Browse Topic: Turn and slip indicators

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Sensata's sensors aid blind spot monitoring for tractor-trailers24TOFHP12_0812/1/2024
Sensata Technologies' booth at this year's IAA Transportation tradeshow included two of the company's Precor radar sensors. The PreView STA79 is a heavy-duty vehicle side-monitoring system launched in May 2024 and designed to comply with Europe-wide blind spot monitoring legislation introduced in June 2024. The PreView Sentry 79 is a front- and rear-monitoring system. Both systems operate on the 79-GHz band as the nomenclature suggests. PreView STA79 can cover up to three vehicle zones: a configurable center zone, which can monitor the length of the vehicle, and two further zones that can be independently set to align with individual customer needs. The system offers a 180-degree field of view to eliminate blind spots along the vehicle sides and a built-in measurement unit that will increase the alert level when turning toward an object even when the turn indicator is not used. The system also features trailer mitigation to reduce false positive alerts on the trailer when turning. The system is UN 151 compliant.
Kendall, John
Off Throttle Steering and Obstacle Avoidance Capabilities of Personal WatercraftJ2608_202302 (Current)2/20/2023
This SAE Standard establishes a uniform test procedure and performance requirements for off throttle steering and obstacle avoidance capabilities of personal watercraft. Personal watercrafts intended to be operated by a single operator who either stands or kneels in a tray located behind a moveable handlepole are exempted from this SAE Standard. This SAE Standard does not apply to outboard powered personal watercraft and jet powered surfboards.
Personal Watercraft Committee
Motorcycle Turn Signal LampsJ131_202205 (Historical)5/1/2022
This SAE Standard provides test procedures, requirements, and guidelines for motorcycle turn signal lamps. It does not apply to mopeds.
Motorcycle Lighting Standards Committee
Illuminated Vehicle Logos - Investigation on Potential Distraction and Their Influence on Road Safety2022-01-07973/29/2022
The current development of automotive lighting strives towards more and more lighting installations on vehicles. Additionally, to that, manufacturers start animating these lighting installations as coming home or leaving home greetings from the car to the driver. In a previous paper we have shown, that these additional animations are in fact not distracting to other road users and when used correctly, e.g. in a sequential turn indicator, can be beneficial to the overall traffic safety. This study then aims to investigate the potential influence of illuminated logos on road safety. European lawmakers forbid the use of illuminated advertisements on vehicles to minimize the danger of distraction for other road users and thereby negatively influencing traffic safety. As of now, active illumination of the manufacturer’s logo is considered an advertisement. For this, a test vehicle was setup with two high luminance monitors, one at the front, one at the back, capable of producing 4000 cd/m2. With this, it was possible to efficiently vary size, form and illuminance between the logos to find a suitable range for illuminated logos. This vehicle with an illuminated logo at front and back was driven past each test subject, and their attention and distraction was measured. Additionally, a questionnaire was answered after the study to find the test subject’s objective opinions and evaluations of the illuminated logos. The results for gaze tracking show no significant differences in fixations between an illuminated logo and currently allowed light signatures. Showing an actual advertisement with different colors however, led to a significant increase in the number of fixations on the passing vehicle as well as an increase on the gaze duration on the passing vehicle. Even clearer than the objective results is the subjective evaluation. Here the light signatures with the illuminated logos were not only rated as non-distracting and were not perceived as advertisements but were also found to be more pleasing to the subjects.
Kobbert, Jonas, Hamm, Michael, Hinterwaelder, Christian, Bullough, John D.
Investigation of the Impairment on Road Traffic through Animation and Sequential Activation2021-01-08524/6/2021
Two research fields are presented in this paper covering new lighting functions. In the first part, a study is presented that evaluates distraction by light animations. 41 test subjects were involved, and a situation was constructed with several traffic participants and an animated-light vehicle parked so as to be conspicuously within the test subjects’ view. 91% of the test subjects stated they felt little or no distraction or impairment from the light display on the parked car. 29% noticed something conspicuous about the test vehicle. 22% indicated they had noticed the car’s lights flashing as its central locking system was operating. Only 7%—three of the 41 participants—noticed the animations in addition to their traffic monitoring. Of these, two said they didn’t feel disturbed at all by the animations while the third found it only very slightly distracting. Nobody said the distraction or impairment was “neutral”, “little bit” or “strong”. So this study concludes that there is no connection between annoyance, distraction, or impairment with welcome/farewell animations of a vehicle’s front or rear lighting. In a second study, the direct reaction on the visual support via dynamic turn indicators was investigated. Since the switch-on sequence (“movement”) of a turn indicator gives additional information about the intended direction, the effects on correct detectability and reaction speed have been investigated on various types of dynamic activation. Two different types of dynamic turn indicator activation used in U.S. or ECE were investigated as well as some new ideas for the type and direction of animation. The error rate for static TI detection was five times higher than for a dynamic TI. The reaction time for a dynamic TI was recorded to be 34% quicker than for a standard TI. This shows a massive improvement of nighttime traffic safety by dynamic signal functions.
Hamm, Michael, Hinterwaelder, Christian, Kobbert, Jonas
433-2 Standard Measurements for Flight Simulation QualityARINC433-2 (Current)4/5/2013
This standard is a guide to assess Synthetic Training Device (STD) quality and performance by STD operators, manufacturers, regulatory authorities and users.
Flight Simulator Engineering and Maintenance Committee
Off Throttle Steering Capabilities of Personal WatercraftJ2608_200309 (Historical)9/16/2003
This SAE Recommended Practice defines the test conditions, procedures and performance requirements for evaluating the off throttle steering capabilities of personal watercraft. This document covers both single and multiple rider craft commencing in 2006 model year. No provision of this section shall apply to PWC intended to be operated by a single operator who either stands or kneels in a tray located behind a moveable handlepole.
Personal Watercraft Committee
Lighting and Marking of Industrial Equipment on HighwaysJ99_200305 (Historical)5/1/2003
To provide specifications for lighting and marking of industrial wheeled equipment whenever such equipment is operated or traveling on a highway.
OPTC3, Lighting and Sound Committee
LIGHTING AND MARKING OF INDUSTRIAL EQUIPMENT ON HIGHWAYSJ99_198603 (Historical)3/1/1986
To provide specifications for lighting and marking of industrial wheeled equipment whenever such equipment is operated or traveling on a highway.
OPTC3, Lighting and Sound Committee
MINIMUM REQUIREMENTS FOR WHEEL SLIP BRAKE CONTROL SYSTEM MALFUNCTION SIGNALSJ1230_197910 (Historical)10/1/1979
It is recognized that a malfunction in any one of the specified areas can degrade intended performance, but that levels of malfunction or combinations thereof must be considered by the vehicle designer in determining the point at which a failure indication is warranted. Consequently, the minimum reaction recommended by this document consists of making available a malfunction signal.
Truck and Bus Brake and Adv Driver Assistance Systems SC
LIGHTING AND MARKING OF INDUSTRIAL EQUIPMENT ON HIGHWAYSJ99_197909 (Historical)9/1/1979
OPTC3, Lighting and Sound Committee
LIGHTING AND MARKING OF AGRICULTURAL EQUIPMENT ON HIGHWAYSJ137C_197706 (Historical)6/1/1977
Agricultural Tractor Standards Committee (ATSC)
Turn and Slip IndicatorAS438 (Current)9/1/1976
NOMENCLATURE AND ABBREVIATIONS, FLIGHT DECK AREAAS425B (Historical)6/1/1973
S-7 Flight Deck Handling Qualities Stds for Trans Aircraft
FLIGHT CONTROL COMPARTMENT NOMENCLATURE AND ABBREVIATIONSAS425A (Historical)7/1/1962
S-7 Flight Deck Handling Qualities Stds for Trans Aircraft
COCKPIT FLIGHT INSTRUMENT PANEL ARRANGEMENTAS278 (Historical)3/15/1953
The recommendations cover the type of flight instrumentation in use today or planned for use in the near future on transport category aircraft. Four instrument panel arrangements are shown based on the use of flight instruments presently available. Systems 1 & 2 show layouts adaptable to transport aircraft employing flight instruments in general use today. The arrangements shown in Systems 3 & 4 using computer type instruments dictate the use of an instrument combining the Direction and ADF functions - the RMI. It was felt that this was necessary in order to arrive at a better all-around standard layout and to conserve instrument panel space.
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