A method of making a model racing car

A kind of model racing car making methodTechnical Field: The utility model relates to the field of intelligent toy racing car, especially to a model racing car. Background Technology: Intelligent model racing cars are widely studied in the field of robotics, and many competitions at home and abroad are based on automatictracing intelligent model racing car as content, such as Freescale Cup Student Smart Car Competition and Renesas Cup MCU Model Racing Competition. At present, most model racing cars use single servo control, and there is a very obvious lag in steering when the model racing car is running, which seriously affects the stability and smoothness of the model racing car. The rudder is a lagging link in the model car control, with slow response speed and large time delay. The faster the response speed of the rudder directly affects the steering performance of the model car during cornering, the more sensitive the car will be when turning, and the higher the car can reach the cornering speed without skidding. Therefore, finding ways to improve the response speed of the servo is a key to improving the average speed of the model car throughout the race. Content of the InventionThe purpose of this utility model is to provide a model racer with fast steering response and stable and smooth cornering.stable and smooth. In order to achieve the above purpose, the utility model adopts the following technical solutions to achieve A model racing car, including a frame, left and right front wheels and left and right rear wheels set on the frame, characterized in that it also includes left and right servos set on the frame, said left and right servos control the left and right front wheels respectively. A further improvement of the utility model is that said left and right servos are symmetrically set on the front of the frame through the fixed plate. The left and right servos have the same connection structure with the left and right front wheels and are symmetrically positioned. The said left and right servos share a common controller and receive the same control signal.

The steering system has a very important role in the operation of the vehicle. The appropriate response parameters of the servo can ensure that the vehicle will not run off during the straight driving process, i.e. to ensure the directional stability of the vehicle; and after the vehicle is turned, the steering torque of the servo can make the vehicle return to the straight driving state by itself, i.e. to have good righting. As the left and right servos are used to control the left and right front wheels respectively, the response speed and torque of the servos are significantly improved, so that the vehicle will not be unable to steer because the power of the servos is too small. Moreover, the left and right servos are connected to the left and right front wheels with the same structure and symmetrical position, and share the same controller and receive the same control signal, so the direction control of the model racing car is smoother.

Specific implementation

The main dimensions of the 3010 servo manufactured by the company are 40. 0mm long, 20. Omm wide, 38. lmrn high, 41 g in weight, with a servo response speed of 0.16 wW60. and a torque of 3.2 Nu/c attached. The main dimensions of the chassis are 316mm in length, 172mm in width, 200mm in wheelbase, 124mm in front wheelbase, and 128mm 138mm in rear wheelbase (adjustable).Referring to Figure 2 and Figure 3, the servo fixing plate 6 is a rectangular frame, and the brass column 11 is used to fix the rectangular frame on the chassis of the model car, and the left and right servos 7 and 8 are set inside the rectangular frame and fixed through eight holes on the frame (each servo needs four holes). The rocker arm 9 of the servo is movably connected to the output arm 10 through the shaft pin, and the other end of the output arm 10 is connected to the wheel. The left and right servos 7 and 8 are connected to the left and right front wheels 1 and 2 with the same structure and symmetrical position. The servo is a position-following system, which consists of a rudder disk, a reduction gear set, a position feedback potentiometer, a DC motor and a controller. With the internal position feedback, the servo can make its rudder disc output rotation angle proportional to the given control signal. The left and right servos 7 and 8 share a common controller and receive the same control signal. It has been proven that when the control signals of left and right servos 7 and 8 are the same, the trolley can be well controlled in direction. The utility model uses dual servos to control the steering of the model racing car with left and right wheels separately has the following points-(1) Ease of operation. It only needs to add one servo on top of the original one servo control, which is relatively easy to operate and convenient to improve the performance of the model car when turning,(2) Flexible steering. With two servo controls, the torque and steering response speed are significantly improved to avoid side slip and holding. (3) Low cost. The market price of one 3010 servo made by Rcstoreonline.com is about $210, two cost $420, and the whole set of mechanism costs about $430. And there is not yet a servo on the market to ensure both high response speed and steering torque such as Fatuba S9254 steering response speed at 0.06mW6 (T, torque only 2.2 ^ / division, the market price of about 600 yuan; such as Fatuba S9402 steering response speed at 0.10m/6 (T, torque only 3.8ifcg / cw, the market price is about $580. Claim 1. A model racing car, comprising a frame, left and right front wheels and left and right rear wheels set on the frame, characterized in that it also includes left and right servos set on the frame, said left and right servos controlling the left and right front wheels respectively. 2. a model racing car according to claim 1, characterized in that said left and right servos are symmetrically provided on the front of the frame by means of fixed plates. 3. A model racing car according to claim 1, characterized in that said left and right servos are connected to the left and right front wheels in the same structure and in symmetrical positions. 4. A model racing car according to claim 1, characterized in that said left and right servos share a controller and receive the same control signals. 5. A model racing car according to claim 1, characterized in that said rudder uses a servo. Patent Abstract The utility model relates to the field of intelligent toy racing car, and in particular to a model racing car. It includes a car frame, left and right front wheels and left and right rear wheels set on the car frame, characterized in that it also includes left and right servos set on the car frame, said left and right servos controlling left and right front wheels respectively.

A racing model speed adjustment method www.rcstoreonline.com