Hydraulic driving device of automobile brake mechanism

Abstract

The utility model relates to a hydraulic driving device of an automobile brake mechanism, which is characterized in that a motor execution device is connected with a brake master cylinder, the brake master cylinder is connected with a brake sub-cylinder through an oil pipe, and the brake sub-cylinder is connected with an original automobile brake or a clutch pedal in a main cab; an oil pressure sensor is arranged on the oil pipe; a position sensor is arranged on an original vehicle brake pedal; the brake master cylinder is provided with a brake oil can, brake oil is injected into an oil pipe from the brake master cylinder by controlling the motor execution device to act, then the brake oil is injected into the brake sub-cylinder, a piston in the brake sub-cylinder stretches and retracts front and back in the brake sub-cylinder along with swing of a swing arm of the motor execution device, and an original vehicle brake pedal is driven to be treaded down or reset to achieve the brake function. The brake system is driven by an oil way, the performance is stable, the failure rate is low, and therefore higher safety and reliability are guaranteed. In addition, braking can be actively assisted, the force applied to the feet of the driver is relieved, and then the driving comfort is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile auxiliary brakes, in particular to a hydraulic drive device for an automobile brake mechanism. Background Art

[0002] With the continuous progress and development of society, motor vehicles have become a vital core tool in my country's transportation sector. Given the rapid growth in the number of motor vehicles, a large number of novice drivers and driving trainees have flooded the road. These novice drivers and trainees, still in the initial stages of mastering or learning driving skills, often experience psychological tension and anxiety when behind the wheel. This anxiety can lead to an inability to quickly and accurately apply the brakes in emergency situations, or lead to driving errors, increasing the likelihood of traffic accidents. These traffic accidents not only pose a serious threat to the lives of drivers and passengers, but also cause significant damage to public and private property.

[0003] In order to effectively reduce the occurrence of such accidents and ensure the safety and smoothness of road traffic, it is particularly important to take effective preventive measures. Among them, installing an auxiliary braking mechanism is considered to be a very promising solution.

[0004] Most of the active braking mechanism solutions currently available on the market use a drive actuator to directly or indirectly control the displacement of the brake pedal, or use a drive actuator to drive the displacement of a cable to control the displacement of the original vehicle's brake pedal and clutch pedal to achieve the effect of braking or not braking. However, the existing mechanical linkage auxiliary brake device and cable device have high requirements for structure and quality. When the brake or clutch pedal is stepped on, the sole of the foot is prone to interference with the mechanical linkage auxiliary brake device, posing a safety hazard; the cable of the cable auxiliary brake device is prone to breakage, and the maintenance and replacement costs are high. The actuators of the above two solutions are not compatible with all vehicle models, and some components of the mechanical linkage auxiliary brake device and cable device will take up a large space when installed in the passenger compartment, affecting the movement space of the person in the passenger seat.

[0005] Therefore, those skilled in the art urgently need to develop an auxiliary braking mechanism that can effectively protect the lives of drivers and passengers, significantly reduce property losses caused by traffic accidents, and ensure smooth and safe road traffic. Utility Model Content

[0006] In light of the shortcomings of current related technologies, the present invention provides a hydraulic drive device for automobile brake mechanisms. This device automatically intervenes in the event of driver error or delayed response, assisting the driver in emergency braking and significantly reducing the risk of traffic accidents. This not only effectively protects the lives of drivers and passengers, but also significantly reduces property damage caused by traffic accidents, ensuring smooth and safe road traffic.

[0007] To achieve the above-mentioned object, the first aspect of the present invention provides a hydraulic drive device for a vehicle brake mechanism, which at least includes an original vehicle brake pedal, a position sensor, a brake cylinder, an oil pipe, an oil pressure sensor, a brake master cylinder, a motor actuator, a control signal line, a vehicle controller, and a vehicle obstacle detection device; wherein

[0008] The motor actuator is connected to the brake master cylinder, which is connected to the brake sub-cylinder via an oil pipe, and the brake sub-cylinder is connected to the original vehicle brake or clutch pedal in the main cab; the oil pipe is equipped with an oil pressure sensor, and the original vehicle brake pedal is equipped with a position sensor; the brake master cylinder is equipped with a brake oil tank, which controls the operation of the motor actuator to inject brake oil from the brake master cylinder into the oil pipe and then into the brake sub-cylinder, causing the piston in the brake sub-cylinder to extend and retract in the brake sub-cylinder as the swing arm of the motor actuator swings, driving the original vehicle brake pedal to be depressed or returned to its original position to achieve the braking function;

[0009] When the vehicle obstacle detection device detects an approaching obstacle, the vehicle controller sends a signal to control the motor actuator to drive the brake master cylinder, which in turn drives the brake slave cylinder through the brake oil to achieve vehicle braking. When the pedal is stepped on, the position sensor detects the signal and transmits it to the vehicle controller. The vehicle controller sends a signal to control the motor actuator to indirectly drive the brake slave cylinder to help step on the original vehicle's brake pedal. When the position sensor senses that the original vehicle's brake pedal has reached the bottom, the vehicle controller sends a signal to control the motor actuator to stop moving.

[0010] Furthermore, the motor actuator is provided with a swing arm and a push rod which can push the piston of the oil circuit brake master cylinder to move, and the push rod of the motor actuator is connected to the piston of the oil circuit brake master cylinder.

[0011] Furthermore, the motor actuator is provided with a mounting bracket, and the motor actuator with the mounting bracket and the oil circuit brake master cylinder are fixed in the trunk of the car.

[0012] Furthermore, the signal transceiver of the motor actuator is connected to the vehicle controller via a control signal line to receive the action execution signal from the vehicle controller.

[0013] Furthermore, both ends of the oil pipe are provided with threaded joints, and the threaded joints at both ends of the oil pipe are connected to the brake master cylinder and the brake sub-cylinder respectively.

[0014] Furthermore, the brake cylinder has an installation fixing hole, and the brake cylinder is fixed on the original vehicle brake pedal fixing bracket in the main driving cab. One end of the brake cylinder is connected to the oil pipe, and the other end has a piston. One end of the brake cylinder piston is connected to the original vehicle brake pedal.

[0015] Furthermore, the oil pressure sensor is provided with a signal transmission device connected to the vehicle controller via a control signal line to output the pressure of the oil pipe, thereby facilitating fault detection of the brake oil circuit.

[0016] Furthermore, the position sensor is provided with a signal transmission device connected to the vehicle controller via a control signal line to output the position signal of the original vehicle brake pedal in real time.

[0017] The present invention adopts the above technical solution, which has at least the following beneficial effects:

[0018] 1. The device provided by this utility model can automatically intervene in the event of driver error or slow reaction, assisting the driver in performing emergency braking, thereby significantly reducing the risk of traffic accidents. This not only effectively ensures the safety of the driver and passengers, but also significantly reduces property damage caused by traffic accidents, thereby ensuring smooth and safe road traffic.

[0019] 2. The utility model is based on the installation of hydraulic brake components in the main cab, and the active brake components can be flexibly installed in the rear space or the trunk space, avoiding occupying the activity space of the co-pilot.

[0020] 3. The utility model is easy to install and operate, the installation location is flexible to choose, and the performance is stable and reliable. It can effectively solve the problems of existing mechanical auxiliary brake devices or cable auxiliary brake devices that are prone to interference, breakage, high maintenance costs, and occupying co-pilot space during installation.

[0021] 4. This utility model can proactively apply the brake or clutch pedal when sensing it, thereby reducing the driver's foot effort and improving driver comfort. Furthermore, when the vehicle's obstacle detection device detects an obstacle, it can proactively apply the brakes, effectively reducing the likelihood of danger.

[0022] 5. The present invention has wide adaptability and can be installed on all vehicle models without any installation limitations. The present invention uses an oil circuit to drive the braking system, which has stable performance and a low failure rate, thereby ensuring higher safety and reliability. During driving, the present invention can respond to the received signal and actively drive the braking mechanism to perform the braking operation. The present invention uses a hydraulic drive structure for braking, and the braking process is gentle and sensitive, effectively avoiding the driver's sense of frustration. In addition, the present invention can also actively assist in braking, reducing the driver's foot force, thereby improving driving comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 The utility model is a structural diagram of a hydraulic drive device for an automobile brake mechanism.

[0025] In the figure: 1. Original vehicle brake pedal; 2. Position sensor; 3. Brake cylinder; 4. Oil pipe; 5. Oil pressure sensor; 6. Brake master cylinder; 7. Motor actuator; 8. Control signal line; 9. Vehicle controller; 10. Vehicle obstacle detection device. DETAILED DESCRIPTION

[0026] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with certain aspects of the present invention, as detailed in the appended claims.

[0027] like Figure 1 As shown, this embodiment provides a hydraulic drive device for a vehicle brake mechanism, which at least includes an original vehicle brake pedal 1, a position sensor 2, a brake cylinder 3, an oil pipe 4, an oil pressure sensor 5, a brake master cylinder 6, a motor actuator 7, a control signal line 8, a vehicle controller 9, and a vehicle obstacle detection device 10; wherein

[0028] The motor actuator 7 is connected to the brake master cylinder 6, and the brake master cylinder 6 is connected to the brake sub-cylinder 3 through the oil pipe 4, and the brake sub-cylinder 3 is connected to the original vehicle brake or clutch pedal in the main cab; the oil pipe 4 is equipped with an oil pressure sensor 5, and the original vehicle brake pedal 1 is equipped with a position sensor 2; the brake master cylinder 6 is equipped with a brake oil tank, and by controlling the action of the motor actuator 7, the brake oil is injected from the brake master cylinder 6 into the oil pipe 4, and then injected into the brake sub-cylinder 3, so that the piston in the brake sub-cylinder 3 moves forward and backward in the brake sub-cylinder 3 as the swing arm of the motor actuator 7 swings, driving the original vehicle brake pedal 1 to be stepped on or The vehicle returns to its original position to realize the braking function; when the vehicle obstacle detection device 10 detects an approaching obstacle, the vehicle controller 9 sends a signal to control the motor actuator 7 to operate, push the brake master cylinder 6 to operate, and push the brake cylinder 3 to operate through the brake oil to realize vehicle braking; when the pedal is stepped on, the position sensor 2 detects the signal and transmits it to the vehicle controller 9, and the vehicle controller 9 sends a signal to control the motor actuator 7 to operate, indirectly pushing the brake cylinder 3 to operate to help step on the original vehicle brake pedal 1. When the position sensor 2 senses that the original vehicle brake pedal 1 has reached the bottom, the vehicle controller 9 sends a signal to control the motor actuator 7 to stop operating.

[0029] It should be noted that in this embodiment, the master cylinder 6 is equipped with a brake oil reservoir. Once the brake oil reservoir is filled with brake oil, the motor actuator 7 is controlled to operate, causing the brake oil to be injected from the master cylinder 6 into the oil pipe 4, and then into the brake cylinder 3. The piston in the brake cylinder 3 moves back and forth within the brake cylinder 3 as the motor actuator 7 swings. One end of the piston in the brake cylinder 3 is connected to the original vehicle brake pedal 1 in the main cab. When the piston in the brake cylinder 3 moves back and forth, it drives the original vehicle brake pedal 1 to be depressed or returned to its original position, thereby achieving the braking function. When the vehicle is driving, if the obstacle detection devices installed at the front, rear, and body of the vehicle detect an approaching obstacle, the vehicle control computer will send a signal to control the motor actuator 7 to operate, actuating the master cylinder 6. The master cylinder 6 then pushes the brake oil in the oil pipe 4, thereby actuating the brake cylinder 3, ultimately braking the vehicle. When the foot is stepping on the pedal, the position sensor 2 will detect that the driver is stepping on the pedal, and the position sensor 2 will transmit a signal to the car controller 9. The car control computer will send a signal to control the motor actuator 7 to move, indirectly pushing the brake cylinder 3 to move and help step on the original car brake pedal 1. When the position sensor 2 senses that the original car brake pedal 1 has reached the bottom, the position sensor 2 will transmit a signal to the car controller 9. The car control computer will send a signal to control the motor actuator 7 to stop moving, reducing the force exerted by the human foot and increasing driving comfort.

[0030] As an implementation mode, the motor actuator 7 in this embodiment serves as an execution action unit for active braking in the hydraulic drive scheme of the automobile brake mechanism. The motor actuator 7 is provided with a swing arm and a push rod that can push the piston of the oil circuit brake master cylinder 6. The push rod of the motor actuator 7 is connected to the piston of the oil circuit brake master cylinder 6.

[0031] As an implementation manner, the motor actuator 7 in this embodiment is provided with a mounting bracket, and the motor actuator 7 with the mounting bracket and the oil circuit brake master cylinder 6 are fixed in the trunk of the car.

[0032] As an implementation mode, the signal transceiver of the motor actuator 7 in this embodiment is connected to the vehicle controller 9 via a control signal line 8 to receive the action execution signal of the vehicle controller 9 .

[0033] As an implementation method, in this embodiment, the master brake cylinder 6 is connected to the brake slave cylinder 3 via an oil pipe 4. The oil pipe 4 has threaded connectors at both ends, which are connected to the master brake cylinder 6 and the brake slave cylinder 3, respectively. In this embodiment, the master brake cylinder 6 is equipped with a brake oil reservoir, which is filled with brake oil. By manipulating a motor actuator 7, a swing arm drives the master brake cylinder 6, injecting the oil from the reservoir into the oil pipe 4, and then into the brake slave cylinder 3, driving the piston in the brake slave cylinder 3 to extend and retract. This forward and backward movement of the piston in the brake slave cylinder 3 causes the original vehicle brake pedal 1 in the main cab to be depressed or returned to its original position, thereby achieving the braking function.

[0034] As an implementation method, the brake cylinder 3 described in this embodiment has an installation fixing hole, and the brake cylinder 3 is fixed on the original vehicle brake pedal 1 fixing bracket in the main driving cab. One end of the brake cylinder 3 is connected to the oil pipe 4, and the other end is provided with a piston. One end of the piston of the brake cylinder 3 is connected to the original vehicle brake pedal 1.

[0035] As an implementation method, in this embodiment, an oil pressure sensor 5 is installed on the oil pipe 4. The oil pressure sensor 5 has a signal transmission device and is connected to the automobile controller 9 through a control signal line 8. The oil pressure sensor 5 can output the pressure of the oil pipe 4. The presence or absence of pressure in the oil pressure sensor 5 can reflect whether there is brake oil in the oil pipe 4, which is convenient for fault detection of the brake oil circuit.

[0036] As an implementation method, in this embodiment, the original vehicle's brake pedal 1 is equipped with a position sensor 2. This position sensor 2 includes a signal transmission device connected to a vehicle controller 9 via a control signal line 8. This position sensor 2 can output a real-time brake pedal position signal to the vehicle controller 9. When the vehicle's detection device detects an obstacle, the vehicle controller 9 sends a signal to the motor actuator 7. When the motor actuator 7 is activated, it pushes the oil pipe 4 and drives the brake actuator to depress the original vehicle's brake pedal 1, achieving service braking.

[0037] The hydraulic drive device for the automobile brake mechanism provided in this embodiment has wide adaptability and can be installed on all types of vehicles without any installation limitations. The utility model uses an oil circuit to drive the braking system, which has stable performance and a low failure rate, thereby ensuring higher safety and reliability. During driving, the utility model can respond to the received signal and actively drive the braking mechanism to perform the braking operation. The utility model uses a hydraulic drive structure for braking, and the braking process is gentle and sensitive, effectively avoiding the driver's sense of frustration. In addition, the utility model can also actively assist in braking, reduce the driver's foot force, and thereby improve driving comfort.

[0038] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. A person skilled in the art can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A hydraulic drive device for an automobile brake mechanism, characterized in that: It at least includes the original vehicle brake pedal, position sensor, brake cylinder, oil pipe, oil pressure sensor, brake master cylinder, motor actuator, control signal line, vehicle controller, and vehicle obstacle detection device; in The motor actuator is connected to the brake master cylinder, which is connected to the brake sub-cylinder via an oil pipe, and the brake sub-cylinder is connected to the original vehicle brake or clutch pedal in the main cab; the oil pipe is equipped with an oil pressure sensor, and the original vehicle brake pedal is equipped with a position sensor; the brake master cylinder is equipped with a brake oil tank, which controls the operation of the motor actuator to inject brake oil from the brake master cylinder into the oil pipe and then into the brake sub-cylinder, causing the piston in the brake sub-cylinder to extend and retract in the brake sub-cylinder as the swing arm of the motor actuator swings, driving the original vehicle brake pedal to be depressed or returned to its original position to achieve the braking function; When the vehicle obstacle detection device detects an approaching obstacle, the vehicle controller sends a signal to control the motor actuator to drive the brake master cylinder, which in turn drives the brake slave cylinder through the brake oil to achieve vehicle braking. When the pedal is stepped on, the position sensor detects the signal and transmits it to the vehicle controller. The vehicle controller sends a signal to control the motor actuator to indirectly drive the brake slave cylinder to help step on the original vehicle's brake pedal. When the position sensor senses that the original vehicle's brake pedal has reached the bottom, the vehicle controller sends a signal to control the motor actuator to stop moving.

2. The hydraulic drive device for automobile brake mechanism according to claim 1, characterized in that: The motor actuator is provided with a swing arm and a push rod which can push the piston of the oil circuit brake master cylinder to move; the push rod of the motor actuator is connected with the piston of the oil circuit brake master cylinder.

3. The hydraulic drive device for automobile brake mechanism according to claim 1, characterized in that: The motor actuator is provided with a mounting frame, and the motor actuator with the mounting frame and the oil circuit brake master cylinder are fixed in the trunk of the car.

4. The hydraulic drive device for automobile brake mechanism according to claim 1, characterized in that: The signal transceiver of the motor actuator is connected to the vehicle controller via a control signal line to receive the action execution signal from the vehicle controller.

5. The hydraulic drive device for automobile brake mechanism according to claim 1, characterized in that: The two ends of the oil pipe are provided with threaded joints, and the threaded joints at the two ends of the oil pipe are respectively connected to the brake master cylinder and the brake sub-cylinder.

6. The automobile brake mechanism hydraulic drive device according to claim 1, characterized in that: The brake cylinder is provided with an installation fixing hole, which is fixed on the original vehicle brake pedal fixing frame in the main driving room. One end of the brake cylinder is connected to the oil pipe, and the other end is provided with a piston. One end of the brake cylinder piston is connected to the original vehicle brake pedal.

7. The hydraulic drive device for automobile brake mechanism according to claim 1, characterized in that: The oil pressure sensor is provided with a signal transmission device and is connected to the vehicle controller via a control signal line to output the pressure of the oil pipe, thereby facilitating fault detection of the brake oil circuit.

8. The hydraulic drive device for automobile brake mechanism according to claim 1, characterized in that: The position sensor is provided with a signal transmission device and is connected to the vehicle controller via a control signal line to output the position signal of the original vehicle brake pedal in real time.

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