Name: control systems in cars and furnaces
Uploaded: 2024-09-26T13:17:14.000Z
Duration: 1 min 25 s
Channel: JoVE

Everyday applications of electrical engineering, driven by control systems, are prevalent in cars, electric furnaces, and space shuttles.
In a car&#39;s control system, the steering wheel&#39;s direction and accelerator pressure act as inputs. These influence the outputs, which are the vehicle&#39;s speed and heading.
This example represents a multivariable system with multiple independent inputs and outputs. Yet, in some systems, these controls can be interconnected.
The temperature control system of an electric furnace serves as another example. Here, the furnace&#39;s temperature is measured by a thermometer, an analog device.
The analog reading is digitized, compared to the preset temperature. If a discrepancy is found, the controller adjusts the furnace temperature accordingly.
For space shuttles, control systems receive inputs like position and velocity. These are processed to adjust the orbit and ensure precise vehicle functions.
Internally, these systems take parameters like temperature and pressure as inputs. The data is processed to output commands managing the fuel-cell power plant&#39;s operation and maintaining a stable environment within the shuttle.

control systems: applications

Control Systems: Applications

Electrical engineering plays a pivotal role in our daily lives, with control systems at the heart of many applications, from home appliances to sophisticated space shuttles. Control systems manage and regulate the behavior of devices and processes, ensuring they function safely, correctly, and efficiently.
In modern vehicles, control systems manage various functions to enhance performance and safety. The steering wheel and accelerator are primary inputs in a car&#39;s control system. The direction of the steering wheel and the pressure on the accelerator pedal are processed to control the vehicle&#39;s speed and heading. This setup exemplifies a multivariable system, where multiple independent inputs (steering and acceleration) influence multiple outputs (speed and direction). In some advanced systems, these inputs are interconnected to provide smoother and more responsive control, enhancing the driving experience and safety.
Electric furnaces utilize control systems to maintain desired temperature levels. A thermometer, an analog device, measures the furnace&#39;s temperature. This analog reading is then converted into a digital signal, which is compared to a preset temperature. If there is a discrepancy between the actual and desired temperatures, the control system generates a command to adjust the furnace&#39;s output, ensuring the temperature remains within the desired range.
Control systems in space shuttles are among the most complex and critical, ensuring precise operations in a challenging environment. These systems receive inputs such as the shuttle&#39;s position, velocity, and external disturbances like wind. The control system processes these inputs to adjust the shuttle&#39;s trajectory and maintain its orbit. Internally, parameters like temperature and pressure are constantly monitored. The data is processed to manage the shuttle&#39;s fuel-cell power plant and maintain a stable internal environment.
In conclusion, control systems are integral to various aspects of modern technology, enhancing efficiency, safety, and functionality across various applications. From the simplicity of home appliances to the complexity of space missions, these systems exemplify the ingenuity and importance of electrical engineering in our everyday lives.

Everyday applications of electrical engineering, driven by control systems, are prevalent in cars, electric furnaces, and space shuttles.
In a car&#39;s ...

Education

JoVE Core

Electrical Engineering

Unit 1

Introduction to Control Systems

KEY TERMS AND CONCEPTS

control systems in cars and furnaces

Control systems are used in cars, electric furnaces, and space shuttles to manage devices and processes. They help equipment work safely, correctly, and efficiently. Electrical engineering plays a central role in making these systems work in daily life.

In modern vehicles, control systems help manage performance and safety. The steering wheel and accelerator are key inputs in the car control system. The steering direction and pedal pressure are processed to control the vehicle’s speed and heading. This is a multivariable system, which means multiple independent inputs affect multiple outputs. In some advanced systems, these inputs are linked to give smoother and more responsive control.

Electric furnaces also use control systems to hold a set temperature. A thermometer, which is an analog device, measures the furnace temperature. That analog reading is converted into a digital signal and compared with the preset temperature. If the actual temperature does not match the target, the control system sends a command to adjust the furnace output.

Control systems in space shuttles are even more complex and critical. They use inputs such as position, velocity, and outside disturbances like wind to adjust the shuttle’s trajectory and keep it in orbit. Inside the shuttle, temperature and pressure are monitored as well. The system uses this data to manage the fuel-cell power plant and keep the internal environment stable. These examples show how control systems support technology from home appliances to space missions.

Control Systems in Cars and Furnaces

control systems

Feedback in Everyday Control Systems

Control systems use feedback to keep a variable close to a desired value. They appear in both natural and engineered settings. Examples include blood sugar regulation, heart rate changes during stress, elevators, automated vehicles, aerospace systems, and automated manufacturing. A control system is a network of subsystems and processes that turns an input into a desired output. Several parts work together in that network. The controlled variable is the quantity the system tries to regulate.

Control systems are used in cars, electric furnaces, and space shuttles to manage devices and processes. They help equipment work safely, correctly, and efficiently. Electrical engineering plays a central role in making these systems work in daily life. In modern vehicles, control systems help manage performance and safety. The steering wheel and accelerator are key inputs in the car control system. The steering direction and pedal pressure are processed to control the vehicle’s speed and...

open and closed-loop control systems

Feedback in Open and Closed Control Systems

Control systems are key parts of automation and engineering. They are usually grouped into open-loop and closed-loop systems. The difference depends on whether the output is fed back to the controller. An open-loop control system works without feedback from the output. It has two main parts: the controller and the controlled process. The controller receives an input signal and drives the process to reach the desired result. Because it does not check the output, the system does not correct...

effects of feedback

Feedback in Control Systems: Gain and Stability

Feedback in control systems changes gain, stability, and noise response. It does more than reduce error. A basic feedback system uses input, output, error, and feedback signals to shape how the system behaves. One major effect is on gain. Gain is the amount a system amplifies an input. Without feedback, the gain is changed by the factor 1 + GH, where G is the open-loop gain and H is the feedback factor. This means feedback can increase or reduce gain, depending on the frequency range. <br...

feedback control systems

Types of Feedback Control Systems

Feedback control systems can be grouped by how they behave, how their parameters change, and what kind of signals they use. These categories help engineers choose the right control method for a given system. They also make design and analysis easier. Linear feedback systems are theoretical models that simplify control design. In these systems, output is directly proportional to input within a certain range. An amplifier is a good example, but only while the input stays within its allowed range.

key terms and concepts

See how control systems work in cars, electric furnaces, and space shuttles. Learn how inputs, sensors, and feedback help regulate speed, temperature, and orbit.

Control Systems in Cars and Furnaces | JoVE K12

JoVE Core Electrical Engineering offers easy-to-understand animated videos that cover fundamental concepts of electric circuits along with circuit analysis techniques. It incorporates first-order and second-order circuits using operational amplifiers and circuit transformation concepts. The inclusion of practical design examples and real-world applications through scientist-in-action videos adds significant educational value, making complex concepts accessible.

electrical engineering

Control Systems in Cars and Furnaces

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