Punching-free action executing mechanism for speed control of pilotless automobile

Abstract

The utility model provides a punching-free action executing mechanism for speed control of a pilotless automobile. The punching-free action executing mechanism mainly solves the problem that an executing mechanism for speed control cannot be rapidly modified in a lossless mode on an existing automobile. The utility model discloses a punching-free action executing mechanism for controlling the speed of a pilotless automobile. The punching-free action executing mechanism is characterized by comprising a steel wire stay wire, a fixed pulley, a steel wire sleeve, a steel wire buckle and a fixed support, a fixed pulley is mounted on the fixed support; the fixed support is fixed in a screw hole of a vehicle control rod base through a screw; a steel wire buckle is arranged on the vehicle control rod; the steel wire buckle is fixedly connected with a vehicle control rod; a steel wire stay wire is arranged on the steel wire buckle; one end of the steel wire stay wire is fixedly connected with the steel wire buckle; the other end of the steel stay wire bypasses the fixed pulley and is connected with an external control mechanism; after installation and connection, the steel wire stay wire between the fixed pulley and the steel wire buckle is perpendicular to the vehicle control rod.

Description

Technical Field

[0001] The present invention belongs to the field of driverless car control, and in particular relates to a punch-free action execution mechanism for driverless car speed control. Background Art

[0002] With the rapid development of automation technology, driverless cars have developed rapidly and have been widely used in many fields. In addition to directional control, driverless cars also need to control the vehicle's speed and brake reliably. Currently, the actuators for driverless car speed control mainly include the following methods:

[0003] 1. Communicate with the car's central control system to generate control commands. This principle is similar to cruise control. By installing a communication cable and an external controller at the vehicle's OBD port and setting the controller parameters, the vehicle can achieve constant speed driving or emergency braking. This solution is technically mature and can be installed without damaging the vehicle. However, due to the wide variety of vehicles on the market and the lack of standardized communication protocols, it is difficult to achieve speed control for vehicles from different manufacturers using a single controller. Furthermore, the communication protocols of most vehicle central control systems are not open to the public, making it difficult to decipher their control protocols.

[0004] 2. Install the actuator on the vehicle floor by drilling holes. Installing the actuator on the vehicle floor drives the crank to rotate to complete the braking and accelerator pedal pressing and lifting actions. This type of actuator is widely used, intuitive to operate, and causes little damage to the vehicle. Drilling holes in the corresponding position on the vehicle floor will damage the integrity of the vehicle and cannot achieve non-destructive installation.

[0005] 3. Redesign the vehicle's throttle and brake control mechanisms. In recent years, a new type of throttle and brake control system has emerged. The throttle and brake control areas are connected to pressure sensors, which are then connected to the throttle and brake systems. These areas are flush with the vehicle's interior floor, replacing traditional mechanical transmission with electrical signal transmission. Pressure sensors receive and transmit signals to control the vehicle's throttle and brakes. This approach subverts the conventional throttle and brake pedal structure, requiring design changes during the vehicle design phase and making it unsuitable for retrofitting onto existing vehicles.

[0006] In summary, in order to solve the problem of non-destructive and universal modification of speed control actuators on existing vehicles, the present invention proposes a punch-free action actuator for speed control of unmanned vehicles. Summary of the Invention

[0007] In order to overcome the shortcomings of the prior art and solve the problem that lossless rapid speed control actuator modification cannot be performed on existing vehicles, the present invention provides a punch-free action actuator for speed control of unmanned vehicles.

[0008] A punch-free action actuator for controlling the speed of an unmanned vehicle comprises a steel wire rope, a fixed pulley, a steel wire sleeve, a steel wire clip and a fixed support; the fixed pulley is mounted on the fixed support; the fixed support is fixed to a screw hole in a base of a vehicle control lever by means of screws; a steel wire clip is provided on the vehicle control lever; the steel wire clip is fixedly connected to the vehicle control lever; a steel wire rope is provided on the steel wire clip; one end of the steel wire rope is fixedly connected to the steel wire clip; the other end of the steel wire rope passes around the fixed pulley and is connected to an external control mechanism; after installation and connection, the steel wire rope between the fixed pulley and the steel wire clip is perpendicular to the vehicle control lever.

[0009] Furthermore, a wire sleeve is provided at one end of the wire rope close to the external control mechanism; the wire rope passes through the wire sleeve and is connected to the external control mechanism; after adding the wire sleeve, the wire rope is prevented from swinging and the linear movement of the wire rope is ensured.

[0010] Furthermore, the vehicle control lever includes a vehicle brake lever or a vehicle throttle connecting lever.

[0011] Furthermore, the wire buckle is an alligator pliers.

[0012] The beneficial effects of the present invention are: in the present invention, the mounting screw hole is shared with the vehicle brake lever or the vehicle throttle connecting rod, and there is no need to re-drill holes on the vehicle floor, thereby maintaining the integrity of the vehicle. At the same time, only a small number of existing mature components are used to complete disassembly and installation, thereby improving the modification efficiency. The overall installation and disassembly does not exceed 10 minutes, and the system installation and modification efficiency is significantly improved. Field test verification shows that the solution is reliable and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of a punch-free universal installation structure for speed control of unmanned vehicles;

[0014] Figure 2 This is a schematic diagram of a punch-free universal installation structure for speed control of unmanned vehicles;

[0015] In the figure, 1-wire buckle, 2-wire pull wire, 3-fixed pulley, 4-wire sleeve, 5-fixed support. DETAILED DESCRIPTION

[0016] The working principle of the present invention is that vehicle speed control ultimately relies on controlling the pedal angle of the accelerator and brake. While the positions of the accelerator and brake vary slightly depending on vehicle specifications, their relative positions are fixed, and the bolt diameter and nut size under the brake mounting base are uniform. The present invention utilizes the mounting screws of the brake mounting base to convert the circular motion of the brake and accelerator into linear motion of the wire, and utilizes the torsion springs of the accelerator and brake pedals to restore the position. The fixed pulley in the proposed solution redirects the force applied to the wire without damaging the original vehicle structure, making it compatible with most vehicles and enabling non-destructive installation.

[0017] The technical solution adopted in the present invention is:

[0018] A punch-free action actuator for controlling the speed of an unmanned vehicle comprises a steel wire rope, a fixed pulley, a steel wire sleeve, a steel wire clip and a fixed support; the fixed pulley is mounted on the fixed support; the fixed support is fixed to a screw hole in a base of a vehicle control lever by means of screws; a steel wire clip is provided on the vehicle control lever; the steel wire clip is fixedly connected to the vehicle control lever; a steel wire rope is provided on the steel wire clip; one end of the steel wire rope is fixedly connected to the steel wire clip; the other end of the steel wire rope passes around the fixed pulley and is connected to an external control mechanism; after installation and connection, the steel wire rope between the fixed pulley and the steel wire clip is perpendicular to the vehicle control lever.

[0019] A wire sleeve is provided at one end of the wire rope close to the external control mechanism; the wire rope passes through the wire sleeve and is connected to the external control mechanism; after adding the wire sleeve, the wire rope is prevented from swinging and the linear motion of the wire rope is ensured.

[0020] The vehicle control lever includes a vehicle brake lever or a vehicle throttle connecting lever.

[0021] The wire buckle is an alligator pliers.

[0022] The present invention will be further described below with reference to the accompanying drawings and examples.

[0023] The installation process of a punch-free action actuator for speed control of an unmanned vehicle is as follows: fix the wire clip on the brake connecting rod, tighten the wire rope, and tighten the wire clip screw; fix the wire clip on the throttle connecting rod, tighten the wire rope, and tighten the wire clip screw; pass the wire rope around the fixed pulley; after passing around the fixed pulley, pass the wire rope through the wire sleeve; remove the screws under the brake mounting seat, and install the fixed support at a screw under the brake mounting support; expand the fixed support, and install the fixed pulley and wire sleeve of the accelerator pedal in the same way; use pliers or other tools to stretch the wire rope to check the execution of the vehicle's throttle and brake.

[0024] After the parts are processed, a part of a punch-free universal mounting mechanism for unmanned vehicle speed control is installed on ordinary cars, SUVs and other vehicles for field sports car testing. There is no need to re-drill holes on the vehicle floor. The installation and removal takes no more than 10 minutes. Only a rotary servo or ball screw needs to be installed at the other end of the steel wire to control the vehicle's throttle and brake pedal depression angle. The system is easy to install.

Claims

1. A punch-free action actuator for speed control of an unmanned vehicle, characterized by: It includes a steel wire rope, a fixed pulley, a steel wire sleeve, a steel wire buckle and a fixed support; the fixed pulley is installed on the fixed support; the fixed support is fixed to the screw hole of the vehicle control rod base by screws; the vehicle control rod is provided with a steel wire buckle; the steel wire buckle is fixedly connected to the vehicle control rod; a steel wire rope is provided on the steel wire buckle; one end of the steel wire rope is fixedly connected to the steel wire buckle; the other end of the steel wire rope passes around the fixed pulley and is connected to the external control mechanism; after installation and connection, the steel wire rope between the fixed pulley and the steel wire buckle is perpendicular to the vehicle control rod.

2. The punch-free action actuator for speed control of an unmanned vehicle according to claim 1, characterized in that: A steel wire sleeve is provided at one end of the steel wire pull line close to the external control mechanism; the steel wire pull line passes through the steel wire sleeve and is connected to the external control mechanism.

3. The punch-free action actuator for speed control of an unmanned vehicle according to claim 1 or claim 2, characterized in that: The vehicle control lever includes a vehicle brake lever or a vehicle throttle connecting lever.

4. The punch-free action actuator for speed control of an unmanned vehicle according to claim 1 or claim 2, characterized in that: The wire buckle is an alligator pliers.

Images