Vehicle pedal assembly including a hysteresis feedback device
First Claim
1. A control pedal assembly adapted for use on a motor vehicle including a pedal arm pivotally mounted at one end thereof to a support structure mounted on the motor vehicle and a feedback apparatus for generating a feel in response to pivotal movement of the pedal arm, characterized in that the feedback apparatus comprises:
- a spring mounted on the support structure and arranged to exert a spring force against the pedal arm that varies in response to pivotal movement of the pedal arm;
a first friction surface defined by a first friction plate secured to the pedal arm; and
a second friction surface defined by a second friction plate secured to the spring and arranged for wiping coaction with the first friction surface in response to pivotal movement of the pedal arm.
10 Assignments
0 Petitions
Accused Products
Abstract
An electronic adjustable control pedal assembly for a motor vehicle including a carrier, a guide rod adapted to be secured to the dash panel of the vehicle and mounting the carrier for fore and aft movement along the guide rod, a power drive operative to move the carrier along the guide rod, and a pedal structure including a pedal arm pivotally mounted on the carrier and a potentiometer mounted on the carrier and operative to generate an output electrical signal proportioned to the extent of pivotal movement of the pedal arm. The pedal assembly further includes a feedback apparatus for generating a feel in response to pivotal movement of the pedal arm. The feedback apparatus includes a spring to exert a spring force against the pedal arm that varies in response to the pivotal movement of the pedal arm, a first friction surface on the pedal arm, and a second friction surface on the spring for wiping coaction with the first friction surface in response to the pivotal movement of the pedal arm to provide a hysteresis effect for the pedal assembly.
76 Citations
11 Claims
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1. A control pedal assembly adapted for use on a motor vehicle including a pedal arm pivotally mounted at one end thereof to a support structure mounted on the motor vehicle and a feedback apparatus for generating a feel in response to pivotal movement of the pedal arm, characterized in that the feedback apparatus comprises:
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a spring mounted on the support structure and arranged to exert a spring force against the pedal arm that varies in response to pivotal movement of the pedal arm; a first friction surface defined by a first friction plate secured to the pedal arm; and a second friction surface defined by a second friction plate secured to the spring and arranged for wiping coaction with the first friction surface in response to pivotal movement of the pedal arm. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A control pedal assembly adapted for use on a motor vehicle including:
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a support structure adapted to be mounted on a body structure of the motor vehicle; a pedal structure including a pedal arm pivotally mounted at one end thereof to the support structure on a pivot axis; a cam surface defined on the pedal arm that is eccentric with respect to the pivot axis of the pedal arm; a leaf spring fixedly secured at an end thereof to said support structure and having a free end biased against said cam surface so that pivotal movement of the pedal arm generates a wiping action between the cam surface and the free end of the spring and varies the extent of flexing of the spring about its fixed end; and the cam surface is defined by a first friction plate secured to the pedal arm; and
a second friction plate is secured to the free end of the spring for wiping engagement with the first friction plate. - View Dependent Claims (10, 11)
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Specification