Brake booster vacuum prediction algorithm and method of use...

Details Brake booster vacuum prediction algorithm and method of use... Brake booster vacuum prediction algorithm and method of use...

2006-12-26

2006-12-26

McClellan, James (Department: 3683)

Fluid-pressure and analogous brake systems

Speed-controlled

Having a valve system responsive to a wheel lock signal

C303S115300

Reexamination Certificate

active

07152933

ABSTRACT:
An algorithm residing in, for example the ECM of a motor vehicle, which predicts brake booster vacuum for vehicles using vacuum for brake pedal assist. The predicted brake booster vacuum is compared to a calibrated brake booster vacuum threshold to determine if adequate brake booster vacuum is available to meet vehicle braking requirements, whereupon engine operation can be modified, as necessary, to improve intake manifold vacuum such that brake booster vacuum requirements for vehicle braking are better satisfied.

REFERENCES:
patent: 6033038 (2000-03-01), Kulkarni et al.
patent: 6305757 (2001-10-01), Ohsaki et al.
patent: 6393345 (2002-05-01), Kerns et al.
patent: 2002/0130550 (2002-09-01), Roden et al.

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