Dual mode brake control for automatic transmission vehicles

Abstract

The application belongs to the technical field of vehicle braking, and discloses a dual-mode brake control automatic gear vehicle, which comprises left and right brake pedals, which are mechanical brake pedals and electronic brake pedals respectively, the mechanical brake pedals are connected with connecting rod mechanisms, the connecting rod mechanisms are connected with hydraulic brake systems, the hydraulic brake systems comprise oil circuits, the oil circuits are connected with brake calipers, the brake calipers are matched with wheels, the electronic brake pedals are connected with position sensors, the position sensors are connected with electronic control units, the electronic control units are connected with electric brake systems, the electric brake systems are connected with brake devices, the brake devices are matched with the wheels, and the electronic control units and the hydraulic brake systems are jointly connected with safety interlocking devices. The mechanical brake of the right foot or the electronic brake of the left foot can be selected and used according to actual conditions, and fatigue caused by single foot brake control is reduced.

Description

Technical Field

[0001] This invention relates to the field of vehicle braking technology, and more particularly to an automatic transmission vehicle with dual-mode braking control. Background Technology

[0002] Currently, because automatic transmissions lack a clutch, the left foot is idle, allowing it to be used for braking and preventing the right foot from mistakenly pressing the accelerator instead of the brake. Switching between the brake and accelerator takes time and is prone to accidental pressing, posing a safety hazard. Automatic transmission vehicles typically rely solely on the right foot to control a single mechanical braking system. This traditional braking control method has limitations. For example, during long drives, continuous right-foot braking can lead to fatigue, and the lack of a backup braking mechanism when the electronic or mechanical braking system malfunctions can threaten driving safety. Summary of the Invention

[0003] The present invention aims to provide an automatic transmission vehicle with dual-mode braking control to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: An automatic transmission vehicle with dual-mode brake control includes a left-foot brake pedal located at the left foot position, and both the left-foot brake pedal and the right-foot brake pedal are connected to the braking system.

[0005] Preferably, an automatic transmission vehicle with dual-mode braking control is characterized in that: the left foot brake pedal and the right foot brake pedal are connected to two different braking systems.

[0006] Preferably, an automatic transmission vehicle with dual-mode braking control is characterized in that: the left foot brake pedal and the right foot brake pedal are respectively an electronic brake pedal and a mechanical brake pedal, which are respectively connected to an electronic braking system and a mechanical braking system; the mechanical brake pedal is connected to a linkage mechanism, the linkage mechanism is connected to a hydraulic braking system, the hydraulic braking system is connected to an oil circuit, the oil circuit is connected to a brake caliper, the brake caliper cooperates with the wheel; the electronic brake pedal is connected to a position sensor, the position sensor is connected to an electronic control unit, the electronic control unit is connected to an electric braking system, the electric braking system is connected to a braking device, the braking device cooperates with the wheel; the electronic control unit and the oil circuit are jointly connected to a safety interlock device.

[0007] Preferably, the safety interlock device includes a solenoid valve, the oil circuit includes branch circuits, the branch circuits are provided in two sets, the branch circuits are connected to the hydraulic braking system, the two sets of branch circuits are arranged in parallel, the two sets of branch circuits are connected to a main circuit, the solenoid valve is connected to the branch circuits, the solenoid valve is connected to an electronic control unit, any branch circuit is connected to a buffer tank, the main circuit is connected to a flow sensor, the flow sensor is connected to the electronic control unit, and the main circuit is connected to the brake caliper.

[0008] Preferably, the hydraulic braking system is connected to a fault detection module, which is connected to a display screen and a warning light, and the fault detection module is connected to an electronic control unit.

[0009] Preferably, the electric braking system is connected to an energy recovery circuit, and the energy recovery circuit is connected to a battery.

[0010] Preferably, the linkage mechanism is connected to a vacuum booster pump.

[0011] The beneficial effects of this technical solution compared to existing technologies are as follows: (1) This technical solution enables dual-mode braking by incorporating a mechanical brake pedal, an electronic brake pedal, a hydraulic braking system, an electronic control unit, and an electric braking system. During driving, the driver can choose to use either the mechanical brake with their right foot or the electronic brake with their left foot, reducing fatigue from single-foot braking. The mechanical and electronic brakes are independent yet serve as backups for each other. If the mechanical brake system fails due to sudden malfunctions such as wear of mechanical components or brake fluid leakage, the electronic brake system can immediately intervene to ensure vehicle braking and prevent brake failure. Conversely, if the electronic brake system encounters electronic component failures or short circuits, the mechanical brake can function normally and maintain braking capacity. In complex road conditions and emergency situations, having an additional reliable braking mechanism greatly improves the reliability of the vehicle's braking system, increases driver confidence, and reduces the risk of accidents.

[0012] (2) By setting up a safety interlock device, it is possible to prevent conflicts that may occur when the left and right feet operate the brakes at the same time, ensuring that only one braking system plays a major role at any time, making the braking operation more stable and reliable. It reduces unnecessary system response and energy loss, allowing the braking system to transmit braking force to the wheels more quickly and efficiently, achieving a shorter braking distance, and better ensuring driving safety in emergency situations.

[0013] (3) By setting up a fault detection module, faults in the mechanical braking system can be accurately detected, enabling the driver to be aware of the vehicle's condition in a timely manner and prepare accordingly, thus improving the reliability of the entire braking system. It also helps maintenance personnel to quickly locate and diagnose problems, shorten maintenance time, improve vehicle maintenance efficiency, and enable the vehicle to return to normal operation more quickly.

[0014] (4) By setting up an energy recovery circuit, the electrical energy generated by the reverse rotation of the electric braking system motor can be stored in the vehicle battery, avoiding the waste of kinetic energy directly converted into heat energy during braking. This allows the vehicle to recover a portion of the energy during braking and reuse it, thereby improving the overall energy efficiency of the vehicle.

[0015] (5) By setting up a vacuum booster pump, the pressure required for braking can be quickly established, so that the hydraulic braking system can respond quickly after the driver presses the mechanical brake pedal, thus shortening the braking reaction time.

[0016] (6) The dual braking system can ensure sufficient braking and avoid accidents when a single braking system fails.

[0017] (7) By using the left foot to brake, errors caused by switching from the accelerator to the brake, or the accelerator being mistaken for the brake, can be avoided. Switching from the accelerator to the brake often takes several seconds, and this patent also saves the switching time, effectively solving the problem of sudden accidents. Attached Figure Description

[0018] Figure 1 This is a structural block diagram of the present invention; Figure 2 This is a flowchart of the process of the present invention; Attached reference numerals: 1. Mechanical brake pedal; 2. Buffer tank; 3. Solenoid valve; 4. Linkage mechanism; 5. Vacuum booster pump; 6. Hydraulic braking system; 7. Fault detection module; 8. Warning light; 9. Display screen; 10. Electronic control unit; 11. Position sensor; 12. Electronic brake pedal; 13. Electric braking system; 14. Braking device; 15. Battery; 16. Safety interlock device; 17. Brake caliper; 18. Main circuit; 19. Flow sensor; 20. Branch circuit; 21. Energy recovery circuit. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments: like Figure 1-2The diagram illustrates an automatic transmission vehicle with dual-mode braking control, comprising a mechanical brake pedal and an electronic brake pedal. These pedals are located on the left and right sides of the driver's seat, respectively, requiring the driver to control them with their left and right feet. Since automatic transmission vehicles lack a clutch, the left foot is idle, allowing for braking in emergencies and preventing accidental misapplication of the accelerator by the right foot. The mechanical brake pedal is connected to a linkage mechanism, which in turn connects to a vacuum booster pump. The linkage mechanism passes through the vacuum booster pump and connects to the master cylinder piston within the hydraulic braking system. The hydraulic braking system is connected to an oil circuit, which includes two sets of branch circuits connected to the hydraulic braking system. These two sets of branch circuits are arranged in parallel and share a main circuit, which connects to the brake calipers, which engage with the wheels. When the driver depresses the mechanical brake pedal, the force is transmitted through the linkage mechanism. The linkage mechanism first passes through the vacuum booster pump, which utilizes vacuum suction to increase the force of the linkage mechanism, allowing the driver to achieve greater braking force with less effort. The assisted linkage mechanism drives the master cylinder piston in the hydraulic braking system, thereby pressurizing the brake fluid. The pressure is transmitted through the oil circuit, where two parallel branches of the oil circuit transmit the brake fluid to the main circuit, which then delivers the brake fluid to the brake calipers. The brake calipers clamp the wheels, thus braking the vehicle.

[0020] like Figure 1 As shown, the electronic brake pedal is connected to a position sensor, which is connected to an electronic control unit (ECU) via wires. The ECU is connected to an electric braking system via wires, and the electric braking system is connected to a braking device via wires. The braking device works in conjunction with the wheels. The electric braking system is connected to an energy recovery circuit, which is connected to a battery. When the driver presses the electronic brake pedal, the change in pedal position is detected by the position sensor. The position sensor converts this signal into an electrical signal and transmits it to the ECU via wires. After processing and analyzing the signal, the ECU issues a command to control the electric braking system. The electric braking system drives the braking device to brake the wheels via wires. Simultaneously, during electronic braking, the electric braking system's motor reverses to generate electrical energy. This electrical energy is stored in the battery through the energy recovery circuit, achieving energy recovery and utilization.

[0021] like Figure 1As shown, the electronic control unit (ECU) and the hydraulic circuit are connected to a safety interlock device. The safety interlock device includes solenoid valves; both branches are equipped with solenoid valves, which are connected to the ECU via wires. Each branch is connected to a buffer tank, and the main circuit is connected to a flow sensor, which is also connected to the ECU via wires. When the mechanical brake pedal is depressed, the flow sensor detects the brake fluid flow in the main circuit. When the set flow rate is reached, the flow sensor converts this signal into an electrical signal and transmits it to the ECU via wires. The ECU processes and analyzes the signal and then issues a command to control the electric braking system, causing it to shut down. When the electronic brake pedal is depressed, the ECU controls the solenoid valve on the branch connected to the buffer tank to open, and the solenoid valve on the other branch to close, allowing some brake fluid to enter the buffer tank and reducing the braking force of the brake calipers. The hydraulic braking system is connected to a fault detection module, which is connected to the display screen and warning lights via wires. The fault detection module is also connected to the ECU via wires. When a malfunction is detected in the mechanical braking system, the fault detection module transmits the fault signal to the display screen and warning lights via wires to alert the driver of the vehicle problem. At the same time, it transmits the fault signal to the electronic control unit, which automatically switches to electronic braking as the primary braking method to ensure driving safety.

[0022] The specific implementation process is as follows: When in use, the driver can choose to use either the mechanical brake pedal or the electronic brake pedal according to their personal habits. If the mechanical braking system malfunctions during emergency braking, the fault detection module will quickly detect it and automatically switch to the electronic brake to ensure that the vehicle can brake effectively.

[0023] The above descriptions are merely embodiments of the present invention, and common knowledge such as specific technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solutions of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. An automatic transmission vehicle with dual-mode braking control, characterized in that: It includes a left-foot brake pedal located at the left foot position, and both the left-foot brake pedal and the right-foot brake pedal are connected to the braking system.

2. The automatic transmission vehicle with dual-mode braking control as described in claim 1, characterized in that: The left and right foot brake pedals connect to two different braking systems.

3. An automatic transmission vehicle with dual-mode braking control as described in claim 2, characterized in that: The automatic transmission vehicle with dual-mode braking control as described in claim 1 is characterized in that: the left foot brake pedal and the right foot brake pedal are respectively an electronic brake pedal and a mechanical brake pedal, which are respectively connected to the electronic braking system and the mechanical braking system; the mechanical brake pedal (1) is connected to a linkage mechanism (4); the linkage mechanism (4) is connected to a hydraulic braking system (6); the hydraulic braking system (6) is connected to an oil circuit; the oil circuit is connected to a brake caliper (17); the brake caliper (17) cooperates with the wheel; the electronic brake pedal (12) is connected to a position sensor (11); the position sensor (11) is connected to an electronic control unit (10); the electronic control unit (10) is connected to an electric braking system (13); the electric braking system (13) is connected to a braking device (14); the braking device (14) cooperates with the wheel; and the electronic control unit (10) and the oil circuit are jointly connected to a safety interlock device (16).

4. An automatic transmission vehicle with dual-mode braking control as described in claim 1, characterized in that: The safety interlock device (16) includes a solenoid valve (3), the oil circuit includes a branch (20), the branch (20) is provided in two sets, the branch (20) is connected to the hydraulic braking system (6), the two sets of the branch (20) are arranged in parallel, the two sets of the branch (20) are connected to the main circuit (18), the solenoid valve (3) is connected to the branch (20), the solenoid valve (3) is connected to the electronic control unit (10), any branch (20) is connected to a buffer tank (2), the main circuit (18) is connected to a flow sensor (19), the flow sensor (19) is connected to the electronic control unit (10), and the main circuit (18) is connected to the brake caliper (17).

5. An automatic transmission vehicle with dual-mode braking control as described in claim 1, characterized in that: The hydraulic braking system (6) is connected to a fault detection module (7), which is connected to a display screen (9) and a warning light (8). The fault detection module (7) is connected to an electronic control unit (10).

6. An automatic transmission vehicle with dual-mode braking control as described in claim 1, characterized in that: The electric braking system (13) is connected to an energy recovery circuit (21), which is connected to a battery (15).

7. An automatic transmission vehicle with dual-mode braking control as described in claim 1, characterized in that: The linkage mechanism (4) is connected to a vacuum booster pump (5).

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