x-engineer.org

x-engineer.org

Engineering tutorials

Proportional (P) controller – x-engineer.org 09/01/2023

https://x-engineer.org/proportional-controller/

Proportional (P) controller – x-engineer.org A technical article about proportional controllers provides detailed information about how these controllers work, their equations and practical examples, as well as their advantages and disadvantages.

07/12/2022

ACTIVE vs. REACTIVE POWER

Do you know the difference between active and reactive power? You will after reading this article!
https://x-engineer.org/active-vs-reactive-power/

How to calculate road slope (gradient) force – x-engineer.org 29/03/2022

https://x-engineer.org/road-slope-gradient-force/

How to calculate road slope (gradient) force – x-engineer.org Tutorial on how to calculate road slope force and power with hands-on example and on-line calculator.

How to calculate aerodynamic drag force – x-engineer.org 24/03/2022

https://x-engineer.org/aerodynamic-drag/

How to calculate aerodynamic drag force – x-engineer.org Tutorial on how to calculate aerodynamic drag resistance force and power with hands-on example and on-line calculator.

How to calculate rolling resistance – x-engineer.org 22/03/2022

https://x-engineer.org/rolling-resistance/

How to calculate rolling resistance – x-engineer.org Tutorial on how to calculate rolling resistance coefficient and force with hands-on example and on-line calculator.

How to calculate wheel curb climbing torque – x-engineer.org 14/03/2022

How to calculate wheel curb climbing torque – x-engineer.org Tutorial on how to calculate the climbing wheel force and torque for pushed and traction wheel, with detailed explanations, hands-on examples and online calculator

05/12/2021

https://x-engineer.org/torque-converter-clutch/

Torque converter clutch: how it works, why we need it and how to diagnose problems

How to calculate (determine) the gear ratio of the final drive (differential) – x-engineer.org 08/11/2021

https://x-engineer.org/automotive-engineering/chassis/longitudinal-dynamics/how-to-calculate-determine-the-gear-ratio-of-the-final-drive-differential/

How to calculate (determine) the gear ratio of the final drive (differential) – x-engineer.org Tutorial on how to calculate (determine) the gear ratio for the final drive (differential) of a vehicle powered by an internal combustion engine or for an electric vehicles with step by step calculation equation and hands-on examples (with online gear ratio calculator)

Discretizing a transfer function from s-domain (continuous) to z-domain (discrete) – x-engineer.org 25/10/2021

https://x-engineer.org/graduate-engineering/signals-systems/control-systems/discretizing-a-transfer-function-from-s-domain-continuous-to-z-domain-discrete/

Discretizing a transfer function from s-domain (continuous) to z-domain (discrete) – x-engineer.org Tutorial on how to convert a continuous (s-domain) transfer function into a discrete (z-domain) transfer function using forward Euler approximation, backward Euler approximation or Tustin/trapezoidal approximation with Xcos block diagram implementation

How a boost DC-DC converter works – x-engineer.org 14/09/2021

https://x-engineer.org/automotive-engineering/vehicle/electric-vehicles/how-a-boost-dc-dc-converter-works/

How a boost DC-DC converter works – x-engineer.org Tutorial on the operating modes of a boost DC-DC converter with explicit description of the governing equations and idealized waveforms

What is a DC-DC converter ? – x-engineer.org 13/07/2021

https://x-engineer.org/automotive-engineering/vehicle/electric-vehicles/what-is-a-dc-dc-converter/

What is a DC-DC converter ? – x-engineer.org Introduction into the working principle of DC-DC converters (buck DC-DC converter, boost DC-DC converter, buck-boost DC-DC converter

What is a low pass filter used for ? – x-engineer.org 08/07/2021

Do you know what a low pass filter is ?

A detailed introduction of a low pass filter with calculation examples and Scilab/Xcos simulations:

https://x-engineer.org/graduate-engineering/signals-systems/signal-processing/what-is-a-low-pass-filter-used-for/

Improve your understanding of low pass filters using the online calculator/simulator:

https://low-pass-filter.x-engineer.org/

What is a low pass filter used for ? – x-engineer.org Low pass filter tutorial with mathematical equations, hand calculated examples and Scilab/Xcos simulations

How to calculate energy 08/01/2021

https://how-to-calculate-energy.com/

Physics tutorials on energy topics. Most interesting articles to come!

How to calculate energy Tutorial on how to calculate different types of energy, with practical examples and on-line calculator

Algebra Cheat Sheet – x-engineer.org 23/11/2020

https://x-engineer.org/undergraduate-engineering/mathematics/algebra/algebra-cheat-sheet/

Algebra Cheat Sheet – x-engineer.org Algebra cheat sheet for Arithmetic Operations, Exponent Properties, Properties of Radicals, Properties of Inequalities, Properties of Absolute Value, Distance Formula, Complex Numbers, Logarithms and Log Properties, Factoring Formulas, Quadratic Formula, Square Root Property, Absolute Value Equation...

Vehicle acceleration and performance online calculator – x-engineer.org 25/09/2020

https://x-engineer.org/projects/vehicle-acceleration-performance-online-calculator/

Online calculator for vehicle performance. Input your vehicle data and visualize results!

See the influence of full load torque, gearbox ratio, vehicle mass, aerodynamic drag on maximum speed and acceleration.

Vehicle acceleration and performance online calculator – x-engineer.org Online vehicle acceleration and performance calculator (simulator) with flexible parameters input

How to calculate wheel and vehicle speed from engine speed – x-engineer.org 18/09/2020

https://x-engineer.org/automotive-engineering/chassis/vehicle-dynamics/calculate-wheel-vehicle-speed-engine-speed/

How to calculate wheel and vehicle speed from engine speed – x-engineer.org Tutorial on how to calculate vehicle speed function of the engine (motor) speed and the engaged gear (on-line calculator)

03/09/2020

https://x-engineer.org/projects/modeling-simulation-automotive-suspension/

Modeling and simulation of an automotive suspension

01/06/2020

Modeling and simulation of a vehicle with automatic transmission

https://x-engineer.org/projects/modeling-simulation-vehicle-automatic-transmission/

Quarter car suspension model transfer function – x-engineer.org 01/05/2020

https://x-engineer.org/graduate-engineering/signals-systems/control-systems/quarter-car-suspension-model-transfer-function/

Quarter car suspension model transfer function – x-engineer.org How to find the transfer function of a quarter-car suspension model with Scilab and Xcos modelling and simulation

Mathematical models and simulation of electrical systems – x-engineer.org 18/04/2020

https://x-engineer.org/graduate-engineering/modeling-simulation/systems-modeling/mathematical-models-and-simulation-of-electrical-systems/

Mathematical models and simulation of electrical systems – x-engineer.org Mathematical modeling with differential equations, transfer functions and state-space models and simulation in Scilab and Xcos of various electric circuits: RL, RC, RLC

Videos (show all)

Active vs. Reactive Power