Brake pedal feel emulator and method
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Jul 4, 2002
app pub date -
Jan 3, 2001
filing date -
Jan 3, 2001
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A brake pedal feel emulator that produces a pedal characteristic not unlike conventional vacuum boosted or hydraulic brake systems. The system includes a master cylinder, a first and second piston slidably carried in the master cylinder, a gas-filled bellows emulator and a spring emulator operably attached to the master cylinder, and a reservoir carrier near the master cylinder. When a brake force is manually applied, a gas within gas-filled bellows compresses thereby generating a first stage of emulator travel. Once a pre-load force is surpassed, a coil spring within the spring emulator compresses thereby generating, along with the gas-filled bellows, a second stage of emulator travel. The two stages of emulator travel comprise a characteristic rate of pedal travel versus pedal force.
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