Searched for: subject%3A%22Steering%22
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Jansen, S.E.M. (author), Toet, A. (author), Werkhoven, P.J. (author)
This study investigated how human locomotion through an obstacle environment is influenced by visual field limitation. Participants were asked to walk at a comfortable pace to a target location while avoiding multiple vertical objects. During this task, they wore goggles restricting their visual field to small (S: 40° × 25°), medium (M: 80° × 60...
article 2011
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Feenstra, P.J. (author), van der Horst, A.R.A. (author), Grácio, B.J.C. (author), Wentink, M. (author), TNO Defensie en Veiligheid (author)
The goal of the present study was to explore how simulator motion cuing affects the driver's control performance of a car. Steering behavior was used as a measure of control performance. The experimental task was a slalom maneuver in which the velocity of the car was limited to 70 km/h. Subjective and objective variables were measured. The paper...
article 2010
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TNO Defensie en Veiligheid (author), van Diggelen, J. (author), Janssen, J. (author), Mioch, T. (author)
This paper describes an integrated design and implementation framework for cognitive models in complex task environments. We propose a task- and humancentered development methodology for deriving the cognitive models, and present a goal-based framework for implementing them. We illustrate our approach by modelling cognitive lockup as an error...
conference paper 2010
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TNO Defensie en Veiligheid (author), Hogema, J. (author), Wewerinke, P.H. (author)
In the design and development of advanced vehicle control systems such as X-by-Wire (XBW), system safety is a crucial aspect. Failures in XBW can easily result in accidents. Therefore, methods and tools are needed to ensure fault-tolerant systems. Quantifying the consequence of an error is far from trivial, since the consequence is determined...
conference paper 2010
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TNO Defensie en Veiligheid (author), Mioch, T. (author), Osterloh, J.P. (author), Javaux, D. (author)
This paper presents a method that has enabled us to make a selection of error types and error production mechanisms relevant to the HUMAN European project, and discusses the reasons underlying those choices. We claim that this method has the advantage that it is very exhaustive in determining the relevant error types and error production...
conference paper 2010
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Ronden, D. (author), de Baar, M. (author), van den Berg, M. (author), Bongers, W. (author), Chavan, R. (author), Graswinckel, M. (author), Hannink, M. (author), Houkema, M. (author), de Vreede, F. (author), TNO Industrie en Techniek (author)
The design of a remote steering (RS) variant of the electron cyclotron heating (ECH) upper port launcher (UPL) for neo-classical tearing mode (NTM) stabilization in ITER is being finalised. The RS variant is the fall-back option for the reference design, which is a front steering (FS) UPL. This paper presents the changes made in the design of...
article 2009
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TNO Defensie en Veiligheid (author), Janssen, J.P.B. (author), Monni, S. (author), Maas, A.P.M. (author), van Vliet, F.E. (author)
Front-end power overload protection is a vital issue in any electro-magnetic sensor. The issues around active electronically-steered arrays are more recent and pose new threats. Different categories of threats can damage the sensitive electronics in the phased-array radar, like hostile high power electro-magnetic (HPEM) pulses or the radar’s own...
conference paper 2008
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TNO Defensie en Veiligheid (author), van Dijk, R. (author), van der Houwen, E.H. (author), Maas, A.P.M. (author)
A phased-array FMCW radar has been design and built from COTS components. The generation of the frequency sweep is done by mixing a central local oscillator signal with a baseband sweep of a direct digital synthesizer (DDS). To ensure maximum flexibility the receive side has been equipped with it's own swept signal. The transmit frequency...
conference paper 2008
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Martens, M.H. (author), Fox, M. (author), TNO Defensie en Veiligheid (author)
Fixation times are known to decrease after multiple exposures to the same road in simulated environments. The present study investigates whether this also holds for real driving and for watching a video, which was taped during driving (while simulating steering and braking). It appeared that the fixation times for traffic signs, information...
article 2007
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Bosch-Rekveldt, M.G.C. (author), van Hoof, J.F.A.M. (author), TNO Wegtransportmiddelen (author)
This study investigates the relevance of certain parameters for virtual testing of the driver's side OOP problem and attempts to answer the following questions: Which level of detail is needed in the airbag models to assess occupants' injury values for OOP scenarios? What is the influence of the airbag cover on the occupant response for OOP...
conference paper 2004
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van Hoof, J.F.A.M. (author), Atkinson, P. (author), Telehowski, P. (author), Bir, C. (author), TNO Wegtransportmiddelen (author)
Recent laboratory investigations suggest that a deploying airbag may fracture the forearm. These studies positioned the arm in an overhand grasp placing the forearm over the airbag module. However, there is little published data on how drivers grip the steering wheel and the general proximity of the upper extremity to the airbag module. The...
report 2002
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Lupker, H.A. (author), Zuurbier, J. (author), Verschuren, R.M.A.F. (author), Jansen, S.T.H. (author), Willemsen, D.M.C. (author), TNO Wegtransportmiddelen (author)
Arguments for 'by-wire' systems include production costs, packaging and traffic safety. Innovations concern both product and development process e.g. combined virtual engineering and Hardware-in-the-loop testing. Three Steer-by-wire systems are discussed: a steering system simulator used as a driving laboratory, a side-stick system for...
conference paper 2002
document
Zuurbier, J. (author), Hogema, J.H. (author), Brekelmans, J.A.W.J. (author), TNO Wegtransportmiddelen (author)
This paper describes a study that was conducted to investigate the possibilities for optimizing task performance when driving a side stick-steered vehicle. Using steer-by-wire technology, a conventional steering system was mimicked, thus yielding the possibility to modify the steering characteristics in the control software. The front wheel...
conference paper 2000
document
Stulemeijer, J. (author), van Vliet, F.E. (author), Benoist, K.W. (author), Maat, D.H.P. (author), Smit, M.K. (author), TNO Fysisch en Elektronisch Laboratorium (author)
Feasibility of an extremely compact photonic integrated circuit for controlling phase and amplitude of a 16- element phased-array microwave antenna has been demonstrated experimentally
article 1999
document
Zuurbier, J. (author), Göbel, M.P. (author)
In recent years, there is an increasing interest in optimising driver-vehicle interaction by improving vehicle dynamics. Understanding the relation between subjective and objective assessment of vehicle dynamics is an increasingly important issue. There are several reasons for these developments. Firstly, vehicle design engineers experience that...
conference paper 1999
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Nijenboer, F.J. (author), Otten, M.P.G. (author), TNO Fysisch en Elektronisch Laboratorium (author)
The Dutch PHARUS system is a polarimetric active phased array SAR capable of performing advanced SAR modes. Advanced SAR modes that are being investigated are: spotlight SAR, sliding spotlight SAR, stepped frequency SAR and interferometric SAR. The flight experiments and automatic beam steering implementations are carried out in co-operation...
conference paper 1999
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TNO Technische Menskunde (author), van Winsum, W. (author), Korteling, J.E. (author)
To investigate the possibilities for application of low-cost simulators within military training courses, the research project called elstar (European Low-cost Simulation Technology for the Armed forces) is carried out under contract of the Ministries of Defence of the five participating countries of Research Technology Project (RTP) 11.8, viz....
report 1998
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Jansen, S.T.H. (author), TNO Wegtransportmiddelen (author)
A concept vehicle with active rear steering for yaw motion control has been developed at the TNO Road-Vehicles Research Institute in co-operation with PSA. The work has been carried out in the scope of a PROMETHEUS project, and is concentrated on the aspect of Safe Driving. The main objectives for the control design are improved vehicle...
conference paper 1997
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Jansen, S.T.H. (author), TNO Wegtransportmiddelen (author)
A concept vehicle with active rear steering for yaw motion has been developed at the TNO Road-Vehicles Research Institute in co-operation with PSA. TNO has designed the system, developed the hardware of the system and has developed the basic steering strategies. This paper discusses how simulation has been used in the various stages of...
conference paper 1997
document
van Winsum, W. (author), Godthelp, J. (author), TNO Technische Menskunde (author)
The relation between speed choice and steering performance during curve negotiation was studied in a driving simulator. The hypothesis was that curve radius and steering competence both affect steering error during curve driving, resulting in compensatory speed choice. In this, the control of safety margins was assumed to operate as a regulatory...
article 1996
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