Electro-hydraulic brake system and vehicle brake having the same
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United States of America Patent
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Jul 23, 2013
Grant Date -
Jan 21, 2010
app pub date -
Jul 18, 2008
filing date -
Jul 18, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
An electro-hydraulic brake system for a vehicle can include at least one hydraulic piston that exerts a force on a brake pad in a direction away from a brake disk and opposite to a force exerted, e.g., by a spring, on the brake pad in a direction toward the disk. A hydraulic pressure actuator can in one embodiment actuate the hydraulic piston to hold the brake in a disengaged position. A controller can in one embodiment actuate the hydraulic pressure actuator to advance the brake pad into engagement with the disk to exert a braking force based on a brake command signal, and can in one embodiment actuate the hydraulic pressure actuator to retract the brake pad from engagement with the disk upon receipt of a brake release signal. In one embodiment, the brake pad can move into engagement with the brake disk when an emergency (e.g., a loss of power or hydraulic pressure) occurs.
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