Vehicle non-volatile memory system

Details Vehicle non-volatile memory system Vehicle non-volatile memory system

1996-06-13

2000-03-28

Louis-Jacques, Jacques H.

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Vehicle diagnosis or maintenance indication

701115, 702 92, 702149, 33356, 33361, 340459, 340438, G06F 700

Patent

active

060443154

ABSTRACT:
An electronic vehicle accessory includes a non-volatile memory, and a controller coupled to the non-volatile memory and to a speed sensor of the vehicle for receiving speed data representing the vehicle's current speed. The controller determines when the vehicle's current speed falls below a predetermined threshold and stores variable data in the non-volatile memory when the vehicle's speed is below the predetermined threshold. The electronic vehicle accessory may be an instrument panel, an electronic compass, and/or a mini-trip computer, which may be housed in an overhead housing. By storing variable data in the non-volatile memory as a function of the vehicle's speed, the present invention ensures that the most up-to-date data is stored in the non-volatile memory before the vehicle's ignition is turned off while eliminating excessive stores that shorten the lifetime of the non-volatile memory. Further, by storing data as a function of vehicle speed, the connection to a battery powerline may be eliminated and the manufacturing and installation costs may be significantly reduced. Additionally, excessive battery drain resulting from the electronic accessory being locked in a failure mode may be prevented.

REFERENCES:
patent: 4546551 (1985-10-01), Franks
patent: 4570228 (1986-02-01), Ahlberg
patent: 4692882 (1987-09-01), Skovgaard et al.
patent: 4853859 (1989-08-01), Morita et al.
patent: 4858133 (1989-08-01), Takeuchi et al.
patent: 4858135 (1989-08-01), Clish et al.
patent: 4866616 (1989-09-01), Takeuchi et al.
patent: 5090231 (1992-02-01), Gallagher
patent: 5161311 (1992-11-01), Esmer et al.
patent: 5187872 (1993-02-01), Dufour
patent: 5239470 (1993-08-01), Komatsu
patent: 5305214 (1994-04-01), Komatsu
patent: 5379219 (1995-01-01), Ishibashi
patent: 5390122 (1995-02-01), Michaels et al.

Affiliated with

Also associated with

Rating

Vehicle non-volatile memory system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Vehicle non-volatile memory system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vehicle non-volatile memory system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1334497