Brake booster sensor
AssigneeContinental Teves, Inc.
InventorsJan Hoffmann, Craig R. Belevender, Kevin M. Johnston
Life of this patent
Estimating the term…
Abstract
The present invention provides a single sensor, preferably of a capacitance type, that detects various conditions of a brake booster and the braking system. In one embodiment, the sensor is integrally formed with a reaction disc in the brake booster. Another embodiment includes forming the sensor within the poppet valve of the brake booster.
Claims20
A brake booster for an automotive braking system having a brake pedal operable by a driver to actuate a master cylinder and apply a braking force, the booster comprising:
- a piston assembly operatively connected to said brake pedal for transmitting force therebetween;
- a diaphragm separating a first chamber and a second chamber,
- a control housing connected to the diaphragm;
- an output rod operatively connected to said master cylinder, the output rod receiving forces from the piston assembly and the control housing for applying said braking force;
- and
- a sensor positioned proximate both the piston assembly and the control housing, the sensor detecting when the piston assembly contacts the sensor and when the control housing contacts the sensor for detecting the relative positions of the piston assembly and control housing.
A brake booster for an automotive braking system having a brake pedal operable by a driver to actuate a master cylinder end apply a braking force, the booster comprising:
- a piston assembly operatively connected to said brake pedal for transmitting force therebetween;
- an output rod operatively connected to said master cylinder, the output rod receiving forces from the piston assembly for applying said braking force;
- an elastomeric reaction disc interposed between the piston assembly and the output rod for transmitting forces from the piston assembly to the output rod;
- and
- the reaction disc including a sensor therein for detecting when the piston assembly presses against and compresses the reaction disc.
A brake booster for an automotive braking system having a brake pedal operable by a driver to actuate a master cylinder and apply a braking force, the booster comprising:
- a piston assembly operatively connected to said brake pedal for transmitting force therebetween;
- a diaphragm separating a first chamber and a second chamber;
- a control housing connected to the diaphragm;
- an output rod operatively connected to said master cylinder, the output rod receiving forces from the piston assembly and the control housing for applying said braking force;
- and
- a poppet valve positioned to selectively sealingly engage the piston assembly and the control housing, the poppet valve including a sensor therein for detecting when the piston assembly or when the control housing engage the poppet valve.
Dependencies are inferred from the claim text.