Road surface friction sensor and road surface friction...

Details Road surface friction sensor and road surface friction... Road surface friction sensor and road surface friction...

2006-09-26

2006-09-26

Chin, Gary (Department: 3661)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Indication or control of braking, acceleration, or deceleration

C701S080000, C303S150000, C073S009000

Reexamination Certificate

active

07113858

ABSTRACT:
A method for cyclically controlling the braking of a vehicle includes the following steps: (a) detecting a road surface frictional force of said vehicle, (b) detecting a brake fluid pressure, and (c) controlling the brake fluid pressure in response to detected values including the brake fluid pressure and the road surface frictional force, the controlling including decreasing the brake fluid pressure in response to the road surface frictional force declining during an increase of the brake fluid pressure and increasing the brake fluid pressure in response to the road surface frictional force declining during fall-off of the brake fluid pressure.

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patent: 4958512 (1990-09-01), Johnsen
patent: 5938713 (1999-08-01), Miyazaki
patent: 6266600 (2001-07-01), Miyazaki
patent: 6772058 (2004-08-01), Miyazaki

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