Accelerator pedal adjustment system

Abstract

The application provides an accelerator pedal adjusting system, which comprises a pedal controller, an accelerator pedal adjusting mechanism, a camera, the camera, the accelerator pedal adjusting mechanism and a vehicle controller, and the camera, the accelerator pedal adjusting mechanism and the vehicle controller are electrically connected with the pedal controller respectively; the camera is used for identifying a driver who sits on a main driving position and transmitting biological feature information of the driver to the pedal controller; after the pedal controller receives the biological feature information of the driver, the pedal controller sends a control instruction to the accelerator pedal adjusting mechanism according to driving preferences of the driver, so that the accelerator pedal adjusting mechanism adjusts the height of a pedal surface and the size of a pedal force according to the control instruction; meanwhile, the pedal controller sends an acceleration performance adjusting request signal to the vehicle controller, and the vehicle controller adjusts power output of a vehicle power system after receiving the acceleration performance adjusting request signal, so as to complete adjustment of an acceleration performance curve. The application can better meet the driving comfort requirements of different drivers.

Description

Technical Field

[0001] This invention belongs to the field of automotive pedal technology, specifically relating to an accelerator pedal adjustment system. Background Technology

[0002] The accelerator pedal converts the opening and closing angle changes of the electronic throttle pedal into electrical signals, which are then transmitted to the vehicle control unit (ECU). The ECU controls the throttle opening or the motor based on the input signal from the electronic throttle pedal, thereby controlling the power output. However, the existing accelerator pedals do not have adjustable pedal height, pedal force, or acceleration performance curve. Different drivers may find the pedal too high, resulting in a small ankle angle and foot discomfort; some may find the pedal force too heavy, while others find it too light; some may find the acceleration response too fast, while others find it too slow. This results in the accelerator pedal failing to meet the driving comfort needs of different drivers. Therefore, designing an accelerator pedal adjustment system that can better meet the driving comfort needs of different drivers has become an urgent technical problem to be solved by those skilled in the art. Summary of the Invention

[0003] The purpose of this invention is to provide an accelerator pedal adjustment system to solve the above-mentioned technical problems in the prior art.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] An accelerator pedal adjustment system includes a pedal controller, an accelerator pedal adjustment mechanism, and a camera. The camera and the accelerator pedal adjustment mechanism are electrically connected to the pedal controller, which is also electrically connected to the vehicle's overall controller. The camera identifies the driver sitting in the driver's seat and transmits the driver's biometric information to the pedal controller. After receiving the driver's biometric information, the pedal controller issues control commands to the accelerator pedal adjustment mechanism based on the driver's driving preferences. This causes the accelerator pedal adjustment mechanism to adjust the pedal height and pedal force according to the control commands. Simultaneously, the pedal controller sends an acceleration performance adjustment request signal to the vehicle controller. Upon receiving the acceleration performance adjustment request signal, the vehicle controller adjusts the power output of the vehicle's powertrain to adjust the acceleration performance curve.

[0006] Preferably, the accelerator pedal adjustment mechanism includes a pedal surface height adjustment mechanism for adjusting the pedal surface height of the accelerator pedal, and the pedal surface height adjustment mechanism is electrically connected to the pedal controller.

[0007] Preferably, the pedal height adjustment mechanism includes an adjustment cam and a first rotary drive for driving the adjustment cam to rotate. The adjustment cam is disposed in the pedal housing and located on the left side of the upper end of the pedal arm. The tip of the adjustment cam is positioned downwards, and the outer surface of the tip is used to contact the left side of the upper end of the pedal arm. The first rotary drive is electrically connected to the pedal controller.

[0008] Preferably, the first rotary drive component is a first motor.

[0009] Preferably, the accelerator pedal adjustment mechanism further includes a pedal force adjustment mechanism for adjusting the pedal force of the accelerator pedal, the pedal force adjustment mechanism being electrically connected to the pedal controller.

[0010] Preferably, the pedal force adjustment mechanism includes an adjusting spring and a second rotary drive component. The adjusting spring is obliquely disposed within the pedal housing and located on the upper right side of the pedal arm of the accelerator pedal. The second rotary drive component is disposed on the upper part of the pedal arm, and its output shaft is connected to a shaft rod, which is coaxial with the output shaft. At least two baffles for extending into the adjusting spring are vertically disposed on the shaft rod near the end of the adjusting spring, and the baffles are distributed crosswise along the axial direction of the shaft rod. The second rotary drive component is electrically connected to the pedal controller.

[0011] Preferably, the number of baffles is three.

[0012] Preferably, the second rotary drive component is a second motor.

[0013] Preferably, the camera communicates with the pedal controller, the pedal controller communicates with the accelerator pedal adjustment mechanism, and the pedal controller communicates with the vehicle controller via a CAN network.

[0014] Preferably, the camera communicates with the pedal controller, the pedal controller communicates with the accelerator pedal adjustment mechanism, and the pedal controller communicates with the vehicle controller via hardwire connections.

[0015] The beneficial effects of this invention are as follows:

[0016] The accelerator pedal adjustment system of this invention utilizes a camera to identify different drivers. The pedal controller then adjusts the pedal height and force according to each driver's preferences, specifically regarding pedal position, pedal force, and acceleration response speed. Simultaneously, the pedal controller sends an acceleration performance adjustment request signal to the vehicle controller, causing the vehicle controller to adjust the power output of the vehicle's powertrain to adjust the acceleration performance curve, thereby satisfying the driver's preferred acceleration response speed. Therefore, this invention effectively meets the driving comfort needs of different drivers, ensuring greater comfort for all drivers in the same vehicle and enhancing the vehicle's adaptability to different drivers. 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 embodiments will be briefly described below, and the specific embodiments of the present invention will be further described in detail with reference to the drawings, wherein...

[0018] Figure 1 This is a schematic diagram of the control section of the accelerator pedal adjustment system provided in an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the accelerator pedal adjustment mechanism provided in an embodiment of the present invention during use.

[0020] Marked in the attached diagram:

[0021] 11. Pedal controller; 21. Camera; 31. Accelerator pedal adjustment mechanism.

[0022] 41. Vehicle controller; 51. Adjusting cam; 52. Tip; 61. Second rotary drive; 62. Shaft; 63. Baffle; 64. Adjusting spring;

[0023] 71. Pedal; 72. Pedal surface; 73. Pedal arm; 74. Rotating shaft; 75. Pedal housing. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of the present invention, the present solution will be further described in detail below with reference to specific embodiments.

[0025] like Figure 1 and Figure 2As shown, this embodiment of the invention provides an accelerator pedal adjustment system, which includes a pedal controller 11, an accelerator pedal adjustment mechanism 31, and a camera 21. The camera 21 and the accelerator pedal adjustment mechanism 31 are electrically connected to the pedal controller 11, and the pedal controller is also electrically connected to the vehicle controller 41. The camera 21 is used to identify the driver sitting in the driver's seat and transmit the driver's biometric information to the pedal controller. After receiving the driver's biometric information, the pedal controller issues a control command to the accelerator pedal adjustment mechanism 31 according to the driver's driving preferences, so that the accelerator pedal adjustment mechanism completes the adjustment of the pedal surface height and pedal force according to the control command. At the same time, the pedal controller sends an acceleration performance adjustment request signal to the vehicle controller 41. After receiving the acceleration performance adjustment request signal, the vehicle controller adjusts the power output of the vehicle's power system to complete the adjustment of the acceleration performance curve.

[0026] The accelerator pedal adjustment system provided in this embodiment of the invention uses a camera 21 to identify different drivers. The pedal controller 11 then adjusts the pedal height and pedal force according to each driver's preferences, specifically regarding pedal height, pedal force, and acceleration response speed, via the accelerator pedal adjustment mechanism 31. Simultaneously, the pedal controller sends an acceleration performance adjustment request signal to the vehicle controller 41, causing the vehicle controller 41 to adjust the power output of the vehicle's power system to adjust the acceleration performance curve or power response curve, thereby satisfying the driver's preference for acceleration response speed. Therefore, this invention can effectively meet the driving comfort needs of different drivers, making driving the same vehicle more comfortable for all drivers and improving the vehicle's adaptability to different drivers, thus enhancing driving safety.

[0027] Furthermore, the accelerator pedal adjustment mechanism 31 includes a pedal surface height adjustment mechanism for adjusting the pedal surface height of the accelerator pedal, and the pedal surface height adjustment mechanism is electrically connected to the pedal controller.

[0028] Specifically, the pedal height adjustment mechanism includes an adjusting cam 51 and a first rotary drive for driving the adjusting cam to rotate. The adjusting cam 51 is disposed in the pedal housing and located on the left side of the upper end of the pedal arm. The tip 52 of the adjusting cam faces downward, and the outer surface of the tip is used to contact the left side of the upper end of the pedal arm 73. The first rotary drive is electrically connected to the pedal controller. With this design, after receiving a control command from the pedal controller 11, the first rotary drive drives the adjusting cam to rotate, using the adjusting cam to push the upper end of the pedal arm to move left or right, causing the accelerator pedal located on the lower end of the pedal arm to move in an arc to the right or left, thereby adjusting the height of the accelerator pedal surface 72. When the desired height is reached, the first rotary drive stops working, keeping the pedal surface at that height, thus completing the pedal height adjustment.

[0029] Understandably, the pedal arm 73 is rotatably connected to the lower part of the pedal housing 75 via a rotating shaft 74. Both the upper and lower ends of the pedal arm can rotate around the axis of the pedal arm, but their directions of movement are opposite. A sensor can be installed on the rotating shaft to detect the rotation angle of the rotating shaft and transmit it to the pedal controller. Based on the rotation angle, the pedal controller can determine whether the pedal surface height has reached the required position so as to control the first rotating drive to stop working in time. The axis of the rotating shaft is parallel to the axis of the adjusting cam.

[0030] Preferably, the first rotary drive component is a first motor.

[0031] Specifically, different drivers' driving preferences can be obtained by statistically analyzing data from each driver's experience driving the vehicle, or by statistically analyzing data from each driver's experience driving different vehicles using big data technology, or by conducting surveys and statistical analysis of test drive data from different drivers, or by using experience data and data from different car manufacturers accumulated during tuning, or by defining corresponding pedal height, pedal force, and acceleration performance curves for drivers of a certain height based on big data.

[0032] Furthermore, the accelerator pedal adjustment mechanism 31 also includes a pedal force adjustment mechanism for adjusting the pedal force of the accelerator pedal 71, and the pedal force adjustment mechanism is electrically connected to the pedal controller.

[0033] Specifically, the pedal force adjustment mechanism includes an adjusting spring 64 and a second rotary drive 61. The adjusting spring 64 is obliquely disposed within the pedal housing 75 and located on the upper right side of the pedal arm 73 of the accelerator pedal 71. The second rotary drive is disposed on the upper part of the pedal arm, and its output shaft is connected to a shaft 62, which is coaxial with the output shaft. At least two baffles 63 for extending into the adjusting spring are vertically disposed on the shaft near the end of the adjusting spring, and the baffles 63 are crisscrossed along the axial direction of the shaft 62. The second rotary drive is electrically connected to the pedal controller. Using this scheme, the pedal controller sends a control command to the second rotary drive, causing the second rotary drive to rotate, and the shaft to rotate accordingly until the corresponding baffles are brought into the adjusting spring. Then, the second rotary drive stops working, thus completing the pedal force adjustment.

[0034] It is understandable that by controlling the rotation angle of the output shaft, i.e., the rotation angle of the shaft, the baffles at different positions on the shaft can be positioned at different axial positions along the adjusting spring. Thus, when the accelerator pedal is depressed, the axial length of the adjusting spring to the right of the baffle is different, meaning the length of the compressed section or working section of the adjusting spring is different. This results in different restoring forces in the compressed section, and consequently, different resistances experienced by the accelerator pedal, thereby adjusting the pedal force. Therefore, when adjusting the accelerator pedal force, the second rotary drive component rotates the shaft, positioning the corresponding baffles at the corresponding positions on the adjusting spring.

[0035] Preferably, the number of baffles 63 is three, such as... Figure 2 As shown. It can be understood that the number of baffles can be flexibly set as needed; the baffles are distributed crosswise along the axial direction of the shaft, that is, the projections of the baffles on the shaft are not on a straight line; the output shaft is perpendicular to the pedal arm; when the pedal arm is in the initial position, the shaft can be parallel to the adjusting spring.

[0036] Specifically, the second rotary drive component is a second motor.

[0037] In one embodiment, the camera 21 communicates with the pedal controller 11, the pedal controller communicates with the accelerator pedal adjustment mechanism, and the pedal controller communicates with the vehicle controller via a CAN network.

[0038] In another embodiment, the camera 21 communicates with the pedal controller 11, the pedal controller communicates with the accelerator pedal adjustment mechanism, and the pedal controller communicates with the vehicle controller via hardwire connections.

[0039] This invention makes the accelerator pedal's pedal surface height, pedal force, and acceleration performance curve adjustable, improving the vehicle's electrification and intelligence levels, and enabling the vehicle to meet the needs of different drivers, effectively enhancing driving comfort and safety. The brake pedal and clutch pedal's pedal surface height and pedal force can also be adjusted using the structure and control method proposed in this invention.

[0040] The above are merely preferred embodiments of the present invention. It should be noted that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. Moreover, after reading the contents of the present invention, those skilled in the art can make various modifications or alterations to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.

Claims

1. An accelerator pedal adjustment system characterized by, It includes a pedal controller, an accelerator pedal adjusting mechanism, a camera, the camera and the accelerator pedal adjusting mechanism are respectively electrically connected with the pedal controller, and the pedal controller is also electrically connected with a vehicle controller of the vehicle; The camera is used for identifying a driver sitting on a main driving position and transmitting biological feature information of the driver to the pedal controller; After the pedal controller receives the biological feature information of the driver, a control instruction is sent to the accelerator pedal adjusting mechanism according to the driving preference of the driver, so that the accelerator pedal adjusting mechanism adjusts the pedal face height and the pedal force according to the control instruction, and the pedal controller sends an acceleration performance adjustment request signal to the vehicle controller, and the vehicle controller adjusts the power output of a power system of the vehicle to complete the adjustment of the acceleration performance curve after receiving the acceleration performance adjustment request signal; The accelerator pedal includes a pedal arm, the pedal arm is rotationally connected with a pedal shell through a rotating shaft, and the lower end of the pedal arm is provided with an accelerator pedal; The accelerator pedal adjusting mechanism includes a pedal face height adjusting mechanism for adjusting the pedal face height of the accelerator pedal and a pedal force adjusting mechanism for adjusting the pedal force of the accelerator pedal; The pedal face height adjusting mechanism includes an adjusting cam and a first rotary driving member for driving the adjusting cam to rotate, the adjusting cam is arranged in the pedal shell and located at the left side of the upper end of the pedal arm, the tip portion of the adjusting cam is arranged downward, and the outer surface of the tip portion is used for contacting the left side surface of the upper end of the pedal arm; the first rotary driving member is electrically connected with the pedal controller; the upper end of the pedal arm is pushed to move leftward or rightward by the adjusting cam, so that the accelerator pedal arranged on the lower end of the pedal arm moves arcuately rightward or leftward; The pedal force adjusting mechanism includes an adjusting spring and a second rotary driving member, and the adjusting spring is arranged obliquely in the pedal shell and located at the right side of the upper portion of the pedal arm of the accelerator pedal; The second rotary driving member is arranged on the upper portion of the pedal arm, an output shaft of the second rotary driving member is connected with a shaft rod, the shaft rod is coaxial with the output shaft, at least two blocking pieces are vertically arranged on one end of the shaft rod close to the adjusting spring and used for extending into the adjusting spring, and the blocking pieces are distributed in the axial direction of the shaft rod.

2. The accelerator pedal adjustment system of claim 1, wherein The pedal face height adjusting mechanism is electrically connected with the pedal controller.

3. The accelerator pedal adjustment system of claim 1, wherein The first rotary driving member is a first motor.

4. The accelerator pedal adjustment system of claim 1, wherein The pedal force adjusting mechanism is electrically connected with the pedal controller.

5. The accelerator pedal adjustment system of claim 1, wherein The number of the blocking pieces is three.

6. The accelerator pedal adjustment system of claim 1, wherein The second rotary driving member is a second motor.

7. The accelerator pedal adjustment system of claim 1, wherein The camera, the pedal controller, the pedal controller and the accelerator pedal adjusting mechanism and the pedal controller and the vehicle controller are communicated through a CAN network.

8. The accelerator pedal adjustment system of claim 1, wherein The camera, the pedal controller, the pedal controller and the accelerator pedal adjusting mechanism and the pedal controller and the vehicle controller are communicated through a hard-wire connection.

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