Teleflex, Inc.

Drivesol Worldwide, Inc.

Jiyuan Ouyang

Christopher Rixon

A pair of first () and second () pedal levers is pivotally supported for rotation by a support (). A pair of adjustment mechanisms () interconnect the support () and the respective pedal levers () and include rods () for adjusting the operational position of the pedal levers () along the rods () between a plurality of adjusted positions. A stepper motor () and screw () unit is attached to the inner end of each rod () for moving the respective pedal levers () along the respective rods (). The assembly () is characterized by a controller () sending pulses of energy to each of the motors (), measuring the time to reach a predetermined resistance condition of each motor during each pulse, and terminating energy to both motors () in response to the time being below a predetermined time period in any pulse to either motor, thereby to synchronize the movement of both pedal levers together.

Stepping motor direct drive adjustable pedal assembly

A pair of first ( ) and second ( ) pedal levers is pivotally supported for rotation by a support ( ). A pair of adjustment mechanisms ( ) interconnect the support ( ) and the respective pedal levers ( ) and include rods ( ) for adjusting the operational position of the pedal levers ( ) along the rods ( ) between a plurality of adjusted positions. A motor ( ) and screw ( ) unit is attached to the inner end of each rod ( ) for moving the respective pedal levers ( ) along the respective rods ( ). A controller ( ) is programmed to detect a stall of either of the motors ( ). The assembly ( ) is characterized by the controller ( ) having a coordinator ( ) to automatically reposition at least one of the motors ( ) to a corrected position in response to a stall by at least one of the motors ( ).

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Windsor, CA, United States of America

Jiyuan Ouyang