CN214492873U

CN214492873U - Vehicle accelerator mistaken stepping prevention control system

Info

Publication number: CN214492873U
Application number: CN202120755118.0U
Authority: CN
Inventors: 欧阳文玉
Original assignee: Shenzhen Zhihui Chelian Technology Co ltd
Current assignee: Shenzhen Zhihui Chelian Technology Co ltd
Priority date: 2021-04-13
Filing date: 2021-04-13
Publication date: 2021-10-26
Anticipated expiration: 2031-04-13

Abstract

The application relates to a vehicle accelerator stepping misoperation prevention control system which comprises a detection mechanism, a detection mechanism and a control mechanism, wherein the detection mechanism is used for detecting whether an obstacle exists within a preset distance in front of a vehicle in a running process and outputting a detection signal when the obstacle exists; the mistaken-stepping pre-judgment mechanism is arranged on the accelerator and used for detecting the instantaneous change amplitude of the position of the accelerator and outputting a mistaken-stepping signal when the instantaneous change amplitude of the position of the accelerator is larger than a preset amplitude value; the control mechanism is electrically connected with the detection mechanism and the mistaken-stepping pre-judgment mechanism, receives and responds to the detection signal output by the detection mechanism and the mistaken-stepping signal output by the mistaken-stepping pre-judgment mechanism, and is used for outputting a control signal for controlling the braking of the vehicle; and the actuating mechanism is electrically connected with the control mechanism, receives and responds to the control signal output by the control mechanism and is used for driving the brake pedal to move to brake the vehicle. The application has the effect of effectively reducing traffic accidents caused by mistakenly stepping on the accelerator.

Description

Vehicle accelerator mistaken stepping prevention control system

Technical Field

The application relates to the field of vehicle engineering technology, in particular to a vehicle anti-mistaken-stepping accelerator control system.

Background

With the increase of economic development and private cars, more and more trainees are provided, and due to the unskilled operation, tension and other states of the trainees during the process of learning the cars or when the trainees are not familiar with driving, the trainees are prone to mistakenly step on the accelerator as a brake when meeting the condition that the brakes are needed. When the mistaken stepping condition occurs, accidents such as property loss, even casualties and the like are easily caused due to the instant acceleration of the vehicle, and the existing running vehicle usually does not have the function of automatic braking.

SUMMERY OF THE UTILITY MODEL

In order to effectively reduce traffic accidents caused by mistaken stepping on the accelerator, the application provides a control system for preventing the mistaken stepping on the accelerator of a vehicle.

The application provides a pair of vehicle prevents mistake and steps on throttle control system adopts following technical scheme:

a vehicle false tip-in prevention control system, comprising:

the detection mechanism is used for detecting whether an obstacle exists within a preset distance in front of the vehicle in running and outputting a detection signal when the obstacle exists;

the mistaken-stepping pre-judgment mechanism is arranged on the accelerator and used for detecting the instantaneous change amplitude of the position of the accelerator and outputting a mistaken-stepping signal when the instantaneous change amplitude of the position of the accelerator is larger than a preset amplitude value;

the control mechanism is electrically connected with the detection mechanism and the mistaken-stepping pre-judgment mechanism, receives and responds to the detection signal output by the detection mechanism and the mistaken-stepping signal output by the mistaken-stepping pre-judgment mechanism, and is used for outputting a control signal for controlling the braking of the vehicle;

and the actuating mechanism is electrically connected with the control mechanism, receives and responds to the control signal output by the control mechanism and is used for driving the brake pedal to move to brake the vehicle.

By adopting the technical scheme, the obstacle is detected by arranging the detection mechanism, the mistaken stepping pre-judgment mechanism is arranged to judge whether the accelerator is mistakenly stepped, the control mechanism receives and processes the detection signal and the mistaken stepping signal so as to judge whether the vehicle accelerator is mistakenly stepped, and when the control mechanism detects that the vehicle accelerator is mistakenly stepped, the control mechanism controls the execution mechanism to drive the vehicle brake, so that the automatic brake of the vehicle is realized, and the occurrence of traffic accidents caused by the mistaken stepping of the accelerator by a driver is reduced.

Optionally, actuating mechanism includes that one end is fixed in the brake rope on the brake pedal and is used for driving the traction assembly of brake rope pulling brake pedal, traction assembly includes driving motor and sets up the seat that turns to between driving motor and brake pedal, it makes to turn to the pulling direction that the seat is used for changing the brake rope when brake rope pulling brake pedal, the direction of motion of the one end that brake rope and brake pedal are connected is the same with the direction of motion of brake pedal.

Through adopting above-mentioned technical scheme, will draw to be connected between subassembly and the brake pedal through the braking rope to when realizing control mechanism output control signal, actuating mechanism can drive the brake pedal and remove and then realize the brake braking of vehicle.

Optionally, the steering seat includes that the unable adjustment base that is used for with vehicle fixed connection sets up the sliding seat on the base with rotating, one side that the sliding seat deviates from unable adjustment base is equipped with the pulley, the braking rope is walked around the pulley and is contradicted with pulley circumference outer wall.

Through adopting above-mentioned technical scheme, through setting up unable adjustment base and sliding seat for the sliding seat can be handed over the end adjustment on unable adjustment base, thereby makes things convenient for the braking rope to be connected the adjustment of the pulling direction of one end with brake pedal, and simultaneously through setting up the pulley, reduces the frictional force that the braking rope turned to the in-process and produced.

Optionally, the detection mechanism includes two sets of obstacle detectors, and the two sets of obstacle detectors are respectively disposed on a head and a tail of the vehicle; the control mechanism is electrically connected with an OBD module or a CAN bus module of the vehicle and used for acquiring the traveling direction of the vehicle.

By adopting the technical scheme, because the vehicle has two conditions of advancing and retreating, the vehicle head and the vehicle tail are respectively provided with the obstacle detectors, so that the condition of mistaken stepping prevention can be realized in the advancing or retreating process of the vehicle, meanwhile, the control mechanism obtains the advancing direction of the vehicle, and the transmission of error signals caused by the detection of the obstacle detectors in the non-advancing direction is reduced.

Optionally, the two sets of obstacle detectors include at least one millimeter wave radar, and a horizontal detection angle of the millimeter wave radar is greater than 120 degrees.

Through adopting above-mentioned technical scheme, the millimeter wave radar is used for detecting the barrier, through the detection angle who sets up the millimeter wave radar with the region of enlarging detection range, reduces the area that the blind area exists.

Optionally, the mistaken-stepping pre-determination mechanism includes a slide rheostat and a voltage monitor, a winding coil of the slide rheostat is disposed on the vehicle, a slide sheet of the slide rheostat is disposed on the accelerator pedal, and when the accelerator pedal is stepped, a position of the slide sheet of the slide rheostat on the winding coil changes, so that a voltage value monitored by the voltage monitor changes.

By adopting the technical scheme, the position of the slide sheet on the slide rheostat is changed, so that the resistance value of the slide rheostat access circuit is changed, the change amplitude of the accelerator pedal is monitored by detecting the change of the voltage value according to the voltage monitor, and the change amplitude of the accelerator pedal is more visual.

In summary, the present application includes at least one of the following beneficial technical effects:

1. whether an obstacle exists in the driving direction of the vehicle is detected by arranging the control system, and whether the accelerator is mistakenly stepped is detected, so that the effect that the brake can be stepped through the execution mechanism when the accelerator is mistakenly stepped is achieved, and the probability of traffic accidents caused by mistakenly stepping on the accelerator is reduced;

2. the obstacle detectors are respectively arranged at the head and the tail of the vehicle, so that the obstacle in the forward and reverse directions can be detected, the obstacle behind the vehicle can be detected during the backing of the vehicle, and the driving safety is further improved;

3. the mistaken-stepping pre-judgment structure judges whether the accelerator is stepped by mistake or not by detecting the voltage change amplitude, and is quicker and more timely than the traditional method that the change of the rotating speed of the vehicle is detected by an OBD module or a CAN bus module, so that the occurrence of traffic accidents under the condition that the vehicle is stepped by mistake is further reduced.

Drawings

FIG. 1 is a block diagram of the overall architecture of an embodiment of the present application;

FIG. 2 is a view showing the installation position of the detecting mechanism of the embodiment of the present application on the vehicle;

FIG. 3 is a control flow diagram of an embodiment of the present application;

FIG. 4 is a block diagram of a mistaken-stepping pre-determination mechanism according to an embodiment of the present application;

FIG. 5 is a schematic diagram of an overall structure of an actuator according to an embodiment of the present disclosure, mainly illustrating a connection relationship between the actuator and a brake pedal;

FIG. 6 is a schematic diagram of an overall structure of an actuator according to an embodiment of the present application;

fig. 7 is an exploded view of a part of the structure of the embodiment of the present application, mainly showing the structure of the steering seat.

Description of reference numerals: 1. a detection mechanism; 11. an obstacle detector; 2. a misstep pre-judging mechanism; 21. a slide rheostat; 22. a voltage monitor; 3. a control mechanism; 4. an actuator; 41. a brake cable; 42. a traction assembly; 421. a drive motor; 422. a steering seat; 4221. a fixed base; 42211. a fixing hole; 4222. a movable seat; 42221. an arc-shaped chute; 4223. a pulley; 4224. a guide piece; 42241. a through hole; 4225. fixing the bolt; 423. and a winding box.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

The embodiment of the application discloses a vehicle is prevented mistake and is stepped on throttle control system. Referring to fig. 1, the control system includes a detection mechanism 1, a mistaken stepping pre-determination mechanism 2, a control mechanism 3, and an execution mechanism 4, wherein:

the detection mechanism 1 is used for detecting whether an obstacle exists within a preset distance in front of the running of the vehicle or not and outputting a detection signal when the obstacle exists;

the mistaken-stepping pre-judgment mechanism 2 is arranged on the accelerator and used for detecting the instantaneous change amplitude of the position of the accelerator and outputting a mistaken-stepping signal when the instantaneous change amplitude of the position of the accelerator is larger than a preset amplitude value;

the control mechanism 3 is electrically connected with the detection mechanism 1 and the mistaken-stepping pre-judging mechanism 2, receives and responds to the detection signal output by the detection mechanism 1 and the mistaken-stepping signal output by the mistaken-stepping pre-judging mechanism 2, and is used for outputting a control signal for controlling the braking of the vehicle;

the actuating mechanism 4 is electrically connected with the control mechanism 3, receives and responds to a control signal output by the control mechanism 3 and is used for driving a brake pedal to move to brake the vehicle;

the control mechanism 3 is electrically connected to the vehicle engine system, and when the control system 3 receives the false stepping signal output by the false stepping pre-determination mechanism 2, the control system 3 generates a safety signal and transmits the safety signal to the vehicle engine system to replace the stepping signal output by the accelerator pedal, so that the vehicle is prevented from suddenly accelerating due to the fact that the vehicle engine system receives the stepping signal (voltage signal) output by the accelerator pedal and generates an excessive torque.

In order to reduce the occurrence of misjudgment and misstep on the accelerator of the control mechanism 3 in the normal running process of the vehicle, when the detection mechanism 1 detects that an obstacle exists in a preset distance range in front of the running of the vehicle and the misstep pre-judgment mechanism 2 detects that the instantaneous change amplitude of the accelerator position is larger than a preset amplitude value at the moment, the control mechanism 3 receives a detection signal output by the detection mechanism 1 and a misstep signal output by the misstep pre-judgment mechanism 2, the control mechanism 3 outputs a control signal to the execution mechanism 4 at the moment, the control mechanism 3 outputs a safety signal to a vehicle engine system, when the execution mechanism 4 receives the control signal, the execution mechanism 4 is started to drive a brake pedal to perform a braking action, and meanwhile, the vehicle engine system receives the safety signal output by the control mechanism 3, so that a voltage stepping signal output by the accelerator pedal received by the vehicle engine system is invalid, thereby reducing the occurrence of the situation that the person steps on the accelerator by mistake.

Referring to fig. 2, the vehicle has two driving conditions of forward and backward movement, and therefore the detection mechanism 1 includes two sets of obstacle detectors 11, the two sets of obstacle detectors 11 are respectively disposed on the head and the tail of the vehicle, the two sets of obstacle detectors 11 include at least one millimeter wave radar, the millimeter wave radar is used for detecting whether there is an object in a certain range, the preset distance of the detection mechanism 1 can be set by setting the detection distance of the millimeter wave radar, and similarly, the obstacle detectors 11 may also be other sensors for detecting whether there is an object, such as an infrared sensor, a sound wave sensor, and the like. In order to detect the barrier that vehicle traveles the place ahead better for barrier detector 11, when the millimeter wave radar is one, the millimeter wave radar sets up in the centre of locomotive or rear of a vehicle bumper, if the millimeter wave radar is two when more than two even, the millimeter wave radar sets up along vehicle width direction interval, for saving the cost in this application, the millimeter wave radar adopts one, and the horizontal detection angle of millimeter wave radar is greater than 120 degrees.

Referring to fig. 2 and 3, in order to prevent the vehicle from braking due to the obstacle detector 11 behind the vehicle detecting an obstacle behind the vehicle during the forward movement of the vehicle, or from braking due to the obstacle detector 11 in front of the vehicle detecting an obstacle ahead of the vehicle during the backward movement of the vehicle, the control mechanism 3 is electrically connected to the OBD module or the CAN bus module of the vehicle, and acquires the shift switch information of the vehicle through the OBD module or the CAN bus module, thereby acquiring the traveling direction of the vehicle. When the vehicle advancing direction acquired by the control mechanism 3 is forward, the obstacle detector 11 positioned on the tail of the vehicle is in a closed state, and the obstacle detector 11 positioned on the head of the vehicle is in a starting state; when the vehicle traveling direction acquired by the control mechanism 3 is backward, the obstacle detector 11 located on the vehicle head is in the off state, and the obstacle detector 11 located on the vehicle tail is in the on state.

Referring to fig. 3 and 4, the mistaken-stepping pre-determination mechanism 2 includes a sliding rheostat 21 and a voltage monitor 22, which are arranged in parallel, wherein the voltage monitor 22 is used for monitoring the variation amplitude of the voltage value distributed by the sliding rheostat 21 within a certain time, and the certain time is preferably less than 1S in the present application; when the position of the accelerator pedal changes, the system CAN acquire the rotating speed of the vehicle more timely and quickly by monitoring the voltage value change of the slide rheostat 21 than a vehicle OBD module or a CAN bus module, so that the response time of the system is shortened. Meanwhile, when the mistaken-stepping pre-judgment mechanism 2 detects that the accelerator of the vehicle is mistakenly stepped, the control mechanism 3 outputs a safety signal to the automobile engine system to replace a stepping signal of the accelerator pedal, so that the automobile engine system cannot receive the stepping signal of the accelerator pedal, and the safety accident caused by the instantaneous acceleration of the vehicle due to the fact that the automobile engine system receives an acceleration signal is prevented from occurring. The winding coil of the slide rheostat 21 is arranged at the fixed end of the accelerator of the vehicle, and the slide sheet of the slide rheostat 21 is arranged on the accelerator pedal, so that the position of the slide sheet is changed along with the position change of the accelerator pedal. When the accelerator pedal is stepped on, the position of the slide sheet of the slide rheostat 21 on the winding coil changes, so that the resistance value of the slide rheostat 21 connected to the circuit changes, and the voltage value monitored by the voltage monitor 22 changes. When the accelerator pedal is mistakenly stepped, the change amplitude of the accelerator pedal is fast, the voltage value change speed monitored by the voltage monitor 22 is fast, and the mistaken stepping pre-judgment mechanism 2 judges that the accelerator is mistakenly stepped; when the variation range of the accelerator pedal is slow, the voltage variation speed monitored by the voltage monitor 22 is slow, and the mistaken-stepping pre-judgment mechanism 2 judges that the accelerator is normally stepped so as to ensure that the vehicle can normally run when slowly moving, parking in a garage or getting out of the garage.

Referring to fig. 5 and 6, the actuator 4 includes a brake cable 41 fixed at one end to the brake pedal and a pulling assembly 42 for pulling the brake cable 41 to pull the brake pedal, and the brake cable 42 is preferably a steel cable. The traction assembly 42 comprises a driving motor 421 and a steering seat 422 arranged between the driving motor 421 and the brake pedal, wherein the steering seat 422 is used for changing the pulling direction of the brake rope 41 so that when the brake rope 41 actuates the brake pedal, the moving direction of one end of the brake rope 41 connected with the brake pedal is the same as that of the brake pedal, so as to prevent the situation that the pulling effect is poor or the brake rope 41 is blocked due to the fact that the pulling direction of the brake rope 41 is different from the moving direction of the brake pedal. The traction assembly 42 further includes a winding box 423 disposed at an output end of the driving motor 421, and when the driving motor 421 is started, the driving motor 421 drives the brake rope 41 to wind, so that the brake rope 41 is wound and contracted in the winding box 423.

Referring to fig. 6 and 7, the steering seat 422 includes a fixed base 4221 for fixedly connecting with a vehicle and a movable seat 4222 rotatably disposed on the fixed base 4221, a pulley 4223 is disposed on one side of the movable seat 4222 away from the fixed base 4221, a guide plate 4224 is fixedly disposed on the movable seat 4222, a through hole 42241 is disposed on the guide plate 4224, the through hole 42241 faces perpendicular to an axis of the pulley 4223, the through hole 42241 is located in the middle of the pulley 4223, and the braking rope 41 passes through the through hole 42241 on the guide plate 4224, then bypasses the pulley 4223, and abuts against the circumferential outer wall of the pulley 4223. In order to facilitate the adjustment of the direction of the connection end of the brake rope 41 and the brake pedal, a plurality of arc-shaped sliding grooves 42221 are circumferentially arranged on the movable seat 4222 at intervals, a plurality of fixing holes 42211 are circumferentially arranged on the fixed base 4221 at intervals, each arc-shaped sliding groove 42221 at least corresponds to one fixing hole 42211, each fixing hole 42211 is in threaded connection with a fixing bolt 4225, after the angle adjustment of the movable seat 4222 and the fixed base 4221 is completed, the movable seat 4221 is in threaded connection with the fixing holes 42211 through the fixing bolts 4225, and at the moment, the nut portion of each fixing bolt 4225 is abutted against the movable seat 4222 and fixes the movable seat 4222 on the fixed base 4221 through friction force.

The implementation principle of the vehicle accelerator misoperation prevention control system in the embodiment of the application is as follows: when the vehicle runs, the control mechanism 3 starts a corresponding obstacle detector 11 in the detection mechanism 1 according to the gear switch information of the vehicle, when the detection mechanism 1 detects that an obstacle exists in a preset distance range in front of the vehicle, and the mistaken stepping pre-judgment mechanism 2 detects that the instantaneous change amplitude of the accelerator position is larger than a preset amplitude value, the control mechanism 3 receives a detection signal output by the detection mechanism 1 and a mistaken stepping signal output by the mistaken stepping pre-judgment mechanism 2, at the moment, the control mechanism 3 outputs a control signal to the execution mechanism 4, and when the execution mechanism 4 receives the control signal, the execution mechanism 4 is started to drive a brake pedal to perform a braking action, so that the condition that a person mistakenly steps on the accelerator is reduced.

The foregoing is a preferred embodiment of the present application and is not intended to limit the scope of the application in any way, and any features disclosed in this specification (including the abstract and drawings) may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

Claims

1. The utility model provides a vehicle prevents mistake and steps on throttle control system which characterized in that: the method comprises the following steps:

the detection mechanism (1) is used for detecting whether an obstacle exists within a preset distance in front of the running of the vehicle or not and outputting a detection signal when the obstacle exists;

the mistaken-stepping pre-judgment mechanism (2) is arranged on the accelerator and used for detecting the instantaneous change amplitude of the position of the accelerator and outputting a mistaken-stepping signal when the instantaneous change amplitude of the position of the accelerator is larger than a preset amplitude value;

the control mechanism (3) is electrically connected with the detection mechanism (1) and the mistaken-stepping pre-judgment mechanism (2), receives and responds to the detection signal output by the detection mechanism (1) and the mistaken-stepping signal output by the mistaken-stepping pre-judgment mechanism (2), and is used for outputting a control signal for controlling the braking of the vehicle;

and the actuating mechanism (4) is electrically connected with the control mechanism (3), receives and responds to the control signal output by the control mechanism (3) and is used for driving the brake pedal to move to brake the vehicle.

2. The system of claim 1, wherein the accelerator pedal misstep prevention control system comprises: actuating mechanism (4) are fixed in brake pedal's braking rope (41) and are used for driving traction assembly (42) of braking rope (41) pulling brake pedal including one end, traction assembly (42) include driving motor (421) and set up turn to seat (422) between driving motor (421) and brake pedal, turn to seat (422) and be used for changing the pulling direction of braking rope (41) and make during braking rope (41) pulling brake pedal, the direction of motion of the one end that braking rope (41) are connected with brake pedal is the same with brake pedal's direction of motion.

3. The system of claim 2, wherein the accelerator pedal misstep prevention control system comprises: turn to seat (422) including being used for with vehicle fixed connection's unable adjustment base (4221) and rotating movable seat (4222) that sets up on the base, one side that movable seat (4222) deviate from unable adjustment base (4221) is equipped with pulley (4223), brake rope (41) are walked around pulley (4223) and are contradicted with pulley (4223) circumference outer wall.

4. The system of claim 1, wherein the accelerator pedal misstep prevention control system comprises: the detection mechanism (1) comprises two groups of obstacle detectors (11), and the two groups of obstacle detectors (11) are respectively arranged on the head and the tail of the vehicle; the control mechanism (3) is electrically connected with an OBD module or a CAN bus module of the vehicle and used for acquiring the traveling direction of the vehicle.

5. The system of claim 4, wherein the accelerator pedal misstep prevention control system comprises: the two sets of obstacle detectors (11) include at least one millimeter wave radar having a horizontal detection angle of greater than 120 degrees.

6. The system of claim 1, wherein the accelerator pedal misstep prevention control system comprises: the mistaken-stepping pre-judging mechanism (2) comprises a slide rheostat (21) and a voltage monitor (22), a winding coil of the slide rheostat (21) is arranged on a vehicle, a slide sheet of the slide rheostat (21) is arranged on an accelerator pedal, and when the accelerator pedal is stepped, the position of the slide sheet of the slide rheostat (21) on the winding coil is changed, so that the voltage value monitored by the voltage monitor (22) is changed.