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Semi-autonomous parking assist system (SA-PAS)

Hella India Automotive Private Limited-Ankit Dilip Yawale
  • Technical Paper
  • 2019-28-2529
To be published on 2019-11-21 by SAE International in United States
This paper describes the Semi-autonomous parking assist system (SA-PAS) developed using combination of high accuracy position sensing and electronic power steering. A real-time system that helps driver to identify the parking space and assist to perform maneuvers. Parking is often a difficult task, especially for inexperienced drivers. Starting with the problem of having to find a suitable parking spot, to then maneuvering in to it without colliding with anything or anyone, while trying avoiding disturbing the surrounding traffic. The numbers of vehicles are rapidly increasing as compared to the expansions of roads and parking spaces. Therefore, effective use of the existing spaces is needed (by making them narrower), which can cause inconvenience to many drivers. Semi-autonomous parking assist system searches for suitable space and steers the vehicle into it, while driver has to control the gear shifter, accelerator and brakes. If the driver presses the button to activate the park assist, a special sensor integrated into the side of the front bumper scans the side of the road as the vehicle drives past. The park…
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Characterization of ultrasonic transducer for automotive proximity sensing application.

Tushar Mansingrao Desai
  • Technical Paper
  • 2019-28-2451
To be published on 2019-11-21 by SAE International in United States
The automotive industry has seen the rise in safety norms and regulation in recent years. Achieving optimum performance and reducing cost while designing the overall system is biggest challenge. AIS -145 is one of the popular norm which will become mandatory after 2020. AIS -145 is park assistance system based upon the proximity sensing application. This paper deals with characterization of ultrasonic transducers for automotive proximity-based sense application. Characterization of ultrasonic transducer is important to achieve optimum performance and functionality of overall system. The objectives of this work is to characterize the ultrasonic transducer for different vehicle environment and sensor parameters. The vehicle environment such as chassis, bumper and sensor mounting location and sensor parameters such as transducer gain, transducer operating frequency, transducer driver threshold has significant effect on the proximity sensor -ultrasonic transducer sensitivity performance. To realize this, there is need of practical approach and optimization of ultrasonic transducer parameters. This research in turn will help to reduce development time of proximity sensors for different vehicle environment, increase in reliability which adds intelligent system…
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An IMPC based Parking Assistance System with Interactive Searching Function

FinitronX-Qianyu Ouyang, Xianzhe Jia
  • Technical Paper
  • 2019-01-2614
To be published on 2019-10-22 by SAE International in United States
This paper summarizes progress and outcome from our research projects on IMPC-based parking management system, including parking motion planning and control strategy, as well as a searching strategy for parking spot. To predict future parking parameters, we proposed a practical framework which integrates anticipatory techniques with a model predictive approach that robustly models the stochastic parking environment. The framework is able to take into account the interactions between vehicle subsystems, and can optimize trajectory under complex traffic patterns in real-world scenarios. Adaptive model predictive control is utilized to optimally minimize a cost function regarding performance, energy efficiency and drivability with regard to surrounding vehicle states. Dynamic programming was used to solve the control objective under multiple constraints, which yielded superior performance in comparison with convex programming. An original navigation system was developed for leading user to the parking spot in case of forgetting exact location, which is characterized in that swift location and path are generated by BLE-based sensor fusion. After successful parking action, the system beacons the parking location and transmits data to mobile…
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The Sense-itive Side of Autonomous Vehicles

Autonomous Vehicle Engineering: July 2019

Kami Buchholz
  • Magazine Article
  • 19AVEP07_07
Published 2019-07-01 by SAE International in United States

BASF is exploring how specific materials-and even paint colors and finishes-can improve the capabilities of AV sensors.

The sensing technologies needed for automated-driving vehicles are evolving as the industry moves toward high-level (SAE Level 4-5) automation. Sophisticated sensors already enable advanced driver-assistance systems (ADAS) features such as adaptive cruise control, park assist, lane-centering and others.

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Student Concept Vehicle: Development and Usability of an Innovative Holographic User Interface Concept and a Novel Parking Assistance System Concept

BMW Group-Joerg Schulte, Julian Weber
Clemson University-Lauren Mims, Johnell Brooks, Breno Schwambach, Robert Knizek, Casey Jenkins, Mitchell Beckman
Published 2019-04-02 by SAE International in United States
The Deep Orange program is a concept vehicle development program focused on providing hands-on experience in design, engineering, prototyping and production planning as part of students’ two-year MS graduate education. Throughout this project, the team was challenged to create innovative concepts during the ideation phase as part of building the running vehicle. This paper describes the usability studies performed on two of the vehicle concepts that require driver interaction.One concept is a human machine interface (HMI) that uses a holographic companion that can act as a concierge for all functions of the vehicle. After creating a prototype using existing technologies and developing a user interface controlled by hand gestures, a usability study was completed with older adults. The results suggest the input method was not intuitive. Participants demonstrated better performance with tasks using discrete hand motions in comparison to those that required continuous motions. The data were helpful to understand the challenges of untrained users interacting with a new HMI system.The second concept is a parking assist system designed to help other drivers. A usability…
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Automotive Engineering: February 2019

  • Magazine Article
  • 19AUTP02_09
Published 2019-02-01 by SAE International in United States

As this month's cover story makes clear, the 2019 Audi e-tron is not an electric screamer. It doesn't redefine ludicrous 0-60-mph acceleration times every time you step on the accelerator. In fact, if you're used to a high-performance Tesla Model X, the e-tron feels decidedly neutered.

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3D Auditory Displays for Parking Assistance Systems

SAE International Journal of Passenger Cars - Electronic and Electrical Systems

Luleå University of Technology-André Lundkvist, Roger Johnsson, Arne Nykänen, Jakob Stridfelt
  • Journal Article
  • 2017-01-9627
Published 2017-04-11 by SAE International in United States
The objective of this study was to investigate if 3D auditory displays could be used to enhance parking assistance systems (PAS). Objective measurements and estimations of workload were used to assess the benefits of different 3D auditory displays. In today’s cars, PAS normally use a visual display together with simple sound signals to inform drivers of obstacles in close proximity. These systems rely heavily on the visual display, as the sound does not provide information about obstacles' location. This may cause the driver to lose focus on the surroundings and reduce situational awareness. Two user studies (during summer and winter) were conducted to compare three different systems. The baseline system corresponded to a system normally found in today’s cars. The other systems were designed with a 3D auditory display, conveying information of where obstacles were located through sound. A visual display was also available. Both normal parking and parallel parking was conducted. Time taken for parking and the number of obstacles/curb hits were recorded. Participants answered a NASA TLX questionnaire after evaluating each PAS for…
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Chicago Auto Show: All-new 2018 Ford Expedition gets aluminum body, 10-speed

Automotive Engineering: March 2017

Lindsay Brooke
  • Magazine Article
  • 17AUTP03_09
Published 2017-03-01 by SAE International in United States

When Ford Motor Co. leadership made the bold decision to invest in aluminum body structures for its F-Series pickups, they made sure the Expedition was integrated into the product plan. The resulting 2018 Expedition, unveiled February 7 in Dallas, shows the fruits of that wisdom.

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Six Questions About Today's Camera Market

  • Magazine Article
  • TBMG-26473
Published 2017-03-01 by Tech Briefs Media Group in United States

Although camera components like CCD and infrared sensors have reached a level of maturity, imaging features continue to evolve. Analysts from the San Francisco, CA-based business consulting firm Grand View Research spoke with P&IT about current camera technology's most exciting capabilities, applications, and leaders.

AUTONOMOUS DRIVING MEETS REGULATION: Hands off, eyes off, brain off

Automotive Engineering: May 5, 2016

Stuart Birch
  • Magazine Feature Article
  • 16AUTP05_03
Published 2016-05-01 by SAE International in United States

Euro NCAP'S president warns that without coherent policies, the growing availability of automated technologies may result in piecemeal technology development-and unintentional consequences.

Auto industry legend Lee Iacocca once famously said, “Safety doesn't sell.” Later, he was big enough to modify his stance and candidly admitted in an advertisement extolling the benefits of airbags, “Who says you can't teach an old dog new tricks?”