Method for operation of a vehicle braking system
AssigneeContinetal Teves AG & Co. oHG
InventorsRobert Schmidt, Hans-Jorg Feigel, Patrick Merzoug
Life of this patent
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Abstract
Disclosed is a method for operating a vehicle brake system having a vacuum brake booster for generating an auxiliary force. An approach to a point where the auxiliary-force to actuating-force ratio falls below a predetermined ratio is detected, and a nominal pressure is generated before the above ratio falls below the predetermined ratio.
Claims8
1-7. (canceled)
A method for operating a vehicle brake system having a vacuum brake booster for generating an auxiliary-force, the method comprising:
- detecting an approach to a point where an auxiliary-force to actuating-force ratio falls below a predetermined ratio;
- and
- generating a nominal pressure before the ratio falls below a predetermined ratio.
A method according to claim 7, wherein before or when the auxiliary-force to actuating-force ratio falls below the predetermined ratio, a nominal pressure is generated higher than a nominal pressure which is required to compensate the effects the nominal pressure has on an actual pressure when the auxiliary-force to actuating-force ratio falls below a predetermined ratio.
A method according to claim 7, wherein at least one of the approach to the auxiliary-force to actuating-force ratio falling below a predetermined ratio or the ratio falling below a predetermined ratio is assessed according to a stored, calibrated booster characteristic curve.
A method according to claim 7, wherein under defined conditions, a nominal pressure is generated that is higher than the pressure which is required to compensate the effects the nominal pressure has on an actual pressure when the auxiliary-force to actuating-force ratio falls below a predetermined ratio.
Dependencies are inferred from the claim text.