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How do Digital Motor Works: Features and Benefits Digital Motors

Digital motor is what’s familiar as a switched reluctance motor. Instead of powering the rotor, a switched reluctance motor has a magnetic core — so as power is switched along with the stator’s coils, the magnetic core is dragged around to line up with the magnetic field they generate.

Published

2 years ago

January 31, 2022

TwinzTech

Digital motor is what’s familiar as a switched reluctance motor. Instead of powering the rotor, a switched reluctance motor has a magnetic core — so as power is switched along with the stator’s coils, the magnetic core is dragged around to line up with the magnetic field they generate.

With more coils than magnetic poles on the rotor, it’s likely to set up a switching pattern in the coils that pulls the rotor around. That implies utilizing sensors and complex switching circuitry, as controlling the motor’s magnetic fields is the key to efficient driving.

Switched reluctance motors like this can be exceptionally efficient, and Dyson claims that their motor is 84% efficient (compared to 40% for a traditional electric motor). There’s a lot to be said for a compact, high-power motor like this — not just for vacuum cleaners and hand driers. It also implied using many design tools — a lot of it using Dyson’s simulation software.

Table of Contents

1. How Do Digital Motors Works?

While Digital motor is permanent magnets brush-less motor, I trust Dyson had to attend to a few challenges that, in my view, led to a “digital” description. It rotates at 125000 RPM speed which is 42 times more than two poles electric motor (swimming pool pump, for example) with only 3000 RPM. That creates enormous G-forces, and Dyson solution for that (among other things) is:

Ceramic shaft instead of steel – it is lighter, more robust. Therefore, the diameter can be smaller because, at 125k rpm, you try to design a motor that is the littlest diameter possible and longer. Ratio Motor Lenght/Motor Diameter is much higher than ordinary motors.

Dyson developed a unique neodymium cylindrical magnets manufacturing process that is part of the rotor. It is a long and small diameter cylinder rather than 2 (2 poles) or 4 (4 poles) independent magnets. Once again, a long cylinder can rotate at 125000 RPM (V10) while separate poles would lead to mechanical collapse and tremendous vibrations.

Features and Benefits Digital Motors

So when you look at the Dyson rotor, it seems like a cylinder, and you can not physically see the magnetic poles. They appear to be engraved into the cylinder structure. The shape of high-quality aluminum (low weight) air turbine is likewise crucial. Once again, small diameter.

Just so it is clear. The rotating assembly energy is E=m*omega (E is energy, m is weight, and omega is the speed in rad/s). Based on that motor turning at 125000, RPM can have 42 times less weight to achieve similar inertia energy.

Stator: Presently we should discuss stator now. The ordinary permanent brushless motor has a stator winding that, if connected to a 240VAC supply, creates a rotary magnetic field that leads to 3000RPM for 50Hz and a two-pole motor.

Dyson has, in my view, attended to something that until very recently was almost impossible. Rather than the typical stator winding, I believe they are utilizing coils, and let’s call them “digital coils.” Not sure how many, but if a rotor cylinder has four poles, I would expect (not sure) a minimum of 8 “digital coils.”

Dyson people would realize that Dyson is observing air pressure (altitude) and temperature. A few people think this is added merely as a “cool feature” like APPLE often does with their products.

This is where Dyson has done something extraordinary, “digitally cool,” to address difficulties.

2. The Value of Digital Motor Speed Control

Digital motor speed manages (‘digital controls’) are, for this discussion, microprocessor-based, user-configurable speed controls for DC permanent magnet (DCPM) motors or digital speed potentiometers for use with AC VFD’s.

They developed The digital concept in the mid-’80s to solve a customer’s requirement for accurate, repeatable speed control of a pizza oven chain conveyor. These products have set over the years into powerful, intelligent platforms for controlling and watching one or more motors’ speeds in a vast difference of applications.

Digital speed control is a motor speed control for an AC or DC motor that incorporates an integrated, programmable display of set or reference speed in engineering units, percent output, time-in-process, and percent of Master reference. The control might be an open or closed loop, where a closed loop requires incremental pulse encoder feedback.

EV Engine Digital Electric Motor

A digital speed potentiometer is a motor speed control accessory that, when added to a traditional motor speed control (SCR, PWM, Regen, BLDC), will give that speed control the characteristics and capability of an integrated digital speed control characterized previously.

3. Digital Motor Protection Relay (Split Module): CSMPM

Range:

Wiring: Screw type (S)/Tunnel (T)
Panel mount: Unit or Extension
Operation time: Select either reverse time characteristics or definite time

Features:

Digital Relay with built-in MCU (Micro Processor Control Unit)
Multiple protection: Overload / Phase failure/Stall /Asymmetry/ Phase reverse Earth Fault
Current setting 0.5-6A&5-60A
The current setting 0.5-6A can be used up to 600A with external.
Fault diagnostic seven-segment display of fault & values

Benefits:

Digital Ammeter function
Time setting: Inverse time (O-60 sec), Definite time (O~60 sec) starting, and Delay time operating time
Accuracy : Current/Timei5% of setting
Fail-safe operation
Alert function(60-110% of set current)
inverse/ Definite time characteristics, site selectable
C.T. ratio setting in CSMPM~06 frame 0nly.

4. Brushless Solution

An electronic servo structure restores the mechanical commutator contacts in brushless DC motors. An electronic sensor exposes the angle of the rotor. It controls semiconductor switches such as transistors that switch current through the windings, either reversing the current direction or, in some motors, turning it off at the correct angle.

Hence, the electromagnets create torque in one order. The elimination of the sliding contact permits brushless motors to have more negligible friction and longer life; their working life is restricted by their bearings’ lifetime.

An Electronic Controller

Brushed DC motors develop the highest torque when stationary linearly reduces as velocity increases. Brushless motors can overcome some brushed motors; they include higher efficiency and lower susceptibility to mechanical wear.

These advantages come at the cost of potentially less rugged, more complex, and additional expensive control electronics. A typical brushless motor has lasting magnets around a fixed armature to remove problems associated with connecting current to the moving armature.

5. An Electronic Controller (Electric Motor)

An electronic controller restores the brush/commutator assembly of the brushed DC motor, which continually switches the phase to the windings to keep the motor turning. The controller performs similar timed power distribution using a solid-state circuit rather than the brush/commutator system.

Brushless motors offer a few advantages over brushed DC motors, including high torque to weight ratio, more torque per watt (increased efficiency), increased reliability, lessened noise, longer lifetime (no brush and commutator erosion), elimination of ionizing sparks from the commutator, and an overall trimming of electromagnetic interference (EMI).

Among no windings on the rotor, they are not subjected to centrifugal forces. Because the housing supports the windings, they can be cooled by conduction need no airflow inside the motor for cooling. This, in turn, means that the motor’s inner can be completely enclosed and protected from dirt or other foreign matter.

Automotive

How has car rental management software revolutionized the industry?

Car rental management software allows for minimizing risks and preventing financial losses through certain features, such as maintaining a database of client drivers, managing fines, tracking instances of dangerous driving, and preventing unauthorized access to the vehicle.

Published

12 months ago

June 2, 2023

TwinzTech

In recent years, the car rental business has been rapidly developing in many countries around the world. This service is particularly in demand in large cities, where residents increasingly prefer various car rental options over purchasing their own vehicles.

Clients of car rental services enjoy several significant advantages: renting a car is cheaper than regularly using taxi services, and much more convenient than relying on public transportation. Additionally, users are not required to spend a huge amount of money on buying a personal car, taking care of registration and insurance, regularly refueling and repairing the vehicle, or purchasing parking spaces. These responsibilities are taken care of by the rental company.

The development of the car rental business is also influenced by broader factors. Firstly, there has been an increase in the number of tourist and business trips in recent years. Secondly, consumers increasingly value mobility and flexibility, which contributes to the growing demand for rental cars. Thirdly, many countries worldwide are paying significant attention to ecology, and shared transportation partially helps reduce carbon footprints and utilize resources more efficiently.

However, perhaps the key factor is the rapid advancement of internet technologies and online platforms. It is not just about improving the user experience but also the emergence of digital solutions for businesses. For example, the implementation of specialized car rental management software has revolutionized the industry.

Many companies have been able to simplify and automate their workflows, save significant resources, optimize budgets, and take their businesses to a new level.

Table of Contents

1. Understanding car rental management software

Car rental software is a software system specifically designed for efficient management, control, and business development in the car rental industry.

The functioning principle of a car rental system may vary depending on its type, set of features, client preferences, and other factors. Among car rental software options, the following are distinguished:

Personalized and package systems. The owner of a car rental business can order the development of a custom software solution from scratch. Such software takes into account all the specific needs of the company and the client’s preferences. Typically, the development of a personalized system takes more time and is more expensive, but in such cases, the efficiency of using the software will be maximized. A more cost-effective option would be to acquire a package solution, which includes a fixed set of functions necessary for managing the car rental business.

Specialized and universal software. There are many universal systems available on the market for business management. Typically, such software has a basic set of functions, for example, it can be used for financial operations, organizing and storing important information, and interacting with clients. However, specialized software provides an advantage to owners of car rental companies because these programs are developed with the specific characteristics of this business in mind.

Boxed and cloud solutions. Depending on the method of data storage, there are cloud-based and downloadable systems. Standalone or so-called “boxed” solutions involve purchasing a license to use the program, which is installed directly on the personal computers of the car rental company’s employees. Cloud solutions are often more convenient: when using them, the client gains access to an online service from any PC or mobile application. Moreover, cloud solutions are quite flexible, as adding additional features to the software is much easier.

Each type of software has a set of advantages that can be utilized by the owner of a car rental business, regardless of the type, class, and model of the rented cars. Some of these advantages include business process optimization, fleet management, increased profitability of the enterprise, and improved efficiency of each employee, and the company as a whole.

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2. Key features of car rental management software

Often, the set of functions in a specific car rental management software depends on several factors: the developer’s experience and expertise, client requirements, and the company’s pricing policy. However, in most cases, such software possesses similar characteristics that consider the specifics of the car rental business.

Thus, the most commonly used functions of a car rental system are as follows:

With the help of specialized software, you can automate many business processes and routine tasks that used to require a lot of effort and time. Car rental reservations through the company’s website or mobile application, setting up notifications and mailings, and generating invoices – all these operations can be automated, which will significantly increase the efficiency of employees’ work.

Fleet management. One of the main advantages of specialized car rental software over generic software solutions is that it takes into account the specifics of the car rental business. With such a system, you can effectively manage your fleet, store the order history of each vehicle for further optimization, track the location of vehicles, their technical condition, and fuel level, and schedule maintenance work.

Information storage. Cloud solutions are convenient because they give you the opportunity to store important information regarding the company’s activities in one place. You can allocate secure access levels among company employees. This way, you can create and expand a database of clients and contractors, store contracts and financial documentation, and systematize reports based on various parameters.

Payments and other financial operations. The car rental system is designed in such a way as to increase the speed and efficiency of payment processing, which helps improve the quality of customer service. Thus, the software allows for automating invoice generation, contractor payment, refund of insurance deposits to users, and other financial operations, including the use of templates.

Risk management is a particularly important advantage for a car rental business owner. Car rental management software allows for minimizing risks and preventing financial losses through certain features, such as maintaining a database of client drivers, managing fines, tracking instances of dangerous driving, and preventing unauthorized access to the vehicle.

Marketing activities. You also have the opportunity to integrate the enterprise’s marketing strategy into specialized software, plan advertising campaigns, manage rates, launch seasonal promotions, analyze key marketing indicators, and create detailed reports on the effectiveness of promotional methods.

Statistics and reporting. You can analyze not only marketing indicators but also many others. Developers are incorporating more and more parameters into their software solutions, allowing you to keep statistics, create detailed reports, and plan company activities based on market conditions and the specific characteristics of your business.

3. Choosing the right car rental management software

The number of companies offering car rental software development services is growing every year. Therefore, it is crucial to choose a reliable contractor for effective collaboration.

When selecting a partner, attention should be paid to the following factors:

Price policy. Examine the offers of several companies to compare them based on the price-to-quality ratio. If you are limited in budget, pay attention to the cost and functionality of developer package deals. However, if you intend to order the development of a customized system according to your requirements, take into account that such a service will be more expensive.

User-friendliness. It is crucial for the car rental system to have a convenient, intuitive, and multifunctional interface. This will help company employees undergo training more quickly and make the most of the software’s advantages.

Feature set. Pay attention to the functions provided in the standard developer packages. For the owner of a car rental business, it is particularly important that the software allows for automating reservations, processing payments, conducting other financial operations, and tracking the status and location of vehicles. If you have a need for additional specific functions, inquire about the possibility of integrating them into the software.

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Company reputation. It is equally important how many years the company has been operating in the market, as it is a good indicator of the contractor’s experience and expertise in the field of specialized software development. Look for information about the company, customer reviews, and examples of already implemented projects for car rental management software integration.

Scalability. Find out in advance how flexible the terms of cooperation are offered by the development company. It is in your best interest to not only obtain a quality software solution but also have the ability to make changes to it and add new features considering the development and further scaling of your business.

Technical support. Another important factor to consider when choosing a contractor is the quality of technical support. It should be provided not only during the implementation of the software and training of personnel but also include regular software updates, prompt resolution of technical issues, and readiness to answer additional customer questions.

By considering these factors when choosing a contractor, you will be able to find an experienced and reliable partner for productive and long-term cooperation.

4. Benefits and payback of software

Have you already confirmed that specialized software has extensive functionality and can help optimize the operations of the car rental business? Here are the 5 main advantages that a car rental company can gain by implementing such a software solution:

Improved efficiency.

The implementation of a car rental system simplifies many routine tasks through process automation. As a result, employees of the company have more free time to dedicate to more important tasks, the speed of operations increases, the work of all company departments is synchronized, and the efficiency of activities significantly improves.

Cost reduction.

Automating reservations and other operations allows for significant cost reduction and budget optimization for the company. This, in turn, leads to a quick return on investment in the software and enables an increase in net profit from the business activities. Thus, you have more opportunities to invest in the further development of the car rental company.

Service quality improvement.

Increased speed in processing requests, convenient online payment system configuration, database management, integration of marketing activities, and the ability to manage tariffs — all these advantages contribute to improving the quality of customer service. As a result, you increase customer loyalty and attract more new users.

Fleet management.

Car rental management software allows for minimizing risks and unforeseen expenses through fleet control. You can track the location of each vehicle using GPS trackers, manage fines, create a database of drivers, keep records of instances of dangerous driving, add a feature for documenting damages, and adhere to the schedule of vehicle maintenance.

Analysis and planning.

In specialized software, you can view statistics, analyze data, and generate reports on various indicators. This helps forecast market changes, adjust business strategy, and incorporate the acquired data into the company’s marketing plan. As a result, you have more opportunities for dynamic development and scaling of the car rental business.

Conclusion

The implementation of car rental software is becoming increasingly important for companies operating in this industry. Such software allows for the automation and simplification of reservation processes, payment processing, and fleet management, thereby enhancing the efficiency of each employee’s work and the overall enterprise.