An integrated pedal acceleration and braking system and use method thereof

Abstract

The present invention discloses an acceleration and braking system of an integrated pedal, which belongs to the technical field of automobile pedals, and aims to provide an acceleration and braking system of an integrated pedal that is easy to operate and improves driving safety. The key points of the technical solution are that it includes a base, a single pedal is provided on the base, the bottom of the single pedal is hinged to the base, a displacement sensor is provided between the single pedal and the base, one end of the displacement sensor is hinged to the single pedal, and the other end is hinged to the base, a reset mechanism for driving the single pedal back to the initial position is provided between the base and the single pedal, and a braking mechanism is also provided on the base. The acceleration and braking system of the integrated pedal also includes an ECU, and the ECU is electrically connected to the displacement sensor and the braking mechanism. A method for using an acceleration and braking system of an integrated pedal belongs to the technical field of automobile pedals.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile pedals, and in particular to an acceleration and braking system of an integrated pedal and a use method thereof. Background Art

[0002] The current automobile control system, only in terms of the operating end settings under the foot (in front of the foot), manual transmission cars have three pedals side by side, namely the clutch pedal, brake pedal, and accelerator pedal; automatic transmission cars have two pedals, namely the brake pedal and the accelerator pedal. At the same time, the general driving habit is: the brake pedal and the accelerator pedal share the right foot. There is no doubt that the driver's right foot needs to choose to change positions to operate during driving, especially in the city where there is constant flow of people. The number of times the right foot changes positions is countless. This choice of changing positions will delay a certain amount of time, increase the driver's fatigue, and provide opportunities for wrong stepping. Not only that, for the driver himself, the action of stepping on the pedal is still repeated after choosing to change positions, that is, the knee joint and ankle joint are mixed (used at will), without division of labor and utilization, and wasting the natural resources of the joint segmental activity function and force transmission function. Summary of the invention

[0003] The first object of the present invention is to provide an integrated pedal acceleration and braking system, which combines the functions of a brake pedal and an accelerator pedal into one, and has the advantages of being easy to operate and improving driving safety.

[0004] The above technical objectives of the present invention are achieved through the following technical solutions:

[0005] An integrated pedal acceleration and braking system comprises a base, a single pedal is arranged on the base, the bottom of the single pedal is hinged to the base, a displacement sensor is arranged between the single pedal and the base, one end of the displacement sensor is hinged to the single pedal, and the other end is hinged to the base, a reset mechanism for driving the single pedal back to an initial position is arranged between the base and the single pedal, a braking mechanism is also arranged on the base, and the integrated pedal acceleration and braking system further comprises an ECU, and the ECU is electrically connected to the displacement sensor and the braking mechanism;

[0006] The ECU is used to receive a displacement signal from a displacement sensor. The ECU detects a displacement change of a single pedal based on the displacement sensor and converts the vehicle's operating mode into an acceleration mode or a braking mode.

[0007] By adopting the above technical solution, the displacement sensor detects the different positions of the single pedal and feeds back to the ECU, and the ECU then sends a control signal through the brake mechanism or accelerator, so that the accelerator and brake can be controlled by a single pedal.

[0008] Furthermore, the braking mechanism includes a connecting arm and a servo electric cylinder, the servo electric cylinder is electrically connected to the ECU, the bottom of the connecting arm is hinged to the base, the output shaft of the servo electric cylinder is hinged to the connecting arm, the cylinder body of the servo electric cylinder is hinged to the base, the connecting arm is provided with a connecting rod perpendicular to the connecting arm, the base is provided with a brake cylinder, and the top of the piston rod of the brake cylinder is hinged to the connecting rod.

[0009] By adopting the above technical solution, after the servo electric cylinder receives the brake signal from the ECU, its output shaft is retracted, the output shaft drives the connecting arm to swing, the connecting arm drives the piston rod of the brake cylinder to retract, and oil is injected into the brake system for braking. When the brake needs to be released, the output shaft of the servo electric cylinder is extended, and the piston rod of the brake cylinder is pulled out to release the brake.

[0010] Furthermore, the reset mechanism includes a reset spring and a reset connecting rod, the reset connecting rod is rotatably connected to the base, one end of the reset connecting rod is hinged to the single pedal, and a reset spring is provided between the other end and the base, one end of the reset spring is fixedly connected to the reset connecting rod, and the other end is fixedly connected to the base.

[0011] By adopting the above technical solution, when the single pedal is stepped on, the single pedal drives the return spring to stretch through the return connecting rod. When the single pedal is released, the return spring drives the single pedal to return to its original position due to the elastic force of the return spring.

[0012] Furthermore, the connecting arm is a brake pedal, and the brake pedal is detachably connected to the servo electric cylinder.

[0013] By adopting the above technical solution, when the brake pedal is connected to the servo electric cylinder, a single-pedal mode is adopted, and when the brake pedal is disconnected from the servo electric cylinder, it can be converted into a double-pedal mode.

[0014] Furthermore, a first connecting hole is provided at the top end of the output shaft of the servo electric cylinder, a second connecting hole is provided at the connecting arm, and a locking pin is passed through the first connecting hole and the second connecting hole.

[0015] By adopting the above technical solution, when the single-pedal mode is adopted, the connecting arm and the servo electric cylinder can be connected together through the locking pin. When the double-pedal mode is adopted, the locking pin is pulled out to release the connection between the connecting arm and the servo electric cylinder.

[0016] Furthermore, a locking assembly for driving the locking pin to move forward and backward is provided between the locking pin and the connecting arm, the locking assembly includes a sleeve arranged on the connecting arm, the sleeve is connected to the second connecting hole, the locking pin is slidably arranged in the sleeve, the length of the sleeve is greater than or equal to the length of the locking pin, a compression spring that interferes with the locking pin is provided in the sleeve, the compression spring is located at the end of the locking pin facing away from the second connecting hole, a wire hole is provided on the side of the sleeve facing away from the second connecting hole, a pull wire is passed through the wire hole, and the pull wire is fixedly connected to the locking pin.

[0017] By adopting the above technical solution, when it is necessary to release the connection between the connecting arm and the servo electric cylinder, the pull wire is pulled to disengage the locking pin from the first connecting hole and the second connecting hole. When it is necessary to connect the connecting arm and the servo electric cylinder together, the pull wire is released to insert the locking pin into the first connecting hole and the second connecting hole to lock the connecting arm and the servo electric cylinder together.

[0018] Furthermore, the pull wire is connected to a servo motor, and the servo motor is used to reel in the pull wire, and the servo motor is electrically connected to the ECU.

[0019] By adopting the above technical solution, the pull wire is wound and released by the servo motor, which is convenient for operation.

[0020] The second object of the present invention is to provide a method for using an integrated pedal acceleration and braking system, which has the advantages of easy operation and improved driving safety.

[0021] The above technical objectives of the present invention are achieved through the following technical solutions:

[0022] The acceleration and braking system includes an integrated pedal as described above, wherein the single pedal movement range is divided into an acceleration range and a braking range, the critical point between the acceleration range and the braking range is set as point B, the limit position of the braking range is set as point A, and point A is the position with the maximum braking force, at which time the vehicle is in a parking state, and the limit position of the acceleration range is set as point C, and point C is the position with the maximum throttle.

[0023] First start the car, and the ECU starts working. The driver can select single-pedal mode or double-pedal mode through the ECU. The default is single-pedal mode.

[0024] The specific steps for starting the car in one-pedal mode are as follows:

[0025] S1: ECU detects the position of the servo motor and determines whether the servo motor is in the state of winding the wire. If it is in the state of winding the wire, S2 is started. If it is not in the state of winding the wire, the servo motor is started to release the wire and then S2 is started.

[0026] S2: ECU sends a brake signal to the servo cylinder, which contracts its output shaft to push the piston rod of the brake cylinder to achieve hydraulic braking. At this time, the parking brake or electronic parking brake can be released;

[0027] S3: Press the single pedal to gradually release the hydraulic brake from point A to point B. The displacement sensor detects the position of the single pedal and sends a brake release signal to the brake mechanism through the ECU until the hydraulic brake is completely released when the single pedal is pressed.

[0028] S4: Continue to depress the single pedal and move between points B and C. The displacement sensor detects the position of the single pedal and controls the throttle through the ECU.

[0029] The specific steps for parking in single-pedal mode are as follows:

[0030] A1: Release the single pedal and gradually release the accelerator from point C to point B. The displacement sensor detects the position of the single pedal and controls the accelerator through the ECU until the accelerator is completely released at point B.

[0031] A2: Continue to release the accelerator from point B to point A. The displacement sensor detects the position of the single pedal and controls the braking mechanism through the ECU until it reaches point A, which is in the maximum braking state.

[0032] A3: After the engine is turned off, use the handbrake or electronic parking brake. After receiving the parking signal control, the ECU sends a signal to the servo cylinder to release the hydraulic brake;

[0033] The specific steps for starting the car in two-pedal mode are as follows:

[0034] B1: ECU detects the position of the servo motor and determines whether the servo motor is in the state of winding the wire. If the servo motor is in the state of winding the wire and the connecting arm is separated from the servo electric cylinder, B2 is executed. If the servo motor is not in the state of winding the wire, the servo motor is started to reel in the wire, so that the connecting arm is separated from the servo electric cylinder, and then B2 is executed.

[0035] B2: Release the handbrake or electronic parking brake, press the single pedal, cross point B, and move between point B and point C. The displacement sensor detects the position of the single pedal and controls the throttle through the ECU;

[0036] The specific steps for parking in two-pedal mode are as follows:

[0037] C1: Release the single pedal and gradually release the accelerator from point C to point B. The displacement sensor detects the position of the single pedal and controls the accelerator through the ECU until the accelerator is completely released at point B.

[0038] C2: Continue to release the single pedal and press the brake pedal to hydraulically brake the vehicle;

[0039] C3: After turning off the engine, use the handbrake or electronic parking brake and release the brake pedal.

[0040] By adopting the above technical solution, two modes, single-pedal and double-pedal, can be selected, and the single-pedal mode is easier to operate.

[0041] Furthermore, when the single-pedal mode and the dual-pedal mode are interchanged, the vehicle needs to be stopped and the parking brake is completed before switching.

[0042] By adopting the above technical solution, it is safer to switch between single-pedal mode and double-pedal mode when parking.

[0043] In summary, the present invention has the following beneficial effects:

[0044] 1. Through the setting of displacement sensor, a single pedal can realize both braking and acceleration functions at the same time, which makes the operation easier;

[0045] 2. By adopting a detachable connection between the connecting arm and the servo electric cylinder, the single-pedal and double-pedal driving operation modes can be switched;

[0046] 3. When the vehicle is on a slope, even if the driver does not pull the handbrake, it can stay on the slope stably without sliding down, ensuring the safety of the vehicle;

[0047] 4. The ECU can store a variety of braking modes for gravel roads, sand and gravel roads, rain and snow roads, etc., and detect road conditions through sensors installed on the vehicle, thus providing the feasibility for the ECU to autonomously select the best braking mode in the future automatic braking mode. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 is the electrical control block diagram in Example 1;

[0049] Figure 2 is a schematic diagram for embodying an integrated pedal in Embodiment 1;

[0050] Figure 3 It is a schematic diagram for showing the positions of the three points A, B and C of the single pedal in Example 1;

[0051] Figure 4 is a schematic diagram for illustrating the braking mechanism in Embodiment 1;

[0052] Figure 5 It is a schematic diagram used to illustrate the locking component in Example 1.

[0053] In the figure, 1. base; 2. single pedal; 3. displacement sensor; 4. reset mechanism; 41. reset spring; 42. reset connecting rod; 5. brake mechanism; 51. servo electric cylinder; 511. first connecting hole; 52. connecting arm; 521. second connecting hole; 53. connecting rod; 54. brake cylinder; 55. locking pin; 6. locking assembly; 61. sleeve; 62. compression spring; 63. pull wire; 64. servo motor. DETAILED DESCRIPTION

[0054] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0055] The same parts are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "bottom" and "top", "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0056] Embodiment 1: An integrated pedal acceleration and braking system, such as Figure 1 As shown, it includes a base 1, on which a single pedal 2, a brake mechanism 5, and an ECU are arranged, a displacement sensor 3 is arranged between the single pedal 2 and the base 1, and the ECU is electrically connected to the brake mechanism 5 and the displacement sensor 3.

[0057] The ECU is used to receive the displacement signal of the displacement sensor 3 . The ECU detects the displacement change of the single pedal 2 according to the displacement sensor 3 , and converts the operation mode of the vehicle into the acceleration mode or the braking mode.

[0058] In addition, the ECU can store a variety of braking modes for dealing with gravel roads, sand and gravel roads, rain and snow roads, etc., and detect road conditions through sensors installed on the vehicle to select the best braking mode.

[0059] like Figure 2 As shown, the movement range of the single pedal 2 is divided into an acceleration range and a braking range, the critical point between the acceleration range and the braking range is set as point B, the limit position of the braking range is set as point A, point A is the position with the maximum braking force, and the vehicle is in a parking state at this time, and the limit position of the acceleration range is set as point C, and point C is the position with the maximum throttle. That is, when the single pedal 2 is stepped on to the lowest point C, the vehicle is in a state with the maximum throttle, and when the single pedal 2 is released to the highest point A, the vehicle is in a state with the strongest braking, that is, a parking state.

[0060] like Figure 1 and 2 As shown, the top end of the displacement sensor 3 is hinged to the single pedal 2, and the bottom end is hinged to the base 1. A reset mechanism 4 is provided between the base 1 and the single pedal 2 to drive the single pedal 2 back to the initial position (ie, point C).

[0061] like Figure 1 As shown, the reset mechanism 4 includes a reset spring 62 and a reset connecting rod 42. The reset connecting rod 42 is rotatably connected to the base 1. One end of the reset connecting rod 42 is hinged to the single pedal 2, and a reset spring 62 is provided between the other end and the base 1. One end of the reset spring 62 is fixedly connected to the reset connecting rod 42, and the other end is fixedly connected to the base 1.

[0062] Point B is the initial position of the single pedal 2. When the single pedal 2 is stepped on, the single pedal 2 drives the return spring 62 to stretch through the return link 42. When the single pedal 2 is released, the return spring 62 drives the single pedal 2 to return to point B due to the elastic force of the return spring 62.

[0063] like Figure 4 As shown, the brake mechanism 5 includes a connecting arm 52 and a servo electric cylinder 51. The servo electric cylinder 51 is electrically connected to the ECU. The bottom end of the connecting arm 52 is hinged to the base 1. The back of the connecting arm 52 is hinged to the top of the output shaft of the servo electric cylinder 51. The cylinder body of the servo electric cylinder 51 is hinged to the base 1. The connecting arm 52 is provided with a connecting rod 53 which is vertically arranged thereto. Two brake cylinders 54 are provided on the base 1. The brake cylinders 54 are located on both sides of the connecting arm 52. The top of the piston rod of the brake cylinder 54 is hinged to the connecting arm 52.

[0064] When the vehicle needs to be braked, the servo electric cylinder 51 retracts the piston rod to drive the connecting arm 52 to swing, and the connecting arm 52 drives the piston rod of the brake cylinder 54 to retract, injecting oil into the brake system for braking. When the brake needs to be released, the output shaft of the servo electric cylinder 51 is extended, and the piston rod of the brake cylinder 54 is pulled out to release the brake.

[0065] like Figure 4 and 5 As shown, the connecting arm 52 is a brake pedal, which is detachably connected to the servo cylinder 51. A first connecting hole 511 is provided at the top of the output shaft of the servo cylinder 51, and a second connecting hole 521 is provided at the connecting arm 52. A locking pin 55 is passed between the first connecting hole 511 and the second connecting hole 521.

[0066] The single pedal mode can be converted into the double pedal mode by pulling out the locking pin 55, and the single pedal mode can be converted back into the double pedal mode by inserting the locking pin 55.

[0067] like Figure 4 and 5 As shown, a locking assembly 6 for driving the locking pin 55 to move forward and backward is provided between the locking pin 55 and the connecting arm 52. The locking assembly 6 includes a sleeve 61 arranged on the connecting arm 52. The sleeve 61 is connected to the second connecting hole 521. The locking pin 55 is slidably arranged in the sleeve 61. The length of the sleeve 61 is greater than or equal to the length of the locking pin 55.

[0068] A compression spring 62 that contacts the locking pin 55 is provided in the sleeve 61 . The compression spring 62 is located at the end of the locking pin 55 that faces away from the second connecting hole 521 . A wire hole is provided on the side of the sleeve 61 that faces away from the second connecting hole 521 . A pull wire 63 is passed through the wire hole. The pull wire 63 is fixedly connected to the locking pin 55 .

[0069] The locking pin 55 can be pulled by pulling the wire 63 to be pulled out from between the connecting arm 52 and the servo cylinder 51; by loosening the wire 63, the locking pin 55 can be inserted between the connecting arm 52 and the servo cylinder 51 and move with the output shaft of the connecting arm 52 and the servo cylinder 51.

[0070] The cable 63 is connected to a servo motor 64, and the servo motor 64 is used to reel in the cable 63. The servo motor 64 is electrically connected to the ECU. The servo motor 64 is controlled by the ECU to switch between the single pedal 2 and the double pedals.

[0071] Embodiment 2: A method for using an integrated pedal acceleration and braking system, such as Figures 1 to 5 As shown, the acceleration and braking system including the integrated pedal described above, the movement range of the single pedal 2 is divided into an acceleration range and a braking range, the critical point between the acceleration range and the braking range is set as point B, the limit position of the braking range is set as point A, point A is the position with the maximum braking force, at this time it is in a parking state, the limit position of the acceleration range is set as point C, point C is the position with the maximum throttle,

[0072] First start the car, and the ECU starts working. The driver can select single-pedal mode or double-pedal mode through the ECU. The default is single-pedal mode.

[0073] The specific steps for starting the car in one-pedal mode are as follows:

[0074] S1: ECU detects the position of the servo motor 64, and determines whether the servo motor 64 is in the state of winding the cable 63. If it is in the state of winding the cable 63, S2 is started. If it is not in the state of winding the cable 63, the servo motor 64 is started to release the cable 63, and then S2 is started.

[0075] S2: ECU sends a brake signal to the servo electric cylinder 51, and the servo electric cylinder 51 contracts its output shaft to push the piston rod of the brake cylinder 54 to contract to achieve hydraulic braking. At this time, the handbrake parking brake or electronic parking brake can be released;

[0076] S3: Depress the single pedal 2 to gradually release the hydraulic brake from point A to point B. The displacement sensor 3 detects the position of the single pedal 2 and sends a brake release signal to the brake mechanism 5 through the ECU until the hydraulic brake is completely released when the single pedal 2 reaches point B.

[0077] S4: Continue to press the single pedal 2 and move between points B and C. The displacement sensor 3 detects the position of the single pedal 2 and controls the throttle through the ECU;

[0078] The specific steps for parking in single-pedal mode are as follows:

[0079] A1: Release the single pedal 2, and gradually release the accelerator from point C to point B. The displacement sensor 3 detects the position of the single pedal 2, and controls the accelerator through the ECU until the accelerator is completely released at point B.

[0080] A2: Continue to release the accelerator from point B to point A. The displacement sensor 3 detects the position of the single pedal 2 and controls the brake mechanism 5 through the ECU until point A is in the maximum braking state.

[0081] A3: After the engine is turned off, use the handbrake or electronic parking brake. After receiving the parking signal control, the ECU sends a signal to the servo cylinder to release the hydraulic brake;

[0082] The specific steps for starting the car in two-pedal mode are as follows:

[0083] B1: ECU detects the position of the servo motor 64 and determines whether the servo motor 64 is in the state of winding the cable 63. If the servo motor 64 is in the state of winding the cable 63 and the connecting arm 52 is separated from the servo electric cylinder 51, B2 is executed. If the servo motor 64 is not in the state of winding the cable 63, the servo motor 64 is started to reel in the cable 63, so that the connecting arm 52 is separated from the servo electric cylinder 51, and then B2 is executed.

[0084] B2: Release the handbrake or electronic parking brake, press single pedal 2, cross point B, and move between point B and point C. The displacement sensor 3 detects the position of single pedal 2 and controls the throttle through the ECU;

[0085] The specific steps for parking in two-pedal mode are as follows:

[0086] C1: Release the single pedal 2, and gradually release the accelerator from point C to point B. The displacement sensor 3 detects the position of the single pedal 2, and controls the accelerator through the ECU until the accelerator is completely released at point B.

[0087] C2: Continue to release single pedal 2 and press the brake pedal to hydraulically brake the vehicle;

[0088] C3: After turning off the engine, use the handbrake or electronic parking brake and release the brake pedal.

[0089] In dual-pedal mode, the ECU can also reset the movement range of single pedal 2. Points A to C are the throttle working range of the single pedal, and the position of single pedal 2 is detected by displacement sensor 3 to control the acceleration system.

[0090] When switching between single-pedal mode and dual-pedal mode, you need to stop the vehicle and complete the parking brake before switching, which is safer.

[0091] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. An integrated pedal acceleration and braking system, comprising a base (1), a single pedal (2) being provided on the base (1), the bottom of the single pedal (2) being hinged to the base (1), characterized in that: A displacement sensor (3) is provided between the single pedal (2) and the base (1); one end of the displacement sensor (3) is hinged to the single pedal (2), and the other end is hinged to the base (1); a reset mechanism (4) is provided between the base (1) and the single pedal (2) for driving the single pedal (2) back to an initial position; a braking mechanism (5) is also provided on the base (1); the acceleration and braking system of the integrated pedal further comprises an ECU; the ECU is electrically connected to the displacement sensor (3) and the braking mechanism (5); the ECU is used to receive a displacement signal from the displacement sensor (3); and the ECU converts the operation mode of the vehicle into an acceleration mode or a braking mode according to the displacement change of the single pedal (2) detected by the displacement sensor (3). The latter is a braking mode, wherein the braking mechanism (5) comprises a connecting arm (52) and a servo electric cylinder (51), wherein the servo electric cylinder (51) is electrically connected to the ECU, wherein the bottom of the connecting arm (52) is hinged to the base (1), wherein the output shaft of the servo electric cylinder (51) is hinged to the connecting arm (52), wherein the cylinder body of the servo electric cylinder (51) is hinged to the base (1), wherein a connecting rod (53) perpendicular to the connecting arm (52) is provided on the connecting arm (52), wherein a brake cylinder (54) is provided on the base (1), wherein the top end of the piston rod of the brake cylinder (54) is hinged to the connecting rod (53), and wherein the reset mechanism (4) comprises a reset spring (41) and a reset connecting rod (42), wherein the reset connecting rod (42) is rotated with the base (1) The reset link (42) is hingedly connected to the single pedal (2) at one end, and a reset spring (41) is provided between the other end and the base (1); the reset spring (41) is fixedly connected to the reset link (42) at one end, and fixedly connected to the base (1) at the other end; the connection arm (52) is a brake pedal, and the brake pedal is detachably connected to the servo electric cylinder (51); a first connection hole (511) is provided at the top end of the output shaft of the servo electric cylinder (51); a second connection hole (521) is provided on the connection arm (52); a locking pin (55) is provided between the first connection hole (511) and the second connection hole (521); and a locking pin (55) is provided between the locking pin (55) and the connection arm (52) for driving the locking pin (55). A locking assembly (6) that moves forward and backward, the locking assembly (6) comprising a sleeve (61) arranged on a connecting arm (52), the sleeve (61) being in communication with a second connecting hole (521), the locking pin (55) being slidably arranged in the sleeve (61), the length of the sleeve (61) being greater than or equal to the length of the locking pin (55), a compression spring (62) being arranged in the sleeve (61) and being in contact with the locking pin (55), the compression spring (62) being located at an end of the locking pin (55) that faces away from the second connecting hole (521), a wire hole being arranged on a side of the sleeve (61) that faces away from the second connecting hole (521), a pull wire (63) being passed through the wire hole, and the pull wire (63) being fixedly connected to the locking pin (55).

2. The integrated pedal acceleration and braking system according to claim 1, characterized in that: The pull wire (63) is connected to a servo motor (64), and the servo motor (64) is used to reel in the pull wire (63). The servo motor (64) is electrically connected to the ECU.

3. A method for using an integrated pedal acceleration and braking system, comprising the integrated pedal acceleration and braking system according to claim 2, characterized in that: The single pedal (2) movement range is divided into an acceleration range and a braking range. The critical point between the acceleration range and the braking range is set to point B. The limit position of the braking range is set to point A. Point A is the position with the maximum braking force. At this time, the vehicle is in a parking state. The limit position of the acceleration range is set to point C. Point C is the position with the maximum throttle. First, the vehicle is started and the ECU starts working. The driver can select a single pedal mode or a double pedal mode through the ECU. The single pedal mode is the default. The specific steps for starting the vehicle in the single pedal mode are as follows: S1: The ECU detects the position of the servo motor (64) and determines whether the servo motor (64) is in a state of winding the cable (63). If it is in a state of winding the cable (63), S2 is executed. If it is not in a state of winding the cable (63), the servo motor (64) is started to release the cable (63), and then S2 is executed. S2: The ECU sends a braking signal to the servo electric cylinder (51), and the servo electric cylinder (51) contracts its output shaft to push The piston rod of the brake cylinder (54) contracts to realize hydraulic braking, at which time the handbrake parking or electronic parking can be released; S3: Depress the single pedal (2), and gradually release the hydraulic brake from point A to point B. The displacement sensor (3) detects the position of the single pedal (2), and sends a brake release signal to the brake mechanism (5) through the ECU until the hydraulic brake is completely released when point B is reached; S4: Continue to depress the single pedal (2), and move between points B and C. The displacement sensor (3) detects the position of the single pedal (2) and controls the throttle through the ECU; the specific steps of parking in the single pedal mode are as follows: A1: Release the single pedal (2), and gradually release the throttle from point C to point B. The displacement sensor (3) detects the position of the single pedal (2), and controls the throttle through the ECU, and completely releases the throttle at point B; A2: Continue to release the throttle from point B to point A. The displacement sensor (3) detects the position of the single pedal (2), and controls the brake mechanism (5) through the ECU, and the throttle is in the maximum braking state at point A; A3: After the engine is turned off, the handbrake or electronic parking brake is used. After receiving the parking signal control, the ECU sends a signal to release the hydraulic brake to the servo cylinder (51). The specific steps for starting the car in the dual-pedal mode are as follows: B1: The ECU detects the position of the servo motor (64) and determines whether the servo motor (64) is in the state of winding the cable (63). If the servo motor (64) is in the state of winding the cable (63), the connecting arm (52) is disconnected from the servo cylinder (51), and B2 is executed. If the servo motor (64) is not in the state of winding the cable (63), the servo is started. The servo motor (64) reels in the cable (63), causing the connecting arm (52) to disengage from the servo cylinder (51), and then starts to execute B2; B2: release the handbrake or electronic parking brake, step on the single pedal (2), pass point B, and move between point B and point C. The displacement sensor (3) detects the position of the single pedal (2) and controls the throttle through the ECU; the specific steps of parking in the dual-pedal mode are as follows: C1: release the single pedal (2), gradually release the throttle from point C to point B, the displacement sensor (3) detects the position of the single pedal (2), controls the throttle through the ECU, and completely releases the throttle at point B; C2: Continue to release the single pedal (2) and press the brake pedal to hydraulically brake the vehicle; C3: After turning off the engine, use the handbrake or electronic parking brake and release the brake pedal.

4. The method for using the integrated pedal acceleration and braking system according to claim 3, characterized in that: When switching between the one-pedal mode and the two-pedal mode, you need to stop the vehicle and apply the parking brake before switching.

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