Interpretation ID: 86-2.45
TYPE: INTERPRETATION-NHTSA
DATE: 04/28/86
FROM: AUTHOR UNAVAILABLE; Erika Z. Jones; NHTSA
TO: Marshall D. Carter
TITLE: FMVSS INTERPRETATION
TEXT: This is in reply to your letter of February 18, 1986, asking two questions with respect to the Federal motor vehicle safety standards.
With respect to electric vehicles, you have asked "is there a standard regulating the minimum length of time that the hazard light must be able to function at a minimum intensity, on the service battery alone?" There is no such standard. The vehicle must be equipped with a hazard warning signal operating unit designed to conform to SAE J910, January 1966, and a hazard warning signal flasher designed to conform to SAE J945, February 1966, but there is no requirement in the Federal motor vehicle safety standard on vehicle lighting, Standard No. 108, that the hazard warning signal flashers perform for a minimum specified period of time in service.
You have also asked "Is there a requirement that the vehicle be equipped with an illuminated display, indicating gear selection?" We are unable to confirm your conclusion that there is no such requirement under Standard No. 101. Paragraph S3.2 of Standard No. 102 requires that identification of shift lever positions or patterns be permanently displayed in front of the driver. Paragraph S5.3.1 of Standard No. 101 requires illumination of the "gauges" listed in Column 1 of Table 2 that are accompanied by the word "Yes" in Column 5. The last "gauge" listed is "Automatic gear position", and the word "Yes" appears in Column 5. The automatic gear position is a "gauge" as defined by paragraph S4 of Standard No. 101, "a display that is listed in . . . Table 2 and is not a telltale". Thus the Federal standards do require illumination of the gear positions of automatic transmissions, but not of manual ones.
I hope that this responds to your questions.
SINCERELY,
Whisper Electric Car AS National Highway Traffic Safety Administration Att: Erika Jones, Office of the Chief Counsel
Dear Ms. Jones,
I am writing to obtain confirmation that the FMVSS do not regulate certain specifications and parameters of automobile performance and design.
First, I should explain that our vehicle is exclusively battery powered, with 12 X 6-volt traction batteries, plus a service battery for the auxilliary functions (lights, windshield wipers, etc.). The service battery is charged at the same time as the traction batteries. In addition, the service battery is charged while driving through a converter between the 72-volt system (traction batteries) and the 12-volt system (service battery).
Now comes an engineer with the following hypothetical: The vehicle is unable to drive because of mechanical breakdown, therefore the converter between the 72-volt and 12-volt systems cannot recharge the service battery. There is no supply of electricity nearby to recharge through the main charger. The hazard lights are engaged, running only on the service battery. The characteristics of the hazard light design and intensity aside, is there a standard regulating the minimum length of time that the hazard light must be able to function at a minimum intensity, on the service battery alone?
In the absence of NHTSA direct regulation or past practice with respect to this situation, may we suggest that fulfilling the European standard is this regard also be sufficient to the U.S. market.
A second question involves illumination within the passenger cabin. Is there a requirement that the vehicle be equipped with an illuminated display, indicating gear selection? I do not see that SN 101 requires either a display or illumination, but we request your comments.
SINCERELY,
Marshall D. Carter
(Graphics omitted)
(Graphics omitted)
MARCH 18, 1986
Dear Ms Jones,
I am also enclosing some guidelines which one of our people found by chance. I understand these to be requirements for the electric vehicles for which the Fed. Gov. has granted funding or subsidies and requirements for vehicles which the Fed. Gov. might purchase, but, while useful guide-lines, not requirements which apply generally to electrical vehicles. I would ask you to please confirm this interpretation.
WHISPER ELECTRIC CAR A/S
Marshall D. Carter
encl.: FR Part 475
Whisper Electric Car AS