Speedometer control system and speedometer control method

Details Speedometer control system and speedometer control method Speedometer control system and speedometer control method

2006-09-26

2006-09-26

Pham, Toan N. (Department: 2612)

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

C340S438000, C073S001370, C073S488000

Reexamination Certificate

active

07113082

ABSTRACT:
In a speedometer control system having wheel speed sensors as well as a vehicle speed sensor, both a PCM and a brake ECU are used to obtain vehicle speeds. Then, a signal corresponding to a vehicle speed is obtained basically from the PCM. However, if it is impossible to properly obtain a signal corresponding to a vehicle speed from the PCM, a signal corresponding to a vehicle speed is obtained from the brake ECU. Accordingly, even in the event that a signal corresponding to the vehicle speed is not obtained from the PCM, it is possible to obtain a signal corresponding to the vehicle speed from the brake ECU, and thus to display the vehicle speed on a speedometer.

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Office Action issued from German Patent Office issued on Jan. 17, 2006 for the corresponding German patent application No. 10 2004 046 254.2-54 (a copy and English translation thereof).

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