Auxiliary brake execution control system of automobile

Abstract

The utility model discloses an auxiliary brake execution control system of an automobile, which belongs to the technical field of brake control, and comprises a device main body arranged on a brake pedal, a length-adjustable connecting piece arranged on the device main body and a driving component used for driving the connecting piece to perform length adjustment action, one end of the connecting piece is connected with the driving assembly, and the other end of the connecting piece is connected with an automobile inner fixing piece. When braking or speed reduction is needed, the length of the connecting piece is driven by the driving assembly to be shortened, the length of the connecting piece is shortened, the brake pedal is pulled to act, and the effect of automatic braking or speed reduction is achieved; the motor is controlled to operate through an upstream CAN signal, and the motor is accurately controlled to be started in time; the motor is controlled to rotate to the needed position through detection data of the angle position sensor, the rotation control precision of the motor is improved, the stepping distance for pulling a brake is accurately controlled, the safety performance of an automobile is improved, and rear-end collision accidents are reduced.

Description

TECHNICAL FIELD

[0001] The utility model mainly relates to brake control technical field, concretely is a kind of auxiliary brake execution control system of car. BACKGROUND

[0002] In today's transportation field, vehicle driving safety is always the top priority. At present, the automobile still relies on the driver to manually operate the brake pedal in terms of brake control. In the face of emergency situations, the driver may not be able to quickly and accurately implement brake operation due to delayed reaction, misjudgment or improper operation, greatly increasing the probability of collision accidents. Especially in the increasingly complex traffic environment, this traditional brake control method brings many hidden dangers to the driving safety of the automobile. In addition, during high-speed driving, the automobile driver needs to pay attention to the dynamic of the vehicle in front at all times and manually adjust the vehicle speed to maintain a safe distance. However, manual operation is difficult to achieve precise control, and once the distance is too close, sudden conditions are likely to cause rear-end accidents, causing serious driving risks and accident losses.

[0003] In summary, there is an urgent need for an auxiliary driving and anti-collision function upgrade for automobiles. There is an urgent need for a more advanced, precise and effective brake technology solution to improve the driving safety of the automobile to reduce the occurrence of rear-end accidents and improve the safety performance of the automobile. UTILITY MODEL CONTENTS

[0004] The utility model technical scheme provides a solution significantly different from the prior art to solve the technical problem of the over-simplified prior art solution, mainly providing an auxiliary brake execution control system for a car to meet the needs of auxiliary driving and anti-collision function upgrade for automobiles, improve the safety performance of the automobile and reduce the occurrence of rear-end accidents.

[0005] The utility model solves the above technical problems by adopting the following technical scheme:

[0006] An auxiliary brake execution control system for a car includes a device main body for installation on a brake pedal, a length-adjustable connecting piece and a drive assembly for driving the connecting piece to perform length adjustment on the device main body, and a sensor for detecting the movement of the brake pedal, one end of the connecting piece is connected with the drive assembly, and the other end is connected with an internal fixing piece of the car.

[0007] Further, the connecting piece is a steel rope, the drive assembly includes a winding reel for winding and unwinding the steel rope, and a drive mechanism for driving the winding reel to rotate.

[0008] Further, the drive mechanism includes a motor, a worm and a worm gear, the worm is fixedly connected with the output shaft of the motor, the worm gear is meshingly located on one side of the worm, and the worm gear is coaxially arranged with and fixedly connected with the winding reel.

[0009] Further, the driving assembly and the sensor are arranged in the shell, one end of the steel rope extends to outside of the shell, a control board for receiving an upstream CAN signal is arranged in the shell, and the control board is electrically connected with the motor and the sensor.

[0010] Further, the motor is fixed in the shell, the worm is rotatably connected with the shell through a shaft sleeve, and a fixing frame is arranged in the shell and located at a side of the output shaft of the motor.

[0011] Further, a rotating body is coaxially arranged at one side of the worm wheel, and the rotating body is rotatably connected with the shell through a first bearing.

[0012] Further, the worm wheel is made of nylon.

[0013] Further, one end of the steel rope connected with a fixing member in the automobile is fixed through a cable fixing device, the cable fixing device comprises a rotating shaft screw for winding the steel rope, and a fastening nut for pressing the steel rope is threadedly matched and arranged on the rotating shaft screw.

[0014] Further, the cable fixing device further comprises a fixing support and an adjusting support, the fixing support is fixedly connected with the fixing member in the automobile through a fixing nut, the adjusting support is arranged on the fixing support through a fixing screw, and the rotating shaft screw is rotatably connected with the adjusting support through a second bearing.

[0015] Further, a plurality of mounting holes for connecting the fixing screws are formed in the fixing support.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] (1) When the brake is needed, the length of the connecting piece is shortened through the driving assembly, the length of the connecting piece is shortened to pull the brake pedal to realize the effect of automatic braking or speed reduction, the CAN communication mode is adopted, the motor is controlled through the upstream CAN signal, the motor is started in time, the motor is controlled to rotate to the required position through the detection data of the angle position sensor, the control rotating precision of the motor is improved, the stepping distance of the brake is accurately controlled, the driver can be helped to shorten the brake distance, the collision accident can be avoided, the vehicle speed can be actively reduced according to the specified speed at high speed, the safe distance is kept, the driving risk and the accident loss are reduced.

[0018] (2) The connecting piece is made of the steel rope, the steel rope occupies small space, the connecting path is diversified, and the steel rope can be applied to different vehicle models.

[0019] The utility model will be explained in detail in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the schematic diagram of the three-dimensional structure of the device main body in the utility model;

[0021] Figure 2 It is the schematic diagram of the structure inside the shell in the device main body of the utility model;

[0022] Figure 3 It is the schematic diagram of the application state of the utility model.

[0023] Reference Signs: 1, motor; 2, shell; 3, fixed frame; 4, worm; 5, shaft sleeve; 6, worm wheel; 7, steel rope; 8, control panel; 9, sensor; 10, first bearing; 11, fixed support; 12, adjusting support; 13, rotating shaft screw; 14, fastening nut; 15, fixed nut; 16, fixed screw; 17, second bearing; 18, mounting screw; 19, mounting frame plate. DETAILED DESCRIPTION

[0024] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings, and the drawings show several embodiments of the utility model, but the utility model can be realized by different forms, and is not limited to the embodiments described in the text, on the contrary, these embodiments are provided to make the disclosed content of the utility model more thorough and comprehensive.

[0025] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there can be a middle element, and when an element is referred to as "connected to" another element, it can be directly connected to the other element or there can be a middle element, and the terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs, and the terms used in the specification of the utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the utility model, and the term "and / or" used herein includes any and all combinations of one or more related listed items.

[0027] Embodiment one: please refer to the drawings Figure 1 and the drawings Figure 2 , an auxiliary brake execution control system of a vehicle, comprising a device main body. The device main body comprises:

[0028] The shell 2 is provided with two half shells which are fastened and connected (detachable) by screws; the shell 2 is provided with at least one set of mounting hole slots for mounting the mounting screws 18, so as to clamp the device main body on the crank of the brake pedal through the mounting screws 18 and the mounting plate 19, and two through holes are formed in the mounting plate 19 for the mounting screws 18 to pass through;

[0029] The motor 1 is arranged in the shell 2 and serves as a power source;

[0030] The fixing frame 3 is arranged in the shell 2 and is arranged on the side of the output shaft of the motor 1;

[0031] The worm 4 is arranged in the shell 2 and is fixedly connected with the output shaft of the motor 1, so as to drive the worm 4 to rotate through the motor 1;

[0032] The shaft sleeve 5 is arranged in the shell 2 and is sleeved on the end of the worm 4 away from the motor 1, so as to realize the rotary connection of the worm 4 and the shell 2;

[0033] The worm wheel 6 is arranged in the shell 2 and is meshingly arranged on the side of the worm 4, so as to drive the worm wheel 6 to rotate through the worm 4;

[0034] The steel rope 7 is connected to the winding disc at one end, and the winding disc is coaxially arranged and fixedly connected with the worm wheel 6, so as to drive the winding disc to rotate through the rotation of the worm wheel 6, thereby realizing the winding and unwinding of the steel rope 7; the other end of the steel rope 7 extends from the gap on one side of the shell 2 to the outside of the shell 2;

[0035] The control board 8 is arranged in the shell 2 and is arranged on the side of the fixing frame 3 facing the motor 1, for receiving the upstream CAN signal and being electrically connected with the motor 1 and the sensor 9;

[0036] The sensor 9 is arranged in the shell 2, a rotating body is coaxially fixed on the side of the worm wheel 6, and the sensor 9 is arranged on the end face of the rotating body; the sensor 9 is a position sensor;

[0037] The first bearing 10 is arranged in the shell 2 and is sleeved on the rotating body.

[0038] In application, the mounting plate 19 is sleeved on the set of mounting screws 18, so that the two mounting screws 18 are respectively located on the upper and lower sides of the crank of the brake pedal, and the mounting plate 19 and the shell 2 are respectively located on the two sides of the crank of the brake pedal, the mounting screws 18 are tightened on the shell 2, and the device main body is clamped on the crank of the brake pedal. Then, the end of the steel rope 7 outside the shell 2 is connected to the fixing member in the brake area.

[0039] When the brake needs to be applied / speed needs to be reduced, the control board 8 receives the upstream CAN (Controller Area Network, a kind of serial communication network capable of realizing distributed real-time control) signal, and then controls the motor 1 to rotate to the required position by the detection data of position sensor 9;The motor 1 rotates, drives the worm 4 to rotate, engages the transmission belt to drive the worm 6 to rotate, and the reel rotates accordingly, so as to wind the steel rope 7, so that the distance between the two ends of the steel rope 7 is shortened, thereby causing the deflection of the crank of the brake pedal, and effectively controlling the precise displacement of pulling the brake pedal by controlling the rotation amount of the motor 1, to achieve the purpose of automatic braking or speed reduction.

[0040] Embodiment two: the difference between this embodiment and embodiment one is that:

[0041] Please refer to the attached drawings Figure 3 One end of the steel rope 7 outside the shell 2 is fixed by a cable fixator.

[0042] The cable fixator comprises:

[0043] The fixed support 11 is fixedly connected with the fixing member below the brake pedal through the fixing nut 15;A plurality of mounting holes for connecting the fixing screws 16 are formed on the fixed support 11;

[0044] The adjusting support 12 is tightly pressed on the fixed support 11 by the fixing screws 16;By adjusting the mounting position of the fixing screws 16, the position of the adjusting support 12 can be adjusted;One end of the adjusting support 12 is folded upwards for mounting the shaft screw 13;

[0045] The shaft screw 13 is rotatably connected to one end of the adjusting support 12 through the second bearing 17, and is used for winding the one end of the steel rope 7 outside the shell 2.

[0046] The fastening nut 14 is threadedly fitted on the shaft screw 13, and is used for pressing the steel rope 7.

[0047] In application, first, the cable fixator is assembled, then the fixed support 11 is fixed on the fixing member below the brake pedal through the fixing nut 15;After the main body of the device is assembled, the one end of the steel rope 7 outside the shell 2 is wound on the shaft screw 13 and straightened, and finally the fastening nut 14 is rotated to press the steel rope 7, that is, the connection of the steel rope 7 is completed.

[0048] The others are the same as embodiment one.

[0049] Embodiment three: the difference between this embodiment and embodiment two is that:

[0050] The worm 6 is made of nylon material, which is different from the existing metal, so as to improve the service life and reduce the weight of the whole product.

[0051] The others are the same as embodiment two.

[0052] In summary, the auxiliary brake execution control system provided by the utility model is accurate in control and stable in action, can automatically brake according to the CAN signal, can help the driver shorten the brake distance and avoid collision accidents, can actively reduce the vehicle speed according to the designation at high speed, and can keep a safe distance, thereby reducing the driving risk and accident loss.

[0053] The utility model is described exemplarily above in combination with the drawings, and obviously, the specific implementation of the utility model is not limited by the above mode, as long as the method concept and technical scheme of the utility model are adopted for this kind of non-essential improvement or the concept and technical scheme of the utility model are directly applied to other occasions without improvement, which are all within the protection scope of the utility model.

Claims

1. An auxiliary braking control system for automobiles, characterized in that: The device comprises a device body for installation on a brake pedal, a length-adjustable connecting member and a driving assembly for driving the connecting member to adjust the length, and a sensor (9) for detecting the movement of the brake pedal, one end of the connecting member being connected with the driving assembly and the other end being connected with an internal fixing member of the vehicle.

2. The supplementary brake execution control system for a vehicle according to claim 1, characterized by: The connecting member is a steel rope (7), and the driving assembly comprises a winding reel for winding and unwinding the steel rope (7) and a driving mechanism for driving the winding reel to rotate.

3. The supplementary brake execution control system for a vehicle according to claim 2, characterized by: The driving mechanism comprises a motor (1), a worm (4) and a worm wheel (6), the worm (4) being fixedly connected with the output shaft of the motor (1), the worm wheel (6) being meshingly arranged on one side of the worm (4) and coaxially arranged with and fixedly connected with the winding reel.

4. The supplementary brake execution control system for a vehicle according to claim 3, characterized by: The driving assembly and the sensor (9) are arranged in a housing (2), one end of the steel rope (7) extending to the outside of the housing (2); the housing (2) is provided with a control board (8) for receiving upstream CAN signals, the control board (8) being electrically connected with the motor (1) and the sensor (9).

5. An auxiliary brake execution control system for a vehicle according to claim 4, characterized by: The motor (1) is fixed in the housing (2), the worm (4) is rotatably connected with the housing (2) through a shaft sleeve (5), and the housing (2) is provided with a fixing frame (3) arranged on the side of the output shaft of the motor (1).

6. The supplemental brake execution control system for a vehicle according to claim 4, characterized by: One side of the worm wheel (6) is coaxially fixed with a rotating body, and the rotating body is rotatably connected with the housing (2) through a first bearing (10).

7. The supplemental brake execution control system for a vehicle according to claim 3, characterized by: The worm wheel (6) is made of nylon material.

8. The supplemental brake execution control system for a vehicle according to claim 2, characterized by: One end of the steel rope (7) connected with the internal fixing member of the vehicle is fixed by a cable fixing device, the cable fixing device comprises a rotating shaft screw (13) for winding the steel rope (7), and the rotating shaft screw (13) is threadedly fitted with a fastening nut (14) for pressing the steel rope (7).

9. The supplemental brake execution control system of claim 8, wherein: The cable fixing device further comprises a fixing support (11) and an adjusting support (12), the fixing support (11) is fixedly connected with the fixing member in the vehicle through a fixing nut (15), the adjusting support (12) is mounted on the fixing support (11) through a fixing screw (16), and the rotating shaft screw (13) is rotatably connected with the adjusting support (12) through a second bearing (17).

10. The supplemental brake execution control system for a vehicle according to claim 9, characterized by: A plurality of mounting holes for connecting the fixing screw (16) are formed in the fixing support (11).

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