Questions tagged [differential-drive]

Differential drive is a commonly used drive system, which consists of two independently controlled wheels.

12 questions with no upvoted or accepted answers
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Reward Function for q learning on a robot

I have 2 wheeled differential drive robot which I use pid for low level control to follow line. I implemented q learning which uses samples for 16 iterations then uses them to decide the best position ...
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0answers
41 views

Motor acceleration and position with PID control

I'm working on a robot with differential drive (2 drive wheels equipped with rotary encoders and 4 free spinning omni wheels for stability) and each wheel is controlled via a separate arduino nano. I ...
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0answers
53 views

4 wheeled differential wheeled (skid-steer) robot steering problem

My question is about a square shaped differential wheeled robot, I built, that has a hub-motor (BLDC motor) attached to each corner, i.e., the wheels on the same side, either left or right, have the ...
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0answers
207 views

Q Learning And Kohonen Maps For Line Follower Robot

I'm trying to build a line follower robot and I'm interested in predicting the curves on the track. I have 8 binary sensor array(qre1113). My goal is to make a system that it can generalize what it ...
1
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0answers
698 views

Acceleration formula for a differential steering robot

I have the formulas to derive the RPM's of each wheel from the robot's linear velocity. Now, I am trying to do the same thing for the acceleration (mainly angular acceleration). For linear ...
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1answer
10 views

How to design a robot chassis so as to avoid bending issues?

I'm good on the programming, control systems and electronics aspect of robotics, but need help with a problem with mechanical design. How do I avoid bending of my chassis due to weight? It is a 2 ...
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0answers
25 views

Dead reckoning position estimation

I attached two quadrature optical encoders to the wheel of the mobile robot. I also have imu6050 attached to the breadboard to calculate the orientation of the wheel mobile robot localization. I want ...
0
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0answers
22 views

Mapping PID output to motors in 2WD line tracker

Recently at a small robotics design competition, a part of the challenge involved line tracking. Our implementation included six photo resistors on the bottom of the base and differential steering. ...
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0answers
76 views

Implementing a high-level PID controller which uses odometry in diff drive wheeled robot

How I can implement a high level PID controller that uses odometry to couple both motors in a diff drive wheeled robot? This is my try: From the motor controller, I can get the estimated speed in ...
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0answers
40 views

How to make a diff robot (2 traction wheels front and 2 castor wheels back) to go straight?

I’m developing a differential robot. My wheeled robot has two castor wheels in the back and two driven wheels in the front. The motor controller I’m using can handle two motors each with 90 cpr. Each ...
0
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1answer
104 views

Effects of distance between wheels on differential line following robots

I have been working on a line following robot for a line tracing competition. It has 7 IR sensors for line detection and the robot size is limited based on the competition rules. The robot structure ...
0
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2answers
63 views

Motor encoders randomly start counting backward, then go back to normal

I am making an Arduino-controlled differential drive robot, and I am having the following problems: the encoders built into the motors are being used for measuring the rotary displacement, and while ...