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    ISO/TR 7997:2025

    Road vehicles — Control type and layout of transmission gear shifters and drive mode selectors
    • 발행일 : 2025-10-24
    • 발행기관 : ISO
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분야 ISO/TC 22/SC 39 : Ergonomics
적용범위

This document describes the type, layout, location, and feedback display of available electro-mechanical and electronic transmission gear shifters found in passenger cars (including sport utility vehicles and light trucks) and in commercial vehicles (including heavy trucks and buses). The transmission gear shifters are located on the steering column, instrument panel, floor and centre consoles. Specifically, this document addresses shift by-wire electro-mechanical selectors that adapt the control of vehicle movement according to road conditions and personal preference. Conventional mechanical shifters are also referenced so correspondence between traditional linear P, R, N, D, L, M/S control types, layouts, locations and direction of control motions and electro-mechanical/electronic transmission gear shifters (simply, e-shifters) can be established.

This document is based on observations and survey results described in Annexes A and B for passenger cars and commercial vehicles respectively. The results are independent of vehicle propulsion systems and define the layout, spatial orientation and control movement patterns for the following drive functions:

     drive (D=forward movement),

     reverse (R=rearward movement),

     park (P=stationary),

     neutral (N=freewheeling to allow stationary or forward-reverse without drive functions engaged),

     low (L=remain in low gear),and/or

     manual or sequential (M or S to engage manual drive mode).

The control types of the transmission gear shifters that are within scope of this document are lever (pivot, slider and gated), dial/rotary, push button and toggle switch. Paddle shifters and ‘automatic-manual shifters’ are not specifically included in the scope. However, they are referenced so that if a transmission gear shifter has a ‘manual mode’ by which drive gear control is transferred to or shared with the paddle or automatic-manual transmission it is identified.

This document also identifies control types, location and feedback displays of drive mode selectors. Their control types within scope are lever, dial/rotary, push button, toggle/rocker switch, touch screen and steering wheel paddle switches. These are located in the centre console, steering wheel or instrument panel of the vehicle. Various types of visual, auditory or haptic feedback correspond to display activations, control positions, and graphical representations in the head-up display, centre console, instrument panel, display audio or instrument cluster display. This document does not specifically include head-up displays, but it is foreseeable that graphical representations could appear in future head-up displays.

Leaving the limitations of mechanical shifters means control freedom gets bigger. It is therefore likely that control types as well as the combination of transmission and brake functions will continue to develop. In this document, specific details about hybrid or electric drives are excluded. The same is in general valid for engine brake, auxiliary brake, or regeneration/recuperation programs. However, brake functions are to some extent still mentioned as part of drive modes found in the surveys. For commercial vehicles, and with the continued introduction of electric drivelines, these brake programs are likely to get even more related to different drive modes. It is foreseen that more information can be added at later stage, as separate ISO documents.

국제분류(ICS)코드 43.040.50 : 변속기. 제동기
페이지수 57
Edition 1

이력정보

No. 표준번호 표준명 발행일 상태
1 ISO/TR 7997:2025상세보기 Road vehicles — Control type and layout of transmission gear shifters and drive mode selectors 2025-10-24 표준

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