Pages
- 1
- 2
- document
-
Stapel, J. (author), Happee, R. (author), Christoph, M. (author), van Nes, N. (author), Martens, M. (author)This study reports usage of supervised automation and driver attention from longitudinal naturalistic driving observations. Automation inexperienced drivers were provided with instrumented vehicles with adaptive cruise control (ACC) and lane keeping (LK) features (SAE level 2). Data was collected comparing one month of driving without support to...article 2022
- document
-
Zhang, B. (author), de Winter, J. (author), Varotto, S. (author), Happee, R. (author), Martens, M.H. (author)An important question in automated driving research is how quickly drivers take over control of the vehicle in response to a critical event or a take-over request. Although a large number of studies have been performed, results vary strongly. In this study, we investigated mean take-over times from 129 studies with SAE level 2 automation or...article 2019
- document
-
Lu, Z. (author), Zhang, B. (author), Feldhütter, A. (author), Happee, R. (author), Martens, M. (author), de Winter, J.C.F. (author)In conditionally automated driving, drivers do not have to monitor the road, whereas in partially automated driving, drivers have to monitor the road permanently. We evaluated a dynamic allocation of monitoring tasks to human and automation by providing a monitoring request (MR) before a possible take-over request (TOR), with the aim to better...article 2019
- document
-
van Leeuwen, P. (author), Landman, R. (author), Buning, L. (author), Heffelaar, T. (author), Hogema, J. (author), van Hemert, J.M. (author), de Winter, J. (author), Happee, R. (author)Driver distraction is a leading cause of crashes. The introduction of in-vehicle technology in the last decades has added support to the driving task. However, in-vehicle technologies and handheld electronic devices may also be a threat to driver safety due to information overload and distraction. Adaptive in-vehicle information systems may be a...conference paper 2017
- document
-
de Winter, J.C.F. (author), Happee, R. (author), Martens, M.H. (author), Stanton, N.A. (author)Adaptive cruise control (ACC), a driver assistance system that controls longitudinal motion, has been introduced in consumer cars in 1995. A next milestone is highly automated driving (HAD), a system that automates both longitudinal and lateral motion. We investigated the effects of ACC and HAD on drivers' workload and situation awareness...article 2014
- document
-
Meijer, M. (author), Broos, W.J.C. (author), Elrofai, H.B.H. (author), de Bruijn, E. (author), Forbes, P.A. (author), Happee, R. (author)The severity of occupant injuries sustained during automotive collisions can increase when an occupant is out‐of‐position prior to the crash. Several studies have shown that muscle activation significantly affects human kinematics in low severity impacts or pre‐crash car movements. As such, it is important to quantify the influence of this...conference paper 2013
- document
- Alders, M. (author), van Hemert, J.M. (author), Pauwelussen, J.J.A. (author), Heffelaar, T. (author), Happee, R. (author), Pauwelussen, J. (author) conference paper 2012
- document
-
da Silva Peixoto de Aboim Chaves, H.M. (author), Pauwelussen, J.J.A. (author), Mulder, M. (author), van Paassen, M.M. (author), Happee, R. (author), Mulder, M. (author)Drivers usually maintain an error-neglecting control strategy (passive phase) in keeping their vehicle on the road, only to change to an error-correcting approach (active phase) when the vehicle state becomes inadequate. We developed an algorithm that is capable of detecting whether the driver is currently error-neglecting or error-correcting in...conference paper 2012
- document
-
TNO Industrie en Techniek (author), Fraga, F. (author), van Rooij, L. (author), Happee, R. (author), Wismans, J. (author), Symeonidis, I. (author), Peldschus, S. (author)Despite continuing improvements in vehicle safety, motorcyclist casualties are estimated between 13% and 17% of road fatalities. Looking at the last two ESV conferences for a tentative measure of the research effort that is geared towards motorcycle safety, oral/written papers referring to two-wheelers averaged 6%/3% of each group. This tendency...conference paper 2009
- document
-
Wismans, J.S.H.M. (author), Happee, R. (author), van Dommelen, J.A.W. (author), TNO Industrie en Techniek (author)Computational human body models are widely used for automotive crashsafety research and design and as such have significantly contributed to a reduction of traffic injuries and fatalities. Currently crash simulations are mainly performed using models based on crash-dummies. However crash dummies differ significantly from the real human body and...conference paper 2005
- document
- Happee, R. (author), Janssen, A.J. (author), Fraterman, E. (author), Monster, J.W. (author), TNO Wegtransportmiddelen (author) conference paper 2003
- document
- TNO Wegtransportmiddelen (author), Happee, R. (author), Janssen, A.J. (author), Fraterman, E. (author), Monster, J.W. (author) conference paper 2003
- document
-
Happee, R. (author), Wismans, J.S.H.M. (author), van der Horst, M.J. (author), Bovendeerd, P.H.M. (author), Kingma, H. (author), TNO Wegtransportmiddelen (author)To study the mechanics of the neck during rear end impact, in this paper an existing global human body model and an existing detailed submodel of the neck were combined into a new model. The combined model is validated with responses of volunteers and post mortem human subjects (PMHSs) subjected to rear end impacts of resp 5g and 12g. The...conference paper 2001
- document
-
van Hoof, J.F.A.M. (author), Happee, R. (author), Meijer, R. (author), Bours, R.C.H. (author), TNO Wegtransportmiddelen (author)This paper presents a MADYMO finite element model of the 50th percentile male, which was specifically developed as a virtual testing tool for automotive occupant safety. The mesh was based on the digitised geometry of a human subject in seated position to ensure the correct positioning of the internal organs. The biofidelity of the model was...conference paper 2001
- document
-
Wismans, J.S.H.M. (author), Happee, R. (author), van Hoof, J.F.A.M. (author), de Lange, R. (author), TNO Wegtransportmiddelen (author)In the crash safety field mathematical models can be applied in practically all area's of research and development including: reconstruction of actual accidents, design (CAD) of the crash response of vehicles, safety devices and roadside facilities and in support of human impact biomechanical studies. Most models of the human body used up to now...conference paper 2001
- document
-
Happee, R. (author), van Hoof, J.F.A.M. (author), de Lange, R. (author), TNO Wegtransportmiddelen (author)Mathematical modeling of the human body is widely used for automotive crash-safety research and design. Simulations have contributed to a reduction of injury numbers by optimization of vehicle structures and restraint systems. Currently, such simulations are largely performed using occupant models based on crash dummies. Mathematical modeling of...conference paper 2001
- document
-
van Hoof, J.F.A.M. (author), Happee, R. (author), Baldauf, H. (author), Puppini, R. (author), Oakley, C. (author), TNO Automotive (author)Increasingly stringent international passenger safety norms and the need to reduce vehicle body weight for environmental and protection requirements demand efficient and innovative design methods. Computer simulation, or virtual testing, allows an integrated evaluation of these aspects in the early design stages and thereby reduces costs for...conference paper 2001
- document
-
de Lange, R. (author), Happee, R. (author), Coley, G. (author), de Oliveira, P. (author), Neal-Sturgess, C.E. (author), TNO Wegtransportmiddelen (author)Pedestrian computer model validation currently relies on published data from cadaver tests, which are impact specific. Both the ethical and cost issues make large scale testing of various impact scenarios and body sizes unfeasible. This study focuses on modelling a real-world accident to determine how such a methodology can be used to further...conference paper 2001
- document
-
Happee, R. (author), Morsink, P.L.J. (author), de Lange, R. (author), Bours, R. (author), Ridella, S. (author), Nayef, A. (author), van Hoof, J. (author), TNO Wegtransportmiddelen (author)A human body model representing a mid size male has been presented at the 1998 STAPP conference. A combination of modeling techniques was applied using rigid bodies for most segments, but describing the thorax as a deformable structure. In this paper, this modeling strategy was employed to also develop a model representing a small female. The...conference paper 2000
- document
-
Happee, R. (author), Meijer, R. (author), van der Horst, M.J. (author), Ono, K. (author), Yamazaki, K. (author), TNO Wegtransportmiddelen JARI, Japan (author)At TNO an omni-directional mathematical human body model has been developed. Until now this human model has been validated for frontal and lateral loading using response data of volunteer and post mortem human subject (PMHS) sled tests. For rearward loading it has been validated for high speed impact (10 to 15g) using PMHS responses. The...conference paper 2000
Pages
- 1
- 2