International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 11 Issue: 03 | Mar 2024
p-ISSN: 2395-0072
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Building ECUs for Electric Power-Assisted Steering Systems Amit hipparagi1, Mangesh A Deshmukh2, Mohmmad sufiyan Rajapatel3 1,3Design Engineer, Tata Technologies Ltd, Pune 2Manager, Tata Technologies Ltd, Pune
---------------------------------------------------------------------***--------------------------------------------------------------------steering). While EPS is forecast to grow dramatically over Abstract - A system of servo control is EPS. This essay
the next few years, EHPS penetration, which is presently estimated at approximately 8%, is expected to stay steady. It is projected that EPS, which presently has a 25% market share, will be standard equipment in every second car sold in the next ten years. In comparison to EPS, the EHPS system has additional parts since it also includes a hydraulic pump, a brushless DC (BLDC) electric motor, and the necessary electronic control unit (ECU). EHPS is preferable to conventional power steering because it can control and improve the hydraulic pump drive's energy efficiency. The pump does not need to build up pressure if little or no steering is required. This cannot be done (or can only be done extremely expensively and laboriously) with a standard power steering system since the pump is driven directly by the combustion engine. An EPS no longer has a hydraulic system. The electric motor directly assists the steering motion.
addresses the basic components of an electric power steering system and offers a valid justification for the development and controller correction techniques, taking into account the controller's major technical index. The respective control technique of the electrically powered steering system is created in line with the performance requirements of the vehicle steering system, and the necessary software and hardware is created to implement this control strategy and regulate each link in the vehicle steering process. Comparative studies are carried out on a vehicle outfitted with the produced EPS and the imported EPS, respectively, to confirm the viability of the control technique. The outcomes demonstrate that the generated EPS performs similarly to the imported EPS. The designed EPS can be employed in light-duty vehicles because it not only performs well but also has acceptable steering performance. Key Words: Electric power steering System, ECU building Fuzzification, fuzzilogic
There are lower costs because the hydraulic system is not there. Nevertheless, the risk is increased in the event of failure since the electric motor directly affects the steering column. This has delayed the implementation of these systems and created a market opportunity for EHPS, which has a lower risk of failure. Nevertheless, this risk has been diminished by redundancy for crucial sub-components (similar to the aircraft industry) and thorough validation testing.
1. INTRODUCTION An increasing number of active control systems, including electric power steering (EPS), active suspension systems (ASS), and anti-lock brake systems (ABS), have been developed in an effort to further improve vehicle performance. Many of these systems have been in use on a commercial basis for almost forty years. An increasing number of individual control systems are being used because no single system can be effective across the whole range of vehicle operating conditions. These systems are made for specific purposes, so interference between them and a complex systematic control is inevitable, which limits and degrades the performance of the vehicle. It is well recognized that the coordinated efforts of multiple vehicle control subsystems are mostly responsible for improving the dynamics of the vehicle. As a result, there is a propensity to integrate the various subsystems in order to ensure and improve the functioning of the vehicle. This has become a research focus in the field of vehicle dynamics control.
2. RELATED WORK 2.1 The Electric Power Steering System e electric power steering (EPS) system greatly improves vehicle handling and stability, which completely transforms the driving experience. By directly applying an electric motor's output to the steering system, EPS lessens the physical effort needed to steer, improving overall control. The EPS system, which consists of the electrical unit and the mechanical structure, is a seamless addition to the contemporary automobile environment. Electronic parts including the steering column, torsion bar, reduction gear mechanism, power steering motor, and gear rack cooperate with mechanical parts like the wheel speed and torque sensors. The complex interaction between mechanical and electronic parts illustrates the high level of engineering that goes into an electric power steering system in a car. The design of this system, as shown in Figure 1, demonstrates the complex interplay between these elements, emphasizing the
The usage of electric power-assisted steering in automobile vehicles has increased significantly. Theoretically, there are two types: electro-hydraulic power steering (EHPS), which utilizes an electric motor to drive a hydraulic pump, and electric power steering (EPS), which uses the electric motor to directly assist the steering action (a pump similar to that used in conventional power
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