Electromechanical-magnetically integrated braking assistance device
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United States of America Patent
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Jun 5, 2018
Issued Date -
N/A
app pub date -
Dec 6, 2016
filing date -
Dec 7, 2015
priority date (Note) -
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Abstract
The invention relates to an electromechanical-magnetically integrated braking assistance device, comprising an electrical motor, an oil holder, a braking main cylinder, an assistant force generating portion, and a pedal input rod, an absolute displacement sensor or a relative displacement sensor is connected to the pedal input rod; a lead screw is sleeved over the pedal input rod, and a ball nut is sleeved over the lead screw; a ball nut bushing is fixed to the ball nut by being sleeved over the ball nut; a driven gear is fixed to the ball nut bushing by being sleeved over the ball nut bushing; and the electric motor meshes with the driven gear via a transmission mechanism. An end of the lead screw which passes through the ball nut bushing has an aperture, into which a feedback disc is installed; an end of the feedback disc is connected to an end of an output rod which is coaxially arranged with the lead screw inside the assistant force generating portion, and another end of the output rod extends into the braking main cylinder and is connected to a piston of the braking main cylinder.
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