Vehicle-based pedal deceleration control system and vehicle

Abstract

The application provides a vehicle-based pedal deceleration control system and a vehicle. One end of a pedal arm is rotationally connected to a pedal base through a rotating shaft, the other end of the pedal arm is provided with a brake pedal, an angle sensor is arranged on the rotating shaft, an adjustable damping module is arranged in the movement direction of the pedal arm, and a vehicle controller is configured to configure the damping of the adjustable damping module based on damping configuration information. The adjustable damping module is configured to hinder the movement of the pedal arm based on the configured damping when the pedal base is stepped on. The angle sensor is configured to transmit the collected angle signal to the vehicle controller. The vehicle controller is configured to convert the angle signal into a pedal stroke and determine the deceleration of the vehicle according to the pedal stroke. The damping of the adjustable damping module can be configured according to the actual situation of different drivers, thereby realizing different pedal strokes with the same brake pedal force, improving flexibility, and meeting the sensitivity and preference requirements of different drivers for the brake pedal force.

Description

Technical Field

[0001] This application relates to the field of vehicle braking control technology, and in particular to a vehicle-based pedal deceleration system and vehicle. Background Technology

[0002] With the rapid development of the automotive industry, decoupled electric power steering systems are widely used in automotive braking systems. Decoupled electric power steering systems allow for software-level configuration of the relationship between brake pedal travel and vehicle deceleration, enabling diverse adjustments to the brake pedal feel.

[0003] Currently, for the same vehicle, when the braking force on the brake pedal is the same, the corresponding brake pedal travel is also fixed, and thus the corresponding vehicle deceleration is also fixed.

[0004] However, the same vehicle may be driven by different drivers, and these drivers have different driving habits. Specifically, different drivers have vastly different sensitivities and preferences for brake pedal force (for example, driver A wants to use brake pedal force A to achieve deceleration A, while driver B wants to use brake pedal force B to achieve deceleration A). The above method lacks flexibility and cannot meet the needs of different drivers with varying sensitivities and preferences for brake pedal force, thus affecting driving comfort. Summary of the Invention

[0005] This application provides a vehicle-based pedal deceleration system and vehicle to solve the problem that existing vehicles cannot meet the needs of different drivers for brake pedal force sensitivity and preference, thus affecting the driver's driving comfort.

[0006] In a first aspect, this application provides a vehicle pedal-based deceleration control system, including a pedal arm, a pedal base, a steering angle sensor, an adjustable damping module, and an on-board controller. One end of the pedal arm is rotatably connected to the pedal base via a pivot shaft, and the other end of the pedal arm is equipped with a brake pedal. The steering angle sensor is mounted on the pivot shaft. The adjustable damping module is mounted on the pedal base and is positioned in the direction of movement of the pedal arm. The on-board controller is electrically connected to the adjustable damping module. The vehicle controller is used to configure the damping of the adjustable damping module based on the damping configuration information; The adjustable damping module is used to resist pedal arm movement based on the configured damping when the pedal base is stepped on; Angle sensors are used to transmit the collected angle signals to the vehicle controller; The onboard controller is used to convert angle signals into pedal travel and determine the vehicle's deceleration based on the pedal travel.

[0007] In some implementations, the adjustable damping module is a magnetorheological fluid damping module.

[0008] In some implementations, the adjustable damping module is an electrorheological fluid damping module.

[0009] In some embodiments, the system provided in this application further includes a human-machine interface module, which is electrically connected to the vehicle controller. The human-machine interface module is used to receive damping configuration information input by the user and transmit the damping configuration information to the vehicle controller.

[0010] In some implementations, the human-computer interaction module is an in-vehicle central control screen or an in-vehicle voice interaction module.

[0011] In some embodiments, the system provided in this application further includes a human feature recognition module, which is electrically connected to the vehicle controller. The human body feature recognition module is used to collect the driver's human body features; The vehicle controller is used to determine damping configuration information based on the driver's body characteristics.

[0012] In some implementations, the human feature recognition module is a vehicle camera, a voiceprint recognition module, or a fingerprint recognition module.

[0013] Secondly, this application also provides a vehicle equipped with the vehicle-based pedal deceleration control system provided in the first aspect of this application.

[0014] In some implementations, the vehicle also includes an anti-lock braking system electrically connected to an onboard controller, which, upon determining that the anti-lock braking system is activated, controls an adjustable damping module to transmit pulsed resistance to the brake pedal.

[0015] In some implementations, the vehicle is a new energy vehicle or a fuel-powered vehicle.

[0016] This application provides a vehicle-based pedal deceleration system and vehicle. One end of the pedal arm is rotatably connected to the pedal base via a rotating shaft, and the other end of the pedal arm is provided with a brake pedal. An angle sensor is disposed on the rotating shaft, and an adjustable damping module is mounted on the pedal base. The adjustable damping module is disposed in the direction of movement of the pedal arm, and the vehicle controller is used to configure the damping of the adjustable damping module based on damping configuration information. The adjustable damping module is used to resist the movement of the pedal arm based on the configured damping when the pedal base is stepped on. An angle sensor transmits the collected angle signal to the onboard controller; the onboard controller converts the angle signal into pedal travel and determines the vehicle's deceleration based on the pedal travel. This allows the adjustable damping module to be configured to suit different drivers' needs, achieving different pedal travels with the same braking force, thus corresponding to different pedal decelerations. This high flexibility meets the varying sensitivity and preferences of different drivers regarding braking pedal force, improving driving comfort. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the deceleration system of the vehicle pedal provided in an embodiment of this application; Figure 2 A circuit module connection diagram of the vehicle pedal deceleration system provided in an embodiment of this application; Figure 3 This is a schematic diagram of the structure of the magnetorheological fluid damping module provided in the embodiments of this application. Detailed Implementation

[0019] Embodiments of the present disclosure will now be described with reference to the accompanying drawings. However, it should be understood that these descriptions are exemplary only and are not intended to limit the scope of the disclosure. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concepts of the present disclosure.

[0020] The accompanying drawings illustrate various structural schematics according to embodiments of the present disclosure. These drawings are not to scale, and some details have been enlarged for clarity, and some details may have been omitted. The shapes of the various regions and layers shown in the drawings, as well as their relative sizes and positional relationships, are merely exemplary and may deviate from reality due to manufacturing tolerances or technical limitations. Furthermore, those skilled in the art can design regions / layers with different shapes, sizes, and relative positions as needed.

[0021] In the context of this disclosure, when a layer / element is referred to as being "above" another layer / element, the layer / element may be directly above the other layer / element, or there may be an intermediate layer / element between them. Additionally, if a layer / element is "above" another layer / element in one orientation, then when the orientation is reversed, the layer / element may be "below" the other layer / element.

[0022] The technical solutions of this application and how they solve the aforementioned technical problems will be described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0023] like Figure 1 As shown, this application embodiment provides a vehicle pedal-based deceleration control system, including a pedal arm 102, a pedal base 103, a steering angle sensor 104, an adjustable damping module 105, and an on-board controller 201. One end of the pedal arm 102 is rotatably connected to the pedal base 103 via a rotating shaft, and the other end of the pedal arm 102 is provided with a brake pedal 101. The steering angle sensor 104 is disposed on the rotating shaft, and the adjustable damping module 105 is mounted on the pedal base 103, and the adjustable damping module 105 is disposed in the direction of movement of the pedal arm 102. Figure 2 As shown, the vehicle controller 201 is electrically connected to the adjustable damping module 105. Among them, The vehicle controller 201 is used to configure the damping of the adjustable damping module 105 based on the damping configuration information.

[0024] Specifically, in some implementations, it is still as follows Figure 2 As shown, the system provided in this embodiment further includes a human-machine interface module 202, which is electrically connected to the vehicle controller 201. The human-machine interface module 202 receives damping configuration information input by the user and transmits the damping configuration information to the vehicle controller 201. Then, the vehicle controller 201 configures the damping of the adjustable damping module 105 based on the received damping configuration information. For example, the damping configuration information set by a young person carries a smaller damping, while the damping configuration information set by a middle-aged or elderly person carries a larger damping; or, for example, the damping configuration information set by a man carries a smaller damping, while the damping configuration information set by a woman carries a larger damping. In this way, the damping size carried in the damping configuration information can be configured according to the driver's individual needs.

[0025] It should be noted that the aforementioned human-computer interaction module 202 may be, but is not limited to, an in-vehicle central control screen or an in-vehicle voice interaction module.

[0026] In some implementations, it is still as follows Figure 2As shown in the figure, the system provided in this application embodiment also includes a human feature recognition module 203, which is electrically connected to the vehicle controller 201. The human feature recognition module 203 is used to collect the driver's human features; the vehicle controller 201 is used to determine damping configuration information based on the driver's human features. For example, if the human features indicate the driver is young, the determined damping configuration information carries a lower damping; if the human features indicate the driver is middle-aged or elderly, the determined damping configuration information carries a higher damping; as another example, if the human features indicate the driver is male, the determined damping configuration information carries a lower damping; if the human features indicate the driver is female, the determined damping configuration information carries a higher damping. In this way, the damping magnitude carried in the damping configuration information can be configured according to the driver's human features.

[0027] The aforementioned human feature recognition module 203 can be a vehicle-mounted camera, a voiceprint recognition module, or a fingerprint recognition module. For example, when the human feature recognition module 203 is a vehicle-mounted camera, it can recognize the driver's facial features and determine the driver's age and gender based on the facial features. When the human feature recognition module 203 is a voiceprint recognition module, it can recognize the driver's voiceprint features and determine the driver's identity information based on the voiceprint features, and determine the driver's age and gender based on the driver's identity information. When the human feature recognition module 203 is a fingerprint recognition module, it can recognize the driver's fingerprint features and determine the driver's identity information based on the fingerprint features, and determine the driver's age and gender based on the driver's identity information.

[0028] The adjustable damping module 105 is used to impede the movement of the pedal arm 102 based on the configured damping when the pedal base 103 is stepped on.

[0029] For example, the adjustable damping module 105 can be a magnetorheological fluid damping module, such as... Figure 3As shown, the magnetorheological fluid damping module includes a piston rod 301, a piston 302, a cylinder 303, and a magnetorheological fluid. The piston rod 301 is located in the direction of movement of the pedal arm 102 and is connected to the piston 302. The piston 302 is connected to the cylinder 303. An electromagnetic coil 304 is installed inside the piston 302 and is electrically connected to the vehicle controller 201. A damping channel 305 is formed between the piston 302 and the cylinder 303, and the damping channel 305 is filled with magnetorheological fluid. The vehicle controller 201 can control the current flowing into the electromagnetic coil 304 according to the damping configuration information. The current generates a magnetic field, which is concentrated through the damping channel 305 between the piston 302 and the cylinder 303 through a carefully designed magnetic circuit. Under the action of the magnetic field, the magnetic particles in the magnetorheological fluid flowing through the damping channel 305 instantly arrange themselves into a chain-like structure, "locking" or greatly hindering the flow of the magnetorheological fluid. This causes a sharp increase in the shear stress required for the magnetorheological fluid to flow through the channel. In other words, the movement of piston 302 becomes extremely difficult. Understandably, the magnitude of the damping is proportional to the magnitude of the input current; the greater the current in the electromagnetic coil 304, the stronger the magnetic field, the higher the "apparent viscosity" of the magnetorheological fluid, and the greater the resulting damping. Understandably, when the driver applies the same force to the brake pedal 101, the pedal arm 102 pushes the piston rod 301, causing the piston 302 to move within the cylinder 303. The greater the current in the electromagnetic coil 304, the greater the damping and the shorter the pedal travel; conversely, the greater the current in the electromagnetic coil 304, the smaller the damping and the longer the pedal travel.

[0030] Alternatively, the adjustable damping module 105 can also be a electrorheological fluid damping module. The working principle of the electrorheological fluid damping module is similar to that of the magnetorheological fluid damping module described above, and will not be elaborated upon here.

[0031] Furthermore, the angle sensor 104 is used to transmit the acquired angle signal to the vehicle controller 201. The vehicle controller 201 is used to convert the angle signal into pedal travel and determine the vehicle's deceleration based on the pedal travel.

[0032] In addition, this application also provides a vehicle equipped with the vehicle-based pedal deceleration control system provided in the above embodiments of this application.

[0033] In some embodiments, the vehicle also includes an anti-lock braking system electrically connected to an on-board controller 201. The on-board controller 201 is also used to control an adjustable damping module 105 to transmit pulsed resistance to the brake pedal 101 when it is determined that the anti-lock braking system has been activated, so as to prompt the driver that the anti-lock braking system has been activated.

[0034] Understandably, the aforementioned vehicles can be either new energy vehicles or gasoline-powered vehicles.

[0035] In summary, the present application provides a vehicle-based pedal deceleration system and vehicle. One end of the pedal arm 102 is rotatably connected to the pedal base 103 via a rotating shaft, and the other end of the pedal arm 102 is equipped with a brake pedal 101. An angle sensor 104 is mounted on the rotating shaft, and an adjustable damping module 105 is installed on the pedal base 103. The adjustable damping module 105 is positioned in the direction of movement of the pedal arm 102. Furthermore, the vehicle controller 201 configures the damping of the adjustable damping module 105 based on damping configuration information. The adjustable damping module 105 is used to impede the movement of the pedal arm 102 based on the configured damping when the pedal base 103 is stepped on. Angle sensor 104 transmits the collected angle signal to vehicle controller 201; vehicle controller 201 converts the angle signal into pedal travel and determines the vehicle deceleration based on the pedal travel. This allows the damping of adjustable damping module 105 to be configured according to different drivers' actual conditions, thereby achieving different pedal travels with the same brake pedal force 101, corresponding to different pedal decelerations. This high flexibility meets the needs of different drivers regarding their sensitivity and preferences for brake pedal force 101, improving driving comfort.

[0036] The above description does not provide detailed technical specifications regarding the structure of each layer. However, those skilled in the art should understand that layers and regions of desired shapes can be formed using various technical means. Furthermore, to form the same structure, those skilled in the art can also design methods that are not entirely identical to those described above. Additionally, although various embodiments have been described above, this does not mean that the measures in the various embodiments cannot be advantageously combined.

[0037] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0038] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A vehicle pedal-based deceleration control system, characterized in that, The system includes a pedal arm, a pedal base, a slewing sensor, an adjustable damping module, and an on-board controller. One end of the pedal arm is rotatably connected to the pedal base via a pivot shaft, and the other end of the pedal arm is equipped with a brake pedal. The slewing sensor is mounted on the pivot shaft. The adjustable damping module is mounted on the pedal base and is positioned along the movement direction of the pedal arm. The on-board controller is electrically connected to the adjustable damping module. The vehicle controller is used to configure the damping of the adjustable damping module based on the damping configuration information; The adjustable damping module is used to impede the movement of the pedal arm based on the configured damping when the pedal base is stepped on. The angle sensor is used to transmit the collected angle signal to the vehicle controller; The vehicle controller is used to convert the angle signal into pedal travel and determine the deceleration of the vehicle based on the pedal travel.

2. The vehicle-based pedal-based deceleration control system according to claim 1, characterized in that, The adjustable damping module is a magnetorheological fluid damping module.

3. The vehicle-based pedal-based deceleration control system according to claim 1, characterized in that, The adjustable damping module is an electrorheological fluid damping module.

4. The vehicle-based pedal-based deceleration control system according to claim 1, characterized in that, The system also includes a human-machine interaction module, which is electrically connected to the vehicle controller. The human-machine interaction module is used to receive damping configuration information input by the user and transmit the damping configuration information to the vehicle controller.

5. The vehicle-based pedal-based deceleration control system according to claim 4, characterized in that, The human-computer interaction module is either an in-vehicle central control screen or an in-vehicle voice interaction module.

6. The vehicle pedal-based deceleration control system according to claim 1, characterized in that, The system also includes a human feature recognition module, which is electrically connected to the vehicle controller. The human body feature recognition module is used to collect the driver's human body features; The vehicle controller is used to determine the damping configuration information based on the driver's physical characteristics.

7. The vehicle-based pedal-based deceleration control system according to claim 6, characterized in that, The human body feature recognition module can be a vehicle-mounted camera, a voiceprint recognition module, or a fingerprint recognition module.

8. A vehicle, characterized in that, The vehicle is equipped with a pedal-based deceleration control system as described in any one of claims 1-7.

9. The vehicle according to claim 8, characterized in that, The vehicle also includes an anti-lock braking system, which is electrically connected to the on-board controller. The on-board controller is also used to control the adjustable damping module to transmit pulse resistance to the brake pedal when it is determined that the anti-lock braking system is activated.

10. The vehicle according to claim 8, characterized in that, The vehicle in question is either a new energy vehicle or a gasoline-powered vehicle.

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