throttle control apparatus of any one of the above, comprising:

s1: acquiring an image of a front vehicle by using the image acquisition module to obtain continuous image information P and P ' and timestamps T and T ' corresponding to the image information P and P ' respectively;

s2: the main controller processes the P and the P 'by utilizing a visual analysis algorithm to obtain the distances S and S' between the vehicle and the front vehicle and obtain the relative speed V between the vehicle and the front vehicle_{Relative to each other}；

S3: judgment V_{Relative to each other}Value of (a) if V_{Relative to each other}If the value of (V) is zero, no operation is performed, if V is_{Relative to each other}If the value of (D) is greater than zero, the collision time T is obtained_{Collision of vehicles}；

S4: will collide with time T_{Collision of vehicles}In case of collisionComparing with a threshold value if the collision time T_{Collision of vehicles}And if the collision time is less than or equal to the collision time threshold, sending a control signal to the accelerator control unit to control the opening of the accelerator pedal.

Preferably, the step S4 further includes:

s41: after receiving the control signal, the accelerator control unit acquires the current opening degree of the accelerator pedal and adjusts the opening degree value of the accelerator pedal to be half of the current value;

s42: and if the action that the driver continues stepping on the accelerator is monitored, continuously adjusting the opening of the accelerator pedal to be half of the current value until the opening of the accelerator pedal is reduced to the threshold value of the opening of the accelerator pedal.

Preferably, in step S42, when the relative distance during the adjustment process meets the requirement, the opening degree of the accelerator pedal is gradually restored to the original recorded value.

Compared with the prior art, the invention discloses a vehicle accelerator control device and a vehicle accelerator control method, which can prevent a driver from mistakenly stepping on an accelerator pedal due to tension when the driver almost collides with a front obstacle, so that the possible collision speed is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic block diagram of a structure provided in embodiment 1 of the present invention;

FIG. 2 is a flow chart of the method of embodiment 2 of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.