Review of Motors used in Hybrid Electric Vehicle
Ujjwal Singh
Department of Electrical Engineering
University of Texas at Dallas
800 W Campbell Rd, Richardson, Dallas (TX), 75080, USA uxs151330@utdallas.edu Abstract- This paper deals with the different motors used in the hybrid electric vehicles. The performance like the efficiency of induction motor, internal permanent magnet motor and switched reluctance motor is studied. In recent years permanent motors are often used for driving HEV. This paper compares the characteristics of Permanent Magnet (PM) motor with Switched Reluctance Motor (SRM) and Induction Motor (IM) and gives us prospects for future development of HEV using these motors.
Keywords- Hybrid electric vehicle, permanent
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They also use regenerative braking that converts kinetic energy of the vehicle into electrical energy that charges the battery rather than wasting that energy in form of heat energy as conventional brakes does. The HEVs produces comparatively very less emissions from its ICE than a gasoline car. Many HEVs reduces emission by turning off the ICE at idle situation and then restarting when needed.
This paper compares the characteristics and performance of IM, SRM and interior permanent magnet drive motor (IPM). HEVs were not widely available until the launch of Toyota Prius in 1997 in Japan, which was followed by Honda Insight in the year 1999. The data related to design for IPM is taken from the report on Toyota Prius HEV 2004 [1] and the comparison done with IM uses same design of the stator. Mostly it is said that PM motor are the best match for the HEVs in terms of performance and efficiency. This is despite that induction motors and SRM have been used in cars like Tesla and General Motors. Also the SRM and IM have an advantage over PM motor in terms of manufacturing cost and durability. SRM is the perfect magnet free alternative as suggested in [2] and offers zero field coasting and controllable flux. Hence, the IM and SRM offer more flexibility of controlling flux.¬¬
The paper also reviews some machine considerations like a SPEED model [3] using PC-BDC and PC-FEA for the Toyota Prius 2004 motor model and is also validated using the data in [1]. The
The author first explains what a hybrid is, stating “A hybrid is a cross between two established varieties of plant, animal… or technology.” She introduces the hybrid vehicle, a new form of technology that stands as a possible answer for a vehicle that is both energy preserving and safer for the environment. Before she dives into details of how the vehicle works, she enlightens the reader on what the article is about and the objective of the hybrid vehicle. Students enrolling in an engineering course in a post-secondary institution will be more
Abstract—In this modern era, many advancements in technology have been witnessed. Research and data collected around the world have allowed for these advancements to take place. This has allowed for a better understanding of the footprint humans leave on the environment. As a result, this has allowed for the planet to become eco-friendlier. An eco-friendly advancement in the 21st century is the electric vehicle. There are a plethora of benefits using electric vehicles. Some advantages include no emissions, cost-effective, and low maintenance.
A hybrid electric vehicle (HEV) is a type of hybrid vehicle and electric vehicle which combines a conventional internal combustion engine(ICE) propulsion system with an electric propulsion system (hybrid vehicle drivetrain). The presence
II. Most hybrids only use gasoline when needed. The electric motor, powered by a stack of rechargeable batteries, is the primary workhorse for propulsion under low-speed driving.
Electrical vehicles technology has been present for a while and is a proven technology that need only reshaping to meet the global need. Though, in the past, the technology had failed to compete with the internal combustion engine due to initial cost, the technology has done well in the past few years. Electric vehicle ability to reduce the emission of greenhouse gases like carbon and carbon dioxide and the advantages it enjoys such as low maintenance and running cost can enhance it market competitiveness. However, as experts try to make its charging system more efficient and its ability to store charge more long lasting, the global need continue to rise. The research proposal, therefore, aim at addressing an issue like government involvement can enhance improved use of EV, development of better EV batteries, energy management system and fast charging can help enhance the use of Electrical Vehicles and how electric vehicle drive train and the battery can be redesigned to make it affordable.
Electric cars are becoming very popular in today’s world and are becoming more main stream. One reason for this is the need for automobiles that have a lower or a zero carbon footprint. For the majority of the history of the automobile, the propulsion system was a gas or a diesel engine that would run off of fossil fuels. The burning of fossil fuels is very hazardous to our world and also creates much toxic pollution. However, electric cars run off of electricity, which is a very clean and pollution free resource, depending on how the electricity was produced of course. In this paper we are going to examine the history of electric cars, look into modern electric car technology, and peer into the future of electric car technology to see if EVs might be the answer to dramatically reducing our global pollution.
Both series and parallel hybrid electric vehicles primarily contain the same parts, however, they are configured differently. Both types of hybrid electric vehicle contain a gasoline-based engine, a battery which is rechargeable, an inverter, transmission and an electric motor. The main difference between the two, disregarding the difference in sizes of the separate parts, is that series hybrid electric vehicles have a generator whereas in a parallel hybrid electric vehicle the motor acts as a generator. Moreover, in a parallel HEV, the engine is directly connected to the wheels, however this is not the case in a series HEV.
The growing dependence of many countries, especially the USA and Europe on the imported oil and the daily increase of oil price and the heightened concern on the global warming and the environmental pollutions which has forced many car manufacturing companies to study the new and innovative techniques in solving this very important issue.
Technology has been advancing since the turn of the century at an unparalleled pace with the constant announcement of new gadgets and innovations. Of the thousands of new technological advancements made in the past decade, the introduction of the electric car has been the most widely discussed topic. Electric cars are one hundred percent emission free and can replace the fire spitting, bone chilling sounds of a thunderous gasoline engine with the eloquent silence of luxury and speed. However, as with all things technological, electric vehicles have their problems. Electric cars have several benefits and could possibly replace gas cars in the future, but they are not refined enough to take over the world today because of a few technicalities
The main component of a car would be the power that actually puts the car in motion. To be solely dependent on one power source is not a very good idea as it is not eco-friendly and at the same time not suitable. By 2040, half of all the new cars being sold will be hybrids, according to Exxon Mobile. Hybrid Cars are the cars that uses more than one power sources to run the car. It is usually referred to the Hybrid Electric Vehicles (HEVs) which has both the internal combustion engine and electric motors that generates power. One of the main problem with these hybrid cars is that their batteries are extremely heavy and takes up a large amount of space in the car. The concept of Hybrid cars can be a good thing to the environment, but definitely not for the car manufacturer or the customer. Hybrid cars have a convincing amount of weight due to their batteries, even with the existence of lithium-ion batteries. As a solution, Energy Storing Body Panels are used.
Climate change occurs mainly because of human activities, such as harvesting resources, industrialization, and technological invention, among other factors. One of the main reasons climate change has occurred in the last a few decades is because conventional cars which made their first appearance in 1886, have become increasingly popular. Although, conventional cars are more efficient and less expensive than hybrid cars, hybrid cars help reduce the negative impact on the environment more than conventional cars. A Hybrid car has disadvantages due to the battery and power of the engine, which has to improve over time, which makes people less likely to buy hybrid cars over conventional cars in the present such as gas and diesel. Even though both conventional and electric cars have negative impact on the environment, they have different scale of impact on the environment. By looking at how each system of both types of cars work, what the effect on fuel consumption rate and greenhouse gas emissions are, and what the disadvantages of electric cars are compared to conventional cars, hybrid electric cars are less likely to negatively impact on the environment more than conventional cars.
Electric motor - The electric motor on a hybrid car is very sophisticated. Advanced electronics allow it to act as a motor as well as a generator. For example, when it needs to, it can draw energy from the batteries to accelerate the car. But acting as a generator, it can slow the car down and return energy to the batteries.
The purpose for this research report is so that students can familiarize themselves with hybrid electric vehicles and their features that make them unique in contrast to other vehicles. This report will educate the reader on the “BMW i8’s” vital components such as the engine, battery, and other elements related to electric vehicles. To put into perspective the significant advantage hybrid electric vehicles have over vehicles
The analysis of the performance of the car under test was completed using AVL Cruise software. Various Graphs are obtained so that the actual performance of the car can be determined. Graph 1 (Abundance) prominently shows the torque of the engine at the respective engine speed along with the specific fuel consumption at that speed. Approximately 230Nm is the maximum torque that can be obtained at 4200 rpm, trailed by decrease in torque for the remaining speed. A cycle run was conducted for three different periods of cycle in which the vehicle was accelerated then hold and decelerated for certain time depending upon the requirement of cycle. Graph 2-A shows the change in velocity upon change in acceleration for three different cycle times. Also the shift of gears during the period can be observed. Graph 2-B illustrates consumption of the fuel during the three different stages. It can be noted that when the velocity was about 50 km/h the fuel consumption was about 5.0 l/h. Also it significantly notifies that during idling the fuel consumption is 1.6 l/h. In this Graph it can be inferred that the maximum operating pressure is 12 Bar for a speed of 4200rpm. Maximum fuel is consumed during the start of the engine at 0.5 bar, fuel consumption gradually decreases with increase in engine speed. Graph 3 speaks about the maximum operating pressure is 12 Bar for a speed of 4200rpm. Maximum fuel is consumed during the start of the engine at 0.5 bar and also between 0 bar and 1.6 bar at
In this research, we will first take a general look and introduction into both the low pressure force induction technology and the hybrid technology further then compare and contrast the pros and cons in detail. With both concept understood, we will begin to focus on the trend of hybrid vehicles here in Malaysia, finding out the factors that support or deter the acceptance of hybrid vehicle through questionnaire aimed at hybrid owners and potential hybrid owners, from then we can know what are the main factors and concern of buyer upon making a decision for a hybrid vehicle, and then conclude what can be done to further