Intelligent parking brake self-locking device

Abstract

The utility model discloses an intelligent parking brake self-locking device which comprises disc brake calipers, a steel wire, a motor, a rotating disc and an angle sensor. The disc brake calipers are fixed on the front wheel assembly with the brake disc, one end of the steel wire is connected with the disc brake calipers, the other end of the steel wire is fixed on the rotating disc, the motor drives the rotating disc to rotate, and the steel wire is wound on the rotating disc so as to tension the disc brake calipers; the angle sensor is arranged on the rotating disc, and the braking state and the braking loosening state are determined through the angle sensor; the self-locking device provided by the embodiment of the utility model is a device with independent automatic parking braking and locking functions, and can be used together with a left and right hand brake braking system with a self-locking parking function on the market, so that a plurality of brake calipers clamp a brake disc together, and the parking resistance is larger and the safety is higher even under the condition that the whole vehicle is fully loaded.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of brake self -locking, specifically related to an intelligent parking brake self -locking device. BACKGROUND

[0002] The parking brake and self -locking device of the current two -wheeled three -wheeled vehicle is realized through the electromagnetic induction mechanism inside the motor. Specifically, when the motor stops rotating, due to the electromagnetic induction phenomenon, the induced electromotive force and electric field inside the motor will disappear. In this way, the motor can not generate new electromotive force and electric field, so it will not generate driving torque, thereby effectively preventing the self -rotation of the motor. In addition, the motor lock of the electric vehicle can also involve the anti -theft function, for example, through the controller to automatically lock the motor, to prevent the vehicle from being stolen. In this case, the motor lock is usually controlled by the MCU (micro control unit) in the controller to control the conduction of the power device, thereby realizing the locking of the motor.

[0003] And the parking brake and self -locking device of the current two -wheeled three -wheeled vehicle has the defects of complex system, high cost, large installation space required, inconvenient application and the like. INVENTION CONTENT

[0004] The utility model discloses a kind of intelligent parking brake self -locking devices, to solve the defects of the parking brake and self -locking device of the current two -wheeled three -wheeled vehicle.

[0005] Technical scheme: an intelligent parking brake self -locking device, comprising: including disc brake caliper, steel wire, motor, rotating disc and angle sensor;The disc brake caliper is fixed on the front wheel assembly with brake disc, one end of the steel wire is connected with disc brake caliper, and the other end is fixed on rotating disc, the motor drives rotating disc to rotate, and steel wire is wound on rotating disc, and then disc brake caliper is tensioned;The angle sensor is arranged on the rotating disc, and the brake state and the brake release state are determined using the angle sensor.

[0006] Further, the rotating disc is an oval rotating disc.

[0007] Further, recess is provided on the rotating disc for coiling steel wire.

[0008] Further, the angle sensor is connected with external MCU, and is used to transmit the angle information of the angle sensor to external MCU.

[0009] Further, the angle information is voltage change value.

[0010] Advantages: compared with prior art, the utility model has the following advantages:

[0011] (1) The self-locking device has the advantages of simple structure, practical principle, low cost and wide application.

[0012] (2) The self-locking device is a high-efficiency stepless speed change system that can adapt to narrow space and can feedback the intention of the user. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 A structure diagram of the intelligent parking brake self-locking device is provided.

[0014] Figure 2 A structure diagram of the disc brake caliper assembly is provided.

[0015] Figure 3 A structure diagram of the elliptical rotating disc is provided.

[0016] Figure 4 A structure diagram of the elliptical rotating disc is provided.

[0017] Figure 5 A voltage-angle linear diagram of the angle sensor is provided. DETAILED DESCRIPTION

[0018] The technical scheme of the present application will be further described in combination with the drawings and embodiments.

[0019] As shown in the drawings, Figure 1 The intelligent parking brake self-locking device provided by the present embodiment mainly comprises: a disc brake caliper assembly 1 and a control unit; one end of the disc brake caliper assembly 1 is fixed on a front wheel assembly with a brake disc through an adaptive mounting seat, and the front wheel assembly with the brake disc is assembled on the front fork of the whole vehicle; the other end of the disc brake caliper assembly 1 is connected with the control unit. The control unit controls the disc brake caliper assembly 1 to tighten the disc brake caliper, which has the same effect as manually pulling the brake handle.

[0020] Specifically, as shown in the drawings, Figure 2 The disc brake caliper assembly 1 of the present embodiment comprises a disc brake caliper, a steel wire 11 and other components; one end of the steel wire is connected to the disc brake caliper, and the other end is fixed inside the control unit.

[0021] As shown in the drawings, Figure 3 and Figure 4 The control unit 3 of the present embodiment comprises a motor, an elliptical rotating disc 2 and an angle sensor; the other end of the steel wire in the disc brake caliper assembly 1 is fixed on the elliptical rotating disc 2, the elliptical rotating disc 2 is coupled with the motor, and the angle sensor is arranged on the elliptical rotating disc 2. The motor drives the elliptical rotating disc 2 to rotate, and then the steel wire is wound in the groove of the elliptical rotating disc. The steel wire is wound on the elliptical rotating disc, thereby tightening the disc brake caliper, which has the same effect as manually pulling the brake handle.

[0022] The angle sensor installed on the elliptical rotating disk has the following relationship between voltage and angle: Figure 5 As shown, to control the braking response time within 3 seconds, the motor speed is fixed, so only the braking angle range can be controlled. When the device is powered on, the MCU issues a command, and the parking brake automatically calculates the braking travel by releasing and then tightening the brake disc, achieving automatic calibration to compensate for brake pad wear. Therefore, each time the MCU calibrates to compensate for brake pad wear, it uses the braking state as a reference and controls the motor rotation to loosen the elliptical rotating disc by a certain angle, from the braking state to the released state. The released brake state refers to the state with a relative clearance of 0.7mm between the brake pad and the brake disc on one side. This determines the operating rotation angle range of the elliptical rotating disc after this calibration. At the same time, the angle sensor sends its own voltage change value to the MCU, which then issues an execution command based on this voltage change.

[0023] The self-locking device proposed in this embodiment features independent automatic parking brakes and a vehicle lock. It can be used in conjunction with existing left and right handbrake systems with self-locking parking features. This allows multiple brake calipers to jointly engage the brake discs, providing greater parking resistance and improved safety even when the vehicle is fully loaded. Furthermore, the self-locking device proposed in this embodiment can automatically lock the vehicle in the event of a short stop, automatic sleep, or power outage. This feature reduces the hassle of couriers frequently locking and shutting down their vehicles, significantly saving them time and energy.

Claims

1. An intelligent parking brake self-locking device, characterized in that: include: It includes a disc brake caliper, a steel wire, a motor, a rotating disk and an angle sensor; the disc brake caliper is fixed to a front wheel assembly with a brake disc, one end of the steel wire is connected to the disc brake caliper, and the other end is fixed to the rotating disk, the motor drives the rotating disk to rotate, and the steel wire is wound around the rotating disk, thereby tightening the disc brake caliper; the angle sensor is arranged on the rotating disk, and the angle sensor is used to determine the braking state and the release state of the brake.

2. The intelligent parking brake self-locking device according to claim 1, characterized in that: The rotating disk is an elliptical rotating disk.

3. The intelligent parking brake self-locking device according to claim 1, characterized in that: The rotating disk is provided with a groove for winding the steel wire.

4. The intelligent parking brake self-locking device according to claim 1, characterized in that: The angle sensor is connected to the external MCU and is used to transmit angle information of the angle sensor to the external MCU.

5. The intelligent parking brake self-locking device according to claim 4, characterized in that: The angle information is a voltage change value.

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